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0912ӢļȫԤһ(Ķ)

20091215Դ233У ҵ¼
Key to Model Test One
Part I Writing
д˼·
һƪҵġҪ˵ҵ൱Ҫָҵķ
οġ
Choosing an Occupation
One of the most important problems a young person faces is deciding what to do. There are some people, of course, who from the time are six years old know that they want to be doctors or pilots or fire fighters, but the majority of us do not get around to making a decision about an occupation or career until somebody or something forces us to face the problem
Choosing an occupation takes time, and there are a lot of things you have to think about as you try to decide what you would like to do. You may find that you will have to take special courses to qualify for a particular kind of work, or you may find out that you will need to get actual work experience to gain enough knowledge to qualify for a particular job
Fortunately, there are a lot of people you can turn to for advice and help in making your decision. At most schools, there are teachers who are professionally qualified to give you detailed information about job qualifications. And you can talk over your ideas with family members and friends who are always ready to listen and to offer suggestions
Part II Reading Comprehension (Skimming and Scanning)
1.Yݸþ˼Ǿ޴ĺĵˮʹ̺Сӵڶεм仰ɵóۡThirty years ago, government planners diverted the rivers that flow into the sea in order to irrigate(provide water for)farmland. As a result, the sea has shrunk to half its original size, stranding ships on dry landԭ˼ͬ
2.NݸþΪްӺ͹ȹ̵ĽôڻΪĵεڶ仰But many countries continue to build massive dams and irrigation systems, even though such projects can create more problems than they fix. (Ȼ⣬ԼްӺ͹ȹ̡)ɴ˿֪ںôԸԭ֮ⲻϡ
3.YݸþΪȱˮҪԭ˿ˮȾݿɶλĵĶξ仰 Growing populations will worsen problems with water... ʮһξ仰But almost everyone contributes to water pollution. ߶ˮԴȱԭԭ֮
4.YݸþΪٵйˮΪˮļٺȾΪ߶εڶ仰͵ڰ˶ε仰仰һΪٵˮԴ⣬ԭ֮
5.NݸþΪƪ£ˮȾڼͥΪʮһκһ仰...70 percent of the pollutants could be traced to household waste (ٷ֮ʮȾԴڼͥ)ݴˣ֮ԭ֮ⲻϡ
6.NݸþΪ˽ȱˮ⡣Ϊµ߶εڶ仰 But Americans could face serious water shortages, too, especially in areas that rely on groundwater, Ȼ֮ԭ֮ⲻϡ
7.NGݸþΪˮרGleick ṩˮصĽݱĵʮξ仰רGleick δṩκν
8.one-third ΪĶκһ仰He fears that by the year 2025, as many as onethird of the worlds projected 8.3 billion people will suffer from water shortages
9.glaciers and ice caps Ϊεڶ仰Two-thirds of this freshwater is locked in glaciers and ice caps
10.water pollution Ϊʮεڶ仰Toxic chemicals pollute water when released untreated into rivers and lakes
Part III Listening Comprehension
Section A
11.W I just saw an ad on television that said mens suits were on sales today and tomorrow at Conrads Mens Wear
MGreat! Thats just what Ive been waiting for
QWhat will the man probably do?
Dʿ˵ʿװؼһֱȴŵġԴ̬ȿжϣҪȥװ
12.W:Is John really ill?
M:Its hard to say. I doubt theres anything wrong with him physically
Q: What does the man mean?
AݴʿĻһԼûκ⡣пɿ𰸡
13.M:Do you know if the book shop is still open?
W:Yes, its open till six
Q:When do you think this conversation took place?
AŮʿ˵ڻţһֱأ˵ڵʱ֮ǰ
14.M:Of the two houses we saw today, which do you prefer?
W:I think the white one is prettier, but the brick one has a bigger yard, so I like it better
Q:Why does the woman like the brick house better than the white house?
CŮʿȷָ the brick one has a bigger yard, so I like it better
15. M:Honey, well have a guest from Australia, a friend of mine. Hell stay in California for two weeks
W:Yes. Your friend Andy. He was your classmate at London University, wasnt he?
Q:What is the probable relationship between the two speakers?
CʿŮʿΪ honey, ֤˹ϵܣɴ˿ж˹ϵΪޡ
16.M: When will the meeting begin?
