英语人教版八年级下册Unit 7 Section A (1a-2d).ppt

人教版八年级英语（下）Unit7Whatsthehighestmountainintheworld?SectionA1a-2d安徽省临泉县第三中学张洁,Whatdoyouknowaboutthisnumber?,ItistheheightofQomolangma.,ariver,adesert,asaltlake,FamousPlaces,1.desert沙漠2.squaremeter平方米3.insize面积4.high高的5.deep深的6.wide宽的7.population人口8.MingDynasty明朝9.ancient古代的10.object东西；物体11.amazing神奇的,Newwordsandphrases,Goodjob!,LookandSay,PlacesFacts,1aMatchthefactsyouknow.,464671844,fourhundredandsixty-foursixhundredandseventy-oneeighthundredandforty-four,Readlargenumbers,1,0001,025600,000,onethousandonethousandandtwenty-fivesixhundredthousan,Readlargenumbers,1,000,0009,600,000,onemillionninemillionsixhundredthousand,Readlargenumbers,169,800,450millionthousand,onehundredandsixty-ninemillioneighthundredthousandfourhundredandfifty,Readlargenumbers,(Ninemillionsixhundredthousand),(onethousandandtwenty-five),(sixthousandsixhundredandseventy-one),Readlargenumbers,0.13.144.43,zeropointonethreepointonefourfourpointfourthree,point,(eightthousandeighthundredandforty-fourpointfourthree),Readsmallnumbers,insize,long,high,DescribeFacts,1.Howmanyplacescanyouhearinthedialogue?2.Whatarethey?,Five,TheyareQomolangma,theSahara,theCaspianSea,theNile,theAmazon.,1bListening,Qomolangmais_thananyothermountainintheworld.TheSaharais_desertintheworld.TheCaspianSeais_ofallthesaltlakes.TheNileisriverintheworld.Amazonis_riverintheworld.,higher,thebiggest,thedeepest,thelongest,thehighestmountain,thesecondlongest,1bListening,_TheYangtzRiverisabout_kilometerslongandtheYellowRiveris_kilometerslong._Chinahasthebiggestpopulationintheworld._Chinaisover_yearsold.TheUSisnoteven_yearsold._ChinaisalmostasbigastheUS.,1,2,3,4,2aListenandnumberthefactsintheorderyouhearthem.,_TheYangtzRiverisabout_kilometerslongandtheYellowRiveris_kilometerslong._Chinahasthebiggestpopulationintheworld._Chinaisover_yearsold.TheUSisnoteven_yearsold._ChinaisalmostasbigastheUS.,1,5,000,300,2,3,4,6,300,5,464,2bListenandfillinthenumbers,mucholder,alotbigger,thesamesizeas,oneof,countries,History,Population,Area,2aRetellthefactsandmakecomparions.,1.ItsalotbiggerthanthepopulationoftheUS.,修饰比较级，表示差别程度。,ChinaismucholderthantheUS.Itscoldtoday,anditllbeevencoldertomorrow.TomisalittletallerthanMike.,Newwaystocompare,2.-er+thananyother+单数n.=the-est+单数n.Qomolangmaishigherthananyothermountainintheworld.=Qomolangmaisthehighestmountainintheworld.,TheSaharaisbiggerthananyotherdesertintheworld.=TheSaharaisthebiggestdesertintheworld.,Newwaystocompare,3.TheAmazonisthesecondlongestriverintheworld.the+序数词+-est+单数n.在(范围)，第几大/长/.,Chinaisthethirdbiggestcountryintheworld.,Newwaystocompare,4.Chinaisoneoftheoldestcountriesintheworld.,oneof+最高级+复数最之一,Mountainclimbingisoneofthemostdangeroussports.,Libraryisoneofthemostpopularplacesforstudentsatschool.,Newwaystocompare,1.AstructuretodescribethefactsS+be+number+unit+adj.2.Largeandsmallnumbers,Talkaboutgeographyandnature,Makethreesentences:2factsand1comparison,AmerciaVS.Canada,Q:Whataretheytalkingabout?A:TheyaretalkingaboutatourtotheMingGreatWall.,2dRole-play,WhatfactscanyouknowabouttheMingGreatWallfromtheguidessaying?Itis8,850kilometerslong.Itsthelongestwallintheworld.Theancientemperorsbuiltittoprotecttheirpartofthecountry.Therearenoman-madeobjectsasbigasthis.,2dRole-play,InformationaboutJiNan,Introduceacity,Dearfriends,WelcometoJiNan.JiNanisnicecity.JiNanisnotverybig.Itisaboutinsize.Anditis.inShanDong.ThepopulationinJiNanisItsthanBeijing.TherearemanyfamousplacesofinterestinJiNan.OneofplacesisDaMingLake.Itsaboutinsize.AnotherfamousplaceisQianFoHill.ItwasbuiltinDynastyanditisabouthigh.DiaoTuSpring