2021-2022学年必修三Unit2Makingadifference课时作业2

Unit2Makingadifference课时作业第一节、阅读理解阅读下列短文，从每题所给的四个选项中，选出最佳选项，并在答题卡上将该项涂黑。ABritishsculptorJasonTaylorhasmadeithismissiontousehistalenttoconserveourecosystems(生态系统)bycreatingunderwatermuseums．Overtheyears,theenvironmentalisthasputover850massiveartworksunderwaterworldwide．OnFebruaryl,2021,Taylorlaunchedhislatestwork-TheUnderwaterMuseumofCannes．"Themaingoalwastobringattentiontothefactthatouroceansneedourhelp,"TaylortoldDezeen．"OceanecosystemshavebeendestroyedbyhumanactivitiesintheMediterraneanregionoverthepastfewdecades,anditisnotobviouswhatistakingplacewhenobservingtheseafromafar．"TheUnderwaterMuseumofCannescontains6sculpturesfeaturinglocalcitizensofvariousages．TheyrangefromMaurice,an80-year-oldfisherman,toAnouk,a9-year-oldstudent．Toweringover6-foot-tallandweighing10tons,thefacesaresectionedintotwoparts,withtheouterpartlikeamask．Themaskindicatesthattheworld'soceansappearpowerfulandunbeatablefromthesurfacebuthouseanecosystemthatisextremelyfragiletocarelesshumanactivities．Thoughthewaterssurroundingthesculpturesnowappearapristine(清新的)blue,theseabedwasfilledwitholdboatengines,pipes,andotherhuman-madetrashwhentheprojectbeganaboutfouryearsago．Besidesremovingthetrash,Tayloralsorestoredthearea'sseagrass．Justonesquaremeteroftheseagrasscangenerateupto10litersofoxygendaily．Theseagrassalsohelpspreventcoastalerosionandprovideshabitatsformanyoceancreatures．"Theideaofcreatinganunderwatermuseumwastodrawmorepeopleunderwateranddevelopasenseofcareandprotection,"TaylortoldDezeen．"Ifwethrewunwantedwastenearaforest,therewouldbeapublicoutcry(强烈的抗议)．Butthisishappeningeverydayinoursurroundingwatersanditlargelygoesunnoticed．"1．Whataretheunderwatermuseumsintendedtodo?A．Tomakehugeprofits．B．ToraiseawarenessofprotectingtheoceanC．ToshowJasonTaylor'stalent．D．Todrawattentiontoendangeredseaanimals．2．Whydoestheouterpartofthesculptureslooklikeamask?A．Topopularizethefeaturesofthelocals．B．ToremindpeopletoprotectthemselvesC．Toreflectpeople'sprotectionoftheocean．D．Tostressthesensitivenessoftheecosystem．3．What'sparagraph4mainlyabout?A．Howtheprojectwasstarted． B．Howtheseagrasswasrestored．C．Whatrecoveryefforttheprojectmade． D．Whythesurroundingswereimproved．4．WhatcanweinferfromwhatJasonTaylorsaidinthelastparagraph?A．Thesituationoftheoceaniseasilyignored．B．Thedestructioncausedtotheoceanisnoticeable．C．Forestsplayamoreimportantroleinecosystems．D．Peoplehavezerotolerancetodamagedonetonature．【参考答案】BDCABLifeontheInternationalSpaceStation(ISS)——theplacewhereastronautsdwell(居住)inspace-differsfromthatonEarth.Forexample,astronautshavetorelyontheISS’lifesupportsystem,whichprovidesoxygenandabsorbscarbondioxide.Butsometimesastronautsneedtodealwithunusualairleaks.Normally,theISSreleasesasmallamountofaireachdaytoridtheharmfulgases.Butrecently,theairseemedtobeleakingataslightlyhigherratethanusual,whichbecameacauseforconcern,accordingtoMSN.ThethreecrewmemberscurrentlyonboardarestayingintheRussiansegment(舱段)oftheISStemporarilywhileNASAtriestofindtheoriginoftheleakintheUSsegment.Thisisn’tthefirsttimethatanairleakhasoccurredontheISS.OnAug29,2018,anairleakwasdiscoveredontheISS.Fortunately,sixpeopleonboardfoundaholemeasuring2millimetersindiameteronSoyuzMS-09,aRussianspacecrafttemporarilydockedwiththeISS.Theastronautspatchedtheholewithtape.Butthequestionremains：Whatcancauseholesinthehardsurfaceofspacecrafts?Spacedebris(碎片)can.Inloworbit,spacedebriscirclesaroundEarthatspeedsbetween7to8kilometerspersecond.Becauseofthehighspeed,itcanpenetratethesurfaceoftheISS.ANASAreportsubmittedtotheUSCongresssaidtheISShasa55-percentchanceofbeingpenetratedbysomesortofspacedebris,accordingtothewebsiteNewScientist.However，findingatinyholeisnoteasy.TheISSmeasuressome109metersbyabout73meters