prep07-124,求赐教，谢谢你们

fyf19871214

Whereas the use of synthetic fertilizers has greatly expanded agricultural productivity in many partsof 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


答案是A，我错选了C，当时想C比A要对称一致呢。。。求解释求解释，谢谢各位

fyf19871214

but, hold on~
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 ...... 红色的不是主句么？

fyf19871214

你不能 看到  if。。and if ....就认为它好哈
这个句子是以whereas开头的哈， 是表示对比的哈， 你的答案代 ...
endless1990 发表于 2011-6-2 20:26

    对哦！！！天大的漏洞我居然忽略了，谢谢~

zhouyeying

C没有A简洁

endless1990

你不能 看到  if。。and if ....就认为它好哈
这个句子是以whereas开头的哈， 是表示对比的哈， 你的答案代入后就变为
whereas ..., if ,and if   这就不是一个句子了哈，因为都是从句  没有一个主句哈

myice

回复 2# suners


    好了

suners

C是一致，但是C太冗长了。