9主题九自然生态与环境保护

主题九

自然生态与环境保护Part1主题核心词汇编者按

该部分内容详见于《教材主题梳理

背诵本》主题九，建议结合本主题内容进行学习和记忆。

Part2主题阶梯训练一阶

1基础能力检测篇一、语法选择主题：养殖牡蛎净化海水

词数：200难度：★★

建议用时：7minsSomepeopleseeoysters(牡蛎)asdeliciousfood．Butsomeraiseoysters____1____upthepollutedseawater．Amy,____2____15-year-oldgirl,isoneofthem．Shehaswonamasteroystergardenerprizethisyear．Shethinksoystersare____3____helpful．Theyareenvironmentalstars．()1．A．cleaning B．toclean C．cleaned()2．A．a B．an C．the()3．A．real B．reality C．reallyBAC“IknewnothingaboutoystergardeningwhenIstarted____4____2022．IlearnedallofthisafterIcompletedafreecourseaboutit，”Amysays．Thereusedtobelotsofoystersincoastalwaters．_______5_______theirnumbershavefallen．()4．A．in B．on C．at()5．A．So B．But C．OrABThisisbecauseofsomenatural____6____．Oystergardeningisawaytohelp．“Youdon'thavetodoalottotakecareof____7____oysters,buttheinfluencetheyhaveontheenvironmentishuge,”Amysays．()6．A．disaster B．disasters C．disasters'()7．A．you B．your C．yoursBBDuringtheoystergardeningseason,Amyandhermomgotothebeach．ThereAmyhasninecages(笼子)．“____8____aweekIgooutthere,”shesays．Shepullsthecagesfromthewatertocheckconditionsoftheoysters．()8．A．Once B．One C．FirstAThisspring,Amy'soysterswillbe____9____enoughtobecollected．Sofar,Amy____10____morethan1,500oysters．Hersmallactwillsurelymakeabigdifference．

(2025河北改编)()9．A．big B．bigger C．biggest()10．A．raises B．raised C．hasraisedAC二、完形填空主题：环保经历

词数：203难度：★★

建议用时：7minsMynameisDaniel．WhenIwas7,Ifoundsomeplasticbottlesonariverbank．IfeltworriedbecauseIknewplasticbottlesandotherrubbishcouldbe____1____toanimalsinrivers．NowI'm13,andIworktokeeprubbishoutofrivers．()1．A．good B．helpful C．harmful D．usefulCTheTennesseeRiveris____2____pollutedwithplasticandotherrubbish．AndIwanttodosomethingtohelpstopmore____3____．Idosome____4____cleanupswithothers．Sometimeswegotoplacesthatwecanonlyreachbyboat．Weoftenfindplentyof____5____,suchasbrokentoysandplasticbags．()2．A．badly B．hardlyC．carefullyD．warmly()3．A．information B．communicationC．attention D．pollution()4．A．sea B．lake C．river D．ocean()5．A．rubbish B．fruit C．fish D．sharksADCADoingcleanupsmakesmereally____6____．IknowI'mmakingadifferenceand____7____lives—notjustanimallives,buthumanlivesaswell．Whathappenstothemhappenstous．()6．A．nervousB．bored C．happy D．anxious()7．A．studyingB．saving C．creating D．killingCBLastyear,IsetuptheCleanupKidswithmyfriendstocallonkidsallaroundtheworldto____8____rubbish．Peopletakepicturesoftherubbishandsendthemtous．Wewill____9____ourgoalof1,000,000piecesattheendofthismonth．()8．A．pickup B．lookforC．throwaway D．workout()9．A．find B．set C．achieve D．missACWe'renevertooyoungto____10____theworld．Kidsareasmallpartofthepopulation,butweare100%ofthefuture．

