PREP 语法新题，原笔记总结中无，请NN过来点一下思路

PREP新题： Due to poaching and increased cultivation in their native habitatsw, researchers have determined that there are fewer than 100 Arabian leopards left in the wild, and that these leopards are thus many times as rare as
                China’s giant pandas.

A. Due to poaching and increased cultivation in their native habitatsw, researchers have determined that there are fewer than 100 Arabian leopards left in the wild, and that these leopards are thus many times as rare as

B. Due to poaching and increased cultivation in their native habitatsw, there are fewer than 100 Arabian leopards left in the wild, researchers have determined, making them many times more rare than

C. There are fewer than 100 Arabian leopards left in the wild due to poaching and increased cultivation in their native habitats, researchers have determined, which makes the leopards many times more rare compared to

D. Researchers have determined that, because of being poached and increased cultivation in their native habitats, there are fewer than 100 Arabian leopards left in the wild, thus making them many more times as rare as

E. Researchers have determined that, because of poaching and increased cultivation in their native habitats, there are fewer than 100 Arabian leopards left in the wild, and that these leopards are thus many times more rare than

    ANS:E

   侥幸蒙对，但疑惑：E 中 because of poaching and increased cultivation 用法是否正确啊？

  A、B、C 中 due to + 动作性名词相对无效，偶好象没见过DUE TO 表原因是作过正确答案的。 且A 中their 指代错。B、C中句子后半部不完整，D中那个being 应该多余，只有答案E可选，而且E感觉流畅无比啊。

      原先笔记总结中有一题如下：在此题中 because of + doing  就错，为啥在上面的新题中就对呢？请NN指点一下DUE TO、BECAUSE OF、BECAUSE 用法啊？

    43. Paleontologist Stephen Jay Gould has argued that many biological traits are not the products of natural selection, favored due to their enhancement of reproduction or survival, but that they are simply random by-products of other evolutionary developments.

A due to their enhancement of reproduction or survival, but that they are

B due to the reproduction or survival they enhance, but they are

C because they enhance reproduction or survival, but

D because they enhance reproduction or survival, but are

E because of enhancing reproduction or survival, but are

A: due to + 动作名词不够有效；

B: 同上

C: but分句后面没有动词, 会让人产生和because they enhance … but …的歧义

D: correct

E: because of + doing 一定错

注意：

1、             due to，because of 都是连词because的迷惑选项

2、             but… 的对称有两种都语法说的通，通过补足助动词来区别

 because of poaching and increased cultivation in their native habitats,

感觉是(poaching and increased) cultivation  ,poaching and increased做定语修饰cultivation,poaching现在分词做定语

sorry !   Iawfy ,u are right!

I think apparently..poaching parallels with increased cultivation..

i want to ask for question 1..Correct answer E..

Does the "their" create any ambiguity?

their,应该没有指代模糊,逻辑上不可能是research,而从语法上也应该指代that 从句中的那个复数名词Arabian leopards

 Researchers have determined that, because of poaching and increased cultivation in their native habitats, there are fewer than 100 Arabian leopards left in the wild, and that these leopards are thus many times more rare than

请教:43题的D中的are not~~~but are~~~,是不是有不对称的嫌疑?

C的 not N,but N不是更对称么?

but后面的be 动词跟前面的are not 平行 ,not sth ,but sth ,而这里是sb are not sth but are adj(仅仅中间插入了什么东西而已)

跟下面一个题目一样,

114. From the bark of the paper birch tree the Menomini crafted a canoe about twenty feet long and two feet wide, with small ribs and rails of cedar, which could carry four persons or eight hundred pounds of baggage so light that a person could easily portage it around impeding rapids.

(A)  baggage so light

(B)   baggage being so light

(C)  baggage, yet being so light

(D)  baggage, and so light

baggage yet was so light

From the bark of the paper birch tree the Menomini crafted a canoe( about twenty feet long and two feet wide, with small ribs and rails of cedar,) which could carry four persons or eight hundred pounds of baggage yet was so light that a person could easily portage it around impeding rapids.

此题目的but 等同于yet 

which could carry four persons or eight hundred pounds of baggageyet (which ) was so light that a person could easily portage it around impeding rapids.