2005年6月18日大学英语六级真题

2009-12-16 14:41:31 来源: 网易教育论坛 举报
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Part ⅠListening Comprehension (20 minutes)

Section A:

Directions: In this section, you will hear 10 short conversations. At the end of each conversation, a question will be asked about what was said. Both the conversation and the question will be spoken only once. After each question there will be a pause. During the pause, you must read the four choices marked A), B), C) and D), and decide which is the best answer. Then mark the corresponding letter on the Answer Sheet with a single line through the centre.

Example: You will hear:

You will read:

A) 2 hours.

B) 3 hours.

C) 4 hours.

D) 5 hours.

From the conversation we know that the two are talking about some work they will start at 9 oclock in the morning and have to finish by 2 in the afternoon. Therefore, D) “5 hours” is the correct answer. You should choose [D] on the Answer Sheet and mark it with a single line through the centre.

Sample Answer [A][B][C][D]

1. A) It will reduce government revenues.

B) It will stimulate business activities.

C) It will mainly benefit the wealthy.

D) It will cut the stockholders’ dividends.

2. A) She will do her best if the job is worth doing.

B) She prefers a life of continued exploration.

C) She will stick to the job if the pay is good.

D) She doesn’t think much of job-hopping.

3. A) Stop thinking about the matter.

B) Talk the drug user out of the habit.

C) Be more friendly to his schoolmate.

D) Keep his distance from drug addicts.

4. A) The son.                  B) The father.

C) The mother.               D) Aunt Louise.

5. A) Stay away for a couple of weeks.

B) Check the locks every two weeks.

C) Look after the Johnsons’ house.

D) Move to another place.

6. A) He would like to warm up for the game.

B) He didn’t want to be held up in traffic.

C) He didn’t want to miss the game.

D) He wanted to catch as many game birds as possible.

7. A) It was burned down.       B) It was robbed.

C) It was blown up.          D) It was closed down.

8. A) She isn’t going to change her major.

B) She plans to major in tax law.

C) She studies in the same school as her brother.

D) She isn’t going to work in her brother’s firm.

9. A) The man should phone the hotel for directions.

B) The man can ask the department store for help.

C) She doesn’t have the hotel’s phone number.

D) The hotel is just around the corner.

10. A) she doesn’t expect to finish all her work in thirty minutes.

B) She has to do a lot of things within a short time.

C) She has been overworking for a long time.

D) She doesn’t know why there are so many things to do.

Section B Compound Dictation

注意: 听力理解的B节(Section B)为复合式听写(Compound Dictation),题目在试卷二上,现在请取出试卷二。

Part Ⅱ  Reading Comprehension

Directions: There are 4 passages in this part. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A),B),C),and D). You should decide on the best choice and mark the corresponding letter on the Answer Sheet with a single line through the center.

Passage One

Questions 11 to 15 are based on the following passage.

Low-level slash-and-burn farming doesn’t harm rainforest. On the contrary, it helps farmers and improves forest soils. This is the unorthodox view of a German soil scientist who has shown that burnt clearings in the Amazon, dating back more than 1,000 years, helped create patches of rich, fertile soil that farmers still benefit from today.

Most rainforest soils are thin and poor because they lack minerals and because the heat and heavy rainfall destroy most organic matter in the soils within four years of it reaching the forest floor. This means topsoil contains few of the ingredients needed for long-term successful farming.

But Bruno Glaser, a soil scientist of the University of Bayreuth, has studied unexpected patches of fertile soils in the central Amazon. These soils contain lots of organic matter.

Glaser has shown that most of this fertile organic matter comes from “black carbon”-the organic particles from camp fires and charred (烧成炭的) wood left over from thousands of years of slash-and-burn farming. ”The soils, known as Terra Preta, contained up to 70times more black carbon than the surrounding soil, ”says Glaser.

Unburnt vegetation rots quickly, but black carbon persists in the soil for many centuries. Radiocarbon dating shows that the charred wood in Terra Preta soils is typically more than 1,000 years old.

“Slash-and-burn farming can be good for soils provided it doesn’t completely burn all the vegetation, and leaves behind charred wood,” says Glaser. “It can be better than manure (粪肥).” Burning the forest just once can leave behind enough black carbon to keep the soil fertile for thousands of years. And rainforests easily regrow after small-scale clearing. Contrary to the conventional view that human activities damage the environment, Glaser says: ”Black carbon combined with human wastes is responsible for the richness of Terra Preta soils.”

Terra Preta soils turn up in large patches all over the Amazon, where they are highly prized by farmers. All the patches fall within 500 square kilometers in the central Amazon. Glaser says the widespread presence of pottery (陶器) confirms the soil’s human origins.

The findings add weight to the theory that large areas of the Amazon have recovered so well from past periods of agricultural use that the regrowth has been mistaken by generations of biologists for “virgin” forest.

During the past decade, researchers have discovered hundreds of large earth works deep in the jungle. They are up to 20 meters high and cover up to a square kilometer. Glaser claims that these earth works, built between AD 400 and 1400, were at the heart of urban civilizations. Now it seems the richness of the Terra Preta soils may explain how such civilizations managed to feed themselves.

11. We learn from the passage that the traditional view of slash-and-burn farming is that        .

A) it does no harm to the topsoil of the rainforest

B) it destroys rainforest soils

C) it helps improve rainforest soils

D) it diminishes the organic matter in rainforest soils

12. Most rainforest soils are thin and poor because       .

A) the composition of the topsoil is rather unstable

B) black carbon is washed away by heavy rains

C) organic matter is quickly lost due to heat and rain

D) long-term farming has exhausted the ingredients essential to plant growth

13. Glaser made his discovery by        .

A) studying patches of fertile soils in the central Amazon

B) examining pottery left over by ancient civilizations

C) test-burning patches of trees in the central Amazon

D) radiocarbon-dating ingredients contained in forest soils

14. What does Glaser say about the regrowth of rainforests?

A) They take centuries to regrow after being burnt.

B) They cannot recover unless the vegetation is burnt completely.

C) Their regrowth will be hampered by human habitation.

D) They can recover easily after slash-and-burn farming.

15. From the passage it can be inferred that .

A) human activities will do grave damage to rainforests

B) Amazon rainforest soils used to be the richest in the world

C) farming is responsible for the destruction of the Amazon rainforests

D) there once existed an urban civilization in the Amazon rainforests

尤淘 本文来源:网易教育论坛 责任编辑:王晓易_NE0011
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