,roughlythesizeofasoccerfield.Sohowdoastronautsfindatinyholeinsuchalargearea?Whenairleaksoccur,astronautssealoffvarioussectionsoftheISStonarrowdownthearea.Oncethelocationoftheleakisfound,itisclosedandthepressureoneachsideischecked.ThisisexactlywhatNASAisdoingnow.TheUSspaceagencyhasbeentryingtofindthehole,whichisequivalentto“findingpinholesinalargeairliner”,XinhuaNewsAgencynoted.5.Whatcanweknowabouttherecentairleak?A.Ithasexposedastronautstoharmfulgases.B.MoregasthanusualisleakingintheISS.C.ItishappeningintheRussiansegment.D.NASAhasalreadyfoundtheoriginoftheleak.6.Whatcanwelearnfromthetextabouttheairleakin2018?A.Itwasduetothedockingofspacecrafts.B.TheholewasfoundonthesurfaceoftheISS.C.Itwasrepairedwithtapebycrewmembers.D.Spacedebriswasfoundinthespacecraft.7.Whatisthemainideaofparagraph4?A.Whatcausesspacedebris.B.WhatthesurfaceoftheISSislike.C.Whyspacedebriscancauseairleaks.D.Howtofindholesmadebyspacedebris.8.Itcanbeinferredfromthetextthatthebiggestchallengeinrepairingtheleakis.A.findingtheoriginoftheleakB.closingvarioussegmentsoftheISSC.patchingtheholewithtapeD.checkingthepressureofthesections【参考答案】BCCA第二节、七选五根据短文内容，从短文后的七个选项中选出能填入空白处的最佳选项，选项中有两项为多余选项。Wealldolittlethingstoboostthewaywefeelandthinkthroughouttheday.Somethingassimpleastakingawalkoreatingapieceofchocolatecanbrightenyourmoodalmostinstantly,thankstocertainchemicalreactionsthatoccurinthebrain.1Ifyou’regoingthroughsomethingcomplex,youneedamorepermanentpractice.That’swherewritingcomesin.AsMentalHealthAwarenessMonthbegins,it’sworthlearningaboutthewaysthatyoucanusewritingtosupportyourmentalwell-being.2Usewritingformindfulness.Mindfulnessisatried-and-truetechniqueforimprovingmentalwellness,butcanwritinghavethesameeffect?3Byfocusingonaparticularmomentandgettingitalloutthereonthepage,youcanfreeyourselffromanyoftheotherconcernsthatarecrowdingyourmind.Thisway,youcanusewritingasanapproachtomindfulnessandasawayofrelievingstress.Anotherbenefittowritingisitsabilitytoclearyourmindofworries,negativethoughts,orsourcesofpain.4Fortunately,writingcanspeeduptheprocessofrestoringmentalclarity.5Peopleweremorelikelytotalktoothersaboutapainfuleventafterwritingaboutitprivately,whichpowerfullysuggeststhatwritingcanindirectlyleadtoreachingoutforsupport,whichcanmeanevengreaterhealingandrelief.Throughtheprocessofpopulatingablankpagewithlettersandwords,writingcanbeausefulmentalhealthtoolthatbothrecordsyourexperiencesandallowsyoutoworkthroughthem.A.Becomemoreself-aware.B.Thesepleasuresarejusttemporary,however.C.There’srealpowerbehindthepen—here’swhy.D.Writingisalsothebestmethodofself-caretreatment.E.Clearingyourbrainofnegativethoughtscanbereallytoughwork.F.Actually，theactofwritingforamere20minuteseachdaycanwork.G.Thisisbecausewritingtendstostimulatequestionsaboutyourlifeanddirection.【参考答案】.BCFED第三节、完形填空阅读下面短文，从每题所给的A、B、C、D四个选项中选出可以填入空白处的最佳选项。AsonlineschoolingtookeffectintheUS,parentsnotedmanychildrenlackedlearningspaceathome．So,theygot1．Theybuilt,collected,anddonateddesks,2remotelearningforkidsinneed．InMitchCouch'shomeinCalifornia,hisdaughterandsonkept3thekitchentableforremotelessonsorbeingbothered．Thisgavehiman4－hewouldmakethemtheirowndesks．Thedeskswerekid-size,simpleand5,madeofwood．Butthey6．Thenhethought：Whynotprovideotherchildrenwithindividuallearningareasto7theirsupplies?“Ispentonly$20－significantlylessthanwhatstoreschargefordesksthataresuddenlyin

8,"Couchsaid．“Idecidedtoshowothershowtobuilddesks．SoImadeavideoaboutdesk-makingto9fellowparents．"AgrocerystoresawCouch's10online,offeringtofundmaterialsifhewouldbuildmore．Theyalso11localschoolofficialstohelpidentifythoseinneed．12,therewasanorderfor20desks,butitquicklyincreasedbyatleast50．BynowCouchisso13－hecanknockoneoutinabout11minutes．Couchsaysthemessagesof