英语四级考试模拟试卷答案

时间:2008-04-28 11:47:23 来源:新东方 作者:
 

king of buying a home, aren’t we?  Just a trip to look at the place won’t cost us much.
Q: What can be inferred from the conversation?


Section B

W: You know, John, I’m getting quite worried about Maria.
M: Why? What happened, honey?
W: Well, I was speaking to her teacher, Mary, today after school. She told me that Maria rarely finishes her homework and when she does…well…the standard is often pretty poor.
M: Maybe I’d better have a word with her then.
W: Yeah, I think so. I wouldn’t like this little girl to be spoiled, you know.
M: It’s not my fault.
W: I didn’t mean that.
M: No, you didn’t.

Questions 11 to 15 are based on the longer conversation you have just heard.

11. Who is the man’s wife?
12. Who had a conversation today?
13. What were they mainly talking about?
14. What is the woman complaining about at last?
15. Who does the woman think is to blame?

Section C
Passage One

You can tell the age of a tree by counting its rings. But these records of a trees’ life really say a lot more.
Scientists are using tree rings to learn what’s been happening on the sun’s surface for the last ten thousand years. Each ring represents a year of growth. As the tree grows, it adds a layer to its trunk taking up chemical elements from the air. By looking at the elements in the rings from the given year, scientists can tell what elements were in the air that year.
Dr. Stevenson is analyzing one element - carbon-14 in rings from both living and dead trees. Some of the rings go back almost ten thousand years to the end of the Ice Age. When Stevenson followed the carbon-14 trail back in time, he found carbon-14 levels change with the intensity of solar burning. You see, the sun has cycles. Sometimes it burns fiercely, at other times, it’s relatively calm. During the sun’s violent periods, it throws off charged particles in fast moving strings called solar winds. The particles interfere with the formation of carbon-14 on earth. When there’s more solar wind activity, less carbon-14 is produced. Ten thousand years of tree rings show that the carbon-14 level rises and falls about every 420 years.
The scientists concluded that solar wind activity must follow the same cycle.

Questions 16 to 18 are based on the passage you have just heard.

16. What is the purpose of the scientists in studying tree rings?
17. What affects the amount of carbon-14 on earth?
18. What do we learn from the passage about solar wind activity?


Passage Two

Do you remember a time when people were a little nicer and gentler with each other? I certainly do. And I feel that much of the world has somehow gotten away from that. Too often I see people rushing into elevators without giving those inside the chance to get off first, or never saying thank you when others hold the door open for them. We get lazy, and in our laziness, we think that something like a simple thank-you doesn’t really matter. But it can m

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