()10．A．discoverB．knowC．reachD．changeD三、短文填空主题：濒危动物西伯利亚虎

词数：208难度：★★

建议用时：7mins请从方框内选择适当的词并用其正确形式填空，使文章完整连贯。注意每空一词，每词仅用一次，有两词为多余选项。howeveralthoughofflittlecommonupwhatreasongrowbeanimalhowTheSiberiantigeristhelargestofalltigers．Anadultmalecan1________upto3．3metersinlengthandweighasmuchas300kilograms．2__________Siberiantigersarestrong,theyareoneofthemostendangeredanimals．Therearelessthan500ofthesebeautiful3____________stilllivingintheworld．Longago,Siberiantigerswere4___________allovertheNortheastAsiaandtheRussiaFarEast．5___________,todaytheyarefoundmainlyalongtheChinese-Russianborder(边境)．Whenpeoplebuildcitiesandcutdowntrees,itmeansthetigershave6________foodandspacetolivein．That'sthemain7__________whythenumberoftheSiberiantigersisreducing．howeveralthoughofflittlecommonupwhatreasongrowbeanimalhowgrowAlthoughanimalscommonHoweverlessreasonInrecentyears,Chinahasset8________naturereserves(保护区)andbeguntoprotecttheSiberiantigers．There9________alsoplentyofSiberiantigersinzoos．Itishopedthatsomeofthesetigerscanreturntothewild．Ofcourse,theywouldneedtolearn10________________tohuntandtakecareofthemselves．AnadultSiberiantigerrequiresupto100squarekilometersofforesttolivein．Atpresent,thereisnotenoughforestavailable(可用的)tosupportsomanySiberiantigersinthewild．(2025黑龙江龙东地区改编)howeveralthoughofflittlecommonupwhatreasongrowbeanimalhowuparechohowose1._______________ 2._______________3._______________ 4._______________5._______________ 6._______________7._______________ 8._______________9._______________ 10._______________growAlthoughanimalscommonHoweverlessreasonuparechohowose一、阅读理解(A篇)主题：保护地球的小建议

词数：183难度：★★

建议用时：6minsBTheearthisourhome．Therearesomewaysthatyouandyourfamilycanusetohelptheplanetandmakeadifference．①Uselesswater．Takeshortershowers．A10-minuteshower orafullbathtub(浴缸)canwastealotofwater．Also,turnoffthetapasyoubrushyourteeth．

Uselesswaterinthegardenandlettheraincleancars．②Avoidwastingfood．Don'ttakemorethanyoucaneat．Aboutone-thirdoffoodinsomeareasisthrownoutorwasted．③Careandrepair．Takegoodcareofthingsyouownandtheywillgetalonglife．Iftheybreak,trytorepairthem．Ifyoucan'trepairthem,callarepairman．ProducingnewgoodswilladdCO2totheair．④Usereusablebags．Useplasticandpaperbagsmorethanonce．Whenyougoshopping,useclothbagsinsteadofplasticbags．⑤Usefewerpapercups．Usereusablecupsinsteadofthrowawaypapercupsifnecessary．Ifyouusemorepapercups,youwillproducemorerubbish．(2025福建改编)()1．Whatcanyoudotosavewater?A．Takeshortershowers． B．Batheinafullbathtub．C．Stopusingthetap． D．Cleancarseveryday．()2．Whatshouldyoudowhensomethingbreaks?A．Throwitaway． B．Repairitifpossible．C．Producenewgoods． D．Takegoodcareofit．AB()3．Whatdoesthewritersuggest?A．Usingfewerpapercups．B．Usingmoreplasticbags．C．Usingthrowawaypapercups．D．Usingpaperbagsjustonce．()4．Whichwaysareaboutreusingthings?A．①② B．①⑤ C．②③ D．④⑤()5．Inwhichpartofanewspapercanyouprobablyreadthetext?A．Culture． B．Health．C．Sports．D．Environment．ADD二、阅读理解(B篇)主题：防治塔克拉玛干沙漠

