Cats are creatures of habit.They like to go to sleep about the same time every day and for a certain length of time.They seem to have a natural clock inside them that tells them when to sleep. Cats increase their regular sleep with occasional cat naps（打盹）
题目
Cats are creatures of habit.They like to go to sleep about the same time every day and for a certain length of time.They seem to have a natural clock inside them that tells them when to sleep.
Cats increase their regular sleep with occasional cat naps（打盹）.Some experts feel that humans could also benefit from this habit.Cat naps help to build up energy in the body.They are also a good way to get rid of trouble!Since cats have the same moods（情绪）as humans,some experts behave that people can improve their moods.People might become happier.
A number of famous people have copied cats by taking cat naps during the day.The naps would usually last from 15 to 30 minutes.
Winston Churchill took cat naps.So did Presidents Harry Truman,John F.Kennedy and Lyndon B.Johnson.These famous men were known for their energy.They were also able to work long hours,often into the night.Napping was their secret.
Perhaps more people learn from cats and take naps to feel better and live longer!
Taking cat naps__________.
Cats increase their regular sleep with occasional cat naps（打盹）.Some experts feel that humans could also benefit from this habit.Cat naps help to build up energy in the body.They are also a good way to get rid of trouble!Since cats have the same moods（情绪）as humans,some experts behave that people can improve their moods.People might become happier.
A number of famous people have copied cats by taking cat naps during the day.The naps would usually last from 15 to 30 minutes.
Winston Churchill took cat naps.So did Presidents Harry Truman,John F.Kennedy and Lyndon B.Johnson.These famous men were known for their energy.They were also able to work long hours,often into the night.Napping was their secret.
Perhaps more people learn from cats and take naps to feel better and live longer!
Taking cat naps__________.
A.will make a person lazy and tired
B.is a bad habit
C.will make people feel better
D.can help people become famous
B.is a bad habit
C.will make people feel better
D.can help people become famous
相似考题
更多“Cats are creatures of habit.They like to go to sleep about the same time every day and for a certain length of time.They seem to have a natural clock inside them that tells them when to sleep. ”相关问题
-
第1题：
Suppose we built a robot(机器人)to explore the planet Mars. We provide the robot with seeing detectors(探测器)to keep it away from danger. It is powered entirely by the sun. Should we program the robot to be equally active at all times? No. The robot would be using up energy at a time when it was not receiving any. So we would probably program it to stop its activity at night and to wake up at dawn the next morning.
According to the evolutionary(进化的)theory of sleep, evolution equipped us with a regular pattern of sleeping and waking for the same reason. The theory does not deny(否认)that sleep provides some important restorative functions(恢复功能). It merely says that evolution has programmed us to perform. those functions at a time when activity would be inefficient and possibly dangerous. However, sleep protects us only from the sort of trouble we might walk into;it does not protect us form. trouble that comes looking for us. So we sleep well when we are in a familiar, safe place, but we sleep lightly, if at all, when we fear that bears will nose into the tent.
The evolutionary theory explains the differences in sleep among creatures. Why do cats, for instance, sleep so much, while horses sleep so little? Surely cats do not need five times as much repair and restoration as horses do. But cats can afford to have long periods of inactivity because they spend little time eating and are unlikely to be attacked while they sleep. Horses must spend almost all their waking hours eating, because what they eat is very low in energy value. Moreover, they cannot afford to sleep too long or too deeply, because their survival(生存)depends on their ability to run away from attackers.
1. The author uses the example of the robot in space exploration to tell us _____.
A. the differences between robots and men
B. the reason why men need to sleep
C. about the need for robots to save power
D. about the danger of men working at night
2. Evolution has programmed man to sleep at night chiefly to help him _____.
A. keep up a regular pattern of life
B. prevent trouble that comes looking for him
C. avoid danger and inefficient labour
D. restore his bodily functions
3. According to the author, we cannot sleep well when we _____.
A. are worrying about our safety
B. are overworked
C. are in a tent
D. are away from home
4. Cats sleep much more than horses do partly because cats _____.
A. need more time for restoration
B. are unlikely to be attackers
C. are more alive than horses when they are awake
D. spend less time eating to get enough energy
5. Which of the following is the main idea of the passage? _____
A. Evolution has equipped all creatures with a regular pattern of sleeping and waking.
B. The study of sleep is an important part of the evolutionary theory.
C. Sleeping patterns must be taken into consideration in the designing of robots.
D. The sleeping pattern of a living creature is determined by the food it eats.
参考答案： BCADA
-
第2题：
Did you sleep well last night? Maybe many people will answer No.In fact, in the world about one in three people do not have good sleep.(1) you say you do not have good sleep, it means waking early and not getting back to sleep, of ten interrupted short period of sleep, or hours or wakefulness.You (2) get tired, worried, and anxious.Your menory and ability to remember things will be affected
Then what should you do when you have the trouble? Do not worry about it too much.First, let' s see whether you can sleep yourself.The ways are as follows:
First,(3)that your bedroom isn' t too cold or too hot Keep it dark aha quiet.
Second, check your lifestyle.:
Do not drink tea, coffee, cola or chocolate four hours before going to bed.Drink less liquid so that you can have no or fewer visits to the toilet
Set your body clock well by getting up and going to bed he fixed time every day.You (4) take any day time naps.
