初级英语语法第15讲--情态动词与不规则动词 王衡英语 小升初英语四轮复习法.ppt

1,易学,生动,详细,育英科技王衡英语,初级英语语法（小升初英语四轮复习法之一）,2,情态动词,情态动词是用于表示说话人的情绪,态度或语气。不能单独用,只能和其他动词原形一起使用。,3,陈述句：,疑问句：,否定句：,主,can,V原,HecandothatTheycandothat,主,can,V原,?,Canhedothat?Cantheydothat?,主,can,V原,HecannotdothatTheycannotdothat,not,4,情态动词can讲解,1.can，“能、会”，表示“能力”例：我会/能讲英语。IcanspeakEnglish.我会唱歌。她会唱歌。Icansing.Shecansing.2.can，“可以”，表示“许可”例：你现在可以回家了。Youcangohomenow.你可以用这本书。Youcanusethisbook.,5,情态动词can讲解,3.情态动词没有“单三”变化，并且后面的动词永远用原形。例：Icanclimbthetree.Hecanclimbthetree.Theycanclimbthetree.,6,情态动词can讲解,4.can的句型结构陈述句结构：主语+can+动词原形+其他否定句结构：主语+cant+动词原形+其他疑问句结构：Can+主语+动词原形+其他+?疑问句回答：Yes,主语+can.No,主语+cant注意：cannot=cant例：HecanswimintheYellowRiver.HecantswimintheYellowRiver.CanheswimintheYellowRiver?Yes,hecan.No,hecant.,7,情态动词can讲解,练习：He_(canplay)basketball.(填空)Mr.WangcanteachEnglish.(变否定句)Xiaomingcanmakeacake.(变疑问句)Cansheflyinthesky.(给出肯定和否定回答),8,情态动词may讲解,1.表示许可或征求对方的许可，有“可以”的意思。例如：Youmaygonow.你可以走了。MayIuseyourcomputer?我用一下你的电脑可以吗？,9,情态动词may讲解,2.may的句型陈述句：主语+may+动词原形+其他否定句：主语+may+not+动词原形+其他疑问句：May+主语+动词原形+其他+？回答：Yes,主语+may.No,主语+cant.注意：用may提问时，肯定回答可以用may和can，否定回答用cant,10,情态动词must讲解,1.must“必须”，语气非常强烈，含有命令语气例：你必须早起。Youmustgetupearly.你必须8点到学校。Youmustgotoschoolat8.2.mustnot=mustnt“禁止”、“不允许”，Childrenmustntplayontheroad.Itsverydangerous.孩子们不允许在路上玩耍，这样非常危险。,11,情态动词must讲解,3.must的句型结构：陈述句：主语+must+动词原形+其他否定句：主语+mustnt+动词原形+其他疑问句：Must+主语+动词原形+其他+？回答：Yes,主语+must.No,主语+neednt.例子：Hemustbeateacher.他一定是个老师。MustIgohomenow？我现在必须回家吗？Yes，youmust.是的，你必须回家。No，youneednt.不，你不必。,12,情态动词练习,1.Look,it_beMrZhang.No,it_behim.Hehasgoneabroad.A.may;mustntB.must;maynotC.must;cantD.can;maynot2.Danny_gowithustonight，butheisntverysureyet.A.mustB.mayC.canD.will3._Itakethenewspaperaway?No,youmustnt.You_readitonlyhere.A.Must;canB.May;canC.Need;mustD.Must;must4.Thechildren_playfootballontheroad.A.needntB.canC.mustntD.must,13,情态动词练习,5.MustIdomyhomeworkatonce?No,you_.A.needntB.mustntC.cantD.maynot6.Theresnolighton.They_beathome.A.cantB.mustntC.needntD.shouldnt,14,15,小学不规则动词总结,1、直接+d：agree,bake,believe,close，dance,exercise,like,live,type,welcome2、改y为I加ed：carry,cry,marry,study,try,worry3、双写辅音字母：chat，stop4、有两种变化形式的：learnlearned/learnttravel-traveled/travelled5、不变的：hit-hitput-putcut-cuthurt-hurtread-readlet-letspread-spread,16,小学不规则动词总结,6、特殊变化,17,不规则动词总结,不规则变化：become-becamebegin-beganforget-forgot,ride-rodebend-bent,bite-bit,buy，catch，come,sit-satchoose-chose，do-diddraw-drewdrink-drankdrive-droveeat-atefall-fellfly-flewpay-paidrun-ranget-gotgive-gavego-wenthave/has-hadhearheardrise-roseknow-knewleave-leftmake-mademay-mightmeet-metsay-sai