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题型:阅读理解-单选 难度:0.65 引用次数:45 题号:17478723

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 call 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 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 the 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 away. In 2050, we may think differently about them.

1. GM foods are made by ________.
A.farmersB.workersC.scientistsD.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. GM foods ________.
A.are a quick way to produce foodB.grow in the wild
C.are safeD.are grown only in rich countries
4. Why don’t some people 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 reading, 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
22-23八年级上·广东广州·期中 查看更多[2]
【知识点】 食物 科学技术 说明文

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【推荐1】 ?     1     about Hamburgers

Although “hamburger” has a German name, it actually started in the USA and is now popular all over the world. The most basic hamburger is two buns with a piece of beef and some lettuce and sauce in the middle, but a hamburger can have many other ingredients as well. In Shanghai, you can eat all different kinds of burgers. In Las Vegas, you can even taste a burger with gold foil (金箔)!



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【推荐2】But ugly fruits should be loved, too. In recent years, a new crop of “ugly produce” companies have been around the U.S. These start-ups sell those ugly fruits that supermarkets refuse. And they send them right to your door.

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Sounds like these companies have the right idea. They even offer deep low prices. That’s great news for customers. But not everyone is happy. Some people say these companies may be thinking only about themselves.

Imperfect produce isn’t always wasted.

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