Develop a relaxing bedt ime habit.Read or listen to music.then take a warm bath.If you really can not sleep, try some bread, rice or mil.They will help you fall asleep.
Go for a daily walk.Natural light helps you to put your body clock into correct habits,(5) do exercise outdoors if you can.
Forget the worries of the day.Write down any worries,thoughts or uestions before you go to bed.With these written down, you will have less to think about and your sleep will become easier.(完型填空)
A.Make sure
B.May
C.If
D.Had better
E.So
参考答案：CBADE
-
第3题：
Passage 1
Plants and animals that have been studied carefully seem to have built-in clocks. These biological clocks, as they are called, usually are not quite exact in measuring time. However, they work pretty well because they are "reset" each day, when the sun comes up.
Do pigeons use their biological clocks to help them find directions from the sun? We can keep pigeons in a room lit only by lamps. And we can program the lighting to produce artificial "days",different from the day outside. After a while we have shifted their clocks. Now we take them far away from home and let them go on a sunny day. Most of thegn start out as if they know just which way to go, but choose a wrong direction. They have picked a direction that would be correct for the position of the sun and the time of day according to their shifted clocks.
It is known and experimented that homing pigeons can tell directions by the sun. But what happens when the sky is darkly overcast by clouds and no one can see where the sun is? Then the pigeons still find their way home. The salne experiment has been repeated many times on sunny days and the result was always the same. But on very overcast days clock-shifted pigeons are just as good as normal pigeons in starting out in the right directions. So it seems that pigeons also have some extra sense of direction to use when they cannot see the sun.
Naturally, people have wondered whether pigeons might have a built-in compass—something that would tell them about the directions of the earth's magnetic field. One way to test that idea would be to see if a pigeon's sense of direction can be fooled by a magnet attached to its back.
With a strong magnet close by, a compass can no longer tell direction.
To test the idea, a group of ten pigeons had strong little magnet bars attached to their backs.
Another group carried brass bars instead which were not magnetic. In a number of experiments,both groups were taken away from home and let go. On sunny days none of the magnet-pigeons was fooled. They were just as good as the brass-pigeons in starting out in the right direction toward home. On cloudy, overcast days, however, with no sun the brass-pigeons chose the right direction,but the magnet-pigeons were in trouble. They later started out in different directions and acted completely lost.
What can be inferred from the passage about biological clocks?
查看材料A．They are used by all plants and animals to tell time.
B．Pigeons' biological clocks are regulated every day with the sunrise.
C．The built-in biological clocks cannot be changed.
D．They gradually developed as pigeons grow mature.答案：B解析：根据第一段中的“However，they work pretty well because thev are‘reset’each dav，when the sun comes up．”与第二段的实验可推知B项正确。 -
第4题：
Passage 1
Plants and animals that have been studied carefully seem to have built-in clocks. These biological clocks, as they are called, usually are not quite exact in measuring time. However, they work pretty well because they are "reset" each day, when the sun comes up.
Do pigeons use their biological clocks to help them find directions from the sun? We can keep pigeons in a room lit only by lamps. And we can program the lighting to produce artificial "days",different from the day outside. After a while we have shifted their clocks. Now we take them far away from home and let them go on a sunny day. Most of thegn start out as if they know just which way to go, but choose a wrong direction. They have picked a direction that would be correct for the position of the sun and the time of day according to their shifted clocks.
It is known and experimented that homing pigeons can tell directions by the sun. But what happens when the sky is darkly overcast by clouds and no one can see where the sun is? Then the pigeons still find their way home. The salne experiment has been repeated many times on sunny days and the result was always the same. But on very overcast days clock-shifted pigeons are just as good as normal pigeons in starting out in the right directions. So it seems that pigeons also have some extra sense of direction to use when they cannot see the sun.
Naturally, people have wondered whether pigeons might have a built-in compass—something that would tell them about the directions of the earth's magnetic field. One way to test that idea would be to see if a pigeon's sense of direction can be fooled by a magnet attached to its back.
With a strong magnet close by, a compass can no longer tell direction.
To test the idea, a group of ten pigeons had strong little magnet bars attached to their backs.
Another group carried brass bars instead which were not magnetic. In a number of experiments,both groups were taken away from home and let go. On sunny days none of the magnet-pigeons was fooled. They were just as good as the brass-pigeons in starting out in the right direction toward home. On cloudy, overcast days, however, with no sun the brass-pigeons chose the right direction,but the magnet-pigeons were in trouble. They later started out in different directions and acted completely lost.
How can people shift pigeons' biological clocks?
查看材料A．By training them when they are young.
B．By minor and harmless operations.
C．By taking them really far away from home.
D．By keeping them in artificial days.答案：D解析：根据第二段中“And we can program the lighting to produce artificial‘days’，different from the day outside．After a while we have shifted their clocks．"可以得知D项正确。 -
第5题：
共用题干
第三篇
Sleeplessness
Insomnia or sleeplessness is a common complaint of women as they enter into menopause.Insomnia
means having trouble falling asleep or staying asleep or the feeling that your sleep was not adequate for you.
For women who are having night sweats,their sleep is broken by frequent awakening and therefore not re-
freshing. Generally once the night sweats are controlled a normal sleep pattern returns.If it doesn't it may
be,or have become chronic insomnia. How do you know?
