求GWD两道题解释

genieli · 发表于 2010-1-10 15:56:39

GWD-TN4 17

Concerns about publichealth led to the construction between 1876 and 1904 of three separate sewersystems to serve metropolitan Boston
.

A. Concernsabout public health led to the construction between 1876 and 1904 of threeseparate sewer systems to serve

B. Concernsabout public health have led to the construction of three separate sewersystems between 1876 and 1904 to serve

C. Concernsabout public health have led between 1876 and 1904 to the construction of threeseparate sewer systems for serving

D. Therewere concerns about public health leading to the construction between 1876 and1904 of three separate sewer systems serving

E. Therewere concerns leading between 1876 and 1904 to the construction of threeseparate sewer systems for serving

我选的是B，现在我知道估计错在HAVE LED时态上

答案是A，可是CONSTRUCTION OF 3 SYSTEMS 中间用BTW 1876- 1904隔开了，这个用法很少见，是正确的ma ? 哪里还有其他的例子？

The greatest roadsystem built in the Americasprior to the arrival of Christopher Columbus was the Incan highway, which,over 2,500 miles long and extending from northern Ecuador through Peruto Southern Chile.

A. Columbus was the Incanhighway, which, over 2,500 miles long and extending
B. Columbus was the Incanhighway, over 2,500 miles in length, and extended
C. Columbus, the Incan highway,which was over 2,500 miles in length and extended
D. Columbus, the Incan highway,being over 2,500 miles in length, was extended
E. Columbus, the Incan highwaywas over 2,500 miles long, extending

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答案是E，我选的B，是不是错在AND EXTENDED 缺少主语，不是INDEPENDENT CLAUSE所以不能用AND 连接（只能做DEPENDENT CLAUSE ）
Thanks!

wynn123 · 发表于 2010-1-10 18:44:14

前一个是争议题，貌似最后答案是A，就是因为时态上正确，虽然中间的插入很怪
后一个B错的原因是因为extended的主语是the Incanhighway，所以应该用extending如E。另外E强调的是这个highway有2500miles长，符合逻辑意思，后面的extending是对这个长度的修饰和补充~
个人理解~

求GWD两道题解释

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