Why ________ he works very hard at his lessons,only to fail

Why ________ he works very hard at his lessons,only to fail in the exam?
A.it is that B.is it that C.that is D.is that
选哪一个?为什么?

fvmf 1年前已收到6个回答举报

westrain12 春芽

共回答了16个问题采纳率：81.3% 举报

B
因为这里是在考一个强调句型
原型为：It is+强调部分＋that/who.
但是这里是问句的形式,所以要倒装.
所以选B

1年前

dd人生幼苗

共回答了33个问题举报

B 强调语句固定搭配

1年前

erlv514 幼苗

共回答了57个问题举报

选B
首先是特殊疑问语气，再者是强调句

1年前

群策智领幼苗

共回答了2183个问题举报

B. is it that
Why is it that ..... 是固定组合

1年前

yuwenzanyi 幼苗

共回答了8个问题举报

B
这道题考得是宾语从句，同时是特殊疑问句。这里it作形式宾语，that后面引导的句子才是真正的宾语。

1年前

lzrlbx 幼苗

共回答了2个问题举报

选D.
这是一个看似复杂的主语从句,
that后面的部分在句子中做主语成分

1年前

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