Unit1Unit2语法情态动词课件高中英语外研版

UsingLanguageModalverbsPlayagameHowmanymodalverbsdoyouknow?Let'sseewhowillgetthemost.师傅的三字经：能可以（can/could）或许美（may/might）必须猛（must）该温柔（shall/should）将会赢（will/would）敢需要（dare/need半情态）本身有一定的词义，否定是情态动词后加not（must/haveto除外）与动词原形及其被动语态一起使用，给谓语动词增添情态色彩表示说话人对有关行为或事物的态度和看法表达可能、应该或必要语法填空题有可能会用到作文中使用情态动词，降低错误率，后面加动词原形情态动词定义Definition1.can/could

①表示具有某种能力（体力／知识／技能）意为"会，能”SunWukonglaughed,“Icanbeatmonsters—Icouldhandleworseonesbefore.”②表示可能性，意为"可能会”Watercanbeturnedintoiceifitiscoldenough.

③表示请求／许可，常用于一般疑问句意为"可以"

Can/CouldIaskyouaquestion?（此时couldt比can语气要更加委婉／客气这时could不是can的过去式）④表示推测，常用于否定句cannot=can't意为"不可能"Thatcan'tbeMike.Hewasintheclass.

canbeableto含义强调自身已备能力强调通过努力获得的能力人称和数的变化动词原形有三单形式变化时态can/could

is/areabletowas/wereabletoOneday,people___________（can/beableto）traveltothemoon.willbeableto2.may/might

①表示请求／许可，意为"可以"但比can/could正式MayIuseyourcomputer?

-Yes,ofcouse./Sure.②表示推测，用于谈论可能性，常用于肯定句

意为"可能，或许"Yourmommaybeverybusynow.Shesaidthatshemightnotbeatworktoday.(might表示可能性比较小的推测）③表示祝愿，多用于祈使句Mayyouhaveagoodtime.3.must/haveto①表示说话人的主观意志，意为"必须，"mustn't意为"禁止"WemuststudyEnglishhard.Studentsmustn'tsmokintheschool.Ihavelostmypen,soI________(must/have)tobuyanewone.musthaveto含义强调主观看法"必须"强调客观需求"不得不"人称和数的变化动词原形无变化有三单形式变化时态无时态变化have/has/hadto否定mustn't禁止／不许don't/doesn't/didhaveto不必haveto②表示对事物的推测，意为"一定",只用于肯定句

Thelightison.Shemustbeathome.4.shall/shouldshall①

表示征求对方意见（多用一，三人称）Shallwegooutforawalk?should②表示劝告、建议和命令,意为"应该"Ishouldhelpherbecausesheisintrouble.5.will&would①表意愿，决心，will现在的意愿／would过去的意愿Iwilldoeverythingforyou.HeaskedifIwouldgotothecinemawithhim.②表征求意见／提出请求，主要用于第二人称疑问句中（此时would不表过去，而表示委婉语气）Will/Wouldyoupleasetellmethewaytothepostoffice?③表示习惯性，will表示现在／would表示过去常常做Fishwilldieoutofwater．Whenhewasachild,hewouldoftenrun.6.need/dareneed①意为“需要”常用于否定句，疑问句，其否定形式为needn't，意为“不必”There’splentyoftime.Youneedn’tdrivesofast.dare②表示“敢”,多用于否定句、疑问句Idarenotdothisthing.注：dare和need也可做实义动词，意思于情态动词相同，这时有人称和数的变化。Thedoorneedspainting/Hedoesn’tdaretobreakhispromise.7.hadbetter（not）dosth

