语法学案教学文档

语法学案

I. 句式讲解

1. 强调句型的基本结构形式

It is/was + 被强调部分+ that + 句子的其余部分

当被强调部分是人时that也可以换成who。

原句：Professor Liu teaches us English this year.

强调主语：It is Professor Liu who teaches us English this year.

强调宾语：It is English that Professor Liu teaches us this year.

强调状语:It is this year that Professor Liu teaches us English.

2. 强调句型的特点

去掉It is (was) 及that (who) 后，在不添词、不减词后，剩下的部分能组成一个完整的句子。这也是判断一个句子是否是强调句型的依据。

3. 强调句型的时态

如果原句中谓语动词使用的是现在或将来时间范畴的时态（一般现在时、现在进行时、现在完成/现在完成进行时、一般将来时、将来进行时、将来完成时等），用

___________________。

如果原句中谓语动词为过去时间范畴的时态（一般过去时、过去进行时、过去完成时、过去将来时等），则用___________________。

4. 强调句型的一般疑问句式

Is/Was it + 被强调部分+that+句子的其余部分。

_____________________________________. 是刘教授今年教我们英语吗?（强调句)

5. 强调句型的特殊疑问句式

特殊疑问句+is/was it+被强调部分+that+句子的其余部分。

_____________________________________. 今年教我们英语的是谁？

_____________________________________. 刘教授今年是教我们什么的？

6. not…until句型的强调句型

当被强调的是not…until句型时，应将not置于until之前，主句由否定句改为肯定句。

如：He didn’t leave until 11 o ’clock.他直到11点才离开。

_____________________________________.（强调not until时间状语）

II. 练习

1. Multiple choice:

(1) It wasn’t until nearly a month later I received the manager’s reply.

A. since

B. when

C. as

D. that

(2) It was back home after the experiment.

A. not until midnight did he go

B. until midnight that he didn’t go

C .not until midnight that he went D. until midnight when he didn’t go

(3) Why! I have nothing to confess. you want me to say?

A. What is it that

B. What it is that

C. How is it that

D. How it is that

(4) It is these poisonous products can cause the symptoms(症状)of the

lu ,such as headache and aching muscles.

A. who

B. that

C. how

D. what

(5) It was because of bad weather the football match had to be put off.

A. so

B. so that

C. why

D. that

(6) It was for this reason her uncle moved out of New York and settled down in

a small village.

A. which

B. why

C. that

D. how

(7) It is the ability to do the job matter not where you come from or what you are.

A. it

B. that

C. one

D. this

(8) It was how the young man had learned five foreign languages attracted the audience’s interest.

A. so that

B. that

C. what

D. in which

(9) It was he said disappointed me.

A. what; that

B. that; that

C. what; what

D. that; what

(10) It was not until 1920 regular radio broadcasts began.

A. while

B. which

C. that

D. since

2. Rewrite each sentence with “It is …that…”to give more emphasis to the underlined

part.

(1) Greenhouse gases have warmed the earth by trapping heat energy in the atmosphere.

_____________________________________.

(2) The greenhouse effect gives the earth’s surface the average temperature of 15℃.

_____________________________________.

(3) Much of the energy used to light and heat our homes comes from fossil fuels.

_____________________________________.

(4) The biggest producer of greenhouse gases is the United States of America.

_____________________________________.

(5) Carbon dioxide stays in the atmosphere for centuries while other greenhouse gases

stay in the atmosphere only for a day or less.

_____________________________________.

(6) Low-lying countries feel their very existence is in danger from rising sea levels.

_____________________________________.

(7) He told me where to find this spot.