题目内容
6. ,many jobs,such as helping aeroplanes to land in bad weather,would not be possible today.( )A. | If radio were not invented | B. | If radio has not been invented | ||
C. | Had radio not invented | D. | Had radio not been invented |
分析 如果没有发明收音机,许多工作,例如帮助飞机在糟糕的天气里着陆,在今天将是不可能实现的.
解答 答案:D.
分析句子的结构可知,本句属于混合虚拟条件句,主句是对现在事实的假设,而从句是对过去事实的假设,从句的时态运用应该是if radio had not been invented,而在if引导的虚拟条件状语从句中,如果从句中含有had,were或者should,可将if省略,而把这些词提前,构成虚拟条件句的倒装;故选D.
点评 本题考查虚拟语气,要掌握与过去,现在,将来虚拟时的句型结构并结构具体的语境选择出正确的答案.
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