本文Manhattan语法中文笔记之常见的比较，文章中详细的为大家介绍了常见的比较词汇、比较原则及考察的重点、句型就结构。大家可以点击下载完整资料。
(一)常见的比较词汇
like vs as
1.Like 是一个介词，因此like后面只能跟名词(或者动名词作名次，如like swimming,skating is great exercise)， 代词或者名词短语。(不能跟从句/介词短语)
2.As 既可以跟介宾短语，又可以跟连词(后面可以跟句子)。
(1)表示列举的时候，只能用as,不能用like
(2)like+句子一定错!
(二)比较的两点重要规则
1.比较的对象具有同等逻辑意思。
Wrong: Frank's build, LIKE his brother, is broad and muscular.
Right: Frank's build, LIKE his brother's, is broad and muscular.
Right: Frank's build, LIKE that of his brother, is broad and muscular.
Right: Frank, LIKE his brother, has a broad and muscular build.
2.比较要从结构上保持平行
Wrong : I like to run through forests more than I enjoy walking through crowds.
Right: I like running through forests MORE THAN walking through crowds.
(三)比较重要考点
1.对主谓宾全的句型
(1) 主语比较： A do sth than B do.(AB为对等名词，加do 是为了显示这是一个可以发出动作的名词，因而确定是主语，进而确定是主语对比)
(2) 介宾比较 A do sth of C1 by D1 than of C2 by D2.(C1C2，D1D2对等名词)
注意一定要是介宾才能直接跟在than后面
The clothes inside the store looked more appealing than outside the racks.错,不是介宾比较
The clothes inside the store looked more appealing than did those outside the racks. 对
(3) 宾语比较 A do C1 than C2.(C1C2为对等名词)
(4) 状语比较A do sth than usual/ever before/people expected(直接加状语)
2.一种句型只有主谓，没有宾语的句子，因为没有宾语，只可能有主语比较，因而
不需要重复do来确认这是一个可发出动作的主语，所以其比较形式如下：
I eat faster than you.注意与下句区别
I eat apple faster than you do
如果写成 I eat apple faster than you 按ETS的理解，从语法上就变成我吃苹果比吃你快，成了宾语比较。逻辑上显然不通。
3.AS 族的比较大同小异，as 可单独引导比较，也可以复合成as many as, as hard as 等
形式，但ETS宗旨不变，如
Sand road costs twice as many to build as to maintain(类似于介宾比较)
Sand road costs twice as many to build as stone road do(主语比较)
Sand road costs the government twice as many to build as the residents.(宾语比较)
4.特殊句型
AS poor as they are, they cannot afford a car.
They have 800 million students, as many as have enrolled in our school.
5.There be 句型等同于一般的主谓宾俱全的句型OG89
There is one PC for every 32 pupils in American four times as many as there were four years
ago(主语比较)
There is one PC for every 32 pupils in American four times as many as DVD player(宾语比较)
There is one PC for every 32 pupils in American four times as many as for school teachers.(介宾比较)
There is one PC for every 32 pupils in American four time as many as in china(介宾比较)
6.比较结构的省略
(1)所有格省略
前句有明确说明所有物是什么东西，后句的就可以省略，用所有格表示。
P.S. 所有格/所有物可以代表单数和复数，只有逻辑意思合理就行。
EG: My car is bigger than Brian's [car}. My toes are longer than Brian's [toes}.
(2)比较从句可以省略宾语、谓语甚至整个从句，只要逻辑意思合理。
EG: Whereas I drink 2 quarts of milk a day, my friend drinks 3 [quarts}.
I walk faster than Brian [walks}.
I walk as fast now as [I walked] when I was younger.
(3)有些句子为了不造成歧义，需要添加动词和情态动词，以保持逻辑含义鲜明。
EG: Visual eats more carrots than donuts. (donuts必须为宾语才能省略)
Ambiguous: I like cheese more than Yvette. {Yvette could be subject or object.}
Right: I like cheese more than Yvette DOES. (=than Yvette likes cheese)
Right: I like cheese more than I DO Yvette. (= than I like Yvette)
总结：主语比较，新的主语+动词(或省略动词);介宾比较、宾语比较，直接放介宾和宾语即可。
(四)比较级与最高级OG 43
1.以ly结尾的副词的比较级是more +该副词，不要改成er形式
EG: Adam runs more quickly than Jones.(没有宾语，所以Jones后面省略does)
2.比较级中一定要有一个than
一个重要例子：
A cat cannot catch a wildebeest as fast as a cheetah. 错(有歧义)
A cat cannot catch a wildebeest that run as fast as a cheetah. (宾语的奔跑速度比较)
A cat cannot catch a wildebeest as fast as it catch a cheetah. (同一主语抓捕速度比较)
A cat cannot catch a wildebeest as fast as a cheetah can. (主语抓速度比较，补出情态动词can)
以上是网为大家分享的Manhattan语法中文笔记之常见的比较，希望能够对大家有一定的参考作用。
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