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1、UnitSevenWhat'sthehighestmountainintheworld?SectionA1a-1cPKPlayawordgameWhoisquickerandlouder?Whohasthebesteyesight视力？highestlongestheaviestdeepest(深的）oldestmorebeautifulbiggestlargestsmallestthemostcarefulbetterearlierdeepest(深的）highestoldestlongestsmallestlargestbigges
2、theaviestearlierbettermorebeautifulthemostcarefulReadtogetherLiliismoreoutgoingthanLucy,LucyismorecarefulthanLili.LiliandLucyaretwinsisters,they’re14yearsoldnow.LiliLucyIsay:Cathyisthetallestofall,Sheisthethinnestofall.CathyYousay:Talkabouttheiragesandheights(身高）withcomp
3、arative(比较级）andsuperlative(最高级）TiantianKimiShitouCindyAngela11/12,20079/15,20092/26,20074/15200810/132009eighteighteenonehundredandeightyNow,let'sreadsomenumbers!onethousandfivehundredandsixty-eighttwothousandandeightQuestiontime:36,500,435,478↓↓↓billion十亿）million百万thous
4、and千千位及千位以上数字的表达：以三位数为一个单位，每三位数用“，”隔开Withcommas,they’reeasytoread.100,000onehundredthousand462,680fourhundredandsixty-twothousandsixhundredandeighty1,000,000onemillion2,222,800twomilliontwohundredandtwenty-twothousandeighthundred2.16zeropointone0.1twopointonesix52.358fif
5、y-twopointthreefiveeightDoyouknowthesenumbers?Howtoreadthem?8844.43meters1,025metersdeep6,600kilometerslong6,211.31kilometerslong3,219kilometerswideLet’stry!TheSaharaisthebiggestdesert沙漠intheworld.It’sabout9,600,000squarekilometers平方公里insize.ItisnearlyaslargeasChinainsiz
6、e.Itislocatedin坐落在thenorthernAfrica非洲北部,climate[klaɪmət]conditions气候条件areverybad.TheSaharaDesert[sə'hɑ:rə]撒哈拉沙漠square平方；广场eg:Tian’anMenSquareDoyouknowsomethingabouttheSaharaDesert?TheCaspianSea[kæspiən]里海TheCaspianSeaisthedeepestlakeofallthesaltlakes所有的咸水湖中intheworld.It’
7、s1,025metersdeep深.Itliesin位于theborder边界betweenAsia亚洲andEurope欧洲.DoyouknowsomethingabouttheCaspianSea?TheNileisthelongestriverintheworld.It’sabout6,671kilometerslong.ItisinAfrica非洲andrunsinto注入theMediterranean[meditəreinjən]Sea(地中海)intheend.TheNile[naɪl]尼罗河Whatdoyouknowab
8、outtheNileRiver?Qomolangma[tʃəuməulɑ:ŋmə]珠穆朗玛峰Qomolangmarunsalongtheborder边界betweenChinaandNepal尼泊尔.Iti
