牛津译林版英语8A-Unit5-grammar课件

Unit5WildanimalsImaydiewithoutthem.Theymaybecomedishesonthetableanytime.3.Ifwedonothing,soontheremaybenoneleft!may情态动词表示猜测和可能肯定句：

maydo/be...可能...may的结构：否定句：

maynotdo/be...可能不...e.g.她可能开车去市中心购物了。他们可能不是医生。She_____________________thecitycentretodosomeshopping.They______________________doctors.maydrivetomaybenot辨析！！！可能不...maynotdo/be***不可能是...can'tbe...***1.MilliewenttoShanghaiyesterday.Thegirloverthere________________her.can'tbe2.Peter

______come

with

us

tonight,

but

he

isn't

very

sure

yet.

A.

must

B.

may

C.

canD.

willB

Atthemoment,

she______________withherclassmates.

3.此刻她可能正在和同学们玩。

maybeplayingMillieisinthezoo.SheistellingSandyonthephoneaboutwhathappens.CompletewhatMilliesaysusingmaywiththewordsinbrackets.Inthezoo1.Theelephantisgoingtowardsthewater.It___________(need)abath.mayneed2.Thelittleboyiscryingwhenhesawthetigers.He________(be)afraidofthem.3.Icannotgonearthelionsandtigers.They__________(hurt)me.4.Thebabypandaisnotdrinkingitsmum’smilk.It_____________(notbe)hungry.maybemayhurtmaynotbe5.Themonkeysarejumpingaround.They_______________(beplaying)witheachother.6.Thehorseisstandingwithitseyesclosed.It______________(besleeping).maybeplayingmaybesleepingBUsingverbs+to-infinitives当我们要表示“想做某事、需要做某事或决定做某事”时，就会出现两个动词连用的情况，这时应如何表达呢？Usingverbs+to-infinitives当句子中已经有谓语动词，而我们表达不止一个动作概念时，那么，主要行为动词后面的动词采用“to+动词原形”的结构，我们把这种结构称为动词不定式（有时可以不带to）。其肯定形式是“todo”，其否定形式是“nottodo”。在句子中不能单独作谓语，动词不定式没有人称和数和时态的变化，。什么是动词不定式(‘to-infinitives’)？wanttodosth.,needtodosth.

decidetodosth.agreetodosth.同意做...begintodosth.开始做...decidetodosth．决定做...failtodosth.做某事失败forgettodosth.忘记做...hopetodosth．希望做...1.在英语中某些及物动词后接动词不定式作宾语,常用的此类动词有：learntodosth．学着做...plantodosth．计划做...preparetodosth.准备做...remembertodo.记得做...trytodosth．努力做...wanttodo.想要做...Ihopetowatchthesunset．我想看日落。Iwanttotakesomephotosofthesunrise.我想拍几张日出的照片。今年暑假他打算去参观长城？HeisplanningtovisittheGreatWallthissummerholiday?

moreverbs+todo（作宾语）:needpromiseseemstart/begin+to

do

wouldlikecan’twaittryone’sbestasksb.todotellsb.todoinvitesb.todowantsb.todowouldlikesb.todoteachsb.todoadvisesb.todo

needsb.todo2.todo做宾语补足语hearsb.doseesb.do

watchsb.do

makesb.doletsb.dohelpsb.do但有的动词后跟不带to的不定式作宾补，如:remembertodosth.记得去做某事

rememberdoingsth.记得做过某事区别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.区别Wedon’tuse‘to’afterthesev