2024-2025學(xué)年高一英語必修第二冊（譯林版）UNIT 4 Grammar and usage教學(xué)課件

Unit1Reading1Theevolutionofvideoandsounddevices

高中英語必修（第二冊）Unit4ExploringliteratureGrammarandusageModalverbsFreetalkHaveareviewofthethreequalitiesofgoodliteraryworks.Then,thinkofthefollowingquestions:WhatshallIread?Whatareyoursuggestions?ReadthepassageonPage48andgetsomeideasabouttheanswerstothequestion.MakingsuggestionsMakingsuggestionsExpressingnecessityTostartwith,askyourfriends,parentsandteacherstorecommendwhatbooksyououghttoread.Youcouldalsoreadbookreviewsinnewspapers,inmagazinesoronline.However,youmust

alsodecideforyourselfwhatkindofbookstoread.Exploringtherules1.Readthepassageagainandfindtheothersentencesthatusemodalverbs,identifyingtheirfunctionsrespectively.AndthenfillinthetableonPage48.SuggestionWhatshallIread?…youcangetideasfromdifferentsources…Youcouldalsoreadbookreviewsinnewspapers,inmagazinesoronline.AbilityTeachersinparticularcanprovidesuggestionsforinterestingreadingmaterialsthatcanbefoundinthelibraryorbookshopeasily.Abookreviewcanoftentellyouwhetherabookisworthreadingornot.Necessity…whatbooksyououghttoread.However,youmustalsodecideforyourselfwhatkindofbookstoread.Youdonothavetoreadabookjustbecauseeveryonerecommendsit.PossibilityYoumighthaveaskedyourselfthisquestionmorethanonce.Theseideasshouldpointyouintherightdirection.…youmayfindyourselfbetterabletoseekoutbookstoyourtaste…ExploringtherulesModalverbscanexpressabilityornecessity.Theycanalsomakesuggestionsordescribetheprobabilityofanevent.Thesamemodalverbcanhavedifferentfunctions.Modalverbscanbefollowedby__________.*Youcanchoosemorethanoneanswerfortheblank.a.do(thebaseform)

d.bedone(thepassivevoice)b.doing(theverb-ingform)

e.bedoing(thecontinuousform)c.did(thepastform)

f.havedone(theperfectform)Exploringtherulesa,d,e,f2.Trytoidentifythedifferencesbetweenvariousmodalverbsforthesamefunction.ExploringtherulesSuggestionWhatshallIread?…youcangetideasfromdifferentsources…Youcouldalsoreadbookreviewsinnewspapers,inmagazinesoronline.ShallIopenthedoor?Shallwemeetat6o’clock?WhatshallIdoforthemeeting?ExploringtherulesYouuse

shall

with“I”and“we”inquestionsinordertomakeoffersorsuggestions,ortoaskforadvice.

“Could”isnormallyusedtogive

mildadvice

ortosuggesta

solution

tosomeproblem.ExploringtherulesAbilityTeachersinparticularcanprovidesuggestionsforinterestingreadingmaterialsthatcanbefoundinthelibraryorbookshopeasily.Abookreviewcanoftentellyouwhetherabookisworthreadingornot.Bythetimeshewaseight,she__________readGreekandLatin.Hefellintotheriver,buthe__________swimtothebank.

Modalverbsforability:can,could,beabletocouldwasabletoExploringtherules“Could”canbeusedasthepasttenseof“can”tosaywhatsomeonewasabletodoorwasallowedtodointhepast.Whentalkingaboutwhathappenedinaparticularsituation,weuse“was/wereableto”or“managedto”insteadof“could”.ExploringtherulesNecessity…whatbooksyououghttoread.However,youmustalsodecideforyourselfwhatkindofbookstoread.Youdonothavetoreadabookjustbecauseeveryonerecommendsit.You

_______________wear

ascarf.It’sverycoldoutside.You__________obeytherules,otherwiseIwouldpunishyou.It’sfiveo’clock.I_____________leavenow.Modalverbsfornecessity:should,oughtto,must,havetooughtto(should)musthavetoExploringtherulesWeuse“must”whensayingthatitisveryimportantthatsomeonedoessomething,becausesomeoneinauthorityorarulesaysthis,orbecauseofthesituation.Weuse“haveto”whenweneedtodosomethingbecauseitisnecessaryorimportant.ExploringtherulesPossibilityYoumighthaveaskedyourselfthisquestionmorethanonce.Theseideasshouldpointyouintherightdirection.…youmayfindyourselfbetterabletoseekoutbookstoyourtaste…—Where’sRose?—I’mnotsure.She

________________

be

athome.

Youhaven’teatenallday.You

_________

be

hungry.Idon’tbelieveit.It__________(not)betrue.Modalverbsforprobability:may,might,could,must,can,shouldmay/might/couldmustcan’tExploringtherulesWeuse“may,mightandcould”tosaythatsomethingis

possible,butnotcertain.Weuse

“must”

toshow

wearesure

somethingistrue.Weuse

“can’t

or

cannot”

tosaythatsomethingis

impossible.ExploringtherulesMydrycleaningshouldbereadytomorrow.It’s5o’clock.Theyshouldhavearrived.Weuse“should”tosuggest

somethingistrueand

wehavereasons

foroursuggestion.ExploringtherulesItcanbeverycoldinAprilinNanjing.Wilddogscanbedangerous.Weuse“can”tomake

generalstatements

aboutwhatispossible.Workingroupsandtrytogiveoneexampleforeachcase.(1)Hemustbeastudent,forheiswearingaschooluniform.(2)—Canhebereadingnow?—Yes,hemustbereadingnow.Thelightisstillon.(3)Ididn’thearthephone.Imusthavebeenasleep.Exploringtherules4.PleasegothroughGrammarnotesonPages99–101.Raiseyourquestionsthatyouhaveaboutthispart.ExploringtherulesApplyingtherules1.TurntoPage49andfinishB1onthispage.2.Checktheanswers.Tellthereasonsforyourchoices.QuestionChoiceFunctionofthemodalverbsinthechoiceFunctionofthemodalverbsintheothersentences.1aPermissionAbility2cPermissionPossibility3bPossibilityNecessity4cNecessityPossibilityQuestionChoiceFunctionofthemodalverbs1can’tAbility2mustPossibility3couldAbility4mustNecessity5canAbility6shouldNecessity7oughttoNecessityWhatdidthewriterthinkofreadingDickens’sAChristmasCarolatfirst?Howdiditturnout?Whatcanwelearnfromthebook,accordingtotheauthor?Applyingtherules3.Ingroups,makerulesforyourschoollibraryusingmodal

verbs.(1)Whatisarule?Whatmodalverbscanbeusedtodescribe

rules?(2)Fromwhataspectswouldyouliketogiverulesforyourschoollibrary?ApplyingtherulesAruleisastatementexplainingwhatsomeonecanorcannotdoinaparticularsystem,gameorsituation.Modalverbsthatareusedtodescribepermissionornecessity:must,can,mustn’t,cannot.ApplyingtherulesRulesfortheschoollibraryApplyingtherulesfooddrinksmobilephonetalkingschoolIDlibrarypropertiesborrowingbooksprotectingbooks1.Youmuststudyquietlyinthereadingroom.2.Youmustnoteatordrinkinthelibrary.3.Youcanusethecomputerstofindbooksinourlibrary.4.Youcanborrowtwobook