R七年级上册SectionA第2课时Unit3Isthisyourpencil?Isthis______(you)pencil?Yes,________.youritisReviewIsthis____(I)book?No,__________.Thisis______(you)book.myitisn’tyourIs___________(he)book?________,itis.thishisYesNewwordsexcusev.mepron.excusemeteachern.aboutprep.yourspron.thankv.forprep.helpv.&n.welcomeadj.原谅；宽恕我劳驾，请原谅老师；教师关于你的；你们的感谢；谢谢为了；给；对帮助；援助受欢迎的GrammarFocusIsthisyourpencil?Yes,itis.It’smine./No,itisn’t.It’shers.Isthishisgreenpen?Yes,itis/No,itisn’t.Thebluepenishis.Isthatyourschoolbag?Yes,itis./No,itisn’t.It’shis.Aretheseyourbooks?Yes,theyare./No,theyaren’t.They’rehers.Arethoseherkeys?Yes,theyare./No,theyaren’t.They’remine.Attention!it’s＝itisisn’t＝isnotaren’t＝arenotLanguagepoints一、含有动词be的一般疑问句【观察领悟】仔细观察例句,体会含有动词be的一般疑问句及其回答。1.Isthisamap?这是一张地图吗?2.Areyouastudent?你是一名学生吗?3.—Isthataplane?那是一架飞机吗?—Yes,itis.是的,它是。4.—Isthisyourwatch?这是你的手表吗?—No,itisn’t.不,它不是。5.—Areyouadoctor?你是名医生吗?—No,I’mnot.不,我不是。【句型剖析】（1）一般疑问句的概念：能用yes或no回答的问句就叫一般疑问句。（2）含有be动词的陈述句变一般疑问句的方法：※将be动词提至句首※将句末标点改为问号※将第一人称变为第二人称，即I由you替换;my由your替换；相应地am也变为are.简单归纳即为：一提二变三替换。MaryisanEnglishgirl.一般疑问句是：IsMaryanEnglishgirl?Iaminmyclassroom.一般疑问句是：Areyouinyourclassroom?(3)含有be动词的一般疑问句的回答方式：①肯定回答：Yes,主语+be(am,isare).其中，be动词不能与主语缩写。②否定回答：No,主语+be(am,is,are)+not.其中be可以与not缩写，但am不能与not缩写。如：——IsthisanIDcard?——Yes,itis.——AreyouMr.Smith?——No,I’mnot.（4）一般疑问句的语调：读一般疑问句用升调↑，其简略回答用降调↓。【温馨提示】疑问句的主语是第一人称,回答时主语要换成第二人称;疑问句的主语是第二人称,回答时主语要换成第一人称;疑问句是第三人称,回答时主语不变。——AmIright?我是对的吗?——Yes,youare.是的,你是对的。/No,youaren’t.不,你不对。——AreyouAlan?你是艾伦吗?——Yes,Iam.是的,我是。/No,I’mnot.不,我不是。【学以致用】用be动词的适当形式填空1.——Howareyou?——IOK,thanks.2.Oh,thisblackpenPeter’s.3.——Whoisthewoman?——SheourEnglishteacher.4.Bob’stwoauntsonthesofa.amisisare5.JerryandLoestudentsatSunshineMiddleSchool.6.—theblackpenyours?—Yes,it’smine.7.Thesemyfriends,BobandCindy.8.—Whotheboyinthephoto?—He’smycousin,LiLei.areIsareis二、物主代词【观察领悟】仔细观察例句,体会形容词性物主代词与名词性物主代词的用法不同。1.——Isthisyourpencil?——Yes,itis.It’smine.2.——Isthishisgreenpen?——No,itisn’t.Thebluepenishis.3.——Aretheseyourbooks?——No,theyaren’t.They’rehers.【知识构建】表示所有关系的代词叫做物主代词(PossessivePronouns),也叫人称代词的所有格。物主代词分为形容词性物主代词和名词性物主代词两种。物主代词有人称和数的变化。人称代词与其对应的物主代词见下表:人 称形容词性物主代词名词性物主代词Imymineyouyour(你的)yourshehishissheherhersititsitsweouroursyouyour(你们的)yourstheytheirtheirs【学以致用】用所给词的适当形式填空1.AliceandBillare(I)goodfriends.2.Thesebooksare(I).3.ThegirlisAnnandthisis(she)mother.4.Thisbookis(she).5.