新概念英语第一册第19课第20课ppt课件.ppt

Nicetoseeyouback 1 Lesson19Tiredandthirsty Whydothechildrenthanktheirmother Becausetheirmotherbuyice creamsforthem 2 Mother What sthematter children What sthematter What swrong 怎么了 有什么事 Girl We retired Boy andthirsty Mum withyou withLily 3 Mother Sitdownhere Areyouallrightnow 同义句 AreyouOknow Boy No wearen t 4 Mother Twoicecreamsplease Mother Hereyouare children Children Thanks MumGirl Theseicecreamsarenice Howmanyicecreamsdotheywant Howaretheicecreams Mother Look There sanicecreamman Thoseboxesareheavy Thesewindowsareopen 5 Mother Areyouallrightnow Children Yes weare thankyou 6 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 7 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 8 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 9 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 thereisn t 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 10 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 Thereisn tamilkmanneartheschool Thereisanappleonthetable 11 桌子上有一个大苹果和两个小苹果 Thereisabigappleandtwosmallapplesonthedesk 12 big small 13 long 14 open 15 Shut 16 heavy light 17 grandfather grandmother 18 Lookatthem Theyarehappy 19 Lookat