题目内容
16.The toughest thing about success is ________ you have to keep on being a success.( )A. | why | B. | when | C. | what | D. | that |
分析 关于成功最难的事情是你必须要保持不断成功的状态.
解答 答案:D 题干中you have to keep on being a success是作is的表语,是一个表语从句;从句结构完整,不缺少成分,不能用what来引导;句意表达的是事实,要用that来引导,并且不可省略.故选D.
点评 表语从句是名词性从句的一种,在句中作系动词的表语.表语从句的连接词分为三种:从句缺少主语或宾语时,要用连接代词;从句缺少状语时,要用连接副词;从句结构完整,不缺少成分时,要用that来连接,且不可省略.
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