英语人教版八年级下册：： Unit 7 What’s the highest .ppt

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1、Welcometoourteachers!Unit7What'sthehighestmountainintheworld?SectionA11a—1c【课前自主学习】-准备好，更高效Findouttherules:形容词和副词比较级和最高级的构成long–longer-longestlate--later-latestbig–bigger-biggesteasy–easier-easiestbeautiful–morebeautifulthemostbeautifulgood/well-better-bestlittle-lessleast六小点1.

2、直接+er/est2.以e结尾+r/st3.双写后一个字母+er/est4.辅音字母加y结尾的把y改为i+er/est5多音节词在前面+more/most6.不规则形式形容词比较等级的结构形式原级：主语+be(amisare)+形容词（一人或一物）比较级：主语+be+（形’+er）+than+名词（只能是两者中比较）最高级：主语+be+the+（形’+est）+ofall/(in……)(三者以上比较)Qomolangma[′tʃəuməu,lɑ:ŋmə]theSahara[ðəsə′hɑ:rə]theCaspianSea[ðə′kæspiənsi:]

3、theNile[ðənaɪl]a-1Canyouspeak?你会说吗？squaren.平方metern.米deepadj.深的desertn.沙漠Doyouknowtheseinterestplaces?QomolangmaQomolangmarunsalongtheborderbetweenChinaandNepal.Itiscoveredwithsnowalltheyearround.It’s8844.43high,thehighestintheworld.It’s26kilometerslong.TheNileisthelongestriver

4、intheworld.It’smorethan6600kilometerslong.Itrunsthrough9countries,it’soneofthelargestriverflowsthroughtheinternationalstatesintheworldandrunsintotheMediterraneanSea(地中海)intheend.TheNileTheCaspianSeaTheCaspianSeaisthebiggestlakeintheworld.ItliesintheborderbetweenAsiaandEurope.Th

5、eSaharaisthebiggestdesertintheworld.ItislocatedinthenorthernAfrica,climateconditionsareverybad,isoneoftheearth'smostnotsuitableforbiologicalsurvival.TheSaharaTheYangtzeRiveristhethirdlongestriverintheworld,thefirstAsianrivers.It’s6211.31kilometerslong.TheYangtzeRiverBasin,east-

6、westwidthof3219kilometers,about966kilometerswidenorth-south,passingthrough11provinces.ItrunsintotheEastSeainShanghaifinally.TheYangtzeRiverWhichisthehighestmountainintheworld?WhichisthelongestriverinAsia?...…Talkaboutthesepicturesinpairs.Inasmallgroupsoffour【预习自测组内交流】Inasmallg

7、roupoffourstudents长_____宽_____高______深______最高的山_________最长的河________最深的海_________最大的沙漠________1032米深______8844.43米高_________9600000平方米27190米宽______1).世界上最高的山峰是哪个？____________________________________________________________珠穆朗玛峰___________________________2)Jim比Peter高得多_________

8、_________________________________________________.对于物体