单选题Five hundred families were surveyed about the number of computers in their home. The circle graph seen below shows the results. How many families had no computer?A 25B 50C 100D 125E 200
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更多“单选题Five hundred families were surveyed about the number of computers in their home. The circle graph seen below shows the results. How many families had no computer?A 25B 50C 100D 125E 200”相关问题
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第1题：
The chart shows that from 2005 to 2008，．
A．the percentage of the Spanish families with a computer rose 35 points
B．the percentage of the White families with a computer remained unchanged
C．the number of the Black families with a computer was on the decrease
D．the number of the Asian families with a computer showed the sharpest increase
正确答案：D
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第2题：
Without them, you are ___ with couples and families who prefer to stay home and watch home.A.left
B.leaving
C.leave
D.leaved
正确答案:A
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第3题：
This is not the world we know. This world is controlled by computers. Men and women can be seen, but they are following the orders given to them by machines. The machines were designed by mad scientists, but at some point even the mad scientists were taken over by their super-inventions.
Does this sound familiar? You have probably read something like it in magazines or books, or seen it in a film. Why is it so popular? One of the reasons is that it reflects the fears of many people; fear of the unknown fear of what is not understood or, at least, fear of something that is not completely understood.
The fact is that every day it seems that computers take control of another area of our lives. Some
factory jobs are now done by robots and the robots are controlled by computers. Our bank accounts are managed by computers. At the airport, our tickets are sold by a computer. Certainly, many of these operations are made more
efficient by computers, but our admiration is sometimes mixed with unsafe feelings. And this lack of safety is caused by the fact that we do not know how computers do these things, and we really don't know what they might do next. But we can find out how computers work, and once we understand them, we can use computers instead of worrying about being used by them. Today, there is a new generation of computer wizards who know exactly how computers get things done. These young men and women, usually university students, are happy to sit for hours, sometimes for days, designing programs, not eating, not sleeping, but discovering what can be done by these wonderful slaves which they have learned to control. These computer wizards have learned to use the computer and search for new tasks for their machines.
(1)、According to the passage, our present world is under the control of ______ .
A：mad scientists
B：men and women
C：the unknown fear
D：some super-inventions
(2)、The reason why many people are afraid of computers is that ______ .
A：they don't know anything about computers
B：they haven't really understood computers
C：there are so many computer games
D：computers are often down
(3)、The author mentions computer wizards in order to point out that ______ .
A：computers can be controlled by man
B：there should be more people devoted to computers
C：only young people are interested in computers
D：more time and energy is required to control computers
(4)、This passage is probably written to suggest that ______ .
A：some day computers can deal with all human problems
B：computers can be used in place of traveling to our jobs
C：people should not fear computers
D：computer technology will not meet people's needs in various situations
(5)、The author's attitude towards widely used computers is __.
A：positive
B：anxious
C：worried
D：serious
正确答案：D、B、A、C、A -
第4题：
共用题干
Step Back in Time
Do you know that we live a lot longer now than the people who were born before us?One
hundred years ago the average woman lived to be 45.But now,she can live until at least 80.
One of the main reasons for people living longer is that we know how to look after
ourselves better. We know which foods are good for us and what we have to eat to make
sure our bodies get all the healthy things they need.We know why we sometimes get ill and
what to do to get better again.And we know how important it is to do lots of exercise to
keep our hearts beating healthily.
But in order that we don't slip back into bad habits,let's have a look at what life was
like 100 years ago.
Families had between 15 and 20 children,although many babies didn't live long.
Children suffered from lots of diseases , especially rickets（佝偻病）and scurvy（坏血病）,
which are both caused by bad diets.This is because many families were very poor and not
able to feed their children well.
Really poor families who lived in crowded cities like London and Manchester often slept
standing up,bending over a piece of string,because there was no room for them to lie down.
People didn't have fridges until the 1 920s.They kept fresh food cold by storing it on
windowsills（窗台板）,blocks of ice, or even burying it in the garden.
Some children had to start work at the age of seven or eight to earn money for their
parents. If you had lived 1 00 years ago , you might well be selling matchsticks（火柴杆）(a
job done by many children)or working with your dad by now.Life was not easy for many children living 100 years ago.
A:Right
B:Wrong
C:Not mentioned答案：A解析： -
第5题：
共用题干
Step Back in Time
Do you know that we live a lot longer now than the people who were born before us?One hundred years ago the average woman lived to be 45.But now,she can live until at least 80.
One of the main reasons for people living longer is that we know how to look after ourselves better.We know which foods are good for us and what we have to eat to make sure our bodies get all the healthy things they need.We know why we sometimes get ill and what to do to get better again.And we know how important it is to do lots of exercise to keep our hearts beating healthily.
