Question

My brother is not ____ to lift the heavy stone.

A. too weak    B. weak too

C. strong enough    D. enough strong

Answer

C

【解析】句意：我弟弟不够强壮，搬不起那块重石头。too...to...太……以至于不能；enough修饰形容词或副词，要放于所修饰的形容词或副词的后面，（not ）+adj. / adv.+ enough to do … （不）足够…去做某事。结合句意可知，答案为C。

点睛：so…that, too…to和enough to都是初中英语教材中的重要语法结构，在一定条件下它们可以相互转换，并经常成为中考考查的热点之一。

1. too+adj./adv. + to do sth.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 do sth.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 否定句式

例：He is too young to go to school.

= He is not old enough to go to school.

= He is so young that he can't go to school.