Unit+4+Exploring+literature+Grammar+and+usage高中英语译林版（2019）必修第二册

ModalVerbsLearningObjectives1Understandthemeaningsofmodalverbs.2Discovergrammarrulesfromreading.3Usemodalverbstogiveadviceaboutbooks.GuesstheBookYouwillseethreecluesaboutabook.Trytoguessthetitleofthebook.Raiseyourhandifyouknowtheanswer.Clue1:Aboystudiesatamagicschool.Clue2:Hefightsagainstadarkwizard.Clue3:HisbestfriendsareHermioneandRon.TheboywholivedWhichbookisit?HarryPotterCanyoufinishthisbookinoneweek?Clue1Amonkeykingisverypowerful.Clue2Heprotectsamonkonalongjourney.Clue3TheytraveltotheWesttogetBuddhistscriptures.Whichbookisit?JourneytotheWestShouldteenagersreadthisbook?Clue1:Alittleboytravelsacrossdifferentplanets.Clue2:Hemeetsafoxandlearnsaboutloveandfriendship.Clue3:Thestoryisshortbutmeaningful.Whichbookisit?TheLittlePrinceYoumayfindthisbookinteresting.Youmustreadit.LeadtoGrammarInthediscussion,weusedthesewords:canshouldmaymustTheseare

modalverbs.Modalverbshelpusexpress:•ability•necessity•suggestion•possibilityReadingTaskReadthepassage:WhatshallIread?Task:1Findsentencesthatcontain

modalverbs.2Underlinetheminthepassage.ExploringtheRulesCompletethetablewithexamplesfromthepassage.FunctionExampleAbilityNecessityPossibilityTeachers...canprovidesuggestions......whatbooksyououghttoread.Youmighthaveaskedyourself...Theseideasshouldpointyou......youmayfindyourselfbetterableto...SuggestionWhatshall

Iread?...youcangetideasfromdifferentsources...Youcouldalsoreadbookreviews...Abookreviewcanoftentellyouwhether......youmustalsodecideforyourselfwhat...Youdonothavetoreadabookjustbecause...ReadingPracticeFillintheblanksaccordingtothepassage.Ifyouarenotsurewhattoread,you______getideasfromdifferentsources.Teachers______providesuggestions.Abookreview______tellyouwhetherabookisworthreading.cancancanWorkingouttheRulesDoesthesamemodalverbhaveonlyonefunction?Thesamemodalverbmayexpress:•ability•necessity•suggestion•possibilityModalverbscanbefollowedby___.a)dob)doingc)didd)bedonee)bedoingf)havedoneCorrectAnswersa)dod)bedonee)bedoingf)havedoneYoucanreadthisbook.Thebookmustbefinishedtoday.Shemaybereadinginthelibrary.Youmusthaveheardthisstorybefore.IdentifytheMeaning1You

canfinish

thisshortstoryinonehour.ability2Students

mustreturn

booksontime.necessity3You

shouldread

moreEnglishnovels.suggestion4You

mayfind

thisbookinteresting.possibilityFindtheMistakesCorrectthemistakes.1He

cantoread

thisnovelveryquickly.2Students

mustreturning

librarybooksontime.3Thebookshouldfinishinaweek.returnbefinishedinaweek.SentenceRewritingRewritethesentencesusingmodalverbs.Draft1Itispossiblethatyouwilllikethisbook.2Itisnecessaryforstudentstoreturnbooksontime.3Itisagoodideaforteenagerstoreadmorenovels.4Shehastheabilitytofinishthenoveltoday.You______likethisbook.Students______returnbooks.Teenagers______readmorenovels.She______finishthenoveltoday.maymustshouldcanApplyingtheRulesChoosethesentencewherethemodalverbhasa

differentmeaning.Group1aCanIkeepthebookformorethantwoweeks?bNickcanreadmoreinanafternoonthanIcaninaweek.cCanMaryfinishthislongnovelinamonth?Group2aImaybeunabletofinishthisnoveltoday.bItmaybedifficultforpeopletoagreeonwhatgoodliteratureis.cYoumaygotothelibrarytomorrowafternoon.PermissionAbilityAbilityPermissionPossibilityPossibilityApplyingtheRulesChoosethesentencewherethemodalverbhasa

differentmeaning.Group3aImustfinishwritingthebookreviewbeforeWednesday.bYoumustbetiredafterthreehours’reading.cStudentsmustdevelopthehabitofreadingclassicliterature.Group4aHenryshouldbereadingbooksinthelibrary.bIhavefiftydollars—thatshouldbeenoughforthreebooks.cReadingEnglishnovelshasgreatlyincreasedmyvocabulary—youshouldtryittoo.PossibilityPossibilityNecessitySuggestionNecessityPossibilityCompletetheparagraphwithmodalverbs.can'tmustcouldmustcanshouldoughttoMakerulesforyourschoollibrarywithmodalverbs.Youmustnotbringfoodordrinks.Youcannottakethebooksoutofthereadingroom.Studentsmustkeepquietinthelibrary.Youmustnoteatordrinkinsidethelibrary.Studentsshouldreturnbooksontime.Youcanborrowuptothreebooksatatime.SummaryModalverbsexpress:abilitynecessitysuggestionpossibilityGrammarstructure:Modal