词数：228难度：★★★

建议用时：8mins①TheTaklimakanDesertisthelargestdesertinChina．Itisabout337,600squarekilometersintheTarimBasininXinjiang．Sandstormsoftenhappen,andthemovingsandseriouslyinfluencesthelivesoflocalpeopleandthenaturalenvironmentinthisarea．Therefore,theChinesegovernmentandpeoplehavebeenmakingmuchefforttocontrolthedesert．Herearesomeofscientificandeffectivewaystheyhaveused．②Oneofthemainwaysistobuildatreebelt(防护林带)aroundthedesert．Bytheendof2023,a2,761-kilometer-longgreenbelthadalreadybeenbuiltaroundit．In2024,thelastpartofthebelt,285kilometers,wasfinished．It'sabout3,046kilometersintotal．Thebeltliesasastrongwallagainstthespreadofthedesert．③Biologicalwaysarealsowidelyused．Forexample,peoplegrowspecialplantsthatcangrowwellwithlittlewater．Theseplantsholdthesandandreducesandstorms．Atthesametime,theycanalsobringcertaineconomic(经济的)benefitstolocalpeople．④Greatchangeshavealreadytakenplace．Thenaturalenvironmentaroundthedeserthasbeenimprovedgreatly．Thelocaleconomyhasalsobeendevelopedrapidly．Thesuccessinthecontrolofthisdesertshows:aslongaswehaveastrongwillandusescientificmethods,wecanprotecttheenvironmentandbuildabetterfuture．(2025山东临沂改编)()1．(创新题·写作手法)Howdoesthewriterstartthepassage?A．Bylistingfacts． B．Bygivingexamples．C．Byaskingquestions． D．Bytellingstories．()2．Whatdoestheunderlinedword“effective”probablymeaninParagraph1?A．Expensive． B．Simple．C．Useful． D．Interesting．AC()3．Whydopeoplegrowspecialplantsinthedesert?A．Tosavewaterinthedesert．

B．Tomakethedesertmorebeautiful．C．Topreventsandstormsandgeteconomicbenefits．D．Toprovidefoodforanimalsandmakemoremoney．C()4．(创新题·文章结构)Whichofthefollowingbestshowsthestructureofthepassage?

A()5．Whatisthebesttitleforthepassage?A．TheLargestDesertinChina:TheTaklimakanDesertB．ScientificWaystoControltheTaklimakanDesertC．HowSandstormsAffectPeople'sLivesinXinjiangD．TheEconomicBenefitsofTreeBeltsinDesertAreasB三、阅读理解(C篇)主题：名山介绍

词数：300难度：★★

建议用时：7mins配对阅读。左栏是五个人的信息介绍，右栏是七座名山的介绍，请为每个人选择一座他们去过或见过的山，并将其字母编号填写在题号前的括号内。选项中有两项为多余选项。A．

MountDanxiaItislocatedinShaoguan，GuangdongProvince，notfarfromGuangzhou．ItisfamousforitsDanxialandform．B．MountEmeiItisamountaininSichuanProvince．Peopleliketogotheretowishforgoodluckandhappiness．C．MountFujiItisthehighestmountaininJapanat3776．24meters，notfarfromTokyo．Thetopiscoveredbysnowforseveralmonthsoftheyear．D．QomolangmaWith8848．86metershigh,itisthehighestmountainintheworld．Itisanhonorforclimberstogettothetopofit．E．MountTaiItisinShandongProvince．Everyyear，millionsofpeoplefromhomeandabroadgotothetopofitandwatchthesunrise．F．

MountXiqiaoItisoneofthefourfamousmountainsinGuangdongProvince．Itisafavoriteplaceforthelocalpeopletowishforgoodluck．G．

TheAlpsTheAlpsarethehighestandmostextensivemountainrangesysteminEurope．Themountainsarepopularwithskiinglovers．()1．JunkoTabeiisafamousmountainclimberfromJapan．Shewasthefirstwomantoreachthetopoftheworld'shighestmountainin1975．()2．Mr．Wanglovesskiing．Lastwinter,hewenttoEuropewithhiswifeandenjoyedthemselvesinaskiingparkinFrance．()3．Mr．LinlivesinGuangzhou．HeisinterestedinDanxialandformandwatchingthesunrise．LastSunday,ittookhim2．5hourstodrivetothemountain．DGA()4．JudywenttoJapanforavacationlastyear．ShelivedinahotelinTokyo．Shecanseeabeautifulsnow-cappedmountain．()5．Mr．ChenisabusinessmaninDongguan,GuangdongProvince．DuringtheSpringFestival,hedrove3hourstothemountaintowishforhisfamily．CF一、语法选择主题：

