Book6-U3-Grammarandusage.doc

如皋市搬经中学高二英语活动单
M6U3 Understanding each other
Grammar and Usage Unreal conditionals
执教者：金冬冬
Learning aims:
After learning this part, the students will be able to:
1. know what are unreal conditionals;
2. use unreal conditionals of the present, past and future time;
3. improve the ability of using unreal conditionals.
Learning procedures:
Step 1 Lead-in(PPT3-4)
1. Translate the following sentence .
如果我是一只小鸟，我就能飞了。
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2. Find out the unreal conditional sentences mentioned in reading .
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Step 2 Presentation (PPT5-15)
Ⅰ.The three different tenses in which unreal conditionals can be used.
1. to state a present condition or situation that is not real or is imaginary.
E.g. 1）If I were you, I would ask my parents for help.
2）If I had the chance, I might want to be a doctor.
the Pattern we use in unreal conditionals to state a present condition or situation.
If … were/did …, … would/could/might/should do …
Practice: 1) 假如我有更多的时间，我就学习汉语了。
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2) 要不是她这么忙，她就会出席今天下午的会议了。
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TIPS: 1) Would, could and might are often interchangeable, but with some difference in meaning.
Would → intention; plan
Could → ability; possibility
Might → probability
2) In written English or in formal situation, we usually use were in If-clauses in place of was. However, in everyday conversation, was is often used.
2. to refer to an imaginary past action.
E.g. If the man had pointed with his first finger while he was in Brunei, everyone would have thought that he was very rude.
We form unreal past conditionals like this:
If … had been/done …, … would/could/might/should have done …
Practice: 1) 如果他快一点的话，他就能赶上那趟火车。
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2) 如果你昨天告诉他，他也许会提些建议。
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3. to talk about imaginary future situations.
E.g. 1) If I had time tomorrow, I would certainly help you.
2) If I were to fail my English test, I would have to take it again at the end of the term.
3) If he should come tomorrow, I would talk to him about it.
The pattern of the unreal future conditionals :
If … were/did/should/were to …, … would/should/might/could do.
Practice: 1) 假如我要出国，我就会去中国。
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2) 万一明天下雨，我们的运动会就推迟。
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Conclusion:
表示与事实情况相反
条件从句的谓语形式
主句的谓语形式

Ⅱ 条件句中虚拟语气的倒装
We can also put should, were and had at the beginning of an unreal conditional sentence. In this case, if is not needed any more.
E.g. 1) If you should make a mistake, you should not be embarrassed.
→_______you _______a mistake, you should not be embarrassed.
2) If you had told me earlier, I would not have this problem now.
→_______ you _______ me earlier, I would not have this problem now.
3) If you were to take the train, you would be there much sooner.
→_______ you _______ ________ the train, you would be there much sooner.
Tip: 如果省略的条件句中的谓语动词是否定形式时,不能用动词的缩略形式.
我们可以说: Were it not for the expense, I would go abroad now.
但不说: Weren’t it for …
Have a try：
____ she ____ yesterday, she would have met the famous singer .
A. Hadn’t; left B. Had; not left C. If; didn’t leave D. Didn’t; leave
Step 3. Practice(PPT16-25)
Ⅰ. Fill in the blanks with the verbs given in the brackets in their proper forms.
1. You didn’t let me drive. If we ______ (drive) in turn, you ______ (not get) so tired.
2. __________ it ________ (not be) for your help, I couldn’t have made any progress.
3. ____________ it _____________ (rain) tomorrow, the match would be called off.
4. Jean doesn’t want to work right away because she thinks that if she__________ (get) a job, she probably wouldn’t be able to see her friends very often.
5. Much labor would have been saved if electronic computer _____ (invent) before.

6. —Well done, Jack！
—Thanks. But given more time, I ___________ (do) it better.
Ⅱ. Choose the right answer.
1. Everything if Albert hadn’t called the fire brigade.
A. will be destroyed B. will have been destroyed
C. would be destroyed D. would have been destroyed
2. The business is risky. But , we would be rich.
A. should we succeed B. we should succeed
C. might we succeed D. would we succeed
3. What would have happened, ________, as far as the river bank?
A. Bob had walked farther B. if Bob should walk farther
C. had Bob walked farther D. if Bob walked farther
4. _____the exam, he would have attended a college.
A. If he passed B. Had he passed
C. Were he passed D. If he should pass
5. _____ five minutes earlier, you could have seen them off.
A. If you should arrive B. If you arrive
C. Had you arrived D. Should you arrive
6. _____it rain tomorrow, we should have to put off the visit to the Science Museum.
A. Were B. should C. would D. will
Ⅲ.Translate the following sentences :
1. 如果他更加努力的话，他就成功了。
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2. 如果我是你，我就会向老师求助。
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3. 如果我女儿不忙的话，她就会来帮助你。
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4. 如果没有非真实条件句，英语就容易多了。
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5. 曾经有一份真挚的感情放在我的面前，我没有珍惜。等我失去的时候我才后悔莫及。如果上天能够给我一个再来一次的机会，我会对那个女孩子说三个字：“我爱你”。(Zhou Xing Xing's regret)
If I __________________ when I got it, I ______________________ when I lost it.
If God _____________________right now, I _______________________________.
Step 4. Personal show
Make some beautiful sentences with unreal conditionals by yourselves and then present them to all of us. (Eg. If I won a lottery, I could…; If I had done my homework, I would have…If I were a teacher, I would…)

Step 5. Homewok
Finish Workbook C1&C2 and practice more about unreal conditionals.
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