题目内容

【题目】My grandfather ________ live in the countryside, but now he ________ living in the city.

A.used to; used toB.was used to; gets used to

C.used to; is used toD.was used to; used to

【答案】C

【解析】

句意:我祖父过去住在农村,但现在他习惯于住在城市。

考查used短语辨析。短语used to do sth.表示“过去常常做某事”;be /get used to doing sth.表示“习惯做某事”;第一空是过去住在乡下,用used to do的形式;排除BD;第二空表示习惯做某事,用be used to doing,排除A。根据题意,故选C

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【题目】根据短文内容,选择正确答案。
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 (遗传物质). Foods from plants grown in this way are called genetically modified foods (转基因食品), 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

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