試卷第=page11頁(yè)，共=sectionpages33頁(yè)試卷第=page11頁(yè)，共=sectionpages33頁(yè)復(fù)旦大學(xué)附屬中學(xué)2024學(xué)年第一學(xué)期高一年級(jí)英語(yǔ)期末考試試卷(考試時(shí)間：120分鐘滿分：150分)I.ListeningComprehension(25分)SectionADirections:InSectionA,youwillheartenshortconversationsbetweentwospeakers.Attheendofeachconversation,aquestionwillbeaskedaboutwhatwassaid.Theconversationsandthequestionswillbespokenonlyonce.Afteryouhearaconversationandthequestionaboutit,readthefourpossibleanswersonyourpaper,anddecidewhichoneisthebestanswertothequestionyouhaveheard.1.A.Bossandsecretary.

B.Teacherandstudent.C.Clerkandcustomer.

D.Policeandprisoner.2.A.Inalibrary.

B.Atatravelagency.C.Inaninformationcenter.

D.Atastadium.3.A.Thegirlshouldtellherfeelingstohersister.B.Thegirlshouldtalktohersister’sboyfriend.C.Thegirlshouldnotinterfereinhersister’sloveaffairs.D.Thegirlshouldexpressherdislikeinasilentway.4.A.30dollars.

B.45dollars.

C.15dollars.

D.70dollars.5.A.Heignoredthewoman’swords.

B.Thewomanisaskingthemantoleave.C.Itisnotallowedtoparkanycarthere.

D.Themanisamemberofthestaff.6.A.Notmorethantwohours.

B.Lessthanfourhours.C.Morethantwohours.

D.Lessthanhalfanhour.7.A.Manystudentsareinterestedintheclass.B.Manystudentsareboredwiththeclass.C.Fewstudentsthinktheclassisdull.D.Fewstudentsmeettheprofessor’srequirements.8.A.Heiswaitingforthewintertocome.B.Hecangetadiscountoftheheavyjacketnow.C.Heneedstobuyawarmjacket.D.Hehaspreparedforthewinter.9.A.A100%purecottonshirtinblue.

B.Ashirtindarkcolor.C.A100%purecottonshirtinwhite.

D.Ashirtinbrightcolor.10.A.DismissSimonfromthecompany.B.AskSimontoattendthemeetingatonce.C.HelpSimontoaskforleave.DTalkwithSimonabouthisseriousproblem.SectionBDirections:InSectionB,youwillheartwopassagesandonelongerconversation.Aftereachpassageorconversation,youwillbeaskedseveralquestions.Thepassagesandconversationwillbereadtwice,butthequestionswillbespokenonlyonce.Whenyouhearaquestion,readthefourpossibleanswersonyourpaperanddecidewhichoneisthebestanswertothequestionyouhaveheard.Questions11through13arebasedonthefollowingpassage.11.A.Therehadbeenaheavysnowandrain.B.Alorrysuddenlydroveontotheroad.C.Thedriverdrovefastdespitethebadroadcondition.DAlloftheabove.12.A.Whenhewasdrivingontheroad.

B.Lastmonth.C.Thedaybeforetheaccident.

D.Notmentionedinthepassage.13.A.Heappliedthebrakes.

B.Hedroveintothenextlane.C.Hemovedbackandforth.

D.Heturnedaroundhiscar.Questions14through16arebasedonthefollowingpassage.14.A.ManyflashmobsareorganizedbytheInternet.B.Peopledosomethingusualinaflashmob.C.Peoplegatherinaprivateplaceinaflashmob.D.Flashmobsarenolongerpopularnowadays.15.A.InMay,2003.

B.InJune,2003.C.InMay,2009.

D.InJune,2009.16.A.Promotepoliticalandsocialevents.B.Advertiseaproduct.C.Remembersomebody.D.Haveaget-together.Questions17through20arebasedonthefollowingconversation.17.A.Fashiontrend.

B.Education.C.Howtosucceedincareer.

