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）
as……as possible 中间填形容词，表示“尽可能。”例：as soon as possible尽快。If you like them。please have as much as possible.如果你喜欢，就尽量多吃点。Please read the text as loudly as pssible.Sorry .I have a sore throat.请尽可能大声朗读这简课文。对不起，我喉咙痛。中文里“尽量、尽可能”就是用这个句型表达。
as……as possible基本用法，as……as用于比较句型，中间插入的是形容词或副词的原级。意思是"达到与什么相同的程度"。如：He is as strong as a horse. 他力大如牛。习惯用法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。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. 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。
