文档库 最新最全的文档下载
当前位置:文档库 › need 用法,中考专题

need 用法,中考专题

need 用法,中考专题
need 用法,中考专题

need用法解析及练习(附答案)

一.用作实义动词

作为实义动词,need后面的宾语可以是名词、动名词、动词不定式或代词,这种情况下,need既可用于肯定句,也可用于否定句和疑问句,构成否定句和疑问句时要借助于助动词do或does.

1.need sth.

这是need最常见的用法之一,其后的宾语可以是名词,也可以是代词。如:

1). We need a great deal of money now. 我们需要和多钱。

2). They don’t it any more. 他们不再需要它了。

3). Does your father need any help? 你爸爸需要帮助吗?

2.need doing 与need to be done

need后面可跟动名词作宾语,这种情况下应注意两点:

①.主动形式的动名词doing具有被动的含义;

②.该动名词可以改为其动词不定式的被动形式而句子的意义不变。例如:

4). The door needs painting.

= The door needs to be painted. 那扇门需要油漆一下。

5). Your car needs mending.

= Your car needs to be repaired. 你的车需要维修了。

3.need to do sth.

作为实义动词,need后面需要接带to的动词不定式,表示有义务或责任去做某事。如:

6). What do we need to take for the picnic? 野餐我们需要带些什么?

7). Will we need to show our passports? 我们需要出示护照吗?

8). You need to take good care of your mother. 你要好好照料你妈妈。

二.用作情态动词

作为情态动词的need具有情态动词的一般性质,要充分阐释作为情态动词的need的用法,务必首先说明白情态动词的特征。情态动词的主要特征:

①.没有人称和数的变化。不论主语是第几人称,不论主语是单数还是复数,情态都词都无形式变化;

②.不能单独充当谓语。情态动词必须与一个实义动词一起构成复合谓语,并且这个实意动词要始终是动词原形。

③.变为否定句时只需在情态动词之后加not。

④.变为疑问句时只需将情态动词提到主语的前面。

这是情态动词的共性,作为情态动词的need当然也具有这些共性。了解了这些还不够,还要掌握作为情态动词need的一个个性,就是它只能用于否定句和疑问句,或用于由if或whether引导的宾语从句中,一般不能用于肯定句。理解了这些之后,我们便可以如此区分need的词性了:只要need后面跟的是动词原形,它就是情态动词。这时,变否定,只需在其后加not;变为疑问句,只需把它移主语的前面。例如:

9). Need I type this letter again? 我需要重新录入将这封信吗?

10). There is enough time. You needn’t hurry. 有的是时间,你不必着急。

11). The president wondered whether he need send more soldiers. 总统不知道他是否要增兵。

12). ---Must I hand in my homework now? 现在我必须交作业吗?

---No, you needn’t. 不,你不必。

三.用作名词

need作为名词,含义为“缺乏,需要”;其复数表示“基本需要”。要掌握两个词组:in (great) need of(急需)与meet the needs of(满足……的需要)。例如:

13). There’s no need for you to try again. 你不必再尝试了。

14). The factory is in great need of funds. 那家工厂急需资金。

15). This house of the 1790’s can even meet the needs of the 21st century. 这栋18世纪90年代的房子甚至能够满足21世纪的需要。

四.自我检测

( ) 1. You any help, do you?

A. don’t need

B. needn’t

C. need

D. doesn’t need

( ) 2. ---Must I stay at the office this afternoon? ---No, you .

A. don’t

B. needn’t

C. don’t need

D. can’t

( ) 3. Tom get up a little earlier tomorrow.

A. needs

B. need

C. need to

D. needs to

( ) 4. Need the doctor ________ with you tonight?

A. staying

B. stay

C. stays

D. to stay

( ) 5. Look! Your shirt is so dirty. It .

A. need washing

B. need to wash

C. needs washing

D. need wash

( ) 6. The supply can’t the demand.

A. meet need of

B. meet the need of

C. meet the needs of

D. meet needs of

( ).7. The hospital is blood.

A. in great need of

B. on great need of

C. in great need with

D. on great need with

( ) 8. Your room is full of dust. It .

