初级英语语法重点、考点与难点(14)

3. 这不是强调句吗

It might have been John ______ bought a new book for Mary yesterday.

A. what                    B. since                    C. that                     D. then

此题应选 C。此题的难点在于考生看不出这是一个强调句型, 因为主句的谓语动词be采用了might have been这一复杂形式。此句若改为非强调句, 则可以是：

John might have bought a new book for Maryyesterday. 约翰昨天可能给玛丽买了一本新书。

将此句改为强调句(强调主语), 则可以有两种形式：

a. It is John that might have bought a new book

for Mary yesterday.

b. It might have been John that bought a new book

for Mary yesterday.

又如：

It must be a girl that wrote the letter. 写这封信的一定是个女孩。

It might be yesterday that he left for Beijing. 他可能是昨天去北京的。

Can it be Jim that has stolen the money? 偷钱的会是吉姆吗?

It may be next week that he leaves for Paris. 他可能是下个星期去巴黎。

It might have been her boyfriend that bought so nice a handbag for her. 给她买那样好看一个手提 包的可能是她的男朋友。

4. 你会将not...until用于强调句型吗

It was not ______ he took off his dark glasses ______ I realized he was a famous singer.

A. when, that           B. until, that            C. until, when          D. when, then

此题选B。考察not...until的强调结构, 其基本句型为：

It is (was) not until(时间状语)that(不用否定)

他妻子走了之后他才来。

正：He didn’t come until his wife left.

正：It was not until his wife left that he came.

直到雨停他们才出发。

正：They didn’t start until the rain stopped.

正：It was not until the rain stopped that they started.

请做以下各题：(www.hxen.net)

1. It was not until midnight ______ the noise ofthe street stopped.

A. that                      B. this                       C. since                    D. at which

2. It was not ___1920 ___ regular radio broadcastbegan.

A. for, that                B. until, that

C. for, when             D. until, when

3. It was not _____ you had explained how _____ Imanaged to do it.

A. for, that                B. until, that

C. for, when             D. until, when

答案：1. A 2. B 3. B