-Why was Mr. Zhang praised by the Education Department? - during the past 20 yea
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—Why was Mr. Zhang praised by the Education Department?
—________ during the past 20 years of teaching career.
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A．Because he has done
B．Because of what he has done
C．For he has done
D．Because that he has been working
试题答案
答案：B
解析：【巧解导析】A答案中do为及物动词，其后缺少宾语；C答案中for可作并列连词，连接两个并列分句表原因，但不可与why搭配使用，且done后缺少宾语；D答案中两个从属连词引导一个从句，在语法上是错误的，若去掉that则可选． |
【巧解点悟】because of相当于介词，其后接名词、代词或由what引导的名词性从句．because，because of常与why引起的问句搭配使用．另外thanks to，as a result of…与because of在意义和用法上相当．对于语言的学习我们既强调活学巧用，又要求触类旁通． |