[解析]
As we know,water is very important to the man.We can't live with water.The amount of water which is suitable to drink are less and less.So some people don't care about it.They waste a lot of waters in their daily life.Even better,they pour dirty water into rivers.They throw rubbish into rivers,either.Many rivers and lakes are seriously polluting.Something must be done∧stop the pollution.Only in this way can we live happily.If they don't save water,the last drop of water will be a tear﹣drop of ours.
详解:
1.去掉the 考查冠词.man用作不可数名词时,可表示"人类",可与mankind换用,其前常不加冠词,作为单数名词跟单数动词连用.
2.with改为without 考查介词.根据句意:没有水我们不能生存.用介词without.
3.are改为is 考查主谓一致.主语The amount是单数形式,谓语动词也应用单数形式is.
4.So改为But 考查连词.前后两个分句之间是转折关系而非因果关系,用连词but.
5.waters改为water 考查名词.water作"水"讲时,是不可数名词,没有复数形式.
6.better改为worse 考查形容词比较级.根据句意:更糟糕的是.用形容词比较级worse.
7.either改为too 考查词语用法.either和too都意为"也",either用于否定句,too用于肯定句,本句是肯定句,用too.
8.polluting改为polluted 考查动词语态.主语Many rivers and lakes和谓语动词pollute是动宾关系,要用一般现在时的被动语态.
9.加to 考查动词不定式.此处动词不定式表示目的,作目的状语.
10.they改为we 考查代词.此处的we与前一句中Only in this way can we live happily的we应一致,表示泛指.