西安交通大学《大学英语二》在线作业答案

一、单选题（共25 道试题，共50 分。）V 1. —Hello, may I talk to the headmaster now? —______________.

A. Sorry, he is busy at the moment

B. No, you can’t

C. Sorry, you can’t

D. I don’t know

正确答案：A 满分：2 分

2. We are interested in the weather because it ______ us so directly — what we wear, what we do, and even how we feel.

A. benefits

B. affects

C. affects

D. effects

正确答案：B 满分：2 分

3. The government official explained that there’s no point _______ about the cultural gap in that city.

A. to worry

B. with them worrying

C. in worrying

D. worry

正确答案：B 满分：2 分

4. The police are________ the two missing children.

A. looking out

B. looking after

C. looking for

D. looking on

正确答案：C 满分：2 分

5. If he _______such a good chance, he would have planned to learn more.

A. was giving

B. had given

C. had been given

D. was to give

正确答案：C 满分：2 分

6. —What a beautiful dress you’re wearing!— __________________.

A. No, thanks

B. Thank you

C. Yes, it is

D. Sorry, it isn’t

正确答案：B 满分：2 分

7. — What can I do for you, madam? — __________________.

A. I want a kilo of apples

B. You can go your own way

C. Thanks

D. Excuse me. I’m busy

正确答案：A 满分：2 分

8. I do not intend to follow that, because we shall have an opportunity to do so on another ______.

A. occasion

B. situation

C. condition

D. environment

正确答案：C 满分：2 分

9. Strict _____________ measures have been taken during the President's visit.

A. secure

B. security

C. safe

D. save

正确答案：B 满分：2 分

10. —It’s cold in here. Do you mind if I close the door?— __________________.

A. With pleasure

B. Yes, please

C. Of course not

D. Thank you

正确答案：C 满分：2 分

11. The furniture in his room is quite different _______ in yours.

A. from those

B. from that

C. from that one

D. from those ones

正确答案：B 满分：2 分

12. — I'm afraid I've got a terrible flu.— ____________________________

A. Never mind

B. Keep away from me

C. Better go and see a doctor

D. You need be more careful

正确答案：C 满分：2 分

13. —I’m going to America for a holiday next week.— __________________.

A. Goodbye

B. Wish you success

C. For sure

D. That’s great

正确答案：D 满分：2 分

14. — Would you like a cup of coffee?— __________________.

A. It’s very kind of you

B. No, I wouldn’t

C. Yes, please

D. Here you are

正确答案：C 满分：2 分

15. — Do you mind tel ling me where you’re from?— __________________.

A. Certainly. I’m from London

B. Sure. I was born in London

C. Not really, you can do it

D. Certainly not. I’m from London

正确答案：A 满分：2 分

16. He studied hard in his youth, _________ contributed to his great success in later life.

A. that

B. it

C. what

D. which

正确答案：A 满分：2 分

17. These two areas are similar _______ they both have a high rainfall during this season.

A. that

B. besides

C. because

D. except

正确答案：C 满分：2 分

18. She's the only child in her family, but they didn't really _______ her.

A. hurt

B. damage

C. spoil

D. harm

正确答案：C 满分：2 分

19. For a successful business, friendly and _______ staff are essential.

A. sufficient

B. effective

C. efficient

D. respective

正确答案：C 满分：2 分

20. —May I see the menu, please? I’ve been waiting an hour already— __________________

A. That is the menu, sir

B. Yes, please go on

C. Here you are, sir

D. Of course, sir

正确答案：C 满分：2 分

21. A suitcase with a shirt, trousers and shoes _______ stolen from the car.

A. have been

B. has

C. was

D. are

正确答案：C 满分：2 分

22. The difference between an African elephant and an Asian one is that the former has

A. larger

B. the large

C. more larger

D. the largest

正确答案：A 满分：2 分

23. I don’t know why she avoids _______ her opinion on the subject.

A. to give

B. to be given

C. giving

D. being given

正确答案：C 满分：2 分

24. He’s determined to finish the job __________long it takes.

A. no matter

B. however

C. wherever

D. whatever

正确答案：A 满分：2 分

25. — Do you think I could borrow your dictionary?— __________________.

A. Yes, you may borrow

B. Yes, go on

C. Yes, help yourself

D. It doesn’t matter

正确答案：C 满分：2 分

二、阅读理解（共 1 道试题，共10 分。）V 1.

Passage 2

What will man be like in the future — in 5,000 or even 50,000 years from now? We can only make guesses, of course, but we can be sure that he will be different from what he is today, for man is slowly changing all the time.

