Module3Naturalelements课件.ppt

1、,OxfordEnglish,Module3Naturalelements,Electricity,Grammar,Unit6,学习重点,学习情态动词can、may、must的运用和表达。,学习难点,能熟练运用情态动词can、may、must表达正确的句子。,1、说一说：Howcanwesavewater？,Checking-up,Grammar:Modalverbs,Icanspellallthewordswehavelearnt.Canyoudothat?,Yes,Ican.No,Icannot/cant.,Acanandcannot,Gametime,Whatcanyoudo?Tellt

2、hestudentbehindyouandaskifhe/shecandoit.Thenextstudentshouldrepeatthiswithanotherstudent.,Example:,No,Icant.Icansing.Canyousing?,Yes,Ican.IcanCanyou?,Icanswim.Canyouswim?,课堂探究及课堂练习学习任务一:1、阅读GrammarA部分例句框中的例句，总结情态动词can的基本含义和常见用法：A、can表示具有某种能力，相当于；B、can表示许可，意为可以，相当于，它的否定形式是；C、can构成的一般疑问句的回答形式为CanI?Yes

3、，you；No，you。2、学生朗读GrammarA部分例句，并完成练习，教师和学生一起核对答案。3、学生仿照GrammarA部分例句的句型，小组合作介绍自己的能力。,beableto,may,cant,can,cant,Nowreadthefollowingsentences.,Grammarexercise,can,cannot,cannot,can,cannot,can,can,cannot,3,Agame:whatwouldyousay?,Youwillbegivenseveralsituations.Afterreadingthedescriptionsandlookingatthe

4、pictures,decidewhatyouwouldsayinthesesituations.,a.Amanisgoingtoseehisboss.Heisstandingatthedoorway.,MayIcomein?,b.Astudentisgoingtoasktheteacheraquestion.,MayIaskyouaquestion?,c.Aboyisthirsty.Heisaskinghismotherforsomething.,MayIhavesomewater?,d.Ashopassistantisservingacustomer.,MayIhelpyou?,学习任务二:

5、1、朗读P78B部分的讲解和例句，总结情态动词may的基本含义和常见用法：A、may表示许可或请求对方允许，意为；B、may否定形式是，意为；C、may构成的一般疑问句的回答形式为MayI?Yes，you；No，you。2、学生朗读GrammarB部分例句，并完成练习，教师和学生一起核对答案。3、学生分角色朗读对话。,可以可能或许,maynot,不可以,may,maynot,Weusemayandmaynottoaskforandgivepermission.Inlessformalsituations,somepeopleliketousecanandcannot(cant)forthesa

6、mepurpose.“May”canbeinterchangedwith“can”,butitsalittlemorepolitetouse“may”.,Bmayandmaynot,May/CanIuseyourmobilephone?Yes,youmay/can.No,youmaynot/cant.Youmay/canturnontheTV.Youmaynot/cannotplayinthekitchen.,Readthefollowingsentences.,Grammarexercise,May/Can,May,can,May,Can,4,Cmustandmustnot,学习任务三:1、

7、朗读P79C部分的讲解和例句，总结情态动词must的基本含义和常见用法：A、must用来制定规则或发出命令，意为；B、must否定形式是，意为；C、must构成的一般疑问句的回答形式为MustI?Yes，you；No，you.2、完成教材p79Workouttherule：3、学生朗读GrammarC部分例句，并完成制定规章的练习，教师和学生一起核对答案。,必须,mustnot,不准,must,neednt,Weusemustandmustnot/mustnttotellpeoplewhattodoorwhatnottodo.Readthefollowingsentences.,Youmust

8、not/mustntdothat,Benny!Wemustalwaysbecarefulwithelectricity.Theymustnot/mustntplayneartheheater.,Imustgotobedearly.,Imusttakethemedicineontime.,eatcoldfood,Imustnotgooutalone.,Imustnotsharecupswithothers.,5,Workouttherule,四、要点归纳情态动词的共同特征：位于第三人称单词后时，情态动词后不可以加；情态动词后接动词；助动词do、does、did不可用在含有情态动词的疑问句或句中。,-s,原形,否定,五、拓展提高1、maybe与maybe的区别：maybe是“情态动词+系动词be”结构，表示“可能是”，而Maybe作副词，表示“大概、也许”。例如：Heintheroom.heisintheroom.,maybe,Maybe,2、根据下面提示，写一写育英中学的校规。提示：学生必须穿校服。学生不许在教室里吃东西。学生离校时必须关灯。学生在图书馆吵闹。学生不许打架。YuyingMiddleSchoolRules,H,Homework,1.抄写单词和短语：bulb，lock，rule，test，tidy，touch；airconditione