Question

【題目】根據(jù)短文內(nèi)容，選擇正確答案。
C
Today there are 6 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 food.
One way to produce more food is by growing stronger plants. For thousands of years，farmers have made plants better. Every season, they pick the best plants for the next season. It works very slowly. Since 1983, scientists have been able to change plants more quickly by changing their genetic material (遺傳物質(zhì)). Foods from plants grown in this way are called genetically modified foods (轉(zhuǎn)基因食品), 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 with our diseases: a kind of rice is being prepared, for example, which stops people from 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. Making GM foods is only one way of feeding people in 2050. There are strong feelings against them, because they are unnatural. They may feed people, and then hurt them or their children later. But, both rich and poor countries are very 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 in human diseases.
D.Both A and C
（3）According to the passage, GM foods______.
A.are a quick way to produce food
B.grow in the wild
C.are safe
D.are grown only in rich countries
（4）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 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）B
【解析】本文談?wù)撧D(zhuǎn)基因食品的產(chǎn)生，給人類帶來的巨大好處以及未來的發(fā)展。
（1）細節(jié)理解。根據(jù)第二段Since 1983, scientists have been able to change plants more quickly by changing their genetic material (遺傳物質(zhì)). 可知科學(xué)家通過改變遺傳物質(zhì)來快速的改變植物。故選C。
（2）細節(jié)理解。根據(jù)第三段可知通過改變遺傳物質(zhì)，可以創(chuàng)造抗疾病的植物；也可以幫助人類治愈疾病。故選D。
（3）細節(jié)理解。根據(jù)第四段 they help produce more food可知轉(zhuǎn)基因食品可以增加糧食產(chǎn)量。故選A。
（4）細節(jié)理解。根據(jù)最后一段both rich and poor countries are very interested intheir use, and they are not going to go away.可知富裕的國家和貧窮的國家都對轉(zhuǎn)基因糧食感興趣，他們不會消失，故選B。