2017全國英語等級考試三級試題閲讀A訓練

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　Section IIReading

( 50 minutes)

　Part A

Directions:

Read the following two texts. Answer the questions on each text by choosing A, B, C or D. Mark

your answers on ANSWER SHEET 1.

　Text 1

Flying over a desert area in an airplane, two scientists looked down with trained eyes at treesand bushes. After an hour' s flight, one of the scientists wrote in his book, "Look here for probable metal. " Scientists in another airplane, flying over a mountain area, sent a message to other scientists on the ground, "Gold possible. " Walking across hilly ground, four scientists reported,"This ground should be searched for metal. " From an airplane over a hilly wasteland a scientistsent back by radio one word: "Uranium. "

None of the scientists had X-ray eyes: they had no magic power of looking down below theearth' s surface. They were merely putting to use one of the newest methods of locating minerals inthe ground... trees and plants as signs that certain minerals may lie beneath the ground on whichthe trees and plants are growing.

This newest method of searching for minerals is based on the fact that minerals deep in theearth may affect the kind of bushes and trees that grow in the surface.

At Watson Bar Greek, a brook(小溪) six thousand feet high in the mountains of British Columbia, Canada, a mineral search group gathered bags of tree seeds. Boxes were filled with smallbranches from the trees. Roots were dug and put into boxes. Each bag and box was carefullymarked. In a scientific laboratory, the parts of the forest trees were burned to ashes and small part was examined to learn whether there were minerals in it.

Study of the roots, branches, and seeds showed no silver. But there were small amounts ofgold in the roots and a little less gold in the branches and seeds. The seeds growing nearest to thetree trunks had more gold than those growing on the ends of the branches.

26. Scientists were flying over a desert or a hilly wasteland or .a mountain area in order tosearch forin the ground.

A. gold

B. silver

C. uraniumD. minerals

27. The study of trees, branches and roots shows that

A. there were larger amounts of gold in the branches than in the seeds

B. there were smaller amounts of gold in the roots than in the branches

C. there were less amounts of gold in the seeds growing on the ends of branches than seeds growing nearest to the tree trunks

D. there was more gold in the branches than in the roots

28. Which is the best title suggested below?

A. Scientists Searching for Metals with Special Power

B. New Methods of Searching for Minerals

C. Gold Could Be Found by Trees and Plants

D. A New Method of Searching for Minerals--Using Trees and Plants

29. Which of the following is NOT mentioned as part of a tree that can help find minerals?

A. Leaves.

B. Roots.

C. Branches.

D. Seeds.

30. The scientists were searching for minerals by using

A. X-ray

B. magic power

C. a special instrument

D. trained eyes

　　Text 2

The most frightening words in the English language are, "Our computer is down. " You hear it more and more when you are on business. The other day I was at the airport waiting for a ticket to Washington and the girl in the ticket office said, "I' m sorry, I can' t sell you a ticket. Our computer is down. "

"If your computer is down, just write me out a ticket. "

"I can' t write you out a ticket. The computer is the only one allowed to do so. "

I looked down on the computer and every passenger just standing there drinking coffee and staring at the black screen. Then I asked her, "What do all you people do?"

"We give the computer the information about your trip, and then it tells us whether you can fly with us or not. "

"So when it goes down, you go down with it. "

"That' s good, sir. "

"How long will the computer be down?" I wanted to know.

"I have no idea. Sometimes it' s down for 10 minutes, sometimes for two hours. There' s no way we can find out without asking the computer, and since it' s down it won' t answer us. "

After the girl told me they had no backup computer, I said. "Let' s forget the computer. What about your planes? They' re still flying, aren't they?"

"I couldn't tell without asking the computer. "

"Maybe I could just go to the gate and ask the pilot if he' s flying to Washington," I suggested.

"I wouldn't know what gate to send you to. Even if the pilot was going to Washington, he couldn't take you if you didn't have a ticket. "

"Is there any other airline flying to Washington within the next few hours?"

"I wouldn't know," she said, pointing at the dark screen. "Only ' IT' knows. It can' t tell me. "

By this time there were quite a few people standing in lines. The word soon spread to other travelers that the computer was down. Some people went white; some people started to cry and still others kicked their luggage.

31. The best title for the article is

A. When the Computer Is Down

B. The Most Frightening Words

C. The Computer of the Airport

D. Asking the Computer

32. What could the girl in the ticket office do for the passengers without asking the computer?

A. She could sell a ticket.

B. She could write out a ticket.

C. She could answer the passengers' questions.

D. She could do nothing.

33. why do you think they had not a backup computer?

A. Because it was easy down.

B. Because it was very expensive.

C. Because it was not advanced enough.

D. Because it was not as big as the main computer.

34. The last paragraph suggests that

A. a modern computer won' t be down

B. computers can take the place of humans

C. sometimes a computer may bring suffering to people

D. there will be great changes in computers

35. What did passengers do when the computer was down?

A. They left home and went home.

B. They drank coffee and stared at the black screen.

C. They began to talk to each other.

D. None above.