外研版（2019）必修第二册 Unit 2 Let's Celebrate! Using language 课件（23张PPT）
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| 名称 | 外研版（2019）必修第二册 Unit 2 Let's Celebrate! Using language 课件（23张PPT） |  | |
| 格式 | zip | ||
| 文件大小 | 73.0MB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 外研版（2019） | ||
| 科目 | 英语 | ||
| 更新时间 | 2022-12-03 20:38:31 | ||
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(共23张PPT)
1. The words in bold indicate possibility.
2. If we replace "could" with "must", the meaning of sentence (a) will change. It means the speaker is quite sure about the statement. if we replace "could" with "might", the meaning of sentence (a) will remain more or less the same. "Could" and "might" in affirmative sentences have a similar meaning when indicating possibility.
3. If we change must" in sentence (b) into "could", it means the speaker is not sure about the statement, and it's only a possibility. If we change "might" in sentence (c) into "could", it means it's impossible for the children to receive their presents.
The children must have been very excited as they opened it.
The children could have been very excited as they opened it.
… they might not receive their presents if they were not good.
… they could not receive their presents if they were not good.
……
sure
not so sure
possible
impossible
情态动词 对现在和未来的推测 对过去的推测 使用句型
Must Must+动词原形 Must have done 肯定句
May/might May/might+动词原形 May/might have done 肯定句，否定句
Can/could Can/could+动词原形 Can/could have done 否定句，疑问句（could可用于肯定句）
should 用来表示一种估计的情况“按理会+估计会”should + do/be Should have done 肯定句，否定句，疑问句
表推测时，英语中只使用must, may, might, may not和can't这五个表达的语气依次递减： must：一定（语气肯定） may：也许（不很肯定） might：或许（比may语气更弱） may not：也许不（表否定） can't：一定不（must的反义）
情态动词+动词原形
1)can+动词原形
A.用于肯定句,表示客观可能性,意为“可能”,即从理论上看是可能的,但不一定会发生。例如:
As a human being, anyone can make a mistake.
作为人类,任何人都有可能犯错。
B.用于否定句或疑问句,表示对现在的动作或状态进行主观的猜测,意为“可能”,或表示惊异、怀疑等态度。例如:
a. He can't have a lot of money. 他不可能有很多钱。
b Can it be that it was l, not he, who was mistaken
难道是我弄错了,而不是他弄错了
情态动词表推测的用法
情态动词+动词原形
2)may+动词原形,表示主观的推测,意为“或许”,用于肯定句和否定句均可。例如:
a. He may be very busy now. 他现在可能很忙。
b. He may not be at home. 他可能不在家。
注意:表示可能性时,can't语气较强,表示“不可能”; may not语气较弱;表示“可能不,或许不”。
3) might+动词原形,表示推测,意为“可能",可以指过去的情况,也可以指现在的情况,但语气比may更加不肯定。用于肯定句或否定句均可。例如:
a. They might have a lot of work to do now but I'm not sure.
他们现在可能有很多活儿要干,不过我不确定。
b. She was afraid they might not like the idea. 她担心他们可能不喜欢这个想法。
情态动词表推测的用法
情态动词+动词原形
4)could+动词原形,意为“可能”,可以指过去的情况,也可以指现在的情况,语气缓和。多用于否定句或疑问句。例如：
a. He looks young. He couldn't be over 50. 他看起来很年轻,不可能超过50岁。 b. Could it be true 那可能是真的吗
5)must+动词原形,表示猜测,意为“准是,一定”,通常用于肯定句。例如：
a. This must be your room. 这一定是你的房间。
b Look at his new car. He must have a lot of money. 瞧他那辆新车。他肯定很有钱。
情态动词表推测的用法
情态动词+完成式
1)must+完成式,表示对已发生情况的推测,通常用于肯定句。例如:
She must have gone home. 她肯定已经回家了。
2)can+完成式,表示对已发生情况的推测,主要用于否定句或疑问句。
例如：
a. You can't have forgotten her. 你不可能已经忘记她了。
b. Where can she have put it 她到底把它放在哪儿了呢
情态动词表推测的用法
情态动词+完成式
3) could+完成式,表示对过去情况的推测,多用于否定句或疑问句。
例如：
a. He could not have been more than 16 at that time. 他当时不可能超过16岁。
b Could she have forgotten my address 她会忘记我的地址吗
4)may/ might+完成式,表示对已发生事情的不肯定的推测,mght相比may语气更加不肯定。
例如：
He may / might have come by train. 他可能是坐火车来的。
情态动词表推测的用法
You must be tired now!