Let us take an obvious example. Man, even five hundred years ago, was shorter than he is today. Now, on average, men are about three inches taller. Five hundred years is a relatively short period of time, so we may assume that man will continue to grow taller. Again in the modern world we use our brains a great deal. Even so, we still make use of only about 20% of the brain’s capacity (容量). As time goes on, however, we shall have to use our brains more and more, and eventually we shall need larger ones! This is likely to bring about a physical change too: the head, in particular the forehead, will grow larger.

Nowadays our eyes are in constant use. In fact, we use them so much that very often they become weaker and we have to wear glasses. But over a very long period of time it is likely that man’s eyes will grow stronger.

On the other hand, we tend to make less use of our arms and legs. These, as a result, are likely to grow weaker. At the same time, however, our fingers will grow more sensitive because they are used a great deal in modern life.

But what about hair? This will probably disappear from the body altogether in course of time because it does not serve a useful purpose any longer. In the future, then, both sexes are likely to be bald.

Perhaps all this gives the impression that future man will not be a very attractive creature to look at! This may well be true. All the same, in spite of all these changes, future man will still have a lot in common with us. He will still be a human being, with thoughts and emotions similar to our own.

1). The size of man’s forehead will probably grow bigger because ____

A. he will use his brain more and more as time goes on

B. he makes use only 20% of the brain’s capacity

C. his brain has grown larger over the past centuries

D. the other 80% of his brain will grow in due time

正确答案：A 满分：2 分

2). What serves as the evidence that man is changing?

A. Man has got stronger eyes now than he ever had.

B. Man has been growing taller over the past 500 years.

C. Man’s hair is getting thinner and thinner.

D. Man’s arms and legs have b ecome lighter and weaker.

正确答案：B 满分：2 分

3). What will be true about a human being in the future?

A. He will be hairless because hair is no longer useful.

B. He will have smaller eyes and will wear better glasses.

C. His fingers will grow weaker becau se he won’t have to make use of them.

D. He will think and feel in a different way.

正确答案：A 满分：2 分

4). It is implied that _________

A. human beings will become more attractive in the future

B. body organs will become poorer if they are not used often

C. human beings hope for a change in the future life

D. future life is always predictable

正确答案：B 满分：2 分

5). The passage mainly tells us that ______

A. man’s life will be different in the future

B. man is growing taller and uglier as time passes

C. future man will look quite different from us

D. human beings’ organs will function weaker

正确答案：C 满分：2 分

三、阅读理解（共 1 道试题，共10 分。）V 1.

Passage 1

Children in the United States are exposed to many influences other than that of their families. Television is the most significant of these influences, because the habit of watching television

usually begins before children start attending school.

Parents are concerned about the lack of quality in television programs for children. The degree of violence in many of these shows also worries them. Studies indicate that, when children are exposed to violence, they may become aggressive or insecure.

Parents are also concerned about the commercials (商业广告) that their children see on television. Many parents would like to see fewer commercials during programs for children. And some parents feel that these shows should not have any commercials at all because young minds are not mature enough to deal with the claims made by advertisers.

Educational television has no commercials and has programs for children that many parents approve of. The most famous of these is Sesame Street, which tries to give preschool children a head start in learning the alphabet (字母) and numbers. It also tries to teach children useful things about the world in which they live.

Even though most parents and educators give Sesame Street and shows like it high marks for quality, some critics argue that all television, whether educational or not, is harmful to children. These critics feel that the habit of watching hours of television every day turns children into bored and passive (被动的) consumers of their world rather than encouraging them to become active explorers of it

1). Which of the following statements is not based on the passage?

A. Parents are worried about the influence from television on their children.

B. Television has much influence on children.

C. Both parents and their children like watching educational television.

D. Some critics think that television is no good for children.

正确答案：C 满分：2 分

2). In what ways do children suffer from television?

A. They become the victims of social violence.

B. They spend hours watching television instead of doing school work.

C. The programs make the children lose interest in the world.

D. The programs make the children spend too mu ch of their parents’ money.

正确答案：A 满分：2 分

3). Parents would not like their children to see commercials because ______

A. they think that their children are not old enough to handle advertising

B. commercials teach children alphabet and numbers

C. commercials help to sell products

D. they don’t like commercials

正确答案：A 满分：2 分

4). Educational television is widely appreciated because _____

A. it does have the same commercials as others

B. it offers programs for both children and their parents

C. many parents like the programs it offers for their children

D. children can learn some school subjects before they go to school

正确答案：D 满分：2 分

5). Which of the following can best serve as the title of the passage?

A. Watching Too Much Television Is Harmful to Young Minds.

B. Television Is More Harmful than Educational.

C. Television’s Influence on Children.

D. More Education Television.

正确答案：A 满分：2 分

四、阅读理解（共 1 道试题，共10 分。）V 1.

