单选题It took 12 men 4 hours to build a structure. Working at the same rate, how many additional men could have been hired in order for the job to have taken 1 hour less?A twoB threeC fourD six.E eight
题目
two
three
four
six.
eight
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第1题：
We ( ) on it for many hours but we have not yet reached any conclusion.A、have had worked
B、have been working
C、are working
D、work
参考答案：B
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第2题：
“Mom, can I have some money?" those are the words my mother used to hear all the time.In return, I heard, "Why don' t you get a job? Not to make me happy, but so that you h ve you own money and gain a bit more responsibility.So last year I a Job working about 25 hours a week.For 35 an hour, working as a salesman in a photo studio.
After I got this job, I had to do football, homework and job (1)It was really hard for me.I was burning out, falling asleep at school and failing in many courses.My teachers were made(2)me and ye led at me: why have a job? I missed a lot of practice in football team and could only (3)back down at the match.My coach was cold at me with an unmasked question: why have a job? I told them it was for the things I need, when actually it was for the things I wanted.Needing and wanting are different.Needing something is like your only shoes have holes in them.But wanting is to have every new brand sneaker just because you like it.I start to think about if I did a wrong thing.Slowly, I learnt to (4) wise decision (5)about what I need and what I want.(完型填空)
A.On
B.Manage
C.Sit
D.At
E.At the same time
参考答案：EDCBA
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第3题：
According to American historians and specialists in demography, there are _____ great population movement in the history of the United States.A.two
B.three
C.four
D.five
正确答案：C
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第4题：
According to ILO Convention，hours of rest may be divided into no more than ______ periods on board the ship．
A.two
B.three
C.four
D.five
正确答案：A
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第5题：
共用题干
Sleeping
People who sleep for more than eight hours a night do not live as long as those who
sleep for six hours,according to the biggest study yet into sleep patterns and mortality（死
亡率）.
Scientists have no explanation for the findings and do not know if they mean people who
like a lie-in（睡懒觉）can extend their lives by sleeping less.
Although it is a common belief that sleeping for at least eight hours a night is vital for
health and well-being,the six-year study involving more than 1.1 million Americans older
than 30 found that those who slept for less than eight hours were far from doing themselves
any long-term harm.
"Individuals who now average 6.5 hours of sleep a night can be reassured that this is a
safe amount of sleep.From a health standpoint,there is no reason to sleep longer,"said
Daniel Kripke , a professor of psychiatry（精神病学）at the University of California, San
Diego.
Dr. Kripke said,"We don't know if long sleep periods lead to death.Additional studies
are needed to determine if setting your alarm clock earlier will actually improve your health."
The scientists,who were funded by the American Cancer Society,found that the best
survival rates were among the men and women who slept for seven hours a night.Those
who slept for eight hours were 12 per cent more likely to die during the six-year period of the
study,when other factors such as diet and smoking were taken into account.
Even those who spent a mere five hours a night in bed lived longer than those who slept
eight or more hours.However,an increasing death rate was found among those who slept
for less than five hours.
Dr. Kripke said,"Previous sleep studies have indicated that both short-and long-duration
（持续时间）sleep had higher mortality rates. However, none of those studies were large
enough to distinguish the difference between seven and eight hours a night,until now."Most of the participants slept for 7 hours a night during the study.
A:Right
B:Wrong
C:Not mentioned答案：C解析： -
第6题：
Everyone becomes a little more forgetful as they get older, but men's minds decline more than women's, according to the results of a worldwide survey.
Certain differences seem to be inherent in male and female brains: Men are better at maintaining and dealing with mental images (useful in mathematical reasoning and spatial skills ) , while women tend to excel (擅长) at recalling information from their brain's files (helpful with language skills and remembering the locations of objects).
Many studies have looked for a connection between sex and the amount of mental decline ( 衰退) people experience as they age, but the results have been mixed.
Some studies found more age-related decline in men than in women, while others saw the opposite or even no relationship at all between sex and mental decline．Those results could be improper because the studies involved older people, and women live longer than men: The men tested are the survivors, "so they're the ones that may not have shown such cognitive decline," said study team leader Elizabeth of the University of Warwick in England.
People surveyed completed four tasks that tested sex-related cognitive skills: matching an object to its rotated form, matching lines shown from the same angle, typing as many words in a particular category (范畴) as possible in the given time, e.g．"object usually colored gray", and recalling the location of objects in a line drawing．The first two were tasks at which men usually excel; the latter were typically dominated by women.
Within each age group studied, men and women performed better in their separate categories on average．And though performance declined with age for both genders, women showed obviously less decline than men overall.
Which of the following statements is TRUE according to the article?A.Men do better than women when it comes to learning English.
B.Women stand out at remembering people's names.
C.Men excel at typing as many words in a particular category as possible in the given time.
D.Women excel at dealing mathematic problems.答案：B解析：根据第二段Men are better at maintaining and dealing with mental images，while women tend to excel(擅长)at recalling information from their brain’s files．可推出答案为B。 -
第7题：
Everyone becomes a little more forgetful as they get older, but men's minds decline more than women's, according to the results of a worldwide survey.
