高中英語閱讀理解專項練習(xí)

（一）InthewarmwatersoftheCaribbean，boxjellyfishcarefullydodgetherootsofmangroveswhilehuntingforfood.Whetherthewaterisclearornot，thetinycreaturesavoidbumpingintotheroots.Buthowdotheyfigureouthowtoswimaroundtheroots，evenwhenlowwaterqualitymakesthemdifficulttoseewithsimpleeyesandlackofacentralnervoussystem.“Theanswerwas，theycanlearnthis，”saysAndersGarm，abiologistattheUniversityofCopenhagen．Tobetterunderstandtheboxjellieslearningabilities，scientistsconductedsomeexperiments.Theresearcherslinedtheinsideofabucketwithimagesofalternatingverticalstripes.Inonescenario，thestripeswerehigh-contrastblackandwhite，whichwasdesignedtoresemblemangroverootsinclearwater.Inanother，thestripesweregrayandwhite，whichwasmeanttoresembletherootsinmurkywater．Asexpected，inthebucketwiththehighcontrast，thejellieseasilyavoidedcollidingwiththewall.Inthemurkywater，however，thecreaturesinitiallybumpedintothewall.Butittooklessthaneightminutesforthemtoadjusttheirbehavior.Inafinalscenario，theyplacedthejellyfishintoabucketwithjustagraywall.Thecreaturesrepeatedlycollidedwiththewallandneverchangedtheirbehavior．“Itwasonlywhentheyhadacombinationofvisualandmechanicalstimulationthattheywouldactuallylearnsomething，”saysJanBielecki，anauthoroftheexperiments．Next，theteamremovedtherhopalia-fourcentersofvision-fromthejellyfishandputtheminadish.Theygavethecellsasmallelectricalpulsetosimulatethejellyfishbumpingintoamangroverootwhileexposingthemtostripedimages.Injustaboutfiveminutes，thecellsappearedtomaketheconnectionbetweenthetwooccurrencesandbegansendingsignalsthatwouldcauseajellyfishtoswimintheoppositedirection．Basedontheresultsoftheexperiments，scientistsbelievetherhopaliaarewherelearninghappens.Ifthatstrue，scientistsarestillleftpuzzlingoverhowthefourrhopaliaworktogethertomakeupafunctioning，brain-likesystem．1.WhatmakestheCaribbeanboxjellyfishlivesafelyaroundmangroves？A.Theclearwater．

B.Thesufficientfood．C.Theirlearningability．D.Theirnervoussystem．2.Whatdidscientistsfoundinexperiments？A.Theboxjellyfishcanlearnatafastspeed．B.Theboxjellyfishcantelldifferentcolours．C.Theboxjellyfishcanlearnwellinclearwater．D.Theboxjellyfishcanlearneachothersbehavior．3.Whyweretherhopaliaremovedfromthejellyfish？A.Toproveitsremarkableeyesight．B.Totestthevisionseffectonitslearning．C.Toexamineitsresponsestostripedimages.D.Toexploremangroverootsfunctiononitslearning．4.Whatremainsapuzzletoscientists？A.Therhopaliasroleinjellyfishlearning．B.Theworkingmechanismoftherhopalia.C.Thebrain-likeappearanceoftherhopalia．D.Thelayoutoftherhopaliainsideboxjellyfish．（二）BornandraisedintheJorhatdistrictofAssam，India，MahanChandraBorah，sonofafarmer，wasacuriousreader.Asayoungboy，Mahanoftenhelpedhisfatheroutinthefields.“WorkingwithhiminthefieldsiswhereIlearntallIknowaboutfarming，”hesays.“Ourfamilywasquitehumbleandwedidnothavealotofmoney.SoIhadtostopschoolearlyandgrewrice.”WhileMahangrewrice，hefoundpeoplewereunawareofhundredsofvarietiesofriceinhiscountry.“Thisunawarenessisleadingtotheirextinction，andIwantedtodosomethingaboutit，”recallsMahan.TheresultwastheformationofAnnapurnaRiceLibrary—ahubofnotonlypreservedindigenousseedsbutalsoallthings‘rice．Talkingabouthispersonalfavouritetypeofrice，Mahansays，“Whileallthesericevarietiesaremyfavourite，BhaoDhanisverygood.Itisverytoughinnatureandcanadapteasilytotheflood-pronenatureofAssam.Itcansurvivelongperiodsofbeingsubmergedinwater.”However，theloweryieldperhectarehasbeenafactorasthefarmersdonotprefertogrowtherice.Mahanhasmanagedtocollectandpreserve500+varietiesofindigenousricevarieties.ThelibraryisalsoagenebankofindigenousseedsthatarefastdisappearingnotonlyfromAssambutalsofromotherpartsofthecountryaswell.Besides，thelibraryisopenforanyonetovisitandtakeseedsoftherice.Farmersarefreetotaketheseedsandtrytogrowthemattheirfarms.Forthelast15years，Mahanhasoperatedhislibraryonhisownfunds.