[求助]请教OG11 yellow, 69和71

洛阳总兵

69. A report by the American
                Academy for the Advancement of Science has concluded that much of the currently
            uncontrolled dioxins to which North Americans are
            exposed comes from the incineration of wastes.

(A)         much of the currently uncontrolled dioxins to which North Americans are exposed comes

(B)         much of the currently uncontrolled dioxins that North Americans are exposed to come

(C)        much of the dioxins that are currently uncontrolled and that North Americans are exposed to comes

(D)        many of the dioxins that are currently uncontrolled and North Americans are exposed to come

(E)         many of the currently uncontrolled dioxins to which North Americans are exposed come

answer is E, what's wrong with D??

 

 

71. The cameras of the Voyager II spacecraft detected six small, previously unseen moons circling Uranus, which
                doubles to 12 the number of satellites now known as
                    orbiting the distant planet.

(A)which doubles to 12 the number of satellites now known as orbiting

(B)doubling to 12 the number of satellites now known to orbit

(C)which doubles to 12 the number of satellites now known in orbit around

(D)doubling to 12 the number of satellites now known as orbiting

(E)which doubles to 12 the number of satellites now known that orbit

answer is B,why??

 

 

洛阳总兵

有谁来帮帮忙啊，要不就只好背答案了……死读书不求甚解

鬼舞者

69.D里的that are十分多余，dioxins后面可以直接跟修饰词了，再由that引导一个从句显得十分的罗嗦，而且这个句子是由and连接的，要用that就会引起一个平行，and后面也要由有that，这里没有，显然错了

71.ing分词的2个作用：一是前一个分句的整体对后面某一个对象的作用；二是两个同时发生的动作，这里显然是第一个作用，而且which的指待模糊，引起歧义

个人看法～

洛阳总兵

恩，有点儿明白了，体会中……多谢多谢：）

teaonly

那为什么用known to不用known as呢？ 感觉后面的用法比较熟悉啊。前面是固定用法吗