黑龙江省安达市第七中学校2025届高三英语2月线上测试试题

PAGE19-黑龙江省安达市第七中学校2025届高三英语2月线上测试试题一、阅读理解1.Atthestartofnearlyeverydoctor’svisit,chancesarethatyouwillbeaskedtogetyourweightmeasured.Butmanyconversationsaroundweighthavebecomeanobstacle,notahelp,inthecampaigntomakepeoplehealthier.Doctors’recommendationstodroppoundsarestillextremelycommon,eventhoughusingbodysizeasaone-size-fits-allwaycanleadtoignoranceofthecomplexityofanindividual’sparticularphysiology.Manystudieshaveshownheavierpeopleareathigherriskforhighbloodpressure,diabetesandotherdiseases.Butthebigpictureisnotthewholepicture.Researchershaveidentifiedsomefatpeopleconsideredtobe“metabolicallyhealthy”.However,oneinterestingreportpublishedin2024foundthatunhealthythinpeopleweretwiceaslikelytogetdiabetesashealthyfatpeople.Clearly,althoughtheassociationbetweenbeingoverweightanddiseaseisveryreal,individualexperiencecanvarygreatlyanddependsonpersonalphysiologyandbehavior.Despitesuchfindings,amongthemoreterribleeffectsofweight-centralhealthcarearetheincreasedshameexperiencedbytheoverweight.Thewell-reportedexperienceofnumerousfatpeopleisthatdoctorsoftensetweightlosswithoutexaminingthem.Researchoverthepasttwodecadeshasshownthathealthprofessionalshavenegativeattitudestowardfatpeople.Notonlythatbutdoctors’appointmentswithfatpatientsareshorteronaverage,andsomerefusetoseethesepatientsatall,astheSouthFloridaSunSentinelreportedin2011.Suchprejudicedpracticeskeeppeoplefromregularannualexamsandpreventthedetectionofserioushiddenconditions.Topracticeevidence-basedmedicine,doctorsshouldstoprelyingonweightaloneasanindicatorofhealthandquicklysettingoutweightlosstotreathealthdiseases.Instead,doctorsshouldfocusonbehavioralchangestoimprovehealthoutcomes.Peopleofallsizesareentitledto

evidence-basedtreatmentsandkeepthem

healthy.1.Whatistheunderlinedphrase“aone-size-fits-allway”inParagraph1referto?

A.Analternativeway. B.Atemporaryway.

C.Auniquesolution. D.Aperfectsolution.

2.WhatcanbelearnedfromParagraph2?

A.Eachheavyindividualisathigherriskfordiseases.

B.Fatpeopleareconsideredtobemetabolicallyhealthy.

C.Notallfatpeoplesufferhighbloodpressureordiabetes.

D.Thinpeopleweretwiceaslikelytogetdiabetesasfatones.

3.Howdoestheauthorconvinceusoftheeffectsofweight-centralhealthcare?

A.Bylistingfigures. B.Byquotingopinions.

C.Bygivingexamples. D.Bymakingcomparisons.

4.Whichcanbethebesttitleofthispassage?

A.WeightShame. B.WeightLoss,Healthgains.

C.WeightEffects. D.OnlyWeightIsNotEnough.2.Howdoesanecosystem(生态系统)work?Whatmakesthepopulationsofdifferentspeciesthewaytheyare?Whyaretheresomanyfliesandsofewwolves?Tofindananswer,scientistshavebuiltmathematicalmodelsoffoodwebs,notingwhoeatswhomandhowmucheachoneeats.

Withsuchmodels,scientistshavefoundoutsomekeyprinciplesoperatinginfoodwebs.Mostfoodwebs,forinstance,consistofmanyweaklinksratherthanafewstrongones.Whenapredator(掠食动物)alwayseatshugenumbersofasingleprey(猎物),thetwospeciesarestronglylinked;whenapredatorlivesonvariousspecies,theyareweaklylinked.Foodwebsmaybedominatedbymanyweaklinksbecausethatarrangementismorestableoverthelongterm.Ifapredatorcaneatseveralspecies,itcansurvivetheextinction(灭亡)ofoneofthem.Andifapredatorcanmoveontoanotherspeciesthatiseasiertofindwhenapreyspeciesbecomesrare,theswitchallowstheoriginalpreytorecover.Theweaklinksmaythuskeepspeciesfromdrivingoneanothertoextinction.

Mathematicalmodelshavealsorevealedthatfoodwebsmaybeunstable,wheresmallchangesoftoppredatorscanleadtobigeffectsthroughoutentireecosystems.Inthe1960s,scientistsproposedthatpredatorsatthetopofafoodwebhadasurprisingamountofcontroloverthesizeofpopulationsofotherspeciesincludingspeciestheydidnotdirectlyattack.

Andunplannedhumanactivitieshaveprovedtheideaoftop-downcontrolbytoppredatorstobetrue.Intheocean,wefishedfortoppredatorssuchascodonanindustrialscale,whileonland,wekilledofflargepredatorssuchaswolves.Theseactionshavegreatlyaffectedtheecologicalbalance.

Scientistshavebuiltanearly-warningsystembasedonmathematicalmodels.Ideally,thesystemwouldtelluswhentoadapthumanactivitiesthatarepushinganecosystemtowardabreakdownorwouldevenallowustopullanecosystembackfromtheborderline.Preventioniskey,scientistssaysbecauseonceecosystemspasstheirtippingpoint(临界点),itisremarkablydifficultforthemtoreturn.1.Whathavescientistsdiscoveredwiththehelpofmathematicalmodelsoffoodwebs?

