外研版八年级上Module-12-Unit.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,*,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,*,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,*,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,*,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,*,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,*,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,*,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,*,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,*,Unit 3,Language in use,Module 12,Help,Objectives,To summarise,and consolidate the use of modal verbs,must,can,could,(,for prediction,),To learn the imperative for suggestions and instructions,I dont know when theyll be here.They could arrive at any time.,我不知道他们多会来，他们可能随时会来。,This new drug could be an important step in the fight against cancer.,这种新药可能是攻克癌症过程中迈出的重要一步。,The phone is ringing.It could be Nick.,Read the sentences and conversations and pay attention to the circled parts.,What do they mean?,Who sent the present?Can it be your brother?,It must be your brother.I saw him in your room just now.,It cant be my brother.He is still in France.,1.That,could,be harmful!,2.Betty,you,must,know!,3.But he,could,have trouble hearing you or speaking to you.,4.You,could,drop him and hurt him even more.,Observe the following sentences carefully and pay attention to the words in red.,Observe,注意：,用于疑问句时，,can,比,could,表示的“可能性”要大,。,情态动词,must/can/could,表示推测,之前我们学过情态动词,can,和,could,表“能够，可以”等意义的用法。,另外，,can,和,could,还可,表示,对现在或将来的推测,，意为“,会,可能,”。,1.He,could,be in pain.,他,可能,很疼。,2.That,could,be harmful!,那,可能,有害！,3.,Can/Could,this be true?,这有,可能,是真的吗,?,情态动词,must,表示,有把握的猜测,，意为“,一定，准是,”，,通常只用于肯定句,。如：,Betty,you,must,know!,贝蒂，你肯定知道！,请仔细对比下列一组句子：,Who sent the present?,Can,it be your brother?,是谁送来的礼物啊？,会,是你哥哥,吗,？,（,询问可能性,）,It,must,be your brother.I saw him in your room just now.,肯定,是你哥哥，我刚才看见他在你的房间里。,（,语气强烈，表示非常肯定,）,It,cant,be my brother.He is still in France.,不可能,是我哥哥，他还在法国呢。,（,表示不可能,）,祈使句,1.,Hide,under a table.,Stay,away from,windows and heavy furniture.,Keep,Clear of fires.,2.,Leave,the buildings quickly,3.,Keep,calm,Be,brave and,be,helpful.,4.,Move,away from buildings,5.,Stay,away from,bridges and trees.,6.In the mountains,be,careful of falling rocks.,7.On a beach,run,away from,the sea and,move,quickly to higher ground.,What shall we do or not do if an earthquake happens?,Revision,1.,Dont,jump,out of high buildings.,2.,Dont,stand,near street lights or under power lines.,1.,Stay away from,windows and heavy furniture.,2.,Do not stand,near street lights or under power lines.,3.,Make sure,hes warm.,Cover,him with a coat.,4.,Find out,whats wrong with him.,5.,Do not jump out of,high buildings.,6.On a beach,run away from,the sea and,move,quickly to higher ground.,Observe,Observe the following sentences carefully and pay attention to the words in red.,1._ _ _(stay)windows and heavy furniture.,2._ _(stand)near street lights or under power lines.,3._ _(make sure)hes warm._ him with a coat.,4._ _(find)whats wrong with him.,5._ _ _ _ _(not jump)high buildings.,6.On a beach,_ _ _(run)the sea and _(move)quickly to higher ground.,Make sure,Find out,Do not jump out of,run away from,move,Cover,Stay away from,Dont stand,go,Ready?,祈使句,祈使句,表达,说话人对对方的叮嘱、劝告、希望、禁止、建议、请求或命令,等。,*,一般,以动词原形开头,，,无时态和数的变化,。,*,常见的祈使句如下：,1.,动词原形构成的祈使句,2.lets,构成的祈使句,3.,无动词祈使句,1.,动词原形或,Be,单词构成的祈使句,此类祈使句暗含的主语是,you,，但通常省略。,否定句,往往,由,do not(dont),或,never,开头,。,Have,a nice day!,祝你度过美好的一天！,Dont waste,your time!,别浪费时间了！,Never be,late again!,再也不要迟到了！,Come this way,please,.,请走这边。,Please,be quiet,boys!,男孩们，请安静！,祈使句的,句首或句末,有时加,please,，还可以,加上称呼语,，用逗号与句子主体隔开。,2.,lets,构成的祈使句,这类祈使句往往用于,提出建议,。,Lets,spend this weekend in the countryside.,这周咱们到乡下度周末吧。,Lets,take a taxi,shall we?,我们坐出租车好吗？,lets/let us,否定形式：,1.let us,前可加,dont,，也可以,let us,not,Dont,let us go with her tomorrow,=Let us,not,go with her tomorrow.,2.Lets,必须在其后加,not,Lets,not,go with her tomorrow.,3.,无动词祈使句,在,请求,、,命令,和,口号,中，常用无动词祈使句，它实际上是,省略了动词,，从而,使语句更简洁有力,。,Just a minute,please!,请稍等！,This way,please!,请这边走！,4.,在公共场合的提示语中，否定句常用：,NO+,名词或动名词,结构,NO photos!,NO smoking!,Summary,can,和,could,可以表示,对现在或将来的推测,。,“,must be+,表语,”表示对现在情况的推测，常用于肯定句，意为“,一定，准是,”。,常见的祈使句如下：,1.,动词原形构成的祈使句,2.,lets,构成的祈使句,3.,无动词祈使句,Summary,注,:word,文档,点击此处链接,Quiz,I.,用,could/can/must,或他们的适当形式填空。,Is that woman your head teacher?No,it _ be her.Our head teacher is in her office.,2.Whose schoolbag is this?,It _ be Jennys.It has her name on it.,3.Listen!Someone is knocking at the door.Who _ it be?,cant,could,must,II.,按要求完成句子。,1.You must be careful with your handwriting.(,改为祈使句,),_ _ with your handwriting.,2.Talk and read loudly in class.,(,改为否定句,),_ _ and read loudly in class.,3.The girl singing in the next room must be Lucy.(,改为否定句,),The girl singing in the next room _ _ Lucy.,Be careful,Dont talk,cant,be,III.,根据提示，用祈使句型写出句子。,1.,请举起你的右手。,2.,不要在课堂上大声说话。,3.,咱们一起上学去吧。,4.,请来两块面包。,5.,再不要这样做了。,Never do that again.,Please put up your right hand.,Dont talk loudly in class.,Lets go to school together.,Two pieces of bread,please.,IV.,根据语境选用,could,must,或,cant,填空。,1.Theres a bag on the desk.Whose _ it be?,2.I think the book _ be Mikes because his name is on it.,3.Is that your sister?,It _ be her.She went to,Shenyangthis morning.,could,cant,must,V.,根据括号内所给英文提示语将下列句子翻译成英语。,1.,晚上不要独自外出。,(dont),Dont go out alone at night.,2.,在课堂上请听老师的。,(listen to),Listen to the teacher in class,please./Please listen to the teacher in class.,3.,禁止拍照！,(no),No photos!,4.,咱们去公园吧。,(let),Lets go to the park.,VI.,根据语境选择恰当的短语填空。,1.I _ how to cook last week.,2.Lots of people are _ the train at the train station.,3.Look!A woman is _ help in the middle of the lake!,wait for because of call for,be proud of learn about,learnt about,waiting for,calling for,4.We had to stay at home _ the bad weather last weekend.,5.Janes parents _ her because she does well at school.,are proud of,because of,wait for because of call for,be proud of learn about,Homework,1.Review the grammar weve learnt today.,2.Finish the exercises in,Learning English,.,