A. need clean

B. need cleaning

C. need to be cleaned

D. needs to be cleaned

( ) 9. David anything to drink?

A. Need,…\

B. Needs,…\

C. Does…need

D. Do…need

( ) 10. You to the meeting tomorrow if you have something important to do.

A. needn’t to come

B. don’t need come

C. don’t need coming

D. needn’t come

最新need用法及练习

need用法解析 一.用作实义动词 作为实义动词,need后面的宾语可以是名词、动名词、动词不定式或代词,这种情况下,need既可用于肯定句,也可用于否定句和疑问句,构成否定句和疑问句时要借助于助动词do或does. 1.need sth. 这是need最常见的用法之一,其后的宾语可以是名词,也可以是代词。如: 1). We need a great deal of money now. 我们需要和多钱。 2). They don’t it any more. 他们不再需要它了。 3). Does your father need any help? 你爸爸需要帮助吗? 2.need doing 与need to be done need后面可跟动名词作宾语,这种情况下应注意两点: ①.主动形式的动名词doing具有被动的含义; ②.该动名词可以改为其动词不定式的被动形式而句子的意义不变。例如: 4). The door needs painting. = The door needs to be painted. 那扇门需要油漆一下。 5). Your car needs mending. = Your car needs to be repaired. 你的车需要维修了。 3.need to do sth. 作为实义动词,need后面需要接带to的动词不定式,表示有义务或责任去做某事。如: 6). What do we need to take for the picnic? 野餐我们需要带些什么? 7). Will we need to show our passports? 我们需要出示护照吗? 8). You need to take good care of your mother. 你要好好照料你妈妈。 二.用作情态动词 作为情态动词的need具有情态动词的一般性质,要充分阐释作为情态动词的need的用法,务必首先说明白情态动词的特征。情态动词的主要特征: ①.没有人称和数的变化。不论主语是第几人称,不论主语是单数还是复数,情态都词都无形式变化; ②.不能单独充当谓语。情态动词必须与一个实义动词一起构成复合谓语,并且这个实意动词要始终是动词原形。 ③.变为否定句时只需在情态动词之后加not。 ④.变为疑问句时只需将情态动词提到主语的前面。 这是情态动词的共性,作为情态动词的need当然也具有这些共性。了解了这些还不够,还要掌握作为情态动词need的一个个性,就是它只能用于否定句和疑问句,或用于由if或whether引导的宾语从句中,一般不能用于肯定句。理解了这些之后,我们便可以如此区分need的词性了:只要need后面跟的是动词原形,它就是情态动词。这时,变否定,只需在其后加not;变为疑问句,只需把它移主语的前面。例如: 9). Need I type this letter again? 我需要重新录入将这封信吗? 10). There is enough time. You needn’t hurry. 有的是时间,你不必着急。 11). The president wondered whether he need send more soldiers. 总统不知道他是否要增兵。 12). ---Must I hand in my homework now? 现在我必须交作业吗? ---No, you needn’t. 不,你不必。 三.用作名词 need作为名词,含义为“缺乏,需要”;其复数表示“基本需要”。要掌握两个词组:in (great) need of(急需)与meet the needs of(满足……的需要)。例如: 13). There’s no need for you to try again. 你不必再尝试了。 14). The factory is in great need of funds. 那家工厂急需资金。 15). This house of the 1790’s can even meet the needs of the 21st century. 这栋18世纪90年代的房子甚至能够满足21世纪的需要。 四.自我检测

