Unit 2 Poems Discovering Useful Structures 课件（共30张PPT）
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| 名称 | Unit 2 Poems Discovering Useful Structures 课件（共30张PPT） |  | |
| 格式 | zip | ||
| 文件大小 | 1.1MB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 人教版（新课程标准） | ||
| 科目 | 英语 | ||
| 更新时间 | 2019-11-17 20:24:40 | ||
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文档简介
(共30张PPT)
主从
句
构
成
时 态
虚拟条件从句
主 句
与现在事
实相反的
假设
If + 主语 + 动词过去时 (be用 were)
主语 + would / should / could / might + 动词原形
Review
If I were you, I should buy it. If I had time, I would study French.
If she knew English, she would not ask me for help.
主从
句
构
成
虚拟条件从句
主 句
与将来情况相反的
假设
①If + 主语 + 动词的
过去时
② If + 主语 + were
to + 动词原形
③ If + 主语 + should
+ 动词原形
主语 + would / should / could /
might + 动词原形
If you came tomorrow, we would have the meeting.
If it were to rain tomorrow, we would put off the sports meeting.
If he should not come tomorrow, we would put off the meeting till next week.
时态
He talks as if he _________ (know) everything in the world.
2. He doesn’t dare to leave the house in case _______________________ (他被认出来).
knew
he should be recognized
Read Poem C in the Reading section find out the sentences in the subjunctive mood.
We would have won …
If Jack had scored that goal,
If we’d had just a few more minutes,
If we had trained harder,
If Ben had passed the ball to Joe,
If …
If there had been enough rain in spring, we would have had a good harvest now.
If I had come here yesterday, I would have seen him.
If you had taken my advice, you wouldn’t / couldn’t have failed in the exam.
If I had known your telephone number yesterday, I should / would / could / might have telephoned you.
More examples
Summary
主从
句
构
成
时态
虚拟条件从句
主 句
与过去事实相反的假设
If + 主语 + had +过去分词
主语 + would / should / could / might + have
+ 过去分词
1. Maybe if I ___________ (study) science, and not literature then, I would be able to give you more help.
解析：根据意思“如果那时我要是学了理科，不是文科，我就能给你更多的帮助了。”判断这是与过去事实相反的假设，所以用过去完成时。答案为had studied。
[典型例题]
had studied
2. I ______________ (come) sooner but I didn’t know that they were waiting for me.
解析：根据but I didn’t know that they were waiting for me.判断这是一个与过去事实相反的假设，所以主句应该用would have done。答案为would have come。
would have come
3. --- Sorry, Professor Smith. I didn’t finish
the assignment yesterday.
--- Oh, you _______________ (do) it as yesterday was the deadline.
解析：此处表示和过去事实相反的情况，应该用“should + have + 过去分词”，表示“本来应该做、而未做”。 故为should have done。
should have done
4. If he _____________ (follow) my advice, he wouldn’t have lost his job.
解析：根据“wouldn’t have lost”可判断，if引导的状语从句表示与过去事实相反的虚拟，故为had followed。
had followed
5. John went to the hospital alone. If he _____________ (tell) me about it, I would have gone with him.
解析：前一句是陈述语气，说明动发生在过去，而且后一句的主句已经是would have gone说明是与过去事实相反的虚拟语气。与之对应的从句结构，应该用“had +过去分词”，故为had told 。
had told
6. We ____________ (be) back in the hotel now if you didn’t lose the map.
解析：根据条件状语从句中if we didn‘t lo se the map可知，主从句都是对现在情况的假设 ，所以填would be。
would be
条件从句中的动作和结果与主句中的动作，发生的时间不一致，这时动作的形式应根据它所表示的时间加以调整。
If you had followed my advice, you would be able to finish?the work now.
如果你当时听了我的话，现在就能完成这份工作了。（从句说明过去，主句说明现在）
错综时间条件句
If I were you, I would have gone to her birthday?party.
如果我是你，我就去参加她的生日晚会了。（从句说明现在，主句说明过去)
If you hadn’t lent me some money, I couldn’t have bought ?the new house and most likely I would be still living in the dangerous house now.
假若你不借钱给我，我不可能买下这幢新房，很可能现在还住在危房里。
（从句说明过去，主句说明过去和现在）
通过介词短语、副词或上下文语境来表示假设、条件的虚拟语气表达法叫做含蓄条件句。
1. 由介词without, but for (要不是) 表示条件。
Without your help, we wouldn’t have achieved so much.
