一、as……as 比较句型的本质
e.g. I am as old as you.
句型一:A+系动词+as1+形容词+as2+B
(编者注:为方便区分,第一个as以as1来表示,第二个as以as2表示)
1.两个as的词性不同
as1是副词,其后可以接形容词或其他副词
as2是连词,其后接从句
2.as2后边省略了成分
I am as old as you are old.
3.B具体用什么形式取决于比较的对象
比较对象可以是主语、宾语、状语等成分,B的形式可以是代词、名词、名词短语或介词短语等。
句型二:A+系动词+as1+形容词+as2+B+系动词+形容词
As2前后的形容词不同时,不省去其后从句中的形容词
e.g.This room is as wide as that room is long.
句型三:A+系动词+as1+形容词1+as2+B+系动词+形容词2
What a table!I've never seen such a thing before.It is not half as wide as it is long.
这是什么桌子啊!我以前从来没有见过这样的桌子——其宽度还不到长度的一半。
The world's deepest cave,Pierre St.Martin in the Pyrenees Mountains is almost three times as deep as the Empire State Building is high.
世界上最深的山洞位于比利牛斯山脉的皮埃尔·圣马丁山上,其深度几乎是帝国大厦高度的三倍。
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