need 用法

一.用作实义动词 作为实义动词,need后面的宾语可以是名词、动名词、动词不定式或代词,这种情况下,need既可用于肯定句,也可用于否定句和疑问句,构成否定句和疑问句时要借助于助动词do或does. 1.need sth. 这是need最常见的用法之一,其后的宾语可以是名词,也可以是代词。如: 1). We need a great deal of money now. 我们需要和多钱。 2). They don’t it any more. 他们不再需要它了。 3). Does your father need any help? 你爸爸需要帮助吗? 2.need doing 与need to be done need后面可跟动名词作宾语,这种情况下应注意两点: ①.主动形式的动名词doing具有被动的含义; ②.该动名词可以改为其动词不定式的被动形式而句子的意义不变。例如: 4). The door needs painting. = The door needs to be painted. 那扇门需要油漆一下。 5). Your car needs mending. = Your car needs to be repaired. 你的车需要维修了。 3.need to do sth. 作为实义动词,need后面需要接带to的动词不定式,表示有义务或责任去做某事。如: 6). What do we need to take for the picnic? 野餐我们需要带些什么? 7). Will we need to show our passports? 我们需要出示护照吗? 8). You need to take good care of your mother. 你要好好照料你妈妈。 二.用作情态动词 作为情态动词的need具有情态动词的一般性质,要充分阐释作为情态动词的need的用法,务必首先说明白情态动词的特征。情态动词的主要特征: ①.没有人称和数的变化。不论主语是第几人称,不论主语是单数还是复数,情态都词都无形式变化; ②.不能单独充当谓语。情态动词必须与一个实义动词一起构成复合谓语,并且这个实意动词要始终是动词原形。 ③.变为否定句时只需在情态动词之后加not。 ④.变为疑问句时只需将情态动词提到主语的前面。 这是情态动词的共性,作为情态动词的need当然也具有这些共性。了解了这些还不够,还要掌握作为情态动词need的一个个性,就是它只能用于否定句和疑问句,或用于由if或whether引导的宾语从句中,一般不能用于肯定句。理解了这些之后,我们便可以如此区分need的词性了:只要need后面跟的是动词原形,它就是情态动词。这时,变否定,只需在其后加not;变为疑问句,只需把它移主语的前面。例如: 9). Need I type this letter again? 我需要重新录入将这封信吗? 10). There is enough time. You n eedn’t hurry. 有的是时间,你不必着急。 11). The president wondered whether he need send more soldiers. 总统不知道他是否要增兵。 12). ---Must I hand in my homework now? 现在我必须交作业吗? ---No, you needn’t. 不,你不必。

need用法及练习

精品文档 need用法解析 一.用作实义动词 作为实义动词,need后面的宾语可以是名词、动名词、动词不定式或代词,这种情况下,need 既可用于肯定句,也可用于否定句和疑问句,构成否定句和疑问句时要借助于助动词do或does. 1.need sth. 这是need最常见的用法之一,其后的宾语可以是名词,也可以是代词。如: 1). We need a great deal of money now. 我们需要和多钱。 2). They don't it any more. 他们不再需要它了。 3). Does your father need any help? 你爸爸需要帮助吗? 2.need doing 与need to be done need后面可跟动名词作宾语,这种情况下应注意两点: ①.主动形式的动名词doing具有被动的含义; ②.该动名词可以改为其动词不定式的被动形式而句子的意义不变。例如: 4). The door needs painting. = The door needs to be painted. 那扇门需要油漆一下。 5). Your car needs mending. = Your car needs to be repaired. 你的车需要维修了。 3.need to do sth. 作为实义动词,need后面需要接带to的动词不定式,表示有义务或责任去做某事。如: 6). What do we need to take for the picnic? 野餐我们需要带些什么? 7). Will we need to show our passports? 我们需要出示护照吗? 8). You need to take good care of your mother. 你要好好照料你妈妈。 二.用作情态动词 作为情态动词的need具有情态动词的一般性质,要充分阐释作为情态动词的need的用法,务必首先说明白情态动词的特征。情态动词的主要特征: ①.没有人称和数的变化。不论主语是第几人称,不论主语是单数还是复数,情态都词都无形式变化; ②.不能单独充当谓语。情态动词必须与一个实义动词一起构成复合谓语,并且这个实意动词要始终是动词原形。 ③.变为否定句时只需在情态动词之后加not。 ④.变为疑问句时只需将情态动词提到主语的前面。 这是情态动词的共性,作为情态动词的need当然也具有这些共性。了解了这些还不够,还要掌握作为情态动词need的一个个性,就是它只能用于否定句和疑问句,或用于由if或whether引导的宾语从句中,一般不能用于肯定句。理解了这些之后,我们便可以如此区分need的词性了:只要need后面跟的是动词原形,它就是情态动词。这时,变否定,只需在其后加not;变为疑问句,只需把它移主语的前面。例如: 9). Need I type this letter again? 我需要重新录入将这封信吗? 10). There is enough time. You needn't hurry. 有的是时间,你不必着急。 11). The president wondered whether he need send more soldiers. 总统不知道他是否要增兵。 12). ---Must I hand in my homework now? 现在我必须交作业吗? ---No, you needn't. 不,你不必。 三.用作名词

