Grammar and usage(2): Unreal conditions多媒体教案及点评

Unreal Conditionals Step 1

Leading in Pay attention to the pictures and tell the differences: If my mother comes to our school tomorrow, I will be happier. If Xi Dada came to our school tomorrow, I would be happier. When we talk about a situation which is possible or likely to happen, we use ______________. When we talk about a situation which is impossible or unlikely to happen, we use ___________________.

Step 2: Learning Aims:

By the end of this period, we are expected to know

1. when to use unreal conditionals . 2. how to use unreal conditionals.

Step 3:

Definition

What is an unreal conditional

(虚拟语气) ? 虚拟语气是一种特殊的动词形式(verb structure), 用来表示说话人所说的话不是一个事实

(fact),而是一种假设(hypothesis )、愿望(wish)、建议(suggestion) 或怀疑(doubt)等等. 通常有三种情况：

①与现在事实相反

Contrary to the present ②与过去事实相反

Contrary to the past ③与将来事实相反

Contrary to the future

Step 4:

Analysis Find the rule:

(Have you seen the film Titanic?) •

If I ______ a lot of money now,

I ______ a ticket. • If I ______ a ticket today, I ______on board.

• If I______ on board now, I ______ sail for America. Rule1: 与现在事实相反: If sb.__________sth, sb. ___________sth

Jack :

Rose, if I___________ the ticket then, I ___________ on board. Rose:

If you ___________on board at that time, I ___________ you. Rule 2: 与过去事实相反: If sb.________ sth, sb. _____________sth.

After the ship sank , Jack said:

If I __________, I __________ you some day.

If we __________, we __________ a happy life.

If we __________ live a happy life , we __________ many children of our own in the future. Rule 3: 与将来事实相反: If sb.____________ sth, sb. _________sth.

Summary:

Contrary to the present Contrary to the past Contrary to the future

If clause

Main clause

Step 5:

Consolidation: 1. If I ____ where he lived, I ____ a note to him. A. knew; would

B. had known; would have sent

C. know; would send

D. knew; would have sent 2. Mary is ill today. If she _____, she ____ absent from school. A. were not ill; wouldn't be

B. had been ill; wouldn't have been C. had been ill; should have been

D. hadn't been ill; could be 3. If you had enough money, what ________? A. will you buy

B. would you buy C. would you have bought

D. will you have bought 4. ---If he _____, he ______ that food.

-- Luckily he was sent to the hospital immediately. A. was warned; would not take

B. had been warned; would not have taken C. would be warned; had not taken

D. would have been warned; had not taken 5. I didn't see your sister at the meeting. If she _____, she would have met my brother. A. has come

B. did come

C. came

D. had come Fill in the blanks: 1. If you _______(remind) me earlier, I could have avoided the same mistake.

2. I _______(study) harder if I_______ (be) at school again. 3. If it ___________________ (rain) tomorrow, we __________ (put off) the sports meeting till next Friday. 4. Tom _______(come) to join us now if he _______ (know) you are here. 5. He _________ (pass) the job interview the other day, but he didn't get everything ready.