高中英语选修九-Unit-2-Sailing-the-oceans-课件(Warming-up&re

SailingQuestion:Howmanyoceansarethereintheworld?PacificOceanAtlanticOceanIndianOceanArcticOceanworldmapexploration1.Whatisanavigator?2.Whatisthedifferencebetweenanavigatorandanexplorer?Anavigatorexploresnewroutesacrossthesea.Anavigatorexploresthesea;anexplorerdiscoversnewplacesonland.ZhengHeIsheanavigatororanexplorer?HemadesevenvoyagesduringhislifetimeandcontributedgreatlytothescienceofnavigationinChina.compassAstrolabe(星盘)Sextant(六分仪)sea/nauticalchartnavigatorsearlynavigationalinstrumentsSailingtheoceansUsingnatureKeepingalongsidethecoastlineUsingcelestialbodiesUsingwildlifeUsingtheweatherUsingtheseaUsingcelestialbodiestoplotthepositionstoworkoutthelatitudeaspecialcloudformationindicatesthereislandclosebyUsingwildlifeIfseaweedwasfreshandsmelledstrongly,theshipwasclosetoland.Seabirdscouldbeusedtoshowthewaytolandwhenitwasnowheretobeseen.UsingtheweatherTohelpidentifythepositionofastreamorriverwhen…TodirecttheirsailingUsingnavigationalinstruments1.Findinglongitude2.Findinglatitudethecompassthebearingcircle(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,thenextdayheignoresmecompletely.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.Wemaywellwonderhowseamenexploredtheoceansbeforelatitudeandlongitudemadeitpossibletoplotaship’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.+(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/showmercyto对……表示怜悯Theterroristsshowednomercytothehostages.withoutmercy毫不留情地Themotherleftthedyingbabyinthehospitalwithoutmercy.Thecountrylifehewasusedto_____greatlysince1992.(2005山东)A.changeB.haschangedC.changingD.havechanged①usedtodo表过去习惯化的动作或状态②be/become/getusedtodoing/n.习惯于(to为介词)③beusedtodo为被动语态，表示“被用来做某事”Maybeyouhavebeentomanycountries,butnowhereelse_____suchabeautifulpalace.(2004辽宁)A.canyoufindB.youcouldfindC.youcanfindD.couldyoufindnowhereadv.无处,到处都无该词用于句首时，要用倒装语序。NowherecouldIseehim.我哪儿也看不到他。---Washisfatherverystrictwithhimwhenhewasatschool?---Yes.Hehadneverpraisedhim_____hebecameoneofthetopstudentsinhisgrade.(03北京春)A.afterB.unlessC.untilD.whenno/not/never…until…直到……才randomn.随意,任意adj.任意的,随便的,胡乱的atrandom=aimlessly;withoutanyplan随机，随便Thetravelersattheairportweresearchedatrandom.referv.Herpupilsoftenrefertothisdictionary.Don’trefertoitagain.提到,涉及,查阅,咨询preciseadj.精确的,准确的Alawyerneedsaprecisemind.Acameraisaninstrumentofprecision.