“MyfieldsproduceenoughformyfamilyandIselltheexcessinthemarket.LackoffundshasbecomeanissuebutIammanagingsomehowandIamsurethelibrarywillstayalive，”hesays．1.WhatcanbelearnedaboutyoungMahan？A.Helearnedhowtogrowrice．B.Hereceivedagoodeducation．C.Helivedhappilywithhisfather.D.Hedevelopedinterestinfarming．2.WhatledMahantoestablishAnnapurnaRiceLibrary？A.ThevarietiesofriceinIndia．B.Theextinctrice-growingtechniques．C.Thepublicignoranceofdifferentrice．D.Thegreatdemandforindigenousseeds．3.Whymightsomericefaceextinction？A.Itproducesbadly．B.Itcantstandflood．C.Itdoesnttastegood.D.Itconsumesmuchwater．4.WhatcanbestdescribeMahan？A.Atoughlibrarian.

B.Apassionatefarmer.C.Acuriousreader.

D.Ariceseedsaver.（三）AlthoughthebirthofluxurytimepiecesisoftenassociatedwithGenevaandBasel，thecradleofSwisswatchmakingliesdeepinValléedeJoux，avillageSwitzerlandsJuraMountains.Since1748，manywatchfarmshavebeenproducingworld-renownedwatchbrands，includingAudemarsPiguet，andDavidCandaux.Now，mostofthesewatchmakingfarmsarenolongerfunctionalbuttheirmultimilliondollarlegaciesseemtobetellingtheirlegends．Piguet，a10th-generationwatchmaker，sayshisfamilywasoneofthosewhofledfromFrancetoSwitzerlandinthemid-1500s.ManyofthemmovedtotheJuraMountainsasfarmers.Meanwhile，others，manyalreadyskilledwatchmakers，flockedtothevillage，transformingthelocalwatchmakingindustry.Withamonopolyofnaturalresourcessuchasaflowingalpinelake，richirondeposits，andgentian，watchmakingrapidlydevelopedandflourishedinValléedeJoux.Bythe17thcentury，withthebirthofindustrialization，thevalleysfarmerswouldsendyoungfamilymemberstoGenevatostudythewatchmakingtradetohelpfetchextraincomeduringtheregionsharshwinters.Asaresult，farmershousesgraduallychangedtoaccommodatetheirduallivesbecausenaturallightwasidealforthoseyoungwatchmakerstodesignandmakeproducts.“WatchmakingwasandisareallyimportantpartoftheSwissidentity，eventhoughonlyasmallregioninthecountryisinvolved.Ourwatcheshaveareputationfortoplevelqualityandenjoypopularityallovertheworld，”saysNathalieVeysset，awatchstrategist.Since2020，thecraftsmanshipofmechanicalwatchmakingandartmechanicshavebeenlistedontheUNESCOlistoftheIntangibleCulturalHeritageofHumanity．Theindustryalsofacesthechallenges，fromglobalizationtosourcingpreciousmaterials.Forexample，thediscoveryofquartztechnologyinthe1970sand1980shooktheentiretrade.ThenumberofSwisswatchcompaniesshrankfrom1，600to600，causingathoughtforacraftencasedinheritage.“Thecompaniesthatsurvivedthosecrisesprovethataslowartisancraftcankeeppaceinahurriedhigh-techworld，”saysCarleneStephens，atechnologycuratorattheSmithsonian.1.WhatledwatchmakingtodevelopfastinValléedeJouxatfirst？A.Theuniquenaturalresources．B.TheshortdistancefromFrance．C.Theincreaseinlocalpopulation．D.Thetime-honoredindustrialtradition．2.WhydidfarmershousesinValléedeJouxchangebythe17thcentury？A.Todecreaselifecost．B.Tocombatharshwinters．C.Tofacilitatewatchmaking．D.Topromotewatchmakingtrade．3.WhatdoesNathalieVeyssetwanttoconvey？A.WatchmakingpopularizesSwiss．B.WatchmakingmakesSwissesproud．C.WatchmakingiswidelyfoundinSwiss．D.Watchmakingshowstopcraftsmanship.4.WhatisCarlenesattitudetothefutureofSwisswatchmakinginthetechera？A.Concerned.

