2018年广东省学位英语真题及答案详解（16-25题）

Part II Reading Comprehension (40ponts)

Directions: there are four passages in this part. Each passage is followed by five questions or unfinished statements. For each of them there are four choices marked A,B,C and D, choose the best and mark your answer on the ANSEWR SHEET.

Passage One

Have you ever heard of a pawpaw(木瓜)? If not, do not feel bad. Many Americans do not know of the fruit, although it is native to the U.S..Once, however, it was one of the most popular fruits in North America. Happily, those who love the pawpaw are trying to return it to its former position in American foods.

A pawpaw is a tropical fruit that used to be grown along the East Coast from New York to Florida and all over the eastern U.S..At one time, it could be found as far west as Nebraska.

The pawpaw was an important food for Native Americans and even early European settlers. Pawpaws reportedly were a favorite treat of George Washington, the first U.S. president, who especially liked them cold. Thomas Jefferson, the third U.S. president, was also s fan of the fruit. He planted papaws at his home in Virginia. He also sent pawpaw seeds to his friends in France, American explorers Lewis and Clark wrote in their journals about the pawpaw.

The pawpaw is difficult to be sold commercially. The fruit requires a very special environment---low, wet areas that sometimes flood. It has a very short harvest season, from two to three weeks in September and October. In addition, the fruit is good to eat for only two to three days after harvesting. This makes it hard to sell anywhere distant from the pawpaw tree it comes from.

Planters are again growing pawpaw trees and harvesting the fruit. In several states farmers have organized “pawpaw festivals” to reintroduce people to food. At such a festival in Maryland recently, farmers displayed different products made with pawpaws, like pawpaw jams, pies, ice-cream and beer.

16. Many American people do not know that the pawpaw _____

A. Was once popular in the U.S.

B. Is native to the U.S. only

C. Has become popular again

D. Is a healthy fruit

【答案】B

【解析】根据文章“Many Americans do not know of the fruit, although it is native to the U.S..”可以得出答案。

17. The pawpaw used to be found mainly _____

A. Around Nebraska

B. In the eastern U.S.

C. All over Florida

D. In New York suburbs

【答案】B

【解析】根据文章“A pawpaw is a tropical fruit that used to be grown along the East Coast from New York to Florida and all over the eastern U.S.”可以得出答案。

18. George Washington and Thomas Jefferson are mentioned in paragraph 3 as _____

A. American explorers

B. Famous politicians

C. Early pawpaw planters

D. Pawpaw lovers

【答案】D

【解析】根据文章“Pawpaws reportedly were a favorite treat of George Washington, the first U.S. president, who especially liked them cold. Thomas Jefferson, the third U.S. president, was also s fan of the fruit.”可以得到答案。

19. It is difficult to sell the pawpaw on a large scale for the following reasons EXCPEPT that the fruit _____

A. Requires a very special environment

B. Has a very short harvest season

C. Does not taste good

D. Is difficult to preserve after harvesting

【答案】C

【解析】根据文章“The fruit requires a very special environment---low, wet areas that sometimes flood. It has a very short harvest season, from two to three weeks in September and October. In addition, the fruit is good to eat for only two to three days after harvesting. This makes it hard to sell anywhere distant from the pawpaw tree it comes from.”可以得到答案。

20. Pawpaw festivals are organized in some states _____

A. As a way of celebrating harvest

B. As part of the traditional culture

C. To display pawpaw growing techniques

D. To reintroduce people to the fruit

【答案】D

【解析】根据文章“In several states farmers have organized “pawpaw festivals” to reintroduce people to food.”可以得到答案。

Passage Two

Throughout history, humans have suffered from a condition that they have never been able to escape—ageing. Some researchers, however, believe we may be thinking about it in the wrong way. They say we should start treating ageing itself as a disease—one that can be prevented and treated.

Their hopes are founded on recent discoveries that suggest biological ageing may be entirely preventable and treatable. From a biological preventive, the body ages at different rates according to genetic and environmental factors. Tiny errors build up in our DNA and our cells begin developing faults that can grow into tissue damage, which leads to ageing and ageing—related diseases.

One of the leading figures in human life research, Aubrey De Grey, explains in an interview that their goal is to develop a set of therapies for middle-aged and older people that will leave them physically and mentally equivalent(相当的) to someone under the age of 30. “Of course, without wiping their memories,” he adds. But he doesn’t think that is will be possible to stop ageing altogether. He sees a future where “rejuvenation technologies” can be applied to old people in order to revert their cells to what they were like when they were in their youth, buying them extra time. The idea is that someone who is treated at the age of 60 will be biologically reverted to 30. But because the therapies are not permanent fixes. Their cells will end up becoming 60 years old again in another 30 years time.

21. By “treating ageing itself as a disease”, some researchers mean _____

A. Aged people are liable to diseases

B. Ageing can be dealt with like a disease

C. Ageing is a disease hard to cure

D. Ageing should be treated carefully

【答案】B

【解析】根据文章“They say we should start treating ageing itself as a disease—one that can be prevented and treated.”可以得出答案。

22. Humans age at different rates due to _____ reasons.

A. Physical

B. Biological

C. Genetic and environmental

D. DNA and cell-related

【答案】C

【解析】根据文章“From a biological preventive, the body ages at different rates according to genetic and environmental factors.”可以得出答案。

23. The goal of De Grey’s research is to _____.

A. Freeze people’s age

B. Make people younger

C. Stop ageing altogether

D. Adjust people’s memories

【答案】B

【解析】根据文章“One of the leading figures in human life research, Aubrey De Grey, explains in an interview that their goal is to develop a set of therapies for middle-aged and older people that will leave them physically and mentally equivalent to someone under the age of 30.”可以得出答案。

24. What does “rejuvenation” (para.3) possibly mean?

A. Relating to cells

B. Relating to genes.

C. Becoming healthy.

D. Becoming young.

【答案】D

【解析】rejuvenation一词的意思为“返老还童”.

25. What will happen if someone is treated with De Grey’s technology?

A. He will stay young for a longer time

B. He will no longer grow old.

C. He will live up to at least 60 years old.

D. He will not get ageing-related diseases.

【答案】A

【解析】根据文章“Their cells will end up becoming 60 years old again in another 30 years time.”可以得出答案。