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题型:阅读选择 题类:压轴题 难易度:容易

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. It works very slowly. Since 1983, scientists have been able to change plants more quickly by changing their genetic(遗传的) material. Foods from plants grown in this way are called genetically modified(改变的) 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 in our 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,. 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 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)、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)、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
举一反三
 阅读理解

There have been many great inventions or things that change the way we live. The first great invention is the one that is still very important today—the wheel. This makes it easier to carry heavy things and to travel long distances.

For hundreds of years after that there were few inventions that as much effect as the wheel. Then in the early 1800s the world started to change. There was little unknown land left in the world. People didn't have to explore much any more. They began to work in order to make life better.

In the second half of the 19th century, many great inventions were made. Among them were the camera, the light and the radio. These all play a big part in our daily life today.

The first part of the 20th century saw more great inventions. The helicopter in 1909, movies with sound in 1926, the computer in 1928, jet planes in 1930. It was also a time when a new material was first made—Nylon (尼龙),which came out in 1935. It changed the kind of clothes people wore.

The middle part of the 20th century brought new ways to help people get over diseases. They worked very well. They made people healthier and allowed them to live longer. By the 1960s most people could expect to live to be at least 60. 

By this time most people in developed countries had a very good life. Of course new inventions continued to be made. But man now had a desire (渴望) to explore again. The Earth was known to man but stars were not. Man began looking for ways to go into space. Russia, United States, China and Japan have made their own steps into space.

In 1969, man took his biggest step away from the Earth. Americans first walked on the Moon. This is certainly just a beginning, though. New inventions will some day allow us to do things we have never yet dreamt of.

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