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题库 / Prep2007E1-SC-124
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.
an increase in their use can create serious environmental problems such as water pollution, and their substitution for more traditional fertilizers
an increase in their use can create serious environmental problems like water pollution, and if substituted for more traditional fertilizers, it
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
the increased usage of these fertilizers can create serious environmental problems such as water pollution, while if substituted for more traditional fertilizers, this substitution
the increased usage of these fertilizers can create serious environmental problems like water pollution, while their substitution for more traditional fertilizers
(A) 正确，such as用以举例;and连接并列的句子。
(B) 用like举例错误，应该用such as;it指代对象不清楚。
(C) 第一个they指代fertilizers作creat serious environmental problems的主语不符合逻辑及
，应该是fertilizers的增长引起环境问题，而不是fertilizers本身;第二个they指代对象不清楚。
(D) if substituted…, this substitution…的表达方式啰嗦不简洁;while表达了转折的含义，而
(E) 用like举例错误，应该用such as;while表达了转折的含义而原句中由and连接并列的句子，并 没有此含义。
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