(her)isSusan,mysister.mymineherhersShe3aCompletethequestionsandanswersabouteachpicture.Is_______yourbook?Yes,itis.No,it________.Are_______mypencils?Yes,_______are.No,theyaren’t.Is_______hisruler?Yes,it________.No,itisn’t.Are_______herpens?Yes,theyare.No,they_______.thisIsn’tthesetheythatisthosearen’tnot和no的区别：（1）not用于构成否定形式，置于句中，常放在be动词、情态动词can等、助动词do的后面，可与前面的词缩成一个词，但不能独立使用。如：Thisisnot(isn’t)apen.Icannot(can’t)come.Idonot(don’t)know.Languagepoints(2)no常用于带冠词(a,an,the)的名词前，主要修饰可数名词，此时，既可放在单数名词前，也可放在复数名词前。在no+名词的结构中，名词前不能加any,much等词。*Ithasnotail.它没有尾巴。Tomhasnobooks.汤姆没有书。Thereisnowaternow.现在没有水。1.Isthisherruler?2.IsthatEric’sschoolbag?Yes,_______.It’s________.No,_________.______Sally’s.itishersitisn’tItis3bReadthequestionsandcompletetheanswers.3.Arethesehispencils?4.ArethoseAnna’sbooks?Yes,_______.They’re________.No,____________._________mine.theyarehistheyaren’tThey’re3cPutsomethingsintotheteacher’sbox.Thentakeonethingoutoftheboxandfindtheowner.Youonlyhavetwoguesses!No,itisn’t.FindtheOwner!A:Isthisyour…?B:Yes,itis.No,itisn’t.GameIsthisyoureraser?No,itisn’t.Isthisyourruler?Yes,itis.单项选择1.—Isthisyourpencil?—Yes,.A.it’sB.itisC.itsD.isit2.—IsthatAlice’sdictionary?—Yes,it’s.A.hisB.hersC.mineD.yoursExercise3.—ArethoseTom’spens?—No,aren’t.A.theseB.thoseC.itD.they4.Thisisn’tbook.It’s.A.my;herB.my;hersC.mine;herD.mine;hers5.Thankyouyourphotos.A.atB.forC.ofD.to句型转换1.Thatishisschoolbag.(变为一般疑问句)______hisschoolbag?(作肯定及否定回答)Yes,____./No,_______.2.Thesearehererasers.(变为一般疑问句)_________hererasers?(作肯定及否定回答)Yes,_________./No,___________.Isthattheyareitisn’titisArethesetheyaren’t3.Thisishergreenjacket.(改为同义句)Thisgreenjacketis_____.4.Mypenisred.Whatcolorisyourpen?(同义句)Mypenisred.Whatcoloris________?5.Thisishisgreenjacket.(改为同义句)Thisgreenjacketis_____.6.Yourpenisred,mypenisred,too.(同义句)Yourpenisred,______isred,too.hersyourshismine补全对话,每空一词A:1me,Mary.2theseyourpencils?B:3,theyareHelen’s.A:And4thishereraser?B:No,it5.It’sDale’s.A:What6thisruler?B:It’sCindy’s.Andthepenis7,too.A:Andthedictionary?Isthatyours?B:Yes,it’s8.A:Thankyou9yourhelp,Mary.B:You’re10.1.________2.3._________4.________5.6._________7.8._______9.__________10.ExcuseAreNoisisn’tabouthersmineforwelcome同学们，这一课学习的单词你们都掌握了吗？现在大家来检验一下，点击下面的视频开始听写吧！