need的用法

创作编号:BG7531400019813488897SX 创作者:别如克* Need(需要) 的用法 1.Need作为实义动词 有人称、数和时态的变化(在变为否定句和疑问句时需借助于助动词) (1)当主语是人时,后可接名词和动词不定式, 即:need sth./ need to do sth. Eg: He needs some help. It's cold outside. You need to wear more clothes. Need后跟不定式且用于否定句中时,表示“不必”,指没义务或没必要做某事。 Eg: You don't need to do it at once.你不必马上做那件事情。 (2)当主语为物时,后接名词或v-ing. Eg: The flowers need water. 这些花需要水。 The flowers need watering.这些花需要浇水。 2.need作为情态动词

(注:情态动词不能独立作谓语,必须和动词原形一起构成谓语,即need作为情态动词时,后面必须跟动词原形) 无人称、数和时态的变化,常用于否定句和疑问句中。Eg: You needn't go this week.这周你不必去。 由need引导的一般疑问句,肯定回答一般用must, 否定回答一般用needn't。Eg: -------Need I come? -------Yes, you must./ No, you needn't 注:由must引导的一般疑问句,肯定回答一般用must, 否定回答一般用needn't或don't have to Eg: --------- Must I go now? -------- Yes, you must. No, you needn't/don't have to. 创作编号:BG7531400019813488897SX 创作者:别如克*

need,must用法及练习

一?用作实义动词 1. need sth. 这是need最常见的用法之一,其后的宾语可以是名词,也可以是代词。如: 1) . The soup n eed salt. 2) . They don nbed afraid any more. 3) . Does he n eed any help? 通常物做主语,n eed后面可跟动名词作宾语,这种情况下应注意两点: ① .主动形式的动名词doing具有被动的含义; ② .该动名词可以改为其动词不定式的被动形式而句子的意义不变。例如: 4) . The door n eeds painting. =The door n eeds to be pain ted. 5) . Your car n eeds repairi ng. =Your car n eeds to be repaired. 3. need to do sth. 作为实义动词,need后面需要接带to的动词不定式,表示有义务或责任去做某事。如: 6) . What do we n eed to take for the party? 7) . Will we n eed to show our ID card? 8) . I n eed to take good care of my sister. ①.没有人称和数的变化。不论主语是第几人称,不论主语是单数还是复数,情态都词都无形式变化; ②.不能单独充当谓语。情态动词必须与一个实义动词一起构成复合谓语,并且这个实意动词要始终是动词原形。 ③.变为否定句时只需在情态动词之后加n ot。 9) . You needn't do it again 10) . He needn't worry about it . ④.变为疑问句时只需将情态动词提到主语的前面。例如: 11) . Need I type this letter aga in? 12) —Need I stay here any Ion ger? —No, you needn ' t. —Yes, you must. 三.用作名词 need作为名词,含义为缺乏,需要”其复数表示基本需要”要掌握两个词组:in (great) need of (急需) 与meet the needs o满足 ........ 的需要)。例如: 13) . There ' s no need for you to try again. 14) . The factory is in great n eed of fun ds. "need+have+done ”表示本来需要做某事而没有做。“ needn't+have+done ”则表示"本来不需要做某事而做了" 。 I n eed n't have bought so much wine —only five people came. He n eed have hurried to the statio n. In that case, be would n't have missed the trai n. you n eed not have said that “ should+have+done "意思是"本来应该做某事,而实际没做。”“ shouldn't+have+done "表示本来不应该做某事,而 实际做了。含有指责对方或自责的含意。 1. Tom, you are too lazy. The work should have been finished yesterday. 2. Look, Tom is cryin g. I should n't have bee n so harsh on him. 3 you should have told me “ must+have+done "表示对过去事情的肯定推测,译成"一定做过某事",该结构只用于肯定句。 1. It must have rained last ni ght, for the grou nd is wet. 2. You must have bee n mad to speak to the serva nt.

