69 as early as，as much…as和twice as…as
◎ as…as并不仅仅表示同等比较，它还有其他多种用法。
① as+副词原级+as表示“尽可能……地”，这种结构强调的是副词，指同一人尽可能地做某事，不是两者的比较。
He ran as fast as he could. 他尽可能快地跑。
I'll return as early as possible. 我将尽早返回。
I want to see her as soon as possible. 我要尽早见到她。
② as many+复数名词+as和as much+不可数名词+as表示“尽可能多的……，同……一样多的”，这种结构强调的是名词。
You need to read as many books as possible. 你需要读尽可能多的书。
Please lend me as much money as you can. 请尽可能多地借钱给我。
I have as many books as you have. 我的书同你的书一样多。
I haven't got as much money as I need. 我没有所需要的那么多钱。
The manager has had as many people as he needs.经理已经请够了他所需要的人。
③ as+many（名词）+as和as+much（名词）+as结构中的 many和much 是名词，指某事，表示“尽可能多的某物，同……一样多的某物”。
比较
Please take as many as you can. 请尽可能多的带上。（many作名词）
Please take as many books as you can. 请尽可能多的带上书。（many作形容词）
He drank as much as he could. 他尽兴地喝。（much 作名词）
He drank as much wine as he could. 他尽兴地喝酒。（much 作形容词）
He didn't get as much as he expected. 他没有得到所期望的那么多。（much作名词）
He didn't get as much money as he expected. 他没有得到所期望的那么多钱。
④ as…as结构前可以加数词，表示倍数或数量，如twice，six times，half，a quarter，three-fourths等。
This mountain is twice as high as that one. 这座山比那座山高一倍。
He has five times as many books as I. 他的书比我的书多四倍。
The road is not half as long as expected. 这条路没有所预料的一半长。
This hospital has got two-thirds as many doctors as it needs. 这所医院现在的医生人数是所需要的三分之二。
⑤ as…as前面可用almost，nearly，exactly，just，nothing like 等修饰。
She is nearly as tall as her mother. 她几乎同她母亲一样高。
This book is exactly as thick as that one. 这本书同那本书刚好一样厚。
Your handwriting is every bit as good as his. 你的书法同他的一样好。
He is nothing like as modest as he used to be. 他不像以前那样谦逊了。
⑥ as+形容词/副词+as+形容词/副词表示“既……又”。
The boy is as honest as clever. 这男孩既聪明又诚实。
The water in the lake is as clean as clear. 这湖水既清澈又干净。
He paints as beautifully as quickly. 他画得又快又好。
⑦ as…as构成的惯用语很多。
as well as 和
as long as 只要
as soon as 一……就
as tame as a chicken 非常听话
as good as one's word 一诺千金
as sure as death 千真万确
as hungry as a wolf 饥肠辘辘
as large as life 栩栩如生
as stubborn as a mule 固执己见
as like as two pears 一模一样
as thin as a lath 骨瘦如柴
as drunk as a sow 烂醉如泥
