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Therebe结构1．肯定句常见四个基本结构：Therebe,therebe，四兄弟；两个some,两个一，意义：某物在某地Thereisahouseinthepicture.→Thereisa+单数可数名词+....在某地有一个...Thereisanorangeonthetable.→Thereisan+单数可数名词+....在某地有一个...Thereissomewaterintheglass.→Thereissome+不可数名词+....在某地有一些...Therearesomechildrenintheclassroom.→Therearesome+可数名词复数+....在某地有一些...2.在一般疑问句和否定句中，要用any替换掉肯定句中的somesome加可数复，还加+不可数若在否定、疑问句any用在some处Thereisnotahouseinthepicture.→Thereisn’tahouseinthepicture.Thereisnota+单数可数名词+....Thereisn’tThereisnotanorangeonthetable.→Thereisn’tanorangeonthetable.Thereisnotan+单数可数名词+....Thereisn’tThereisnotanywaterintheglass.→Thereisn’tanywaterintheglass.Thereisnotany+不可数名词+....Thereisn’tTherearenotanychildrenintheclassroom.→Therearen’tanychildrenintheclassroom.Therearenotany+可数名词复数+....Thereisn’t练习1：用is或are填空1.There________manymonkeysinthemountain.2.There_______abeautifulgardeninourschool.3.There_________somewaterintheglass.4.There__________somebreadonthetable.5._________thereanymapsonthewall?6.There__________twentydesksinourclassroom.7.There__________abirdinthetree.8.There__________sometreesnearthehouse.9.________thereacupofteaonthetable?10.There_________someapplejuiceintheglass.11.There_____abedandtwochairsinBetty'sroom.12.There__________somemilkinthebottle.13.There__________somechildreninthepark.14.There__________anicecreamintheboy’shand.15.There__________ateacherandmanystudentsinourclassroom.16.There_______manybirdsandalionintheforest.17.There__________anorangeonthetable.18.There__________manythingsoverthere19.There__________aneraserinthepencil-case.20.There__________afootballmatchontelevisionthisevening3.变为疑问句将Be（am,is,are）动词提前，句号变问号。肯定回答用Yes，thereis/are.否定回答用No,thereisn’t/aren’t.Thereisahouseinthepicture.Isthereahouseinthepicture？Therearesomehousesinthepicture.Arethereanyhousesinthepicture?练习2：将下列句子变成否定句。1.Thereisawomannearthehouse.____________________________________________2.Therearesomebusesnearthehill.________________________________________3.Therearesomeapplesinthetree.________________________________________4.Therearesomeorangesintheglass.________________________________________5.Therearemanybeautifulflowersinthegarden.________________________________________6.Thereisabookcaseinmystudy(书房).________________________________________7.Thereisasoccerballandabasketballonthefloor.________________________________________8.Therearesomebigtreesbehindmyhouse.________________________________________9.Therearesomebooksonthedesk.________________________________________10.Thereareknivesintheroom.________________________________________11.Therearesomeflowersandadeskintheroom.________________________________________12.Thereisarulerinthebag.________________________________________