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1、Whatdoyouthinkofmaths?amazingadj.令人惊叹的PresentationHowtosaythesenumbers?1001,00010,000100,0001,000,00010,000,000100,000,0001,000,000,00010,000,000,000100,000,000,000thousandmillionbillionWithcommas,they’reeasytoread.onethousandfivehundredandsixty-eightsixteenthousandonehundredsixty-s
2、eventhousandeighthundredandninety462,680fourhundredandsixty-twothousandsixhundredandeighty2,000,000twomillion2,222,800twomilliontwohundredandtwenty-twothousandeighthundredninemillionsixhundredthousandonethousandandtwentyfivesixthousandsixhundredandseventyoneeightthousandeighthundred
3、andfortyfourpointfortythree9,600,0001,0256,6718,844.43UnitSevenLongquanSchoolQiuxinghuaSectionA1a-1cWhat'sthehighestmountainintheworld?Doyouknowtheseplaces?It’s8844.43metershighQomolangmaHowhighisQomolangma?eightthousandeighthundredandforty-fourpointfourthree.TheSaharaHowbigisthesah
4、ara?.It’sabout9,600,000squarekilometersinsize.NinemillionsixhundredthousandIt’s6671kilometerslong.TheNileHowlongistheNile?TheCaspianSeaHowdeepistheCaspiansea?It’s1025metersdeep.1aMatchthefactsyouknow.Practice1ainpairslikethis:A:Howbigisthesahara?B:it’sabout9,600.000squaremeterskilom
5、etersinsize.PracticeA:HowhighisQomolangma?B:It’s8,844.43metershigh.A:Howdeep/big/longis…?B:It’s…meters/kilometers….1bListenandcompletethesentences.1.Qomolangmais________thananyothermountainintheworld.2.TheSaharais___________desertintheworld.3.TheCaspianSeais__________ofallthesaltlak
6、es.4.TheNileis___________riverintheworld.higherthebiggestthedeepestthelongest1cUsetheinformationin1btomakeconversations.Whatisthehighestmountainintheworld?(Itis)Qomolangma.A:Whatisthe…inthe…?B:…Whatisthebiggestdesertintheworld?theSaharaDesertWhatisthedeepestsaltlakeintheworld?theCas
7、pianSeaWhatisthelongestriverintheworld?theNileRiverWhatisthelongestriverinChina?theYangtzeRiverWhatisthe…intheworld?….Fillintheblanks.1.这张桌子两米长，一米宽。and___________________2.这座山有1500米高。3.这栋楼120米高。4.这本字典有五厘米厚。5.这个湖有多深？125米深。Thetableis__________________Themountainis_________________Theb
8、uildingis__________