D.Thebalancebetweenworkandfamily.18.A.Theyhaveachievedmuchinscienceandtechnology.B.Allofthemcanhaveaccesstoeducation.C.Moreandmorewomenhavereceivedhighereducation.D.Women’seducationhasbeendevelopedalottheseyears.19.A.Tobetruetothemselves.B.Tokeepfocusingonwhatisimportant.CTopursuedreamswhentheyareyoung.D.Totakecouragetoovercomefears.20.A.Confused.

B.Positive.

C.Negative.

D.Critical.II.GrammarandVocabulary(1*50=50分)SectionADirections:BeneatheachofthefollowingsentencestherearefourchoicesmarkedA,B,CandD,choosetheoneanswerthatbestcompletesthesentence.1．Beingsmartisnotenough.Itcouragetomakedifferenceinthisworldandtofindanswerstoitsurgentchallenges.A．costs;the B．costs;a C．takes;/ D．takes;a2．Studentsareresponsible________familiarizingthemselves________laboratorystandardoperatingproceduresandsafetyrulesbeforetheysetoutdoingexperiments.A．of;with B．in;for C．for;by D．for;with3．Beneaththeglowoftraditionalchandeliersandmodernspotlights,theNotreDameCathedralemergedreborn,itsrestoredaftermorethanfiveyearsofreconstruction.WhichoneisIMPROPER?A．majesty B．splendourC．magnificence D．establishment4．Thoughnoonewasinjured,thelatestassassinationattempttargetingDonaldTrumpacceleratedthatviolencecontinuestoinfectAmericanpresidentialpolitics.A．respects B．concerns C．relations D．values5．Theluxuryclothingbrandreportedlyattributeditsdeclineinearningstoashifttowards“affordable”amongChineseconsumersontopofotherexternalfactors.A．variations B．offerings C．a(chǎn)lternatives D．replicas6．Today,manyshoppingmallsareinthemidstofafrommereshoppingdestinationsintoentertainmenthubsthatcatertoawiderangeofinterestsandactivities.A．transformation B．transfer C．transition D．transmission7．“Myheart,thoughtsandprayerseveryonebythishorrifichurricane,”saidthegovernorstandingontheruinsofthecity.A．gofor;concerned B．goto;concernedC．gooutfor;affected D．gooutto;affected8．Hypothesesarewidely________aboutthecauseofthedeadlyJejuAirplanecrashthatkilled179peopleonboardafterreportingabirdstrike,butnosignificantconsensus(共識(shí))hasyetbeenreached.A．varied B．restored C．renewed D．rushed9．Thegatheringcloudspreventedtheskydiverfromthejump,becausethesharpendsofeachraindropwouldbepointingupathim.It’snotworththemisery.A．staging B．a(chǎn)ttemptingC．a(chǎn)pproaching D．a(chǎn)ccompanying10．Uponarrivingattheholidayresort,youwillbegivenamapsothatyoucanseewhereyourvillaistheswimmingpoolandotherfacilities.A．withrespectto B．inthenameof C．incompanyof D．inrelationto11．Forcreativityto,schoolshavetofeelfreetoinnovatewithouttheconstantfearofbeingcriticizedfornotkeepingupwiththeprogramme.A．a(chǎn)wait B．flourish C．reminisce D．mass12．Helicopterparentshoverovertheirchildren’slivesandevenhavethemwherevertheygotomakesuretheyareundersupervision.A．inturn B．intow C．incompany D．instore13．ApowerfultyphoonnorthernPhilippineislands,engulfingfarmlandswithfloodsandflatteningvillages.A．tookon B．droppedoff C．toreup D．leftbehind14．Hedecidedtodeclinethejobofferafterthelongcommuteagainsthowmuchhelikedthejob.A．valuing B．marking C．balancing D．relating15．WhenIseeskiesofblue,cloudsofwhite,thebrightblesseddaysandthedark________night,Ithinktomyself:whatawonderfulworld!A．themed B．sacred C．lighted D．a(chǎn)wed16．Anovelthatmakesanidealsourcematerialtobethebigscreenusuallyhasaclearplot,visualstoryandrelatablecharacters.A．a(chǎn)doptedto B．a(chǎn)djustedfor C．a(chǎn)daptedto D．a(chǎn)daptedfor17．Academicachievementsaremostvaluablewhentheycomealongwithasharpsenseofinquiry,aglobalperspective,andagenuinecommitmenttocommunityandothers.A．tohelp B．forhelping C．tohelping D．help18．He_________