It may/might/could be him.
be Lucy.
That must
may / might / could be from our school.
They
that can’t be Lucy.
Possible versions:
The woman in red must be very excited to buy so many things.
The man with a wallet in his hand might be a bit reluctant to pay.
The woman with glasses may be very tired to get up so early and carry so many bags.
The cashier might be feeling uncomfortable as he is sweating a lot.
a scarf
a red envelope
rice balls
balloons
posters
hold a lantern fair
let off fireworks
hold a lantern riddles
competition
a dress
chocolates
dumplings
noodles
banners
flowers
parade
have a reunion dinner
Assignment:
Introduce the Lantern Festival to Mr. and Mrs. White, who are interested in traditional Chinese culture, and invite them to join you to celebrate it.
Dear Mr. and Mrs. White,
I’m sure you must have heard of the Spring Festival, which is the most important festival in Chinese culture. However, the Lantern Festival may sound unfamiliar to you. Please allow me to introduce it to you.
The Lantern Festival is celebrated on the fifteenth day of the first month in the lunar calendar. It marks the final day of the traditional Chinese New Year
celebrations. During the festival, we decorate our houses with posters and Chinese paper-cuts. We hold lantern riddles competitions and firework displays with thousands of people taking part in these celebrations. However, it is the busiest time for the traffic police because the lantern fair attracts a lot of people every year.
On the Lantern Festival, families gather to enjoy a
big dinner, watch the Lantern Festival Gala, and catch up on each other’s recent life.
Would you like to come to celebrate the Lantern Festival with us, and experience the festive atmosphere by yourself If you can make it, I’m sure you can have a lovely memory of it.
Yours, sincerely
To celebrate the Mid-Autumn Day, we usually have a few days off. It is a great occasion for a family to get together. During the festival, we often drink some wine. Besides, there is a kind of traditional Chinese food—moon cakes. The whole family usually admire the moon as they eat moon cakes. People often visit their friends and relatives with some delicious moon cakes and some fresh fruits. This festival is one of the most important festivals in China, which is held to celebrate the harvest, so no matter how busy they are, people usually have a thorough cleaning and decorate their house with some beautiful pictures about moon and so on.
1. The words in bold indicate possibility.
2. If we replace "could" with "must", the meaning of sentence (a) will change. It means the speaker is quite sure about the statement. if we replace "could" with "might", the meaning of sentence (a) will remain more or less the same. "Could" and "might" in affirmative sentences have a similar meaning when indicating possibility.
3. If we change must" in sentence (b) into "could", it means the speaker is not sure about the statement, and it's only a possibility. If we change "might" in sentence (c) into "could", it means it's impossible for the children to receive their presents.
The children must have been very excited as they opened it.
The children could have been very excited as they opened it.
… they might not receive their presents if they were not good.
… they could not receive their presents if they were not good.
……
sure
not so sure
possible
impossible
情态动词 对现在和未来的推测 对过去的推测 使用句型
Must Must+动词原形 Must have done 肯定句
May/might May/might+动词原形 May/might have done 肯定句，否定句
Can/could Can/could+动词原形 Can/could have done 否定句，疑问句（could可用于肯定句）
should 用来表示一种估计的情况“按理会+估计会”should + do/be Should have done 肯定句，否定句，疑问句
表推测时，英语中只使用must, may, might, may not和can't这五个表达的语气依次递减： must：一定（语气肯定） may：也许（不很肯定） might：或许（比may语气更弱） may not：也许不（表否定） can't：一定不（must的反义）
情态动词+动词原形
1)can+动词原形
A.用于肯定句,表示客观可能性,意为“可能”,即从理论上看是可能的,但不一定会发生。例如:
As a human being, anyone can make a mistake.
