Unit7What’sthehighestmountainintheworld?ObjectivesAttheendofthelesson,studentswillbeableto1.Pornounceandusecorrectlythenewwordssuchassquare,meter,deep,desert,population,Asia.2.Mastertheuseoflargenumbers.E.g.TheYangtzeRiverisabout6,300kilometerslongandtheYellowRiveris5,464kilometerslong.3.Descrbleobjectsbyusingtheformsofcomparativesandsuperlatives.Newwordssquare

n.平方meter

n.米

[skwe?]

[?mi:t?(r)]deepadj.深的desertn.沙漠[di:p]['dez?t]Asia

n.亞洲populationn.人口[p?pj?'le??(?)n]['e???]QuickeyesLet'senjoythejourneyaroundtheworld！Warming-upNingxiaQomolangma

--thehighestmountain珠穆朗瑪峰--世界上最高的山峰CaspianSea--thedeepest

lake里海--世界最深的湖theNile--thelongestriver尼羅河--世界最長河流theSahara--thebiggestdesert撒哈拉沙漠--世界最大沙漠highestlongestbiggestdeepestmountain山river河desert沙漠

lake淡水湖Wheredidwegojustnow?Wewenttotheintheworld.Whatis

thehighestmountain

thelongestriver

thebiggestdesert

thedeepestlake

Theworld?It’s_________.1bListenandcompletethesentences.1.Qomolangmais______thananyothermountainintheworld.2.TheSaharais____________desertintheworld.3.TheCaspianSeais____________ofallthesaltlakes.4.TheNileis_________riverintheworld.higherthebiggestthedeepestthelongest35

231,025

30,000

6,6718,844.43

9,600,000

Howdoyoureadthesenumbers?thirty-fivetwenty-threethirtythousandonethousandandtwenty-fivesixthousandsixhundredandseventy-one

eightthousandeighthundredandforty-four

pointfourthreeninemillionsixhundredthousand=ninepointsixmillionisthelargestnumber.isthesmallestnumber.6,3005,0005,464300總結：

xxxxx,000,000,000thousandmillionbillion7928500434600987654321Howdoyoureadthesenumbers?

㎡4m

squaremetersinsize=1616

[skwe?]

[?mi:t?(r)]4mIfyouareaguide(導游)，pleaseintroduce(介紹)a

famousplacetothetourists(游客).__________

isthelongestriverinChina.It’slongerthananyotherriverinChina.It’sabout6300meterslong.A.TheAmazonRiverB.TheYellowRiverC.TheNileD.TheYangtzeRiver['j??z?]China

theUSDoyouknowanythingaboutthetwocountries?________hasthebiggestpopulationintheworld.________isthebiggestcountryinAsia.________hasamuchlongerhistory.China

2aListenandnumberthefacts(1-4)intheorderyouhearthem.___TheYangtzeRiverisabout____kilometerslongandtheYellowRiveris___kilometerslong.___Chinahasthebiggest

populationintheworld.It’salotbiggerthanthepopulationoftheUS.___Chinaisover___yearsold.IthasamuchlongerhistorythantheUS.TheUSisnoteven___yearsold.___ChinaisalmostasbigastheUS,anditisthebiggestcountryinAsia.42132bListenagainandfillintheblankswiththenumbersinthebox.6,3005,0005,464300___TheYangtzeRiverisabout______kilometerslongandtheYellowRiveris_______kilometerslong.___Chinahasthebiggestpopulationintheworld.It’salotbiggerthanthepopulationoftheUS.___Chinaisover_______yearsold.IthasamuchlongerhistorythantheUS.TheUSisnoteven______yearsold.___ChinaisalmostasbigastheUS,anditisthebiggestcountryinAsia.42136,3005,4645,000300Whatisthe…est___intheworld/China…?

A:Whatisthehighest/longest/deepest/

heworld?

B:...____.

It'shigher/longer/…thananyother___intheworld.Guide:

Feelfreetoaskmeanythingontoday'sGreatWalltour.Tourist1:Howlongisthewall?Guide:Ah,themostpopularquestion!Ifwe'reonlytalkingaboutthepartsfromtheMingDynasty,it’sabout8，850kilometerslong.Thismakesitthelongestwallintheworld.Tourist2:Wow,that’samazing！Whydidtheancientemperorsbuildthewall?Guide:Themainreasonwastoprotecttheirpartofthecountry.Asyoucansee?

,it’squitetallandwide.Asfaras?

Iknow,therearenootherman-madeobjectsasbigasthis.Tourist3:IsBadalingpartoftheMingGreatWall?Guide:Yes,it'sthemostfamouspart.

????populationn.

人口；人口數量

問人口數量的句型：What’sthepopulationof...?eg：What’sthepopulationoftheworldnow?population和people的區別:前者通常用what來提問，后者用howmany來提問形容人口多少用big，large或small。eg：Thecityhasabig/large/smallpopulation.population作主語，表達一個整體概念時，謂語動詞用單數，

當其前有分數或百分數修飾時，謂語動詞可用單數或復數。eg：ThepopulationofNigeriaismorethan100million.(強調整體性)Threequartersofthepopulationinthecityis/arefromotherpartsofthecountry.*feelfreeto...表示很隨意地去做某事。feelfree是英語口語中一個常用表達。eg：Pleasefeelfreetoaskquestions.

*protect...from/against...保護……免受/遭……eg：Peopl