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题型:阅读选择 题类:常考题 难易度:困难

浙江外研版2018-2019学年初中英语八年级下册Module 3 单元测试卷(四)(含听力音频)

阅读理解

    Is there intelligent(有智力的)life on other planets? For years, scientists said "no." or "we don't know." But today this is changing. Seth Shostak and Alexandra Barnett are astronomers(天文学家). They believe intelligent life exists(存在)somewhere in the universe. They also think we will soon contact them.

    Why do Shostak and Barnett think intelligent life exists on other planets? The first reason is time. Scientists believe the universe is about 12 billion years old. "This is long enough for other planets to have intelligent life, "say Shostak and Barnett. The second reason is size the universe is huge. "Tools like the Hubble Telescope(哈勃望远镜)have shown that there are at least 100 billion galaxies, "says Shostak. "And our galaxy, the Milky Way, has at least 100 billion stars. Some planets going around these stars might be similar to the earth. "

    In the past, it was hard to look for signs of intelligent life in the universe. But now, powerful telescopes(高倍望远镜)allow scientists to discover smaller planets-the size of Mars or the earth-in other solar systems, these planets might have intelligent life.

    Have beings from space already visited the earth? "Probably not, "says Shostak. "It's a long way away. However, intelligent beings may contact us in other way, such as radio signals(信号). In fact, they may be trying to communicate with us now, but we don't have the right tools to receive their messages. However, this is changing. By 2025, we could make contact with other life forms in our universe and we might help each other. "

(1)、What is the main idea of Paragraph 2?
A、The age and size of the earth. B、Something about the Milky Way. C、The reasons why intelligent life might exist. D、The earth is the only planet with intelligent life.
(2)、Why was it hard to look for signs of intelligent life in the universe in the past?
A、There were not any smaller planets. B、There were not any powerful telescopes. C、The astronomers were not interested in them. D、The Milky Way didn't exist at that time.
(3)、Why haven't beings from space visited us yet according to Shostak?
A、Because they're afraid of us. B、Because it's long way away. C、Because they don't want to see us. D、Because they don't know how to use radio signals.
(4)、What does the underlined phrase "life forms" in the last paragraph mean?
A、Messages. B、Tools. C、Radio signals. D、Intelligent beings.
举一反三
阅读理解

    How green are you? Do you know how to be green?

    We all need a healthy environment, but we produce waste every day and it does harm to our environment. Though we are young,we can still do something to help. In fact, even the simplest everyday activities can make a real difference to the environment. Here are some ideas for you.

    Reduce

    Reduce means "use less". Don't waste things. This saves money and reduces pollution and waste going into the environment. Before we buy something new, think whether it is really necessary-or maybe the old one will be just as good! When we buy things, choose local products if possible, and try not to buy too many things from abroad.

    Reuse

    Reuse means "use again". Use things for as long as possible. When we buy things, make sure that they last a long time. We should look after them so that they will last, and we should repair them if we can instead of throwing them away and buying new ones. Don't use a paper cup or a paper bag. It's better to use a china(瓷器) cup and a lunch box because you can use them again.

    Recycle

    Recycle means "change things into something else". Though it takes energy to change something into something else, it's better than throwing things away or burning them. Find out what can be recycled in your neighborhood and take part in recycling programs. We should also buy products made from recycled materials, such as recycled paper, to help save trees.

    So please remember these three words: reduce, reuse and recycle.

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