(暗含条件是without your help)
2. But for the note you left, I would have forgotten to close the door.
(暗含条件是If you hadn’t left the note)
含蓄条件句
2. 由表示转折语气的词语otherwise, or,
or else 构成的句子。
I was busy that day. Otherwise I would have come to help you.
(暗含if I hadn’t been so busy)
3. 条件暗含在上下文中。
You might stay her forever.
你可以永远待在这儿。
(可能暗含if you wanted to)
We would have succeeded.
我们本来是会成功的。
(可能暗含if we had kept trying)
Your reputation would be ruined.
你的名誉会败坏的。
(可能暗含if you should accept it)
I would appreciate a little of your time.
谢谢你给我一点时间吧。
(可能暗含if you were so kind as to give me a little of your time)
在书面语中，如果虚拟条件从句中有were，had 或 should，可以把if省略，把这几个词放到主语之前，构成主谓倒装。
Had I seen the film, I would have discussed it with them last night.
Were I a bird, I could fly freely.
Should it rain next week the farmers would have a good harvest.
条件从句中省去if的情况
If I had worked harder at school, I’d have got a better job.
= Had I worked harder at school, I’d have got a better job.
If I had not seen it with my own eyes, I would not have believed it.
= Had not seen it with my own eyes, I would not have believed it.
Practice
would have asked
to convey
1. If I knew you were coming, I _____________ (ask) you __________ (convey) my love to your parents.
2. He has a talent for writing poems. He ____________ (win) the first prize if he ___________ (practise) more.
could win
practised
had known
3. If I _________ (know) more about diamond, I would not have been cheated by that man.
4. Your pet dog ___________ (like) you more, if you _________ (treat) him better.
5. I ____________________ (avoid) the trouble if only I had listened to my parents.
treated
would like
would have avoided
would not have fallen
6. If the cat hadn’t teased the sparrow, it _____________________ (not, fall) into the pond.
7. I would have got the award, only if I ___________ (recite) the poem more loudly.
8. If he should not come tomorrow, we ____________ (put off) the meeting till next week
had recited
would put off
1. If you had come earlier,
2. If Rob hadn’t injured himself,
3. If there had not been an exchange programme,
4. If she had studied harder,
5. If the poet had not written such a beautiful poem about this place,
we would have won.
she would have got the diploma.
C. it would not have become so famous.
D. he would not have found a sponsor to help him study abroad.
E. You would not have missed the exciting scene in the movie.
Match the beginning of each sentence with the appropriate ending.
Miss Jiang explained the homework to the class yesterday. If Alfred________ (pay) more attention at the time, he_________________ (not miss) her instructions.
I’m sorry, I don’t have a compass. Of course I _______ (lend) it to you if I ____ (have) one.
Len doesn’t think he will ever win a poetry competition. If, by chance, he ____ (win), he _______(spend) the prize money on a computer.
would not have missed
had paid
would lend
had
would spend
won
Fill in the blanks using the correct forms of the verbs in brackets.
4. Luckily, Janet is good at writing in English. If she __________ (not write) well, she___________ (spend) more time practising.
5. If I ____ (be) you, I ________________ (take it easy) and go home early.
6. Sue missed the party last night. I’m sure that if she _________ (be) there, the bride and bridegroom ______________ (feel) happier.
would spend
didn’t write
would take it easy
were
would have felt
had been
1.假如他来了，我们对他说什么呢？
2.下周一我要是有时间就与你一起去。
3.老师建议我们最后把黑板擦了。
Translate the following sentences into English.
If he were to come , what should we say to
him?
If I had time next week , I would go with you.
The teacher suggested that we should clean
the blackboard at last.
4.如果你早点开始做家庭作业，你早就
做完了。
5.如果我是一只小鸟，我就能在空中飞行。
6.如果没有你们的帮助，我们就会陷入困
境。
If?you?had?begun?to?do?your?homework?
earlier,?you?would?have?completed?them.
If?I?were?a?bird,?I?could?fly?in?the?air.
Without your help, we would get into trouble.
如果我们今天下午没有考试的话，我
现在就去购物了。
8.如果你当时听了我的话，现在就能完成这份工作了。
If?we?shouldn’t?have?an?exam?this?afternoon,?
