题目内容
B. in
C. with
D. for
Today there are 6 billion people on the earth. By the year 2050 there may be 12.5 billion. There will be 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 in 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, 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.
【小题1】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 |
| A.They are not useful. |
| B.They are not helpful. |
| C.They are not natural. |
| D.They are not cheap. |
| 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 |
读短文选择最佳答案
Two farmers were on their way home one evening after a hard day's work. Both were tired. They happened to look up at the sky and saw a black cloud overhead.
"Ah!" said one farmer, "tomorrow we shall have rain and the rice will grow well." The second answered, "Nonsense (胡说), the rain will only kill the crops (庄稼)."
So they began to quarrel (争吵). Just then a third farmer came along and asked them why they were quarreling. Both farmers explained about the black cloud.
"What cloud?" asked the third farmer. They all looked at the sky. The cloud was no longer there.
1.The two farmers were _____.
|
A.going home |
B.going to the field |
|
C.going to work |
D.going to see their friend |
2.The two farmers _____ on that day.
|
A.had a holiday |
B.didn't work |
|
C.worked hard |
D.wanted to quarrel with each other |
3. When there are black block clouds in the sky, _____.
|
A.it will rain soon |
B.it will be fine |
|
C.it will get hot |
D.the sun is shining brightly |
4. The two farmers fought in words because _____.
|
A.they were hungry |
|
B.it rained |
|
C.one said the rain would do good to the crops and the other didn't think so |
|
D.they both hoped for rain |
5. The third farmer came with and said to the other two. He _____.
|
A.wanted to make friends with them |
|
B.joined them in the quarrel |
|
C.wanted to know why they were quarreling |
|
D.had nothings to do |
6. How many farmers said that the rain would be helpful? _____.
|
A.None |
B.One |
C.Two |
D.Three |
Two farmers were on their way home one evening after a hard day's work. Both were tired. They happened to look up at the sky and saw a black cloud overhead.
"Ah!" said one farmer, "tomorrow we shall have rain and the rice will grow well." The second answered, "Nonsense (胡说), the rain will only kill the crops (庄稼)."
So they began to quarrel (争吵). Just then a third farmer came along and asked them why they were quarreling. Both farmers explained about the black cloud.
"What cloud?" asked the third farmer. They all looked at the sky. The cloud was no longer there.
Choose the right answer
1.The two farmers were _____.
|
A.going home |
B.going to the field |
|
C.going to work |
D.going to see their friend |
2.The two farmers _____ on that day.
|
A.had a holiday |
B.didn't work |
|
C.worked hard |
D.wanted to quarrel with each other |
3.When there are black block clouds in the sky, _____.
|
A.it will rain soon |
B.it will be fine |
|
C.it will get hot |
D.the sun is shining brightly |
4.The two farmers fought in words because _____.
|
A.they were hungry |
B.it rained |
|
C.one said the rain would do good to the crops and the other didn't think so |
|
|
D.they both hoped for rain |
5.The third farmer came with and said to the other two. He _____.
|
A.wanted to make friends with them |
B.joined them in the quarrel |
|
C.wanted to know why they were quarreling |
D.had nothings to do |