语法:动词不定式 to 的省略
1.主语部分有 to do ,系动词 is 或 was 时 ,作表语的不定式通常省去 to。如:
The only thing you have to do is press the button.你必须做的惟一事情是按按钮。
2.作介词 but ,expect ,besides 的宾语,前面又有实意动词 do 时,不定式通常省去 to. 如:
He said that Chen Shuibian had nothing to do except push a
pro-“independence” timetable.他说陈水扁除了推进支持“独立”的时间表外,什么也没有做。
3.主语部分暗含 to do,表语中的不定式通常省去 to。如:
All I want (to do) is go to school and study hard .我想要(做)的就是上学,努力学习。
4.当两个或多个不定式并列时,其后的不定式符号可以省略,但有对比关系时不可省略。如:
It is easier to say than to do . 说起来容易,做起来难。
5.在 would rather„than„ 等结构中,不定式符号常常要省略. 如:
I would rather stay at home than go to see a film.我宁愿呆在家也不愿去看电影。
6.在 see ,watch ,notice ,hear, listen to ,look at ,feel ,have, make, let
,observe 等词后作宾语补足语时省略不定式符号 to;why (not) do 结构 中, 不定式不带 to。如: a) I saw her enter
the room. 我看见她进入了房间
b) Why not join us ?为什么不加入到我们的行列里来呢?
