英语人教版八年级下册Unit 7 SectionA 1a~1c.ppt

Unit7Whatsthehighestmountainintheworld?,WordsandExpressions,SectionA11a1c,Relaxyourselfandenjoylife,Doyouhavestressfromwork,schoolorlife?Whynottravelaroundtheworld?Letsenjoythebeautifullandscapesaroundtheworld!,Qomolangma,QomolangmarunsalongtheborderbetweenChinaandNepal.Itiscoveredwithsnowalltheyearround.Its26kilometerslong.,theSahara,TheSaharaislocatedinthenorthernAfrica,climateconditionsareverybad.Itisoneoftheearthsmostnotsuitableforbiologicalsurvival.,theCaspianSea,TheCaspianSeaisthebiggestlakeintheworld.ItliesintheborderbetweenAsiaandEurope.,theNile,TheNilerunsthrough9countries,itsoneofthelargestriver.,theYangtzeRiver,TheYangtzeRiveristhethirdlongestriverintheworld.Itpassesthrough11provinces.ItrunsintotheEastSeainShanghaifinally.,Learnthewordsandexpressions.,Presentation,squaren.平方,metern.米,deepadj.深的,desertn.沙漠,Qomolangma,珠穆朗玛峰,TheCaspianSea,里海,TheNile,尼罗河,TheSahara,撒哈拉沙漠,squaremeterdeepdesertQomolangmaTheNileTheSahara,Words,n.米；公尺,adj.深的；纵深的,n.沙漠,珠穆朗玛峰,尼罗河,撒哈拉沙漠,n.平方；正方形,TheCaspianSea,里海,thelongestriverintheworld.,TheNile,-Doyouknowhowlongitis?,-Itsmorethan6,671kilometerslong,Beautifullandscapes,Thesecondlongestriverintheworld,-Doyouknowitsname?-ItistheAmazonRiver.-Doyouknowhowlongitis?-Itsabout6,500kilometerslong.,ThelongestriverinAsia.,TheYangtzeRiver,-Doyouknowhowlongitis?,-Itis6,211.31kilometerslong.,Thehighestmountainintheworld.,-Doyouknowhowhighitis?,-Itis8,844.43metershigh.,Qomolangma,DoyouknowSaharaisthebiggestdesertintheworld?-Howlargeisit?,-Itisabout9,600,000squarekilometersinsize.,TheSahara,Theworldsdeepestsaltlake,TheCaspianSea,DoyouknowthathowdeeptheworldsdeepestSaltlakeis?,-Itis1,025metersdeep.,-Howdeepisit?,1,025,Howdoyoureadthesenumbers?,6,671,9,600,000,8,844.43,8,844.43metershigh,Qomolangma,eightthousandeighthundredandforty-fourpointfourthree,Whatdoyouknowaboutthefollowingnumbers?,1,025metersdeep,TheCaspianSea,Onethousandandtwenty-five,Whatdoyouknowaboutthefollowingnumbers?,6,671kilometerslong,TheNile,Sixthousandsixhundredandseventy-one,Whatdoyouknowaboutthefollowingnumbers?,9,600,000squarekilometersinsize,TheSahara,Ninemillionsixhundredthousand,6,671sixthousandsixhundredandseventy-one1,025onethousandandtwenty-five8,844.43eightthousandeighthundredandforty-fourpointfourthree9,600,000ninemillionsixhundredthousand,Readtogether,Qomolangma,Qomolangmaisthehighestmountainintheworld.,-HowhighisQomolangma?,Questions:,-It,s8,844.43metershigh.,TheCaspianSea,-Its1,025metersdeep,TheCaspianSeaisthebiggestlakeintheworld.,-Howdeepisit?,TheNile,-Its6,671kilometerslong.,TheNileisthelongestriverintheworld.,-HowlongisTheNile?.,TheSahara,-Its9,600,000squarekilometersinsize,TheSaharaisthebiggestdesertintheworld.ItislocatedinthenorthernAfrica.,-HowlargeistheSahara?,1aMatchthefactsyouknow.,8,844.43metershigh.8,844.43米高metershigh(long,wide)英语表示“多长，多宽，多高”时，一般将数词和数量单位放在表示长宽高的形容词前。e.g.Thewallis1.7metreswide.,Explaination,翻译句子：1.这张桌子两米长，一米宽。2.这座山有1500米高。3.这栋楼120米高。4.这本字典有五厘米厚。5.这个湖有多深？1025米深。,Thetableistwometerslongandonemeterwide.,Themountainis1,500metershigh.,Thebuildingis120meterstall.,Thedictionaryisfivecentimetersthick.,Howdeepisthelake?Its1,025metersdeep.,A:Howhigh/deep/long/largeis.?B:Its.high/deep/long.,PracticeMakeconversations,Sample,Thebiggestdesertintheworldisabout9,600,000squarekilometersinsize.,A:HowlargeistheSahara?,B:Itsabout9,600,000squarekilometersinsize.,A:Howhigh/deep/long/largeis.?B:Its.high/deep/long.,PracticeMakeconversations,1bListenandcompletethesentences.,1.Qomolangmais_thananyothermountainintheworld.2.TheSaharais_desertintheworld.3.TheCaspianSeais_ofallthesaltlakes.4.TheNileis_riverintheworld.,higher,thebiggest,thedeepest,thelongest,Listenagainandanswerthefollowingquestions.,1.Whatsthehighestmountainintheworld?2.Whatsthebiggestdesertintheworld?3.Whichisthefirstlongestriverintheworld?4.Whichisthesecondlongestriverintheworld?,Qomolangma,TheSahara,TheNile,TheAmazonRiver,A:Whatisthehighestmountainintheworld?B:Qomolangma.,1c,Pairwork,Usetheinformationin1btomakeconversations.,A:Whatisthebiggestdesertintheworld?B:TheSahara.,Example1:,A:Whatisthelongestriverintheworld?B:TheNile.,Example2:,1,001,Readoutthefollowingnumbers,3,312,2,022,4,312,001,Onethousandandone,Twothousandandtwenty-two,Threethousandthreehundredandtwelve,Fourmillionthreehundredandtwelvethousandandone,用括号内所给词的适当形式填空。1.Thisbookisas_(interesting)asthatone.2Whichis_(