need用法小结

need用法小结 一、用作情态动词 表示必要,后接动词原形,即:need + do 1. 通常用在疑问句、否定句中。 疑问式:Need +主语+ do… 否定式:needn’t + do Need you go yet 你一定要去吗 No, I needn’t. 不一定要去。 You needn’t clean the house now. 你不必现在打扫房子。 2. need引导的疑问句,肯定回答要用must。 —Need I call him up now 我需要现在给他打电话吗 —Yes, you must.是的,需要打。 —No, you needn’t.不,不需要现在打。 3. need have done 的否定式或疑问式,表示“做了不必做的事”。 needn’t have done sth 本不必做某事(事实上却做了) Need +主语+ have done sth 当时非得做某事吗 You needn’t have told him because I had already told him about it . 你本没必要告诉他,因为我已经告诉他这件事了。 Need you have sold the house 你那时非得把房子卖掉吗 二、用作实义动词 表示需要(require, want, lack)或义务。 1. 可用于肯定句、疑问句和否定句。 肯定:need + to do sth 否定:don’t / doesn’t /didn’t need + to do sth 疑问:do +主语+ need to do sth I need to consult a dictionary. 我需要查词典。 Does she need to do the cooking 她需要做饭吗 Yes, she does.是的,她需要做饭。 No, she doesn’t.不,她不必做饭。 She doesn’t need to do the cooking. 她不必做饭。 2. need + 名词 They need my love and care. 他们需要我的关爱。 3. need doing表示被动含义。 The clothes need washing.这些衣服需要洗了。

(完整版)need,must用法及练习

一.用作实义动词 1.need sth. 这是need最常见的用法之一,其后的宾语可以是名词,也可以是代词。如: 1). The soup need s salt. 2). They don’t need afraid any more. 3). Does he need any help? 2.need doing 与need to be done 通常物做主语,need后面可跟动名词作宾语,这种情况下应注意两点: ①.主动形式的动名词doing具有被动的含义; ②.该动名词可以改为其动词不定式的被动形式而句子的意义不变。例如: 4). The door needs painting. = The door needs to be painted. 5). Your car needs repairing. = Your car needs to be repaired. 3.need to do sth. 作为实义动词,need后面需要接带to的动词不定式,表示有义务或责任去做某事。如: 6). What do we need to take for the party? 7). Will we need to show our ID card? 8). I need to take good care of my sister. 二.用作情态动词 ①.没有人称和数的变化。不论主语是第几人称,不论主语是单数还是复数,情态都词都无形式变化; ②.不能单独充当谓语。情态动词必须与一个实义动词一起构成复合谓语,并且这个实意动词要始终是动词原形。 ③.变为否定句时只需在情态动词之后加not。 9).You needn't do it again. 10).He needn't worry about it. ④.变为疑问句时只需将情态动词提到主语的前面。例如: 11). Need I type this letter again? 12)—Need I stay here any longer? —No, you needn’t. —Yes, you must. 三.用作名词 need作为名词,含义为“缺乏,需要”;其复数表示“基本需要”。要掌握两个词组:in (great) need of(急需)与meet the needs of(满足……的需要)。例如: 13). There’s no need for you to try again. 14). The factory is in great need of funds. “need+have+done”表示本来需要做某事而没有做。“needn't+have+done”则表示“本来不需要做某事而做了”。 I needn't have bought so much wine—only five people came. He need have hurried to the station. In that case, be wouldn't have missed the train. you need not have said that “should+have+done”意思是“本来应该做某事,而实际没做。”“shouldn't+have+done”表示本来不应该做某事,而实际做了。含有指责对方或自责的含意。 1. Tom, you are too lazy. The work should have been finished yesterday. 2. Look, Tom is crying. I shouldn't have been so harsh on him. 3 you should have told me “must+have+done”表示对过去事情的肯定推测,译成“一定做过某事”,该结构只用于肯定句。 1. It must have rained last night, for the ground is wet. 2. You must have been mad to speak to the servant.

