therebe概念结构用法Therebe句型表示“存在…”“有”,其中be动词有时态和单复数变化。Therebe+主语(人或物名词)+地点Therearetwoboysunderthetree.Therearemanybooksinmybag.1.Thereis+单数可数名词/不可数名词.Thereisabirdinthetree.Thereissomewaterintheglass.2.Thereare+复数名词+地点状语.3.就近原则几个并列主语时,be动词的形式要与离其最近的一个主语在人称和数上保持一致。1.Thereisakitchenandthreebedroomsinmyhome.2.Therearethreebedroomsandakitcheninmyhome.Thereisacatunderthetree.Therearetwodogsunderthetree.Thereisacatandtwodogsunderthetree.Therearetwodogsandacatunderthetree.121.Therebe表示“某处存在某物或某人”此时不强调物归谁有。Thereisaboxonthedesk.2.have(has)表示“某人拥有某物(某人)“,此时强调所有、拥有关系。Wehavetwobasketballs。变为否定:在be后加上not即可。→Therearen'tanypicturesonthewall.→Thereisn'tabikebehindthetree.1.Therearesomepicturesonthewall.2.Thereisabikebehindthetree.be动词提到句首。some变any,其他都不变1.Thereisamouseinthehouse.(变成一般疑问句)Isthereamouseinthehouse?2.Therearesomeflowersinthegarden.(变成一般疑问句)Arethereanyflowersinthegarden?Yes,thereis.No,thereisn't.Yes,thereare.No,therearen't.1.There_____aclockonthetable.A.isB.are2.____thereamaponthewall?Yes,there______.A.Are/isB.Is/areC.Is/isD.Are/are3.There_____somestudentsintheclassroom.A.areB.is4.There_____apencil,abookandtwopensonthetable.A.isB.are5.There___twoapples,oneorangeandonebananaonthetable.A.isB.are单项选择用恰当的be动词填空。1、There_____threepencilsinthepencilbox.2、There_____somemilkintheglass.3、There____apictureandamaponthewall.4、There____aboxofrubbersnearthebooks.5、There______lotsofflowersinourgarden.6、There_____fourcupsofcoffeeonthetable.areareareisareis将下列句子变为否定句和一般疑问句1.Thereissomewaterinthebottle.2.Therearemanyapplesinthebox.Thereisnotanywaterinthebottle.Isthereanywaterinthebottle?Therearenotmanyapplesinthebox.Aretheremanyapplesinthebox?Therebe口诀Therebe有特点,主语放在be后面,单数主语用is,复数主语要用are。变否定很简单,be后要把not添。变疑问也不难,把be提到there前。否定疑问any换,就近原则多多练。