人教版八年级下册Unit 7 Whats the highest mountain in the world？ SectionA 1a-1c课件(共22张PPT).pptxVIP

人教新目标GoForIt八年级英语下册Unit7whatsthehighestmountaininthewordSectionA1a-1cQomolangmaSaharaTheCaspianSeaTheNilePresentationsquaren.平方广场正方形方格metern.米eg:Tian’anMenSquare65squaremetersHowhighisQomolangma?8848.86meightthousandeighthundredandforty-eightpointeightsixItis8,848.86metershigh.Whereisit?ItisinAsia.n.亚洲Itsthehighestmountainintheworld.Itshigherthananyothermountainintheworld.形容词比较级和最高级的构成规则变化a.一般情况下，单音节或双音节的形容词比较级直接加-er,最高级直接加-est。b.以-e结尾的形容词，比较级+-r,最高级+-st。c.以辅音字母+y结尾的形容词，变y为i+er或+est。d.以重读闭音节结尾，末尾只有一个辅音字母结尾的词，双写最后一个辅音字母，再加+er或+est。e.多音节和部分双音节形容词，需在原级前+more构成比较级，+most构成最高级。不规则变化原级比较级最高级good/wellbetterbestbad/illworseworstlittlelessleastmany/muchmoremostfarfarther/furtherfarthest/furthestoldolder/elderoldest/eldest6,671kmHowlongistheNile?sixthousandsixhundredandseventy-oneItis6,671kilometerslong.Itsthelongestriverintheworld.Itslongerthan_________________intheworld.anyotherriverdesertn.沙漠adj.荒芜的inthedesertdeepadj.深的deeplyadv.在深处Thetopoftheworld(世界之最）biggestdesert?deepestsaltlake(咸水湖）?longestriver?highestmountain?HowbigisTheSahara?9,600,000k㎡ninemillionsixhundredthousandItisabout9,600,000squarekilometersinsize.thebiggestIts_________________desertintheworld.biggerthananyotherdesertIts__________________________intheworld.HowdeepistheCaspianSea?1025monethousandandtwenty-fiveItis1,025metersdeep.thedeepestIts_______________saltlakeintheworld.anyotherItsdeeperthan___________saltlakeintheworld.QomolangmaQomolangmarunsalongtheborderbetweenChinaandNepal.Itiscoveredwithsnowalltheyearround.It’s8844.43high,thehighestintheworld.It’s26kilometerslong.1aMatchthefactsyouknow.Qomolangmaabout9,600,000squarekilometersinsizeTheSahara1,025metersdeepTheCaspianSea6,671kilometerslongTheNile8,8