hisself-controlandacalmmind________violence.A．conserved;infaceofthreaten B．conserved;underthreatofC．preserved;whenthreateningto D．preserved;whenthreatenedwith19．Renewableenergysourcestheheavilyonesproducedmorethan20%oftheworld’senergyin2024.A．replacedwith;polluting B．replacing;pollutingC．replacing;polluted D．substitutingfor;polluted20．Thevivarium(生態(tài)箱)________acollectionofliveamphibiansandreptilesincludingmanycritically________species,offeringauniqueopportunitytoseerareandbeautifulcreatures.A．houses;endangered B．houses;extinctC．represents;endangered D．represents;diedout21．Thisaccidentisagoodexampleofhowacompanyapublicscandalcanbeturnedintoanopportunitytowincustomers’trust.A．toinvolve B．involvingC．involvedin D．beinginvolvedin22．Withextratimebeforemydreadedappointmentwithmydentist,mygrandmotherdraggedmeintoanice-creamstore.A．tospare B．sparing C．whichspared D．beingspared23．ExpertshavepointedoutthatitwasthepowerfailuretheJapanesetsunami(海嘯)thatledtothecrisisattheFukushimaplant.A．followed B．havingfollowed C．following D．tofollow24．Oncemoreheopenedtothechapterwherethehorrifyingtruthmightbehidden,thepagesslowly,againsthopethatsomethingwouldleapoutathim.A．turning;tohope B．turning;hoped C．a(chǎn)ndturned;hoped D．a(chǎn)ndturned;hoping25．IwasdeeplymovedwhenIsawthelocalvillagerstheinternationalrescueteam,who,after10gruelingdaysofuncertaintyandwithalloddsagainstthem,twelveboystrappedinafloodedcavetosafety.A．a(chǎn)pplauding;took B．a(chǎn)pplauded;takingC．a(chǎn)pplaudingfor;took D．a(chǎn)pplaudingfor;taking26．Thefirst-yearexperienceisexciting,liberatingandterrifying,tohelpusgrowintoadulthood.A．a(chǎn)lliscombined B．a(chǎn)llcombined C．a(chǎn)lltocombine D．a(chǎn)llthatcombined27．children,despiteparents’effortstorefrainfromit,iscommonandcancausedamagetochildren’sself-esteem,contrarytothewishtobringouttheirpotentialandcapabilities.A．Comparedwith B．Tobecompared C．Havingcompared D．Comparing28．AccordingtoForbes,Ukrainemaysuffereconomiclossesamountingto$90billionasaresultoftheongoingwar,.A．includedthecostofrebuilding B．toincludethecostofrebuildingC．a(chǎn)ndthecostofrebuildingincluded D．thecostofrebuildingincluded29．Makesurethat________fortheaccidentlearnsagoodlesson.A．whoevertobeblamed B．nomatterwhoistoblameC．a(chǎn)nyonewhoistoblame D．thosewhoaretobeblamed30．Havingdeliveredthemessage,theowlpostmanflappeditswingsandflewtothewindow,ProfessorDumbledoreunfoldedtheletterandstartedreading.A．satwatching B．whereitsatwatchingasC．sittingandwatching D．itsatandwatchedasSectionBDirections:Afterreadingthepassagebelow,fillintheblankstomakethepassagecoherentandgrammaticallycorrect.Fortheblankswithagivenword,fillineachblankwiththeproperformofthegivenword;fortheotherblanks,useonewordthatbestfitseachblank.PushingpastherlimitsAt11:31amonJuly18,IreachedthesummitofMountMuztaghAtaintheXinjiangUygurautonomousregion.Standingat7,546metersattheageof18,IearnedthetitleofNationalMountaineeringAthlete.AsIstoodthere,tearsunexpectedlystreameddownmyface.Ourteamconsistedof17people,includingsevencoaches.Westartedtheclimbat3am,makingourwayupinfreezingtemperatures.Withtheshortageofoxygen,everystepwasastruggle-myheadthrobbed(陣痛)withpainandmystomachchurned(翻騰).Ifelt31Iwasonthevergeoffainting.32alackofappetite,Iforcedmyselftoeatsomething.Myfeetwereswollen,andIcouldhardlyfeel33.Afternearlythreehoursofstruggle,thesunbegantorisefrombehindthemountain,castingawarmglowonthesnow.Foramoment,Ifelt34(renew).Itriedtotakeoutmysnowgoggles,butIwastooweak,andmycoachhadtohelpme.Feelingexhausted,ItoldmycoachIwantedtoslowdown,buthenoticedmynosewasfreezingandmylipswerestiff.HewarnedmethatifIdidn’tkeepmoving,thecold35causemetogetsick,makingitimpossibletoreachthesummit.Iimmediatelyregainedmyfocusandpushedmyselftomove36(fast).Iwasthelastteammember37(reach)thetop,andthoughmyteammatescheeredmeon,Iwastootiredtorespond.Theviewwasbeautiful,butIwassoexhaustedthatIcouldn’tevenappreciateit.Mymindwentnumb,andeverystepduringthefinalstretchseemedlikeabattle.Butfinally,Ireachedthepeak.Isatdownonarock,dizzyandcrying.Cryingatthatmomentwasn’tjustaboutthephysicalpain.ItwasareleaseofalltheemotionsI38(bottleup).Itwasamixofexhaustion,awefornature,andasenseofconnectionwiththemountain.Iwasalsoproudofmyselfformakingittothetop.WhenIreturnedtothebusycity,surroundedbythenoiseofcarsandcrowds,Ifoundmyselfmissingthequietworldofthemountains.Imissedthecold,dampsleepingbags,thefaintnauseafromthelackoffood,andthestarsandmoon39(hang)overusintheearlyhours.Itwasonlyinthatstillness40Itrulyappreciatedthebeautyofthemountains.SectionCDirections:Fillineachblankwithaproperwordchosenfromthebox.Eachwordcanbeusedonlyonce.NotethatthereisONEWORDMOREthanyouneed.A.appetite