If you suffer from insomnia every night or most nights for a period of one month then you have chronic
insomnia.If you're not having night sweats then it's time to look for other causes of sleeplessness. Depression
and anxiety disorders are the most common causes of chronic insomnia. If you feel depressed you need to be
checked by a qualified health care provider. Movement disorders such as restless leg syndrome are second on
the list of insomnia for them,there are new medicines that may help.Other common causes are shift work-
ing,and pain.
In up to 30%of people with chronic insomnia no cause can be identified.Medical treatment of these
people has generally been with sleeping pills.It is estimated that 25% of the adult population in America
took some type of medicines for sleep last year. It is generally agreed that sleeping pills should only be in the
lowest dose and for the shortest possible time.
Sleep hygiene is directed at changing bad sleep habits.The recommendations are：一Go to bed only
when sleepy. Do not wait up to a specilized time. Avoid caffeine and alcohol in the evening,etc.Which of the following does not fit with sleep hygiene?
A:Make a rule to go to bed at a specific time every day.
B:Go to bed when sleepy,not always at the same time.
C:Try not to drink any caffeine and alcohol in the evening.
D:Change bed sleep habits and follow doctors' advice.答案：A解析：本文第二句给了“insomnia”的定义，"Insomnia means having trouble falling asleep or sta-ying asleep or the feeling that your sleep was not adequate for you"，故选A。
文章第二段中提到的引起失眠的原因有六种，即：night sweats, depression, anxiety disor-ders,movement disorders,shift working,pain.
second on the list意思是“从重要性方面来看位于第二”。
文章第三段最后一句话提到了安眠药“…sleeping pills should only be in the lowest dose...”即应使用最小剂量。
最后一段提出建议：困了就睡和晚上不喝令人兴奋的咖啡和酒等，并不要求定时上床，故A项是错误的。 -
第6题：
共用题干
Rockets in the Sky
If someone asked you,"What color is the sky?"I expect that you would answer,"Blue."I am afraid that you would be wrong.The sky has no color.When we see blue,we are looking at blue sunlight.The sunlight is shining on little bits of dust in the air.
We know that there is air all around the world.We could not breathe without air.Airplanes could not fly without air.They need air to lift their wings.Airplanes cannot fly very high because as they go higher the air gets thinner.If we go far enough away from the earth,we find there is no air.
What is the sky?The sky is space.In this space there is nothing except the sun,the moon and all the stars. Scientists have always wanted to know more about the other worlds in the space.They have looked at them through telescopes and in this way they have found out a great deal.The moon is about 384 ,000 kilometers away from the earth.An airplane cann't fly to the moon but there is a thing that can fly even when there is no air. This is rocket.
I am sure that you are asking,"How does a rocket fly?"If you want to know,get a balloon and then blow it up until it is quite big.Do not tie up the neck of the balloon.Let go!The balloon will fly off through the air very quickly.The air inside the balloon tries to get out.It rushes out through the neck of the balloon and this pushes the balloon through the air.It does not need wings like an airplane.
This is how a rocket works.It is not made of rubber（橡胶）like a balloon,of course.It is made of metal. The metal must not be heavy but it must be very strong.There is gas inside the rocket which is made very hot. When it rushes out of the end of the rocket,the rocket is pushed up into the air.
Rockets can fly far out into space.Rockets with men inside them have already reached the moon.Several rockets,without men inside them,have been sent to other worlds much farther away.One day rockets may be able to go anywhere in the space.Which of the following statements about a rocket is NOT true?
A:It can fly when there is no air.
B:It can fly without wings.
C:It is made of strong metal.
D:It is propelled by burning gas inside it.答案：D解析：根据第一段第四句可知，天空没有颜色。
根据第二段第五句“Airplanes cannot fly very high because as they go higher the air gets thinner.”可知，由于位置越高，空气越稀薄，飞机飞不了太高。
根据第五段可知，火箭飞行的原理与没扎口的膨胀的气球相似。
根据第六段最后一句“When it rushes out of the end of the rocket , the rocket is pushed upinto the air.”可知，火箭是由热气流高速向后喷出所产生的反作用力来推动的，而不是由内部燃烧的气体推动的。
根据第六段最后一句可知，当热气从火箭尾部冲出时，火箭被送人空中。C项中的“itsbottom”是第六段最后一句中的“the end of the rocket”的同义转换。 -
第7题：
Text 4 When you go to bed,is it because you're tured or because you need to get up at a certain time and want to make sure you get enough sleep?Everyone has a chronotype,which is the sleep cycle that their body would naturally prefer,if left to its own devices.But society forces its own chronotype on people,too.Maybe your prefer to sleep from 2 a.m.t0 10 a.m.But if you have a typical 9-to-5 workday,to get eight hours,you'd probably need to sleep from something like 11 p.m.t0 7 a,m.Individuals'sleep is surely shaped by their jobs,their families,and their habits.But a new study shows that society can shape sleep broadly,on a population level,as well.In the paper,published in Science Advances,Olivia Walch,Amy Cochran,and Daniel Forger of the University of Michigan look at data gathered from a smartphone app to see how sleep cycles vary in different countries and among different demographics.What country people lived in didn't have any noticeable effect on when they woke up,but it was linked to what time they went to bed.And what time they went to bed was linked to how much sleep they got.So in the countries that got less sleep on average,like Japan and Brazil,it was because they were going to bed later,not because they were waking up earlier than people in countries that got more sleep on average,like the Netherlands and Belgium,where people have earlier bedtimes.But it's notable in pointing out bedtime as a problem area.A lot of the research and discussion about the tension between sleep and society has focused on the morning-how the 9-to-5 workday isn't suitable for everyone's internal clocks,how starting the school day later can help teens,who have notoriously late chronotypes,how exposing yourself to light in the moming can help keep your intemal clock wound in a way that promotes good sleep.Bedtime,meanwhile,seems like it should be more of a choice.You wake up to go somewhere,or to start fulfilling responsibilities,and you go to bed when you decide to,based on a complex calculus of how tired you are,how much sleep you want to get,and whether the chapter you were just reading in your book ended on a cliffhanger.But when people are deciding to go to bed differs significantly across societies,it seems there's something cultural at play here,too.
