北师大版 选修七 Unit 21 Human Biology Grammar 课件（26张ppt）
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| 名称 | 北师大版 选修七 Unit 21 Human Biology Grammar 课件（26张ppt） |  | |
| 格式 | zip | ||
| 文件大小 | 502.1KB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 北师大版 | ||
| 科目 | 英语 | ||
| 更新时间 | 2016-04-18 20:37:43 | ||
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课件26张PPT。Unit 21 Human BiologyMixed Conditional混合虚拟GrammarIf… First ConditionalSecond ConditionalThird ConditionalMixed conditionalRevision: First ConditionalSummaryFirst Conditional (真实条件句)：假设将来的情况可能发生。will / shall
+ dodo /doesIf I had a lot of money, I would buy a villa.Revision: Second ConditionalRevision: Second ConditionalSummarySecond Conditional： 虚拟语气 (和现在或将来事实相反的假设)。did / werewould (could/ should/ might)
+ doWhat would have happened if you had had time last night?Revision: Third ConditionalIf I ____________time last night,
I _____________ the
film with you .had hadwould have enjoyedRevision: Third ConditionalRevision: Third ConditionalIf I _____________ time, I __________________ Liu Dehua’s concert.had had timewould have gone toRevision: Second ConditionalSummaryThird Conditional： 虚拟语气 (和过去事实相反的假设)。had donewould (could/ should/ might)
+have doneSummarydo Will dowill / shall
+ dodid / werewould (could/ should/ might) + do
had donehad donewould (could/ should/ might)
+have done Summary Verb forms of different conditionsDiscovering: mixed ConditionalIf peter was a more skillful player, he would have scored more points
2nd conditional3rd conditionalIf Ben Johnson hadn’t been caught, he would still be the 100 meters record holder.Discovering: mixed ConditionalIf he had broken that record, he would be a world famous runner now
3rd conditional2nd conditional 3rd conditional 2nd conditional Discovering: mixed ConditionalDiscovery 1
The Pattern of the Mixed ConditionalHad done had donewould (could/ should/ might) + do did / wereWould….
+have doneDiscovering: mixed ConditionalEx: If they hadn’t invited me to the party, I wouldn’t be here.
They invited me to the party so I am here.
1. If peter was a more skillful player, he would have scored more points
Peter is not a skillful player, he didn’t score more pointsIf Ben Johnson hadn’t been caught, he would still be the 100 meters record holder
.
Ben was caught , and he is not the 100meters record holderIf he had broken that record, he would be a world famous runner now
.
He didn’t break the record
so he isn’t famous nowDiscovering: mixed ConditionalDiscovery 2
The Meaning of the Mixed ConditionalDiscovering: mixed ConditionalWe use the Mixed Conditional to talk about 假设的过去事件可能对现在的影响
假设的现在事件可能对过去的影响PracticeIf I__________________ all night ,
I _______________tired now.hadn’t workedwouldn’t feel现在过去If I ______ you, I _______________
shopping yesterday.
werewould have gone现在过去１．If I had a dictionary, I would have lent (lend) it to you yesterday.
２．If they had studied ( study) hard, they would be college students now.
３．If Mary hadn’t been caught ( not be catch) in the rain that day, she would not have (not have) a fever now.
４．If I were you，I wouldn’t have missed ( not miss) the film last night．
５．If you had asked ( ask) him when you saw him last time，you would know (know) what to do now．Complete the sentences with the correct form
of the verbs in brackets. According to the Chinese, complete the following sentences .
1.如果他遵照医生的劝告，现在病就好了。
If?he?had followed the?doctor's?advice，he?would?recover?already．
2.如果我当时在学校用功读书，我现在就有一个更好的工作了。
If I had studied harder at school, I would have a better job now.3.如果我不害怕蜘蛛的话，我就会把它抓起来的。
If I wasn’t afraid of spiders, I would have picked it up.
4.要是他们一大早就出发的话，再过半个小时就该到了。
If they had started in the early morning, they would arrive in half an hour．
5.如果昨晚下雨的话，今天就要凉快些了。
If it had rained last night, it would be cooler today. If you had gone to a doctor, you _____ all right now.
are B. were C. would have been D. would be
2. It is hard to imagine what I would be doing today if I ____ in love, at the age of seven, with the Melida Lox Library, in my hometown.
A. wouldn’t have fallen B. had not fallen
C. should fall D. were to fallPractice: third Conditional3. I was very busy yesterday, otherwise I ______ to the meeting.