山妈妈保护自然环境的故事

词数：243难度：★★★

建议用时：8minsSomewheredeepintherainforestsandmountainsofColombiathere'saveryspecialwoman．Shewearsadressmadeof____1____．

()1．A．leaf B．leaves C．leafsBShehasaringofwildflowersonherhead．HernameisMotherMountain．Herjobistolookafternatureandtheenvironment,andtomakesurethatnoone____2____them．Theanimalsoftherainforestsandmountainsloveher．Sheistheirfriend,andtheyknow____3____they'resafewithher．()2．A．harmB．harms C．harmed()3．A．that B．whether C．howBAOnedayamancameintotheforest．Hesawabear．Ashewasgettingreadytocatchitwithanet,MotherMountainsuddenlyappearedandcaught____4____netinherstronghands．Themanturnedandlookedather____5____surprise．()4．A．a B．an C．the()5．A．in B．to C．ofCA“Whyhaveyoucomeintotheforest?”sheasked．“____6____meatformychildrentoeat,”themansaid．“Youcan'tkillanyanimals____7____theenvironmentisimportantforus!”MotherMountainsaid．_______8_______hergreeneyesturnedredandshesaid,“Gettosleepnow．Thenwakeupandsee!”()6．A．Get B．Getting C．Toget()7．A．so B．if C．because()8．A．Slow B．Slowly C．MoreslowlyCCBThemanfelltothegroundinadeepsleep．Thebear____9____byMotherMountainanditmadeasoftnoise．Itseemedtobesaying“Thankyou,MotherMountain．”()9．A．touched B．istouchedC．wastouchedCThemensleptforseveralhours．Thenhewokeupandlookedround．Hedidn'tseeMotherMountain．Heonlysawhowbeautifultheforestand____10____animalswere．Hewalkedhomeandpromisednevertohurtanimals．()10．A．its B．itC．itselfA二、完形填空主题：AI系统助力保护野生动物

词数：229难度：★★★

建议用时：8minsNaturereservesprovidethebesthomeforwildanimalswithwarmweather,water,plantsandwetlands．Now,theAIsysteminreservesplaysanimportantroleinstudyingwildlife．Insteadofusingbinoculars(望远镜),peoplecan_______1_______animals'activitiesonbigscreens．()1．A．keep B．support C．watch D．leadCTheAIsystemcanbevery___2____.First,itcanrecognizedifferentanimalsbytheirtails,feetorbeaksand____3___theirnumbers．Second,itcanrecordanimals'actionsalldayandnight,whichhumanscouldn'tdobefore．Italsonoticesunusualbehaviors．Forexample,ifananimalmoves____4____orliesstillfortoolong,thesystemwillwarnresearcherstohelpquickly．Besides,itkeepsunauthorized(未经许可的)peopleoutofprotectedareasandteachesvisitorsaboutwildlife．()2．A．helpful B．central C．local D．direct()3．A．add B．count C．solve D．reduce()4．A．loudly B．widely C．luckily D．strangelyABDButtherearestill_______5_______tobesolved．Forexample,sometimestheAIsystem_______6_______oneanimalwithanother．Itmightmistakeplantsforanimalsandprovides_______7_______informationforresearchers．

()5．A．surprises B．changes C．secrets D．problems()6．A．wakesup B．mixesup C．getsoff D．fallsoff()7．A．wrong B．similar C．valuable D．correctDBAAlso,becausethesystemisn'tusedeverywhereinreserves,peoplestillneedto_______8_______someareasthemselves．ToimprovetheAIsystem,naturereservesareworkingwithhigh-techcompaniestomakethesystembetterandcovermore_______9________．()8．A．check B．fill C．leave D．build()9．A．trades B．numbersC．areas D．standardsACAlthoughtheAIsystemisn't_______10________,itworksfasterandprotectsanimalsmoreeffectivelythanoldtools．Mostimportantly,ithelpskeepthenaturalecosysteminbalance．()10．A．modern B．perfect C．convenient D．usefulB三、短文填空主题：