B.Indifferent.C.Mixed.D.Optimistic.（四）Sponges.Isthereanythingtheycantdo？Forthousandsofyears，humanshaveuseddriednaturalspongestocleanup，topaintandasvesselstoconsumefluidslikewaterorhoney.Whethersynthetic（合成的）ornatural，spongesaregreatatabsorbingtinyparticlesintheirmanypores（空隙）.InAugust，researchersinChinapublishedastudydescribingtheirdevelopmentofasyntheticspongethatmakesshortworkofmicroscopicplasticdebris（碎片）.Intests，theresearchersshowthatwhenaspeciallypreparedplastic-filledsolutionispushedthroughoneoftheirsponges，thespongecanremovebothmicroplasticsandevensmallernanoplasticsfromtheliquid.Theytrieditineverythingfromtapwaterandseawatertosoupfromalocaltakeoutspot．AccordingtoGuoqingWang，amaterialschemistatOceanUniversityofChinaandco-authoronthepaper，thespongeformulaisadjustable.Thesponges，ifeverproducedatanindustrialscale，Wangsays，couldbeusedinwastewatertreatmentplantstofiltermicroplasticsoutofthewaterorinfoodproductionfacilitiestoavoidpollutingwater．Thereareshortcomingstothespongespotentialadoption，though.Theplastic-gobblingspongesaremademostlyfromstarchandgelatin.ChristianAdlhart，achemistatZurichUniversityofAppliedSciencesinSwitzerland，saysstarchandgelatinareimportanttothefoodindustry，meaningthattherecouldbecompetitionforthekeyingredientsinthefuture.Besides，starchandgelatinareallbiodegradable.However，theprocessdevelopedbyWangandhiscolleaguestomaketheirspongeusesformaldehyde，ahighlypoisonouscompound，andthereweretracesofthisinthespongesthemselves.Whenitcomestocleaningupmicroplasticpollutionintheocean，AliceHortonattheUnitedKingdomsNationalOceanographyCentersayssheisconfidentaboutisthateffortstoremovemicroplasticsaftertheyhavealreadyreachedtheoceanareprobablydoomedtofail.“Idontthinkthereisanythingwecandoonalargeenoughscalethatwillhaveanyimpact，”shesays.“Wehavetostopitgettingthereinthefirstplace.”1.Whatcanwesayaboutspongesinparagraph1？A.Theyarewidely-used．B.Theymainlyexistinnature．C.Theydependheavilyonwater．D.Theyarehometotinyparticles．2.WhatisthedistinctivefeatureofChinasnewsponges？A.Theadjustablesizesandstyles．B.Theapplicationinvarioussolutions．C.Theabsorptioncapacityofmicroplastics．D.Theabilitytobreakingdownplasticdebris．3.WhatmayputChinasnewspongesatadisadvantageaccordingtoAdlhart？A.Therawmaterials.B.Thepoisonousby-products．C.Theintensemarketcompetition.D.Thecomplexmakingprocess．4.WhatdoesAliceHortonthinkofthespongesfunctioninremovingplasticintheocean？A.Significant.B.Unidentified.C.Predictive.D.Impractical.（五）FourWaysToReduceHouseholdEnergyUseInWinter1.AirdrylaundryWashingmachinestypicallyuse05kilowatthoursfora9kgwash，lessthanthe082kilowatthoursusedonaveragebyhandwashingasmuchlesshotwaterisrequired．Tumbledryersusealotofenergy，withasinglecycleusingabout45kilowatthours.Byairdryinglaundry，theaveragehouseholdcouldsaveover￡130ayear．2.UselesshotwaterAshowerlastingnineminutesusesaround43kilowatthoursofgasandcosts44p.Reducingtosixminutes，householdscansave15p．Fixalow-flowshowerhead，andashowerwillconsumelesshotwater.Forhouseholdsthataveragetwonine-minuteshowersaday，thiscouldsaveover￡100peryear．However，alow-flowshowerheadwillonlyworkwellwherethewaterpressureishigh．3.MakebetteruseofheatingThermostaticradiatorvalves（散熱器恒溫控制閥）cancontrolthetemperatureacrossrooms.Theyregulatetheflowofhotwaterandadjustthetemperatureforeachroom．However，thedoorsbetweenroomsshouldremainclosedtopreventenergybeingwasted．4.Maximiseinsulation（隔熱）Secondaryglassintheformofwindowshutterscanhalvetheamountofheatlostthroughasingleglass，savingtheaveragehomeover￡50peryear.Butfixingwindowshuttersonabuildingsoutsidemayrequireplanningpermission．Closingcurtainsrepresentsacheaperwayofkeepingheat.Researchindicatescurtainscanreducetheamountofheatlostthroughwindowsbyupto38%．1.Whydoeshandwashingcostmoreenergycomparedwithmachinewashing？A.Ittakesgreaterphysicalstrength．B.Itrequiresmuchmorehotwater．C.Itconsumesmorewashingpowder．D.Itmeansmoreenergytodryclothes．2.Howmanywaysaresuggestedtobathewithlesshotwater？A.Five.

