Question

Beneath each of the following sentences there are four choices marked A, B, Cand 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.

1. A.
   when
2. B.
   why
3. C.
   whether
4. D.
   that

Answer 1

D
思路分析：句意为：传统看法是我们得睡眠因为我们的大脑天生让我们这样做。that引导表语从句且在表语从句中不作成分。When, why, whether与句意不符。
【点评】本题考查表语从句，难度中等。