英语高二下北师大版Unit21《Human Biology》(Lesson 1)课件4
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| 名称 | 英语高二下北师大版Unit21《Human Biology》(Lesson 1)课件4 |  | |
| 格式 | zip | ||
| 文件大小 | 256.0KB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 北师大版 | ||
| 科目 | 英语 | ||
| 更新时间 | 2013-03-11 21:02:00 | ||
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课件26张PPT。Chewing GumDiscuss in pairs and answer
the following questions.1. What do you think of chewing gum? Is it good or bad for you?
2. Do you or your friends /family buy it? Why?
3. What do you do after chewing it?
Look at the title of the magazine article and predict which issues may be covered in the article. Then read the article quickly and see if any of your guesses are right? It is about whether chewing gum is good or bad for you.
Read the text quickly and divide it into four parts , then summarize the main topic of each part.
Part 1(paragrah --- )
Part 2(paragraph --- )
Part3(paragraph --- )
Part4(paragraph --- )IntroductionBenefits of chewing gumThe negative side of chewing gumBetter activities than chewing gum11245788Read the article againand complete the table!fightprevent/stoplosegive upmore difficultstomachsicknessbrushingtheir teethsickness or headachesHow serious is the problem of bad breath?
What is added to sugar-free chewing gum which may help prevent tooth problems?
According to one research project, what is one way of burning 70 kilocalories?
What would be the effect on the stomach of constant chewing?
What other activities are stated that are better than chewing gum?Ask & AnswerMatch the conditional sentences in italics in the text with the following types:
zero conditional
1st conditional
2nd conditional
3rd conditionalGrammarWhich of the sentences in italics talk about the past, the present and the future?Read the sentences. Do they describe situations that are:
True or could possibly happen?
Imaginary, unreal or contrary to facts?If he has time, he will come.
We won’t succeed unless we plan well.
(unless= if---not)
从句用一般现在时或现在完成时， 主句用一般将来时If I were a millionaire, I would buy a big house.
If I were the girl in the story, I would call the police at once.
Tomorrow I will go to USA. If I were in China, I would make dumplings with you.
I was on my own yesterday. If they had invited me, I would have gone to the party.
I went to library yesterday. If I had went to the concert, I would have taken photos with the singers.
He had traffic accident yesterday. If he had driven more carefully, he would have arrived home safely.如果过去天气好一些， 现在庄稼还会长得更好。
If the weather had been more favourable, the crops would be growing still better.
(注意：白字代表过去， 黄字代表现在或将来)要是大夫昨晚来得早一点， Amy 今天还活着。
If the doctor had come sooner last night, Amy would be alive today.
如果他多得六票， 他现在就是我们的主席。
If he had received six more votes, he would be our chairman now. 1. If you ____ at school, you ____ a college student now.
A. had studied hard; would have been
B. should have studied hard; should have been
C. had studied hard; would be
D. would study hard; must have been2. ____ you ____ to the teacher, you ___ how to use the idioms now.
A. Had, listened, would know
B. If, listen, know
C. If, had listened, would have known
D. Had, listened, know3. If he missed the bus, he _____ to school on foot.
A. would go B. went
C. would have gone D. had gone
4. Had I known her name, ______.
A. or does she know mine
B. she would come here
C. I would have invited her to lunch
D. she had come5. ---Did you hear what Jack said to his parents?
---Yes, and I ____ talk that way if I ____ Jack.
A. won’t, am B. wouldn’t, were
C. couldn’t, were D. didn’t, were
6. He ___ you if you ____ to see him this afternoon.
A. might tell, went
B. might tell, are going
C. might have told, went
D. should tell, will have gone7. It ____ a different matter now if you ____ his advice.
A. is, had followed B. was, followed
C. might be, had followed
D. might be, followed
8. The soldier died in the hospital. He ___ if the doctor ____ on him two hours before.
A. might be saved, operated
B. could have been saved, had been operated
C. could be saved, had operated
D. could have been saved, had operated---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 takenI 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
You didn’t let me drive. If we ____ in turn you _____ so tired.