A. came B. would come
C. had come D. would have come
4. If I ____ with her last summer, I ___ on very well with her now.
worked; am getting
had worked; would get
had worked; would have got
had worked; will get5. If it _____ yesterday, we could play football on the sports ground now.
didn’t snow B. hasn’t snowed
C. hadn’t snowed D. weren’t snowingPractice: third ConditionalHomework
Ex4—5 on page 80
Write a short passage by using
the words ,phrases and conditionals
learnt in class.
(You feel regret at your stupid
mistakes.)
+ dodo /doesIf I had a lot of money, I would buy a villa.Revision: Second ConditionalRevision: Second ConditionalSummarySecond Conditional： 虚拟语气 (和现在或将来事实相反的假设)。did / werewould (could/ should/ might)
+ doWhat would have happened if you had had time last night?Revision: Third ConditionalIf I ____________time last night,
I _____________ the
film with you .had hadwould have enjoyedRevision: Third ConditionalRevision: Third ConditionalIf I _____________ time, I __________________ Liu Dehua’s concert.had had timewould have gone toRevision: Second ConditionalSummaryThird Conditional： 虚拟语气 (和过去事实相反的假设)。had donewould (could/ should/ might)
+have doneSummarydo Will dowill / shall
+ dodid / werewould (could/ should/ might) + do
had donehad donewould (could/ should/ might)
+have done Summary Verb forms of different conditionsDiscovering: mixed ConditionalIf peter was a more skillful player, he would have scored more points
2nd conditional3rd conditionalIf Ben Johnson hadn’t been caught, he would still be the 100 meters record holder.Discovering: mixed ConditionalIf he had broken that record, he would be a world famous runner now
3rd conditional2nd conditional 3rd conditional 2nd conditional Discovering: mixed ConditionalDiscovery 1
The Pattern of the Mixed ConditionalHad done had donewould (could/ should/ might) + do did / wereWould….
+have doneDiscovering: mixed ConditionalEx: If they hadn’t invited me to the party, I wouldn’t be here.
They invited me to the party so I am here.
1. If peter was a more skillful player, he would have scored more points
Peter is not a skillful player, he didn’t score more pointsIf Ben Johnson hadn’t been caught, he would still be the 100 meters record holder
.
Ben was caught , and he is not the 100meters record holderIf he had broken that record, he would be a world famous runner now
.
He didn’t break the record
so he isn’t famous nowDiscovering: mixed ConditionalDiscovery 2
The Meaning of the Mixed ConditionalDiscovering: mixed ConditionalWe use the Mixed Conditional to talk about 假设的过去事件可能对现在的影响
假设的现在事件可能对过去的影响PracticeIf I__________________ all night ,
I _______________tired now.hadn’t workedwouldn’t feel现在过去If I ______ you, I _______________
shopping yesterday.
werewould have gone现在过去１．If I had a dictionary, I would have lent (lend) it to you yesterday.
２．If they had studied ( study) hard, they would be college students now.
３．If Mary hadn’t been caught ( not be catch) in the rain that day, she would not have (not have) a fever now.
４．If I were you，I wouldn’t have missed ( not miss) the film last night．
５．If you had asked ( ask) him when you saw him last time，you would know (know) what to do now．Complete the sentences with the correct form
of the verbs in brackets. According to the Chinese, complete the following sentences .
1.如果他遵照医生的劝告，现在病就好了。
If?he?had followed the?doctor's?advice，he?would?recover?already．
2.如果我当时在学校用功读书，我现在就有一个更好的工作了。
If I had studied harder at school, I would have a better job now.3.如果我不害怕蜘蛛的话，我就会把它抓起来的。
If I wasn’t afraid of spiders, I would have picked it up.
4.要是他们一大早就出发的话，再过半个小时就该到了。
If they had started in the early morning, they would arrive in half an hour．
5.如果昨晚下雨的话，今天就要凉快些了。
If it had rained last night, it would be cooler today. If you had gone to a doctor, you _____ all right now.
are B. were C. would have been D. would be
2. It is hard to imagine what I would be doing today if I ____ in love, at the age of seven, with the Melida Lox Library, in my hometown.
A. wouldn’t have fallen B. had not fallen
C. should fall D. were to fallPractice: third Conditional3. I was very busy yesterday, otherwise I ______ to the meeting.
A. came B. would come
C. had come D. would have come
4. If I ____ with her last summer, I ___ on very well with her now.
worked; am getting
had worked; would get
had worked; would have got
had worked; will get5. If it _____ yesterday, we could play football on the sports ground now.
didn’t snow B. hasn’t snowed
C. hadn’t snowed D. weren’t snowingPractice: third ConditionalHomework
Ex4—5 on page 80
Write a short passage by using
the words ,phrases and conditionals
learnt in class.
(You feel regret at your stupid
mistakes.)