求助！关于主系表结构比较和主谓宾结构比较的省略

wsyzzydy

做prep语法笔记的时候，笔记里说主系表结构的比较中，如果是主语比较，系动词要省略，那如果是主谓宾结构比较时，什么情况应省略，什么情况应补出呢？？

附一道主系表比较省略系动词的题目：
According to a survey ofgraduating medical students conducted by the Association of American MedicalColleges, minority graduates are nearly four times more likely than areother graduates in planning to practice in socioeconomically deprivedareas.

A.    minority graduates are nearly four times more likely than are othergraduates in planning to practice

B.    minority graduates are nearly four times more likely than othergraduates who plan on practicing
C.     minority graduates are nearly four times as likely as other graduates toplan on practicing
D.     it is nearly four timesmore likely that minority graduates rather than other graduates will plan topractice            (C)
E.    it is nearly four times as likely for minority graduates than othergraduates to plan to practice

wsyzzydy

发现白勇的语法书里有说道哈~和大家分享下。


as或than引导比较从句中的省略原则----form 白勇语法
1)    比较从句谓语与主句谓语相同，可用do，did，does代替。
2)    比较从句连系动词be与主句连系动词be相同，可以省略be，也可以不省略。
3)    主语谓语动词短语使用“助动词（如have，has，had，will）或情态动词（can，could，may，should）+verb”形式时，比较从句往往省略verb，保留助动词或情态动词。
4)    比较从句的主语和谓语与主句的主语和谓语相同时，可以全部省去，常常保留做状语的介词短语或状语从句。
5)    比较从句的主语与主句主语相同，可以省略。

wsyzzydy

再补充点哈~希望可以帮助一样有疑惑的CDers~


比较-主语比较
1.    对主谓宾全的句型主语比较：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）。时态要据后定。There be 句型等同于一般的主谓宾俱全的句型。
主语若相同，可省，但助动词不能省。如：
As a result of the continuing decline in the birth rate, [fewer people] will enter the labor force [in the 1980’s] than (few people省略)did [in the 1960’s and 1970’s], a twenty-year period during which people born after the war swelled the ranks of workers.
2.    对只有主谓（如果主语有定语成分，必须要that/those来指代），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GMAC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.    主系表结构的比较与主谓结构相同。如果时态不一致，则需补出助词，如：
The economy of Florida is more diversified than it was ten years ago

Virdeer

顶一下~感谢楼主分享

米粒MILI——

谢谢！