So if we take all these steps, well be in no danger of drying up !
1 The phrase the world in the first line of the passage refers to
A man
B you
C woman
D they
2 What percentage of the earths water can man actually use at present?
A Nearly 75 per cent
B About 97 per cent
C Exactly 3 per cent
D Less than 3 per cent
3 According to the passage, we can avoid a worldwide water shortage in the future by
A increasing rainfall
B reusing water and utilizing sea-water
C cutting down our consumption of water
D reducing the number of factories producing steel
4 Which of the following statements, according to the passage, is NOT true?
A A limited water supply will affect industrial production.
B Every large city purifies and reuses its water.
C Purified water is not exactly as fresh as spring water.
D Oceans are the largest water source.
5According to the passage, sea-water can be turned into fresh water by
A heating it up
B treating it with chemicals
C taking salt out of it
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