特殊疑问词动词不定式优秀课件

The doctor told him when he should take the
medicine.
The doctor told him when to take the
medicine.
Li Ping doesn’t know why to learn English.
Li Ping doesn’t know why he should learn
动词常用的有advise, ask, show, teach, tell等。
例如：
谓语部分
宾语补足语
He will advise you what to do.
宾语
他会建议你们做什么。
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4. 作介词宾语：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。
The question is which to choose. 问题是挑选哪一个。
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二、“特殊疑问词＋动词不定式”这种结构可以 把复合句转为简单句。如：
I don’t know what I’ll do next.
源自文库
I don’t know what to do next.
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一、疑问代词who, what, which等和疑 问副词when, where, how等后面跟不 定式，构成不定式短语。这种结构在 句中可作主语、宾语、表语、宾语补 足语等句子成分。
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1. 作主语：作主语时，谓语动词常用单数形式。 例如：
Where to go tomorrow has not been decided.
作主语
明天到什么地方去尚未决定。
How to divide labor among the workers is still a question.
这些工人之间如何分工仍是个问题。
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2. 作宾语：能够接"疑问词＋不定式"作宾语的动 词常用的有advise, ask, consider, decide, discuss, explain, forget, know, learn, remember, show, teach, tell, wonder等。例如：
English.
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Which to choose is important. Which we should choose is important.
The question is where to go.
The question is where we should go.
例如：
介词
He has no idea of how to answer this question.
(no idea of this question) 他不知道怎样回答这个问题。
介词宾语
You have a number of topics from which to choose. (choose from)
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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？
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We are students. red.
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He is very clever. Her face turns
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5、作表语
Perhaps the most difficult challenge is how to survive without friends.
系动词
作表语 也许最难熬的挑战，就是生活中孤独无友。
你有很多题目可以选择。(which是关系代词)
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5. 作表语 表语是说明主语身份,职业,性质,状态或特征的句子成分，
补充说明主语的意义，因此，它也叫作主语补语。表语一 般用在连系动词后面，连系动词除了be之外，还有 become（成为）、look（看起来）、turn（变成）、go （变成）、seem（似乎）、appear（似乎、显得）、feel （摸起来）、sound（听起来）、smell（闻起来）等等。 可做表语的有: 形容词、代词、名词、分词、数词、介词 短语或副词和从句：例如：
He has to learn how to collect water, hunt for food, and make fire.
作宾语
谓语部分
他得学会收集淡水、寻找食物，生火什么的。
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3. 作双重宾语（宾语补足语）：某些动词后面可
接"sb.＋疑问词＋不定式"构成的双重宾语，这类