比较结构是具有特殊结构的平行结构，同时具有比较的对象以及被比较的对象。确保比较对象在结构以及逻辑层面平行并列而且还要注意到省略现象。所以比较在GMAT句子改错中考察的还是有一些难度的。那么今天小编就给大家介绍下GMAT句子改错之比较结构的内容。
一、常见标志词
Like/unlike(表示：像还是不像,用作介词)
Like VS as
(形容词/副词)比较级+than
As+(形容词/副词)+as
The same as different from
In contrast to/with(对比)
二、考点like VS as (表比较)
1、在表示比较的时候，like/unlike 用作介词，后面只能接名词，代词或者名词短语，不能接从句或者介词短语，如果出现了从句和介词短语就可以直接排除。表示比较两个事物。
2、AS用作连词，后面接句子，因此可以使用as接两个完整的句子表示比较，as用作比较两个动作。
》》点击了解GMAT语法比较as与like的区别解析
三、考点(形容词/副词)比较级+than
句子中没有than时不能使用比较级，当句子中有than时需要注意是否有形容词或副词的比较级。
例1：With winter coming,I will have higher energy bills.(错误)
改正：With winter coming,I will have higher energy bills than now.
例2：I will have higher bills over last year.
改正：I will have higher bills than last year.
四、倍数+as adj.(adv.)……as/the n./what……
例1：……women with less than a high school education were three times as likely to begin smoking as women who went to college.
例2：Africa’s black rhino population in the mid-1970’s numbered about 20000,ten times the estimated population of 2000in 1997.
》》点击了解GMAT语法比较结构知识点讲解
五、比较中的平行
1、结构平行-拥有相似的结构
例1：
I like to run through forests more than I enjoying walking through crowds.
改正：I like running through forests more than walking through crowds.(还有其他改法，但是一定要确保结构相似)
例2：
According to a study ,aspirin prevents blood clots just as well as a commonly used and more expensive blood-thinning drug dose.
这句正确，是个省略现象。
2、逻辑意义平行--比较对象有可比性
例1：
Frank’s build ,like his brother ,is brood and muscular.
改正1：Frank’s build ,like his brother’s ,is brood and muscular.
改正2：Frank,like his brother ,has a brood and muscular build.
例2：
Beethoven ‘s music,which broke a number of established rules with its structure and melodic form,is considered more revolutionary than Bach.
改正：Beethoven ‘s music,which broke a number of established rules with its structure and melodic form,is considered more revolutionary than Bach’s.
六：为了避免用词重复，可以使用that或those替代已经出现过的名词，如果是可数名词的单数或者是不可数名词，用that替代。如果不可数名词复数则用those替代。
例：
Frank’s build ,like that of his brother ,is brood and muscular.
Frank’s toes,like those of his brother ,are short and hairy.
七、省略现象：能省则省，但不能有歧义。
所有格名词：My car is bigger than Brian’s[car].
谓语动词：I walk faster than Brian[walks].
从句：I walk as fast as now as[I walked]when I was younger.
有时为了避免歧义，可以补出所省略的词或助动词(be,do,have)。
》》点击了解GMAT语法比较结构真题解析
例1：
Unlike a typical automobile loan,which requires a fifteen to twenty percent down payment ,the lease-loan buyer is not required to make an initial deposit an the new vehicle.
A. the lease-loan buyer is not required to make
B. with lease-loan buying there is no requirement of
C. lease-loan buyers are not required to make
D. for the lease-loan buyer there is no requirement of
E. a lease-loan does not require the buyer to make
要点：Unlike/ like A , B ….. A /B 要对等。(数的一致，逻辑意思的一致, 时态上的平行)比较时逻辑意思优先!
标志词：Unlike
比较对象：a typical automobile loan 和the lease-loan buyer不对等。一级排除A,B,C,D。答案是E.
例2：
Many teenagers undergo stress,but results of a recent study indicate that the patterns of stress that girls experience are more likely to result in depression than are those that boys experience.
(A) are those that boys experience
(B) what boys experience
(C) boys' experience would
(D) boys' stress patterns do
(E) stress patterns of boys
要点：有两个名词结构，所以需要补出。A are more..in X than are B，是A和B比较;如果不补出are，句子结构会变成A are more..in X than B，变成X和B比较
比较标志词：more likely
比较对象是划线部分
句子结构：the patterns of stress that girls experience are所以后面也应该是the patterns of stress that boys experience are，那么the patterns of stress that boys experience are还原省略之后用those代替the patterns of stress，定语从句不变，答案选择E.
例3：
According to a recent poll,owning and living in a freestanding house on its own land is still a goal of a majority of young adults,like that of earlier generations.
(A) like that of earlier generations
(B) as that for earlier generations
(C) just as earlier generations did
(D) as have earlier generations
(E) as it was of earlier generations
要点：Like接名词，名词短语，比较事物，as接句子。答案是E.
总结：解题方法第一先找到比较对象，第二就是先还原再省略。
以上就是对GMAT句子改错之比较结构的内容介绍，不知道考生通过上文的内容对GMAT语法有了解了吗?更多关于GMAT备考的资讯小编会持续为大家送上，大家也可以关注前程百利GMAT官网获取更多备考资讯，祝大家早日梦圆名校。
您还可能关注：