But in order that we don't slip back into bad habits,let's have a look at what life was 100 years ago
Families had between 15 and 20 children,although many babies didn't live long.from lots of diseases , especially rickets (佝偻病）and scurvy（坏血病）,which are bot diets.This is because many families were very poor and not able to feed their children well.
Really poor families who lived in crowded cities like London and Manchester often slept standing up,bending over a piece of string,because there was no room for them to lie down.
People didn't have fridges until the 1920s.They kept fresh food cold by storing it on windowsills（窗台板）,blocks of ice,or even burying it in the garden.
Some children had to start work at the age of seven or eight to earn money for their pai lived 100 years ago,you might well be selling matchsticks（火柴杆）(a job done by many children）or working with your dad by now.A hundred years ago many kids died at an early age.
A:Right
B:Wrong
C:Not mentioned答案：A解析：文章第一段虽然提到现在女性的寿命要比一百年前长，但并没有提及一百年前女性是否比男性寿命要长，故选C。
文章第二段明确介绍了人们现在比过去长寿的原因，故选B。
文章第四段第一句说一百年前，许多孩子很小便夭折了，故选A。
文章第四段第二句话中“… rickets and scurvy , which are both caused by bad diets.”可知，佝偻病与坏血病都是由饮食不良引起的，故选A。
文章第五段提到，人们过去之所以站着睡觉是因为房子太小，没有躺下的空间，而非出于喜欢，故选B。
文章第六段只是说，直到20世纪20年代人们才有了冰箱可用，但并没有说明冰箱是谁发明的，故选C。
从文章第四段以及最后一段可以看出，一百年前，生活对于许多孩子来说都是十分不易的，故选A。 -
第6题：
The company had about 20 notebook computers,but only one-third__________used regularly.A.is
B.are
C.was
D.were答案：D解析：考情点拨:本题考查时态和主谓一致。应试指导:句意：这家公司大约有20台笔记表电脑，但是只有三分之一经常被使用。一般来讲，分数作主语时．谓语用单数。但是由前半句about it 20 notebook computers可知，此处用复数本句的时态是过去时，因此应该用were。 -
第7题：
我国工频交流电的频率为（）Hz。
- A、25
- B、50
- C、100
- D、200
正确答案:B -
第8题：
单选题The table below summarizes the results of a survey in which families reported the number of television sets they have in their homes. What percent of the families surveyed have two or fewer television sets?A75%
B68%
C60%
D40%
E33%
正确答案： C解析：
According to the table, 32 + 80 + 160 + 83 + 45 or 400 families were surveyed. Since the number of families with two or fewer television sets is 32 + 80 + 160 or 272, the percent of families surveyed with two or fewer television sets is (272/400)×100% or 68%. -
第9题：
单选题According to the passage, one of the reasons why readers in the 1920s and 130s were attracted by free insurance policies was that ______.Athey were afraid of being unable to work
Bjobs were more dangerous then
Cthey had bigger families to look after
Dmoney was given away with the policies
正确答案： A解析：
文中提到20世纪20、30年代是一个充斥着mass unemployment-economic insecurity和a passionate concern for the next generation的年代，由此可知读者之所以会对报纸和杂志提供的免费保险所吸引是因为他们担心失去工作后没有依靠，故A项正确。 -
第10题：
单选题The sentence “Children are a relatively modern invention” underlined in Paragraph 1 means that children .Awere exactly the same as adults a few hundred years ago
Bdid not exist at that time because there were no families yet
Cwere not different from adults in physical appearance
Dwere not different from adults
正确答案： C解析：
语义题。第一段第二句指出“几百年前，孩子们看上去就像成人一样：他们穿着成人的衣服，带着成人的表情并且完成着成人的任务”。由此可知划线部分所描述的“相对而言，孩子是个现代发明”，指的是“几百年前的孩子和成人一样，并不会受到区别对待，故选D。 -
第11题：
单选题Consider the following: Which statement best describes the meaning of the value for the key_len column?（）AIt shows the total size of the index row
BIt shows how many columns in the index are examined
CIt shows the number of characters indexed in the key
DIt shows how many bytes will be used from each index row
正确答案： A解析： 暂无解析 -
第12题：
单选题A total of 250 students participate in five different school-sponsored clubs. The bar graph below shows the number of students who participate in each club. 40% of the members of Club A are in Club B. How many of the members in Club A are not in Club B?A28
B32
C42
D48
E52
正确答案： E解析：
40% of the students in Club A are in Club B. That means 60% of the students in Club A are not in Club B. Find 60% of 70. 0. 60×70 = 42 students in Club A are not in Club B. -
第13题：
(英译汉)The weekends are a time for families in Britain. Often the parents are not at work. Having worked a five-day week from Monday to Friday, Saturdays are a busy time for shops with many families going shopping. Sundays used to be a very special day of the week in Britain. It was the one day of the week for "worship and rest". The shops were closed and most people were at home or at church. Popular leisure activities on Sunday used to be going to church and doing odd jobs around the home such as gardening and DIY.
