小升初情态动词

小升初英语专项练习：情态动词一、情态动词的定义：情态动词有词义，但它不能单独作谓语，它必须和其他动词一起构成谓语。情态动词没有人称和数的变化；它的后面必须跟动词原形。二、情态动词的种类：情态动词有can(could),may,must,haveto,shall(should),will(would),need等，这些是小学阶段需掌握的情态动词。三、情态动词的用法：一、can,(could过去式）1)表示能力（体力、知识、技能）。Canyouliftthisheavybox?（体力）Marycanspeakthreelanguages.（知识）Canyouskate?（技能）2)表示请求和允许。CanIgonow?Could\Canyouhelpme?----Yes,ofcourse.\Certainly.\Sure.Could\CanyoutellmethewaytotheZoo?3)表示推测（惊讶、怀疑、不相信的态度），用于疑问句、否定句和感叹句中。Canthisbetrue?Thiscan’tbedonebyhim.Howcanthisbetrue?二、may1)表示请求和允许。否定回答时可用can’t或mustn’t，表示“不可以，禁止”。----MayIsmokeinthisroom?----No,youmustn’t.----MayItakethisbookoutoftheroom?----Yes,youcan.(No,youcan’t/mustn’t)用MayI...？征徇对方许可时比较正式和客气，而用CanI...？在口语中更常见。2）表示推测、可能性（不用于疑问句）。1．Hemaybeverybusynow.2．Yourmothermaynotknowthetruth.3）用于祈使句，表示祝愿。Mayyousucceed!三、must,haveto1)must表示必须、必要,带有命令强制口气；而haveto表示不得不，很勉强，强调客观需要。Youmustcomeintime.Wemusthelpeachother.Mysisterisill;mymotherhastolookafterher.IhadtoworkwhenIwasyourage.注意：must的否定形式mustn’t表示禁止，意思是“不能，不许”。在回答由must引起的疑问句时，如果是否定的，不能用mustn’t（禁止，不准），而用needn’t,don’thaveto（不必要）。----Mustwehandinourexercisebookstoday?----Yes,youmust.----No,youdon’thaveto/youneedn’t.2)must表示推测、可能性（只用于肯定的陈述句），意思为“一定是,必然……”。1．You’reTom’sgoodfriend,soyoumustknowwhathelikesbest.2．Yourmothermustbewaitingforyounow.四、shall,1)shall用于第一人称，征求对方的意见。Whatshallwedothisevening?2)shall用于第二、三人称，表示说话人给对方的命令、警告、允诺或威胁。1.Youshallfailifyoudon’tworkhard.(警告)2.HeshallhavethebookwhenIfinishit.(允诺)3.Heshallbepunished.(威胁)五、should和shouldn’t表示应该劝告、建议。Ishouldhelpherbecausesheisintrouble.Youshouldgotoclassrightaway.Sheshouldn’tplaycomputergamestoomuch.六、will（过去式would）1)做助动词，表示一般将来时，将要。Hewillbehomeatsix.Bobwillleaveschoolnextmonth.2)作为情态动词时表示“愿意”“意愿”“会”。Iwillhelpyou.Iwillneverdothatagain.Will/Wouldyoupassmetheball,please?(一)根据所学情态动词，填写适当形式。1)________youliketogofishingwithme?2)________Igohomenow?No,you_________stayhere.3)You________takemoreexercise.4)Theclock________tellusthetime.5)________youtellmehowtogettotheQingyunPark?6)Mymotherisill.I_________stayathomeandlookafterher.7)________youlikesometea?8)MustIborrowthebookwithmyIDcard?No,you________.9)________Iuseyourcar?Yes,you________.10)________weplayfootballthisafternoon?(二)按要求改写句子。1.Icanswimfast.I________________fast.(否定句)2.Youmustreturnthebooksnow.（一般疑问句）-_____Ithebooksnow?-No,you________.3.Theycouldtakethebooksoutoftheroom.（否定句）They________________thebooksoutoftheroom.4.Hecanplaybasketballwell.（一般疑问句）_______he______basketballwell?5.Youshouldgetupearly.(否定句)You_______getuplate.6.CouldIborrowyourpen?(肯定否定回答)(三)对划线部分提问。1.Wemustn'tpicktheflowersinthepark.2.Weshouldplantmoretrees.3.Iwouldyoulikesomecakestoeat?4.Shecouldswimfiveyearsago.5.Weshouldprotectanimalsbecausetheyareourgoodfriends.6.Tomcouldgotothecinema(电影院)withhissister.(四)、圈出正确答案。1）Lucyshouldherhomeworknow.A.finishesB.finishingC.finishedD.finish2）Mymotherwouldbacksoon.A.cameB.comesC.comeD.willcome3）Couldyoumeahand.A.givingB.givesC.givenD.give4）ShouldInow.A.startedB.startingC.startD.starts5）Itakethisone?A.CouldB.WillC.AreD.Do6）-CanyouspeakEnglish?-No,I.A.mustn'tB.can'tC.couldn'tD.maynot7）Yougoandseeadoctorbecauseyouhadafever(发烧).A.couldB.mightC.shouldD.would8）Jimcometonight,butheisn'tverysureyet.A.shouldB.mightC.wouldD.should9）Thechildrenplayfootballontheroad.A.couldn'tB.couldC.mustD.mustn't10）-CanItakethisbookout.-No,you.A.mustnotB.couldnotC.willnotD.aren't11）Iliketogowithyou.A.couldB.wouldC.shouldD.will12）Sheisbleeding(流血).Shegotohospitalquickly.A.couldB.wouldC.shouldD.will13）YouwatchTVafterfinishingyourhomework.A.wouldB.canC.mustD.should14）Itislate.Igohomenow.A.couldB.wouldC.shouldD.will15）-WhatIdoatthemeeting?A.hastoB.wouldlikeC.shouldD.notshould16）youtellmewheretheWenHuaMarketis?A.couldB.mustC.shouldD.have1John__cometoseeustonight,butheisn'tverysureyet.A.mayB.needC.can’tD.must2Johnisn’tintheclassroom.HeplaysoccerontheplaygroundwithBob.A.canB.mustC.shouldD.can’t3That_______notbeherhusband.Sheisstillsingle.A.mayB.canC.couldD.might4You___goandseeadoctoratoncebecauseyougotafever.A.canB.mustC.dareD.would5-CanyouspeakJapanese?-No,I____.A.mustn'tB.can'tC.needn'tD.maynot6-He___beintheclassroom,Ithink.-No,he___beintheclassroom.Isawhimgohomeaminuteago.can;maynotB.must;maynotC.may;can'tD.may;mustn't7-IsLenaswimminginthepool?-No,sheswim.Sheisterrifiedofwater.A.maynotB.mustnotC.can'tD.needn't8Heisn'tatschool.Ithinkhe___beill.A.canB.shallC.mustD.might9-Whatdoyouthink“upset”means?-I’mnotsure.Itmean“sad”.A．mayB.mustC.canD.should10Thechildren___playfootballontheroad.can'tB.canC.mustn'tD.must