The factors affecting people's sleep time do not include____A.the social environment they live in
B.their individual habit
C.the assignment they would do with friends
D.the dramatic books they are immersed in答案：C解析：事实细节题。根据定位词定位到第三段和最后一段。根据文章最后一段．“也许是因为去履行责任；你去睡觉也许是因为你决定去睡觉”可知，C项曲解题意。人们即将履行的责任并非是和朋友一起，故C项错误，符合题干，故C项为正确选项。【干扰排除】根据文章第三段“但是一项新的研究表明，基于人口水平这一角度，社会环境也能广泛地影响睡眠时间”可知，A项是影响人们睡眠时间的因素；文章第三段“每个人的睡眠时间是由他们的工作、家庭和行为习惯决定的”表明B项是影响人们睡眠时间的因素；根据文章最后一段“或者你正读的那本书的那一章节是否扣人心弦”可知，D项也是影响人们睡眠时间的因素。 -
第8题：
Text 4 When you go to bed,is it because you're tured or because you need to get up at a certain time and want to make sure you get enough sleep?Everyone has a chronotype,which is the sleep cycle that their body would naturally prefer,if left to its own devices.But society forces its own chronotype on people,too.Maybe your prefer to sleep from 2 a.m.t0 10 a.m.But if you have a typical 9-to-5 workday,to get eight hours,you'd probably need to sleep from something like 11 p.m.t0 7 a,m.Individuals'sleep is surely shaped by their jobs,their families,and their habits.But a new study shows that society can shape sleep broadly,on a population level,as well.In the paper,published in Science Advances,Olivia Walch,Amy Cochran,and Daniel Forger of the University of Michigan look at data gathered from a smartphone app to see how sleep cycles vary in different countries and among different demographics.What country people lived in didn't have any noticeable effect on when they woke up,but it was linked to what time they went to bed.And what time they went to bed was linked to how much sleep they got.So in the countries that got less sleep on average,like Japan and Brazil,it was because they were going to bed later,not because they were waking up earlier than people in countries that got more sleep on average,like the Netherlands and Belgium,where people have earlier bedtimes.But it's notable in pointing out bedtime as a problem area.A lot of the research and discussion about the tension between sleep and society has focused on the morning-how the 9-to-5 workday isn't suitable for everyone's internal clocks,how starting the school day later can help teens,who have notoriously late chronotypes,how exposing yourself to light in the moming can help keep your intemal clock wound in a way that promotes good sleep.Bedtime,meanwhile,seems like it should be more of a choice.You wake up to go somewhere,or to start fulfilling responsibilities,and you go to bed when you decide to,based on a complex calculus of how tired you are,how much sleep you want to get,and whether the chapter you were just reading in your book ended on a cliffhanger.But when people are deciding to go to bed differs significantly across societies,it seems there's something cultural at play here,too.
The paper published by the professors from University ofMichigan shows that____A.many people use smartphones before going to sleep
B.the countries where people live may decide when they get up
C.Japanese go to bed later and wake up later
D.people in some European countries enjoy longer sleep time答案：D解析：推理判断题。‘根据定位词定位到第三、四段。第四段关于密歇根大学的研究成果中，荷兰和比利时的人唾得时间较长，可知一些欧洲国家的人睡眠时间较长，故D项为正确选项。【干扰排除】第三段提到用智能手机应用程序采集数据，所以A项不正确；该教授调查了不同国家人们的睡眠情况，但没有提到国家决定他们起床的时间，故B项不正确；第四段提到日本人睡得晚，但没有说他们醒得也晚，所以C项不正确。 -
第9题：
Text 4 When you go to bed,is it because you're tured or because you need to get up at a certain time and want to make sure you get enough sleep?Everyone has a chronotype,which is the sleep cycle that their body would naturally prefer,if left to its own devices.But society forces its own chronotype on people,too.Maybe your prefer to sleep from 2 a.m.t0 10 a.m.But if you have a typical 9-to-5 workday,to get eight hours,you'd probably need to sleep from something like 11 p.m.t0 7 a,m.Individuals'sleep is surely shaped by their jobs,their families,and their habits.But a new study shows that society can shape sleep broadly,on a population level,as well.In the paper,published in Science Advances,Olivia Walch,Amy Cochran,and Daniel Forger of the University of Michigan look at data gathered from a smartphone app to see how sleep cycles vary in different countries and among different demographics.What country people lived in didn't have any noticeable effect on when they woke up,but it was linked to what time they went to bed.And what time they went to bed was linked to how much sleep they got.So in the countries that got less sleep on average,like Japan and Brazil,it was because they were going to bed later,not because they were waking up earlier than people in countries that got more sleep on average,like the Netherlands and Belgium,where people have earlier bedtimes.But it's notable in pointing out bedtime as a problem area.A lot of the research and discussion about the tension between sleep and society has focused on the morning-how the 9-to-5 workday isn't suitable for everyone's internal clocks,how starting the school day later can help teens,who have notoriously late chronotypes,how exposing yourself to light in the moming can help keep your intemal clock wound in a way that promotes good sleep.Bedtime,meanwhile,seems like it should be more of a choice.You wake up to go somewhere,or to start fulfilling responsibilities,and you go to bed when you decide to,based on a complex calculus of how tired you are,how much sleep you want to get,and whether the chapter you were just reading in your book ended on a cliffhanger.But when people are deciding to go to bed differs significantly across societies,it seems there's something cultural at play here,too.
