Unit 5 Grammar--牛津译林版八年级英语上册.pptx

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1、GrammarUnit 5 Wild animalsA Using may for possibilityWe use may to say that something is possible.Can you find sentences using may in Unit 5 as much as possible?They may become dishes on the table any time.I may die without them.As a result,pandas may not have a place to live or food to eat.If we do

2、 nothing,soon there may be none left.In the zoo1.The elephant is going towards the water.It _(need)a bath.2.The little boy is crying because he sees the tigers.He _(be)afraid of them.3.I cannot go near the lions and tigers.They _(hurt)me.4.The baby panda is not drinking its mums milk.It_(not be)hung

3、ry.5.The monkeys are jumping around.They _(be playing)with each other.6.The horse is standing with its eyes closed.It _(be sleeping).may needmay bemay hurtmay not bemay be playingmay be sleepingMillie is in the zoo.She is telling Sandy on the phone about what happens.Complete what Millie says using

4、may with the words in brackets.1.表示表示“可能性可能性”，常用于肯定句或否定句中，常用于肯定句或否定句中。他可能自己动手做，而不是花钱请别人做。He may do a DIY job,instead of paying someone else to do it.丹尼尔可能不会独自装饰房间。Daniel may not decorate the room by himself.注意：当表示注意：当表示“可能性可能性”时，时，may通常不用于一般疑问句中。通常不用于一般疑问句中。那会是真的吗？May that be true?Can that be true?m

5、ay主要用法主要用法 1注意：在否定句中常用注意：在否定句中常用cant表示表示“不可能不可能”他现在不可能在家，因为他房间里的灯是关着的。He cant be at home now,because the light is off in his room.注意区分：注意区分：他可能不知道真相。He may not know the truth.他不可能知道真相。He cant know the truth.may主要用法主要用法 12.表示表示“许可或请求许可许可或请求许可”，这种情况下，与，这种情况下，与can同义，可以互换同义，可以互换使用。使用。你可以休假两天。我可以使用这把剪刀吗？

6、肯定回答可以用Yes,you may.但语气比较生硬，所以常用Yes,please./Certainly./Of course.否定回答可以用No,you mustnt./No,you cant./Sorry,you cant./No,please dont.may主要用法主要用法 2You may/can have two days off.May/Can I use this pair of scissors?Lets review the story of Xi Wang.1.What do pandas start to do at 4 months old?They start to

7、 go outside for the first time.2.What do pandas begin to do when they are six months old?They begin to eat bamboo.3.What do pandas learn to do at 20 months old?They learn to look after themselves.zebra zibr When zebras are in danger,they will try _(run)as fast as they can.Bears do not like living to

8、gether.They hope _(live)alone.Lets learn more about animals!to runto liveWill bees get lost?They never get lost and always remember to come back the same way as they went.What do squirrels do before winter comes?They begin to save food before winter comes.beebisquirrelskwrlWe can use verbs and to-in

9、finitives together.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：agree to do sth.同意做某事 begin to do sth.开始做某事decide to do sth.决定做某事 fail to do sth.做某事失败forget to do sth.忘记做某事 hope to do sth.希望做某事learn to do sth.学着做某事 plan to do sth.计划做某事 prepare to do sth.准备做某事 remember to do sth.记得去做某事try to do sth.尝试做某事 want to do

10、 sth.想要做某事B Using verbs+to-infinitives to do 做宾语补足语:ask sb.to do 要求某人去做某事 tell sb.to do 告诉某人去做某事invite sb.to do 邀请某人去做某事want sb.to do 想要某人去做某事would like sb.to do 想要某人去做某事teach sb.to do 教某人去做某事advise sb.to do 建议某人去做某事B Using verbs+to-infinitives 动词不定式的否定形式是在不定式前直接加not，即not to do。Amy told me to wake u

11、p Suzy.Amy told me not to wake up Suzy.动词不定式是一种活跃的非谓语动词。它的形式是“to+动词原形”，但to有时要省略。动词不定式在具体运用时，带不带to，取决于谓语动词的用法。常见的不带to的不定式结构主要有以下两种。1.在had better之后注意：had better do sth.的否定形式是had better not do sth.2.在let,make,see,feel,watch,hear等感官或使役动词后make sb.do 使某人做某事see/hear/watch sb.do sth.看到/听到/观察到某人做过某事（整个过程）或经常

12、性let sb.do 让某人做某事B Using verbs+to-infinitives 动词不定式作主语时，可以转化成it作形式主语的句型。阅读是有乐趣的事。To read is fun.=It is fun to read.掌握一门语言不是一件容易的事情。To master a language is not an easy thing.=It is not an easy thing to master a language.B Using verbs+to-infinitives remember to do sth.记得记得去做去做某事某事 remember doing sth.记

13、得记得做过做过某事某事注意区注意区分分：forget to do sth.忘记忘记去做去做某事某事 forget doing sth.忘记忘记做过做过某事某事stop to do sth.停下来停下来(正在做的正在做的事事)去做去做 (另一件另一件)事事stop doing sth.停止做停止做(正在做的正在做的)事事see/hear/watch sb.do sth.看到看到/听到听到/观察到观察到 某人做过某事（某人做过某事（整个过程整个过程）或）或经常经常性性see/hear/watch sb.doing sth.看到看到/听到听到/观察到观察到 某人某人正在做正在做某事某事 Dad:Do

14、 you know anything special about wild animals?Amy:Yes,Dad.For example,dolphins are clever.They can(1)_(learn,work out)easy maths problems.Dad:What do you know about bats?Amy:Bats cant see,but they can(2)_(decide,fly)the right way with the help of their mouth and ears.Dad:Did you know that bees never

15、 get lost?Amy:Yes.Bees always(3)_(remember,come back)the same way as they went.Dad:What do you know about squirrels?Amy:They always(4)_(begin,save)some food before winter comes.Dad:Yes,but sometimes they forget where to find the food.learn to work outdecide to flyremember to come backbegin to saveMore about wild animalsThank you