Unit7What’sthehighestmountainintheworld
Chinaisoneoftheoldestcountries
It’sover________yearsold
Infact,it’soneofthefourancientcountriesintheworld
5,000AsChinese,howmuchdoyouknowaboutourmotherland
Chinahasthelargestpopulationontheearth
Therearesomanytouristsvisiting______________
theGreatWallthebiggestcountryinAsiaWealsohavesomefamousrivers
TheYangtzeRiveristhelongestinAsia
Qomolangmaisthehighestmoutainintheworld
What’sthis
It’sdesert
What’sitsname
Saharadesert
What’sthis
It’salake
What’sitsname
TheCaspianSeaGuide:Feelfreetoaskmeanythingontoday’sGreatWalltour
Tourist1:Howlongisthewall
Guide:Ah,themostpopularquestion
Ifwe’reonlytalkingaboutthepartsfromtheMingDynasty,it’sabout8,850kilometerslong
Thismakesitthelongestwallintheworld
Tourist2:Wow,that’samazing
Whydidtheancientemperorsbuildthewal