A. drove; didn’t get B. drove; wouldn’t get
C. were driving; wouldn’t get
D. had driven; wouldn’t have get
Bye bye!
the following questions.1. What do you think of chewing gum? Is it good or bad for you?
2. Do you or your friends /family buy it? Why?
3. What do you do after chewing it?
Look at the title of the magazine article and predict which issues may be covered in the article. Then read the article quickly and see if any of your guesses are right? It is about whether chewing gum is good or bad for you.
Read the text quickly and divide it into four parts , then summarize the main topic of each part.
Part 1(paragrah --- )
Part 2(paragraph --- )
Part3(paragraph --- )
Part4(paragraph --- )IntroductionBenefits of chewing gumThe negative side of chewing gumBetter activities than chewing gum11245788Read the article againand complete the table!fightprevent/stoplosegive upmore difficultstomachsicknessbrushingtheir teethsickness or headachesHow serious is the problem of bad breath?
What is added to sugar-free chewing gum which may help prevent tooth problems?
According to one research project, what is one way of burning 70 kilocalories?
What would be the effect on the stomach of constant chewing?
What other activities are stated that are better than chewing gum?Ask & AnswerMatch the conditional sentences in italics in the text with the following types:
zero conditional
1st conditional
2nd conditional
3rd conditionalGrammarWhich of the sentences in italics talk about the past, the present and the future?Read the sentences. Do they describe situations that are:
True or could possibly happen?
Imaginary, unreal or contrary to facts?If he has time, he will come.
We won’t succeed unless we plan well.
(unless= if---not)
从句用一般现在时或现在完成时， 主句用一般将来时If I were a millionaire, I would buy a big house.
If I were the girl in the story, I would call the police at once.
Tomorrow I will go to USA. If I were in China, I would make dumplings with you.
I was on my own yesterday. If they had invited me, I would have gone to the party.
I went to library yesterday. If I had went to the concert, I would have taken photos with the singers.
He had traffic accident yesterday. If he had driven more carefully, he would have arrived home safely.如果过去天气好一些， 现在庄稼还会长得更好。
If the weather had been more favourable, the crops would be growing still better.
(注意：白字代表过去， 黄字代表现在或将来)要是大夫昨晚来得早一点， Amy 今天还活着。
If the doctor had come sooner last night, Amy would be alive today.
如果他多得六票， 他现在就是我们的主席。
If he had received six more votes, he would be our chairman now. 1. If you ____ at school, you ____ a college student now.
A. had studied hard; would have been
B. should have studied hard; should have been
C. had studied hard; would be
D. would study hard; must have been2. ____ you ____ to the teacher, you ___ how to use the idioms now.
A. Had, listened, would know
B. If, listen, know
C. If, had listened, would have known
D. Had, listened, know3. If he missed the bus, he _____ to school on foot.
A. would go B. went
C. would have gone D. had gone
4. Had I known her name, ______.
A. or does she know mine
B. she would come here
C. I would have invited her to lunch
D. she had come5. ---Did you hear what Jack said to his parents?
---Yes, and I ____ talk that way if I ____ Jack.
A. won’t, am B. wouldn’t, were
C. couldn’t, were D. didn’t, were
6. He ___ you if you ____ to see him this afternoon.
A. might tell, went
B. might tell, are going
C. might have told, went
D. should tell, will have gone7. It ____ a different matter now if you ____ his advice.
A. is, had followed B. was, followed
C. might be, had followed
D. might be, followed
8. The soldier died in the hospital. He ___ if the doctor ____ on him two hours before.
A. might be saved, operated
B. could have been saved, had been operated
C. could be saved, had operated
D. could have been saved, had operated---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 takenI 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
You didn’t let me drive. If we ____ in turn you _____ so tired.
A. drove; didn’t get B. drove; wouldn’t get
C. were driving; wouldn’t get
D. had driven; wouldn’t have get
Bye bye!