不定式知识库

发布时间 : 星期日 文章不定式知识库更新完毕开始阅读

(2) It is the greatest happiness on earth ______.

A. loving and to be loved

B. to love and being loved

C. to love and to be loved

D. love and be loved

38. 注意:

当主语和表语都是不定式时,不能用形式主语代替动词不定式。

对)To teach is to learn. (错)It is to learn to teach.

(二)动词不定式作表语 不定式作表语可以说明主语的具体动作或表示目的。

39. (1)(表具体动作)That beggar

(乞丐) seems _____ anything yesterday. A. not to have eaten B. not to eat C. didn't eat D. to not have eaten

40.(1)(表目的)His wish is _____ an astronaut(宇航员).

A.to become B. becoming

41.注意:

有些作表语的不定式,在结构上是主动的,但在意义上却是被动的。 She is ______.

她应该受到责备。

A.to blame. B.to be blamed

42.The house is______. 此房出租。

A. to let B to be let

43.The result is____. 结果不久就会看到。

A. not long to see B. not long to be seen

(三) 动词不定式作宾语

不定式可以充当部分及物动词的宾语,也可以充当but和except等介词的宾语以及形容词的宾语。 1.作动词的宾语

必背:

只能用接不定式作宾语的动词有:

44.afford负担得起,常与can (could )/ be able to 连用,如:

(1)I can(am able to) afford____ a car

买得起一辆车

A.to buy B.buying

45.常用在否定句或疑问句..如: (1)can't(am not able to) afford ____ a car

买不起一辆车

A.to buy B.buying

46.happen 碰巧

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