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大小:1.39 MB
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时间:2020-05-24
《高中英语选修九 Unit 2 Sailing the oceans 课件(Warming-up&reading)(新人教版).ppt》由会员上传分享,免费在线阅读,更多相关内容在PPT专区-天天文库。
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
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