too...to...-与-enough...to...-与-so...that...的区别(共1页).doc

1.too+adj./adv. to+v.太.而不能做某事 例：He is too young to go to school. 他年纪太小还不能上学。 2.adj./adv.+enough to +v.足够.而能做某事 例：He is old enough to go to school. 他足够大了能上学了/他已到了上学的年龄了。 3.so +adj./adv.+that从句 如此.以致 例：He is so old that he can go to school. 通常来说，这三种句型可用于同义句转换，具体如下： too.to. =not 反义词 enough to =so.that 否定句 例：He is too young to go to school. = He is not old enough to go to school. = He is so young that he cant go to school.