In the following part immediately after this text,the author will most probably focus on____A.what sleep patterns people have in different countries
B.the impact of culture on people's sleep
C.whether it is influential to read books before sleep
D.how many choices people have on bedtime答案：B解析：文章续写题。最后一段中，作者提出“似乎也有某种文化因素在起作用”的假设，可推断下一部分，作者会讨论关于文化对睡眠的影响的内容，故B项为正确选项。【干扰排除】作者在文中已经谈论过不同国家人的不同睡眠模式，所以下一部分可能不会再讨论这一内容，故A项不正确；文中提到睡前看的书是否扣人心弦，只是作为影响一个人决定去睡觉的时间的因素，而未展开叙述，C项不正确；D项，就寝时间方面已经在本文中讨论过，所以不会继续讨论，也排除。 -
第10题：
Cats are creatures of habit.They like to go to sleep about the same time every day and for a certain length of time.They seem to have a natural clock inside them that tells them when to sleep.
Cats increase their regular sleep with occasional cat naps（打盹）.Some experts feel that humans could also benefit from this habit.Cat naps help to build up energy in the body.They are also a good way to get rid of trouble!Since cats have the same moods（情绪）as humans,some experts behave that people can improve their moods.People might become happier.
A number of famous people have copied cats by taking cat naps during the day.The naps would usually last from 15 to 30 minutes.
Winston Churchill took cat naps.So did Presidents Harry Truman,John F.Kennedy and Lyndon B.Johnson.These famous men were known for their energy.They were also able to work long hours,often into the night.Napping was their secret.
Perhaps more people learn from cats and take naps to feel better and live longer!
Which of the following statements is NOT true?A.People should take their naps secretly.
B.Cats have the same moods as people.
C.Some famous people take cat naps.
D.Some people have full energy after they take cat naps.答案：A解析：考情点拨:推理判断题。应试指导:文章讲述人们学习猫打盹的方式有益处，而不是要人们偷偷地打盹。 -
第11题：
填空题When adults go to masquerade parties, they wear costumes which make them look like historical or political figures.____正确答案： C解析：
由题干中关键词“masquerade parties”定位到C段。题目中“wear costumes which make them look like”与原文中的“dress up like”意思相同，即“穿着像……一样”。故匹配段落为C段。 -
第12题：
单选题Night-shift workers often find it difficult to sleep in the morning because _____.Atheir internal clock will not allow them to
Bthey are often disturbed by morning visits
Cthey are not trying hard enough to do so
Dthey are too tired to go to sleep well
正确答案： D解析：
判断推理题。题目询问“夜班工人发现清晨难以入睡的原因是什么？”从文章倒数第三句“Night-shift workers often find it...”可知，难以入睡是因为身体的自然规律被打破，此时体内生物钟不允许睡觉。正确答案为A。 -
第13题：
Generally, children have a natural() about the world around them.A、curious
B、being curious
C、with curiosity
D、curiosity
参考答案：D
-
第14题：
C
Australia has a lot of lovely animals. You cannot find them anywhere else in the world. The most famous ones are kangaroos（袋鼠）and koalas（树袋熊）.
The kangaroo is the symbol of Australia. They have large eyes and ears. They don’t walk, they jump. They use their strong back legs. They can jump at 74 kilometres per hour. They can go over nine metres in one jump.Kangaroo mothers have pouches to carry their babies. The babies stay inside to get milk and keep warm.
Kangaroos are everywhere in Australia. They are on TV, in books and in the shops. But do you know that millions of kangaroos are killed every year ? There are too many of them.There are about 20 to 25 million kangaroos in Australia. That’s more than the number of people in the country.Some kangaroos go hungry because there is not enough food to eat. They break into farms for food. Farmers are very angry with them.
The koala is another famous Australian animal. They look like bears, and have small eyes and big noses. They eat leaves from gum trees（桉树）.Koalas have a special smell. They use it to mark their home—“ This is my place, you can’t come in !” Like kangaroos, a koala baby lives in its mother’s pouch, too.
66. If we want to see kangaroos and koalas in natural forests, we can go to ________ .
A. China B. France C. Australia
正确答案：C
-
第15题：
Passage 1
Plants and animals that have been studied carefully seem to have built-in clocks. These biological clocks, as they are called, usually are not quite exact in measuring time. However, they work pretty well because they are "reset" each day, when the sun comes up.
Do pigeons use their biological clocks to help them find directions from the sun? We can keep pigeons in a room lit only by lamps. And we can program the lighting to produce artificial "days",different from the day outside. After a while we have shifted their clocks. Now we take them far away from home and let them go on a sunny day. Most of thegn start out as if they know just which way to go, but choose a wrong direction. They have picked a direction that would be correct for the position of the sun and the time of day according to their shifted clocks.