B.Four.

C.Three.

D.Two．3.Whatshouldbedonebeforefixingwindowshuttersonabuildingsoutside？A.Askingforplanningpermission．B.Evaluatingallthepotentialrisks．C.Keepingtheinsidedoorsclosed．D.Loweringtheindoortemperature．（六）Intheearlypartofhislife，SeiichiSanowasabusybusinessowner.Laterinlife，hetookonotherdifficultactivities.Attheageof80，heclimbedMountFuji，Japanshighestmountain.Soonafter，hestartedsurfing．Sanoturned90earlierthisyear.HewasrecognizedbyGuinnessWorldRecordsastheoldestmaletosurf.“IthinkitwouldbeinterestingtotrytosurfuntilIm100，”Sanosaid.“IthinkItakebettercareofmyselfwhenIhavegoalslikethis.Evennow，ItakebettercareofmyselfthanIdidbefore.”Sanolivesinaplaceabout20minutesfromYokohama.Hegetsoutmostweekendsontheblack-sandbeachnearEnoshima.Itisthesmallislandthatheldsailingcompetitionsduringthe2020TokyoSummerOlympicGames.Sanosaidhegottheideatotrysurfingfromaworkerathislocalbank.Themansskinwasalwaystan（黃褐色的）andhedidntlooklikeausualbanker.Hissecret，hesaid，wassurfing.So，Sanofoundateacher．SanojoinedhundredsofothersurfersatEnoshima.Allthesurferswereyounger.SeveralstudentswhoalsoworkwithSanossurfteacher，46-year-oldKazutoShimizu，talkedaboutSano.“Ithinkagedoesntmatterinsurfing，”12-year-oldIrohaShimabukurosaid.HertwinsisterFukaadded，“Hesmorelikeafamilymemberregardlessofage.”“Ithinkhesamazing，”saidtheiryoungerbrother，Shua.RokkaSaito，theotheryoungsurferinthegroupoffour，summeditup：“Irespecthim.”Sanostillrunsabusinessthatsupplieswoodtobuildingcompanies.Heworks9-to-5atthejob.Surfingeasestensionforhim.Hesaid，“Ihaveneverthoughtofmyselfasanoldperson.IalwaysfeelthatIcanstillmoveforward.Icanstilldoit.Icanstillenjoyit.”4.WhatdoweknowaboutSeiichiSano？A.Hesufferedagreatlossinhisbusiness．B.Hedidntleadahealthylifeinthepast．C.HewastheoldesttoclimbMountFuji．D.Heiscrazyaboutchallengingactivities．5.WhydidSeiichiSanotakeonsurfing？A.Hepreparedfor2022OlympicGames．B.Heintendedtoprovehisphysicalstate．C.Hewasinfluencedbyalocalbanker．D.Hewantedtoexperienceexcitement．6.WhatisParagraph4about？A.Surfingisverypopularamongyoungsters．B.YoungsurfersspeakhighlyofSeiichiSano．C.Traditionalcommentsonsurfingarewrong．D.KazutoShimizuisarespectablesurfteacher．7.WhichofthefollowingbestdescribeSeiichiSano？A.Confidentandhumorous．B.Competitiveandcareful．C.Determinedandpositive．D.Successfulandgenerous．（七）AnewreportlaunchedontheeveofthefirstmajorU.N.conferenceonwaterinover45yearssayswaterusehasbeenincreasinggloballybyroughly1%peryearoverthelast40years，andisexpectedtogrowatasimilarratethroughto2050，drivenbyacombinationofpopulationgrowth，socio-economicdevelopmentandchangingconsumptionpatterns．RichardConnor，editor-in-chiefofthereport，saidthatactualincreaseindemandishappeningindevelopingcountriesandemergingeconomieswhereitisdrivenbyindustrialgrowthandespeciallytherapidincreaseinthepopulationofcities.