2021版外研版必修二英语Unit 2 Let’s celebrate Period 3 Using language 学案.docx

1、Period 3 Using language 学习目标 1.To master the basic usage of modal verbs to express speculation,and be able to correctly use modal verbs in the real context. 2.To understand “Black Friday” and broaden your knowledge. 3.To summarize the expressions of various celebrations during the festival,and learn

2、 to describe the festival. 4.To send and accept invitations politely. 课堂探究 Step 1:课前自学 一、知识梳理 Activity 1 1.Look at the sentences from the reading passage and answer the questions. a That is why Letters from Father Christmas could be the perfect book. b The children must have been very excited as the

3、y opened it. c .they might not receive their presents if they were not good. (1) What do the words in bold indicate: an order,a request,ability or possibility? (2) Will the meaning of sentence (a) change if we replace “could” with “must” or “might”? (3) What happens if we change “must” and “might” i

4、n sentences (b) and (c) into “could”? 2.Look for more sentences with modals in the reading passage. 二、学习主要用法 本单元所学的情态动词表示推测的具体用法如下。 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/mi ght may/migh t + 动词 原形 may/migh t have done 肯定句、否定句 can/cou ld can/could +动词原 形 can/could have

5、 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 例句: (1)It must have rained last night. (2)She may not be at home.= It is possible that she is not at home. (3)She cant be at home.= It is impossible that she is at home. (4)They should be there rig

6、ht now. 表推测时,英语中只使用 must,may,might,may not 和 cant。 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) cant:一定不(must 的反义) Step 2:Practice 1.Whose earrings are these? They be Marys.She wears earrings sometimes. 2.Carls come to the party tonight,but Im not sure. 3.The telep

7、hone is ringing,but nobody answers it,he be at home. 4.Is this Lan Qiangs boxing glove? Yes,it be his.This is his name on the back. 5.Youd better take an umbrella.It rain this afternoon. 6.Its the library! So you know shouting is not allowed here. 7.Have you decided where to spend your summer holida

8、y? Not yet.We go to Qingdao. 8.Is Jessica giving us a speech this evening? No,it be her.She has gone to Japan. 9.What will the weather be like tomorrow? It be rainy,cloudy or sunny.Who knows? 10.You be tired after playing sports for a long time without a rest. Step 3:Activity 2 and 3 1.Rewrite the u

9、nderlined sentences in the conversation using can/could ,may/might and must. (At a fancy dress party.) Chris:I spent ages putting up all the balloons and flowers last night. Jean:I expect you are feeling tired now! Chris:Yes,I am.Look,that guy is dressed as Batman.Is that Mike? Jean:Its possibly him

10、. Check out that girl over there.Im sure thats Lucy. Chris:No,I dont think thats Lucy.Lucy isnt that tall. Jean:Look at those two guys dressed as chickens!Oh,theyre waving at us!Maybe theyre from our school. Chris:Lets go and find out. 2.Look at the picture and make as many sentences as possible usi

11、ng can/could,may/might and must. Step 4: Activity 4:Lantern Festival celebrations Underline the words and expressions about celebrations during the Lantern Festival in the speech bubbles and complete the mind map. Step 5: Activity 5:Practice 1.Draw a mind map to collect expressions about a festival

12、celebration. 2.Describe the festival celebration based on the mind map. Step 6:A festival invitation 1.If you receive a written invitation for formal events,which of the following would be the appropriate reply? A.Making a phone call. B.Sending a text. C.Writing a letter. 2.Which of the following be

13、haviors is most likely to be inappropriate when you visit somebody? A.Arriving on time. B.Arriving half an hour earlier. C.Arriving twenty minutes late. Step 7: Activity 6:Listening Listen to the conversation and complete the sentences with the correct ending. 1.Tony would like to . 2.Hugo wants to

14、find out . 3.On that day they will . a.go to Hugos apartment to give thanks b.invite Hugo to his apartment to celebrate Thanksgiving c.what he needs to bring to the party d.what he should say at the party e.go shopping together and watch the parade f.watch an American football game on TV Step 8: Act

15、ivity 7:Listening Listen again and complete the notes. Occasion: a 1. party When: the fourth 2. in 3. Where: Tonys 4. What to eat: a 5. with all the side dishes and homemade 6. What to bring: some flowers or 7. What to wear: 8. Step 9: Listen again and talk about what the speakers say to extend and

16、accept an invitation. Step 10: Work in pairs.Act out the conversation about extending and accepting an invitation. Student A: Turn to Page 81. Student B: Turn to Page 85. Work in pairs.Think about a similar situation and have a conversation. 课后练习 Summarize the proper ways of extending and accepting

17、an invitation. 参考答案 课堂探究 Step 1:1.(1) 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 “mig

18、ht” 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 its only a possibility. If we change “might” in sentence (c) into “could”, it means its impossible for the c

19、hildren to receive their presents. 2.The children must have been very excited as they opened it. .they might not receive their presents if they were not good. . Step 2:1.may/could/might 2.may/could/might 3.cant 4.must 5.may/could/might 6.must 7.may 8.cant 9.might 10.must Step 3:1.You must be tired now! It may/might be him. That must be Lucy. That cant be Lucy. They may/might be from our school. Step 4: Step 5:略 Step 6:1.C 2.C Step 7:1.b 2.c 3.f Step 8:1.Thanksgiving 2.Thursday 3.November 4.apartment 5.big turkey 6.apple pie 7.candies 8.anything you like