2023学年完整公开课版7What'sthehighestmountaininth

SectionA(1a-1c)Unit7What'sthehighestmountainintheworld?Whichisthehighestmountainintheworld?Whichisthelongestriverintheworld?WhichisthelongestriverinAsia?…LeadinDoyouknow?[ˈeɪʃə][‘tʃəuməu’lɑ:ŋmə]

Qomolangma珠穆朗玛峰ThehighestmountainintheworldTheSahara撒哈拉沙漠

[sə'hɑ:rə]ThebiggestdesertintheworldtheCaspianSea里海['kæspɪən]ThedeepestsaltlakeintheworldtheNile尼罗河[naɪl]Thelongestriverintheworld['æməzən]

TheAmazon亚马逊河

ThesecondlongestriverintheworldTheYangtzeRiver长江['jæŋtsi]

ThelongestriverinAsiaHowhighis

Qomolangma?

Itisabout8,844.43metershigh.one1two2three3four4five5

eleven11twelve12thirteen13fourteen14

six6seven7eight8nine9ten10fifteen15sixteen16seventeen17eighteen18nineteen19Howtoreadnumbers1-19

20—90等十位数twenty20thirty30forty40fifty50sixty60seventy70eighty80ninety90

twenty-one21twenty-two22………………其它的十位数照此类推，如：thirty-one31forty-two42seventy-five75ninety-six96百、千、万

百hundred

100200····千thousand

10002000英语里没有“万”这一单位，万也用thousand表示。如：10,000tenthousand

20,000twentythousandonehundredtwohundredonethousandtwo

thousand十万、百万十万的说法是：

100,000a(one)hundredthousand200,000twohundredthousandmillion百万

1,000,0002,000,0008,000,000

a(one)million

twomillion

eightmillion['mɪljən]例如：

2,648twothousand,six

hundredforty-eight

16,250,064sixteenmillion,twohundredandfifty

thousand,sixty-fourand58639,02718,957,4233,940Exercisefivehundredandeighty-sixthirty-ninethousandandtwenty-seveneighteenmillion,ninehundredandfifty-seventhousand,fourhundredandtwenty-threethreethousand,ninehundredandforty

eightthousandeighthundredandforty-fourpointfourthree9,600,000

ninemillionandsixhundredthousand

6,879

sixthousandeighthundredandseventy-nine

8,844.43

1aMatchthefactsyouknow.Qomolangmaabout9,600,000squarekilometersinsizeTheSahara1,025metersdeepTheCaspianSea6,671kilometerslongTheNile8,844.43metershigh[ˈmi:tə(r)]n.公尺；米[skweə]平方1bListenandcompletethesentences.1.Qomolangmais_________thananyothermountainintheworld.2.TheSaharais__________desertintheworld.3.TheCaspianSeais___________ofallthesaltlakes.4.TheNileis_________riverintheworld.higherthebiggestthedeepestthelongest[dezət]沙漠咸水湖

Readafterthetapeandunderlinetherelativesentences.Post-listeningTurntopage103A:Whatisthehighest

mountainintheworld?B:Qomolangma.A:Howhighisit?B:It’s…meters

high.1cPairworkUsetheinformationin1btomakeconversations.Whatisthelongestriverintheworld?TheNile.Howlongisit?It's6,671kilometerslong.Whatisthebiggestdesertintheworld?TheSahara.Howbigisit?It'sabout9,600,000squarekilometersinsize.Whatisthedeepestsaltlakeintheworld?TheCaspianSea.Howdeepisit?It's1,025