Not until she had arrived home did she remember her appointment with the doctor.

直到她回家，她才想起与医生的约会。

④It is/was...that...强调句型中，that作宾语时可以省略，例如：

It was a new dictionary(that)Father bought for me.

父亲给我买的是一本新字典。

Was it her(that)you were talking about?

你刚才是和她在谈话吗？

⑤如果强调的是特殊疑问句，要用"特殊疑问词+is/was+it+that+..."结构，表示"究竟是谁......，到底在哪里......"等等。例如：

Who was it that you want to see?

你究竟想见谁？

Where was it that you saw the teacher?

你到底在哪里看见老师的？

Why is it that you want to change your mind?

你究竟为什么要改变主意？

活学巧用

1.按要求改写句子

（1）Bill made a kite at school yesterday.(强调主语)

__________________________________________

答案：It was Bill who made a kite at school yesterday.

（2）John sells potatoes.(强调宾语)

__________________________________________

答案：It is potatoes that John sells.

(3)I painted the door white.(强调宾语补足语)

__________________________________________

答案：It was white that I painted the door.

(4)The mother loves her baby dearly.(强调谓语）

__________________________________________

答案：The mother does love her baby dearly.

(5)Mr.Smith gave a new pen to me.(强调me）

__________________________________________

答案：It was me that Mr.Smith gave a new pen to.

2.单项填空

（1）（经典回放）It is these poisonous products________ can cause the symptoms of the flu,such as headache and aching muscles.

A.who B.that C.how D.what

提示：本句是强调结构，强调these poisonous products。

答案：B

（2）I feel it is your husband who________ for the spoiled child.

A.is to blame B.is going to blame

C.is to be blamed D.should blame

提示：本句是强调结构，blame这个词往往用主动形式表示被动意义。

答案：A