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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.Ifwewanttotalkabouttheabilitysomeonewillhaveinth
2、efuture,wewillusetheformofthemodalverbwill/shallbeableto.4.Modalverbsshould/oughtto(sometimeshaveto)arealwaysusedtogiveadviceortellsomeonethatheorsheisunderobligationtodosomething.5.Ifwewanttoexpressthatitisnecessaryforustodosomething,modalverbmustisoftenused.6.Mo
3、delverbsmay/might,can/couldareoftenusedtoaskforpermission.Examples:1.Now,manyofuscanspeakEnglishquitewell,butafewyearsago,wecouldn’t.2.Shallwebeabletobeadmittedthefamousuniversityforfurtherstudyinayear?3.Youshould/oughttolearnenoughknowledgetoservethepeople.4.Ever
4、yonepresentatthemeetingmustlookintothemattercarefulandgiveasmuchadviceaspossibleonhowtosolvetheproblem.5.Asastudent,youhavetoobeytherulesoftheschool.6.I’msorryIamlateforclass.May/CanIcomein?Step2:Practice1.Nowlookattheblackboard,I’dlikeyoutoexplainthemeaningsofthe
5、differentmodalverbsusedinthissentence:Imight/may/could/should/oughtto/will/mustwatchtheTVprogrammetonight.Whenmightisused,itshowsthatthespeakerisuncertainwhetherheorshewilldosomething.Whenmayisused,itshowsthatthespeakerissbitmorecertainthanwhenmightisused.Couldism
6、orecertainthanmay,butlesscertainthanshouldandoughtto.Shouldandoughttoaremorecertain.Whenweusewill,wemeanwearequitecertainthatwewilldosomething.Ifweusemust,wearealmostcertaintodosomething.2.Ifyouwanttohavealookatyourfriend’sbook,whatdoyousay?(CanIhavealookatyourboo
7、k?)Whatdoesyourfriendsaytoyou?(‘Ofcourse,youcan.’Or‘sorry/No,youcan’t)Socanisalsousedtoaskforpermission,especiallyininformalorspokenEnglish.3.NowreadPart1onpage28tofindouthowmodalverbsareusedtotalkaboutability,obligation,certaintyandpermission.Payattentiontothethr
8、eearrowsthatillustratethedegreesofobligation,certaintyandpermissionwhenmodalverbsareused.4.Readpart2andusemodalverbstomakerequests,suggestionsoroffers,a
