经典英语资料2.2 Using langrage 课件(1).pptx
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1、外研版外研版英语 必修第二册Unit 2 Lets celebrate!Period 2 Using language Revision indicatewaveattractdecoraterequestguylanternfireworkriddledessertcompetitionhostfancyformalWords v.表明,显示表明,显示v.挥手,招手挥手,招手v.吸引,引起吸引,引起的兴趣的兴趣v.装饰,布置,美化装饰,布置,美化v./n.请求,要求请求,要求n.男子男子n.灯笼灯笼n.烟火,烟花烟火,烟花n.谜,谜语谜,谜语n.甜食,甜点甜食,甜点n.比赛,竞赛比赛,竞赛n
2、.东道主,主人东道主,主人adj.花哨的,别致的花哨的,别致的adj.正式的正式的 Revision1 People(have to/neednt)eat meat every day,but many people do.2 Most chefs(are able to/have to)cook a wide variety of dishes.3 My mum spent hours preparing this meal,so I(neednt/had better)finis4 Seafood makes Jessica sick,so she(dare not/had better)
3、eat it.5 Carl(has to/is able to)eat breakfast or he gets very hungry at schoolUnderline the correct modals Underline the correct modals to complete the sentencesto complete the sentences.Activity 1 Revision a That is why Letter from Father Christmas could be the perfect bookb The children must have
4、been very excited as they opened it.c they might not receive their presents if they were not good.Look at the sentences from the reading passage and answer the questions.What do the words in blue indicate:an order,a request,ability or What do the words in blue indicate:an order,a request,ability or
5、possibility?possibility?Activity 1 Revision a That is why Letter from Father Christmas could be the perfect bookb The children must have been very excited as they opened it.c they might not receive their presents if they were not good.Look at the sentences from the reading passage and answer the que
6、stions.Will the meaning of sentence(a)change it we replace“could”with Will the meaning of sentence(a)change it we replace“could”with“must”?“must”?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 replacecouldwith might,th
7、e meaning of sentence(a)will remain more or less the same.Could”and might in affirmative sentences have a similar meaning when indicating possibility.Activity 1 Revision a That is why Letter from Father Christmas could be the perfect bookb The children must have been very excited as they opened it.c
8、 they might not receive their presents if they were not good.Look at the sentences from the reading passage and answer the questions.What happens if we change“must”and“might”in sentence(b)and(c)into“could”?If we changemust in sentence(b)into“could,it means the speaker is not sure about the statement
9、,and its only a possibility.If we change might in sentence(c)into could,it means its impossible for the children to receive their presents.Activity 1 RevisionNow look for more sentences with modals in the text.The children must have been very excited as they opened it.The children could have been ve
10、ry 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.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
11、测,意为“可能”,或表示惊异、怀疑等态度。例如:a.He cant 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?情态动词表推测的具体用法情态动词表推测的具体用法 Activity 1 Summary 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,ca
12、nt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 Im 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。情态动词表推测的具体用法情态动词表推测的具体用法 Activity 1 Summary 情态动词+动
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