英语词汇语法速记：as...as...表倍数用法

1、A is as...as B

A和B一样...

例句：

Some dinosaurs were as small as chickens. Others were as big as ten elephants.

有些恐龙跟鸡一样小，有些跟比十头大象一样大。

2、A is not as（或not so）...as B

A不如B...

例句：

Science is not so popular as Chinese.

自然科学没有汉语那样普及。

3、A is half（a quarter）as...as B

A是B的一半（四分之一）

例句：

This pencil is half as long as that one.

这支铅笔的长度是那只铅笔的一半。

My command of English is not half so good as yours.

我英语掌握得还不及你的一半儿好。

4、A is twice（three times、four times）as...as B

A是B的2（3、4）倍

例句：

Our room is twice as big as yours.

我们的房间是你们的两倍大。