八年级英语下册 Unit 7 Whats the highest mountain in the world（第4课时）Section B(1a1d)课件 （新版）人教新目标版.ppt

unit7what sthehighestmountainintheworld 第四课时sectionb 1a 1d weigh的用法 作及物动词 表示 称 的重量 eg caocongthoughtofawaytoweightheelephant 曹冲想出了一个称大象的办法 作不及物动词 表示 量 后接数字 eg sheweighs50kilos 她的体重是50千克 拓展 weight名词 意为 体重 重量 倍数表达法 用形容词表示甲是乙的几倍时 有以下三个句型 倍数 形容词 副词比较级 thaneg thishallisfourtimesbiggerthanmyclassroom 这个大厅比我们的教室大四倍 倍数 as 形容词 副词 aseg asiaisfourtimesaslargeaseurope 亚洲的面积是欧洲的四倍 倍数 thesize height length ofeg thehillisfourtimestheheightofthatsmallone 这座山的高度是那座小山的四倍 用名词表示 量 的倍数时 有以下两个句型 倍数 more 名词 thaneg therearefourtimesmorebooksinourlibrarythaninyours 我们图书馆的藏书 数量 是你们图书馆的四倍 倍数 asmany much 名词 其他 aseg thisisthreetimesasmuchwaterinthiscupasinthatone 这个杯子里的水 量 是那个杯子里的三倍 重点短语归纳atbirth出生时liveupto活到 一 根据句意 选择方框中的单词并用其适当形式填空 1 mom icanlookaftermyselfwell iamalreadyan now 2 thatelephant about5 000kilos 3 babypandasdoesn thaveany 4 arepandasverysmallat yes andpeopleneedtotakecareofthemverycarefully 5 the carspeopledrive the pollutiontherewillbe weighs teeth birth fewer less adult 二 单项选择 6 linda youlookthinner howmuchdoyou now about50kilos a developb risec dropd weigh 7 iknow aboutjinzhouthanyou sotellmesomeplease a littleb morec lessd much 8 mypetdogfeelslikestanding histwolegs a inb byc ond of d c c 9 doyouknowhowtosay6 759inenglish yes a sixthousandsevenhundredandfifty nineb sixthousandandsevenhundredfifty ninec sixthousandsevenhundredfifty nined sixthousandsevenhundredfiftyandnine 10 mygardenis yours 易错题 a twicelargerthanb aslargetwiceasc largertwicethand astwicelargeas a a 三 情景交际 从方框中选择合适的句子补全对话 a howmuchdoyouknowaboutbabypandas b aretheymuchsmallerthananadultpanda a yes 11 b wow that ssmall iknowapandaweighsmanytimesmorethanababy a that sright theadultsweigharound100kilos b 12 howsmallisit a atbirth it sonly15cmlong butanadultisaround150cmlong g d a 13 b no ababypandaispinkanditcan tsee 14 a howlongcanpandaslive b 15 a italsodon thaveanyteeth b theycanliveupto20to30years c whatcolouristhebabypanda d whataboutthesizeofababypanda e isababypan