英语语法 too.to结构

【too...to 结构表示肯定含义的情况】
我们知道too...to结构一般表示否定含义,意为"太...以致于不能"
eg:He is too old to work.
但too...to在下列情况下却表示肯定含义:
⑴当too前或to前有否定词构成双重否定时.
eg:English is not too difficult to learn.
英语并不太难学.
He is too wise not to see that.
他很聪明,不会不懂这一点.
⑵当too后是glad,pleased,happy,delighted,satisfied,ready,willing,kind,apt,good,
true,easy,near,careful,well,early,delicious,eager,anxious等形容词或副词时.
eg:They are too anxious to leave.
他们急于离开.
He is too ready to help others.
他总是乐于助人.
与这些词连用时,too前还常加上only,all,but,just,simply等副词,意思不变,因为这些词加上too后与very同义.
eg:I'm only too glad to see you .
见到你非常高兴.
They are but too pleased to hear the news.
他们听到这个消息,非常高兴.
⑶与cannot连用时.
eg:You cannot be too careful(=You can never be careful enough) to do your homework.
你做作业越仔细越好(=无论怎样仔细也不过分).
⑷当不定式在句中作定语或真正的主语时.
eg:There are too many problems to be solved.
有很多问题有待解决.
It is too much to say that he is a fool

太......而不能......

too + Adj + to do sth.
太...而不能做...
有疑问欢迎追问。
希望对你有帮助

【too...to 结构表示肯定含义的情况】
我们知道too...to结构一般表示否定含义,意为"太...以致于不能"
eg:He is too old to work. 他太老了不能工作了。
He is too young to go to school.他太小不能上学。
但too...to在下列情况下却表示肯定含义:
⑴当too前或to前有否定词构成双重...