作为人类,任何人都有可能犯错。
B.用于否定句或疑问句,表示对现在的动作或状态进行主观的猜测,意为“可能”,或表示惊异、怀疑等态度。例如:
a. He can't have a lot of money. 他不可能有很多钱。
b Can it be that it was l, not he, who was mistaken
难道是我弄错了,而不是他弄错了
情态动词表推测的用法
情态动词+动词原形
2)may+动词原形,表示主观的推测,意为“或许”,用于肯定句和否定句均可。例如:
a. He may be very busy now. 他现在可能很忙。
b. He may not be at home. 他可能不在家。
注意:表示可能性时,can't语气较强,表示“不可能”; may not语气较弱;表示“可能不,或许不”。
3) might+动词原形,表示推测,意为“可能",可以指过去的情况,也可以指现在的情况,但语气比may更加不肯定。用于肯定句或否定句均可。例如:
a. They might have a lot of work to do now but I'm not sure.
他们现在可能有很多活儿要干,不过我不确定。
b. She was afraid they might not like the idea. 她担心他们可能不喜欢这个想法。
情态动词表推测的用法
情态动词+动词原形
4)could+动词原形,意为“可能”,可以指过去的情况,也可以指现在的情况,语气缓和。多用于否定句或疑问句。例如：
a. He looks young. He couldn't be over 50. 他看起来很年轻,不可能超过50岁。 b. Could it be true 那可能是真的吗
5)must+动词原形,表示猜测,意为“准是,一定”,通常用于肯定句。例如：
a. This must be your room. 这一定是你的房间。
b Look at his new car. He must have a lot of money. 瞧他那辆新车。他肯定很有钱。
情态动词表推测的用法
情态动词+完成式
1)must+完成式,表示对已发生情况的推测,通常用于肯定句。例如:
She must have gone home. 她肯定已经回家了。
2)can+完成式,表示对已发生情况的推测,主要用于否定句或疑问句。
例如：
a. You can't have forgotten her. 你不可能已经忘记她了。
b. Where can she have put it 她到底把它放在哪儿了呢
情态动词表推测的用法
情态动词+完成式
3) could+完成式,表示对过去情况的推测,多用于否定句或疑问句。
例如：
a. He could not have been more than 16 at that time. 他当时不可能超过16岁。
b Could she have forgotten my address 她会忘记我的地址吗
4)may/ might+完成式,表示对已发生事情的不肯定的推测,mght相比may语气更加不肯定。
例如：
He may / might have come by train. 他可能是坐火车来的。
情态动词表推测的用法
You must be tired now!
It may/might/could be him.
be Lucy.
That must
may / might / could be from our school.
They
that can’t be Lucy.
Possible versions:
The woman in red must be very excited to buy so many things.
The man with a wallet in his hand might be a bit reluctant to pay.
The woman with glasses may be very tired to get up so early and carry so many bags.
The cashier might be feeling uncomfortable as he is sweating a lot.
a scarf
a red envelope
rice balls
balloons
posters
hold a lantern fair
let off fireworks
hold a lantern riddles
competition
a dress
chocolates
dumplings
noodles
banners
flowers
parade
have a reunion dinner
Assignment:
Introduce the Lantern Festival to Mr. and Mrs. White, who are interested in traditional Chinese culture, and invite them to join you to celebrate it.
Dear Mr. and Mrs. White,
I’m sure you must have heard of the Spring Festival, which is the most important festival in Chinese culture. However, the Lantern Festival may sound unfamiliar to you. Please allow me to introduce it to you.
The Lantern Festival is celebrated on the fifteenth day of the first month in the lunar calendar. It marks the final day of the traditional Chinese New Year
celebrations. During the festival, we decorate our houses with posters and Chinese paper-cuts. We hold lantern riddles competitions and firework displays with thousands of people taking part in these celebrations. However, it is the busiest time for the traffic police because the lantern fair attracts a lot of people every year.
On the Lantern Festival, families gather to enjoy a
big dinner, watch the Lantern Festival Gala, and catch up on each other’s recent life.
Would you like to come to celebrate the Lantern Festival with us, and experience the festive atmosphere by yourself If you can make it, I’m sure you can have a lovely memory of it.
Yours, sincerely
To celebrate the Mid-Autumn Day, we usually have a few days off. It is a great occasion for a family to get together. During the festival, we often drink some wine. Besides, there is a kind of traditional Chinese food—moon cakes. The whole family usually admire the moon as they eat moon cakes. People often visit their friends and relatives with some delicious moon cakes and some fresh fruits. This festival is one of the most important festivals in China, which is held to celebrate the harvest, so no matter how busy they are, people usually have a thorough cleaning and decorate their house with some beautiful pictures about moon and so on.