新概念英语第一册第19课第20课.ppt

Nicetoseeyouback!,Lesson19Tiredandthirsty,Whydothechildrenthanktheirmother?,Becausetheirmotherbuyice-creamsforthem.,Mother:Whatsthematter,children?Whatsthematter?Whatswrong?怎么了？/有什么事？Girl:WeretiredBoy:andthirsty,Mum.,withyou,withLily,Mother:Sitdownhere.Areyouallrightnow?,同义句：AreyouOknow?,Boy:No,wearent.,Mother:Twoicecreamsplease.Mother:Hereyouare,children.Children:Thanks,MumGirl:Theseicecreamsarenice.,Howmanyicecreamsdotheywant?,Howaretheicecreams?,Mother:Look!Theresanicecreamman.,Thoseboxesareheavy.,Thesewindowsareopen.,Mother:Areyouallrightnow?,Children:Yes,weare,thankyou!,1.Therebe句式通常带有一个地点，表示在某地有某物。如：Thereisablackboardintheclassroom.Therearetwoemptybottlesonthedesk.,Therebe结构的用法,2.该句式中be动词的单复数形式取决be动词后面的名词：be动词后面的名词是单数，be动词用is;be动词后面的名词是复数，be动词用are.Thereisaboyintheroom.Therearethreeredapplesonthetable.,3).如果该句式的主语是由几个名词并列构成，则按就近原则处理，即与靠近be动词的第一主语保持一致Thereisabook,adictionaryandtwopensonthedesk.Therearetwopens,abookandadictionaryonthedesk.,4.Therebe句式变疑问句时，只需要把be动词提到there的前面就可以了。Isthereapolicemanintheroom?Yes,thereis./No,thereisnt.5.Therebe句式变否定句时，只需要把be动词后面加not就可以了Thereisnotapolicemanintheroom.,There_apolicemanintheroom.,is,1.There_5orangesand4pears.2.There_abookandtwodictionaries.3.There_twomapsandapicturesonthewall.4.Thereisanice-creammannearthetree.(变一般疑问句）_5.Thereisamilkmanneartheschool.(变否定句）_6.桌子上有一个苹果。_,练习题,are,is,are,Isthereanice-creammannearthetree?,Thereisntamilkmanneartheschool.,Thereisanappleonthetable.,桌子上有一个大苹果和两个小苹果。,_,Thereisabigappleandtwosmallapplesonthedesk.,big,small,long,open,Shut,heavy,light,grandfather,grandmother,Lookatt