It is known and experimented that homing pigeons can tell directions by the sun. But what happens when the sky is darkly overcast by clouds and no one can see where the sun is? Then the pigeons still find their way home. The salne experiment has been repeated many times on sunny days and the result was always the same. But on very overcast days clock-shifted pigeons are just as good as normal pigeons in starting out in the right directions. So it seems that pigeons also have some extra sense of direction to use when they cannot see the sun.
Naturally, people have wondered whether pigeons might have a built-in compass—something that would tell them about the directions of the earth's magnetic field. One way to test that idea would be to see if a pigeon's sense of direction can be fooled by a magnet attached to its back.
With a strong magnet close by, a compass can no longer tell direction.
To test the idea, a group of ten pigeons had strong little magnet bars attached to their backs.
Another group carried brass bars instead which were not magnetic. In a number of experiments,both groups were taken away from home and let go. On sunny days none of the magnet-pigeons was fooled. They were just as good as the brass-pigeons in starting out in the right direction toward home. On cloudy, overcast days, however, with no sun the brass-pigeons chose the right direction,but the magnet-pigeons were in trouble. They later started out in different directions and acted completely lost.
Which of the following can best describe the organization of the passage?
查看材料A．Questions are raised first and then experiments to answer them are cited.
B．Opinions are given first and then evidences against them are quoted.
C．Statements come first and examples supporting them follow.
D．People's long held beliefs are cited first and exceptions come after.答案：A解析：文章中以“Do pigeons use their biological clocks to help them find directions from the sun ”提出问题，然后通过实验来解答问题。即采用了提出问题一解答问题的模式．因此A项正确。 -
第16题：
共用题干
Sleeplessness
Insomnia or sleeplessness is a common complaint of women as they enter into menopause .In-somnia means having trouble falling asleep or staying asleep or the feeling that your sleep was not adequate for you .For women who are having night sweats,their sleep is broken by frequent a-wakening and therefore not refreshing. Generally once the night sweats are controlled a normal sleep pattern returns .If it doesn't it may be,or have become chronic insomnia. How do you know?
if you suffer from insomnia every night or most nights for a period of one month then you have chronic insomnia. If you're not having night sweats then it's time to look for other causes of sleep-lessness. Depression and anxiety disorders are the most common causes of chronic insomnia. If you feel depressed you need to be checked by a qualified health care provider. Movement disor- ders such as restless leg syndrome are second on the list of insomnia for them,there are new med-icines that may help. Other common causes are shift working,and pain.
In up to 30%of people with chronic insomnia no cause can be identified.Medical treatment of these people has generally been with sleeping pills.It is estimated that 25% of the adult popu- lation in America took some type of medicines for sleep last year. It is generally agreed that sleep-ing pills should only be in the lowest dose and for the shortest possible time.
Sleep hygiene is directed at changing bad sleep habits.The recommendations are:-Go to bed only when sleepy．-Do not wait up to a specified time．-Avoid caffeine and alcohol in the evening,etc.Which of the following does not fit with sleep hygiene?
A: Changing bad sleep habits and following doctors' advice.
B: Trying not to drink any caffeine and alcohol in the evening.
C: Going to bed when sleepy,not always at the same time.
D: Making a rule to go to bed at a specific time every day.答案：D解析：本文第二句给了“insomnia”的定义，"Insomnia means having trouble falling asleep or staying asleep or the feeling that your sleep was not adequate for you.”这三种情况都可叫做失眠。
共提到六种，即night sweats, depression, anxiety disorders, movement disorders, shift working,pain。
因第二段是列举失眠原因，second on the list指从重要性方面来看位于第二。
第三段末句提到了安眠药，谈到“...sleeping pills should only be in the lowest dose...”即应使用最小剂量。
最后一段提出建议：困了就睡和晚上不喝令人兴奋的咖啡和酒等，并不要求定时上床睡觉，故D项是错误的。 -
第17题：
共用题干
Rockets in the Sky
If someone asked you,"What color is the sky?"I expect that you would answer,"Blue."I am afraid that you would be wrong.The sky has no color.When we see blue,we are looking at blue sunlight.The sunlight is shining on little bits of dust in the air.
We know that there is air all around the world.We could not breathe without air.Airplanes could not fly without air.They need air to lift their wings.Airplanes cannot fly very high because as they go higher the air gets thinner.If we go far enough away from the earth,we find there is no air.
What is the sky?The sky is space.In this space there is nothing except the sun,the moon and all the stars. Scientists have always wanted to know more about the other worlds in the space.They have looked at them through telescopes and in this way they have found out a great deal.The moon is about 384 ,000 kilometers away from the earth.An airplane cann't fly to the moon but there is a thing that can fly even when there is no air. This is rocket.
I am sure that you are asking,"How does a rocket fly?"If you want to know,get a balloon and then blow it up until it is quite big.Do not tie up the neck of the balloon.Let go!The balloon will fly off through the air very quickly.The air inside the balloon tries to get out.It rushes out through the neck of the balloon and this pushes the balloon through the air.It does not need wings like an airplane.
This is how a rocket works.It is not made of rubber（橡胶）like a balloon,of course.It is made of metal. The metal must not be heavy but it must be very strong.There is gas inside the rocket which is made very hot. When it rushes out of the end of the rocket,the rocket is pushed up into the air.
