Question

【題目】Today there are 6.4 billion people on the earth. By the year 2050, there may be 12.5 billion. There are a lot of people to feed. We need more and more food.

One way to produce more food is growing stronger plants. For thousands of years, farmers have made plants better. Every season, they pick the best plants for the next season. But it works very slowly. Since 1983, scientists have been able to change plants more quickly by changing their genetic(遺傳的) material. Foods from plants grown in this way are called genetically modified(改變的) foods, or GM foods.

By changing the genetic material of a plant, it is possible to make new plants. They make plants which are strong against plant diseases. They can also help prevent human diseases; a kind of rice is being prepared, for example, which stops people becoming blind.

Rich countries produce GM foods because they are easy to grow and bring in more money. Poor countries are interested in them because they help produce more food.

GM plants are not natural. No one knows how good or bad they are. There are strong feelings against them, because they are unnatural. They may feed people, then hurt them or their children later. But both rich and poor countries are interested in their use, and they are not going to go away. In 2050, we may think differently about them.

【1】GM foods are made by________．

A. farmers B. workers

C. scientists D. plants

【2】What are the good things about GM foods?

A. They make plants strong against diseases.

B. They are unnatural.

C. They can help prevent human diseases.

D. Both A and C.

【3】GM foods________．

A. are a quick way to produce food

B. are grown in the wild

C. ．a(chǎn)re safe

D. are grown only in rich countries

【4】Why do some people not like GM foods?

A. They are not useful. B. They are not helpful.

C. They are not natural. D. They are not cheap.

【5】From the passage we know that ________．

A. GM foods will disappear one day in the future

B. GM foods will not disappear in the future

C. people will not be interested in GM foods

D. people will have to stop using GM foods

Answer 1

【答案】

【1】 C

【2】 D

【3】 A

【4】 C

【5】 B

【解析】

試題這篇短文主要講述轉(zhuǎn)基因問(wèn)題。文章指出，轉(zhuǎn)基因可以使植物增強(qiáng)抗病能力，也可以對(duì)人類疾病有幫助。同時(shí)指出，轉(zhuǎn)基因植物非自然生長(zhǎng)，其好壞尚不可知。

【1】細(xì)節(jié)理解題。根據(jù)Since 1983, scientists have been able to change plants more quickly by changing their genetic（遺傳的） material可知是由科學(xué)家制造出來(lái)的，選C。

【2】細(xì)節(jié)理解題。此題講的是這些遺傳基因改變的食物的優(yōu)點(diǎn)。根據(jù)短文They make plants which are strong against plant diseases. They can also help in our diseases的描述可知，選項(xiàng) A和C都是其中的一個(gè)方面，故選D。

【3】細(xì)節(jié)理解題。根據(jù)短文because they help produce more food的描述可知，它們能夠幫助產(chǎn)生更多的食物，故是一種快速生產(chǎn)食物的途徑，故選A。

【4】細(xì)節(jié)理解題。本題問(wèn)的是人們不喜歡的原因，根據(jù)短文There are strong feelings against them, because they are unnatural的描述可知，人們強(qiáng)烈反對(duì)是因?yàn)樗鼈儾皇亲匀坏�，故選C。

【5】細(xì)節(jié)理解題。根據(jù)文章倒數(shù)第二句But both rich and poor countries are interested in their use, and they are not going to go away的描述，可知它們不會(huì)消失（go away），相當(dāng)于disapper,故選B。