need用法归纳

need用法归纳 有必要)

I need not have got up so early. 我本来不必那么早起床的(但事实上已早起床)。 ◇例句: 1. Need I type this letter again? 我需要重新录入将这封信吗? 2. There is enough time. You needn’t hurry. 有的是时间,你不必着急。 3. The president wondered whether he need send more soldiers. 总统不知道他是否要增兵。 4. ----Must I hand in my homework now? 现在我必须交作业吗? ----No, you needn’t. 不,你不必。 5. Your car needs mending. = Your car needs to be repaired. 你的车需要维修了。 ◇翻译句子: 1. 你不必再尝试了。________________________________________ 2. 在你需要帮助的时候我会来的。________________________________________ 3. 你不必为此担心。________________________________________ 4. 他有必要来吗? ________________________________________ 5. 你得完成你的作业。________________________________________ 6. 我必须马上去那里吗?不,你不必。_______________________________________ 7. 你的外套要洗了。______________________________________ ◇江苏13城市中考试题汇编: ( ) 1. ----Peter doesn’t mind lending you his camera. (2011无锡) ----He ________. I’ve already borrowed one. A. needn’t B. can’t C. mustn’t D. shouldn’t ( ) 2. ----Must we leave now? (2011连云港) ----No, we _______. We still have two more hours. A. can’t B. mustn’t C. needn’t D. shouldn’t ( ) 3. ----Must I mop up the floor now? ----No, you ________. (2010扬州) A. needn’t B. can’t C. shouldn’t D. mustn’t ( ) 4. The desk is not dirty. You _______ clean it. (2010盐城) A. mustn’t B. shouldn’t C. needn’t D. can’t

need 用法归纳(2012上)

need既可作情态动词,又可作实义动词,还可作名词,是高考中的考查率较高的词。 一、didn’t need to do与needn’t have done 这两种结构既有相同点也有不同点。相同点:都表示过去不必做某事。不同点:didn’t need to do表示“没必要做某事,实际上也没有做”之意。needn’t have done表示“虽然没有必要做某事,但已经做了”。比较: I didn’t need to get up early, because I had no work to do that morning. 那天早晨我没必要早起,因为我没什么事做。(实际上没早起) You needn’t have waken me up, Mum. I don’t have to go to school today. 妈妈,你本来用不着叫醒我,今天我不必上学。(实际上妈妈把我叫醒了) 【联想】need have done表示过去本来需要做某事, 但事实上未做。用于疑问句时意为“有必要……吗?”。如: Need they have done it yesterday? 他们昨天做这件事有必要吗? 【典型考例】 Mark _______ have hurried. After driving at top speed, he arrived half an hour early. (2010 天津) A. needn’t B. wouldn’t C. mustn’t D. couldn’t Key: A 二、need用法回顾: 1. need作情态动词,主要用于否定句和疑问句中。否定形式为needn’t。 对以need提出的问题作肯定回答要用must。 【典型考例】 — What sort of house do you want to have? Something big? — Well, it ______ be big —that’s not important. (2008 陕西) A. mustn’t B. needn’t C. can’t D. won’t Key: B 2. need作实义动词,意为“需要”。主语为人时,常使用不定式;主语为物时,常使用句型need doing / need to be done。 【典型考例】 As a result of the serious flood, two-thirds of the buildings in the area ______. (2007 陕西) A. need repairing B. needs to repair C. needs repairing D. need to repair Key: A 3. need作名词,意为“需要;必需品”。常用短语和句式:in need需要;be in need of需要;there is no need (for sb.) to do sth. 没必要做某事。 【典型考例】 _____________________(没有必要)call me when you arrive. Just come up to my house. I’ll be at home all day. (there) (2011 湖北)

