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补充说明: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。Therebe 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
这个prep中的解析,我觉得讲的也很好,就证明了为什么
the circulation is lower in a than that in b ,这里 that后面不需要助动词! |
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