“Itisintheseurbanareasthatyourehavinganevidentincreaseindemand，”hesaid．Withagricultureusing70%ofallwaterglobally，Connorsaid，“irrigation（灌溉）forcropshastobemoreefficient—asitisinsomecountriesthatnowusedripirrigation，whichsaveswater.Thatallowswatertobeavailabletocities.”Asaresultofclimatechange，thereportsaid，“Seasonalwaterlackwillincreaseinregionswhereitiscurrentlyabundant—suchasCentralAfrica，EastAsiaandpartsofSouthAmerica—andworseninregionswherewaterisalreadyinshortsupply，suchastheMiddleEastandtheSaharainAfrica.”O(jiān)naverage，10%oftheglobalpopulationlivesincountrieswithhighorcriticalwaterstress—andupto35billionpeopleliveunderconditionsofwaterstressatleastonemonthayear．Asforwaterpollution，Connorsaidthebiggestsourceofpollutionisuntreatedwastewater.“Globally，80percentofwastewaterisreleasedtotheenvironmentwithoutanytreatment，andinmanydevelopingcountriesitsprettymuch99%，”hesaid．Theseandotherissuesincludingprotectingwaterecosystems，improvingmanagementofwaterresources，increasingwaterreuseandpromotingcooperationacrossbordersonwaterusewillbetouchedonduringthethree-dayU.N.WaterConference．8.Whatcanbelearnedaboutwaterusefromthereport？A.Itwillamounttothepeakin2050．B.Itisheaviestindevelopednations．C.Ithasanobviousincreaseincities．D.Itcandetermineeconomicgrowth．9.WhatseemstobeRichardConnorsattitudetowardsdripirrigation3？A.Doubtful．B.Confused．C.Indifferent．D.Supportive．10.WhatisParagraph4mainlyabout？A.Climateproblemisworseningwatersupply．B.Africancountriesareshortofwatersources．C.Populationissueisthekeytowatershortage．D.Waterqualityvarieswithseasonandregion．11.Whichofthefollowingbestexplains“touchedon”underlinedinthelastparagraph？A.Replaced．B.Discussed．C.Advanced．D.Compared．（八）Sincesoysaucewasfirstinventedmorethantwothousandyearsago，ithasconqueredjustabouttheentireworld.Itisappliedeverywhere：itcanbeaddeddirectlytofood；addedontopofrice，ornoodles；insomeplaces，itsevenanicecreamflavor．However，over-consumingsoysauceissurprisinglydeadly.Thereasonisprettymuchthesamereasonwhyitssotasty：saltcontent.Justonetablespooncontainsmorethanathirdofrecommendeddailyintakeofsodium（鈉），makingiteasytogetanunhealthydiet.Pushthelimittoofar，though，andyoureheadingtowardsdisaster.Forexample，a19-year-oldmandownedalmostafullliter，onlytoendupwithcoma（昏迷）.Luckily，hewasrushedtotheUniversityofVirginiaMedicalCenterandtreatedquicklyintheemergencyroom-withinfourhours，hewasbeingfed6litersofsugaryfluid.Itworkedfast：afteranhour，hissodiumlevelsreturnedtonormal．AccordingtoDavidJCarlbergwhotreatedthepatient，toomuchsaltinthebloodcauseshypernatremia（高鈉血癥），inwhichwatermovesoutoftissuesinanattempttobalancesaltlevelsbetweenthemandtheblood.Itsverytoxic：notonlycanitcausedeadlyfluidbuildupsinthelung，butaswaterleavesthebrain，theorgancanshrinkandbleed．