问一个GMAT官网下的题库的题！！！在CD上搜不到，坐等求解！！

jingyuaner

in order to conserve the energy and heat they need to spend the entire winter sitting motionless over incubating eggs, male emperor penguins huddle over the nests in groups, thereby reducing the rate at which they burn energy so that it is 25 percent lower than it would be for isolated birds.

A. thereby reducing the rate at which they burn energy so that it is 25 percent lower than it would be for
B. thereby reducing their rate of burning energy until it is 25 percent lower when compared with
C. and they thereby reduce by 25 percent the rate they burn energy, as compared to what it would be with
D. which thereby reduces by 25 percent their rate of burning energy, when comparing them to
E. which thereby reduces the rate they burn energy so that is 25 percent lower than





求各位大神讨论解答

吴下锕蒙

A 吧      

jingyuaner

不能没人理啊！-。-

jingyuaner

吴下锕蒙 发表于 2013-8-16 08:39
A 吧

求解释啊

吴下锕蒙

in order to conserve the energy and heat they need to spend the entire winter sitting motionless over incubating eggs, male emperor penguins huddle over the nests in groups, thereby reducing the rate at which they burn energy so that it is 25 percent lower than it would be for isolated birds.

A. thereby reducing the rate at which they burn energy so that it is 25 percent lower than it would be for
B. thereby reducing their rate of burning energy until it is 25 percent lower when compared with
C. and they thereby reduce by 25 percent the rate they burn energy, as compared to what it would be with
D. which thereby reduces by 25 percent their rate of burning energy, when comparing them to
E. which thereby reduces the rate they burn energy so that is 25 percent lower than

从前半句可以看出 they指代的是penguins  ； Manhattan有提到，一句话中，若出现多个they/these，则必指代同样的事物；
所以C错了，C中  they reduce by 25 percent即penguins reduce....         而事实上reduce的主语应该是前面描述的这种方式 即huddle over the nests in group；

A中reducing现在分词表结果，很好地表达了是前面这种方式导致了后面的结果

B中their也是错的；而且B中lower与compared的搭配也错。lower一般和than搭配

C中the rate they burn energy这定语从句也错了，应该是A那样的the rate at which they burn energy；错的原因嘛 高中简单的语法 不说了

D E也不用说了 which一般只能指代前面紧邻which的词 而不能指代前面的句子


这道题 读完题干之后，瞄一眼选项 只有DE是which 很敏感的想是不是又是那经典错误？which指代groups，错
再看ABC     C用and连接两个并列的主句，无法表达前后因果关系
再看AB    B的their rate太蹩脚了

jingyuaner

吴下锕蒙 发表于 2013-8-16 12:45
in order to conserve the energy and heat they need to spend the entire winter sitting motionless ove ...

谢谢！

ambitious.wif.

感谢分享！