英语人教版八年级下册Unit7 课件.ppt

SectionA11a 2c Unit7What sthehighestmountainintheworld Freetalk 班级之最 Let sreadnumbers 2 3451656 671600 0009 600 0001 300 000 000 twopointthree forty five onehundredandsixty five sixthousandsixhundredandseventy one sixhundredthousand ninemillionsixhundredthousand onebillionthreehundredmillion billion十亿 million百万 thousand千 111 121 435 678111 121 435 678 onehundredandelevenbilliononehundredandtwenty onemillionfourhundredandthirty fivethousandsixhundredandseventy eight 十亿的读法 Canyoureadthem 8 4485 6544 3219 54323 34534 66643 23367 321 2米长1米宽150米高1125米深1 5米厚9 600 000平方公里 twometerslong onemeterwide onehundredandfiftymetershigh onethousandonehundredandtwenty fivemetersdeep onepointfivemetersthick 数词 单位 形容词 long wide high deep thick 面积 数词 单位 insize ninemillionsixhundredthousandsquarekilometersinsize 1 025 Howdoyoureadthesenumber 6 671 9 600 000 8 844 43 Whatdoyouknowaboutthenumber8 8844 43 Qomolangma Whatdoyouknowaboutthefollowingnumbers 1 025metersdeep TheCaspianSea Whatdoyouknowaboutthefollowingnumbers 6 671kilometerslong TheNile Whatdoyouknowaboutthefollowingnumbers 9 600 000squarekilometersinsize TheSahara Matchthefactsyouknow 1a metershigh meterslong metersdeep 8 844 43 6 671 1 025 squarekilometersinsize 9 600 000 Qomolangma theNile theCaspianSea theSahara Howhigh long deep bigis 1bListenandcompletethesentences 1 Qomolangmais thananyothermountainintheworld 2 TheSaharais desertintheworld 3 TheCaspianSeais ofallthesaltlakes 4 TheNileis riverintheworld higher thebiggest thedeepest thelongest anyother n单数 A What sthehighestmountainintheworld B Qomolangma It shigherthananyothermountainintheworld C Howhighisit D It s8848 43metershigh 1c Pairwork Usetheinformationin1btomakeconversations Geographicalfacts地理常识 thelongestriver has thebiggestpopulation thehighestmountain thebiggestcountry thebiggestdesert thebiggestsaltlake thebiggestocean thebiggestcontinent 1 TheNile2 TheAmazonRiver3 YangtzeRiver RussiaCanadaChina TheSahara TheCaspianSea Asia ThePacificOcean China Qomolangma d i r f kl Geographicalfacts地理常识 thelongestriver hasthebiggestpopulation thehighestmountain thebiggestcountry thebiggestdesert thebiggestsaltlake thebiggestocean thebiggestcontinent What sthelongestriverintheworld TheNile Pairwork Whatisthelongestriverintheworld TheNile Whatisthedeepestdesertintheworld TheSahara TheYangtzeRiverisabout kilometerslongandtheYellowRiveris kilometerslong Chinahasthebiggestpopulationintheworld It salotbiggerthanthepopulationoftheUS Chinaisover yearsold IthasamuchlongerhistorythantheUS TheUSisnoteven yearsold ChinaisalmostasbigastheUS anditisthebiggestcountryinAsia Listening 2aListenandnumber 4 2 1 3 2bListenagainandfillintheblanks 6 3005 0005 464300 TheYangtzeRiverisabout kilometerslongandtheYellowRiveris kilometerslong Chinahasthebiggestpopulationintheworld It salotbiggerthanthepopulationoftheUS Chinaisover yearsold IthasamuchlongerhistorythantheUS TheUSisnoteven yearsold ChinaisalmostasbigastheUS anditisthebiggestcount