Certain differences seem to be inherent in male and female brains: Men are better at maintaining and dealing with mental images (useful in mathematical reasoning and spatial skills ) , while women tend to excel (擅长) at recalling information from their brain's files (helpful with language skills and remembering the locations of objects).
Many studies have looked for a connection between sex and the amount of mental decline ( 衰退) people experience as they age, but the results have been mixed.
Some studies found more age-related decline in men than in women, while others saw the opposite or even no relationship at all between sex and mental decline．Those results could be improper because the studies involved older people, and women live longer than men: The men tested are the survivors, "so they're the ones that may not have shown such cognitive decline," said study team leader Elizabeth of the University of Warwick in England.
People surveyed completed four tasks that tested sex-related cognitive skills: matching an object to its rotated form, matching lines shown from the same angle, typing as many words in a particular category (范畴) as possible in the given time, e.g．"object usually colored gray", and recalling the location of objects in a line drawing．The first two were tasks at which men usually excel; the latter were typically dominated by women.
Within each age group studied, men and women performed better in their separate categories on average．And though performance declined with age for both genders, women showed obviously less decline than men overall.
The underlined word in the second paragraph means__________.A.natural
B.great
C.obvious
D.absolute答案：A解析：男女大脑在某些方面的差异是天生固有的。 -
第8题：
Great changes （） in China since 1978.
- A、take the place
- B、took the place of
- C、have taken place
- D、have been taken place
正确答案:C -
第9题：
For painting, the surface of a ship’s hull is divided into （）areas.
- A、two
- B、three
- C、four
- D、five
正确答案:B -
第10题：
As a CCNA candidate, you must have a firm understanding of the IPv6 address structure. Refer to IPv6 address, could you tell me how many bits are included in each filed?（）
- A、24
- B、4
- C、3
- D、16
正确答案:D -
第11题：
单选题他们工作四小时，休息八小时。（）AThey work four hours and have four hours for rest.
BThey work eight hours and have four hours for rest.
CThey work four hours and have eight hours for rest.
DThey work eight hours and have eight hours for rest.
正确答案： B解析： 暂无解析 -
第12题：
单选题As a CCNA candidate, you must have a firm understanding of the IPv6 address structure. Refer to IPv6 address, could you tell me how many bits are included in each filed?（）A24
B4
C3
D16
正确答案： D解析： 暂无解析 -
第13题：
I( )at the same job for fifteen years, and one day I just woke up and said, "Enough!"A、have been working
B、have worked
C、had worked
D、had been working
参考答案：D
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第14题：
The role of women in Britain has changed a lot in this century, () in the last twenty years. The main change has been () giving women greater equality with men. Up to the beginning of this century, women seem to have had () rights. They could not vote and were kept at home. () , as far as we know, most women were happy with this situ ation. Today, women in Britain certainly () more rights than they used to. They were () the vote in 1919. In 1970 a law was passed to give them an equal () of wealth in the case of divorce, () the Equal Pay Act gave them the right of equal pay with men for work of equal value in the same year. Yet () these changes, there are still great difference in status between men and women. Many employers seem to () the Equal Pay Act, and the average working women is () to earn only about half that a man earns for the same job. () a survey, at present, only one-third of the country’s workers are () women. This small percentage is partly () a shortage of nurseries. If there were () nurseries, twice as many women might well go out to work
A.but
B.and
C.because
D.although
参考答案：B
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第15题：
As a CCNA candidate, you must have a firm understanding of the IPv6 address structure. Refer to IPv6 address, could you tell me how many bits are included in each filed?()A. 24
B. 4
C. 3
D. 16
参考答案：D
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第16题：
______the survivors know more of how to cope with cold water in the sinking of MV Titanic in 1912 countless lives ______.
A.Have / could have been saved
B.Have / could have saved
C.Had / could has saved
D.had / could have been saved
正确答案：D
如果那些幸存者懂得多一些在冷水中的救生方法，那么在1912年泰坦尼克号沉没事件中将会有更多的生命能幸存。 -
第17题：
共用题干
Sleeping
People who sleep for more than eight hours a night do not live as long as those who
sleep for six hours,according to the biggest study yet into sleep patterns and mortality（死
亡率）.
Scientists have no explanation for the findings and do not know if they mean people who
like a lie-in（睡懒觉）can extend their lives by sleeping less.
Although it is a common belief that sleeping for at least eight hours a night is vital for
health and well-being,the six-year study involving more than 1.1 million Americans older
than 30 found that those who slept for less than eight hours were far from doing themselves
any long-term harm.
"Individuals who now average 6.5 hours of sleep a night can be reassured that this is a
safe amount of sleep.From a health standpoint,there is no reason to sleep longer,"said
Daniel Kripke , a professor of psychiatry（精神病学）at the University of California, San
Diego.
Dr. Kripke said,"We don't know if long sleep periods lead to death.Additional studies
are needed to determine if setting your alarm clock earlier will actually improve your health."
