2015
高考英语重大版一轮复习题库：必修2 unit 4 （附解析答案） unit 4 wildlife protection ⅰ.单项填空 1．too much smoking and drinking________him greatly，which meant bad living habits had an________on his health. a．affect；effect b．affected；effect c．affected；effects d．affect；effects 解析 affect为及物动词“影响”；effect为名词。另外have an effect on为固定搭配，意为“对……有影响”，故选b项。
