求解几道语法题

sissi8466

1. Some anthropologists regard the early hominids' manner of walking as being less efficient than in modern human beings.    


(A) as being less efficient than in
(B) as less efficient than it is in
(C) as less efficient than that of
(D) to be less efficient than that of
(E) to have been less efficient than it is in


答案是C, 我想问下D的to do结构为什么不能选？as在这里做什么用的


2. Scientists believe that unlike the males of most species of moth, the male whistling moths of Nambung, Australia, call female moths to them by the use of acoustical signals, but not olfactory ones, and they attract their mates during the day, rather than at night.  
(A) by the use of acoustical signals, but not olfactory ones, and they attract
(B) by the use of acoustical signals instead of using olfactory ones, and attracting
(C) by using acoustical signals, not using olfactory ones, and by attracting
(D) using acoustical signals, rather than olfactory ones, and attract
(E) using acoustical signals, but not olfactory ones, and attracting


答案是D. 我想问下为什么不选C. and 不是要求结构平行吗，C的结构不是比更平行些吗？


3. The Chicago and Calumet Rivers originally flowed into the St. Lawrence by way of Lake Michigan, but having been redirected by constructing canals so that the water now empties into the Mississippi by way of the Illinois River.    


(A) Rivers originally flowed into the St. Lawrence by way of Lake Michigan, but having been redirected by constructing
(B) Rivers had originally flowed into the St. Lawrence by way of Lake Michigan, but they have been redirected by constructing
(C) Rivers, which originally flowed into the St. Lawrence by way of Lake Michigan but have been redirected by the construction of
(D) Rivers, originally flowing into the St. Lawrence by way of Lake Michigan, but having been redirected by the construction of
(E) Rivers, originally flowing into the St. Lawrence by way of Lake Michigan, have been redirected through the construction of


答案是E, 但是我觉得C挺符合逻辑的啊，我觉得要有个转折词来表现现在和以前不一样吧


4. Gone are the sharp edges and jutting planes of styles from former eras; instead, designers of everything from cars to computer monitors have adopted a cornerless style of smooth surfaces and curves that is more ergonomic, conforming to the shape of the body rather than flaunting shape for its own sake.


(A) more ergonomic, conforming to the shape of the body rather than flaunting shape
(B) more ergonomic, conformed to the body's shape and not to flaunting shape
(C) ergonomic, more conformed to the shape of the body and not to shape flaunted
(D) ergonomic, conforming more to the body's shape rather than shape flaunted
(E) ergonomic, conforming more to the shape of the body than flaunting shape


答案是A, 我不明白为什么选A, 请讲解下，我自己选的E,其实就没明白题目的意思，只是根据 more....than结构和看上去平行来选的
请各位大侠讲解下，谢谢！

lm5054

版主无比善良呀。。。

sissi8466

明白了，谢谢解答

毛毛carina

以后一贴问一两道题就好咯，太多题目看不过来~~

毛毛carina

1，regard …… to be……这种用法不对

2，attract 和call 平行，不是和use；另外D才是最符合平行的：attract和 call ，两个rather than

3，C的but have been redirected变成和originally flowed into 并列了，那主句就没有了谓语

4，翻译：http://forum.chasedream.com/GMAT_SC/thread-430757-1-1.html


(A)    正确，conforming… rather than flaunting…是现在分词作状语修饰前面的句子that is more
ergonomic。
(B)    用过去分词conformed表示被动，不符合逻辑意思；and后面的to shape...与to the shape of the
body并列对象错误。
(C) more位置改变，改变了原句意思；rather than连接对象不对称。
(D) more位置改变，改变了原句意思；and后面的to shape...与to the shape of the body并列对象错误。
(E) more位置改变，改变了原句意思；more…than错误搭配改变了原句意思。

sissi8466

,没人解答？