译林七年级上Unit7Grammar(2).ppt

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1、Unit7Grammar(2)Therebe句型Howmanyboysarethere?Thereisoneboy.Howmanycomputersarethere？Thereisonecomputer.Askandanswer.Howmanydictionariesarethere?Therearethreedictionaries.Howmanycatsarethere?Therearetwocats.A:Howmanychildrenarethere?B:Therearefour.A:Wherearethey?B:Ithin

2、ktheyareintheirclassroom.Whatcanyouseeonthetable?Thereare…Freetalk--Howmanywatermelonsarethere?--Isthereanorangeonthetable?--Isthereany/muchCokeonthetable?--Arethereany/manybananasonthetable?--Thereisawatermelon.--No,thereisn’t.Thereisn’tanorange.--Yes,thereis.Thereis

3、someCoke.--No,therearen’t.Therearen’tmanybananas.Therearesome.Therebe句型Therebe...句型表示的是“某处有(存在)某人或某物”，其结构为“Therebe(is，are，was,were)+名词+地点状语”。如：Therearefifty-twostudentsinourclass.Thereisapencilinmypencil-case.Therewasanoldhousebytheriverfiveyearsago.Therebe句型的肯定句结构:Th

4、ereis+可数名词单数/不可数名词+地点；或Thereare+可数名词复数+地点。否定句结构:在be动词后直接加not一般疑问句结构:把be动词提到句首肯定回答用：Yes,thereis/are.否定回答用：No,thereisn’t/aren’t.1.Thereisacomputeronthedesk.2.Therearetwenty-twoboysandtwentygirlsinmyclass.3.Thereisn’tanyfruitinourfridge.4.Therearen’tanylibrariesinthesmal

5、lschool.5.—IsthereaTVinthelivingroom?    —Yes,thereis.6.—Arethereanyeggsinthebasket?    —No,therearen’t.Butthereissomemeathere.Therebe句型的特殊疑问句及其回答:①提问句子的主语(包括主语前的修饰语)时,句型一律用“Whatis+地点介词短语?”(无论主语是单数还是复数都用is)。Therearesomebirdsinthetree.→What'sinthetree?②就therebe后面的地点状

6、语进行提问时,句型用“Whereis/are+主语?”Thereisacarinthestreet.→Whereisthecar?③提问可数名词(主语)前的数量时,用howmany,句型结构为“howmany+复数名词+arethere+其它?”(主语无论是单数还是复数,be通常要用are)。Thereisacatunderthebed.→Howmanycatsarethereunderthebed?注意事项：Therebe句型要根据就近一致原则来变换be的单复数形式。如：Thereisapenandtwobooksonthede

7、sk.课桌上有一个钢笔和两本书。Therearetwobooksandapenonthedesk.课桌上有两本书和一个钢笔。Therebe结构专项练习。1.ThereaTVinourclassroom.2.Theresomebookcasesinthelibrary.3.Theresomebreadinthebasket.4.Theremanyrulersonthechair.5.Therearedboxonthechair.6.Theresomeboysandgirlsintheplayground.7.Thereabottle

8、ofjuiceonthetable.8.Therefivepianosinthemusicroom.9.Therelotsofteachersintheoffice.10.Therelotsofwaterinthebottle.isareisisa