(1) too．．．to do sth．

 例：Politics is too important to be left to the politicians．

 （＝Politics is so important that it can't be left to the politicians．）

     政治太重要了，不能由政治家来决定。

 (2) only too --- to do sth

 例：I shall be only too pleased to get home.  我要回到家里就非常高兴。

 (3) too + adj + for sth

 例：These shoes are much too small for me.  我穿这双鞋太小了。

 (4) too + adj + a + n.

 例：This is too difficult a text for me.   这篇课文对我来说太难了。

 (5) can't … too +形容词     无论……也不为过

 例：We cannot emphasize the importance of protecting our eyes too much.

     我们再怎么强调保护眼睛的重要性也不为过。