I?would?go?shopping?now.
If?you?had?followed?my?advice,?you?would?be?able?to?finish?the?work?now.
主从
句
构
成
时 态
虚拟条件从句
主 句
与现在事
实相反的
假设
If + 主语 + 动词过去时 (be用 were)
主语 + would / should / could / might + 动词原形
Review
If I were you, I should buy it. If I had time, I would study French.
If she knew English, she would not ask me for help.
主从
句
构
成
虚拟条件从句
主 句
与将来情况相反的
假设
①If + 主语 + 动词的
过去时
② If + 主语 + were
to + 动词原形
③ If + 主语 + should
+ 动词原形
主语 + would / should / could /
might + 动词原形
If you came tomorrow, we would have the meeting.
If it were to rain tomorrow, we would put off the sports meeting.
If he should not come tomorrow, we would put off the meeting till next week.
时态
He talks as if he _________ (know) everything in the world.
2. He doesn’t dare to leave the house in case _______________________ (他被认出来).
knew
he should be recognized
Read Poem C in the Reading section find out the sentences in the subjunctive mood.
We would have won …
If Jack had scored that goal,
If we’d had just a few more minutes,
If we had trained harder,
If Ben had passed the ball to Joe,
If …
If there had been enough rain in spring, we would have had a good harvest now.
If I had come here yesterday, I would have seen him.
If you had taken my advice, you wouldn’t / couldn’t have failed in the exam.
If I had known your telephone number yesterday, I should / would / could / might have telephoned you.
More examples
Summary
主从
句
构
成
时态
虚拟条件从句
主 句
与过去事实相反的假设
If + 主语 + had +过去分词
主语 + would / should / could / might + have
+ 过去分词
1. Maybe if I ___________ (study) science, and not literature then, I would be able to give you more help.
解析：根据意思“如果那时我要是学了理科，不是文科，我就能给你更多的帮助了。”判断这是与过去事实相反的假设，所以用过去完成时。答案为had studied。
[典型例题]
had studied
2. I ______________ (come) sooner but I didn’t know that they were waiting for me.
解析：根据but I didn’t know that they were waiting for me.判断这是一个与过去事实相反的假设，所以主句应该用would have done。答案为would have come。
would have come
3. --- Sorry, Professor Smith. I didn’t finish
the assignment yesterday.
--- Oh, you _______________ (do) it as yesterday was the deadline.
解析：此处表示和过去事实相反的情况，应该用“should + have + 过去分词”，表示“本来应该做、而未做”。 故为should have done。
should have done
4. If he _____________ (follow) my advice, he wouldn’t have lost his job.
解析：根据“wouldn’t have lost”可判断，if引导的状语从句表示与过去事实相反的虚拟，故为had followed。
had followed
5. John went to the hospital alone. If he _____________ (tell) me about it, I would have gone with him.
解析：前一句是陈述语气，说明动发生在过去，而且后一句的主句已经是would have gone说明是与过去事实相反的虚拟语气。与之对应的从句结构，应该用“had +过去分词”，故为had told 。
had told
6. We ____________ (be) back in the hotel now if you didn’t lose the map.
解析：根据条件状语从句中if we didn‘t lo se the map可知，主从句都是对现在情况的假设 ，所以填would be。
would be
条件从句中的动作和结果与主句中的动作，发生的时间不一致，这时动作的形式应根据它所表示的时间加以调整。
If you had followed my advice, you would be able to finish?the work now.
如果你当时听了我的话，现在就能完成这份工作了。（从句说明过去，主句说明现在）
错综时间条件句
If I were you, I would have gone to her birthday?party.
如果我是你，我就去参加她的生日晚会了。（从句说明现在，主句说明过去)
If you hadn’t lent me some money, I couldn’t have bought ?the new house and most likely I would be still living in the dangerous house now.
假若你不借钱给我，我不可能买下这幢新房，很可能现在还住在危房里。
（从句说明过去，主句说明过去和现在）
通过介词短语、副词或上下文语境来表示假设、条件的虚拟语气表达法叫做含蓄条件句。
1. 由介词without, but for (要不是) 表示条件。
Without your help, we wouldn’t have achieved so much.
