八年级英语上册-Unit-6-Go-With-Transportation-review课件-(新版.ppt

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,*,Learning aims:,1.Know about the history of some transporters.,2.Learn about the development of the future transportation.,Learning important points:,1.Giving Advice/Order.,2.Possibility and Impossibility.,Learning difficult points:,Modal Verbs,I.词汇,1.掌握词汇：,anywhere,on foot,of course,type,ship,rapid,invent,wheel,engineer,railway,passenger,get on/off,speed,even,certainly,invention,present,round,wing,during,factory,dangerous,humorous,as long as,drive,countryside,ride,get in,smooth,second,space,sound,dirty,electric,2.认知词汇：,transportation,rail,inventor,steam,engine,locomotive,explode,distance,iron,per,magnetic,jet,jet engine,presentation,North America,highway,afar,park,fuel,imagination,hoverboard,skateboard,float,transporter,spaceship,pedal,electricity,V.Modal Verbs,can,could,would,should,may,must,might,I can go almost anywhere on foot.,At first,only rich people could buy cars.,I would like to see hoverboards.,I think someone should invent a transporter,too.,May we leave our car here?,I must go and get new things,or I might,have a fit!,Language,Points,情态动词,一、表示推测,(,may/might,can/could,must,should,ought to,),1.may(过去式 might)“可能”,There,may,be little water left in the bottle.,He thought it,might,be wise to try his luck there.,She,may,not be waiting for you now.,might,might,注意:,可以用might代替may,以表示说话语气更加不肯定;,may 表示推测时,不能用于疑问句中.如果在疑问句中出现,may,则表示请求许可,意为“可以”.,May I use your cell phone?,注意:,1)可以用could代替can,以表示语气婉转;,could,2)表示推断,can不能用于肯定陈述句,但could可以用于肯定陈述句,相当于may/might;,This story,could,be true,but I hardly think it is.,may/might,2.can(过去式could)“可能会”,That,can,t be true.,What on earth,can,this mean?,couldnt,3)can 可以用于肯定陈述句,表示一时的情况,意为“有时候会”;,Our house is on the top of the hill,and in winter the winds can be pretty cold.,4)may not/might not意为“可能不”,而can not/could not意为“不可能”、“肯定不”,其语气要比may not/might not强得多.,3.must “肯定”、“准是”,You must be joking,arent you?,注意,:,1)must表示推测不用于否定句,因为must not/must never,只能表示禁止,意为“不准”、“不可以”;,-,May,I watch TV after supper?,-No,you,mustnt,.(,may not,/,cant,也可),Judging by the smell,the food must be good,isnt it?,2)must表示推测不用于疑问句,因为must在疑问句中只能表示“必须”或表示反感“(干吗)偏要”“硬要”;,Must I finish it by the end of this week?,Why must you ask me so many questions when Im busy cooking?,3)must表示推测不用于将来.应该用别的句型表示推测“肯定会”、“准会”.,Youre sure to succeed./It is certain that you will succeed./Im sure that youll succeed.,4.should,ought to “照说应当”,“想比一定”,“按理应该”,Fred,should,/,ought to,be up now.,My new poems,should,/,ought to,be out in a month at most.,二.表示必要性,、职责、劝告、建议等,(need,must,should,ought to),1.need“必需”“需要”;must“必须”,-,Must,I be here before 9 oclock?,-No,you,neednt,.(不能说:No,you mustnt.),-,Need,I be here before 9 oclock?,-Yes,you,must,.(不能说:Yes,you need.),注意,:,1)need作情态动词,不能用于肯定陈述句,在陈述句中,应该用need的实义动词表达.,You need to be here before 9 oclock.,(不能说:You,need,be here before 9 oclock.),2)回答Must/Need开头的问句,不能说:Yes,you need./No,you mustnt.,3)表示“必须”时,must 是说话者的主观看法,是积极态度.have to 则是客观需要,是消极态度。,2.表示建议、劝告.,shall,should,ought to,must,You,ought to,/,should,follow your teachers advice.,You,must,take plenty of water with you if you want to walk alone into the desert.,Shall,we have a break?,Lets have a break,shall,we?,Lets not bother him,shall,we?,三.请求对方做某事,疑问句中用情态动词can/could,will/would表示请求比用祈使,句表示请求婉转、客气.,Can,/,Could,you wait a few more days?,Will,/,Would,you please wait a few more days?,四.表示允许或征询对方许可,may/might,can/could,(“不准许”may not/cant/mustnt),You,may,/,can,stay here for the night.,-May,/,Might,/,Can,/,Could,I have a talk with you?,-Yes,you,may,/,can,.,(-No,you,may not,/,cant,/,mustnt,.),(但不说:Yes,you might/could.),can(过去式could)/比较 be able to泛指能力(具有知识、技巧、本领而能读书、游泳、说英语、踢足球等),五.表示能力,1.,I,could,/,was able to,swim well when I was only ten.,2.如果指过去具体某时或某个场合能(设法)做到某事(succeeded in doing sth./managed to do sth.),在否定句中两者都可用,在肯定陈述句和疑问句中,只能用be able to.,We had a holiday yesterday,but,couldnt,/,werent able to,go to the seaside.,Exercises,1.There were _ of footsteps outside the house.,2.The cat came into the house _ the window.,3.I hope everything _ well.,4.Mr.Guo is out of _ now.,5.It _ two hours to finish my home-work yesterday.,go,sound,take,through,danger,I.选词填空。,took,sounds,through,goes,danger,1.This book _ be Lilys.Look!Her name is on the book cover.,2.Hes a famous swimmer.He said he _ swim when he was three.,3.He _ do it,so can I.,4.You should take your raincoat with you.It _ rain tonight.,5._ I ask you a question?,Yes,you _.,6.When the traffic lights are red,you _ stop your car.,II.用适当的情态动词填空。,must,must,could,can,may,May,can,III.补全对话。,从方框中选择合适的句子补全对话,(有两项多余)。,A.My bike is broken,too.,B.Walking is good for our health,C.Whats wrong with your bike?,D.Dont you usually come to school by bike?,E.There is something wrong with my bike.,F.Thats right.,G.I like walking.,A:Morning,Mr.Wang!Youre walking,today.(1)_,B:Yes,I do.But sometimes I walk.,(2)_,A:(3)_,so I like walking,too.Look at the sun.Its a fine day for walking today.,B:(4)_ And the air today is nice and clean.Do you often come to school by bike?,A:Yes,but not today.,B:Why not?,A:(5)_,E,D,G,B,F,