题目内容
16.Researchers have failed to find a way to treat such diseases,and it will still be years before they can find____is effective.( )A. | the one | B. | one that | C. | the one that | D. | one |
分析 研究者没有找到一个可以攻克这个疾病的办法,还有几年他们才能找到有效的方式.
解答 答案:B 考查指示代词.根据题意,空格处应是way,为避免重复,用one代替同类异物,分析句子结构可知这是一个定语从句,先行词one指物,在从句中作主语,要用关系代词that,且表示泛指,其前要不加定冠词the.故正确答案是:B.
点评 指示代词是用来指示或标识人或事物的代词.指示代词与定冠词和人称代词一样,都具有指定的含义,用来起指示作用,或用来代替前面已提到过的名词.指示代词分单数和复数两种形式,既可作限定词又可做代词.要弄清楚它们之间的区别,才能正确选择答案.
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