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Ladies and gentlemen, I returned to this...

Ladies and gentlemen, I returned to this year in a time machine. In the year 2500, we are able to travel through time to any year in history. This year is your last chance to change your lifestyle to save the Earth.

Beginning in the middle of the 20th century, a few people were worried about the polluted water and air on the Earth, but most people did not change their way of life. Instead, they continued to pour dangerous chemicals (化学品)and other waste into lakes and seas, to drive more and more cars and trucks, and to cut down trees.

By the year 2200, the water on the Earth was completely polluted. People could no longer drink the water, and they had to use other types of liquids. Scientists said that in the future there might be too many people on the Earth. But not enough was done. So, by the year 2300, there were so many people that food became scarce. There was no water to grow food and all fish in the lakes and seas died because of pollution. Terrible wars broke out between the rich and the poor. Scientists were working very hard to find another planet in space where humans could live.

By the year 2400, the air was too polluted for humans to breathe. So we had to leave the Earth. But only the rich were able to leave. Where did we go? Nowhere. And everywhere. You see scientists did not find another safe planet, so now we must travel around the universe (宇宙)

in our spaceships. We are still looking for a place to call our home. So, it is up to you to change history. There is still hope. You must change your lifestyle now, before it is too late.

1.Which problem is not talked about in Paragraph 2?

A. Water.    B. Air.    C. Lifestyle.    D. Food.

2.What’s the meaning of “scarce” in Passage 3?

A. 昂贵的    B. 充足的    C. 缺乏的    D. 特殊的

3.Who could leave the Earth by the year 2400?

A. The rich.    B. The poor.    C. Scientists.    D. All the people.

4.Which of the following is true?

A. Only a few people changed their lifestyle in the 20th century.

B. There wasn’t enough water for people to drink by the year 2200.

C. All the animals died because of pollution by the year 2300.

D. We found a new home in another planet by the year 2400.

5.Which is the best title for the passage?

A. Stop polluting.

B. Change or leave.

C. Look for a new home.

D. Return to the Earth.

 

1.D 2.C 3.A 4.A 5.B 【解析】由于人们的错误的生活方式,他们没有意识到环境污染的严重性,从而导致现在地球上的污染日益严重。如果人们再不改变生活方式,在未来地球也许将不会适合人类居住。 1.细节理解题。根据短文第二段的内容中worried about the polluted water and air以及most people did not change their way of life可知,这一段中提到了污染的水和空气,也提到了人们的生活方式,没有提到食物,故选D。 2.词义猜测题。根据划线单词所在的句子So, by the year 2300, there were so many people that food became scarce.以及上句话Scientists said that in the future there might be too many people on the Earth可知,科学家们说在未来地球上的人可能会很多,到2300年,人口会变得如此多,以至于食物就会变得匮乏。由此可推测scarce的意思是缺乏的,选C。 3.细节理解题。根据短文最后一段中By the year 2400, the air was too polluted for humans to breathe. So we had to leave the Earth. But only the rich were able to leave.可知,到2400年,空气会污染很严重,我们会无法呼吸,所以不得不离开地球,但是只有富人能够离开。由此可知应选A。 4.推理判断题。根据短文第二段中Beginning in the middle of the 20th century, a few people were worried about the polluted water and air on the Earth, but most people did not change their way of life可知,在20世纪中期,大多数人都没有改变生活方式,由此可知A选项符合文意。根据By the year 2200, the water on the Earth was completely polluted. People could no longer drink the water, and they had to use other types of liquids可知B不对;C选项没有提到;根据You see scientists did not find another safe planet,可知D不对。 5.主旨大意题。这篇短文讲述了现在地球上的污染非常严重,这主要是由于人们的生活方式不正确导致的,如果人们再不改变,到2400年,地球将不再适合人类居住,人类只有离开地球。故B选项的Change or Leave,改变还是离开,具有概括性,并能提炼出文章的主题,是适合做题目的。 点睛:这是一篇科普说明文,短文中给读者们介绍了因为人们错误的生活方式,而导致地球上的污染日益严重,未来地球也许将不再适合人类居住。做题的时候,我们可以利用题干中的一些信息词寻找答案,例如第1小题题目中的in Paragraph 2,我们知道答案在第二段中,仔细阅读第二段的内容,并对比答案就可以知道选择哪一项。再例如第3小题,我们可以利用题干中的年份做关键词,找到文章相关的部分,寻找有用信息。在做推理判断题这一题型的时候,需要正确理解选项的内容,在文章中寻找依据,运用排除法进行选择。
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