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A centrifugal pump vibrates excessively during operationUpon disassembling the pump it is found that the impeller is out of balanceWithout an available spare, you should （）.
A . drill holes through the heavy side of the impeller until it balances
B . weld counterweights to the light side of the impeller
C . remove metal from the heavy side by machining in a lathe
D . acid wash and serape the heavy side until it balance
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It is naïve to expect that any society can resolve all the social problems it is faced with ( ).
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If you've made the right decision, don't be （) to carry it out.
A．reluctant
B．hurry
C．nervous
D．willing
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听力原文：W: Why is it that I found some letters addressed to you in my mailbox lately, Paul？
M: Didn't Mike tell you that I'm having the post office forward my mail to your place until I've got a new apartment？
Q: What's happening to Paul's letters？
(13)
A．His letters are being forwarded to his new apartment.
B．His letters are being sent to his old address.
C．He tells Mike to deliver his mail to the woman's house.
D．He has the post office deliver his mall to the woman's house.
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听力原文：M: Hi, could you tell me where the conference is being held？ I've already registered for it.
W: In the Convention Hall on the second floor, sir.
M: Thanks. Also, do you know when Professor Ferguson's presentation is going to be？ I hope I haven't missed it!
W: One of the volunteers at that desk will be able to tell you.
What does the man want to know？
A．When a meeting will start.
B．Whether there are enough chairs.
C．How to go to the second floor.
D．Where an event is being held.
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听力原文：W: I've been reading about a new snack food. It's made from fish. Have you heard anything about it？
M: No. I haven't, but 1 don't like fish very much anyway.
W: Not to worry. Although it's made primarily from fish, it actually doesn't have a fishy taste. In fact, it can be flavored with tomato, cheese, or chocolate for instance
M: How can it not taste fishy？ Do you know how this snack food is made？
W: First the fish is minced and cooked and fermented. Then water and starch are added to make a dough.
M: It sounds awful.
W: Actually the dough is very bland al that point, so the flavorings are added to give it some taste.
M: Well, it still sounds a little strange. But I suppose this product will at least be low calorie and high protein. like a health food.
W: Yes, you could call it that. And it has a long shelf life, so it won't spoil quickly. It is also easy to digest and can ha made from types of fish that usually aren't eaten, or from high grade fish by-products,
M: Mm, have you got any samples？ I might be willing to try the cheese-flavored variety.
W: No, none of it seems to be available yet. As I understand it, this fish snack food probably won't be in the stores for another couple of years. So you'll have a while to get used to the whole idea.
M: A couple of years, ah？ It may just take me that long. but thanks for telling me about it.
Which of the following is NOT mentioned in the conversation to flavor the new product with？
A．Tomato.
B．Cheese.
C．Chocolate.
D．Fish.
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It is found that insulin______.
A．is IQ gene
B．has nothing to do with IQ gene
C．stimulates nerves to grow
D．is decisive to the development of intelligence
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______ you've got a chance , you might as well make full use of it.
A．Now that
B．After
C．In that
D．As soon as
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听力原文： Could you tell me where the talk on International Banking is going to take place？ It says in the programme that it's in Room 121 but I've just been up there and it's empty. I hope it hasn't been cancelled.
？You will hear another five short recordings. Each speaker is talk about his job.
？For each recording, decide who the speaker is.
？Write on letter (A—H) next to the number of the recordings.
？Do not use any letter more than once.
？After you have listend once, replay each recording.
A waiter
B conference delegate
C builder
D bank manager
E hotel receptionist
F security guard
G telephone engineer
H secretary
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听力原文：M: When are you going to finish this report？ You've been working on it for three months.
W: Only two and a half. But it does seem longer.
Q: What does the woman say about the report？
(18)
A．It's the longest report she's ever written.
B．She's only half way done with it.
C．She'll finish it in two weeks.
D．She has spent less time on it than the man thinks.
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I have to say this, but this coat you've just bought is made of______fur; it's not real mink.
A．coarse
B．genuine
C．slippery
D．conscientiously
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The passage you've just read would most likely be found in a______.
A．notice
B．book about American history
C．short story
D．guide book for tourist
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____ you’ve found, you must give it back to the person it belongs to.
A．A.Whichever
B．B.No matter how
C．C.However
D．D.Whatever
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听力原文：Man: We all know how plans can fail to fit reality within weeks. The only way to overcome problems is to make sure you've got all the necessary information about the particular situation. Once you have a good understanding of all aspects of the problem, then it becomes clearer what needs to be done next.
(14)
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-Oh, it's you! I ______you. -I've just had my hair cut, and I'm wearing new glasses.
