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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
1、中心词排除：choice a,b: 主语是increase；choice d,e: 主语是usage。结合语意应该是increase造成负面影响，而不是usage造成负面影响——剩下AB
2、such as & like的区别：such as往往用于举例集合里的元素，I like fruit such as grapes and apples. like用于两个平级的名词，Like my brother, I ride a bicycle to school everyday.
换言之 like更多表类比，such as更多表举例
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