Key to Model Test One
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Part I Writing

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һƪҵġ˵ҵ൱Ҫָҵķ

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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 they 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 irrigateprovide water forfarmland. As a result, the sea has shrunk to half its original size, stranding ships on dry land.ԭ˼ͬ

2.NݸþΪ:ްӺ͹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͹ȹ̡ɴ˿֪ںôԸԭ֮岻ϡ

3.YݸþΪ:ȱˮҪԭ˿ˮȾݿɶλĵĶξ仰 Growing populations will worsen problems with water ʮһξ仰But almost everyone contributes to water pollution. ߶ˮԴȱԭԭ֮

4.YݸþΪ:ٵйˮΪˮļٺȾΪ߶εڶ仰͵ڰ˶ε仰仰һΪٵˮԴ⣬ԭ֮

5.NݸþΪ:ƪ£ˮȾڼͥΪʮһκһ仰70 percent of the pollutants could be traced to household waste ٷ֮ʮȾԴڼͥݴˣ֮ԭ֮岻ϡ

6.NݸþΪ:˽ȱˮ⡣Ϊµ߶εڶ仰 But Americans could face serious water shortages, too, especially in areas that rely on groundwater, Ȼ֮ԭ֮岻ϡ

7.NGݸþΪ:ˮרGleick ṩˮصĽݱĵʮξ仰רGleick δṩκν

8.onethird 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Twothirds 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˵ʿװһֱȴŵġԴ̬ȿжϣҪȥװ

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?

AݴʿĻһԼûκпɿ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?
A Ůʿ˵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 ŮʿʿΪʲô˷ɻʿش˵ţ˵ʿԸ

18.  
W: Ive been thinking about my cousin a lot today.
M: Why not go over for a visit?
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. ĶԻչۣɼԻ۵Ļǹͷ޸