参考答案：英国家庭在周末时，父母经常不上班，他们只是在周一到周五是工作日，周六是与很多朋友出去忙于购物的时间。在英国周日是最特别的日子，是一个星期中”做礼拜和休息“的日子。商店关门，大多数人都呆在家里或在教堂。在周日最流行的休闲活动通常是去教堂、在家做杂事，如整理花园，自己动手干活(设计)。
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第14题：
Before and during World War II, families faced few financial problems in the industrialized world, so women didn’t have to work outside the home. Families were perfect.()
参考答案：错误
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第15题：
Consider the following:Which statement best describes the meaning of the value for the key_len column?()
A.It shows the total size of the index row
B.It shows how many columns in the index are examined
C.It shows the number of characters indexed in the key
D.It shows how many bytes will be used from each index row
参考答案：D
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第16题：
共用题干
Step Back in Time Do you know that we live a lot longer now than the people who were born before us?One hundred years ago the average woman lived to be 45 .But now,she can live until at least 80. One of the main reasons for people living longer is that we know how to look after ourselves better. We know which foods are good for US and what we have to eat to make sure our bodies get all the healthy things they need.We know why we sometimes get ill and what to do to get better a-gain .And we know how important it is to do lots of exercise to keep our hearts beating healthily. But in order that we don't slip back into bad habits,let's have a look at what life was like 100 years ago. Families had between 15 and 20 children,although many babies didn't live long. Children suffered from lots of diseases, especially rickets (佝偻病）and scurvy（坏血病）,which are both caused by bad diets.This is because many families were very poor and not able to feed their chil-dren well. Really poor families who lived in crowded cities like London and Manchester often slept standing up,bending over a piece of string,because there was no room for them to lie down. People didn't have fridges until the 1920s.They kept fresh food cold by storing it on window-sills（窗台板）,blocks of ice , or even burying it in the garden. Some children had to start work at the age of seven or eight to earn money for their parents. If you had lived 100 years ago, you might well be selling matchsticks（火柴杆）(a job done by many children) or working with your dad by now.A hundred years ago many kids died at an early age.
A: Right
B:Wrong
C:Not mentioned答案：A解析：文章第一段虽然提到现在女性的寿命要比一百年前长得多，但并没有提及一百年前女性是否比男性寿命要长。
文章第二段明确介绍了现在的人们比过去长寿的原因。
文章第四段第一句便说一百年前，许多孩子很小便天折了。
文章第四段提到，询楼病与坏血病都是饮食不良引发的。
文章第五段提到，人们过去之所以站着睡觉是因为房子太小，而并非出于喜欢。
文章第六段只是说，直到20世纪20年代人们才有了冰箱可用，但并没有说明冰箱是谁发明的。
从文章第四段以及最后一段不难看出，一百年前，生活对许多孩子来说都是十分不易的。 -
第17题：
共用题干
American Families
1 Despite social and economic differences among Americans,many American families have certain characteristics in common.Both the husband and wife were born in the United States,and their forefathers came from Europe.They have completed high school,and they belong to the middle class.They have a car, a television set,a washing machine,a refrigerator,a telephone,etc.They own their own home and spend about 55%of their income for housing and food.Clothing accounts for almost 10%of their income,medical care 6%,transportation 8%and taxes 15%.The rest of their income is used for such items as insurance, savings,gifts,and recreation.
2 Most families consist of a mother,a father,and,at most,two children living at home.There may be relatives-grandparents,aunts,uncles,cousins living in the same community,but American families usually maintain separate households.This family structure is known as the"nuclear family".It is unusual. for members of the family other than the husband,wife,and children to live together.
3 Marriage in the United States is considered a matte,r of individual responsibility and decision.Young people frequently fall in love and many even if their parents disagree.American marriages are usually based on romantic love,rather than on social class,education,or religion.
4 After their marriage the young couple is free to decide where to live and when to start a family.Most young couples set up their own household immediately.In the early 1970s only 15%of all married couples were not living on their own-independently and by themselves.Most married people practise some kind of birth control.They plan the number of children they are going to have and when their children will be born. The practice of limiting the size of families has general approval.The birth rate has been declining steadily in recent years.There are among many American families______.