Rockets can fly far out into space.Rockets with men inside them have already reached the moon.Several rockets,without men inside them,have been sent to other worlds much farther away.One day rockets may be able to go anywhere in the space.When an airplane flies too high,______.
A:the air will be too thin to support its wings
B:the air will become thicker
C:the air will exert pressure on it
D:the air will disappear in no time答案：A解析：根据第一段第四句可知，天空没有颜色。
根据第二段第五句“Airplanes cannot fly very high because as they go higher the air gets thinner.”可知，由于位置越高，空气越稀薄，飞机飞不了太高。
根据第五段可知，火箭飞行的原理与没扎口的膨胀的气球相似。
根据第六段最后一句“When it rushes out of the end of the rocket , the rocket is pushed upinto the air.”可知，火箭是由热气流高速向后喷出所产生的反作用力来推动的，而不是由内部燃烧的气体推动的。
根据第六段最后一句可知，当热气从火箭尾部冲出时，火箭被送人空中。C项中的“itsbottom”是第六段最后一句中的“the end of the rocket”的同义转换。 -
第18题：
共用题干
Rockets in the Sky
If someone asked you,"What color is the sky?"I expect that you would answer,"Blue."I am afraid that you would be wrong.The sky has no color.When we see blue,we are looking at blue sunlight.The sunlight is shining on little bits of dust in the air.
We know that there is air all around the world.We could not breathe without air.Airplanes could not fly without air.They need air to lift their wings.Airplanes cannot fly very high because as they go higher the air gets thinner.If we go far enough away from the earth,we find there is no air.
What is the sky?The sky is space.In this space there is nothing except the sun,the moon and all the stars. Scientists have always wanted to know more about the other worlds in the space.They have looked at them through telescopes and in this way they have found out a great deal.The moon is about 384 ,000 kilometers away from the earth.An airplane cann't fly to the moon but there is a thing that can fly even when there is no air. This is rocket.
I am sure that you are asking,"How does a rocket fly?"If you want to know,get a balloon and then blow it up until it is quite big.Do not tie up the neck of the balloon.Let go!The balloon will fly off through the air very quickly.The air inside the balloon tries to get out.It rushes out through the neck of the balloon and this pushes the balloon through the air.It does not need wings like an airplane.
This is how a rocket works.It is not made of rubber（橡胶）like a balloon,of course.It is made of metal. The metal must not be heavy but it must be very strong.There is gas inside the rocket which is made very hot. When it rushes out of the end of the rocket,the rocket is pushed up into the air.
Rockets can fly far out into space.Rockets with men inside them have already reached the moon.Several rockets,without men inside them,have been sent to other worlds much farther away.One day rockets may be able to go anywhere in the space.What color is the sky?
A:It is blue.
B:It is white.
C:It is grey.
D:It has no color.答案：D解析：根据第一段第四句可知，天空没有颜色。
根据第二段第五句“Airplanes cannot fly very high because as they go higher the air gets thinner.”可知，由于位置越高，空气越稀薄，飞机飞不了太高。
根据第五段可知，火箭飞行的原理与没扎口的膨胀的气球相似。
根据第六段最后一句“When it rushes out of the end of the rocket , the rocket is pushed upinto the air.”可知，火箭是由热气流高速向后喷出所产生的反作用力来推动的，而不是由内部燃烧的气体推动的。
根据第六段最后一句可知，当热气从火箭尾部冲出时，火箭被送人空中。C项中的“itsbottom”是第六段最后一句中的“the end of the rocket”的同义转换。 -
第19题：
Text 4 When you go to bed,is it because you're tured or because you need to get up at a certain time and want to make sure you get enough sleep?Everyone has a chronotype,which is the sleep cycle that their body would naturally prefer,if left to its own devices.But society forces its own chronotype on people,too.Maybe your prefer to sleep from 2 a.m.t0 10 a.m.But if you have a typical 9-to-5 workday,to get eight hours,you'd probably need to sleep from something like 11 p.m.t0 7 a,m.Individuals'sleep is surely shaped by their jobs,their families,and their habits.But a new study shows that society can shape sleep broadly,on a population level,as well.In the paper,published in Science Advances,Olivia Walch,Amy Cochran,and Daniel Forger of the University of Michigan look at data gathered from a smartphone app to see how sleep cycles vary in different countries and among different demographics.What country people lived in didn't have any noticeable effect on when they woke up,but it was linked to what time they went to bed.And what time they went to bed was linked to how much sleep they got.So in the countries that got less sleep on average,like Japan and Brazil,it was because they were going to bed later,not because they were waking up earlier than people in countries that got more sleep on average,like the Netherlands and Belgium,where people have earlier bedtimes.But it's notable in pointing out bedtime as a problem area.A lot of the research and discussion about the tension between sleep and society has focused on the morning-how the 9-to-5 workday isn't suitable for everyone's internal clocks,how starting the school day later can help teens,who have notoriously late chronotypes,how exposing yourself to light in the moming can help keep your intemal clock wound in a way that promotes good sleep.Bedtime,meanwhile,seems like it should be more of a choice.You wake up to go somewhere,or to start fulfilling responsibilities,and you go to bed when you decide to,based on a complex calculus of how tired you are,how much sleep you want to get,and whether the chapter you were just reading in your book ended on a cliffhanger.But when people are deciding to go to bed differs significantly across societies,it seems there's something cultural at play here,too.