(暗含条件是without your help)
2. But for the note you left, I would have forgotten to close the door.
(暗含条件是If you hadn’t left the note)
含蓄条件句
2. 由表示转折语气的词语otherwise, or,
or else 构成的句子。
I was busy that day. Otherwise I would have come to help you.
(暗含if I hadn’t been so busy)
3. 条件暗含在上下文中。
You might stay her forever.
你可以永远待在这儿。
(可能暗含if you wanted to)
We would have succeeded.
我们本来是会成功的。
(可能暗含if we had kept trying)
Your reputation would be ruined.
你的名誉会败坏的。
(可能暗含if you should accept it)
I would appreciate a little of your time.
谢谢你给我一点时间吧。
(可能暗含if you were so kind as to give me a little of your time)
在书面语中，如果虚拟条件从句中有were，had 或 should，可以把if省略，把这几个词放到主语之前，构成主谓倒装。
Had I seen the film, I would have discussed it with them last night.
Were I a bird, I could fly freely.
Should it rain next week the farmers would have a good harvest.
条件从句中省去if的情况
If I had worked harder at school, I’d have got a better job.
= Had I worked harder at school, I’d have got a better job.
If I had not seen it with my own eyes, I would not have believed it.
= Had not seen it with my own eyes, I would not have believed it.
Practice
would have asked
to convey
1. If I knew you were coming, I _____________ (ask) you __________ (convey) my love to your parents.
2. He has a talent for writing poems. He ____________ (win) the first prize if he ___________ (practise) more.
could win
practised
had known
3. If I _________ (know) more about diamond, I would not have been cheated by that man.
4. Your pet dog ___________ (like) you more, if you _________ (treat) him better.
5. I ____________________ (avoid) the trouble if only I had listened to my parents.
treated
would like
would have avoided
would not have fallen
6. If the cat hadn’t teased the sparrow, it _____________________ (not, fall) into the pond.
7. I would have got the award, only if I ___________ (recite) the poem more loudly.
8. If he should not come tomorrow, we ____________ (put off) the meeting till next week
had recited
would put off
1. If you had come earlier,
2. If Rob hadn’t injured himself,
3. If there had not been an exchange programme,
4. If she had studied harder,
5. If the poet had not written such a beautiful poem about this place,
we would have won.
she would have got the diploma.
C. it would not have become so famous.
D. he would not have found a sponsor to help him study abroad.
E. You would not have missed the exciting scene in the movie.
Match the beginning of each sentence with the appropriate ending.
Miss Jiang explained the homework to the class yesterday. If Alfred________ (pay) more attention at the time, he_________________ (not miss) her instructions.
I’m sorry, I don’t have a compass. Of course I _______ (lend) it to you if I ____ (have) one.
Len doesn’t think he will ever win a poetry competition. If, by chance, he ____ (win), he _______(spend) the prize money on a computer.
would not have missed
had paid
would lend
had
would spend
won
Fill in the blanks using the correct forms of the verbs in brackets.
4. Luckily, Janet is good at writing in English. If she __________ (not write) well, she___________ (spend) more time practising.
5. If I ____ (be) you, I ________________ (take it easy) and go home early.
6. Sue missed the party last night. I’m sure that if she _________ (be) there, the bride and bridegroom ______________ (feel) happier.
would spend
didn’t write
would take it easy
were
would have felt
had been
1.假如他来了，我们对他说什么呢？
2.下周一我要是有时间就与你一起去。
3.老师建议我们最后把黑板擦了。
Translate the following sentences into English.
If he were to come , what should we say to
him?
If I had time next week , I would go with you.
The teacher suggested that we should clean
the blackboard at last.
4.如果你早点开始做家庭作业，你早就
做完了。
5.如果我是一只小鸟，我就能在空中飞行。
6.如果没有你们的帮助，我们就会陷入困
境。
If?you?had?begun?to?do?your?homework?
earlier,?you?would?have?completed?them.
If?I?were?a?bird,?I?could?fly?in?the?air.
Without your help, we would get into trouble.
如果我们今天下午没有考试的话，我
现在就去购物了。
8.如果你当时听了我的话，现在就能完成这份工作了。
If?we?shouldn’t?have?an?exam?this?afternoon,?
I?would?go?shopping?now.
If?you?had?followed?my?advice,?you?would?be?able?to?finish?the?work?now.