:Wow,doestourismgrowfast?Prof.C:Yes.In1950,therewereonly25millioninternationaltouristarrivals.Bytheyear2020,therewillbe1.6billion.Jane:Oh,accordingtowhatyousaid,tourismcreatesmanyjobs.Whatarethechallengesoftourismtoday?Prof.C:Manythings,hange,currencyexchangerates,safetyandsoon.Jane:Igetit.Well,couldyoupleasetellmetheearlyhistoryoftraveling?(5min)A.ordingtothepicturesItems〖课堂小结〗(10min)PresentthebasicsentencesontheblackboardProf.C:Thehistoryoftravelingcanbedatedbackto3,000yearsago.AncientGreekslefthometowatchtheOlympicGames.IntheMiddleAges,peopletraveledtovisittheHolyLandtoprayJane:Whendidthemoderntourismbegin?Prof.C:In19century,anizedatrip.ThatmarkedthebeginningofthemoderntourismindustryJane:OhIsee.Thankyousomuch,Prof.CameronProf.C:Mypleasure,Jane.[此文档可自行编辑修改,如有侵权请告知删除,感谢您的支持,我们会努力把内容做得更好]