1need(需要)作及物动词,后面可接不定式或名词化的动名词作宾语。接不定式时表示主动;接名词化的动名词时有被动的含义,相当于不定式的被动语态。
You need to finish your homework. 你得完成你的作业。
2need(必须)作情态助动词,用在否定句和疑问句中。此时need本身不变形,后面的动词也要用原形。
You need not worry about this. 你不必为此担心。
Need he come here? 你不必为此担心。
3need(需要,必要)作名词,且可构成短语如:be in need of(需要...),a friend in need(患难之交),in need(家境困难)。
There is no need to worry at all. 根本没有必要担忧。
4作助动词用:
用在否定句和疑问句中。否定形式常缩写为needn''t。
没有人称变化,即第三人称单数时不加-s。
后接动词原形,可指现在或将来。
need+have+p.p.表示对过去某事是否必要的看法,常含有责备之意。
动词;助动词
*1need(需要)作及物动词,后面可接不定式或名词化的动名词作宾语。接不定式时表示主动;接名词化的动名词时有被动的含义,相当于不定式的被动语态。
*2need(必须)作情态助动词,用在否定句和疑问句中。此时need本身不变形,后面的动词也要用原形。
*3need(需要,必要)作名词,且可构成短语如:be in need of(需要...),a friend in need(患难之交),in need(家境困难)。
*4作助动词用:
用在否定句和疑问句中。否定形式常缩写为needn''t。
没有人称变化,即第三人称单数时不加-s。
后接动词原形,可指现在或将来。
need+have+p.p.表示对过去某事是否必要的看法,常含有责备之意。
*5作意义动词用:
跟名词或代词,need有人称变化,即第三人称单数时用needs,而且有时态变化,<过去式>为needed。
跟名词化的动名词,这时的名词化的动名词相当于被动语态的不定式。
need作意义动词时,否定句和疑问句应加助动词。
*6作名词用: 当\"需要,必需\"解,不可数。
There is no need...句型后可跟for sth.,of doing sth.或to do sth.。
need作为实义动词时，通常用法是：
人＋need ＋to do
物＋need ＋doing
物＋need ＋to be done
由must引出的一般疑问句，肯定回答用must,否定答语用needn't或don't have to.
1.I _____know what is real.
A. want/ B. need doing C. need to
2. Did they---------- it yesterday?
A. needed to did B. needed to do C. need to do
3. You--------trouble about that.
A.not need B.needn’t C.mustn’t
4. I''ll come when you are ----- help.
A.on need for B.in need of C.at need for
5. We should always help those -----
A.on need B.in need C.at need for
6.you __to the meeting this afternoon if you have something important to do.
A..needn't come B.don't need come C.needn’t to come
7.Though your old mother need _________after, you need _____good care of yourself.
A. looking, take B. to be looked, take
C. looking, taking D. to be looked, to take
8.i want to go to the dentist’s, but you -------with me.
A.needn’t to go
C.needn’t go
B.don’t need go
1---5ccbcb 6----8abc
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