2．There more? water if people don’t save.——青夏教育精英家教网—

Our earth is in trouble. Our drinking water is becoming dirtier, and the air is not as clear as before. People and factories are polluting the air, rivers, lakes and seas. You might think there is nothing you can do to help. That’s not true. There are many things you can do to help the earth.

Cars burn gasoline. This will produce a lot of CO into the air. Some people believe that CO is making the earth warmer. They think CO thins the clouds above us. The clouds keep us away from the strongest sunlight. So try to walk, ride a bicycle or take a bus. And if you drive a car, drive at a steady speed. This can save some gasoline.

The biggest energy use at home is for keeping warm or coo1.So turn the air conditioner off when you don’t need to use it. Use lights that save energy.

Use fewer things that cannot be used again. When you buy something, consider those made from things that can be used again first.

A lot of water is needed for a shower. In one week an American family uses as much water for showers as a person drinks in three years! Buy a waterworks that uses less water, or take shorter showers. This can cut the use of water.

1. The writer thinks that we can do_________ for the earth.

A. something B. nothing C. little D. few things

2. If there is too much CO in the air, the earth will become _________.

A. 1arger B. warmer C. more colourful D. colder

3. The underlined word “thin” here means _______in Chinese.

A. 稀薄的 B. 使……变稀薄 C. 瘦的 D. 使……变瘦

4. We use the most energy at home for____.

A. washing clothes B. having showers

C. keeping quiet D. keeping warm or cold

5. The writer suggests ________to save water.

A. using milk to have a bath B. showering once a week

C. spending less time showering D. using a big waterworks

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　　The world is not hungry, but it is thirsty．It seems strange that nearly 3/4 of the earth is covered with water while we say we are short of(短缺)water．Why?Because about 97％ of water on the earth is sea water which we can’t drink or use for watering plants directly(直接地)．Man can only drink and use the 3％－the water that comes from rivers and lakes．And we can’t even use all of that, because some of it has been polluted(污染)．

　　Now more water is needed．Can we avoid(避免)a serious water shortage later on?First, we should all learn how to save water．Second, we should find out the way to reuse(再利用)it．Scientists have always been making study in this field．Today, in most large cities, water is used only once and then runs to the sea or rivers．But it can be used again．Even if every large city reused its water, still there would not be enough．What could people turn to next?

　　The sea seems to have the best answer．There is a lot of water in the sea．All that needs to be done is to get the salt out of the sea water．This is expensive, but it’s already in use in many parts of the world．Scientists are trying to find a cheaper way of doing it．So you see, if we can find a way out, we’ll be in no danger of drying up．

(1)

The world is thirsty because ________．
[　　]
A．	3/4 of the earth is covered with water
B．	we have enough sea water to use directly
C．	we haven’t used all the water in rivers and lakes
D．	about 97％ of water on the earth can’t be drunk or used for watering plants directly

(2)

Which of the following is true?
[　　]
A．	3％ of water on the earth is in rivers and lakes．
B．	75％ of water on the earth is in the sea．
C．	97％ of the earth is covered with water．
D．	3％ of water on the earth is sea water．

(3)

From the passage we learn ________．
[　　]
A．	if every city reused its water, we’ll be in no danger of drying up
B．	man can only drink and use about 25％ of water on the earth
C．	today in most large cities water is used only once
D．	water can be used only once

(4)

To avoid the serious water shortage, which of the following is the most important?
[　　]
A．	Save water and try to make good use of the water in rivers and lakes．
B．	Don’t pollute water and keep all rivers and lakes clean．
C．	Make dirty water clean and then reuse it．
D．	Try to find a cheaper way to get the salt out of the sea water．

(5)

The name of the passage should be “________”．
[　　]
A．	The Sea Water
B．	How To Save Water
C．	The Thirsty World
D．	The Polluted Water

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短文填空
The most important drink is water. Not many people understand this but it is quite t 1 . People can l 2   for a long time without food, but they will die if two or three days w 3   water. In h 2   weather, many people do not drink e 5   water, because they don’t know how much water they n 6  . After t 7   exercise, people need more water.
The water in man’s body is m 8   more than other matters(物质). We’d better have enough water, or we may get i 9  . Water is n 10   to all the living things. There will be no l 11   if there is no water.
So we must save water and don’t w 12   water. 查看习题详情和答案>>

短文填空
The most important drink is water. Not many people understand this but it is quite t 1 . People can l 2   for a long time without food, but they will die if two or three days w 3   water. In h 2   weather, many people do not drink e 5   water, because they don’t know how much water they n 6  . After t 7   exercise, people need more water.
The water in man’s body is m 8   more than other matters(物质). We’d better have enough water, or we may get i 9  . Water is n 10   to all the living things. There will be no l 11   if there is no water.
So we must save water and don’t w 12   water.

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