B.affected

C.secured

D.strays

E.offence

F.punishableG.fans

H.balancing

I.making

J.grieving

K.retrievePoliticiansarecompetinginananimal-welfarearmsrace.MichaelJacksonhadachimpanzee.JustinBieberhadacapuchin,untilitwasseizedbyGermancustomsofficials.Rihannahasbeenphotographedbottle-feedingababymonkey.Thetrioofstarswouldfindfew41intheBritishgovernment,whichproposednewrestrictionsonkeepingprimatesaspets.Britain’sanimal-welfarelawsarealreadyamongthemostcomprehensiveintheworld.Wildanimalsintravellingcircuseswerebannedbylawlastyear,butadecreasingpublic42forparadesofelephantsandtigers43onstoolshadalreadyputanendtothebusiness.Bythetimethebantookeffect,onlytwolicensedanimalcircuseswereleftinBritain,44upasadlittlezooofsixreindeer,fourcamels,fourzebras,tworacoons,azebu,amacawandafox.However,newlawsoffermorepoliticaladvantages.Politiciansareonlytoohappytogivefullreintothenation’spassionforanimals,forpet-friendlypoliciesarecheapandpopular.Inlastyear’selection,theConservativePartypromisedtohelpcouncilsreunite45withtheirownersbymakingitmandatorytomicrochipcats.TheLabourParty,ontheotherhand,promisedtobanthelive-boilingoflobstersinrestaurants.JamesDaly,aMemberofParliament,hasproposed“Gizmo’sLaw”,namedafteracat,thevictimofahit-and-runaccident,whichwascremated(火化)withoutitsowner’sknowledge.Thelawwouldobligecouncilsthat46deadanimalsfromtheroadsidetoreunitethevictimswiththeir47ownersratherthanbeinganonymouslycremated.Oneofthemostpopularproposals,whichhave48morethan250,000signaturesinthepetitions,isanew49ofpettheft,whichwouldrecognisethatdognappingfeelsmoreliketheabduction(綁架)ofachildthanthetheftofatelevision.Stealingapetisalready50byuptosevenyearsinprisonundertheTheftAct,andjudgescanalreadyaccountfortheemotionaldistresswhenpassingsentence.Still,itcouldbejustthethingforthenextmanifesto(宣言).III.ReadingComprehension(1*15+2*15=45分)SectionADirections:ForeachblankinthefollowingpassagetherearefourwordsorphrasesmarkedA,B,C,andD.Fillineachblankwiththewordorphrasethatbestfitsthecontext.Inthefuture,wemaynolongerneedchemicalpesticidestohelpcropsgrowhealthily.Chinesescientistshavediscoveredasmallmoleculecalledthe2’cADPRinplantcellsthatcantrigger.Thismoleculeholdsthepotentialtobedevelopedintoanewtypeofbiopesticide.“Oncethisbiopesticideisputintouse,itcanwhensprayedontotheplantsurfaceandabsorbedbytheplant,”WanLi,oneoftheresearchers,toldChinaDaily.“Basedonexistingscientificknowledge,itpotentiallycanbetodifferentplantsandcombatmanydiseases.”Wan’steamstudiesArabidopsisthaliana,aplantwidelyusedinbiologicalresearch.Withinitscells,therearearound150immunesensors,eachmonitoringfortypesof“enemies”,suchasvirusesandharmfulbacteria.Whenoneofthesesensorsathreat,itproduces2’cADPR.Thismoleculetheninitiatestheplant’simmuneresponse,helpingtheplantits“shield”ofdiseaseresistance.Inthis,fortheplant,