Unit5Grammar課件牛津譯林版英語八年級上冊

Unit5Wildanimals

GrammarRevisionPandasmaynothaveaplacetoliveorfoodtoeat.Ifwedonothing,soontheremaybenoneleft.Usingmaytotalkaboutpossibility用may來談論可能性1.may表示推測可能性，意為“可能，或許”，可用于肯定句和否定句中。Itmayraintomorrow.Shemaybeathome.肯定句：may＋動詞原形Itmaynotraintomorrow.Shemaynotbeathome.否定句：maynot＋動詞原形maynotdo...“可能不......”---WhereisJohn?---Hemaybesleepingathomenow.maybedoing“也許正在做...”,用于現(xiàn)在進行時的句子中。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).maybeplayingmaybesleeping/kl??zd/adj.關閉的openv.打開 closev.關閉openadj.打開的；開放的，營業(yè)的. beopencloseadj.親密的 closefriendsclosedadj.關閉的 ...beclosed---Haveyouheardthatsomebadthingswouldhappenin2050?---Don’tworry!Thenews______betrue.A.mustn’t B.maynotC.needn’t D.may---一些糟糕的事情會在2050年發(fā)生，你聽說了嗎？---不要擔心！這個消息可能不是真的。maynot表示“可能不”；A.mustn’t表示“禁止，不允許”，翻譯不通順。C.needn’t=neednot.這是need作情態(tài)動詞的否定形式，“不必”，翻譯不通順。D.may“可能”，和“不用擔心”矛盾。TheBrowns______inthecinema.Isawtheminthesupermarkettenminutesago.A.maybenot B.needn’tbeC.mustn’tbe D.can’tbe布朗一家人不可能在電影院。我十分鐘前在超市看見他們了。can作情態(tài)動詞，也可以表示推測，“可能”，常用于否定句和疑問句中，此時，can’t(cannot)表示“不可能”。A.順序錯誤，應改為maynotbe;B.表示“不必”，翻譯不通順。C.mustn’t表示“禁止，不允許”，翻譯不通順推測可能性大?。簃ust>can>may>might（大家動筆把這個記下來）2.may表示請求、許可，“可以”。此時，may比can正式。①Youmaygohomenow.②MayIuseyourcomputer?以May引導的一般疑問句，May后多用第一人稱(I/We)和問答方式：---MayIsmokehere?---Yes,please./Yes,youmay./Yes,youcan.(肯定回答)（否定回答)---No,youcan’t.(一般性問題)---No,youmustn’t.(涉及法律和正式規(guī)定)根據(jù)語境，判定用哪個否定回答。3、may表示希望、祈求、祝愿。

結構為：May＋主語＋謂語＋其他。e.g.Mayyouhaveagoodtime.祝你過得愉快。Mayyousucceed!祝你成功！Mayyoubehappy!祝你開心！1、當主語是第一人稱時，may引導的一般疑問句的否定回答用can’t和mustn’t,表示“不可以”和“禁止”。2、“MayI...?”較正式，語氣上更委婉?？谡Z中可以用“CanI...?”表示請求許可?！癈ouldI...?”也可表示請求許可，語氣比“CanI...?”更委婉。但是，用“CouldI...”提問時，回答要用can.e.g.---CouldIuseyourpen?---Yes,youcan./No,youcan’t.3、may一般不用于反意疑問句。

may表示“可能”時，相當于副詞perhaps,maybe1.Hemaybeathomenow.=Perhapsheisathomenow.=Maybeheisathomenow.2.Shemaynotbehappynow.=Perhapssheisnothappynow.=Maybesheisnothappynow.注意：副詞perhaps,maybe無法做謂語，但是may(not)＋動原

做謂語。1.Don'tdrivetoofast,oryou_____(可能)haveanaccident.2.Youhadbetteraskthepoliceman.He______(可能)knowtheplace.3.Hemaybeastudent.（同義句轉換）=_______heisastudent.4.---MayIparkmycarhere?----No,you______.(can't/mustn't).Youshouldparkitinthecarpark.5.---DidyouhearJuliasingingintheroomlastnight?----No,it______beJulia.Shehasgoneto(已經(jīng)去了)Paris.A.maynotB.can'tC.needn'tD.couldn't中考鏈接maymayMaybemustn'tBBatscan’tsee,buttheycandecidetoflytherightwaywiththehelpoftheirmouthandears.bat/b?t/verbs+to-infinitives(todo不定式)decidetodosth.決定做某事

當句子中已經(jīng)有謂語動詞,而我們又要表達不止一個動作概念時,其余的動詞可以使用非謂語形式表達。動詞不定式就是動詞的一種非謂語形式,其基本形式是“to+動詞原形”。如：（不用抄，了解即可）Hewantstoplayfootballafterclass.他想課后踢足球。Mymotherforgottoturnoffthelightsyesterday.我媽媽昨天忘記關燈了。注意:（記筆記）動詞不定式在句子中不作謂語,因此沒有人稱、單復數(shù)和時態(tài)的變化。Weoftenuseto-infinitivesaftertheseverbs.

agreechoosedecidehopelearnplanpreparewantlikestartbeginfailwishtryrememberforgetYoumustpromisenottobelateagain.你必須保證不再遲到了。Hedecidednottogohome.他決定不回家了。注意：（記筆記）動詞不定式的否定形式是“notto+動詞原形”。Idon’tknowwheretofindmykeys.CanyoutellmehowtoworkoutthisMathsproblem?疑問詞＋todo，是名詞短語，可以放在句中，做動詞的賓語。remembertodosth.記得去做某事rememberdoingsth.記得做過某事區(qū)分forgettodosth.忘記去做某事

forgetdoingsth.忘記做過某事e.g.Tom,記得課后和我們一起打籃球。Tom,remembertoplaybasketballwithusafterclass.我記得上個月寫了一封信給你。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.讓我們停下來休息一下。

Let’sstoptohavearest.

不要說話。老師來了。

Stoptalking.Theteacheriscoming.區(qū)分1.enjoy enjoydoingsth.

Kitty

enjoysdancing.let letsb.dosth.

Theteacher

letshimread

loudly.3.practise practisedoingsth.

Youshould

practisespeaking

often.Wedon’tuse‘to’aftertheseverbs.4.makemakesb.dosth.

Thejoke

makesmelaughandlaugh.

5.help

helpsb.do/todosth.

Sheoften

helpsme(to)carry

water.6.finishfinishdoingsth.

Youmust

finishdoing

yourhomeworkontime.Dad:Doyouknowanythingspecialaboutwildanimals?Amy:Yes,Dad.Forexample,dolphinsareclever.Theycan_________________

(learn,workout)easy

Mathsproblems.Dad:Whatdoyouknowaboutbats?Amy:Batscan’tsee,buttheynever____________(fail,fly)therightwaywiththehelpoftheirmouthandears.Dad:Didyouknowthatbeesnevergetlost?Amy:Yes.Beesalways_________________________(remember,comeback)thesamewayastheygo.Dad:Whatdoyouknowaboutsquirrels?Amy:Theyalways______________(begin,save)somefood

beforewintercomes.Dad:Yes,butsometimestheyforgetwheretofindthefood.learntoworkoutfailtoflyremembertocomebackbegintosaveExercises1.Youmust_____(listen)totheteachercarefullyinclass.2.Maryagreed_____(go)shoppingwithLucy.3.Look!Theboys____________(play)football.listentogoareplayingExercises4.Maydecid