She’dbettergetheresoon,orshe’llmissthemeeting.Theyhadbetternotbelate.8.表推测的强弱Must一定Will一定Would应该Should应该Can可能Could可能May可能Might也许Ps：1.“情态动词+be+过去分词”的用法（高考考点）1.（2024全国甲卷）Whatshould_____bedone____(do)withsuchabeautifulplace?Theywonderedoutloud.2.（2024浙江1月卷）However,thoughit’snicetogetafewcentsoffapackofsausages,itwouldhelpevenmoreiftheycouldsometimesbeoffered______(offer)insmallerpacks.1.（2023全国甲卷）Carsonprovesthatasimplelyricformthathasbeenpasseddownthroughtheagescanstill_________(employ)todaytodrawattentiontoimportanttruths.2.（2022浙江卷）Tounderstandapainting,we’retaughttolookforcolor,composition,andlight.Buthowcanapainting_____________(appreciate)bysomeonewho’sblind?3.（2020全国III卷）Theartistwassurehewould_________(choose),butwhenhepresented....beemplpyedbeappreciatedbechosenPs：2.情态动词+havedone（高考考点）“can/could/may/might/must+havedone”表示对过去事情的推测。各情态动词的表示推测的用法如下表:①musthavedone，过去肯定做过②can/couldhavedone“本来能够做某事但却未做”或表推测。③should/oughttohavedone表示“本该做某事而实际上未做”;否定式表示“本不该做但却做了”。④needn'thavedone表示“做了本来不必做的事”。用适当的情态动词填空。(1)He_____________haveforgottenit.Itoldhimjustnow.(2)Youdidn’tpasstheexam;You_______havestudiedhard.

(3)Marywenthome.She_____havefinishedherwork.can’t/couldn’tshouldmustPs：3.写作中（高考考点）写作中情态动词后一定跟动原写作中情态动词后一定跟动原写作中情态动词后一定跟动原请选择至少三个情态动词并造句Usinglanguage1Lookatthesentencesfromthereadingpassage.Thinkandworkoutthemeaningofthewordsinbold.a..Iwasabletoholdaknifeandfork-andchopsticks!bButtherearestillsomedishesthatDaddarenottryevenaftermanyyearsofmarriagetomymother.c...MumandIjusthavetofindawaytogethimintothekitchen!d...we'dbetternoteattoomuchroastfoodasitmaymakeussufferfromheatinsideourbodies,...e"Youneedn'ttryitifyoudon'twantto,"Mumsaid,...能，能够不敢必须，不得不最好不必，没有必要Usinglanguagea.beabletob.darenotc.havetod.hadbettere.needn’t1.beafraidtodosth.2.notbenecessarytodosth.3.giveadvicetodoornottodosth.4.benecessaryorgivestrongadvicetodosth.5.havetheabilitytodosomethingMatchthewordsinboldwiththemeanings.

Ifyoudarenottrya“painful”diettostayhealthy,thisnewappistheperfectsolution-andyouneedn'tpayforit!Theappworksbyquicklyshowingphotosofdifferentfood.Allyouhavetodoisselectthephotosofhealthyfood.Thenyou'llbeabletotrainyourbraintoselecthealthyfoodinrealsituations.So,ifyou'reasugaraddictandaren'tabletosaynotochocolateorcola,youhadbetterdownloaditnow!Underlinethemodalsintheintroductiontoanappandtalkabouttheirmeanings.beafraidtodosth.notbenecessarytodosth.benecessarytodosth.havetheabilitytodosth.giveadvicetodosth.don'thavetheabilitytodosth.Exercise:useCompletethetipsforgoodtablemannerswiththecorrectformofthemodalsyoulearnedtoday.WhilegoingonyourfirsttriptotheUKisexciting,newanddifferentcustoms(习俗；海关：复数)canalsobeconfusing.Tablemanners(礼仪，用复数)arenoexception.Butdon’tworry—herearesometips:•You1._____________waituntileveryoneelsehasbeenservedbeforeyoustarteating.havetoExercise:use•Sometimestherearesomanyknivesandforksthatyou2.________pickthemupincase(以防万一，加句子；incaseof+名词/动名词)yougetitwrong.Thetrick(诀窍，技巧)istostartwiththeonesontheoutside.•Whenyoufinishyourmeal,you3.____________place(盘，碟)theknifeandforktogetheronyourplatewiththehandles(把手；V.处理，口语化handlethisproblem)atthefouro’clockposition.darenothadbetterExercise:useTablemanners,however,candifferin(在...方面不同)differentsituations.Forexample,you4.__________useaknifeandforkwheneatingahamburgerorpizza.Justremember:wheninRome,doastheRomansdo,andyouwill5.___________enjoythelocalcuisine!needn’tbeabletoReadthepassageandfillinblankswithmodalverbs(can/could,may/might,must,shall/should,will/would,dare/need,hadbetter)—oneuseeach.Thefourdisciples(MonkeyKing,TangSeng,Bajie,Sandy)werefetchingBuddhistscriptures（取经）whenthickfogappeared.TheMonkeyKingsaidtoTangSeng,"Master,thisfogisstrang