英语人教版八年级下册第七单元unit7SectionB.ppt

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1、Unit7What’sthehighestmountainintheworld?SectionBPeriodOne预习检测：用适当的介词或副词填空1.Thepandacanstand___twolegs.2.Mypetdogeatshalfakilo___meateveryday.3.___birth,littleTomwasonly2kilos.4.Thelittleelephantis____twoyearsold.5.Doyouthinkpeoplewillliveup___200years?o

2、nofAtabouttoObjectives掌握倍数表达法Tolearnnewwords:weigh,atbirth,liveupto问题引导下的再学习Comparefactsaboutthesetwoanimals.Usethelanguageintheboxtohelpyoumakesentences.(1a)Examplesentence:Thiselephantweighsmanytimesmorethanthispanda.(200cmtaller/shorter,weighmuchmore/

3、less,eatmuchmore/less,eatmanytimesmore.)Thispandais200cmshorterthanthiselephant.Thiselephanteatsmuchmorethanthispanda.Thiselephantweighsmanytimesmorethanthispanda这头大象比这只大熊猫重许多倍time在句中的意思是____,是____(可数/不可数）名词，用来表示三倍及以上的倍数，表达倍数常用以下句型：1.A+谓语+…..times+形容词或副词

4、的比较级+than+B练习：这棵树比那棵高三倍。你的书包比我的大三倍倍，倍数可数ThistreeisthreetimestallerthanthatoneYourbagisthreetimeslargerthanmine2.A+谓语+….times+as+形容词或副词的原级+asB练习：起居室是厨房的三倍3.A+谓语+…..times+the+计量单位（size/lengh/height/weight…..)+of+B练习：你的蛋糕的大小是我的蛋糕的四倍Thelivingroomisthreetimes

5、aslargeasthekitchenYourcakeisfourtimesthesizeofmine观察思考：Howmuchdoesitweigh?此句中weigh是___词，意思是____________Heweighedthefruit.此句中weigh是___词，意思是____________What’stheweightofthelittledog?此句中weight是_______词，意思是________动重量是……动称…..的重量不可数名重量，体重拓展：weight常用于短语losewe

6、ight“减肥”Listenandcheck()thenumbersyouhear._____100______16_______20_____20______50______120_____0.1______0.2_______1501b√√√√√√Listenagainandcompletethesentences.Atbirth,ababypandaisabout___to___kilos.Atbirth,ababypandaisabout____cmlong.Ababypandaisnotbla

7、ck.Itis____andithasno_____.Apandacanliveupto___to___years.1c0.20.1pink1520teeth30观察1c,找出短语“出生时”______练习：我的女儿出生时重三公斤。“活到…..岁”_______________练习：我希望我的父母能活到100岁atbirthMydaughterweighted3kilosatbirth.liveupto…..yearsIhopemyparentscanliveupto100years.拓展：upto….

8、.“至多有…….”练习：Icantake_____(至多有)fourpeopleinmycaruptoReview课时重点回顾weigh的用法倍数表达法重要短语Quiz注:另附word文档。点击此处链接达标检测1.我弟弟重大约四十公斤。Mybrother______about_________.2.刚出生时，一只熊猫重大约0.1到0.2公斤________,ababypandaisabout0.1to0.2kilos3.所有铅笔中这支铅笔最