八年级（下）UNIT 7 Section A 1a-2d.ppt

Unit7 Unit7What sthehighestmountainintheworld SectionA1a 2d No 6MiddleSchoolLiuHuibing TuojiangRiver TuojiangRiverisinthemiddleofSichuanProvince It sabout712kilometerslong Itflowsthrough 贯穿 5citiesandrunsintoChangjiangRiverinLuzhou 1kilometer 1 000meters theYellowRiver theYangtzeRiver 5 465kilometers 6 211 31kilometers 5 465 000meters 6 211 310meters Practice CanyoureadthefollowingnumbersinEnglish 261 0256 6718 844 439 600 000 twenty six onethousandandtwenty five sixthousandsixhundredandseventy one eightthousandeighthundredandforty fourpointfourthree ninemillionsixhundredthousand TheYangtzeRiveristhelongestriverinChina butit sthethirdlongestriverintheworld It s6 211 31kilometerslong theYangtzeRiver Qomolangma珠穆朗玛峰 theNile尼罗河 Learnaboutsomenaturalsites 自然景观 theCaspianSea里海 theSahara撒哈拉沙漠 desertn 沙漠 saltlake咸湖 Watchavideoabouttheseplaces A Whatisthehighestmountainintheworld Talkaboutthesepictures thelongestriverthebiggestdesertthedeepestsaltlake B Qomolangma theSahara theCaspianSea theNile Let slearnmoreabouttheseplaces QomolangmaisbetweenChinaandNepal 尼泊尔 It s8 844 43metershigh It sthehighestmountainintheworld It s26kilometerslong TheNileisthelongestriverintheworld It smorethan6 671kilometerslong It soneofthelargestriversintheworld TheCaspianSeaisthedeepestsaltlakeintheworld It s1 025metersdeep TheSaharaisthebiggestdesertintheworld It sabout9 600 000square 平方 kilometersbig 1aMatchthefactsyouknow 1bListenandcompletethesentences 1 Qomolangmais thananyothermountainintheworld 2 TheSaharais desertintheworld 3 TheCaspianSeais ofallthesaltlakes 4 TheNileis riverintheworld higher thebiggest thedeepest thelongest 1cUsetheinformationin1btomakeconversations Whatisthehighestmountainintheworld Qomolangma Pairwork A Whatisthehighestmountainintheworld B It sQomolangma A HowhighisQomolangma B It s8 844 43metershigh PlacesFeatureSizeTheNilelong6 671kmsTheCaspianSeadeep1 025metersTheSaharabig9 600 000squarekms Practice 2aListenandnumberthefacts 1 4 intheorderyouhearthem TheYangtzeRiverisabout kilometerslongandtheYellowRiveris kilometerslong Chinahasthebiggestpopulationintheworld It salotbiggerthanthepopulationoftheUS Chinaisover yearsold IthasamuchlongerhistorythantheUS TheUSisnoteven yearsold ChinaisalmostasbigastheUS anditisthebiggestcountryinAsia 4 2 1 3 2bListenagainandfillintheblankswiththenumbersinthebox 6 3005 0005 464300 TheYangtzeRiverisabout kilometerslongandtheYellowRiveris kilometerslong Chinahasthebiggestpopulationintheworld It salotbiggerthanthepopulationoftheUS Chinaisover yearsold IthasamuchlongerhistorythantheUS TheUSisnoteven yearsold ChinaisalmostasbigastheUS anditisthebiggestcountryinAsia 4 2 1 3 6 300 5 464 5 000 300 2cMakeconversationsusingtheinformationin2a A DidyouknowthatChinaisoneoftheoldestcountriesintheworld B Yes Idid It smucholderthananycountry Practice A DidyouknowthatYangtzeRiveristhelongestriverinChina B Yes Idid It s6 300meterslong B Wow That slong TheGreatWall Role playtheconversation 我们已经学习过形容词和副词的比较级和最高级的构成及基本用法 下面我们进一步学习与其相关的其他知识点 形容词和副词比较级的修饰语1 比较级前可加much alot abit alittle any no some even still等词修饰 Revision e g Youmustworkalotharder Youlookmuchhappierthanyoudidyesterday Thisbookisevenmoreusefulthanthatone 2 比较级前还可加其他表示数量的词 e g Mysisteristenyearsyoungerthanme Wegotheretwodaysearlierthantheothers 形容词和副词最高级的其他用法1 形容词最高级可被second third等序数词修饰 e g Thebuildingisthesecondtallestinthiscity 2 形容词最高级常用于句型 oneof the 形容词最高级 可数名词的复数式 意为 最 之一 e g LiuLiisoneofthemostpopulargirlsinourclass 3 形容词和副词的比较级和最高级可以互相转换 e g Janeistallerthananyothergirl theothergirlsintheclub Janeisthetallestgirlintheclub TheYangtzeRiverisalot thantheYellowRiver TheNileis ofall TheYangtzeRiveris third riverintheworld longer thelongest Completethesentencesusingtheinformationintheforms Exercise the longest MountTaiisoneof mountainsinShandongProvince MountHuangisalittle thanMountTai Qomolangmais mountainofall Qomolangmais thananyo