(完整版)Need用法练习题

Need用法练习题 现在可能你很想知道你是否完全掌握了need的用法,请做下列练习,进行一次自我检测,将正确答案填写在题前的括号中。 ( ) 1. You ______any help, do you? A. don’t need B. needn’t C. need D. doesn’t need ( ) 2. ---Must I stay at the office this afternoon? ---No, you ______ A. don’t B. needn’t C. don’t need D. can’t ( ) 3. Tom ______get up a little earlier tomorrow. A. needs B. need C. need to D. needs to ( ) 4. Need the doctor stay with you tonight? A. Yes,he need. B. No,he don’t. C. Yes.he does. D. No,he doesn’t have to. ( ) 5. Look! Your shirt is so dirty. It________ A. need washing B. need to wash C. needs washing D. need wash ( ) 6. The supply can’t ________the demand. A. meet need of B. meet the need of C. meet the needs of D. meet needs of ( ).7. The hospital is ________blood. A. in great need of B. on great need of C. in great need with D. on great need with ( ) 8. Your room is full of dust. It ________ A. need clean B. need cleaning C. need to be cleaned D. needs to be cleaned ( ) 9. ________David________ anything to drink? A. Need,…\ B. Needs,…\ C. Does… need D. Do… need ( ) 10. You ______ to the meeting tomorrow if you have something important to do. A. needn’t to come B. don’t need come C. don’t need coming D. needn’t come

need的三种用法,如needtodosth

need的三种用法,如needtodosth need”作为情态动词的用法 一、need表示“需要”或“必须”,通常用于否定句,疑问句,条件句.例如:1.You needn't do it again.你不需要重复做 了.2.He needn't worry about it.这件事他无需担心.3.Need he do this homework first?他需要先做这些作业吗?4.Need they fill in the form?他们需要填表吗?二、在否定句中,可以用need的否定形式+不定式完成体.例如:1.We needn't have worried.其实我们不必要慌.2.You needn't have mentioned it.你本来不必提起这件事.3.You needn't have said that when he asked.当他问的时候,你其实不必要说.三、needn't后的不定式间或也能用进行式或被动语态.例如:1.He needn't be standing in the rain.他不必要站在雨中.2.We needn't be waiting in this place.我们不必要在这儿等.3.The hedges needn't be trimmed thisweek.本周树蓠不必要整修.四、其一般疑问句的答语,肯定用must,否定用needn't.Need I go with her?我需要和他一起去吗?Yes,you must.是的,你需要去.No,you needn't.不,你不必去. 编辑本段“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 例如:The room needs cleaning = The room needs to

needmust用法及练习完整版

n e e d m u s t用法及练习集团标准化办公室:[VV986T-J682P28-JP266L8-68PNN]

need用法 一.用作实义动词 1.need sth. 这是need最常见的用法之一,其后的宾语可以是名词,也可以是代词。如: 1). The soup need s salt. 2). They don’t need afraid any more. 3). Does he need any help 2.need doing 与 need to be done 通常物做主语,need后面可跟动名词作宾语,这种情况下应注意两点: ①.主动形式的动名词doing具有被动的含义; ②.该动名词可以改为其动词不定式的被动形式而句子的意义不变。例如: 4). The door needs painting. = The door needs to be painted. 5). Your car needs repairing. = Your car needs to be repaired. 3.need to do sth. 作为实义动词,need后面需要接带to的动词不定式,表示有义务或责任去做某事。如: 6). What do we need to take for the party 7). Will we need to show our ID card 8). I need to take good care of my sister. 二.用作情态动词 ①.没有人称和数的变化。不论主语是第几人称,不论主语是单数还是复数,情态都词都无形式变化; ②.不能单独充当谓语。情态动词必须与一个实义动词一起构成复合谓语,并且这个实意动词要始终是动词原形。 ③.变为否定句时只需在情态动词之后加not。 9).You needn't do it again.10).He needn't worry about it. ④.变为疑问句时只需将情态动词提到主语的前面。例如: 11). Need I type this letter again 12)—Need I stay here any longer —No, you needn’t. —Yes, you must. 三.用作名词 need作为名词,含义为“缺乏,需要”;其复数表示“基本需要”。要掌握两个词组:in (great) need of(急需)与meet the needs of(满足……的需要)。例如: 13). There’s no need for you to try again. 14). The factory is in great need of funds. “need+have+done”表示本来需要做某事而没有做。“needn't+have+done”则表示“本来不需要做某事而做了”。 I needn't have bought so much wine—only five people came. He need have hurried to the station. In that case, be wouldn't have missed the train. you need not have said that “should+have+done”意思是“本来应该做某事,而实际没做。” “shouldn't+have+done”表示本来不应该做某事,而实际做了。含有指责对方或自责的含意。 1. Tom, you are too lazy. The work should have been finished yesterday. 2. Look, Tom is crying. I shouldn't have been so harsh on him. 3 you should have told me “must+have+done”表示对过去事情的肯定推测,译成“一定做过某事”,该结构只用于肯定句。 1. It must have rained last night, for the ground is wet. 2. You must have been mad to speak to the servant.

