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    精英家教网 > 练习册解析答案 > 仁爱英语基础训练九年级上册仁爱版云南专版 > 第31页解析答案
    仁爱英语基础训练九年级上册仁爱版云南专版

    仁爱英语基础训练九年级上册仁爱版云南专版

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    Ⅴ. 阅读理解。
    (A)
    The earth is around 4,600 million years old. Modern human beings have lived on the earth for only 35,000 years. But we have changed our planet a lot during that time. We have done something good, but more are bad for our planet.
    Water pollution
    Water pollution has made a lot of fish die. Factories have polluted the land and the water so that many lands, rivers and lakes are no life. There are no plants in the lands, and no fish in the rivers and lakes.
    Air pollution
    In big cities, air pollution is mainly caused by factories, cars, trucks and buses. Many people in cities now are in bad health. For example, Mexico city was a beautiful and sunny capital before, but now it is always covered with thick brown clouds.
    Soil pollution
    In order to have a good harvest, most of the farmers use too much chemistry in their fields. That polluted the soil. But it is difficult to prevent this kind of pollution.
    Hope for the future
    Pollution is bad for our health, so all of us should take action to prevent all kinds of pollution. If we can stop these pollution, our earth will become more and more beautiful and we'll live longer and healthier. Let's be greener people!
    根据短文内容,选择最佳答案。
    (
    A
    ) 1. ______ have made the earth change a lot.
    A. Human beings
    B. Animals
    C. Plants
    D. People in other planets
    答案：A
    解析：根据文中“But we have changed our planet a lot during that time.”可知we指的是人类（Human beings），故选A。
    (
    B
    ) 2. There are ______ kinds of pollution in this passage.
    A. two
    B. three
    C. four
    D. five
    答案：B
    解析：文中提到了Water pollution, Air pollution, Soil pollution三种污染，故选B。
    (
    A
    ) 3. What's the big problem now?
    A. Pollution.
    B. Population.
    C. Water.
    D. Policy.
    答案：A
    解析：通读全文可知，文章主要讲的是各种污染问题，所以现在的大问题是污染，故选A。
    (
    A
    ) 4. Which one is NOT true according to the passage?
    A. Most of things that we have done are good for our planet.
    B. We must stop the factories from pouring waste water into the rivers and lakes.
    C. Because of water pollution, many rivers and lakes are now dead.
    D. Water pollution is very serious nowadays.
    答案：A
    解析：根据文中“We have done something good, but more are bad for our planet.”可知我们做的更多的是对地球有害的事情，A项错误，故选A。
    (
    B
    ) 5. What does the passage tell us?
    A. Mexico city is a beautiful capital.
    B. Air pollution can make people sick.
    C. Now fewer farmers use chemistry in the fields.
    D. Factories is the main cause of soil pollution.
    答案：B
    解析：根据文中“Many people in cities now are in bad health.”可知空气污染会使人生病，B项正确；A项文中说墨西哥城现在被乌云覆盖，不再美丽；C项文中说农民用太多化学物质，不是更少；D项土壤污染的主要原因是农民用太多化学物质，不是工厂，故选B。
    (B)
    Dr. Smith is very interested in cleaning water, so he invented a machine called "Living Machine", which can clean waste water in your home or at your workplace.
    The "Living Machine" is a system for cleaning waste water. The waste water is dealt with in the machine and the water is brought into a greenhouse filled with plants and fish. With the help of sunlight, the plants and animals remove most chemicals from the water, making it cleaner. Then the water can be reused for washing or bathing. It can't be used for drinking or cooking, but people can use it to water the flowers, wash the dog or swim.
    The advantage of the machine is that it is good for the environment. It can help to use less fresh water, and it can help keep the water unpolluted.
    根据短文内容,选择最佳答案。
    (
    A
    ) 1. What is Dr. Smith interested in?
    A. Cleaning water.
    B. Planting trees.
    C. Wasting water.
    D. Using money.
    答案：A
    解析：根据文中“Dr. Smith is very interested in cleaning water”可知选A。
    (
    D
    ) 2. What is the invention used for?
    A. Saving money.
    B. Washing.
    C. Watering flowers.
    D. Cleaning waste water.
    答案：D
    解析：根据文中“The 'Living Machine' is a system for cleaning waste water.”可知选D。
    (
    B
    ) 3. Where do the plants and the fish remove most chemicals from the water to make it cleaner?
    A. At Dr. Smith's.
    B. In a greenhouse.
    C. In a box.
    D. In a machine.
    答案：B
    解析：根据文中“the water is brought into a greenhouse filled with plants and fish. With the help of sunlight, the plants and animals remove most chemicals from the water”可知选B。