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高中英语语法知识点:ask、at、as用法

 Hi老刘老师 2019-02-02

1ask 

ask for 要求,请求

ask sb.for sth.向(某人)请求(要求)……

She asked for some advice on how to learn English well.


2at

at表示速度、价格、利率

at a high/low price以高价/;低价;at 40 miles an hour 以每小时40英里的速度;at a high/low speed以高速/慢速;at an ordinary speed 以普通速度;at full/top speed以全速/高速;at a speed of ……速度。

“at+名词表示在进行,从事

at work 在工作;at table在吃饭;at play 在做游戏;at sea 出海;at university/college在上学;at night school在上夜校;at dinner/table在吃饭;at peace处于和平状态;at war在交战,在打仗

 

3as…as

as many as ……一样多/多达;as much as ……一样多/多达(注意:many指可数的量,much 指不可数词的量);as high as ……一样高/高达;as thick as ……一样厚/厚达;as long as 一样长/长达;as deep as 一样深/深达;as early as 一样早/早在……时候,如:

We have as many books as they.我们的书和他们的一样多。/The great fire burned down as many as twenty buildings.大火烧毁的大楼多达20座。


[应用]汉译英

新桥与旧桥一样长。/这种鱼可长到长达15英尺。

这座山和远处的另一座一样高。/这座山高达4000米。

Key:The new bridge is as long as the old one./The kind of fish can grow as long as 15 feet.

This mountain is as high as another one in the distance./This mountain is as high as 4,000 metres.

as…as possible:as…as one can尽可能地…….

I’ll come back as soon as possible.我尽可能地……

Get up as early as possible tomorrow morning. 明天早晨尽量早起。

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