2’cADPRisanexceptionallycapable“guard”thatcandefendagainstvariouspathogens(病原體).Scientificallyspeaking,2’cADPRiskeytotheplant’s“broad-spectrumdiseaseresistance”,whichmeansresistanceagainstmorethanonepathogenspeciesorthemajorityofracesorofthesamepathogen.Wansaidthatthesmallmoleculehasalreadybeenputintoproduction.Thenextstepistocontinueprovingitseffectivenessinthefieldandhopefullysoonputitintouse.,anotherstudyjointlyconductedbytheChineseAcademyofSciences,FudanUniversityandZhejiangUniversityhasasimilarbroad-spectrumimmunepathwayinrice.ThekeymoleculeinthiscaseispRib-AMP,whichisgeneratedbytheOsTIRproteininricecells.,forimmunesystems,it’snotalways“thestronger,thebetter”.Forbothplantsandanimals,itiscrucialtomaintain“immunehomeostasis(內(nèi)環(huán)境穩(wěn)定)”,athatallowstheimmunesystemtoeffectivelyfightoffpathogenswithoutordamagingitsowntissues.Accordingtothejointstudy,ricecellsachievethisbalancethroughanotherproteincalledROD1,whichinteractswithOsTIRtopreventitfromproducingtoomanypRib-AMPmolecules.Wannotedthattraditionalchemicalpesticidesharmtheenvironmentandhealthrisks.Butthesespecialmoleculesoriginatefromplantsthemselvesandarethereforesafewhenusedproperlyasbiopesticides.Thisoffersamoreeco-friendlytoprotectplantsfromdiseases.51．A．intensity B．immunity C．particularity D．flexibility52．A．respond B．occur C．a(chǎn)ppear D．function53．A．supplied B．a(chǎn)pplied C．opposed D．exposed54．A．general B．random C．specific D．intrinsic55．A．a(chǎn)ddresses B．detects C．poses D．creates56．A．holdup B．takeup C．putup D．bringup57．A．situation B．sense C．case D．scope58．A．strains B．versions C．variables D．groups59．A．Meanwhile B．Consequently C．Nevertheless D．Instead60．A．processed B．realized C．identified D．proved61．A．Besides B．Moreover C．However D．Therefore62．A．tendency B．balance C．process D．signal63．A．overestimating B．overrating C．overusing D．overreacting64．A．pose B．suggest C．ignore D．manage65．A．equivalent B．initiative C．preference D．a(chǎn)lternativeSectionBDirections:Readthefollowingthreepassages.Eachpassageisfollowedbyseveralquestionsorunfinishedstatements.ForeachofthemtherearefourchoicesmarkedA,B,CandD.Choosetheonethatfitsbestaccordingtotheinformationgiveninthepassageyouhavejustread.(A)EveryAprilIamtroubledbythesameconcernthatspringmightnotoccurthisyear.Thelandscapelooksdull,withhills,skyandforestappearinggrey.Myspiritsebb,astheydidduringanAprilsnowfallwhenIfirstcametoMaine.“Justwait,”aneighbouradvised.