W:According to the schedule it should be at 9:30. It will last for an hour and a half
Q:When will the meeting be closed?
BݸŮʿ˵Ļʱ̱930ʼһСʱô1100
17. W:If I were you, I would take a plane instead of a bus. It will take you forever to go there
M:But flying makes me so nervous
Q: What does the man prefer to do?
C Ůʿʿ˷ɻʿش˵ţ˵ʿԸ
18. W:Ive been thinking about my cousin a lot today
M:Why not go over for a visit?Ô´
Q:What does the man mean?
Aʿ˵ Why not go over for a visit ڽŮʿȥ֡
Now youll hear two long conversations
Conversation One
W:OK, last night you were supposed to read an article about human bones. Are there any comments about it?
M:Well, to begin with, I was surprised to find out there was so much going on in bones. I always assumed they were pretty lifeless
W:Well, thats an assumption many people make. But the fact is bones are made of dynamic living tissue that requires continuous maintenance and repair
M:Right. Thats one of the things I found so fascinating about the article the way the bones repair themselves
W:OK. So can you tell us how the bones repair themselves?
M:Sure. See, there are two groups of different types of specialized cells in the bone that work together to do it. The first group goes to an area of the bone that needs repair. This group of cells produces the chemical that actually breaks down the bone tissue, and leaves a hole in it. After that the second group of specialized cells comes and produces the new tissue that fills in the hole that was made by the first group
W:Very good. This is a very complex process. In fact, the scientists who study human bones dont completely understand it yet. They are still trying to find out how it all actually works. Specifically, because sometimes after the first group of cells leaves a hole in the bone tissue, for some reason, the second group doesnt completely fill in the hole. And this can cause real problems. It can actually lead to a disease in which the bone becomes weak and is easily broken
M:OK, I get it. So if the scientists can figure out what makes the specialized cells work, maybe they can find a way to make sure the second group of cells completely fills the hole in the bone tissue every time. Thatll prevent the disease from ever occurring
Questions 19 to 22 are based on the conversation you have just heard
19.What is the discussion mainly about?
CݶԻһʼ̸⣬Ůʿ˵ But the fact is bones are made of dynamic living tissue that requires continuous maintenance and repair. ĶԻչۣɼԻ۵Ļǹ޸
20.What is the function of the first group of specialized cells discussed in the talk?
Cʿϸãϸһֻѧʷֽ֯(This group of cells produces the chemical that actually breaks down the bone tissue..)ɴ˿ɼThey break down bone tissue
21.What does the professor say about scientists who study the specialized cells in human bones?
BŮʿ˵ϸĹ൱ӣʵϣоĿѧҶȫ˽̡һп֪In fact, the scientists who study human bones dont completely understand it yet. Դ𰸼ЩѧҲȫ֪Щϸι
22.According to the student, which is one important purpose of studying specialized cells in human bones?
AѧϰЩеϸҪĿΪѧϰԤͷʿһ仰пɿThatll prevent the disease from ever occurring. ڼ֮ǰԤɼAݷ⡣
Conversation Two
M: Hi Diana, mind if I sit down?
W: Not at all, Jerry. How have you been?
M:Good. But Im surprised to see you on the city bus. Your car in the shop?
W:No. Ive just been thinking a lot about the environment lately. So I decided the air will be a lot cleaner if we all use public transportation when we could
M:Im sure you are right. The diesel bus isnt exactly pollution free
W:True. Theyll be running a lot cleaner soon. We were just talking about that in my environmental engineering class
M:What could the city do? Install pollution filters in all their buses?
W:They could, but those filters make the engines work harder and really cut down on the fuel efficiency. Instead they found a way to make their engines more efficient
M: How?
W:Well, there is a material thats a really good insulator. And a thin coat of it gets sprayed on the certain part of the engine
M: An insulator?
W:Yeah. What it does is reflect back the heat of burning fuel. So the fuel will burn much hotter and burn up more completely
M:So a lot less unburned fuel comes out to pollute the air
W:And the bus will need less fuel. So with the saving on fuel cost, they say this will all pay for itself in just six months
M:Sounds like people should all go out and get some this stuff to spray their car engines
W:Well, its not really that easy. You see, normally, the materials are fine powder. To melt it so you can spray a coat of it on the engine parts, you first have to heat it over 10,000 degrees and then, well, you get the idea. Its not something you or I will be able to do ourselves
Questions 23 to 25 are based on the conversation you have just heard
23.What is the conversation mainly about?ɼɢ
CŮʿ˵Ϊ˻Ӧöͨ豸֮ĻΧνܱչζԻҪ۵ǹĽ⣬ùȼϸЧãˣCݷ⡣
24.Why did the woman decide to ride the city bus?
