英语人教版八年级下册unit 7 SectionA 1a--2d.ppt

Unit7 SectionAPeriod1 1a 2d Doyouknowthesenumbers Howtoreadthem 8844 43meters 1 025metersdeep 6 600kilometerslong 6 211 31kilometerslong 3 219kilometerswide Whichisthehighestmountainintheworld Whichisthelongestriverintheworld Doyouknowthis Qomolangma QomolangmarunsalongtheborderbetweenChinaandNepal Itiscoveredwithsnowalltheyearround It s8844 43metershigh thehighestintheworld It s26kilometerslong theSahara TheSaharaisthebiggestdesertintheworld ItislocatedinthenorthernAfrica Itsclimateconditionsareverybadandisoneoftheearth smostunsuitableforbiologicalsurvival theCaspianSea TheCaspianSea 里海 isthebiggestinlandlakeintheworld Themaxdepthis1 025m inthesouthernpart ItliesintheborderbetweenAsiaandEurope theNile TheNileisthelongestriverintheworld It smorethan6 600kilometerslong Itrunsthrough9countries It soneofthelargestriverflowingthroughtheinternationalstatesintheworldandrunsintotheMediterraneanSea 地中海 intheend theYangtzeRiver TheYangtzeRiveristhethirdlongestriverintheworld andthefirstAsianriver It s6211 31kilometerslong TheYangtzeRiverBasin east westwidthof3 219kilometers about966kilometerswidenorth south passingthrough11provinces ItrunsintotheEastSeainShanghaifinally 1a Matchthefactsyouknow 8 844 43metershigh 8 844米高 metershigh long wide 米高 长 宽 英语表示 有多长 宽 高 时 一般将数词和数量单位放在表示长宽高的形容词前作状语 Thewallis1 7meterswide Explanation A HowhighisQomolangma B It s8 844 43metershigh Practice Thebiggestdesertintheworldisabout9 600 000squarekilometersinsize HowbigistheSahara It sabout9 600 000squarekilometersinsize 1b Listenandcompletethesentences 1 Qomolangmais thananyothermountainintheworld 2 TheSaharais desertintheworld 3 TheCaspianSeais ofallthesaltlakes 4 TheNileis riverintheworld higher thebiggest thedeepest thelongest Usetheinformationin1btomakeconversations 1c A Whatisthehighestmountainintheworld B Qomolangma Practiceinpairslikethis A Whatisthe inthe B Practice Whatisthelongestriverintheworld TheNile Whatisthebiggestdesertintheworld TheSahara WhatisthelongestriverinAsia TheYangtzeRiver Makesentenceswiththefollowingadjectivestodescribethings thehighestthelongestthedeepestthebiggest Practice SamplesIliveinthehighestbuildinginthecity Meilihasthelongesthairintheclass ThatswimmingpoolisthedeepestoneI veeverswamin Wehavethebiggestfieldofallthehighschoolsintown 6 3005 0005 464300 Practicereadingthefollowingfournumbers Whichisthebiggestnumber Whichisthesmallestnumber 2a Listenandnumberthefacts 1 4 intheorderyouhearthem TheYangtzeRiverisabout kilometerslongandtheYellowRiveris kilometerslong Chinahasthebiggestpopulationintheworld It salotbiggerthanthepopulationoftheUS 6 3005 0005 464300 4 2 Chinaisover yearsold IthasamuchlongerhistorythantheUS TheUSisnoteven yearsold ChinaisalmostasbigastheUS butitisthebiggestcountryinAsia 