题目内容
3.Do you doubt ______eating raw vegetables is beneficial to our physical health?( )A. | that | B. | whether. | C. | if | D. | which |
分析 你怀疑吃生蔬菜对我们的健康有益吗?
解答 答案为A.本题考查名词性从句中引导词的运用.that表示"确定的信息",在名词性从句中不担任成分,无意义,除宾语从句外,that不可省略;whether/if 表示"是否",在从句中不担任成分;if 一般只引导宾语从句; which 在名词性从句中表示"选择",做主语、宾语或表语;题干中动词doubt后接的宾语从句,表示对某个"确定"的事实怀疑,从句从意思到成分都是完整的,故用that,答案是A.
点评 名词性从句考查的关键是连接词的选用和语序,因此,我们首先要搞清从句的性质,掌握各连接词的用法,在此基础上判断.此外,关注名词性从句用陈述语序.
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