高一英语课件：Healthy Eating Grammar Model Verbs.pptVIP

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高一英语课件：Healthy Eating Grammar Model Verbs.ppt

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Grammar Modal verbsⅡ 情态动词 Unit2.book3 RevisionTell the functions of the modal verbs. You must go. You have to go . You mustn’t go . You don’t have to go . You can use my phone if you want . Paris can be very hot in summer. The chicken must be cooked thoroughly. You have to book in advance. Visitors must remove all footwear before entering. I will see you tomorrow. That may/might be a better thing to do. Calculators may not be used in the examination. May I be excused? The children shouldn’t/oughtn’t to drop litter on the floor. He should/ought to cycle to work, the exercise would be good for him. The letter should/ought to arrive by Friday. Modal Verb Drill POSSIBLE IMPOSSIBLE CERTAIN We go out. (CERTAIN) We’ll go out. We stay at home. (IMPOSSIBLE) We can’t stay at home. We go to the cinema. (POSSIBLE) We might go to the cinema. 1.I have a drink. (CERTAIN) 2.I have coffee. (IMPOSSIBLE) 3.I have tea. (POSSIBLE) 4.We work tonight. (POSSIBLE) 5.You work tonight. (IMPOSSIBLE) 6.I work tonight. (CERTAIN) 7.I go home. (necessity) 8.We look after the old. (duty/obligation) 9.We do the work right now. (suggestion) 10.We are late. (prohibition) Reformulate(改写) the following sentences using modal verbs Match the Answers to the Questionsand study the modal verbs. Modal verbs+have+past participle May/might + have + past participle can be used to talk about a possible event in the past, e.g. 1.Do you think Amy might have arrived by now? sometimes be used to talk about a possible event occurring before a time in the future, e.g. 2.It might have been sold by the time we get there. Must + have + past participle is used to draw a conclusion(得出结论,推论) about something that happened in the past, e.g. 1.I heard that your dog died. It must have been very upsetting. Should/ought to + have + past participle is often used to talk about something that didn’t happen and the speaker feels sorry that it didn’t happen, e.g. 1.We should/ought to have