to do sth什么情况当目的

Question

如题所述

Answer 1

动词不定式（to do）可以作如下几种状语，即做目的：

1）目的状语
in order to do sth.
so as to do sth.
to do sth.

2）程度状语（也有说成表示程度的结果状语）
adj./adv. + enough + to do sth.
too + adj./adv. +to do sth.
so + adj./adv. + as + to do sth.（注意不要遗漏as）
such + adj.+ a/an c.n.(单数)/c.n.(复数) + as + to do sth.

3）出其不意/出乎意料的结果
only/never + to do sth.
I arrived at the station only to find the train had left.
对比：预料之内的结果用分词作状语
I slipped, breaking the vase.

Answer 2

to do sth 作状语,个人认为把句子翻译成汉语以后,再分辨比较容易.