From the discussion about moming,we can infer that____A.9-to-5 workday is not welcomed by most people
B.most teenagers wake up too late to school
C.what is the best time to get up is still uncertain
D.school children are notorious for going to bed too late答案：C解析：推理判断题。根据定位词定位到第五段。文章一直在讨论，但是并没有给出什么时间起床最佳，故C项为正确选项。【干扰排除】文章第五段提到“朝九晚五的工作为何不适用于每个人的生物钟”，但是并没有提到人们喜不喜欢，所以A项不正确；第五段又提到“推迟上学时间对作为夜猫子的青少年有何益处”，B、D项都未涉及，故均排除。 -
第20题：
Text 4 When you go to bed,is it because you're tured or because you need to get up at a certain time and want to make sure you get enough sleep?Everyone has a chronotype,which is the sleep cycle that their body would naturally prefer,if left to its own devices.But society forces its own chronotype on people,too.Maybe your prefer to sleep from 2 a.m.t0 10 a.m.But if you have a typical 9-to-5 workday,to get eight hours,you'd probably need to sleep from something like 11 p.m.t0 7 a,m.Individuals'sleep is surely shaped by their jobs,their families,and their habits.But a new study shows that society can shape sleep broadly,on a population level,as well.In the paper,published in Science Advances,Olivia Walch,Amy Cochran,and Daniel Forger of the University of Michigan look at data gathered from a smartphone app to see how sleep cycles vary in different countries and among different demographics.What country people lived in didn't have any noticeable effect on when they woke up,but it was linked to what time they went to bed.And what time they went to bed was linked to how much sleep they got.So in the countries that got less sleep on average,like Japan and Brazil,it was because they were going to bed later,not because they were waking up earlier than people in countries that got more sleep on average,like the Netherlands and Belgium,where people have earlier bedtimes.But it's notable in pointing out bedtime as a problem area.A lot of the research and discussion about the tension between sleep and society has focused on the morning-how the 9-to-5 workday isn't suitable for everyone's internal clocks,how starting the school day later can help teens,who have notoriously late chronotypes,how exposing yourself to light in the moming can help keep your intemal clock wound in a way that promotes good sleep.Bedtime,meanwhile,seems like it should be more of a choice.You wake up to go somewhere,or to start fulfilling responsibilities,and you go to bed when you decide to,based on a complex calculus of how tired you are,how much sleep you want to get,and whether the chapter you were just reading in your book ended on a cliffhanger.But when people are deciding to go to bed differs significantly across societies,it seems there's something cultural at play here,too.
The word"chronotype"（Para.2）is closest in meaning to_____A.the sleep cycle that body would naturally prefer
B.the time people would like to wake up
C.the bedtime people choose for themselves
D.how long people sleep everyday答案：A解析：词汇理解题。根据定位词定位到第二段。该段提到，“身体会很自然地选择让自己最舒适的睡眠周期”，可知chronotype是身体喜欢的睡眠周期，故A项为正确选项。【干扰排除】仅仅是“想醒来的时间”不是身体自然选择的结果，故B项不正确；C项“人们为自己选择的就寝时间”和D项“人们每天睡多久”不能表示身体选择的睡眠周期，均排除。 -
第21题：
Cats are creatures of habit.They like to go to sleep about the same time every day and for a certain length of time.They seem to have a natural clock inside them that tells them when to sleep.
Cats increase their regular sleep with occasional cat naps（打盹）.Some experts feel that humans could also benefit from this habit.Cat naps help to build up energy in the body.They are also a good way to get rid of trouble!Since cats have the same moods（情绪）as humans,some experts behave that people can improve their moods.People might become happier.
A number of famous people have copied cats by taking cat naps during the day.The naps would usually last from 15 to 30 minutes.
Winston Churchill took cat naps.So did Presidents Harry Truman,John F.Kennedy and Lyndon B.Johnson.These famous men were known for their energy.They were also able to work long hours,often into the night.Napping was their secret.
Perhaps more people learn from cats and take naps to feel better and live longer!
This selection was probably written to__________.A.show how lazy cats are
B.talk about the habits of cats
C.tell about famous people and their habits
D.persuade people to take naps答案：D解析：考情点拨:推理判断题。应试指导:全文讲述打盹的好处，所以本文的目的是劝人们学会打盹。
-
第22题：
单选题Why can all the astronauts sleep at the same time?AThey have to follow the same timetable
BThe radio will take care of the aircraft for them.
CThere are enough sleeping bags in the spacecraft.
DThere is no need for them to watch over the spacecraft.
正确答案： C解析：
细节题。短文的第二段第二句补充解释了原因“No one has to stay awake to watch over the spacecraft”，他们没有必要照看飞船。D项是对这句话的同义转述，正确选项。A项无中生有，文中没有提到他们必须遵守同样的作息时间，故排除。B项是对“the craft’s computers call us on the radio”的错误理解。C项答非所问，题目问的是所有人可以同时睡觉的原因，与睡袋是否足够没有关系。 -
第23题：
单选题When we say that two objects have relative motion, we mean （）.Athe distance between them remains the same
Bthe distance between them is changing
Cthe position between them is not changing
Dtheir positions to the earth remain the same
正确答案： C解析： 暂无解析