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.com选择性必修第三册Unit2OutofthisworldⅠ.阅读理解AAroundthecountryandaroundtheworld，thereisnoshortageofhumansuffering.Poverty，disease，violence，hurricanes，wildfireandmoreareconstantlytroublinghumanity，andevenourbesteffortsthusfarcan’taddressallofeverybody’sneeds.Manyarelookingforplacestocutfunding，andoneofthefirstplacesthatcomesupinconversationisexcessivespendingonspaceexploration.Whatgoodisittoconductmicrogravityexperimentsrepeatedlywhenchildrenarestarving？Whylaunchsomanyspace-relatedprojectswhennuclearwarthreatensourplanet?Thisisalineofthinkingthathasbeencomingupthroughouthistory.Yes，it’sshort-sighted，inthatitfailstorecognizethatourgreatestproblemsrequirelong-terminvestment，andthatsociety’sgreatestadvancescomeaboutthroughhardwork，research，developmentofdecadesafterthatismade.Investinginscienceisinvestinginthebettermentofhumanity.Overtheseyears，muchoftheresultsofthespaceresearchhavebeenadaptedtobeapplicabletoourdailylives.Forexample，NASA’sadvancementsintheareaofroboticshavegivenmanufacturersanadditionalbasisforthedevelopmentofmoreadvancedartificiallimbs.Additionally，certainnutritionalenrichmentingredients(成分)thatweredevelopedbyNASAhavebeenintegratedintobabyfoodformula.Spacetechnologyhasalsohelpedimproveeconomies.Withinthenextthreeyears，thespaceexplorationandspacetourismindustryareexpectedtobevaluedat3trillionUSD.Itistruethatforeverydollarwespendonthespaceprogram，theUSeconomyreceivesabout$8ofeconomicbenefit.Spaceexplorationcanalsoserveasamotivationforchildrentoenterthefieldsofscienceandengineering.Tomanypeople，theideaofspacetravelmaystillseemfarfrompractical.However，Ibelievethatitisimportantthatwekeepgoingforwardorwe’llriskdelayingfurtherdiscoveriesandtechnologicaladvancementsthatwillbebeneficialforus.1．Accordingtoparagraph1，whatdosomepeoplethinkofspaceexploration?A．Useless.B．Wasteful.C．Beneficial.D．Harmful.2．Whatdoestheunderlinedword“that”inthesecondparagraphreferto?A．Theadvance.B．Thedevelopment.C．Theinvestment.D．Theproblem.3．HowdoesNASA’sadvancementscontributetothedevelopmentofartificiallimbs?A．Byprovidingafoundation.B．Byaddingcertainmaterials.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.comC．Byactingasadrivingforce.D．Byhelpingrealizethemassproduction.4．Whatcanweinferfromthelasttwoparagraphs?A．Spaceprogramsareofgreatbenefittous.B．Spacetravelappearstobewithinpeople’sreach.C．Moreandmorechildrenareinterestedinscience.D．Newtechnologicaldiscoverieshavebeendelayed.BAschoolscienceprojectbyagroupofstudentsinCanadahasledtoanimportantdiscovery：EpiPensmightceasetofunctionnormallyinspace.EpiPens，theauto-injectors(注射器)thatdeliverlife-savingmedicinecalledepinephrine，helpwithsevereallergic(过敏)reactions.Theepinephrineopensupairways，maintainsheatfunctionandbloodpressureandcalmstheallergicreactionsothepersoncanbreathe.ThestudentsworkingonProgramforGiftedLearners(PGL)，werecuriousabouthowradiationinspacewouldaffectthemolecular(分子)structureofepinephrine.AspartofaNASAinitiativecalled“CubesinSpace，”whichlaunchesscienceexperimentsstudentscomeupwith，theysenttwocubeswithsamplesofbothpureepinephrinea...