人教版初三八单元SectionA3.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,*,Unit 8,It must belong to Carla.,Section A,Period Three,laboratory,outdoors,coat,sleepy,n.,实验室,adv.,在户外；在野外,n.,外套；上衣,adj.,困倦的；瞌睡的,Words Review,Objectives,To learn to use,must,might,could and cant,for making inferences,It must be Carlas.,It could be,Meis,hair band.,Im not sure,but it cant be a dog.,动词的种类,按词义和句中的作用，动词可以分为四类。实义动词（及物动词和不及物动词）,系动词,助动词,情态动词,That man _ be my English teacher.He has gone to Canada.(2011,湖南株洲,),A.neednt B.mustnt C.cant,【,考点点拨,】,考查情态动词辨析。,n,eednt意为“不必”；mustnt表示“明令禁止”；cant表示“不可能”。根据句意“那个男人不可能是我的英语老师。他去了加拿大。”故选C。,考点例析,情态动词,情态动词具有一定的意义，但不能单独作谓语，其后需接动词原形一起构成句子的谓语。情态动词,(,除,have to,以外,),没有人称和数的变化。另外，情态动词可用来构成否定句、疑问句并进行简略回答。初中常见的情态动词有：,can,may,must,need,have to,could,should,ought to,等。,考点一：考查表示“能力”的情态动词,1._ your Australian friend eat,with chopsticks?,Yes,but she cant use them well.,A.Should B.Need,C.Can D.Must,2.The work is too hard for us.We _,finish it on time.,A.cant B.mustnt,C.shouldnt D.neednt,情态动词考点,3.Could your father play golf when he,was young?,No,he _.But he _,play table tennis.,A.couldnt;could B.neednt;might,C.mustnt;should D.shouldnt;need,【,考点点拨,】,情态动词,can,表示“能力”时，与,be able to,同义，其否定形式为,cant,。,can,表示现在的能力，其过去式,could,表示过去的能力。,考点二：考查表示“应该”的情态动词,1._ weto finish our homework before noon?,Yes,you _.,A.Need;can B.Have;do,C.Ought;ought to D.Should;must,2.You _ study hard if you want to,be a scientist in the future.,A.may B.should,C.would D.could,【,考点点拨,】,情态动词,should,和,ought to,都可表示,“应该”，但,should,侧重说话者主观的看法，而,ought to,更侧重客观情况。,should,的否定形式为,shouldnt,，,ought to,的否定形式为,oughtnt to,或,ought not to,。,考点三：考查表示“请求；许可”的情态动词及其回答,1._ I borrow your maths book?,Sure.Here you are.,A.Need B.Will,C.May D.Must,2._ I take some photos in the,hall?,No,you _.Look at the sign,“No photos”!,A.Can;neednt B.Must;mustnt,C.Should;neednt D.May;mustnt,3.Could I use your dictionary for a while?,Yes,of course you _.,A.could B.can,C.will D.should,【,考点点拨,】,情态动词may和can都可表示“请求,；,许可”。may比can正式，could在表示“请求；许可,”,时，既可表示过去，也可表示语气的委婉,。,当“May,/Can/Could I”,表示“请求；许可”时，肯定回答常用“Yes,please.”,/,“,Certainly.”等，否定回答常用“No,you cant/,mustnt.”等,。,考点四：考查表示“推测”的情态动词,1.I saw Lily in the supermarket this,morning.,Oh,it _ her.She moved to,Australia the day before yesterday.,A.can be B.must be,C.cant be D.mustnt be,2.After a long walk,the children _,be very tired now.,A.will B.must,C.have to D.can,3.John _ go with us tomorrow,but,he isnt sure.,A.must B.can,C.need D.may,【,考点点拨,】,may,can,must都可表“推测”，三者,的可能性依次递增,。,may和must表“推测”常用于肯定句,中，can表“推测”常用于否定句和疑问句中,。,考点五：考查,need,must,和,have to,的用法,1.Jim,you _ play with the knife.,You _ hurt yourself.,A.wont;cant B.mustnt;may,C.shouldnt;must D.cant;shouldnt,2._ I have to hand in my,homework now,Mr,Zhang?,Yes,you do.,A.Do B.Can,C.May D.Must,3.Must I get up before six oclock,tomorrow morning,Dad?,No,you _.Tomorrow is,Saturday.You may get up a little later.,A.mustnt B.cant,C.neednt D.may not,4.Its too late.We _ go home,or,well be,blamed,(,责备,).,A.can B.may,C.might D.have to,【,考点点拨,】,need,作情态动词，意为“需要”，后接动词原形，常用于否定句、疑问句和条件句中,。,must,意为“必须”，强调主观看法,。,对,must,引导的一般疑问句，肯定回答常用“,must”,，否定回答常用,neednt,或,dont have to,。,mustnt,意为“一定不要；禁止,”。,have to,意为,“,不得不；必须”，强调,客观情况下需要做某事，有人称、数和时态的变化，变否定句和疑问句时需要借助助动词完成句型的变化,。,分类,特点,例词,意义,例句,情态动词,跟动词原形（有自己的词汇意思）,can(could),may(might),should,ought to,must,need,have to,etc.,不能独立做谓语。表示说话人语气、情感,或,态度，无人称和数的变化,(have to,除外,),We,cant,carry the heavy box.,He,may,come tomorrow.,We,must,study hard.,Finish the exercises 4a-4c on page 20.,Find the answer to the question.,Individual activity,注,:,另附,word,文档。,点击此处链接,1.The room is big enough.It _,hold 100 people.(2011,广西南宁,),A.can B.must be,C.need D.have to,2.Mr.Wang,can I finish my,homework tomorrow?,Sorry,you _.(2011,重庆,),A.cant B.dont,C.neednt D.wont,I.,中考链接。,3.Whose T-shirt is this?,It _ be Johns.Its much too,small for him.(2011,湖北荆州,),A.may B.must,C.cant D.shouldnt,4.The talented boy _ write lyrics,when he was at the age of ten.(2011,山西,),A.may B.could,C.must,5.Bob,shall we go and meet our new,classmate?,Sorry.Im busy now.But you _,ask David to go with you.He is free.,(2011,浙江丽水,),A.need B.may,C.would D.must,6._ I borrow your history book?,Sure.Here you are.(2011,江苏淮安,),A.Must B.May,C.Need D.Will,7.Cars,buses and bikes _ stop,when the traffic lights change to red.,(2011,上海,),A.can B.may,C.must D.need,8.The magazine _ be Lilys,for,we can find her name on the cover.,(2011,山东青岛,),A.may B.might,C.could D.must,9.Must I get up early tomorrow,morning?,No,_.(2011,山东滨州,),A.you mustnt,B.I dont think you have to,C.you cant D.you need,10.Look at the sign!,Oh,I see.We _ waste water.,(2011,广西南宁,),A.can B.must,C.mustnt D.neednt,Review passive voice we have learnt today.,Preview the new words we will use in the next lesson.,Homework,