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1、Unit3Isthisyourpencil?WhatsthisinEnglish?vpencilv铅笔WhatsthisinEnglish?WhatsthisinEnglish?vpenv钢笔Itsapen.book书WhatsthisinEnglish?Itsabook.booksWhatsthisinEnglish?veraserv橡皮擦Itsaneraser.WhatsthisinEnglish?vrulerv尺子Itsaruler.WhatsthisinEnglish?vpencilboxv铅笔盒Itsapencilbox.WhatsthisinEnglish?vschoolbagv书
2、包Itsaschoolbag.vdictionaryv字典Itsadictionary.vpencil铅笔vbook书veraser橡皮擦vpencilbox铅笔盒vschoolbag书包vdictionary字典vThisisherruler.vIsthisherruler?vYes,itis./No,itisnt.v(isnt=isnot)vThisishispencil.vIsthishispencil?vYes,itis./No,itisnt.v(isnt=isnot)vTheseareherbooks.vAretheseherbook?vYes,theyare.vNo,theyare
3、nt.v(arent=arenot)一般疑问句一般疑问句Is this your pencil?（肯定回答）Yes, it is.（否定回答）No, it isnt.lisnt = is not特点及注意：特点及注意：1、问句使用升调、问句使用升调2、把、把be动词提前动词提前3一般疑问句必须先用一般疑问句必须先用 yes或或no回答回答.4、肯定回答时，、肯定回答时，it is 不不 能写成能写成its.Thisisaruler.（改为一般疑问句）aruler?IsthisvThatismyeraser.v(改为一般疑问句并做肯定回答）veaser?v,.IsthatyourNoitisnt
4、vIsthishisdictionary?v(改为陈述句)v_dictionary.ThisishisvThatisherbook.v(改为一般疑问句并做否定回答)herbook?_,_.IsthisNoitisnt改错1Isthisabook?Yes,itisnt.2Isthatyourdictionary?Yes,its.3Whatsthat?Itsruler.vItsaneraser.vIts her eraser.vIts hers.v(hers= her eraser)Itsapencilbox.Itsmypencilbox.Itsmine.mine=mypencilboxvItsa
5、pencil.vItsyourpencil.vItsyours.yours=yourpencilvIts a schoolbag.vIts his schoolbag.vIts his.v(his=his schoolbag)形容词性物主代词vmyvyourvhisvherv形容词性物主代词起形容词的作用，用在名词前v(举例)名词性物主代词vmine(mine=my+名词)vyours(yours=your+名词）vhis(his=his+名词)vhers(hers=her+名词)v名词性物主代词=形容词性物主代词+名词v(为了避免重复)v(后面就不再加东西了)vIsthisyourpen?v
6、No,itisnt.Itsherpen.v(为了避免重复)vNo,itisnt.Itshers.v(hers=herpencil)vIsthisherpencil?vNo,itisnt.Itsmypencil.v(为了避免重复)vNo,itisnt.Itsmine.v(mine=mypencil)vIsthishereaser?vYes,itshereraser.v(为了避免重复)vYes,itshers.vIsthatyourschoolbag?vNo,itisnt.Itshisschoolbag.v(为了避免重复)vNo,itisnt.Itshis.v注意：在使用名词性物主代词时，必须有特
7、定的语言环境，也就是要省略的名词大家已经知道，已经提起过。v例：Itshers.v是她的。（单独使用大家不知是怎么回事，不可以这样用）vThereisabook.Itshers.v那有本书。是她的。（先提及，大家才明白）2alistenandcheck()thethingsyouhear.P 82b listen and completeListen and complete the conversation with the words in the box2berasers pencil ruler pencil box booksTom: Excuse me,Grace.Is this
8、your ? Grace: Yes,thank you.And those are my . Tom: And Jane,is this your ? Jane: No,it isnt. Its hers.Tom: OK,and these are my . This is your ,Jane. eraserspencilrulerpencil boxbooks可数名词有可数名词有单数和复数单数和复数两种形式。名词的复两种形式。名词的复数形式的部分规则如下：数形式的部分规则如下：一般情况加一般情况加spencil pencils, pen pens , book books, boy boy
9、s以以s, sh, ch, x 等结尾的加等结尾的加esclass-classes ,box-boxes,watch-watches,以辅音字母以辅音字母y结尾的词，结尾的词，变变y为为i,在加在加esdictionarydictionaries,family- families不规则变化：不规则变化：manmen, woman women, footfeet, a Chinese three Chinese, child-childrenv1、一般在词尾加、一般在词尾加s.cups杯子days日子hands手hats帽子pens笔pencils铅笔v2、以、以s,sh,ch,x结尾的词在词尾
10、加结尾的词在词尾加esclass-classes班级bus-buses公共汽车box-boxes盒子watch-watches手表v3.以辅音字母加以辅音字母加y结尾的词，变结尾的词，变y为为i，再加，再加esarmy-armies军队story-stories故事factory-factories工厂baby-babies宝贝dictionary-dictionaries字典family-families家庭 4.以以o结尾的词，多数加结尾的词，多数加sphoto-photos,kilo-kilos公里 少数以少数以o结尾的词，在词尾加结尾的词，在词尾加estomato-tomatoes西红
11、柿hero-heroes英雄potato-potatoes土豆(番茄，土豆，英雄)v5、以、以f或或fe结尾的词，多数把结尾的词，多数把f,fe变为变为v，再，再加加esleaf-leaves树叶thief-thieves小偷wife-wives妻子knife-knives小刀shelf-shelves架子不规则变化vman-men男子woman-women女人foot-feet脚goose-geese鹅tooth-teeth牙齿mouse-mice老鼠child-children小孩单复数同形vsheep-sheep绵羊deer-deer鹿Chinese-Chinese中国人Japanese-Japanese日本人
