2)不定式作宾语 不定式作宾语有两种:一种是及物动词后直接跟带to的不定式, 另一种是“及物动词+疑问词+带to的不定式。
及物动词+带to的不定式结构: 只能跟动词不定式的动词,常见的有: afford, agree, aim, appear, ask, believe, care,claim,decide demand, desire, determine, expect, fail, happen, hesitate, hope, intend, learn, long, manage, offer, pretend, promise, prepare, refuse, seek, swear, undertake,want, wish等。
1.He managed to solve the complicated problem. 2.The stranger offered to show me the way. 3.Mr. Smith undertook to build a new plant in South Africa.
动词+疑问代(副)词+不定式: 这类动词常见的有advise, decide, find out, forget, inquire, know, learn, see, regard, remember, teach, tell, understand, wonder等。常见的疑问代(副)词有: what, when, where, which, how, whether等。
1.He does not know when to start. 2.You can decide whether to continue or to stop. 3.I will show you how to deal with it.
有时,不定式可由it代替,而把不定式放到后面去。这可以用这一结构表达:动词(如find, think,consider,feel等)+it+ 形容词+不定式。 1.She considers it necessary to make friends with him. 2.We find it difficult to finish all the homework before 9 o’clock.
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