求教GWD23中一道答案有疑问的题目

melodyflying

Q39P64
Whereas the use of synthetic fertilizers has greatly expanded agricultural productivity in many parts of the world, an increase in their use can create serious environmental problems such as water pollution, and their substitution for more traditional fertilizers may accelerate soil structure deterioration and soil erosion.

A.    an increase in their use can create serious environmental problems such as water pollution, and their substitution for more traditional fertilizers
B.    an increase in their use can create serious environmental problems like water pollution, and if substituted for more traditional fertilizers, it
C.    if these fertilizers are used increasingly, they can create serious environmental problems such as water pollution, and if used as substitutions for more traditional fertilizers, they
D.    the increased usage of these fertilizers can create serious environmental problems such as water pollution, while if substituted for more traditional fertilizers, this substitution
E.    the increased usage of these fertilizers can create serious environmental problems like water pollution, while their substitution for more traditional fertilizers

为啥选A，不选D啊。。。Whereas难道不要求前后对比要平行么？？？

EvaCheng

LZ说的没有错，Whereas确实要求前后平行，所以可以首先排除C。
接下来需要分析use和usage的区别：
use：an instance or way of employing or using something.强调方法。
usage:a customary way of doing something.强调惯用的习俗或者俗语。

所以排除DE。
接下来可以用简单的idiom排除like举例是不对的，所以答案是A。
其实D的句型也不对，Whereas A, B, while if的句型不知道究竟是谁和谁

在比较，另外不曾有印象看到while if连用的说。
选项A是一个由and连接的完全平行的句子，非常Beautiful。
an increase in their use vs their substitution for more

traditional fertilizers
can vs may
create serious environmental problems vs accelerate soil structure

deterioration and soil erosion

coloryao

看到while就应该把DE排除掉了
一句话里用逗号隔开的，又Whereas，又while的到底想说啥
见过一句话里既有though， 又有although的 ?

D是超级run-on sentences,一个句号里面没完没了地说,明显有问题。


另外,一句话里换词性说同一件事情:this substitution……
啰嗦得....只有两个词形容awkward & redundant

vakaka

D中用了while if…… ，这个结构很怪，而且use本来就能做名字，usage的意思和use不太一样

wanghongl

D中不管while if 是否合适，if substituted 的逻辑主语为后面的this substitution明显不合理，用fertilizer做逻辑主语合理。