A．didn't recognize
B．hadn't recognized
C．haven't recognized
D．don't recognize
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Dan: Have you ever participated in a risky sport？ Kay: Yes, I like hang gliding. It's fantastic to be able to fly like a bird. Though landing is sometimes difficult, I've always felt hang gliding is quite safe. Dan: ______ Kay: I've never been seriously injured. Maybe I've just been lucky. Once, my glider turned upside down, and I lost control. I almost crashed, but I parachuted away just in time.
A．What sports are risky？
B．Do you ever get into some difficult situations'？
C．Have you ever hurt yourself in an accident？
D．Have you ever been to a sports centre？
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You've only got a slight cold. You'll____it in a day or two.
A．get at
B．get into
C．get in
D．get over
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It is hard to predict how science is going to turn out, and if it is really good science it is impossible to predict. If the things to be found are actually new, they are by definition unknown in advance. You cannot make choices in this matter. You either have science or you don't, and if you have it you are obliged to accept the surprising and disturbing pieces of information, along with the neat and promptly useful hits,
The only solid piece of scientific truth abut which I feel totally confident is that we are profoundly ignorant about nature. Indeed, I regard this as the major discovery of the past hundred years of biology. It is, in its way, an illuminating piece of news. It would have amazed the brightest minds of the 18th. century Enlightenment to be told by any of us how little we know and how bewildering seems the way ahead. It is this sudden confrontation with the depth and scope of ignorance that represents the most significant contribution of the 20th century science to the human intellect. In earlier times, we either pretended to understand how things worked or ignored the problem, or simply made up stories to fill the gaps. Now that we have begun exploring in earnest, we are getting glimpses of how huge the questions are, and how far from being answered. Because of this, we are depressed. It is not so bad being ignorant if you are totally ignorant; the hard thing is knowing in some detail the reality of ignorance, the worst spots and here and there the not-so-bad spots, but no true light at the end of the tunnel nor even any tunnels that can yet be trusted.
But we are making a beginning, and there ought to be some satisfaction. There are probably no questions we can think up that can' t be answered, sooner or later, including even the matter of consciousness. To be sure, there may well be questions we can't think up and therefore limits to the reach of human intellect, but that is another matter. Within our limits, we should be able to work our way through to all our answers, if we keep at it long enough, and pay attention.
According to the author, really good science ______.
A．would surprise the brightest minds of the 18th century Enlightenment
B．will help people to make the right choice in advance
C．will produce results which cannot be foreseen
D．will bring about disturbing results
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______ you've got a chance, you might as well make full use of it.
A．Now that
B．After
C．In that
D．As soon as
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-- Oh, it's you! I ______ you. --I've just had my hair cut, and I'm wearing new glasses.
A．didn't recognize
B．hadn't recognized
C．haven't recognized
D．don't recognize
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The passage you've just read would most likely be found in a ______.
A．guide-book for tourists
B．book about American history
C．notice
D．short story
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_______ it is you’ve found, you must give it back to the person it belongs to.
A．However
B．That
C．Because
D．Whatever
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I’d like to come with you but that’s not a promise, don’t ________ it.
A．A.count on
B．B.call on
C．C.live on
D．D.wait on
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My country's greatest symbol to the world is the Statue of Liberty(自由女神像), and it was designed by special care. I don't know if you've ever seen the Statue of Liberty, but if you look closely, she's holding not one object, but two. In one hand is the familiar torch we call the "light of liberty."And in the other hand is a book of law.
We're a nation of laws. Our courts are honest and they are independent. The President -- me -- I can't tell the courts how to rule, and neither can any other member of the government. Under our law, everyone stands equal. No one is above the law, and no one is beneath it.
All political power in America is limited and only given by the free vote of the people. We have a Constitution, now two centuries old, which limits and balances the power of the three branches of our government, the judicial(法庭的)branch, the legislative(立法的)branch, and the executive branch, of which I'm a part.
Many of the values that guide our life in America are first shaped in our families, just as they are in your country.American moms and dads love their children and work hard and sacrifice for them, because we believe life can always be better for the next generation. In our families, we find love and learn responsibility and character.
America is a nation guided by faith. Someone once called us "a nation with the soul of a church." This may interest you -- 95 percent of Americans say they believe in God, and I'm one of them.
1、How many objects are held in the hands of the Statue of Liberty？()
A、One
B、Two
C、Three
D、Four
2、According the passage, all people are _____ under the law of the United States.
A、the same
B、different
C、sometimes different
D、sometimes equal
3、The Constitution mentioned in this passage is round _____ years old.
A、100
B、200
C、300
D、400
4、According to the author many of the values of life are first developed _____.
A、in school
B、in the family
C、in work
D、in college
5、From the passage we can easily see that _____.
A、the majority of Americans often go to church
B、the government plays a very important role in a law court
C、light music is popular with old people
D、parents have little influence over their children