Somehow，thispatientescapedfromtheexperience-althoughthecasereportnotedthathisbloodsodiumlevelasmeasuredatthehospitalwasthehighesteverseeninanadultthathadntdiedbecauseofit.Byrights，heshouldnthavebeensolucky：adeadlyamountofsodiumcanoccuratlevelsaslowas05to1gramofsaltperkilogramofbodyweight．So，nexttimeyoufeellikeaddingjustabitmoresoysaucethanrecommended，remember：dontgooverboard.Itmightbeatastyadditiontoyourmeal，butitsprobablynotworthatriptotheemergencyroom．12.WhatdoesParagraph1mainlytellus？A.Soysauceistheearliestinvention．B.Soysaucesellswellinthemarket．C.Soysaucehasavarietyoffunctions．D.Soysauceisntaspopularasbefore．13.WhatisthepurposeoftheexampleinParagraph2？A.Toexplorethenormalintakeofsodium．B.Toexplaintheharmofheavysoysauce．C.TopraiseCarlbergforhismedicalskills．D.Toshowtheclinicalapplicationofsugar．14.Whichofthefollowingcanreplace“toxic”underlinedinParagraph3？A.Flexible．B.Complex．C.Energetic．D.Dangerous．15.Whichofthefollowingmaytheauthoragreewithaboutsoysauce？A.Itsintakeshouldbeunderpropercontrol．B.Itsqualityneedstobeimprovedurgently．C.Itshouldbelimitedbelow05gramdaily．D.Ithassomethingtodowithmanydiseases．參考答案與解析（一）本文是一篇說明文，主要介紹加勒比的箱形水母具有快速的學(xué)習(xí)能力。1.C.細節(jié)理解題。根據(jù)文章第一段中“thetinycreaturesavoidbumpingintotheroots…‘Theanswerwas，theycanlearnthis”可知，箱形水母的學(xué)習(xí)能力使得其可以在紅樹林周圍安全地生活。2.A.推理判斷題。文章第三段提到“在渾濁的水中，箱形水母最初撞到了墻上。但它們用了不到八分鐘的時間來調(diào)整自己的行為?！睆闹锌芍湫嗡傅男袨楦淖兙褪瞧鋵W(xué)習(xí)發(fā)生的結(jié)果。所以說，箱形水母學(xué)習(xí)的速度很快。3.B.推理判斷題。文章第四段提到“科學(xué)家認為只有當箱形水母受到視覺和機械刺激的結(jié)合時，它們才會真正學(xué)到一些東西”，接著在第五段中提到“科學(xué)家把箱形水母的視覺中心剝離出來，進行輕微的電擊進而觀察其對水母運動行為的影響”，所以說，把箱形水母的視覺中心剝離出來的目的是為了研究視覺對箱形水母學(xué)習(xí)能力的影響。4.B.細節(jié)理解題。根據(jù)文章最后一段中“Ifthatstrue，scientistsarestillleftpuzzlingoverhowthefourrhopaliaworktogethertomakeupafunctioning，brain-likesystem.”可知，依然令科學(xué)家疑惑的是箱形水母四個視覺中心是怎樣協(xié)同工作的，也就是rhopalia的工作機制。（二）本文是一篇記敘文，主要介紹MahanChandraBorah創(chuàng)立水稻種子圖書館AnnapurnaRiceLibrary保護當?shù)厮镜墓适隆?.A.理解具體信息。根據(jù)文章第一段中“Asayoungboy，Mahanoftenhelpedhisfatheroutinthefields.‘WorkingwithhiminthefieldsiswhereIlearntallIknowaboutfarming，”可知，Mahan在年輕的時候?qū)W會了種植水稻。2.C.推理。文章第二段提到“Mahan發(fā)現(xiàn)人們不知道當?shù)厮居泻芏喾N，而這種無知導(dǎo)致了一些水稻的滅絕，所以他創(chuàng)立了AnnapurnaRiceLibrary”，所以說，人們對不同水稻的無知促使Mahan創(chuàng)立了AnnapurnaRiceLibrary。3.A.推理。根據(jù)第三段中“theloweryieldperhectarehasbeenafactorasthefarmersdonotprefertogrowtherice”可知，BhaoDhan的產(chǎn)量低是人們不喜歡種植的原因。所以當人們不種植這個水稻，這種水稻最終會走向滅絕。4.D.理解大意?？v觀本文內(nèi)容可知，Mahan年輕時種植水稻，了解到了一些當?shù)厮久媾R滅絕的狀況，然后成立AnnapurnaRiceLibrary讓農(nóng)民可以免費選擇一些水稻的種子進行種植，進而保全那些瀕危的水稻種子。所以說，Mahan是一個水稻種子的拯救者。（三）本文是一篇說明文，主要介紹瑞士制表業(yè)在其搖籃ValléedeJoux的發(fā)展史。1.A.理解具體信息。根據(jù)第二段中Withamonopolyofnaturalresourcessuchasaflowingalpinelake，richirondeposits，andgentian，watchmakingrapidlydevelopedandflourishedinValléedeJoux.可知，制表業(yè)得以在Valléede