七年级英语上册 Unit 3 Is this your pencil Section A（Gramm

Unit3Isthisyourpencil?TheSecondPeriodSectionA(GrammarFocus-3c)WarmingupWritedownthethingsinEnglish.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.It's=itisisn't=isnotaren't=arenot3aCompletethequestionsandanswersabouteachpicture.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't3bReadthequestionsandcompletetheanswers.1.Isthisherruler?2.IsthatEric’sschoolbag?3.Arethesehispencils?4.ArethoseAnna’sbooks?Yes,_________.It’s_________.No,_________._________Sally’s.Yes,_________.They’re_________.No,_________._________mine.itishersitisn'tIt'stheyarehistheyaren'tThey're3cPutsomethingsintotheteacher'sbox.Thentakeonethingoutoftheboxandfindtheowner.Youonlyhavetwoguesses!Isthisyoureraser?No,itisn't.语法拓展一、be动词引导的一般疑问句及回答在第一单元我们已经初步学习了含有be动词的一般疑问句，即“be动词+主语（指示代词）+其他？”。当主语是指示代词this/that,作省略回答时，要用it代替；当主语是指示代词these/those,作简略回答时，要用they代替。—Isthathispen?—Yes,itis.—Aretheseyourpencils?—No,theyaren't.注意：第一人称改为一般疑问句要进行人称转换。Thisismypencil.（改为一般疑问句）正：Isthisyourpencil?误：Isthismypencil?二、名词性物主代词在英语中，物主代词是表示所有关系的代词，分为形容词性物主代词（第一单元已学过）和名词性物主代词（本单元所讲）两种。概念：名词性物主代词也是用来表示所有关系的代词，有人称和数的变化。第一人称第二人称第三人称单数mineyourshis/hers/its复数oursyourstheirs语法拓展2.用法：(1)名词性物主代词在句中可单独使用，后面不能接名词，其作用相当于一个名词，通常在句中作主语、宾语或表语。有时为了避免重复用名词，而用名词性物主代词来代替形容词性物主代词加名词形式。（2）名词性物主代词作主语时，谓语动词的单复应随所指物品的单复来定。Thoserulersarehis.Yoursarered.3.与形容词性物主代词之间的关系：名词性物主代词=相应的形容词性物主代词+名词Thisismybike.Thatisyours.(yours=yourbike)如：myredpen我的红色钢笔Exercise一、用括号中所给单词的适当形式填空。1.—Isthis_________ruler?—No,it's________(she).It'snot________(I).2.Myfatherandmotherareteachers.________(them)areverybusy(忙的).3.—Arethese_________(you)pencils?—No,theyaren't.They're_________(he).4.Theeraserisnot________(you).It's________(I).5.—Whoisit?—It's________(I)brother.yourhersmineTheyyourhisyoursminemy二、句型转换。1.Thosearemykeys.(改为一般疑问句，并作否定回答)—____________________________keys?—_________,__________________.2.AreyouJim?(作肯定回答)Yes,__________________.3.IssheyourEnglishteacher?(作否定回答)No,__________________.ArethoseyourNotheyaren'tIamsheisn'tHomework1.ReciteGrammarFocus.2.FindouttheEnglishwordsofschoolthingsyouknow.Thankyou!