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英语四六级语法知识

学习经验 四级六级考试

2019年11月09日 17:11:00
在英语四六级考试中,单独考察的题几乎没有,但是语法知识点却贯穿整张试卷,下面是小编为大家整理的知识,希望可以为大家带来帮助,一起来学习一下吧。
to 的动词不定式
1) 情态动词 ( 除ought 外,ought to):
2) 使役动词 let, have, make:
3) 感官动词 see, watch, look at, notice , observe, hear, listen to, smell, feel, find 等后作宾补,省略to。 注意:在被动语态中则to 不能省掉。 I saw him dance. =He was seen to dance. The boss made them work the whole night. =They were made to work the whole night.
4) would rather,had better:
5) Why… / why not…:
6) help 可带to,也可不带to, help sb (to) do sth:
7) but和except:but前是动词do时,后面出现的动词用不带to的动词不定式。

8) 由and, or和than连接的两个不定式,第二个to 可以省去:
9) 通常在discover, imagine, suppose, think, understand等词后,可以省去to be:He is supposed (to be) nice.他应该是个好人。
举例: He wants to move to France and marry the girl. He wants to do nothing but go out. 比较: He wants to do nothing but go out. He wants to believe anything but to take the medicine.
典型例题 1) ---- I usually go there by train. ---- Why not ___ by boat for a change? A. to try going B.trying to go C.to try and go D.try going 答案:D. why not 后面接不带to 的不定式,因此选D。
2) Paul doesn't have to be made ___. He always works hard. A. learn B. to learn C. learned D. learning 答案:B. make后接不带to 的动词不定式,当其用于被动时,to 不可省略。

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