小学、初中、高中各种试卷真题知识归纳文案合同PPT等免费下载www.doc985.com小学、初中、高中各种试卷真题知识归纳文案合同PPT等免费下载www.doc985.comUnit5Intotheunknown1．YellowstoneNationalParkoffersavarietyof(各种各样的)rangerprogramsthroughoutthepark，andthroughouttheyear.2．Kidscantesttheirskillsandcomparetheirabilitiesto(与……相比较)theanimalsofYellowstone.3．Stayfor(逗留)aslittleoraslongasyourplansallow.4．Discoverwhyartistsandphotographerscontinuetobedrawnto(被……吸引)thisspecialplace.5．TheruinsofahugeMayacityhavebeendiscoveredinGuatemalawiththehelpof(在……的帮助下)theremotesensingtechniqueLiDAR，accordingtotheNationalGeographiconThursday.6．LiDARisexceptionallyusefulfordetecting(vt.侦察出；发现)archeologicalsites，asitgetsthrough(通过)junglesandotherfeaturesthatholdup(阻碍；延误)explorationontheground.7．Thislargelostcityenvelops(vt.覆盖)siteslikeTikal，Holmul，andWitzna—knownfortheirpyramids—butshowsthatthesefamousheritageareasarethetipoftheiceberg(冰山一角)ofthislosturbannetwork.8．HiddenunderthejunglesoftheMayaBiosphereReserve(n.保护区)，morethan60,000human-madefeatures—homes，canals，highways，someofwhichcanevenreachthemodernizedstandard(达到现代化的水平)—havebeenidentified(vt.确认；识别；鉴别)byaninternationalcooperationofresearchersheadedbythePACUNAMFoundation，aMayaculturalandnaturalheritageorganization.9．Thereareentirecitieswedidn’tknowaboutnowshowingup(出现)inthesurveydata...10．Datasuggeststhatseaiceisthinning(v.thin使稀薄)overtimeduetoclimatechange.11．However，existing(adj.现存的v．exist存在n．existence存在)waysofmeasurementdonotprovideaclearandcontinuouspictureofthestateofseaice.12．Unfortunately(adv.不幸地n．fortune机遇；好运；财富adj.fortunate幸运的adv.fortunately幸运地)，satellite-basedseaicethicknessmeasurementsareinaccurateduringthesummermonths：thetimeoftheyearwiththegreatestmelting.13．Asaresult(因此；结果)，thesimplecalculation(icelevel－sealevel)doesnotworkasradarsystemsareunabletodifferentiatebetweenoceanwaterandice，thusmaking(making为现在分词作结果状语)measurementsinaccurate(adj.不精确的；不准确的)．asaresult因此；果结小学、初中、高中各种试卷真题知识归纳文案合同PPT等免费下载www.doc985.com小学、初中、高中各种试卷真题知识归纳文案合同PPT等免费下载www.doc985.comasaresultof由于；因为resultin致；果是导结resultfrom...由……生；由产……引起14．Theresearchteamled(过去分词作后置定语)byJackLandy，ascientistattheUniversityofTromsø(TheArcticUniversityofNorway)，usedthenewmethodtodistinguishbetweenseawaterand(区别……和……)ice.
