Grammar and usage(1): Unreal conditions教学设计一等奖

扬州市邗江区瓜洲中学

方芳

2017-2018学年度

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虚拟语气在if条件状语从句中的运用

Subjunctive Mood in If-clause Learning aims

1. To grasp subjunctive mood in If-clause and the rules of it.

2. To finish exercise correctly after leaning this lesson.

Procedures

Step1. Appreciating a song

Appreciate the song IF I WERE A BOY. Please pay special attention to the lyrics of the song.

If I were a boy, even just for a day, I would roll out of bed in the morning...

If I were a boy, I think that I would understand...

Question:

Why do we use past tense in the sentences? When do we use this sentence pattern?

Step2. Definition

Subjunctive mood is usually used to talk about the situations that are not

true or not likely to become true.

Step3. Rules of subjunctive mood in If-clause Rule1 :

与过去事实相反的假设

时态

if 虚拟条件句

主句

与过去事实相反

had done

would /could/should /might +have done

Examples：

1.

If I had got up earlier, I could have caught the train.

2.

If he had driven（drive）more carefully, he would not have had (not have) the car accident yesterday.

Rule2:

与现在事实相反的假设

时态

if 虚拟条件句

主句

与现在事实相反

did\were

would /could/should /might +do

Examples：

1.

If I had a great deal of money now, I would buy a big house for my parents. 2.

If I were the schoolmaster, I would let the students get up a little later.

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扬州市邗江区瓜洲中学

方芳

2017-2018学年度

—————————————————————————————————————————————

Rule3 : 与将来事实相反的假设

时态

if 虚拟条件句

主句

were to do 与将来事实相反

were\did would /could/should /might +do

should do

Examples：

1. If I met president Xi some day, I would shake hands with him.

If I were to meet president Xi some day, I would shake hands with him. If I should meet president Xi some day, I would shake hands with him. 2. If I won the lottery, I would buy a villa. If I were to win the lottery, I would buy a villa. If I should win the lottery, I would buy a villa.

Step4. Omission and inversion in if-clause 在if虚拟条件句中，如果条件句中有were\ had（助动词)\should, 可使用倒装结构。

Step 1: 省略if Step 2: 把句中的were\ had（助动词)\should置于句首

Examples：

1. If I had seen him then, I would have been very happy.

= Had I seen him then, I would have been very happy. 2. If I should have time, I would go with you.

= Should I have time, I would go with you.

3. If I were not so busy, I would go with you.

= Were I not so busy, I would go with you.

Step 5. Exercise 1.

If we ___ the other road, we might have arrived here in time for the meeting.

A. take

B. had taken

C. took

D. have taken 2. —I hope you’re enjoying your stay here.

—If it _______ for the climate，I would like it here very much.

A．isn’t

B．hasn’t been

C．weren’t

D．hadn’t been 3．_______him not to do so, he wouldn't have made such a serious mistake.

A．If I persuaded

B．Did I persuade

C．Had I persuaded

D．If I should persuade 4. ________it rain tomorrow, we would have to cancel the

football match .

A．Were

B.Would

C. Will

D.Should 5. If the weather had been better，we could have had a picnic. But it ______ all day.

A. rained

B. rains

C. has rained

D. is raining

Answer:

BCCDA Step 6. Summary and Homework

Summarize the content in this lesson and ask students to do some relevant exercise to consolidate what they have learned in this lesson.

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