can的用法及练习

情态动词.can 的用法: 一、简介 1、结构:can + 动词原形,没有人称和数的变化。 2、否定形式:cannot/can’ t, cannot比缩略形式can’ t要正式。口语中一般用缩略形式。 例如:I can swim. Daming can ride a bike. He can’t drive a car. 二、用法 1、表示能力(体力、知识、技能等),此时可用be able to代替。 例如:Mary can speak three languages. 玛丽会说三种语言。 = Mary is able to speak three languages. 注意:(1)can只有一般现在时和一般过去式;而be able to则有更多的时态。 例如:I’ll not be able to come this afternoon. 今天下午我将会来。 (2)当表示“经过努力才得以做成功某事”时应用be able to,不能用can。 例如:He was able to go to the party yesterday evening in spite of the heavy rain. 尽管很大雨,他昨天能来参加聚会。 2、表示请求和允许。 例如:---Can I go now? --- Yes, you can. / No, you cannot/can’t. 此时可与may互换。在疑问句中还可用could, might(不可用于肯定句、否定句或答语)代替,不是过去式,只是语气更委婉。 例如:--- Could I come to see you tomorrow? --- Yes, you can. ( No, I’m afrai d not. ) 3、表示可能性猜测。 例如:The man over there can′t be my uncle. My uncle has gone to Beijing. 那个人不可能是我的叔叔。我的叔叔去北京了。 三、练习题 ( )1.---Susan’s parents have bought a large house with a swimming pool.

need用法解析

need用法解析一.用作实义动词 作为实义动词,need后面的宾语可以是名词、动名词、动词不定式或代词,这种情况下,need既可用于肯定句,也可用于否定句和疑问句,构成否定句和疑问句时要借助于助动词do或does. 1.need sth.(表示“需要”或“必须”) 这是need最常见的用法之一,其后的宾语可以是名词,也可以是代词。如: 1). We need a great deal of money now. 我们需要很多钱。 2). They don’t it any more. 他们不再需要它了。 3). Does your father need any help? 你爸爸需要帮助吗? 2.need doing 与need to be done need后面可跟动名词作宾语,这种情况下应注意两点: ①.主动形式的动名词doing具有被动的含义; ②.该动名词可以改为其动词不定式的被动形式而句子的意义不变。例如: 4). The door needs painting. = The door needs to be painted. 那扇门需要油漆一下。 5). Your car needs mending. = Your car needs to be repaired. 你的车需要维修了。 3.need to do sth. 作为实义动词,need后面需要接带to的动词不定式,表示有义务或责任去做某事。如: 6). What do we need to take for the picnic? 野餐我们需要带些什么? 7). Will we need to show our passports? 我们需要出示护照吗? 8). You need to take good care of your mother. 你要好好照料你妈妈。 二.用作情态动词 作为情态动词的need具有情态动词的一般性质,要充分阐释作为情态动词的need的用法,务必首先说明白情态动词的特征。情态动词的主要特征: ①.没有人称和数的变化。不论主语是第几人称,不论主语是单数还是复数,情态都词都无形式变化; ②.不能单独充当谓语。情态动词必须与一个实义动词一起构成复合谓语,并且

相关文档