選擇最佳選項(xiàng)

Look at the Earth from space. Why does our planet look so blue? It’s blue because water covers almost three quarters of the Earth’s surface. Water is not just an important part of our planet. It is an important part of our body, too. More than half of our total body weight is water.

Our body loses water whenever we exercise or go to the toilet. That’s why we need to drink plenty of water every day. We drink water. We use it to cook, clean, and carry waste out of our homes. Farmers use it to grow vegetables and crops like rice and corn; factories use it to make products.

Since the 1950s, the amount(數(shù)量)of water people use has increased by three times. But the water supply(供應(yīng))hasn’t. Scientists worry that soon there won’t be enough water for us, as well as for the animals and plants that share our world. What can we do to help? Use water wisely.

Having enough water isn’t our only problem.We also need it clean.

Right now, ships and factories are putting wastes into seas, rivers and so on. Even chemicals that farmers use are running into rivers and lakes. All this pollution can make the water dangerous to drink. It can also harm fish and other water-living lives.

We must do something to stop pollution. It’s the best way to protect our world’s most valuable natural resource(資源).

11.How many important areas of water are mentioned in Paragraph 1?

A.One.

B.Two.

C.Three.

D.Four.

12.The underlined sentence “We also need it clean” in Paragraph 4 means” ______.”

A.We also need water to wash things

B.We also need water that looks clean

C.We also need to keep water clean

D.We also need to discover clean water

13.This passage was written to ______.

A.ask people to value water

B.advise people to drink more water

C.introduce the uses of water

D.describe the situation of water supply

答案與解析

11-13BCA

11.細(xì)節(jié)理解題。根據(jù)“Water is not just an important part of our planet. It is an important part of our body, too”可知，水不僅僅是地球的重要組成部分，它也是我們身體的一個(gè)重要部分;一共提到了兩個(gè)水資源的重要區(qū)域，故選B。

12.句意猜測(cè)題。根據(jù)下文“Right now, ships and factories are putting wastes into seas, rivers and so on”可知，下文講述了水污染的情況，所以我們必須要保持水資源是干凈的，劃線句子與C選項(xiàng)的句子同義，故選C。

13.主旨大意題。根據(jù)“We must do something to stop pollution. It’s the best way to protect our world’s most valuable natural resource”可知，作者的目的是讓人們珍惜水資源，故選A。

重要單詞&詞組總結(jié)

planet n.行星;地球

quarter n.一刻鐘，四等分之一

surface n.表面

more than超過(guò)

weight n.重量

plenty of充足的

grow vegetables種菜

increase by增加了…;increase to增加到…

harm v.& n.危害

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