《Let's celebrate!》Period Four PPT

《Let's celebrate!》Period Four PPT

第一部分内容：语法导学

感知以下课文原句，完成方框下的小题

1.That is why Letters from Father Christmas could be the perfect book...

2.The children must have been very excited as they opened it.

3.The letters were also beautifully illustrated—each must have taken its true author...

4.In another letter，Father Christmas complained about how he could not stop his helpers...

5.Interestingly，the letters did not contain the usual warnings to children that they might not...

6....we can all share the true spirit of giving at Christmas time.

1.can与could的用法

(1)表示能力(could是过去式)。

My grandmother can do some shopping on the Internet，but she couldn’t last year.

我奶奶会网购了，但是去年她还不会。 

(2)表示猜测，意为“可能”，一般用于疑问句和否定句(could是过去式)。

Can this news be true？这则消息是真的吗？

(3)表示请求和许可(could表示更委婉的语气，回答时只能用can)。

—Can/Could I go now?

—Yes，you can.

——我现在可以走了吗？

——是的，可以。

(4)用于肯定的陈述句中，表示理论上或习惯上的可能性。

As we all know，anyone can make mistakes.我们都知道，任何人都可能犯错。

(5)习惯用法“cannot...too...”表示“无论怎样……都不过分，越……越好”。有时cannot可用can never替代。

We cannot thank you too much for what you’ve done for us.

对于你们为我们所做的一切，我们怎么感激你们都不过分。

2.may与might的用法

(1)表示允许、许可。might在语气上比may更委婉。以may/might开头的问句在否定回答中要用mustn’t/can’t。

—May/Might I play the computer games after supper?

—Yes，you may./No，you mustn’t/can’t.

——晚饭后我可以玩电脑游戏吗？

——是的，可以。/不，不行。

(2)表示把握不大的推测，意为“可能”，用于肯定句。

might语气更加不肯定，指现在或将来，只有在宾语从句中might do (be)才表示过去的可能性。

①I think he may come tomorrow.我认为明天他可能会来。

②He told me he might be late.他告诉我他可能会迟到。

(3)may用于祈使句表示祝愿。

May you succeed.祝你成功。

... ... ...

Let's celebrate! PPT，第二部分内容：达标检测

Ⅰ.用适当的情态动词或所给动词的正确形式填空

1.I______________come to the party with you，but I am not sure about it.

2.I heard you bought a new book.________I have a look at it?

3.You________try telephoning Mr Smith; he________be home now.

4.It is a pity that he________break a leg just before we go on holiday.

5.Look！The road is wet.It________________(rain) last night.

6.Her eyes are red.She________________(be) crying last night.

7.You________________(see) the famous film Wolf Warrior Ⅱ as you know so much about the plot(情节).

8.When I was a child，I ________ watch TV whenever I wanted to.

Ⅱ.完成句子

9.I can’t find my purse.I________________________(可能把它忘在) in the supermarket yesterday，but I’m not sure.(2018·天津)

10.In today’s information age，the loss of data ________________________(能引起严重的问题) for a company.(2018·北京)

11.You________________ (一定小心) the camera.It costs！(2015·四川)

12.You ________ (可能感到) all the training a waste of time，but I’m a hundred percent sure later you’ll be grateful you did it.(2015·陕西)

13.It was so noisy that we________(不能听到) ourselves speak.(2015·浙江)

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