题目内容
18.It is not quite clear_______our local government will do with air pollution.( )A. | whether | B. | how | C. | what | D. | that |
分析 我们的当地政府如何解决大气污染问题是很不明确的.
解答 答案:B.
本句中It为形式主语,根据谓语部分is not quite clear(很不明确)可知,应该是政府如何治理大气污染,所以为how引导的主语从句,而不是"是否"(whether)治理,排除A;what引导主语从句时要充当成分,此处从句不缺少成分,可排除C项;that引导的主语从句为一肯定事实,和谓语部分的意思相矛盾,排除D;do with处理;故选B.
点评 对于名词性从句的引导词要明白具体的意思和用法,that引导主语从句且位于句首时不能省略;如:That he has told lies is quite clear.他说了谎,这一点很明显.
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