英语学习中，有很多as...as...的用法，比如之前我们介绍忙碌的相关表达时，会说“as busy as a bee”，说某事很简单、很容易的时候，会说“as easy as ABC”，很穷的时候，会形容说“as poor as a church mouse”，那如何很好的使用as...as...，是很多小伙伴都头疼的问题，下面我们就这个问题来一起探讨下。
（1）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。其基本用法为as+ adj./ adv. +as…。
例句：This film is as interesting as that one (is).
这部电影和那部电影一样有趣。
Your pen writes as smoothly as mine (does).
你的钢笔书写起来和我的一样流畅。
（2）其否定式为not as/so +adj./ adv. +as…结构。
This dictionary is not as/so useful as you think it is.
这部字典不如你想象的那样有用。
（3）若有修饰成分，如twice, three times, half, a quarter等，则其必须置于第一个as之前。
例句：She isn"t going out with a man who is twice as old as she.
她不打算和一个比她大一倍的人出去散步。
下面再说几个关于as…as…的固定句型，大家注意区分：
（1）as…as possible/can：尽可能的
例句：Please answer my question as soon as possible.
请尽快回答我的问题。
（2）as…as usual/before：像以前一样……
例句：She looks as pretty as before.
她看起来和以前一样漂亮。
（3）as long as：达……之久；和……一样长；只要（引导条件状语从句）
例句：It took us as long as three years to carry out the plan.
我们花了长达三年时间才完成这项计划。
This rope is as long as that one.
这条绳子和那条一样长。
（4）as far as：远至；就……而论，据……
例句：He walked as far as the railway station yesterday evening.
昨天傍晚，他一直散步到火车站。
As/So far as I know, the library won"t open until eight o"clock.
据我所知，图书馆要到八点钟才开门。
（5）as well as：和……一样好；也；既……又……；除……外，还……
例句：She sings as well as she plays.
她唱得好，弹得也好。
The child is lively as well as healthy.
这孩子既健康又活泼。
Tom, as well as his brothers, enjoys playing football.
汤姆和他的哥哥们都喜欢踢足球。
He gave me his help as well as his criticism.
他除了给我批评外，还给我帮助。（这时强调帮助）
最后，再继续为大家补充一些as…as…的常见短语希望大家喜欢。
1、as black as coal 像煤一样黑
例句：His face is as black as coal.
他的脸和炭一样黑。
2、as brave as a lion 像狮子一样勇敢
例句：He is as brave as a lion.
他勇如猛狮。
3、as firm as rock 像山岩一样坚定；坚如磐石
例句：The solidarity among China"s various nationalities is as firm as a rock.
中国各族人民之间的团结坚如磐石。
4、as free as a bird 像小鸟一样自由
例句：Now that I"ve got my divorce I feel as free as a bird.
由于我已经离婚，我觉得自由自在了。
5、as blind as a bat 像蝙蝠一样瞎
例句：He is as blind as a bat.
他双眼全是瞎的。
6、as hot as fire 像火一样热
例句：Graceful as winding stream, hot as fire.
飘逸似水，热情如火。
7、as light as a feather 像羽毛一样轻
例句：She is as light as a feather.
她轻得像羽毛。
好了，今天的内容暂时就介绍到这里了，不知大家都弄明白了没有？如果你还知道其他的与as有关的有趣表达，欢迎评论区留言。
