Question

英语问题

The reason is __________ he is unable to operate the machine.
A. because B. why C. that D. whether
您好！如何选择？理由？翻译？是什么从句？谢谢！

Answer 1

1.The reason why
2.The reason is that...
这是常用的带reason的结构.
第一个the reason是先行词,如果先行词在从句当状语的话,用why, 如果不是当状语,而是其它句子成份,则用相应的关系代词. 如:The reason why he didn't come was that he was ill then.他没来的原因是他当时病了.why在从句中当没来的原因.
The reason that he gave me was that he was ill then. 这句中的reason在从句中当give宾语,所以用that或which.
第二个结构是引导表语从句.就是你提出的这个句子,is后面是表语,从句子意思已经完整,所以用that引导从句.
The reason is __________ he is unable to operate the machine.
A. because B. why C. that D. whether
所以选C.

Answer 2

问题英文

Answer 3

The reason is _____c_____ he is unable to operate the machine.
A. because B. why C. that D. whether
答案解析：答案为C 答案

表示具体理由用 这样句型：The reason is that sb do sth

Answer 4

选C。
后面的he is unable to operate the machine这是原因，所以不用why。

wether不用再表示原因的表语从句。
because与reason 意思重复
选that，这是that引导的表语从句。

Answer 5

正解C
考察表语从句， 从句是个完整的陈述句， 故用 that 引导
原因是他不会操作机器。