A:live with their parents
B:their own decisions
C:most American families are usually small
D:the family structure
E:some similar features
F:has been dropping答案：E解析：第一段的主旨句是第一句：" Despite social and economic differences among Americans,many American families have certain characteristics in common." D项中的“features”是主旨句中" characteristics”的同义转换。
第二段主要讲的是美国家庭是由哪些成员组成的，即常见的美国家庭的结构。
第三段第一句是主旨句，根据其中的“Marriage”把答案圈定在A.玖F三项，又由第三段最后一句可知，美国婚姻基于真爱而非基于社会阶级、教育和宗教，排除F项。本段主要讲的是婚姻观念而非婚姻生活，因此选择E项。
第四段的主旨句是第一句，主要讲的是美国年轻夫妻的婚后生活。A项中的“post-marriage"甲是第四段第一句中“After their marriage”的同义转换。
根据第一段第一句可知，美国很多家庭都有一定的相似之处。E项中的“some similarfeatures”是第一段第一句中“certain characteristics in common”的同义转换。
根据第三段第一句“Marriage in the United States is considered a matter of individualresponsibility and decision.”可知，美国年轻人自己负责和决定他们的婚姻。B项中的“theirown decisions”是第三段第一句中“individual responsibility and decision”的同义转换。
根据第四段第二句“Most young couples set up their own household immediatily.”可知，许多年轻人在婚后立即建立自己的家庭，不再与他们的父母住在一起。
根据第四段最后一句“The birth rate has been declining steadily in recent years.”可知，出生率近年来持续下降。F项中的“dropping”是对第四段最后一句中“declining”的同义改写。 -
第18题：
How many families of MCS are defined for EGPRS?（）
- A、1
- B、2
- C、3
正确答案:C -
第19题：
问答题Practice 1 You should spend about 20 minutes on this task. The graph below shows the demand for electricity in England during typical days in autumn and spring. The pie chart shows how electricity is used in an average English home. Summarize the information by selecting and reporting the main features, and make comparisons where relevant. Write at least 150 words.正确答案： 【参考范文】
This model has been prepared as an example of a very good answer. However, please note that this is just one example out of many possible approaches.
These two diagrams respectively illustrate daily electricity consumption in England in autumn and spring, and the four specific aspects of electricity in a common English family.
From the graph, apparently, the amount of electricity consumed in autumn was twice as much as that in spring. In detail, in autumn the number hit a trough at about 30,000 units at 9 o’clock while the peak at nearly 50,000 at 22 o’clock. Between 13 to 19 o’clock there was hardly any change in the amount of electricity and in the rest of the day it fluctuated. As for spring, the lowest number was 12,000 at similar 9 o’clock, but there were two similar high points at 20,000 at both 13, and 23 o’clock, though the latter is slightly less than the former. Furthermore, compared with that in autumn, the number remained stable between 16 and 22 o’clock. The bar chart unfolds the fact that the statistics in heating was more than half of the total demand whilst the rest three in other fields, such as ovens, lighting or vacuum cleaners took up similar percentages of 17.5%, 16% and 15%.
The possible reason for these charts is heating substantially boosts electricity demand in autumn.解析： 暂无解析 -
第20题：
单选题We know from this passage that over one hundred seventy years ago ______.Ano women worked outside their homes
Bwomen were considered as children by the law
Cwomen cared nothing about how their family lives were
Dwomen were not allowed to decide how to spend their money or how to teach children
正确答案： D解析：
推理判断题。题干意为“从文章中我们可以知道170年前，美国的妇女是怎样的”。从文章的第一段最后一句话Decisions about family matter sand about the children were made by her husband, the‘head of the family’. 可知，当时，美国的妇女根本没有权利过问家庭事务，甚至是孩子的抚养等问题。所以本题的正确答案为D。 -
第21题：
单选题Which of the following is correct according to the text?AOf the criminals arrested in 1970, fifty-seven percent were youths below twenty five of age.
BLack of education has little to do with the crime rate.
CDifferences in state laws for death penalty also account for the increase of crime rate.
DDrug smuggling is the only product of too many shows and reports.
正确答案： A解析：
根据第三段“In the first place, some state laws provide a death penalty but some not.”可知，有些州存在死刑刑罚而有些州并没有，这导致了犯罪率上升。 -
第22题：
单选题—How many people were invited to the meeting?—About six ______Ahundred
Bhundreds
Chundred of
Dhundreds of
正确答案： D解析：
考查数词的用法。句意：——多少人被邀请参加会议？——大约六百人。hundred前面有具体数词修饰时，其后不能加“s”，也不与“of”连用，故选A。 -
第23题：
单选题The circle graphs below show the production numbers for certain Ford Mustangs in 1965 and 1971. Approximately how many more two-door hardtop coupes were made in 1971 than in 1965?A36,000
B38,303
C44,960
D74,303
E83,263
正确答案： D解析：
In 197l,46% + 12% = 58% of the cars listed were two-door hardtop coupes. Therefore, there were approximately 0. 58×143,557=83,263 two-door hardtop coupes produced. In 1965, 13% + 9% = 22% of the cars listed were two-door hardtop coupes. That means, there were approximately 0. 22 x 174,103 ~ 38,303 two-door hardtop coupes produced. There were approximately 83,263 - 38,303 = 44,960 more coupes produced in 1971 then in 1965.