Passage 3

Do you find getting up in the morning so difficult that it’s painful? This might be called laziness, but Dr. Kleitman has a new explanation. He has proved that everyone has a daily energy cycle.

During the hours when you labor through your work, you may say that you’re “hot”. That’s true. The time of day when you feel most energetic (精力充沛) is when your cycle of body temperature is at its peak. For some people the peak comes before noon. For others it comes in the afternoon or evening. No one has discovered why this is so, but it leads to such familiar sayings as: “Get up, John! You’re late for work again!” The possible explanation to the trouble is that John is at his temperature-and-energy peak in the evening. Much family quarrelling ends when husbands and wives realize what these energy cycles mean, and which cycle each member of the family has.

You can’t change your energy cycle, but you can learn to make your life fit it better. Habit can help, Dr. Kleitman believes. If your energy is low in the morning but you have an important job to do early in the day, ris e before your usual hour. This won’t change your cycle, but you’ll work better at your low point.

Get off to a slow start which saves your energy. When you get up, sit on the edge of the bed a minute before putting your feet on the floor. Avoid the troublesome search for clean clothes by laying them out the night before. Whenever possible, do routine work in the afternoon and save tasks requiring more energy or concentration for your sharper hours.

1). According to the new findings of Dr. Kleitman, if a person finds getting up early a problem, most probably _____

A. he is a lazy person

B. he refuses to follow his own energy cycle

C.

he is not sure when his energy is low

D. he is at his energy peak in the afternoon or evening

正确答案：D 满分：2 分

2). Which of the following may lead to family quarrels according to the passage?

A. Unawareness of energy cycles

B. Familiar saying.

C. A change in a family member’s energy cycle.

D. Attempts to control the energy cycle of other family members.

正确答案：A 满分：2 分

3). If one wants to work more efficiently at his low point in the morning, he should __

A. change his energy cycle

B. overcome his laziness

C. get up earlier than usual

D. go to bed earlier

正确答案：C 满分：2 分

4). You are advised to act slow when you rise in the morning because it will _____

A. help to keep your energy for the day’s work

B. help you to control your mood early in the day

C. enable you to concentrate on your routine work

D. keep your energy cycle under control all day

正确答案：A 满分：2 分

5). Which of the following statements is NOT true?

A. Getting off to work with a minimum effort helps save one’s energy.

B. Dr. Kleitman explains why people reach their peak at different hours of day.

C. Habit helps one adapt to his own energy cycle.

D. Children have energy cycles, too.

正确答案：B 满分：2 分

五、完型填空（共 1 道试题，共20 分。）V 1.

You will find that college classes are very different from high school classes. You will have more work and responsibilities without being pushed as much. 41 , you will have more freedom —freedom to choose what to study, when to study, or 42 to study. You will need to exercise maximum self-discipline (自律). This is the hardest kind of discipline because it is self-imposed (自我约束的), and you have only yourself to 43 . The decisions you make 44 your study habits will be a 45 factor in your success, or lack of success in college.

46 , you will discover that your instructors 47 the ones you have had previously. They will expect you to 48 more 48 in your study habits and time management. Remember that much of your learning takes place outside the classroom. Your instructor will give you additional help outside of class if there is evidence that you are putting maximum effort into the course.

49 your abilities and skill mastery, you will need to manage your time effectively in order to succeed in college. A schedule 50 efficient use of time will enable you to include both work and play. When you get a job, you will soon discover that you do not work only when you wish and as you wish.

1).

A. On the other hand

B. On the one hand

C. Nevertheless

D. Therefore

正确答案：B 满分：2 分

2).

A. if

B. how

C. why

D. wjo

正确答案：B 满分：2 分

3).

A. turn of

B. answer to

C. respond to

D. act as

正确答案：B 满分：2 分

4).

A. of

B. to

C. with

D. concerning

正确答案：C 满分：2 分

5).

A. determining

B. demanding

C. deciding

D. depending

正确答案：A 满分：2 分

6).

A. However

B. Nevertheless

C. In addition

D. Except that

正确答案：A 满分：2 分

7).

A. differ from

B. are similar to

C. differ in

D. are alike

正确答案：A 满分：2 分

8).

A. take…part

B. throw…yourself

C. plunge…yourself

D. take…initiative

正确答案：D 满分：2 分

9).

A. In spite of

B. Concerning

C. Regardless of

D. On the condition of

正确答案：B 满分：2 分

10).

A. related to

B. carried on

C. relied on

D. based on

正确答案：D 满分：2 分