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as...as...的用法总结

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as...as...的用法其实很简单 ,快来一起学习吧。下面小编就和大家分享,来欣赏一下吧。

as...as...的用法其实很简单

as是英语中用得比较多的一个词,也是很多小伙伴反映较难掌握的一个词。as的词性较多,用法也较复杂,我们今天先讲一下很常用的as...as...的用法

as...as...的基本意思为“与……一样”,"像...一样的"。例如:

The tree is as tall as the building(is). 这棵树和那栋楼一样高。

其中的第一个as为副词,其后通常接形容词或副词(用原级) ,第二个as可用作连词(后接从句)。

as...as...的用法

1

基本用法:

虽然都是as...as...但在不同的语境下,意思也不同。例如:

1.表示不同人或物同一性质的比较,意为“……和……一样……"

Michael is as bright as George(is). 迈克尔和乔治一样聪明。

2. 表示同一个人或物不同性质的比较,意为“既……又……”

Alice works as happily as(she)plays(happily). 艾丽丝愉快地工作,尽情地玩。

3. 用于表示两个人或物不同性质的比较,表示程度相同或相当,意为“……且/而……”。

He was as handsome as his wife was beautiful. 他长得非常英俊,他的妻子也长得非常漂亮。

He was as experienced as his brother was green. 他经验丰富,而他兄弟却涉世未深。

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 doesn’t 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” :

You’ve made as many mistakes as I have. 你犯的错误和我犯的一样多。

I haven’t got as much money 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 acook as her mother. 她和她妈妈一样是位好厨师。

(√) She is a cook as good as her mother.

(×) She is as a good cook as her mother.

2

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 。如:

I gave him as much as he could eat. 他能吃多少,我就给了他多少。

We’ve 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:

We’ll get there as soon as you do (will). 你一到,我们就到。

3

as…as…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 doesn’t 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。

4

as...as...结构的省略:

在非正式场合(尤其是美国英语中),有时可以省略第一个as 。如:

When over forty, he married a woman poor as himself. 他在40多岁时娶了一个像他本人一样穷的女人。

另外,若意思明确,有时可省略第二个as及其后的相关词语 。如:

The pianos in that shop will be cheaper, but not as good. 那家商店的收音机会便宜些,但质量没那么好。

小学英语重点语法:have的用法

动词have,基本的涵义是“有”,强调“所属关系”,表示“拥有”。如:

I have a computer.我有一台电脑。

但有些同学一见到我就译成“有”,那你就大错而特错了,其实我的用法除意为“有”之外,还有不少其它涵义呢。请看:

1.作“买”讲。如:

I want to have a kilo of meat.我想买一公斤肉。

2.作“用;作用;借用”讲,如:

Excuse me, may I have your pen?打扰了,我可以用用你的钢笔吗?

3.我加上表示食品、饮料等名词,意为“吃;喝”=(eat,drink)。如:

I have /eat an egg for breakfast.我早餐吃一个鸡蛋。

4.在我后面加上表示某种活动的名词,意为“举行;进行”。如:

The students are having a class.学生们在上课。

5.我还可作“邀请;招待”讲。如:

Thank you for having me.感谢你们邀请我。

6.我善交朋友,还可与其它词构成一些常见的固定搭配。如:

have a rest休息一会儿,have a good time过得愉快,have a look,看一看,have a talk交谈, have a meeting开会等等。

第三人称单数不是在词尾直接加s (haves ),而是has,have和has在否定句、疑问句中,要借助助动词do, does构成疑问句,借助don't, doesn't构成否定句。并把has还原成have。 如: Lily has some red pencils.

(否定句)Lily doesn't have any red pencils.

(疑问句)Does Lily have any red pencils?

have的否定句、疑问句也可以不借助于助动词,而直接在have和has后

加not构成否定句或将have和has提到句首构成疑问句。不过这种变法

只有have和has作“有”讲时才能用,千万别变错呀!如:

1. I have an eraser.

(否定句)I haven't an eraser. (疑问句)Do you have an eraser?