1 3 Listenagainandfillintheblanksin2awithnumbersinthebox 2b TheYangtzeRiverisabout kilometerslongandtheYellowRiveris kilometerslong Chinahasthebiggestpopulationintheworld It salotbiggerthanthepopulationoftheUS 6 300 5 464 Chinaisover yearsold IthasamuchlongerhistorythantheUS TheUSisnoteven yearsold ChinaisalmostasbigastheUS butitisthebiggestcountryinAsia 5 000 300 Makeconversationsusingtheinformationin2a 2c A DidyouknowthatChinaisoneoftheoldestcountriesintheworld B Yes Idid It smucholderthanmycountry 温馨提示 Didyouknow 是一般过去时态 问你过去是否知道 Doyouknow 是一般现在时态 问你目前是否知道 或者说 当你真正在提问时 问对方知不知道一件事情 用Doyouknow 当你用疑问语气而真正想告诉对方一个事实 用Didyouknow A DidyouknowthatYangtzeRiveristhelongestriverinChina B Yes Idid It s6 300meterslong A Wow That slong A DidyouknowthatChinahasthebiggestpopulationintheworld B Yes Idid It salotbiggerthanthepopulationoftheUS A Wow That samazing 2d Role playtheconversation Whatistheconversationabout HowlongistheMingGreatWall It saboutatourtotheMingGreatWall It sabout8 850kilomoterslong 中国的长城共有近一万公里 东起河北秦皇岛的山海关 西到嘉峪关 这是明代修筑长城的两个最大关口 北京境内的长城有600余公里 比较著名的有八达岭长城 金山岭长城 司马台长城 慕田峪长城 居庸关长城和箭扣长城等 TheGreatWall 慕田峪长城 Makeadialogue talkingaboutaplaceofinterest Oneactsastheguideandtheotherthetourist Use2dasanexample Pairwork Readthewordsandexpressionsloudly QomolangmatheNiletheCaspianSeatheSaharatheYangtzeRivertheYellowRivertheMingDynastytheMingGreatWall 珠穆朗玛峰尼罗河里海 世界最大的咸水湖 撒哈拉沙漠长江黄河明朝明长城 squaremeterdeepdesertpopulationAsiafeelfreetour n 平方 正方形n 米 公尺adj 深的 纵深的n 沙漠n 人口 人口数量n 亚洲 可以 随便 做某事 n v 旅行 旅游 touristwallamazingancientprotectwideasfarasIknow n 旅行者 观光者n 墙adj 令人大为惊奇的 令人惊喜 或惊叹 的adj 古代的 古老的v 保护 防护adj 宽的 宽阔的就我所知 Languagepoints 1 Chinahasthebiggestpopulationintheworld populationn 人口 人口数量Thepopulationofthiscityissixmillion 这个城市的人口是600万 ThepopulationofChinaismuchlargerthanthatoftheUSA 中国的人口比美国的人口多很多 population作主语的时候 谓语动词通常用单数形式 当主语是表示 人口的百分之几 几分之几 时 谓语动词用复数形式 询问人口数量时要用 What sthepopulationof 提问 而不用howmany或howmuch等提问 表示人口 多 要用large或big 表示人口 少 要用small 1 ThepopulationofShanghaiis thanthatofGuiyang A smallerB largerC lessD large2 isthepopulationofthetown Over20 000 Andathirdofthepopulation workersofthecarfactory A What areB Howmany areC What isD Howmany is B A 3 Whichcityhas population Beijing GuiyangorXingyi Xingyi ofcourse A thelargestB thesmallestC themostD theleast4 thepopulationofChina 1 3billion EveryoneknowsChinahasthe populationintheworld A Whatare mostB Whatis largestC Howmanyare mostD Howmanyare largest B B 2 Feelfreetoaskmeanythingontoday sGreatWalltour feelfree是英语口语中一个常用表达 feelfreetodosth 让你无需拘束 只管按照自己的意愿去做某事 A CanIuseyourbathroom 我可以用一下你的卫生间吗 B Yes feelfree 可以 请随意 Iamnothungry Feelfreetoeatmyapple 我不饿 你想吃我的苹果就吃吧 Feelfreetocontactmeifyoustillneedanyhelp 如果还需要帮忙 尽管联系我 asfarasIknow是一个固定的表达方式 还可以说sofarasIknow 意思是 据我所知 3 AsfarasIknow therearen