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1、UnitTwoCrossingLimitsJuly12,I…TrytotranslatethefollowingsentencesintoChinese,recitethemandthenpayattentiontotheunderlinedexpressions.1.Topeopleofearlycivilization,theworldmapisagreatpuzzle.2.ItiswellknownthatAfricahascontactswithIndiaandtheRedSeacivilizationfromtheearliesttimes.TheArabi
2、ccontactstotheAfricancoastledtothenextmeetingbetweenblackpeopleandaChinese.ThecontactsbetweenChinaandAfricaoverthecenturiesledtotheawarenessofeachother’sexistence.3.SilkfromChinafounditswayoverlandalongtheSilkRoadtoIndia,theMiddleEastandRome,inexchangeforspicesandglass.4.Ceylon,withitsc
3、entralposition,wastheplacewhereChinesemerchantsmetwithArabmerchantsandheardaboutthewesternmostlands5.Intheeleventhcentury,theAfricansmadeseveralvoyagestothecourtoftheSongDynasty.6.ItwasamajordevelopmentthattheAfricanswerereachingouttoChina.7.Bythebeginningofthefifteenthcenturythetimewas
4、ripeforagrandmeeting.Bythemiddleofthe19thefarthestcornersoftheearthhadalreadybeenexplored.8.TheMinggovernmenthadalargenavyandthewilltouseit.9.Intheyearsbetween14005and1433,seventreasurefleetssailedwestwardsonvoyagesoftradeandexploration.10.UnderthecommandofZhengHe,thefleetssetsailfromth
5、eSouthChinaSeaacrosstheIndianOceantothemouthoftheRedSea,andthentraveledfurthersouth,discoveringtheeasterncoastofAfrica.1.ThewonderfulgiftandthecontactwiththeblackcourtsoexcitedChina’scuriosityaboutAfricathatZhengHesentamessagetothekingandtootherAfricanstates,invitingthemtosendambassador
6、sandopenembassiesinthenewMingcapital,Beijing.2.Theexchangeofgoodshadasymbolicmeaningfarmoreimportantthanthevalueofthegoodsthemselves.3.Allthatwaslefttobeconqueredwasthe“thirdpole”,thehighestmountainonearth,MountQomolangma.4.Apartfromthecold,thinairandlowoxygenlevelscancausemountainsickn
7、esswhichcankill.5.FromthefirstBritishQomolangmaexpeditionin1921,Sherpastrength,skill,honesty,anddedicationhavemadethemidealcompanionsonthemountain.6.Theyhadnoideawhattheywereupagainst.7.ThelocalTibetansandSherpaslaughedatthestrangebottlescontainingwhattheyreferredtoas“Englishai