“You’llwakeuponemorningandspringwilljustbehere.”Andlook,on3MaythatyearIawoketoagreensoamazingastobealmostelectric,asifspringweresimplyamatterofflippingaswitch.Hills,sky,andforestrevealedtheirpurples,blues,andgreens.Leaveshadunfoldedanddaffodilswerefightingtheirwayheavenward.Thentherewastheoldappletree.Itsitsonanundevelopedlotinmyneighbourhood.Itbelongstonooneandthereforetoeveryone.Thetree’sdarktwistedbranchesstretchoutinunprunedabandon.Eachspringitblossomssofreelythattheairbecomesfilledwiththescentofapple.Untillastyear,IthoughtIwastheonlyoneawareofthistree.Andthenoneday,inabitofspringmadness,Isetouttoremoveafewdisorderlybranches.NosoonerhadIarrivedunderthetreethanneighboursopenedtheirwindowsandsteppedontotheirporches.ThesewerepeopleIbarelyknewandseldomspoketo,butitwasasifIhadcomeuninvitedintotheirpersonalgardens.Mymobile-homeneighbourwasthefirsttospeak.“You’renotcuttingitdown,areyou?”sheaskedanxiously.AnotherneighbourfrownedasIcutoffabranch.“Don’tkillit,now,”hewarned.Soon,halftheneighbourhoodhadjoinedmeundertheappletree.ItstruckmethatIhadlivedthereforfiveyearsandonlynowwaslearningthesepeople’snames,whattheydidforaliving,andhowtheypassedthewinter.Itwasasiftheoldappletreewasgatheringusunderitsbranchesforthepurposeofbothacquaintanceshipandsharedwonder.Icouldn’thelprecallingRobertFrost’swords:Thetreesthathaveitintheirpent-upbudsTodarkennatureandbesummerwoodsOnethaw(解凍)ledtoanother.Justtheotherday,Isawoneofmyneighboursatthelocalstore.Heremarkedhowthisrecentwinterhadbeenespeciallylongandcomplainedofnothavingseenorspokenatlengthtoanyoneinourneighbourhood.Andthen,helookedatmeandsaid,“Weneedtoprunethatappletreeagain.”66．Bysayingthat“myspiritsebb”inparagraph1,theauthormeansthat.A．hefeelsrelieved B．heischeerfulC．heisastonished D．hefeelsblue67．WhichofthefollowingisTRUEabouttheappletreeaccordingtothepassage?A．Nooneotherthantheauthorcaresabouttheappletree.B．Itgrowsonpublicproperty.C．ItisasourceoffreshfruitfortheneighbourhoodD．Itiscarefullyattendedtobytheauthor.68．Itcanbeinferredfromtheneighbour’swordsinthelastparagraphthat.A．Hehasapassionforgardening.B．Hewasconcernedaboutthesafetyofthetree.C．Heenjoyedthecompanyofhisneighbours.D．Hechangedhismindaboutpruningthetree.69．Whatisthebesttitleforthetext?A．TheBeautyofNatureB．TheSecretoftheAppleTree.C．UndertheBlossoms.D．TheSpringinMaine.(B)WHATISSEAFOAM?OceandecayandpollutioncontributetothisfrothyliningonEarth’soceansWORDSSCOTTDUTFIELDAfteraparticularlywindyday,theseaisoftenleftwithafrothyresiduecoveringitssurfacethatspansoverthesandyshoreline.Thesefrothytremorsareusuallymarinematterthathasbeenchurnedupbythewaves.Makingupthisfoamareparticlesofsalts,fats,proteins,algae,planktonandbacteriathatsurroundairbubblestoformalight,fluffysubstance.Thisfoamthatcollectsalongcoastlineshelpsrecyclethenutrientsoftheoceans.Theorganicmatterthataccumulatesinthefoamisusedontoland.Aswavesandwindtransportthefoam,theshorelinemicrobesandbacteriadecomposethecontentsofthefoamandreleasethenutrientsintothesurroundingenvironment.Thesenutrientscanhelpplantssuchasalgaeandseagrassesgrow,whichmarinelifefeedson.Incontrolledvolumes,seafoamassiststhenutrientcycleandimprovesthehealthofmarineecosystems.FOAMFORMATIONHowdoesdeadtissueproducethisfrothyconsistency?ORGANISMBREAKUPAsmarinelifedecays,proteinsandfatsfromtheirbodiesaredepositedinsmallmoleculescalledsurfactants.HYDROPHILICThewater-lovingendsofasurfactantmoleculeattractwaterandfaceawayfromthefoam.Thiskeepsthefoamatthewater’ssurface.MICELLETrappedairfromthewindandwavesformsasbubblesonthewater,surroundedbyalayerofsurfactants.Thesespheresarecalledmicelles.HYDROPHOBICThewater-fearingendsofthesurfactantmoleculefaceinwardanddon’tdissolveinwater,suchasgasesinair.FOAMThemovementofwateratthesurfaceenergizesthesurfactantstotrapairbubbles.Whenmultiplemicellescongregate,foamisproduced.ISITTOXIC?Seafoamisanaturaldispersalofnutrients,andcanprovideaprotectivemicroscopiccrustaceanlayerthatisbeneficialformarinelife,buttoomuchfoamcanbetoxic.Sometimesseafoambuildsupfollowinglargealgalbloomsattheshoreline.Thedecayingalgaereleasetoxinswhenthefoambubblespop,makingthemairborneandeasyforhumansandanimalstoinhale.Seafoamislikelytocauseirritationinasthmaticpeople.Whenseafoamisproducedfromthereleaseofpollutionintothewater,therecanbeoil,pesticides,sewageorothertypesofpollutioninit.Thistypeofseafoamisusuallydarkerincolourandismuchmoredetrimentaltomarinelifethatingested.Darkerseafoamismorelikelytocontainpollutants.70．WhichofthefollowingisNOTapotentialconsequenceofseafoammentionedinthearticle?A．Nutrientcyclingformarineecosystems.B．Thereleaseoftoxicgasesintotheair.C．Providinghabitatsformicroscopicanimals.D．Reducingoxygenlevelsintheocean.71．Whatisthemainroleofmicellesinfoamformation?A．Toreleasesurfaceintothewater.B．Totrapairbubblesusingalayerofsurfactants.C．Toensuresurfactantsremaindissolvedinwater.D．Tomakefoamdarkerincolorduetopollutants.72．Wheredoesthistextmostprobablycomefrom?A．Atouristbrochure. B．Ascientificjournal.C．Agovernmentreport. D．Aneducationalmagazine.(C)AstheNorthernHemisphereushersinthenewseason,acontagious(有感染力的)urgetodustoffcobwebsandtossoutclutteremerges.Springcleaning,adeepcleanseofone’shome,isatraditionrootedinsocietiesworldwide,withitsorigintracedbacktoancienttimes.Italsoholdssymbolicsignificance.Viewedasafreshstart,thetraditionsymbolizesthetransitionfromthedormantwinterseasontothevibrantgrowthofspring.Bypurging(清除)thehomeofaccumulateddebrisandorganizingitscontents,individualscreateacleanerlivingenvironmentandasenseofmentalclarityandfreshness.“Witheachsweepofthebroomandpolishofthesurface,wehonoratraditionthattranscendstime,unitinguswithgenerationspastinasharedpursuitofrenewalandrejuvenation(恢復(fù)活力),”saysDaniellePatten,directorofcreativeprogramsandcollectionsattheMuseumoftheHomeinLondon.Humanbehaviorisgreatlyinfluencedbythecyclesofnature.Inthecoldermonths,wehavelessenergytospareforchoressuchasdeepcleaning.We’renotbeinglazy;limiteddaylighttriggersthehormonemelatonin(褪黑素),whichmakesussleepy.“Melatonincausesustofeellessinclinedtorefreshourspac