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1、given有哪些用用法1. 用作 give 的过去分词，引出过去分词短语作状语，意为“如果有”，“假定”等义，此时要注意其逻辑主语与句子主语保持一致，句子谓语是否用虚拟语气，要视句子的具体含义而定。如：Given time, theyll probably agree. 给以时间的话，他们可能会同意。（=If we give them time或If they are given time）Given more attention, the trees could have grown better. 要是对这些树多加注意，它们会长得更好。（=If the trees had been giv
2、en more attention, they could be grown better.)2. 在现代英语中可用作介词，后接名词或代词，意为“考虑到”或“鉴于”。如：Given their inexperience, theyve done a good job. 考虑到他们缺乏经验，这工作他们已干得很不错了。Given her interest in children, Im sure teaching is the right career for her. 鉴于她对小孩的兴趣，我敢肯定教书是她最适合的职业。注意，given 后也可接 that 从句。如上面两句也可以改为：Given
3、that theyre inexperienced, they have done a good job. Given that she is interested in children, Im sure teaching is the right career for her. 3. 用作形容词，意为“特定的”“一定的”“规定的”等，通常用作定语。如：The work must be done within the given time. 工作必须在规定时间内完成。They were to meet at a given time and place. 他们定了个特定时间和地点见面。比较下
4、面一句，given为过去分词，用作后置定语：The book given to him was an English novel. (= The book which was given to him was an English novel). 送给他的那本书是本英语小说。不用主语或宾语的as和than从句As和than可以引导没有主语或宾语代词（有点像as和than是关系代词）的从句。没有主语代词的从句主要用在正式文体中。Their marriage was as stormy as had been expected.他们的婚姻正如所预料的那样一波三折。（不能说as it had bee
5、n expected.）Annes going to join us, as was agreed last week.正如上周大家同意了的，安妮将加入到我们中间来。（不能说as it was agreed last week.）He worries more than is good for him.他担心过度，对他没有好处。（不能说 He worries more than it/what is good for him.）Dont lose your passport, as I did last year.别像我去年一样把你的护照丢了。（不能说 as I did it last yea
6、r）They sent more than I had ordered.他们送来的比我预定的要多。（不能说more than I had ordered it.）as can be中as的用法 asas can could be结构通常可译为“极其”“非常”“要多就多”。如：Both houses were as clean as could be. 两座房子都极其干净。A：What was the weather like on your holiday? 你度假时天气怎么样?B：It was as good as could be expected. 好得很。关于as.as 结构的几个句式
7、在讲到形容词比较级as.as 时，绝大多数讲的都是 as +形容词+ as 结构。例如：He is as handsome as his brother (is). 他和他哥哥一样英俊。Judy goes to the movies as often as Sara does. 朱迪像莎拉一样时常去看电影。Old John goes to sleep as easily as a baby does. 老约翰像婴儿一样容易入睡。He cannot run so/as fast as you. 他不能有你跑得那么快。但是，像上面那样的例子多了，就产生一个问题：不少学生都以为as .as 中间只有
8、形容词。实际上，在 as.as 结构中，还可以有其它的几个句式。1、 as 形容词+名词 as 句式这种结构在文章中也很常见，但很多学生不习惯。这里给几个例子，请大家仔细研究一下，提一点请大家注意，就是：形容词后面(包括many/much) 的名词有单数、有复数、有不可数。例如：This is as good an example as the other is. 这和另外一个一样是个好例子。He is as nice a boy as Peter (is). 他和彼得一样都是好男孩。The girls are as busy with their work as bees. 这些女孩子就跟蜜
9、蜂一样忙着工作。She has as many friends as Mary (does). 她和玛丽一样有许多朋友。He has as much money as John (does). 他和约翰一样有很多钱。I can carry as much paper as you can. 你能搬多少纸，我也能搬多少。2、as many as 与 as much as这两个比较的意思是“像一样多”，既可以把它们作为比较级看，也可以把它们看作是一个固定的词组。同样，在 .many/much. 后面可以插入名词，形成 as.many/much +名词.as 的句式。例如：(1) 作为固定词组来使用
10、的，相当于“那么多”。She has as many as seven sisters. 她的姊妹有七人之多。As many as 100 people were killed in the air crash. 这次空难中多达一百人丧生。I gave the beggar as much as 1,00 yen. 我给了这乞丐整整一百元。Building costs ran up to as much as $ 20 million. 建筑费用涨到高达两千万。类似的“长达”、“宽达”、“早在”等，也可以用这种结构表示。例如：I have been learning English (for)
11、 as long as 15 years. 我学英文已有十五年之久。He came home as late as two in the morning. 他迟至清晨两点才回家。I saw your brother as late as last week. 上个礼拜我还看到你哥哥。The river is as wide as 100 meters. 这条河宽达一百公尺。I mailed the letter as early as Friday. 我早在星期五就把信寄了。We walked as far as the railroad station. 我们走到火车站那样远的地方。(2)
12、作为比较级来使用的，后面可以插入名词，意思是“一样”。To eat too much is as much a bad thing as to eat nothing. 吃太多和什么都不吃同样是坏事。He is as much a member of the orchestra as Tom. 他和汤姆同样是管弦乐队的成员。Comets are just as much members of the suns family as (are) the other planets. 彗星和其他的行星同样是太阳家族的成员。as.as.结构用法讲解一、asas 结构的基本用法其基本意思为“与一样”，其
13、中的第一个as为副词，其后通常接形容词或副词(用原级)，第二个as可用作介词(后接名词或代词)或连词(后接从句)。使用时应注意以下几点：1. 在否定句中，第一个 as 也可换成 so：He doesnt study as so hard as his brother. 他学习不如他弟弟努力。2. 在该结构的两个as之间通常接形容词或副词的原级，但若涉及数量或程度，可用“as much+不可数名词+as”和“as many+可数名词复数+as”：Youve made as many mistakes as I have. 你犯的错误和我犯的一样多。I havent got as much mon
14、ey as I thought. 我不像原来想像的有那么多钱。其间接形容词时，有时该形容词还可修饰另一名词，但这个名词应带有不定冠词(注意词序)：She is as good a cook as her mother. 她和她妈妈一样是位好厨师。也可说：She is a cook as good as her mother.但不说：She is as a good cook as her mother. 或They are as good cooks as us. 二、关于第二个as的词性第二个as后接从句时，该as通常为连词，但有时这个as还充当其后从句的主语或宾语，此时该as实为关系代词。
15、如：I gave him as much as he could eat. 他能吃多少，我就给了他多少。Weve got food for as many people as want it. 我们的食物，无论多少人吃都够了。注：若第二个as用作连词引导一个表示将来意义的从句，则该从句可用现在时表示将来，也可直接使用将来时态。如：Well get there as soon as you do will. 你一到，我们就到。 三、asas结构的修饰语该结构根据情况可用使用以下修饰语：(not) nearly, almost, just, nothing like, exactly, not quite, half, one-ten, twice, three times, 30 per cent等，并且这些修饰语必须置于第一个as之前，而不能置于其后。如：He doesnt play half as well as his sister. 他演奏的水平不及他姐姐的一半。This dress is twice as expensive as that. 这件连衣裙比那件贵一倍。 四、asas结构的省略在非正式场合(尤其是美国英语中)，有时
