这两个词语的主要区别在于它们的中心词以及它们所修饰的词不同。两者之中的前一个词都是修饰词,用来加强语气,后一个词是中心词。因此,在使用时只需要考虑后一个词的用法就行了。分述如下:

一、too many的中心词是many,用法与many相同,用来修饰复数可数名词。

例如:He's got too many questions to ask you.他有很多问题要问你。

They bought too many eggs yes- terday.昨天他们买了太多的鸡蛋。

Today,_____trees are still be- ing cut down somewhere in the world.(1999年辽宁)A.much too B.too muchC.many too D.too many

答案是D。今天,在世界上有些地方仍有很多树木被砍伐。

二、too much的中心词是much,用法与much相同,用来修饰不可数名词。

例如:We both have too much work todo.我们俩都有很多工作要做。

She spent too much money on clothes.她花太多钱买衣服。

The teacher told him not to spend too much time playing games.老师叫他不要花太多时间玩游戏。

I'm afraid that I've given you too much trouble.恐怕我太麻烦你了。

He can't hear you because there is _____noise here.(1999年黑龙江)A.very much B.too muchC.much too D.so many

答案是B。你讲话他听不到,因为这里太吵了。

Look!There's _____ice on the lake.A.too much B.much too C.a lot

答案是A。瞧!湖上有很多冰。

另外,too much还可作名词性短语,用作宾语;也可作副词性短语,在句中用作状语,修饰动词。

例如:You've given me too much.你给我的太多了。

I have too much to do every day, so I am very busy.我每天都有很多事情要做,所以我很忙。

He talked too much at the meet- ing,didn't he?他在会上讲得太多了,是吗?

Don't eat too much.不要吃得太多。

too many 后面接可数名词,too much 后面接不可数名词。