A:Lool,TheGreatWall

　　B:It'sreallymagnificent!

　　A:Thisisaman-madewonderanditisthoughtofasoneofthewondersintheworld.Imaginetheastronautsinspacesfoundthatitistheonlyman-madethingthatcanbeseenuptherebesidesthepyramidsinEgypt.

　　B:Look,somanypeoplearehere.Iamsurethattherearethoudsandsofpeoplevisitingiteveryday.

　　A:Yes,therearemorethantenofthoudsandvisitorsclimbingTheGreatWalleveryday.

　　B:What'sthelengthogTheGreatWall?

　　A:RheGreatWallmendersformEasttoWestforabout6000kilometersor12000li.

　　B:Yes,theconstructionofTheGreatWallfirstbeganduringtheWarringStatesperiodabout2500yearsago.Somesmallkingdomsbuilthugewallstoprotecttheirterritories.WhenQinShihuangunifiedChinain221Bc,hedecidedtohavethevarioussectionsofthewallslinkedupandalsoextended.Fromthenon,wegotTheGreatWall.

　　A:Ah,Isee.TheGreatWallhasahistoryofmorethantwothousandyears.

　　嫌长自己再删除些.

　　B:Let'sgonow.MyfriendstoldmethatthereisafamousChinesesaying"Theonewhohasn'tbeentoTheGreatWallisnotatrueman."Wewillbereallytruemenwhenwegettothetop.