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The world is not only hungry，but also thirsty.Perhaps this（1）s

ounds

strange to you，since nearly 70% of the Earth's surface （表面） is covered （2）w

ith

water.But about 97% of that is sea water，or salt water.Humans can only drink and （3）u

the other 3%—the fresh water from rivers，lakes，the underground and（4）o

ther

sources （資源）.And we cannot even use all of that.Even worse，some of it has been polluted.
However，as things stand today，this fresh water is still （5）e

nough

for us.But our need for water is （6）b

ecoming

larger and larger quickly—almost day by day.We should take action to do with this problem now and in this （7）w

we can get away from a serious worldwide water shortage （缺少） later on.
We all have to learn how to （8）s

top

wasting our valuable water.One of the first steps is to improve ways of reusing it.Today in most large cities，water is used only （9）o

nce

and then sent into a sewer system （排污系統(tǒng)）.From there it（10）r

uns

to the sea or runs into underground places.

【考點(diǎn)】人與社會(huì)．

【答案】ounds；ith；se；ther；nough；ecoming；ay；top；nce；uns

【解答】

【點(diǎn)評(píng)】

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發(fā)布：2024/6/27 10:35:59組卷：2引用：1難度：0.4

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