2. We have lunch at school.

误:We have not lunch at school. 正:We don't have lunch at school.

一分钟学会:what和which用法区别

What vs Which

what和which有何不同?

Hello again, everyone. Tom here for BBC Learning English. Today, I'm going to explain the difference between what and which in questions.

大家好,我是汤姆,又见面了。今天,我们来学习疑问句中的what和which有什么不同。

What is used to ask a question which has a lot of possible answers.

what 用于表示有很多种潜在答案的疑问句中。

Consider the question:

想想这个问题:

What do you want to eat for lunch?

你中午想吃什么?

Here, there are no choices to limit your reply. You could choose anything you want.

看吧,这个问题的答案是没有限制的,你可以回答任意想吃的东西。

We use which when we have options to choose from.

which 用于选择性疑问句中。

So, here we have two choices- a sandwich and a melon.

那么我们有两个选择——一个三明治和一个甜瓜。

So I can say:

我可以说:

Which do you want to eat? The sandwich or the melon?

三明治和甜瓜,你想吃哪个?

Now, next time you need to ask a question, you'll know which word to use.What for anything and which when you have a choice.

现在,大家都知道用哪个词去问问题了吧。有多种答案用what ,选择性疑问用which 。

also,as well,too,either原来是这样用的!!

一、Also

also是用在肯定句里面,它表示的是两个人干了同样的事,或者两件事是同一个人干的,also一般是位于be动词,助动词,情态动词的后面,但在行动词的前面。比如像:

He has been to Beijing. I have also been there.

He is good at English. He is also good at Japanese.

不过不也有一种特殊情况,那就是在表示强调的时候,also也是可以放在be动词,助动词,情态动词的前面。比如像:

I can also do it.

I also can do it.

二、As well

这个一般在口语中用的比较多,也是用于肯定句,和too可以进行互换,通常是位于句末。比如像:

She not only sings,

She plays the piano as well.

三、Too

Too和as well的用法基本一样,它比also会更加的通俗易懂,和also,as well都可以进行相互的替换,可以放在句子的中间,也可以放在句末位置。比如像:

Xiao Li went to Beijing and Xiao Zhao, too, went to Beijing.

He studies hard and I study hard, too.

四、Either

这个与前面三个不太一样,它是用在否定句里面的,并且还只能放在句末。比如像:

He didn 't know it. I didn' t know it either.

I can't speak French and can't write it, either.

当然以上这些词的用法也不是绝对的,在含有责备,抱怨或者是规劝类的句子里面,如果句子本身是用否定的形式表达肯定的意义的时候也是要用too的,而不是用either。不过这一类的句子一般都是可以改为肯定的形式的,只是语气上会有变化,改的话可以用should,had better,would rather等都是可以的。而在表示建议或者是邀请的句子里面,如果句子是否定的形式,肯定的意义,也是要用too而不是用either。当然这一类的句子也是可以改成肯定的形式的。

在反问疑问句里面,如果肯定句是肯定式,但是否定式的追加问号却不影响整个句子的肯定意义,那么在主体句子里面就要用too,而不能够用either。像:She?went?to?see?her?last?Sunday?too,?didn’t?she?在这个句子中,did't she?相当于:Did she go to see her last Sunday too?而在具有否定意义的否定句里面,否定词的前面也使用too而不能用either。不过这一类的句子,更常用not ether的结构来表达。比如像:He did not come, and she too did not come.相当于:He did not come, and she did not come either.

在有就是too虽然是在否定词的后面,但是否定词仅仅是否定某个词或者是片语,而不影响整个句子的肯定意义的时候,一般也是用too而不是用either。比如像:No worries and a comfortable place to sleep in are important, too.

在使用的时候,如果 as well as用作连词引出比较从句,其义为“和…一样好”.那么它的重点在A而不在B,比如像:He speaks Spanish as well as English.应译作:他说西班牙语像说英语一样好。语意的重点依旧在前部,不在后半部。当然,有时候as well as也会表示“像…一样”的涵义,比如像:She as well as you is an English teacher.


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