阅读理解: Many places in the world need more freshwater．Every country is trying to find ways to turn salt water into fresh． Why aren't there many factories like the Symi factory? In some places, the su 题目和参考答案——青夏教育精英家教网—

阅读理解：

　　Many places in the world need more fresh(淡的)water．Every country is trying to find ways to turn salt water into fresh．

　　Why aren't there many factories like the Symi factory?

　　In some places, the sun is not hot enough．Or it does not shine every day．

　　In such places, other ways of heating(加热)sea water can be used．These ways cost more money, but they work faster than the sun．By boiling(煮沸)sea water with high heat, a lot of fresh water can be made quickly．

　　But heating is not the only way to get fresh water from salt water．Other ways are tried．

　　One way is freezing(冷冻)．The fresh part of salt water freezes first．To get fresh water, the bits of ice are taken out．

　　Which way is the best?The one that gives the most water for the least money．It may be a different way for each place．

　　Symi’s way seems very good for small, hot places．It does not make very much water at a time．But the factory is easy to build and costs little．

　　That is why people in many dry places talk about Symi!

根据短文内容，选择最佳答案。

(1)

From the passage we know that fresh water ________．
[　　]
A．	is needed in every country
B．	can be found in many factories
C．	can be used in many ways
D．	is very important for factories

(2)

What is the writer mainly talking about in the passage?________
[　　]
A．	Hot places and dry places．
B．	The ways of making fresh water from sea water．
C．	How to make good use of the sun．
D．	Water-making factories in different countries．

(3)

The Symi factory ________．
[　　]
A．	is a fresh water-making factory
B．	can be built everywhere
C．	can make much fresh water at a time
D．	does not need sunshine every day

(4)

Which is the best way for small and hot places to get fresh water?________
[　　]
A．	Boiling or heating the sea water．
B．	The way in hotter and drier places．
C．	The Symi’s way．
D．	Freezing the sea water in cold places．

(5)

Which of the following is wrong?________
[　　]
A．	New ways are tried to get fresh water．
B．	A lot of water can be made quickly by heating．
C．	The best way is to get more fresh water with the least money．
D．	The Symi’s way does not work in dry places．

答案：1．A;2．B;3．A;4．C;5．D;

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