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1、湖南省蓝山二中高一英语必修四《unit2Grammarandusage》教案牛津版Step1:GeneralintroductionForreference:1.Ifwetalkabouttheabilitysomeonehasnow,weusethemodalverbcan.2.Ifwetalkabouttheabilitysomeonehadinthepast,weusuallyusethemodalverbcould.3.Ifwewanttotalkabouttheabilitysomeonewillhaveinthefuture,wewilluset
2、heformofthemodalverbwill/shallbeableto.4.Modalverbsshould/oughtto(sometimeshaveto)arealwaysusedtogiveadviceortellsomeonethatheorsheisunderobligationtodosomething.5.Ifwewanttoexpressthatitisnecessaryforustodosomething,modalverbmustisoftenused.6.Modelverbsmay/might,can/couldareoftenu
3、sedtoaskforpermission.Examples:1.Now,manyofuscanspeakEnglishquitewell,butafewyearsago,wecouldn’t.2.Shallwebeabletobeadmittedthefamousuniversityforfurtherstudyinayear?3.Youshould/oughttolearnenoughknowledgetoservethepeople.4.Everyonepresentatthemeetingmustlookintothemattercarefuland
4、giveasmuchadviceaspossibleonhowtosolvetheproblem.5.Asastudent,youhavetoobeytherulesoftheschool.6.I’msorryIamlateforclass.May/CanIcomein?Step2:Practice1.Nowlookattheblackboard,I’dlikeyoutoexplainthemeaningsofthedifferentmodalverbsusedinthissentence:Imight/may/could/should/oughtto/wi
5、ll/mustwatchtheTVprogrammetonight.Whenmightisused,itshowsthatthespeakerisuncertainwhetherheorshewilldosomething.Whenmayisused,itshowsthatthespeakerissbitmorecertainthanwhenmightisused.Couldismorecertainthanmay,butlesscertainthanshouldandoughtto.Shouldandoughttoaremorecertain.Whenwe
6、usewill,wemeanwearequitecertainthatwewilldosomething.Ifweusemust,wearealmostcertaintodosomething.2.Ifyouwanttohavealookatyourfriend’sbook,whatdoyousay?(CanIhavealookatyourbook?)Whatdoesyourfriendsaytoyou?(‘Ofcourse,youcan.’Or‘sorry/No,youcan’t)Socanisalsousedtoaskforpermission,espe
7、ciallyininformalorspokenEnglish.3.NowreadPart1onpage28tofindouthowmodalverbsareusedtotalkaboutability,obligation,certaintyandpermission.Payattentiontothethreearrowsthatillustratethedegreesofobligation,certaintyandpermissionwhenmodalverbsareused.4.Readpart2andusemodalverbstomakerequ
8、ests,suggestionsoroffers,a
