上八牛课件牛八grammar

Unit5Unit5WildanimalsAUsingmayforpossibilityGrammar1.Ifwedonothing,soontheremaybenoneleft!2.Thebambooforestsareingsmallerandsmaller.Asaresult,pandasmaynothaveaplacetoliveorfoodtoeat.may表示猜测,可能性（用于肯定句中或否定句中）maynotdo...意为“可能不......”e.g.1.Thestorymayormaynotbetrue.2.Canthatbetrue?√Maythatbetrue?×3.Hecan’tknowthetruth.他不可能知道真相。Hemaynotknowthetruth.他可能不知道真相。Millieisinthezoo.SheistellingSandyonthephoneaboutwhathappens.CompletewhatMilliesaysusing

may

withthewordsinbrackets.Inthezoo1.Theelephantisgoingtowardsthewater.It__________(need)abath.mayneed2.Thelittleboyiscryingbecausehesawthetigers.He________(be)afraidofthem.3.Icannotgonearthelionsandtigers.They__________(hurt)me.4.Thebabypandaisnotdrinkingitsmum’smilk.It_____________(notbe)hungry.maybemayhurtmaynotbe5.Themonkeysarejumpingaround.They_______________(beplaying)witheachother.6.Thehorseisstandingwithitseyesclosed.It______________(besleeping).maybeplayingmaybesleepingB

Usingverbs+to-infinitives1.当句子中已经有谓语动词,而我们又要表达不止一个动作概念时,其余的动词可以使用非谓语形式表达。动词不定式就是动词的一种非谓语形式,其基本形式是“to+动词原形”。如：Hewantstoplayfootballafterclass.他想课后踢足球。Mymotherforgottoturnoffthelightsyesterday.我妈妈昨天忘记关灯了。注意:动词不定式在句子中不作谓语,因此没有人称、数和时态的变化。动词不定式在句中常作谓语动词的宾语,这一类谓语动词常见的有:agreechoosedecideforgethopelearnlikeplanpreparepromiserefuserememberseemwantwishwouldlike

注意：动词不定式的否定形式是“notto+动词原形”。如:Youmustpromisenottobelateagain.你必须保证不再迟到了。remembertodosth.记得去做某事

rememberdoingsth.记得做过某事区分forgettodosth.忘记去做某事

forgetdoingsth.忘记做过某事e.g.Tom,记得课后和我们一起打篮球。Tom,remembertoplaybasketballwithusafterclass.我记得上个月写了一封信给你。Irememberedwritingalettertoyoulastmonth.stoptodosth.停下(正在做的)事去做(另一件)事stopdoingsth.停止做(正在做的)事e.g.让我们停下来休息一下。Let’sstoptohavearest.不要说话。老师来了。Stoptalking.Theteacheriscoming.区分1.enjoy

Kitty

enjoysdancing.let

Theteacher

letshimread

loudly.3.practise

Youshould

practisespeaking

often.Wedon’tuse‘to’aftertheseverbs.4.make

Thejoke

makesmelaughandlaugh.

5.help

Sheoften

helpsme(to)carry

water.6.finish

Youmust

finishdoing

yourhomeworkontime.1.Youmust_____(listen)totheteachercarefullyinclass.2.Maryagreed_____(go)shoppingwithLucy.3.Look!Theboys____________(play)football.listentogoareplayingExercises4.Maydecided______(buy)abookforAnn’sbirthday.5.Maxtellsfunnyjokestomakeus____(feel)happy.6.Let’s____(go)onatriptomorrow.gotobuyfeel7.Thepolicemantoldtheboys__________(notplay)footballinthestreet.8.Wouldyoulikesomething________(drink)?9._________(notbe)lateforclassagain.10.Iplan________(travel)aroundtheworldinthesummer.nottoplaytodrinkDon’tbetotravel11.Danielhopes______(be)adoctorwhenhe________(grow)up.12.Iprep