高中英语选修九 Unit 2 Sailing the oceans 课件(Warming-up&reading)(新人教版).ppt

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1、SailingtheoceansSailingQuestion:Howmanyoceansarethereintheworld?PacificOceanAtlanticOceanIndianOceanArcticOceanworldmapexplorationWhatisanavigator?Whatisthedifferencebetweenanavigatorandanexplorer?Anavigatorexploresnewroutesacrossthesea.Anavigatorexplor

2、esthesea;anexplorerdiscoversnewplacesonland.ZhengHeIsheanavigatororanexplorer?HemadesevenvoyagesduringhislifetimeandcontributedgreatlytothescienceofnavigationinChina.compassAstrolabe(星盘)Sextant(六分仪)sea/nauticalchartnavigatorsearlynavigationalinstrumentsr

3、eadingSailingtheoceansUsingnatureKeepingalongsidethecoastlineUsingcelestialbodiesUsingwildlifeUsingtheweatherUsingtheseaUsingcelestialbodiestoplotthepositionstoworkoutthelatitudeaspecialcloudformationindicatesthereislandclosebyUsingwildlifeIfseaweedwasfr

4、eshandsmelledstrongly,theshipwasclosetoland.Seabirdscouldbeusedtoshowthewaytolandwhenitwasnowheretobeseen.UsingtheweatherfogTohelpidentifythepositionofastreamorriverwhen…TodirecttheirsailingUsingnavigationalinstruments1.Findinglongitude2.Findinglatitudet

5、hecompassthebearingcircle(方位圆)theastrolabe(星盘)thequadrant(象限仪,四分仪)thesextant(六分仪)LanguagePointWorkout⑴Seeifyoucanworkoutthisbillout.计算弄明白⑵Theplotissocomplicatedthatit’lltakeyouawhiletoworkitout.⑶Ican’tworkoutGeoff;onedayhe’sfriendly,thenextdayheignoresme

6、completely.⑷Ihaven’tworkedoutwho’sgongtolookafterthekidstonight.明白计划identifyvt.把…等同于;认出,鉴定,认为同一Iidentifiedthejacketatonce；itwasmybrother’s．identificationn.辨认,鉴定,证明,视为同一identityn.同一性,身份,一致,特性,恒等式identitycard身份证1.Wemaywellwonderhowseamenexploredtheoceansbe

7、forelatitudeandlongitudemadeitpossibletoplotaship’spositiononamap.在经纬度未能绘出航船在地图上的位置之前，我们很想知道航海员是怎样在海上探险的。ReadingPage12①may/mightwelldosth.很可能，极有可能做某事Theseareexcellentphotographsandwemaywellusetheminourmagazine.②主语+think／feel／make／consider/find…+it+n.／adj

8、.+(for／ofsb.)+todo/that…其中it为形式宾语，for／of引出动词不定式的逻辑主语。我认为学好英语对他很重要。IthinkitimportantforhimtolearnEnglishwell.我已经表明我反对这个计划。IhavemadeitclearthatIobjecttotheplan.atthemercyofIdon’tliketobeatthemercyofsuchaman.havemercyon/showm