BݶԻͷ־ͽ˴𰸣λŮʿ˵ԼijΪ˽ͻȾᵽSo I decided the air will be a lot cleaner if we all use public transportation when we could ɵ֪
25.What is the new material?
DµIJ沿λһ־ԵϡŮʿĻthere is a material thats a really good insulator. And a thin coat of it gets sprayed on the certain part of the engineɵóֲϵ;ǽȼȼյȥӶﵽЧʵĽ
Section B
Passage One
A guide dog is a dog especially trained to guide a blind person. Dogs chosen for such training must show good intelligence, physical fitness, and responsibility
At the age of about fourteen months, a guide dog begins an intensive course that lasts from three to five months. It becomes accustomed to the leather harness and stiff leather handle it will wear when guiding its blind owner. The dog learns to watch traffic and to cross streets safely. It also learns to obey any command that might lead its owner into danger
The most important part of the training course is a four-week program in which the guide dog and its future owner learn to work together. However, many blind people are unsuited by personality to work dogs. Only about a tenth of the blind find a guide dog useful
Questions 26 to 28 are based on the passage you have just heard
26. How long does the intensive course last?
Aȷᵽan intensive course that lasts from three to five monthsȷΪ Aݡ
27.Which of the following is not a necessary skill guide dogs have to learn?
DݴThe dog learns to watch traffic and to cross streets safely. It also learns to obey any command that might lead its owner into danger. пɿҲڵäȮѵΧڵļܡ
28.How long does the most important training course last?
CҪѵγ̳ܡȷָ˱𰸡The most important part of the training course is a four-week programӴ˾мɿ
Passage Two
People dream four to six times a night. They dream while they are in the REM stage of sleep, which means rapid eye movement stage in ones sleep. Sleepers go into the REM stage about every 90 minutes. The first dream of the night may last about ten minutes. Each dream gets a little longer. The last dream of the night may be an hour long
People need their dreams. Younger children spend more time dreaming. Babies spend almost half of their sleep in the REM stage
One experiment showed that everyone needs to dream. Doctors gave some people sleeping pills. These sleeping pills didnt let them go to REM sleep. After a few nights without dreams, they began to feel bad. They became angry easily, they worried a lot, and they wanted to fight with everyone. Then they stopped taking the sleeping pills. They all began to dream all night for a few nights to catch up
Why do people dream? Dreams give them time to find the answers to some of their problems. If they think they will have difficult problems the next day, they may spend more time on REM sleep the night before. In their dreams, they may find an answer to their problems
Questions 29 to 31 are based on the passage you have just heard
29.How often does a person dream each night?
BһʼһһҪĵΡӾͿɿPeople dreams four to six times a nightˣΪBݡ
30.What is true according to this passage?
DݰҩֹǽREM˯״̬These sleeping pills didnt let them go to REM sleepɿ Dȷ
31.Why do people dream?
Dȷ˴Dreams give them time to find the answers to some of their problemsΪ˿ҵԼĴ𰸡
Passage Three
O.K., everybody. Can we start the meeting now? Im Jeff Milton, the chairperson of the Graduation Committee for this year. Youve all been selected as representatives to plan the graduation ceremonies. Im sending around the sheet of paper for you to fill in your name and telephone number. Also, please write down what part of the ceremonies you would like to work on. Remember, as a representative, you will have a lot of responsibilities. So only sign up if you feel you have the time to participate. When everyone has finished writing down the information, please return the paper to me. At our next meeting one week from today, well start to discuss the details of the ceremonies
Questions 32 to 35 are based on the passage you have just heard
32.Who is the speaker?
Cݴ¿ͷ˵ߵҽܾͿ֪ίԱϯ
33.What is the purpose of the meeting?
DĴDZѡƻҵ¡
34.What should the students write on the paper?
AѧӦڱд绰Լ
35.When is the next meeting?Ô´
Bݴ仰At our next meeting one week from today֪´λٿ

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