Unit 2 Let’s celebrate! 语法情态动词 课件-2025-2026学年高中英语外研版必修第二册

Hey there, welcome to life login. So the holidays are right around the corner. And with that, for most comes holiday shopping. Unless me, I don't really need to buy things, they just kind of appear. See, many people wait until black friday to do all of their holiday shopping, because that's when most of what they want is on sale. But where did this day come from? How was IT gotten to be what IT is today? Let's find out. The friday after thanksgiving was coined the black friday in the nineteen sixties to kick off. The holiday shopping season in amErica is basically on holiday. The black and black friday refers to stores moving from a loss to a profit, po counting and black ink a profit. But who decided that this day was the day to kick IT all off? The answer, retailers, many retailers didn't set up holiday displays or advertise the day sales until after think's giving was over. IT was a way to get people to immediately start spending after the turkey plus a was over. Stores sponsor thanksgiving parade, like the macy parade, are still come into this day, times santa would appear at the end of the parade. And santa is really good at getting people in the holiday spirit. Black friday became what IT is today because we keep buying into IT. I bet you to know that back in the day when F. D. R was president. Think's giving was actually the last thursday of november. And since the following friday Marks the beginning of the holiday shopping season, they weren't as many days for people to do their. In one thousand thirty nine, president roosevelt changed the official data, thanks giving to the second to last thursday, november, instead of the last, this move length in the holiday shopping season. And his hope is that the change would boost sale for retailers, while in turn boosting the economy. Many people were stuck in their traditions, however. So roseville signed a bill to officially make thanksgiving, the fourth november. Nearly one hundred and thirty five million people shop on black friday each year, argue one of them. What are you hoping to get for a rest? Mahaney quanzhou sure. You come back every monday for a brand new video. Don't forget to keep on thinking. Book2 Unit2 Period3 Model verbs Pair work. Observe and answer: Who do you think is the killer? Why? 1 Using the model verbs: must, can/could, may/might A women might have been killed in a restaurant. The case couldn’t have been a suicide自杀. There were four suspects, and one of them must be the killer. The woman must have offened得罪 someone. crime scene犯罪场景 Pair work. Observe and answer: Who do you think is the killer? Why? 1 We couldn’t get much information about him. He may be the killer. He may not. No.1 Suspect嫌疑犯1 may用于肯定句的猜测。可能性为50% Pair work. Observe and answer: Who do you think is the killer? Why? 1 There was a knife on his table. He couldn’t be the killer. No.2 Suspect嫌疑犯2 can /could 表怀疑常用于否定句或疑问句中。can’t 可能性为0%。 Pair work. Observe and answer: Who do you think is the killer? Why? 1 She could enter ladies room easily. She had a bag, so she could hide the knife in her bag. She might be the killer. No.3 Suspect嫌疑犯3 might用于肯定句的猜测。可能性比may小，为30%。 Pair work. Observe and answer: Who do you think is the killer? Why? 1 His knife wasn’t on his table. There was a scar on his neck. He must be the killer. No.4 Suspect must 表示推测时， 只能用于肯定句。可能性为100%。 Pair work. Observe and answer: Who do you think is the killer? Why? 1 No.4 Suspect can/could have done 本可以做某事 I could have talked with her peacefully. Presentation. 情态动词表推测 1 must, can, could, may, might 情态动词表推测 情态动词+动词原形 情态动词+完成式 （表示对目前的动作或状态进行推测） （表示对已发生情况的推测） 情态动词must, can/could, may/might均可表示推测, 它们可以对过去、现在或将来的情况作出语气强弱不同的推测。 Presentation. 情态动词表推测 1 过去 现在 must must have done 过去一定 一定(可能性100%) could could have done 本可以 can’t/couldn’t can’t/couldn’t have done过去一定不 一定不(可能性0%) may/might may/might have done可能已经 可能(可能性50%) 表示肯定的推测时：语气从弱到强依次为might → may → could → can → must； 表示否定的推测时：can’t / couldn’t语气较强，意为“不可能”； may not / might not语气较弱，意为“可能不”。 must have done 过去一定。表示对已经发生的事情的肯定推测，语气较强。 eg It must have rained last night. The ground is wet. may / might have done 可能已经。表示对已经发生过的情况的肯定推测，语气稍弱。 eg He may / might have given you more help, even though he was busy. Presentation. 情态动词表推测 1 could have done 过去一定不。表示对过去发生的一不定推测。 eg They can’t have gone out, because the light is on. can’t / couldn’t have done 本可以。表示过去本来能够做某事而实际上没有做 eg He could have passed the exam, but he was too careless. Presentation. 情态动词表推测 1 Practice. Recognize the words. 1 They may/might/could be from our school. You must be tired now! It may/might/could be him. That must be lucy. that can't be Lucy. wave at 招手 be dressed as 乔装打扮 fancy dress party Batman bride word band Practice. Read the dialogue and answer the questions. 1 1. Why don't Chris and Jean recognize their friends? 2. Who is dressed as Batman? Because their frinends wear the fancy dress. Maybe Mike is dressed as Batman. Practice. Rewrite the underlined sentences using can /could, may / might and must. 1 They may/might/could be from our school. You must be tired now! It may/might/could be him. That must be lucy. that can't be Lucy. 1. Why don't Chris and Jean recognize their friends? 2. Who is dressed as Batman? Because their frinends wear the fancy dress. Maybe Mike is dressed as Batman. Exercises. 根据句意，用情态动词的正确形式填空。 1 I don't know where she is, she _____ be in Pinggao. Philip ________________________(be hurt) seriously in the car accident. ——Linda has gone to work, but her bicycle is still here. ——She _____________________ (go) by bus. Mike _______________(find) his car, for he came to work by bus this morning. He looks young. He ____________ be over 50. She was ill. She___________________(attend) the meeting here. may may (might) have been hurt may (might) have gone can’t have found can’t/couldn’t couldn't have attended Viewing. Have you ever heard of “Black Friday”? 1 Black Friday is one of the busiest shopping days of the year. Stores have big sales and open their doors very early. Production. Look at the picture and make as many sentences as possible using can/could, may/might and must. 1 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. ... Black Friday is one of the busiest shopping days of the year. Stores have big sales and open their doors very early. Production. Look at the picture and make as many sentences as possible using can/could, may/might and must. 1 Have you ever heard of “Black Friday”? Goodbye Lavf61.7.100 Bilibili VXCode Swarm Transcoder v0.3.42 $