题目

Beneath each of the following sentences there are four choices marked A, B, C and D. Choose the one answer that best completes the sentence. The traditional view is _______ we sleep because our brain is “programmed” to make us do so.A. whenB. whyC. whetherD. that

Beneath each of the following sentences there are four choices marked A, B, C and D. Choose the one answer that best completes the sentence. The traditional view is _______ we sleep because our brain is “programmed” to make us do so.

A. when

B. why

C. whether

D. that

题目解答

答案

D. that

解析

此题考查的是宾语从句的引导词。句子的主干是"The traditional view is"，后面的部分是宾语从句。宾语从句中，"we sleep because our brain is 'programmed' to make us do so"是一个完整的句子，不缺少任何成分，因此需要一个引导词来连接主句和从句，而这个引导词在从句中不充当任何成分，只起连接作用。选项中，只有"that"可以作为引导词，用于引导宾语从句，且在从句中不充当任何成分。