Unit3BacktothepastReading2sailingtheoceans學(xué)習(xí)目標(biāo)：1、題型訓(xùn)練2、能力提升學(xué)習(xí)流程及內(nèi)容：Leading–in2.Discussion3.Assessment4.CheckingStep1導(dǎo)：（3分鐘）老師點評學(xué)案答題情況Step2議：(7分鐘）Step3展：（20分鐘）Step4評：(7分鐘老師評價和補(bǔ)充）Task1閱讀下列短文,從每題所給的A、B、C、D四個選項中選出最佳選項。AThingstodoinMiyakojimaFreshislandfoodDelightyoursenseswithjuicy,melt-in-your-mouthMiyakobeef,deliciousMiyakosoba(noodlesservedinbroth),orfreshfruit.Icecreamwithapinchofsaltknownas“yukishio(snowsalt)”doesmorethansimplykeepyoucool.UniquebeachesYonahaMaehamaBeachisthemostrenownedbeachinMiyakojima,wherewhitesandstretchesforsevenkilometers.Theoceaniscoloredinemeraldblue,mesmerizingvisitorswithitsbeauty.CompactSunayamaBeach,knownforitsarch-shapedrock,ishiddeninasmallcove(海灣),andcanonlybeaccessiblebywalkingthroughanarrowtunneloftrees.DiverseandcolorfulfishSnorkeling(淺灘潛水)isamust-tryinMiyakojma.Densecoralreefs,schoolsoftropicalfish，seaturtlesandplentyofspacetofreedivetodepthsof8to15metersclosetotheshorearestandoutfeatures.Forbeginners,AragusukuandShigiraareagoodchoicebutadvancedsnorkelersmayseeImgyoMarineGarden,WaiwaiBeachandShimojishimaastheirperfectspots.ScubadivingMiyakoIslandisadivingmecca(圣地),withawealthofdivesitestoexplore,includingmanyunderwatercavesandcaverns.Eventhosewithoutadivinglicenseneednotbeheldback.DiveshopsandtouroperatorsalsoofferbeginnerstourstoexploreMiyakoIsland’sabundantunderwaterenvironment.ThebridgesIrabuBridgeisthelongesttoll-freebridgeinJapan.ItconnectsMiyakojimaandIrabujima,stretchingfor3540m,drawingagentlecurve(弧線).Thelengthofthebridgecanalsobereadas“san(3)go(5)noshi(4)ma,”meaningcoralislandinJapanese.SmallerbridgesconnectIrabuBridgeandShimojiislands,givingvisitorsadditionalbeachoptions.OnShimojiIsland,thereisaboardwalkaroundTooriike,twodramaticmarinepondsconnectedtoeachotherandtheseabyanunderwatercavesystem.1．WhatistrueaboutSunayamaBeach?A．Itstretchesforseveralmiles.B．Itisnotveryeasytoaccess.C．Itattractsalotofskillfuldivers.D．Itisfamousforitspurewhitesands.2．Whichofthefollowingwouldanunskillfulsnorkelergoto?A．ImgyoMarineGarden.B．WaiwaiBeach.C．ArgusukuandShigira.D．Shimojishima.3．VisitorscanchoosetoreachthebeachesfromIrabuBridge________.A．bytakingsomesmallbridges.B．bysnorkelingashortdistanceinthewater.C．throughtheconnectionbetweentheponds.D．throughdivingfromthelongbridgeintosea.Task2BTheBlueEyeoftheSaharaisageologicalformationintheSaharaDesertthatresemblesanenormousbullseye.Theformationstretchesacrossa40-kilometer-wideregionofthedesertinthenationofMauritania.Forcenturies,onlyafewlocaltribesknewabouttheformation.Itwasfirstphotographedinthe1960sbyastronautswhouseditasalandmarktotracktheprogressoftheirlanding.Later,theLandsatsatellitetookadditionalimagesandprovidedinformationaboutthesize,height,andextentoftheformation.GeologistsoriginallybelievedthatEyeoftheSaharawascreatedwhenanobjectfromouterspacecrashedintothesurface.However,lengthystudiesoftherocksinsidethestructureshowthatitsoriginsareentirelyEarth-based,astheformationcontainsrocksthatareatleast100millionyearsold;somedatebacktowellbeforetheappearanceoflifeonEarth.Millionsofyearsago,volcanicactivityfromdeepbeneathEarth’ssurfaceliftedtheentirelandscapearoundtheEye.Afterthevolcanismdieddown,windandwatererosion(侵蝕)begantoeatawayatthelayersofrock.Afteryearsoferosion,theregionbegantosettledownandfallinonitself,creatingtheroughlycircular“eye”feature.TheEyeoftheSaharaattractsbothtouristsandgeologiststostudytheuniquegeologicalfeatureinperson.However,becausetheEyeislocatedinaremoteregionofthedesertwithverylittlewaterorrainfall,itisnotundermuchthreatfromhumans.ThatleavestheEyeatthemercyofnature.Theongoingeffectsoferosionthreatenthelandscape,justastheydootherplacesontheplanet.Desertwindsmaywellbringmoredunes(沙丘)totheregion,particularlyasclimatechangecausesincreaseddesertificationinthearea.It’squitepossiblethat,inthedistantfuture,theEyeoftheSaharawillbeburiedundersandanddust.Futuretravelersmayfindonlyawindsweptdesertburyingoneofthemoststrikinggeologicalfeaturesontheplanet.4．