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以下便是辛达雅思代报小编为我们整理的雅思长难句句式剖析之同级比较结构。希望对各位考生的备考有所协助：

2 同级比较结构

2.1原级比较结构出现含有“as…as…”的结构中。

He is as handsome as David is handsome.

比副副连引导的状语从句

该状语从句润饰比较副词as，状语从句的结构和主干完全相同。

和一般比较结构类似，该句话也能够省略，只是比较的目标要保持一致。

Heis as handsome as David.

8.2.2 as从句和than从句都能够选用倒装

尤其是as或than从句之后有定语从句时，为了便利就近润饰，可选用倒装。

Heis as prudent as David is, who is one of my favorite friends.

改为:

He is as prudent as is David, who is one ofmy favorite friends.

He is more prudent than David is, who isone of my favorite friends.

改为:

He is more prudent than is David, who isone of my favorite friends.

2.3 “as…as…”能够用于肯定或否定句， “so…as…”则只能用于否定句

He is as polite as David.

He is not as polite as David.

He is not so polite as David.

他不像大卫那么有礼貌。

2.4 几种常见的含有“as…as…”结构的短语

1) as…as possible = as…as one can，即“尽可能地…”

You must work as hard as you can work hard. =

You must work as hard as you can.

同理：as possible为asit is/was possible简化而成，it是代词，代替前面相同的部分。

Youmust work as hard as it is possible. =

Youmust work as hard as working hard is possible. =

动名词作主语

Youmust work as hard as possible.

2）as…as any  与任何人相同

Heis as happy a man as any. =

Heis as happy a man as any is happy.

他和其他任何人相同快乐。

3）as…as ever  与平常相同

Sheis as young as ever. =

Sheis as young as she was young ever.

她和以前相同年青。

这几条都是和一般比较级相同，省略了重复的部分，把没有重复的部分保留而成。

小编找到的是作者的一些见解，希望可以为考生们寻找到最好得分方式，也希望对大家有所帮助。最后，希望广大考生们在备考过程中提升自己的语言水平，取得更好的成绩。

有需要代报考位的同学们，可以直接联系我们，辛达雅思代报竭诚为您服务。(*^__^*)