清理海洋垃圾

词数：243难度：★★★

建议用时：8mins请从方框内选择适当的词并用其正确形式填空，使文章完整连贯。注意每空一词，每词仅用一次，有两词为多余选项。costmillionlandwhencertainhowpollutionfordecideitoceanuseful“Itcan'tbedone．”BoyanSlatheardthisoverandoveragainwhenhefirstsuggestedawaytocleanup1____________oftonsofplasticpollutionintheoceans．SlatwasonadivingtripinGreecethreeyearsago2_________hewastroubledbyplastic．“Thereweremoreplasticbagsthanfishes，”hesaid．“ThatmomentIrealizeditwasahugeproblemandenvironmentalproblemsare3_________thebiggestproblemswewillface．”costmillionlandwhencertainhowpollutionfordecideitoceanusefulmillionswhencertainlyAtthattime,the17-year-oldSlatdecidedtostudyplastic4____________aspartofahighschoolproject．Soon，Slatlearnedthatnoonehadyetthoughtof5________waystocleanupalltherubbish．Mostpeoplejustwantedto“fish”uptheplasticusingshipswithnets．Butthiswaymightneedmorethan1,000years，6________toomuch，andleavesealifealongwiththerubbish．

costmillionlandwhencertainhowpollutionfordecideitoceanusefulpollutionusefulcostSlat7____________toavoidtheseproblems．Hedevelopedasolar-poweredsystemusingamovingplastictube(管)whichwillgoaroundtherubbishandcollect8________．Windandwaveswillpushtherubbishtothetube．Ashipwillpickuptherubbishandtakeitbacktothe9________．

Slatorganizedateamofvolunteers10______________theOceanCleanup，whichhasabout100members．Overthenextthreetofouryears，Slatwillcontinuetotestwhetherhisprojectisgoodenoughornot．costmillionlandwhencertainhowpollutionfordecideitoceanusefuldecideditlandfor1._______________ 2._______________3._______________ 4._______________5._______________ 6._______________7._______________ 8._______________9._______________ 10._______________millionswhencertainlypollutionusefulcostdecideditlandfor四、阅读理解(A篇)主题：五大淡水湖

词数：247难度：★★★

建议用时：9minsAlexandhisclassmatesareworkingonaprojectabouttheGreatLakes．Hereistheinformationsheettheyhavemade．Part1:FactsTheGreatLakes—Ontario,Huron,Michigan,ErieandSuperior—arefivefreshwaterlakes．TheybordereightUSstatesandtheCanadianprovinceofOntario．Part2:Comparison●LakeOntarioThislakehasthesmallestsurfaceareaat7,336squaremiles．Threedams(大坝)controltheflowofwaterdownstreamandincludelocks,soboatscanenterfromtheAtlantic．●LakeHuronThisisthesecondlargestlakebysurfaceareainthesystemandhometoManitoulinIsland,theworld'slargestfreshwaterisland．●LakeMichiganItisconnectedtoLakeHuronbythefive-mile-wideStraits(海峡)ofMackinac,thoughtheyarestillseenastwoseparatebodies．●LakeErieWithadepthof64metres,thisisgenerallythewarmestoftheGreatLakes．Butitalsogetsfrozenmorequicklythantheothers．●LakeSuperiorAt406metresdeep,thedistancefromthelake'ssurfacetoitsdeepestpointisaboutthesameasthelengthoffourfootballfield．Part3:______▲______Coveringanareaof94,250squaremiles,thesehugebodiesofwatertakeupmorethanone-fifthoftheworld'stotalfreshwater．TheGreatLakesprovidedrinkingwaterformorethan40millionpeopleandimportantshippingroutesformorethan800oceanships．Theykeeparichecosystemforfishingandagricultureandalsosupportwildlife,thenationaleconomyandtheenvironment．(2025江苏扬州改编)()1．HowcanboatsenterLakeOntariofromtheAtlantic?A．BycrossingManitoulinIsland．B．BycrossingLakeSuperior．C．BysailingthroughtheStraitsofMackinac．D．Bypassingthroughlocksinthedams．D()2．Alexwantstotryicefishingasearlyaspossible．Whichlakewillhemostprobablychoose?A．LakeSuperior． B．LakeErie．C．LakeMichigan． D．LakeHuron．()3．Whichofthefollowingcanbeputin“________▲________”?A．Value． B．Change．C．Protection． D．Development．BA()4．WhichofthefollowingisTRUE?A．Alexisageographyteacher．B．TheGreatLakesareinAmerica．C．LakeOntarioisthesecondsmallest．D．LakeSuperioris406metresdeep．()5．Whatkindoftextisthispassage?A．Anotice． B．Areport．C．Adiary． D．Anovel．DB一、完形填空主题：服装垃圾污染