WhatdoweknowabouttheBlueEyeoftheSahara?A．Ithasbeenknownforcenturies.B．Itwascreatedbyobjectsfromouterspace.C．Itwasusefultoastronautsinthe1960s.D．Itwasfirstphotographedbyasatellite.5．Whichfactordirectlycontributestoitscircular“eye”feature?A．Volcanicactivity. B．Climatechange.C．Windandwatererosion. D．Desertification.6．WhichbestdescribethefutureoftheEyeoftheSaharaaccordingtothetext?A．Desirable. B．Secure. C．Uncertain. D．Worrying.7．Whatisthetextmainlyabout?A．WhatistheEyeoftheSahara?B．WhyistheEyeoftheSaharainDanger?C．WhyIstheEyeoftheSaharaPopular?D．HowCanWeSavetheEyeoftheSahara?Task3CSonowyou’rereadytorealizeyourdreamtoexploreanothercountry,andfindthesoulofthecountry.Unfortunately,noneofyourfriendssharethatdream.Sowhatdoyoudo?Youcouldaskeveryoneyouknow--families,acquaintances,co-workers.Youcouldjoinatour.____8____.Lastyear,ImadeatriptoChina,andthenzigzaggedonamultinationaljourneythroughIndonesia,Thailand,EnglandandFrance.____9____.IremembersearchingdesperatelyforaccommodationsinIndonesiabecausetheuniversitylistedinmybookletnolongerhaddormitoriesfortravelers.AnothertimeinThailand,ahotelclerktriedtooverchargemeandonlygaveupafter10minutesofarguing!____10____.Butitwouldhaverobbedmeofotherfantasticexperiences--sevenpleasantdaysinthebackofatruckchattingwithaBrit,twoAussiesandtwoNorwegians!EatingethnicfoodonmywaythrougheasternSouthKoreawithfouryouthfulJapanesehighschoolstudents!Andwhentheyheardmynextstopwastheirhometown,theyevenaskedabilingualfriendtopickmeupatthetrainstation!Comparedwithtravellingwithacompanion,Ihavemoreopportunitiestomeetpeoplewhentravelingsolo.____11____.Othertravelerswillalsobemorewillingtosharewithyoutheirstoriesandincredibleinsightsintotheplaceyou’revisiting.Thekeytosolotravelistoopenyourmind,closeyoureyesandleapin!Don’teverletalackofcompanionshipconstrainyoufromdoingwhatyoureallywanttodo.____12____.A．Localsaremorelikelytoopentheirmindandbefrankwithyou.B．Totravelaloneisadifficultdecisionforanyone,especiallyforwomen.C．Or,youcouldgoalone.D．Ofcourse,therehavebeensomenot-so-pleasantexperiencesduringmyjourney.E．Itcanhelpyourproblem-solvinganddecision-making.F．Havingacompanionmightsafeguardmefromsomeofthoseproblems.G．Onceyougosolo,you’llbeamazedathowwonderfulyourtravelexperienceswillbe.Task4完形填空ThesunwasbeginningtosinkasIsetoffintotheHarennaForest.Iwasonmywayto____13____auniquehoneyharvest.Here,insouth-eastEthiopia,hand-carvedbeehives(蜂箱)areplacedinthe____14____.Reachingthemtogetthehoneyisdifficult—andoften____15____.I____16____beekeeperZiyadoverawidestretchofgrasslandbeforeenteringathickjungle.Ziyadbeganpreparations.He____17____handfulsofdamptreeleaves,wrappedthemwithstring,and____18____thebunchtocreateatorch(火把).Then,withoneendofaropetiedtohiswaistandtheotherendaroundthetrunkofatree,Ziyadbegan____19____.Hestoppedeveryfewminutestomovethe____20____higherupthetreetrunk.____21____,Ziyadgotclosetothehivewhichwasaround20metresabovetheground.Sittingonabranch,he_____22_____towardsitandblewsmokefromhistorchintoatinyholeinthehive.Suddenly,Ziyadletoutasharpcry.Withinseconds,he’d_____23_____thetrunkandwasbackontheground.Itwastoo_____24_____tocollectthehoney.Acoolsummerhaddelayed_____25_____.Babybeeswerestillinthehoneycombs(蜂巢).Theadultbeeswere