题目内容
12.The question _____ new measures should be taken to control the terrible air pollution is ____ puzzles scientists a lot.( )| A. | that; what | B. | which; that | C. | what; what | D. | which; that |
分析 采取新的措施来控制空气污染这一问题最为困扰科学家.
解答 答案:A
分析句式可知,_____ new measures should be taken to control…是一个同位语从句,修饰名词questions,在从句中不缺成分,所以用that引导,没有具体意思但不能省略;第二空____ puzzles scientists a lot是一个表语从句,从句中缺少主语,所以用what引导,意为…的.
点评 考生需对表语从句的特点以及引导词的选用熟悉,并且能结合其他句型综合使用.
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