Suppose that in the time it takes for him to bake a cake, Bob can sew 5 pairs of jeans. In the time it takes for Joe to bake a cake, he can sew 8 pairs of jeans day. In this example, Bob has ________

Our country has many chances for adults who want to make their lives better. There are public schools you can attend. In the schools, you can take things 【C1】______ English, arithmetic and history, you can find classes in almost 【C2】______ subjects you want to study. You may want to 【C3】______ to type, sew, paint or fix TV sets. You may want to learn 【C4】______ about the trade you are already in. You may want to get a high school diploma. You may 【C5】______ want to go to college. All it takes is time and effort. In many cities, there are adult classes in 【C6】______ schools. You can attend many of these classes without 【C7】______ to pay money. In some schools you may have to pay a small fee. There are 【C8】______ many kinds of private schools for adults, where you may have to pay more money. Many job chances are 【C9】______ to those who wish to work. It helps if you know 【C10】______ than one language. There are good 【C11】______ for interpreters and typists who know English. There are many good jobs in government. In most cases, you must be a citizen of this country, and you must 【C12】______ a civil service examination. These examinations are 【C13】______ to everyone, regardless of race, religion or color. For many civil service jobs you 【C14】______ a high school diploma. The person who does not have a high school diploma can get 【C15】______ . There are several ways. You can study high school 【C16】______ at home and then take special tests. 【C17】______ you pass the tests, then you get a diploma. Or you can go to a night school. There are classes that 【C18】______ you to take special tests or get a diploma. Be as well trained as you can. Get as much training as you can. 【C19】______ knocks at every door. Be sure that when it knocks at your door, you are 【C20】______ .

【C1】______

A．like

B．in

C．of

D．as

听力原文：M: I don't know, Janet, not matter what I do, I just can't seem to find a job. I've been on interviews, I've called people, I've gone through thousands of these want ads. It's hopeless. I'm just ready to give up.

W: Look, don't give up. No matter how long it takes, just hang in there. Keep at it! Keep going on interviews and you'll be hired sooner or later.

M: Well, it looks like later.

W: John, look here. There's a part-time position for tour leader or tour guide. It sounds like just the kind of job you've been looking for. See, I told you not to give up!

M: Are you pulling my leg? Are you suggesting I be a tour guide? What do I know about that?

W: Listen, I'll read it to you "Part-time tour guide. Explore Tours is looking for a bilingual tour guide for escorting tour groups through Western China. Flexible working schedule. No experience necessary. Call 642-6161." See, no experience necessary. Give it a shot!

M: What did you say that number was again.?

W: 642-6161.

M: I'll call them right now. If I get hired for this job, you'll be enjoying a wonderful evening dinner at La Grand Chow! All on me!

The man's effort to find a position does not include _____.

A．putting up ads on newspapers

B．calling various employers

C．going through interviews

D．reading thousands of want ads

听力原文：M: I don't know, Janet, not matter what I do, I just can't seem to find a job. I've been on interviews, I've called people, I've gone through thousands of these want ads. It's hopeless. I'm just ready to give up.

W: Look, don't give up. No matter how long it takes, just hang in there. Keep at it! Keep going on inter- views and you'll be hired sooner or later.

M: Well, it looks like later.

W: John, look here. There's a part time position for tour leader or tour guide. It sounds like just the kind of job you've been looking for. See, I told you not to give up!

M：Are you pulling my leg? Are you suggesting I be a tour guide? What do I know about that?

W: Listen, I'll read it to you "Part-time tour guide. Explore Tours is looking for a bilingual tour guide for escorting tour groups through Western China. Flexible working schedule. No experience necessary. Call 642-6161. "See, no experience necessary. Give it a shot!

M: What did you say that number was again?

W: 642-6161.

M: I'll call them right now. If I get hired for this job, you'll be enjoying a wonderful evening dinner at La Grand Chow! All on me!

The man's effort to find a position does not include_______.

A．putting up ads on newspapers

B．calling various employers

C．going through interviews

D．reading thousands of want ads

听力原文： The world is not only hungry, but thirsty for water. That may seem strange to you, since nearly 75% of the earth's surface is covered with water. But about 97 % of this huge amount is sea water, or salt water. Man can only drink and use the other 3%-tile fresh water from rivers, lakes, underground, and other sources. And we cannot even use all of that, because some of it is in the form. of icebergs and glaciers. Even worse, some of it has been polluted.

However, this small amount of fresh water is still enough for us. But our need for water is increasing rapidly. Only if we take steps to deal with the problem now can we avoid a severe world-wide water shortage later on.

One of the first steps is to develop ways of reusing it. Today water is used only once and then discharged into a sewer system, and it eventually returns to the sea or runs into underground storage tanks. But it is possible lo pipe used water to a purifying plant. There it can be filleted and treated with chemicals so that it can be used again.

But even if every large city purified and reused its water, we would still not have enough.

All we'd have to do to make use of the sea water in, the world is to remove the salt. If we take these steps we'll be in no danger of drying up!

How much of the earth’s water can man really use?

A．He can use nearly 75% of it.

B．He can use about 97% of it.

C．He can use exactly 3% of it.

D．He can use less than 3% of it.