题目内容：

完形填空

This year,we have met a once-a-century drought( 旱灾  )in Yunnan. It makes us_     water is the “life blood”of our earth. Like air and sunshine,It is very important to livingthings. Without water,there can be__  -life on the earth. All animals and plants need water. Man also needs water. We need water to drink,to cook and to clean_     . It even_     the greater part of our bodies.

Water is almost everywhere. Even in the_    places of the world,there is water in the air. However,we can not drink sea water     fresh water.

To make things even worse,people often_    to keep the water clean. They throw rubbish into rivers,lakes and seas. So not all the fresh water is_     for us to drink.    a member of the earth,we mustn’t waste water any more. Something must be_    to protect water.

1.A．to know       B．knowing      C．know         D．knows

2.A．none         B．not           C．much         D．no

3.A．himself       B．ourselves     C．him          D．our

4.A．made of       B．makes up      C．makes        D．made in

5.A．drier         B．wetter        C．driest       D．beautiful

6.A．or            B．so            C．and          D．but

7.A．decide        B．fail          C．try          D．take

8.A．clean enough B．enough clean  C．enough good D．dirty enough

9.A．For           B．To            C．As           D．At

10.A．done         B．did           C．doing        D．do