Question

【题目】 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 the history of the earth. 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 polluting the earth’s water and air, but most people did not change their way of life. Instead, they continued to pour dangerous chemicals 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 earth’s water was completely polluted. People could no longer drink water, and they had to use other types of liquids.

So, by the year 2300, there were so many people that food became scarce. There was no water to grow food and all of the fish in the lakes and seas died because of the 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. Where did we go? Nowhere. The scientists did not find another safe planet, so now we must travel around the universe in our spaceships. We are still looking for a place to call our home.

So, it is up to change history. There is still hope. You must change your lifestyle now, before it is too late.

根据短文内容选择最佳答案。

【1】What is the meaning of “scarce” in Chinese?

A.有价值的B.缺少的C.特殊的

【2】Which problem is NOT talked about in Paragraph 2?

A.Water.B.Food.C.Air.

【3】We had to when the air was too polluted for humans to breathe.

A.cut down the treesB.use other types of liquidsC.leave the earth

【4】Which of the following is TRUE according to the passage?

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

B.There wasn’t enough food for people to eat by the year 2200.

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

【5】Which of the following should be the best title of the passage?

A.Look for New Home

B.Return to the Earth

C.Change or Leave

Answer 1

【答案】

【1】B

【2】B

【3】C

【4】A

【5】C

【解析】

文章大意：本文主要以拟人的手法讲述了环境污染的严重事实，作者通过时间隧道从2500年穿越回到了20到25世纪的不同时代，并描述了各个不同时代的污染的严重性，提醒人类保护环境，爱护人类自己．

【1】词义猜测题。根据本句内容“So by the year 2300， there were so many people that food became scarce．”可知，本句中包含一短语so…that…，意为截止到2300年，地球上的人类是如此之多以致于食物变得太少．再加上下一句“There was no water to grow food”，可知食物应该是不够人类吃的，可知，“scarce”是“缺少的”意思，故答案为B。

【2】细节理解题。根据短文第二段“a few people were worried about polluting the earth's water and air， but most people did not change their way of life．”内容可知，本段主要涉及到了空气质量、水资源和人类的生活方式，唯独没有提到食物方面的问题，故答案为B。

【3】细节理解题。根据短文第四段“By the year 2400， the air was too polluted for humans to breathe． So we had to leave the earth． ”可知，到了2400年，空气被污染得无法呼吸。所以我们不得不离开地球。故答案为C。

【4】细节理解题。根据短文第二段“Beginning in the middle of the 20th century， a few people were worried about polluting the earth's water and air， but most people did not change their way of life．”可知，从20世纪中叶开始，有少数人担心污染地球的水和空气，但大多数人并没有改变他们的生活方式。也就是： 在20世纪中叶，只有少数人改变了他们的生活方式。A是对的。根据文中“By the year 2200, the earth’s water was completely polluted” 到2200年，地球上的水被完全污染了。可知，B. There wasn’t enough food for people to eat by the year 2200.是错误的；根据文中“So, by the year 2300, there were so many people that food became scarce.” 所以，到了2300年，人口太多，食物变得稀缺。可知，C. All the animals died because of pollution by the year 2300.是错误的，故答案为A。

【5】主旨大意题。纵观全文内容可知本文主要描述的就是人类的污染环境极其严重，已经严重威胁人类的生存，到了非停止不可的地步了，否则我们不得不离开地球。所以C项Change or Leave“改变或离开”作为文章标题比较合适，故答案为C。