词数：263难度：★★★★

建议用时：10minsDeareditor,Fashionisthesecondmostpollutingindustry．Peoplejustkeeponbuyingnewclothesandthrowingthemawayaftertheyarewornonlyafewtimes．Idon'tthinkpeopleknowhowmuchclothingpollutionis____1____ourplanet．IknowIcan'trequestpeopletothinkinthesamewayasIdo,butitis____2____forpeopletoknowthefact．Idecidetowritethe____3____becauseIhopemorepeoplewillreaditandmakeaneffort．()1．A．developing B．improvingC．repairing D．harming()2．A．simple B．wrong C．necessary D．polite()3．A．diary B．letter C．book D．posterDCB____4____,thebeachesofanAfricancountry—Ghana,arebadlypollutednow．Thebeachesarecoveredwithclothingwaste．Everyweek,millionsofclothesfromallovertheworldare____5____tosecondhandclothingmarkets．Butabout40%ofthemleavethemarketsaswaste．However,thecityisnearthesea,sothere'snotenough____6____forlandfill(垃圾填埋)．

()4．A．Sadly B．Luckily C．LastlyD．Interestingly()5．A．lifted B．pushed C．sent D．invented()6．A．space B．water C．air D．informationACATheCitarumRiverinIndonesia____7____waterformillionsofpeople．Lotsofpeopleuseitfordrinkingwater．However,therearemanyclothingfactoriespouringtheirwasteintoit．Thisgreatlydoesharmtothepeoplewho____8____theriver．()7．A．holds B．provides C．buys D．wastes()8．A．dependon B．fallintoC．blowout D．takeoffBAAswellasthis,thewaterintheAralSeawasusedtogrowcottonforyears．Nowtheseahasalmostdisappeared．Ittakes2,700liters(升)watertogrowenoughcottontomakeone____9____．Tosatisfyourhopeformorenewclothes,wearepollutingtheirwaterandpeopletherearegetting____10____．Thisisnotright．Ihopeyoucanbringmyvoicetomorepeople'sattention．Jenny(2025黑龙江齐齐哈尔改编)()9．A．book B．basket C．T-shirt D．eraser()10．A．strongB．crowded C．lively D．sickCD二、短文填空

主题：减少食物浪费

词数：265难度：★★★★

建议用时：10mins请从方框内选择适当的词并用其正确形式填空，使文章完整连贯。注意每空一词，每词仅用一次，有两词为多余选项。

sufferuglyhoweverinasprettyweencouragethrowcanlistconditionFormanypeoplelivinginbigcities,theyoftenhaveenoughfoodtoeat,sotheydon'trealizehowmuchfoodtheyactuallywaste．1__________,forpeoplelivinginsomepartsoftheworld,theydon'thaveenoughfoodtoeat．Theystill2__________fromhunger．Asanindividual(个体),whatcanwedotosolvetheproblemoffoodwaste?sufferuglyhoweverinasprettyweencouragethrowcanlistconditionHoweversufferFirstly,welcome“uglyfood”．Asamatteroffact,foodwastestartsonfarms．Onthefarm,farmersusuallychoose3________vegetablesandfruitandsendthemtothenearbysupermarkets．Thenthoseuglyvegetablesandfruitoftengotowaste．4________fact,uglyvegetablesandfruitareofthesamequalityasthosebeautifulones．Sowe5________chooseuglyvegetablesandfruitwhichoftengetleftbehindonfarmsbutaresafetoeat．

