Unit2CrossinglimitsStep1Warmingup1.LookatthepicturesonP.10.Doyouknowwhatmadethesepeoplefamous?ZhengHeisfamousforhavingmadeseveralvoyagestotheWest,reachingasfarasAfrica.JamesCookisfamousforhavingmadethreegreatvoyagesaroundtheworld,andmappingcoastsandsearoutes.ChristopherColumbuswhodiscoveredAmericain1492.AbelTasmanwasaDutchmanwhodiscoveredNewZealand.2.Pleasetellmehowmanycontinentsthereareintheworldandwhataretheirnames.Sevencontinents:NorthAmerica,SouthAmerica,Africa,Europe,Asia,OceaniaandAntartica.3.Whatwerethedangersandchallengesexplorersinthepastfacedwhilediscoveringandexploringtheworld’scontinents?Dangerstowhichexplorerswereexposedwere:Gettinglosteitherinthejungleoratsea;Beingattackedbynativepeople;Beingattackedbywildanimals;Dyinginastorm.Challengeswhichexplorersfaced:Mapswereperhapsnotveryaccurate;Communicationwaslostorimportantinformationcouldnotbegotontime;Forinlandexplorationtransportwasslow.4.Whatwordsandexpressionswillyouneedtotalkaboutdiscoveryandscienceexploration?CategoryExamplesofwordsandphrasesTransportnavigation,compass,sail,ship,captain,helicopter,camels,elephant,horses,jeep,porters,expeditionCommunicationjournals,maps,magazines,Internet,telephones,e-mail,smokesihnals,lettersScienceandgeographyvegetation,wildlife,(mineral)resources,ore,population,etcpolar,IndianOcean,Pacific,Atlantic,Caribbean,etcPositioncentral,westernmost,southernmost,remote,altitude,latitudeProductsoil,rubber,spices,silk,fruit,tea,mushrooms,coffee,chocolate(cocoa),cotton,turkey.maize,etcStep2Speaking用心爱心专心115号编辑Todealwithsomewords,phrasesorsentencesusedinthetalk（先用汉语解释一下即可，后面具体研究）takepossessionofinthenameofmassesofberichindoresearchonastatekeyprojectoriginsdisturblosethelivesofmanypeople/risktheirlivesalternativesavailableequip…withStep3Pre-readingandpost-reading1.ScanthetextandtellmetheanswertothesecondquestiononP.12Thetraderoutesoverlandbecametoodangerousbecauseofwarandrobbers.Tradebyseaalsoallowedmerchantstotakemoregoods.2.Readthewholepassagecarefullyandthendothefollowingmultiplechoicequestions1.Whowere（was）theearliestexplorer（s）oftheWesternOcean？A.MarcoPolo.B.ChristopherColumbus.C.Europeanexplorers.D.Bravemerchants.2.ThroughtheSilkRoad,Chinagotfromothercountries.A.spicesandglassB.silkC.weaponsD.milk3.AnAfricankinggaverhinoceroshornstoChinainorderto.A.makemoneyB.stopthewarC.showhisfriendshipD.awardtheAmbassador答案：C4.Whichofthefollowingbecametheworld’stradingcenteroverafewcenturiesafterHanDynasty?A.Ceylon.B.India.C.Swanhilikingdoms.D.Egypt.5.InDuHuan’sbook“RecordofMyTravels”youcanlearnabout.A.MarcoPoloB.manyforeigncountriesC.ChristopherColumbusD.waystomakesilk6.Whodoes“TheChineseColumbus”referto?A.TheMingemperor.B.DuHuan.C.TheChineseambassador.D.ZhengHe.用心爱心专心115号编辑7.Thetextismainlyabout.A.howtheSilkRoadwasformedB.howChinadevelopedtradingrelationswithArabiccountriesC.ZhengHe’sexpeditionsacrosstheIndianOceanD.thehistoryofChina’sopeningtotheoutsideworld8.ThesmallbronzestatueofalionfoundinShangamostprobablycamefrom.A.ChinaB.RomeC.GreeceD.London9.“Intheeast,Chinaprosperedunderanewdynasty.”Theunderlinedpartrefersto.A.theHanDynastyB.theSongDynastyC.theQinDynastyD.theMingDynasty10.Whichofthefollowingcanbeinferredfromthetext?A.Columbus’explorationwasstoppedforeconomicreasons.B.NoaccuratemapsofthecountriesaroundtheIndianOceanexistedbef...
