1．She's not strong enough________walkingup mountains.(2013,杭
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1.用作名词,表示“足够（的数目或数量）,没有复数形式,但根据情况可表示复数意义.如：Enough has been said of this problem.有关这个问题,已经谈得够多了.Enough were present to constitute a quorum.出席的人数够法定人数.2.用作形容词,通常修饰复数名词或不可数名词,可放在被修饰名词之前或之后（但以前置为多见）.如：He has enough money to buy a car.他有足够的钱买辆汽车.We have time enough to get to the airport.我们来得及赶到机场.有时与某些具有形容词意味的名词连用,此时 enough 必须后置,且该名词通常不用冠词.如：I was fool [=foolish] enough to accept his offer.我接受他的提议真是太傻了.3.用作副词,可用来修饰形容词、副词、动词等,此时总是放在被修饰语之后.如：You don’t relax enough.你休息不足.I wonder if it’s large enough.我不知道它是否够大.You’re not driving fast enough.你开车开得不够快.修饰形容词时要后置,即使被修饰的形容词后面修饰有名词也是如此.如：We haven’t got a big enough house.我们的房子不够大.He was a handsome enough child.他是一个非常帅气的孩子.但是,如果enough修饰整个名词词组,则置于形容词之前.比较：We haven’t got big enough nails.我们没有够大的钉子.We haven’t got enough big nails.我们没有足够多的大钉子.4.可用于某些副词之后对一情景进行评论.可以这样使用的词有curiously,funnily,interestingly,oddly,strangely,surprisingly等.如：Strangely enough,I won first prize.说来奇怪,我得了一等奖.Curiously enough,he seemed to know that already.说也奇怪,他似乎已经知道这事了.Interestingly enough,this proportion has not increased.说也有趣,这个比例并未增加.Oddly enough,we didn’t meet,although we were both there.真怪,我们没有碰面,虽然我们都在那里.5.在通常情况下,enough不能用作表语,除非其主语是代词或是那些具有（或暗示有）数量意义的名词.如：One such dictionary is enough.这样的词典一本就够了.Five men will be quite enough.5个人完全够了.I did all I could,but it wasn’t enough.我做了我能做的一切,但是还不够.比较下面的正误句子：误：The beer isn’t enough.啤酒不够.正：There isn’t enough beer.啤酒不够.误：Was the time enough?时间够吗?正：Did you have enough time?你们时间够吗?6.用于cannot...enough,表示“无论怎样……都不够”.如：I cannot thank you enough.You cannot be careful enough.你越仔细越好.I cannot say enough in praise of his work.我对他的工作赞扬不已,怎么说也不嫌过分.

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