sufferuglyhoweverinasprettyweencouragethrowcanlistconditionprettyIncanSecondly,buylocalfood．Nowallovertheworld,manycities6_____________peopletobuylocalfood．Itisagoodideabecausealotoffoodwastehappensduringtransportation．Ifthestorage(储存)7________________forfreshfoodarenotgoodenough,alotoffoodwillgobadalongtheway．Itmeansbeforereachingsupermarkets,thefoodhastobe8____________away．Sobuylocalfood,andyoucancutfoodwaste．sufferuglyhoweverinasprettyweencouragethrowcanlistconditionencourageconditionsthrownThirdly,makeshoppingplans．In9________dailylives,wecanplanourmealsandbuyonlywhatweneed．Bymakingashopping10________andstickingtoit,wecanavoidoverbuyingandwastingfood．

Tocutfoodwasteistosavetheearth．Let'stakeactiontocutfoodwasteandmaketheworldabetterplace．sufferuglyhoweverinasprettyweencouragethrowcanlistconditionourlist1._______________ 2._______________3._______________ 4._______________5._______________ 6._______________7._______________ 8._______________9._______________ 10._______________HoweversufferprettyIncanencourageconditionsthrownourlist三、阅读理解(B篇)主题：分解塑料废物新方法

词数：270难度：★★★★

建议用时：12minsPlasticwasteisanincreasinglyimportantproblem．Uptonow,only9%oftheplasticseverproducedhavebeenrecycled．Therestremainontheearthforhundredsofyears．Theywashouttotheoceantobecomerubbish,harmwildlifeandbreakdownintosmallplasticsthatcanenterthehumanbrainandotherpartsofourbodies．Recently,scientistshavedevelopedanewmethodtobreakdownplasticwastewiththehelpofwaterintheair．Theresearchersmixedaspecialmetalandactivatedcarbon(活性炭)withPET,themostcommontypeofpolyester(聚酯)plastic．Thentheyheatedthemixture．Afterashorttime,thisbrokethechemicalconnectionsinthepolyester．Next,whentheteamleftthematerialintheair,themixtureturnedintoTPA,apolyestermaterial,andacetaldehyde(乙醛)，anindustrialchemical．Finally,thesevaluablechemicalmaterialswererecycled．Afterthefirstsuccess,researcherstestedthemethodondifferentplasticsandfounditworkedonpolyesterplasticonly．Thatmeanttheydidn'tneedtoseparatedifferentkindsofplastics．Also,whentheyaddedwater,itstoppedworkingbecausetheamount(数量)ofwaterintheairwasjustright．Theteam'snextplanwillbetousethemethodwidelyinindustry．“It'shopefulthatourtechnologycanhugelydiminishplasticpollution,lowertheenvironmentalfootprintofplasticsandhelpmaterialsbereusedinsteadofbeingthrownaway,”researcherssaid．“It'saleap(飞跃)towardsacleanerandgreenerfuture,anditshowshowcreativechemistrycansolveworldchallengesinawaythatjoinshandswithnature．”(2025四川泸州改编)()1．WhatharmofplasticsismentionedinParagraph1?A．Pollutingthesea．B．Warmingtheair．C．Reducingwetlands．D．Causingwildfire．A()2．Howdidtheteamdotheresearch?①Heatthemixture．②Leavethemixtureintheair．③Recyclethechemicalmaterials．④Mixaspecialmetal,activatedcarbonwithPET．A．④→②→①→③ B．④→②→③→①C．④→①→②→③ D．④→①→③→②C(