高中英语Unit 2 Sporting events--Grammar and usage牛津版必修四VIP免费

Unit2SportingeventsGrammarandusageTeachingAims:1、Learnthatmodalverbscanbeusedtotalkaboutability,obligation,certaintyorpermission,tomakerequests,suggestions,offersandtogiveadvice.2、Enablestudentstolearnthatsomemodalverbscanbeusedwiththecontinuousformandtheperfectformtotalkaboutcurrentaffairsorpastactions.TeachingImportantPoints:1、Developthestudents’abilityofusingmodalverbs.2、Howtomakestudentsmastertheusageofmodalverbs.TeachingDifficultPoints:Developthestudents’abilityofusingmodalverbsandhowtomakestudentsmastertheusageofmodalverbs.TeachingMethods:ExplanationandexerciseTeachingAids:1.Themultimedia2.TheblackboardTeachingProcedures:Step1WarmingupSaysomesentencestowarmupstudents:Canyoudrive?Hecanjump2meters.Youmustworkhard,oryouhavetoliveahardlife.Step2LeadinLetstudentssaysentencesincludingmodalverbsasmanyaspossible.Step3Activities:(1)Introducemodalverbswiththefollowing:Now,manyofuscanspeakEnglishquitewell,butafewyearsago,wecouldn’t.Ifwetalkabouttheabilitysomeonehasnow,weuse“can”.Ifwetalkabouttheabilitysomeonehadinthepast,weusuallyuse“could”.Askstudents:Ifwetalkabouttheabilityinthefuture,whatmodalverbsdoweuse?(will,shall,beableto)(2)Askstudentstomakesentencesusingthesewordstotalkaboutability.Showtheusageofthemodalverbsonthescreen.(3)Talkaboutobligationofthemodalverbs“should,oughtto,haveto,must”,Showtheusageofthemodalverbsonthescreen.Step4Writethefollowingsentenceontheblackboard:Imight/may/could/should/oughtto/will/mustwatchtheTVprogrammetonight.Explaintheusageofthesemodalverbs,showingmoreexamplesonthescreen.Step5Explaintheusageofpermissionofthemodalverbs“Can,could,might”ShowtheexamplesonthescreenStep6.AskstudentstoreadPart1onpage28tofindouthowmodalverbsareusedtotalkaboutability,obligation,certaintyandpermission,showingmoreexamplestothestudentsandexplainingtheusagetothestudents.Step7AskstudentstoreadPart2aboutthemodalverbsofmakingrequests,suggestionsoroffers,用心爱心专心andgiveadvice.Step8Askstudentstoreadtheinstructionsfortheexerciseonpage29,completethearticleindividually,andthenchecktheanswersinclass.Askstudentstogivereasonsforeachchoicetheymake.Step9AskstudentstoreadPart4onPage28.Makesurethattheyunderstandwhythecontinuousformortheperfectformisusedintheexamplesentences.Homework:PartC1onpage100oftheworkbookReferenceforteaching情态动词语法特征:1）情态动词不能表示正在发生或已经发生的事情，只表示期待或估计某事的发生。2）情态动词除ought和have外，后面只能接不带to的不定式。3）情态动词没有人称，数的变化，即情态动词第三人称单数不加-s。4）情态动词没有非谓语形式，即没有不定式，分词等形式。1.比较can和beableto1）can/could表示能力；可能（过去时用could）,只用于现在式和过去式（could）。beableto可以用于各种时态,例如：will/shallbeableto,wouldbeableto,have/has/hadbeenableto,must/may/mightbeableto。例如：Theywillbeabletotellyouthenewssoon.他很快就能告诉你消息了。Now,manyofuscanspeakEnglishquitewell,butafewyearsago,wecouldn’t.Whenmygrandfatherwasyoung,hecouldswimacrosstheriver.注意：could有时不表示时态1）提出委婉的请求，主要用于疑问句，答语应用can（注意在回答中不可用could）。例如：---CouldIhavethetelevisionon?我能看电视吗？---Yes,youcan./No,youcan't.可以/不可以。2）在否定句、疑问句中表示推测或怀疑。例如：Hecouldn'tbeabadman.他不大可能是坏人。2）只用beableto的情况：a.位于助动词后。b.情态动词后。c.表示过去某时刻动作时。d.用于句首表示条件。e.表示成功地做了某事时，用was/wereableto，...