在UKiset语法中，介词和连词是常常会出现的考点和难点，所以在备考中还是需要考生们认真备考和复习。为了帮助大家更好的复习UKiset语法，提高UKiset考试成绩，下面小编就为大家全面介绍as的用法！
一、介词as
1.好像
They entered the building disguised as cleaners.
他们伪装成清洁工进入了大楼。
2.作为；当作
I respect him as a writer and as a man.
我尊重他这位作家，也尊重他这个人。
二、副词as
1.与……等同；和……一样。用于句型as……as，
This dress is twice as expensive as that.
这件裙子比那件贵一倍。
He recited as much of the poem as he could remember.
他把诗中记得住的都背了出来。
2.像；如
As before he remained unmoved.
他像往常一样无动于衷。
三、连词as
1.在……期间；当……时
As he grew older, he lost interest in everything, except gardening.
随着年纪越来越大，他对一切都失去了兴趣，除了园艺。
2.因为
As he's been ill perhaps she;ll need some help.
她由于生病可能需要些帮助。
3.尽管；虽然
Young as I am, I already know what career I want to follow.
我虽然还小，可是对想要从事的职业早已胸有成竹了。
4.以……的方式；按照
Why didn't you catch the last bus as I told you to?
你怎么不听我的话赶上末班车呢？
5.为……之事实；正如
Cyprus, as you know, is an island in the Mediterranean.
如你所知，塞浦路斯是地中海的一个岛国。
6.也一样（通常后接be或do+主语）
He's a doctor, as was his wife before she had children.
他是医生，他妻子生孩子之前也当过医生。
四、固定搭配
1.as for sb.至于
As for the hotel, it was very uncomfortable and miles from the sea.
至于旅馆呢，非常不舒服，而且离海边还远。
2.as to sb./ sth.至于
As to correcting our homework, the teacher always makes us do it ourselves.
谈到批改我们的作业，老师总是让我们自己改。
3.as if / though 似乎；好像
He behaved as if nothing had happened.
他装作若无其事的样子。
4.as it is 照现状看；看样子
We were hoping to have a holiday next week, as it is, we may not be able to get away.
我们原本盼望着下周放假，看样子走不了了。
五、辨析
1.when / while / as
三者都可以引导时间状语从句，翻译成“当……时”。大多数情况下都可以互换。when没有具体要求，时间点和时间段都可以；while只能用于时间段；as更多了一个“随着”的意思，可以表达“一边……一边……”。
When my mother came into the house, she found me lying there awake.
当妈妈走进家门时，发现我正在那睁着眼躺着。
While we were talking happily, the teacher came in.
我们正谈着开心，老师走了进来。
The little girl sang as she went.
这个小女孩边走边唱。
2.because / for / since / as
这几个都接从句，表示因为，具体区别可以参照之前的文章提到“因为”只知道because?盘点其他不熟悉的表达方式，助力写作
3.although / as
这两个都可以引导让步状语从句，但是as要进行倒装。
Although he is young, he knows a lot.
=Young as he is, he knows a lot.
虽然他很小，但是他知道的很多。
4.as for / as to
两者都可以表示“至于”。as for 更倾向于比较性，两者有一定的对比。有时可以包含说话人的一种轻蔑、冷淡、不屑、甚至是厌恶之感；as to更倾向于客观陈述，谈话的内容大家都有所了解。
You can have a bed; as for him, he'll have to sleep on the floor.
你可以有张床，至于他嘛，打地铺去吧。
As to your ability to overfulfil the target, I never had the slightest doubt.
关于你超额完成目标的能力，我从未怀疑过。
关于UKiset语法as的用法就为大家介绍到这里了，希望大家能够好好复习，提高备考能力，并且小编建议大家要好好积累词汇，这样才能顺利通过考试，如果还想了解更多关于UKiset测试真题、UKiset考试报名网的信息，可以在线咨询我们或添加客服微信kewo11！