As+形容词或副词+aspossibe,意思是"尽可能……的"。例句:We have to run as fast as possible.我们得尽可能快的跑。(fast属于副词)
1. as soon as
意思是"一......就......",引导一个时间状语从句。如:I'll call you as soon as I finish my homework. 我一完成我的作业,就给你打电话。
2. as long as
意思是"长达......之久;只要......"。如:She has searched the information about dinosaurs on the Internet as long as three hours. 她在因特网上搜索有关恐龙的信息已经长达三个小时。
3. as much as
意思是"高达......;与......一样多"。是用来表达极其多的语气。如:Some of the stones weigh as much as fifteen tons.有些石头重达15吨。
as...as用法:
as...as意为"和……一样",表示同级的比较。使用时要注意第一个as为副词,第二个as为连词。其基本结构为:as+adj./adv.+as。
1.mean to do和doing的区别 mean有哪些用法