The scientists,who were funded by the American Cancer Society,found that the best
survival rates were among the men and women who slept for seven hours a night.Those
who slept for eight hours were 12 per cent more likely to die during the six-year period of the
study,when other factors such as diet and smoking were taken into account.
Even those who spent a mere five hours a night in bed lived longer than those who slept
eight or more hours.However,an increasing death rate was found among those who slept
for less than five hours.
Dr. Kripke said,"Previous sleep studies have indicated that both short-and long-duration
（持续时间）sleep had higher mortality rates. However, none of those studies were large
enough to distinguish the difference between seven and eight hours a night,until now."Sleeping for less than 5 hours each night is better than sleeping for 5 hours.
A:Right
B:Wrong
C:Not mentioned答案：B解析： -
第18题：
Everyone becomes a little more forgetful as they get older, but men's minds decline more than women's, according to the results of a worldwide survey.
Certain differences seem to be inherent in male and female brains: Men are better at maintaining and dealing with mental images (useful in mathematical reasoning and spatial skills ) , while women tend to excel (擅长) at recalling information from their brain's files (helpful with language skills and remembering the locations of objects).
Many studies have looked for a connection between sex and the amount of mental decline ( 衰退) people experience as they age, but the results have been mixed.
Some studies found more age-related decline in men than in women, while others saw the opposite or even no relationship at all between sex and mental decline．Those results could be improper because the studies involved older people, and women live longer than men: The men tested are the survivors, "so they're the ones that may not have shown such cognitive decline," said study team leader Elizabeth of the University of Warwick in England.
People surveyed completed four tasks that tested sex-related cognitive skills: matching an object to its rotated form, matching lines shown from the same angle, typing as many words in a particular category (范畴) as possible in the given time, e.g．"object usually colored gray", and recalling the location of objects in a line drawing．The first two were tasks at which men usually excel; the latter were typically dominated by women.
Within each age group studied, men and women performed better in their separate categories on average．And though performance declined with age for both genders, women showed obviously less decline than men overall.
According to the passage, which of the following can NOT be typed into the same category?A.clouD.
B.sheep
C.trees
D.goose答案：C解析：根据文章第五段People surveyed completed four tasks that tested sex-related cognitive skills：matching an object to its rotated form，matching lines shown from the same angle…推断，以白色为限定范畴可推出选项C为答案。 -
第19题：
Everyone becomes a little more forgetful as they get older, but men's minds decline more than women's, according to the results of a worldwide survey.
Certain differences seem to be inherent in male and female brains: Men are better at maintaining and dealing with mental images (useful in mathematical reasoning and spatial skills ) , while women tend to excel (擅长) at recalling information from their brain's files (helpful with language skills and remembering the locations of objects).
Many studies have looked for a connection between sex and the amount of mental decline ( 衰退) people experience as they age, but the results have been mixed.
Some studies found more age-related decline in men than in women, while others saw the opposite or even no relationship at all between sex and mental decline．Those results could be improper because the studies involved older people, and women live longer than men: The men tested are the survivors, "so they're the ones that may not have shown such cognitive decline," said study team leader Elizabeth of the University of Warwick in England.
People surveyed completed four tasks that tested sex-related cognitive skills: matching an object to its rotated form, matching lines shown from the same angle, typing as many words in a particular category (范畴) as possible in the given time, e.g．"object usually colored gray", and recalling the location of objects in a line drawing．The first two were tasks at which men usually excel; the latter were typically dominated by women.
Within each age group studied, men and women performed better in their separate categories on average．And though performance declined with age for both genders, women showed obviously less decline than men overall.
One important factor that affects the correctness of the results is that__________ .A.the old men tested may not have shown such cognitive decline
B.people surveyed are all olD.
C.people taking part in this test came from all over the worlD.
D.women live longer than men答案：A解析：由第四段的Those results could be improper because the studies involved older people，and women live longer than men…可以推出A正确。 -
第20题：
A wireless controller can reside in how many mobility groups？（）
- A、two
- B、three
- C、four
- D、one
正确答案:D -
第21题：
他们工作四小时，休息八小时。（）
- A、They work four hours and have four hours for rest.
- B、They work eight hours and have four hours for rest.
- C、They work four hours and have eight hours for rest.
- D、They work eight hours and have eight hours for rest.
正确答案:C -
第22题：
单选题（）the survivors known more of how to cope with cold water in the sinking of MV Titanic in 1912 countless lives（）.AHave／could have been saved
BHave／could have saved
CHad／could has saved
DHad／could have been saved
正确答案： D解析： 暂无解析 -
第23题：
单选题Engines for lifeboats are required to have sufficient fuel to operate for how many hours?（）A6 hours
B12 hours
C18 hours
D24 hours
正确答案： D解析： 暂无解析 -
第24题：
单选题It took 12 men 4 hours to build a structure. Working at the same rate, how many additional men could have been hired in order for the job to have taken 1 hour less?Atwo
Bthree
Cfour
Dsix.
Eeight
正确答案： C解析：
The number of men working and the hours needed for the men to complete the job are inversely related. If x represents the number of additional men needed to complete the job in 3 hours, then 4 ×12=3(12+x), x=4.