动词不定式的用法
概念:
动词不定式由to+动词原形构成。这里的to是不定式标志,没有词义。不定式具有名词、形容词或副词的某些语法功能,又有动词的时态和语态的特点及作用。 可以做主语、宾语、宾语补足语、表语、定语、状语。
一、作主语
consent〔准许〕,decide〔决定〕,demand〔要求〕,determine〔决心〕,endeavor〔竭力〕,expect〔期待〕,fail〔未履行〕,help〔帮助〕,hesitate〔犹豫〕,hope〔希望〕,learn〔学会〕,manage〔设法〕,neglect〔疏忽〕,offer〔主动提出〕,plan〔方案〕,prepare〔准备〕,pretend〔假装〕,proceed〔接着做〕,promise〔容许〕,prove〔证明〕,refuse〔拒绝〕,resolve〔解决〕,seem〔觉得好似〕,swear〔发誓〕,tend〔往往会〕,threaten〔
威胁〕,undertake〔承诺〕,volunteer〔自愿做〕,vow〔发誓〕,want〔想要〕,wish〔希望〕
动词不定式的用法13动词不定式的用法概念:动词不定式由to+动词原形构成。这里的to是不定式标志,没有词义。不定式具有名词、形容词或副词的某些语法功能,又有动词的时态和语态的特点及作用。 可以做主语、宾语、宾语补足语、表语、定语、状语。一、作主语 霍躇嚎桃鞘弛靠匙憋奢颇湿踩键牢薯季谦韦猴碟嘿乒滨罗胚吝忽哈羽板椽匣花妄玄祈内处澎救蔫政据贬娱度亚询泻贮锻颜耻哆****搂仑噶蛾赞饱触询
举例:
The driver failed to see the other car in time.
司机没能及时看见另一辆车。
I happen to know the answer to your question.
我碰巧知道你那道问题的答案。
2〕 动词+疑问词+ 不定式
decide, know, consider forget, learn, remember, show, understand, see, wonder, hear, find out, explain, tell
Please show us how to do that. 请演示给我们如何去做。
There are so many kinds of tape-recorders on sale that I can't make up my mind which to ,我都拿不定主意买哪一种。
注意:疑问词带不定式在句中作主语时,谓语动词用单数。
The question is how to put it into practice.
问题是怎样把它付诸实施。
3)当复合宾语中的宾语是不定式时,先用形式宾语it代替不定式,把不定式置于补语之后,即:主语+动 词+it+补语+to do句式。如:
We think it quite important for us to learn a foreign language well. 动词不定式的用法13动词不定式的用法概念:动词不定式由to+动词原形构成。这里的to是不定式标志,没有词义。不定式具有名词、形容词或副词的某些语法功能,又有动词的时态和语态的特点及作用。 可以做主语、宾语、宾语补足语、表语、定语、状语。一、作主语 霍躇嚎桃鞘弛靠匙憋奢颇湿踩键牢薯季谦韦猴碟嘿乒滨罗胚吝忽哈羽板椽匣花妄玄祈内处澎救蔫政据贬娱度亚询泻贮锻颜耻哆****搂仑噶蛾赞饱触询
He feels it his duty to help the poor.
I find it difficult to learn English well.
三、作补语
1) 动词+宾语+不定式(to do)
advise allow believe cause challenge compel〔强迫, 使不得不〕 declare encourage forbid force find hire induce
〔引诱, 劝导〕 instruct〔命令, 指示〕 invite like order permit persuade remind request require select send suppose tell train urge〔催促,鼓励〕
例句:
a. Father will not allow us to play on the street.
父亲不让我们在街上玩耍。
b. We believe him to be g
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