特殊疑问词+动词不定式”的用法归纳.doc
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1、如有侵权,请联系网站删除,仅供学习与交流“特殊疑问词+动词不定式”的用法归纳【精品文档】第 5 页 “特殊疑问词动词不定式”的用法归纳 一由两部分构成:疑问词和动词不定式(wh-+to do)。疑问词部分包括疑问代词who, whom, what, which和whose以及疑问副词when, where和how。此外,连接词“whether”也适用.它 主要具有以下几种功能:当主语,如: When to hold the meeting has not yet been decided. Where to live is a problem. 当宾语,常接在forget, find out,
2、 discuss, decide, tell, teach, know, learn, wonder, remember等动词之后作宾语如: We must know what to say at a meeting. He could not tell whom to trust. Do you know how to play bridge? 当表语,如: The problem is where to find the financial aid. The question is who to elect. 当名词同位语,如: Tom had no idea which book to
3、read first. The question whether to confess troubled the girl.用于宾语补足语,双重宾语。某些动词后可接“sb.+ 疑问词 + 不定式”构成的双重宾语,这类动词常用的有advise, ask, show, teach, tell等如: I can tell you where to get this book. I ask her how to learn English. He will advise you what to do. Will you show me how to use the machine?(6) 作介词宾语:
4、某些介词后面可接疑问词不定式作宾语,这类介词常用的有 about, as, from, in, of, on, with等。例如:He has no idea of how to answer this question. 他不知道怎样回答这个问题。 Della had only $1.87 with which to buy Jim a present. 德拉仅有$1.87为来吉姆买一件礼物。(which是关系代词) You have a number of topics from which to choose. 你有很多题目可以选择。(which是关系代词)二“特殊疑问词动词不定式”这种
5、结构可以把复合句转为简单句。如: I dont know what Ill do next. = I dont know what to do next.The doctor told him when he should take the medicine. = The doctor told him when to take the medicine. 同样,因为“特殊疑问词动词不定式”这种结构相当于一个名词性从句,所以可用同等成分的从句代替,从而把简单句转换为复合句。改写时只需在疑问词后加上适当的主语,并把不定式改为适当的形式的谓语即可。如: Which to choose is imp
6、ortant. = Which we should choose is important.The question is where to go. = The question is where we should go.三、“特殊疑问词动词不定式”这种结构可构成独立问句。如:What to do? 怎么办? How to get rid of the trouble? 如何摆脱困境?按照英语语法的习惯,疑问副词why后不直接跟动词不定式,如:误:I dont know why to choose that dictionary.正:I dont know why you must choo
7、se that dictionary.但它可以接不带to的动词不定式,即动词原形,构成why do sth./ why not do sth. 肯定形式是表示某动作是不必要的或没有意义的,而否定形式是表示向某人提建议和表达看法,相当于祈使句。Today is Sunday. Why not go out to relax yourself?Why pay more at other shops? We have the best value.练习:1.Ihavenoideawhen_herthebadnews. A. willtellB. tellingC. tellD. totell2. W
8、ill you please show me how to do the role-play exercise?Sure. Now let me tell you _ first.A. which to do B. how to doC. when to do D. what to do 3. I need your help because I dont know _.A. how to do it B. how to doC. what to do it D. what should I do 4.How are you feeling here?Its quite hot. I dont
9、 know _ to go or stay.A. how B. whenC. whether D. where 5. I dont know _ to do with this maths problem. Its too hard. You can ask your classmates or teachers for help.A. which B. how C. what D. when 6. Millie, could you give me some advice? I dont know _. Why dont you wear this red shirt?A. when to
10、wear B. what to wear C. how to wear D. where to wear 7. Im going on a field trip but I havent decided_.A. what to do B. to do what C. where to go D. to go where 8 This physics problem is too difficult. Can you show me _, Wang Lin? Sure. A. what to work it out B. what to work out it C. how to work it
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