《Unit 3 Reading and Thinking》第1课时教学课件【高中英语人教版】

Unit3

Sea

ExplorationReadingandthinkingPeriod1人教版高中英语选择性必修第四册WarmingupWhatdoyouthinkwhenyouseethesephotos?harmony,invader,livingunderthesea,beautifuldreams…Warmingup1.Whatdoyouknowaboutseaexploration?2.Whatdoyouwanttoknowaboutseaexploration?Haveafreetalk.Pre-readingDoyouknowanystoriesaboutseavoyages?Shareyourstorywithapartner.ChristopherColumbuswasanItalianexplorerwhosejourneyskickedoffcenturiesofexplorationandexploitationontheAmericancontinents.Pre-readingFerdinandMagellanPortuguese

navigator

andexplorerwhosailedaround

SouthAmerica,discoveringthe

StraitofMagellan,andacrossthePacific.Pre-readingMarcoPolowasaVenetianmerchant,explorer,andwriterwhotravelledthroughAsiaalongtheSilkRoadbetween1271and1295.HistravelsarerecordedinTheTravelsofMarcoPolo,abookthatdescribedtoEuropeansthethenmysteriouscultureandinnerworkingsoftheEasternworld.Pre-readingZhengHewasa

ChineseadmiralandexplorerwholedseveralvoyagesaroundtheIndianOcean.ThefirstvoyagestartedinYonglethreeyears(1405),andthelastvoyageendedinXuandeeightyears(1433),totalingseventimes.

ZhengHe’svoyagetothewestisthelargestandlongestsailingvoyageinChinainancienttimes.While-readingLookatthetitle,skimthetextanddecidewhattypeofessayitis?Atitleusuallycoversthemainpointofthesubjectorkeywordsoftheessay.Itsharesthethemeoftheessayandtellsthereaderwhattoexpect.Itisanexpositoryessay.While-readingAnexpositoryessaynormallyhasthepurposeofexplainingorgivinginformationaboutsomething.Whileadescriptiveessaynormallydescribessomethingconcrete,anexpositoryessayusuallytellsinformationaboutsomethingabstract.Forexample,anexpositoryessaywilltalkaboutthevalueofsubwayssystems,whileadescriptiveessaymaytalkaboutsubwaytrains.While-readingReadthetextagain.Writedownthemainideaofeachparagraph.ParagraphMainidea123TravelfromeasttowestbeganlongbeforeColumbus.Inancienttimes,traveleasttowestwasontheSilkRoad.ZhengHe’sseavoyagesbuiltrelationswithothercountries.While-readingParagraphMainidea456Chinaisalsojoiningwithothercountriesonotherimportantprojects.Chinawillcontinuetoexploretheseaandenhancerelationshipswithothercountries.The21stCenturyMaritimeSilkRoadhasencouragedcooperationandstrengthenedthebondsbetweenChinaandtherestoftheworld.While-readingScanthetextandfillinthetablewiththecorrectnames.NameDescriptionThenameofthetraderoutebetweenChinaandtheWestItskingssentgiftssuchasgiraffestoChinaAnareacurrentlybeingexploredforscientificreasonsAdestinationofsilkandamajorEuropeancapitalTheSilkRoadAfricanroyalfamiliesTheArcticRomeWhile-reading

NameDescriptionThemoderncountrynameforCeylonThehistoricalperiodwhenChinaexpandedmaritimeexplorationtootherregionsTheauthorofRecordofMyTravelsThecommanderofthesevenfleetsThepersonwhowrotestoriesthatinspiredEuropeanexplorersSriLankaTheMingDynastyDuHuanZhengHeMarcoPoloPost-readingChoosethebestanswer.1.WhatinspiredEuropeanexplorerstosearchforsearoutesfromwesttoeast?A.Tradeandcuriosity.

B.ThetalesofMarcoPolo.C.ThetalesofColumbus. D.Merchantsandexplorers.2.Whatdidthetradedealsbetweenmerchantsfromdifferentcountriesresultin?A.Furtherexplorationoftheoceans.B.Mankind’sgreatestachievements.C.ConstructionoftheancientSilkRoad.D.Betterunderstandingofeachother’sculture.Post-reading3.ZhengHeandhisfleetssailedasfaras___________.

A.theIndianOcean B.theSouthChinaSeaC.theeastcoastofAfrica D.themouthoftheRedSea4.WhyisthereanurgentneedtostudytheArctic?A.Topromoteforeigntrade.B.Tolookformorenaturalresources.C.Tostrengthenthebondsbetweenc