A.Thelivinghabitsofspeciesinfoodwebs.

B.Therulesgoverningfoodwebsoftheecosystems.

C.Theapproachestostudyingthespeciesintheecosystems.

D.Thedifferencesbetweenweakandstronglinksinfoodwebs.

2.Astronglinkisfoundbetweentwospecieswhenapredator_____.

A.hasawidefoodchoice B.caneasilyfindnewprey

C.stickstoonepreyspecies D.canquicklymovetoanotherplace

3.Whatwillhappenifthepopulationsoftoppredatorsinafoodwebgreatlydecline?

A.Thepreyspeciestheydirectlyattackwilldieout.

B.Thespeciestheyindirectlyattackwillturnintotoppredators.

C.Thelivingenvironmentofotherspecieswillremainunchanged.

D.Thepopulationsofotherspecieswillexperienceunexpectedchanges.

4.WhatconclusioncanbedrawnfromtheexamplesinParagraph4?

A.Uncontrolledhumanactivitiesgreatlyupsetecosystems.

B.Rapideconomicdevelopmentthreatensanimalhabitats.

C.Speciesofcommercialvaluedominateotherspecies.

D.Industrialactivitieshelpkeepfoodwebsstable.

5.Howdoesanearly-warningsystemhelpusmaintaintheecologicalbalance?

A.Bygettingillegalpracticesundercontrol.

B.Bystoppingusfromkillinglargepredators.

C.Bybringingthebroken-downecosystemsbacktonormal.

D.Bysignalingtheurgentneedfortakingpreventiveaction.3.Humankindhastriedtoimproveitsstandardoflivingsincetheverybeginningofcivilization.Backthen,aswellastoday,providingfoodandsecuritywasthebasictaskforaperson.However,nowadaystherangeofrequiredgoodshasexpandedsignificantly.Peoplefeeltheneedfornotonlysomeprimarythings,suchasapieceofbreadandaroofovertheirheads,butalsoforvariousfacilitiesandluxuries.Providinghumanitywiththesethingsisconnectedtotheuseofnaturalresources,whichrequiresenergy.Inturn,thecommonsourcesofenergyweusetodaycausepollution,soeconomicgrowthisalmostinevitablyassociatedwithenvironmentaldamage.Economicgrowthistheincreaseinnumbersofgoodsandservicesproducedovertimebyaneconomy,andit'scalculatedintermsofrealGrossDomesticProduct(GDP).Beforegrowthiscalculated,inflation(通货膨胀)isadjustedinordertotakeintoaccountitsmisleadingeffectonthepriceofgoodsandservices.Economicgrowthcanalsobeexplainedastheincreaseinexpectedoutput,whichresultsfromanincreaseinactualoutput,ortotaldemand.Therearecertainaspectsofeconomicgrowthwhichaffecttheenvironment.Thefirstoftheseisthefactthatinordertoproducemoregoodsandproducts,atafasterrate,theconstructionoflargeindustrialplantsisrequired.Theseplantsproducealotofwaste,leadingtothepollutionofwaterandtheatmosphere,whichmaycausenegativelongtermhealtheffectstonearbypopulationsofanimals,orpeople.Theyalsoleadtoglobalwarming.Industrialmanufacturingleadstotheconstantlyincreasingenergyconsumption.Thetraditionalenergysources,whicharecommonlyusednowadays,areconsideredtobethegreatestpolluterstotheenvironment.Therealsoexistso-calledeco-friendlysourcesofenergy.Theyaresometimespreferredbutreplacingthetraditionalsourceswiththemalsorequirestime,duringwhichpeoplehavetomakesomesacrificestosupporttheseundertakings.Inordertoproduceeconomicallypracticalenergy,asometimessignificanttransformationofthenaturalsiteisofteninevitable.Thisisexpensiveand,hasharmfuleffectsontheenvironment.ApplicationofwindenergywouldBlockairflows'naturalspeed,whichisthereasonfortheirdecreaseinstrength,aftercrossingthewindmill.Consequently,thepressurebalancethatisbroughtaboutbythiscurrentwillbeaffected,anditisimportanttorememberthattheenvironmentandweatherconditionsaredirectlyaffectedbyatmosphericpressure.Forthesereasons,bringingabouteconomicgrowthwithoutanyresultingenvironmentaldamage,whatsoever,isimpossible.1.Whatdoesthepassagemainlytalkabout?

A.Pollutioncausedbyplantconstruction

B.Effectsofwindmillsontheenvironment

C.Economicgrowthandhumancivilization

D.Economicgrowthandenvironmentaldamage

2.Whatdoestheunderlinedword"They"inthethirdparagraphreferto?

A.Goodsandproducts

B.Theindustrialplants

C.Waterandatmosphere

D.Negativehealtheffects

3.Accordingtothepassage,theauthorholdstheopinionthat_______.

A.economicgrowthshouldbecalculatedintermsofGDP

B.theuseofnaturalresourcescausesnodamagetotheenvironment

C.industrialmanufacturingmaycausedamagetotheenvironment

D.awindmillisaperfectwaytoproduceeconomicallypracticalenergy4.Whichofthefollowingshowsthestructureofthepassage?

4.

Wesmilebecausewearehappy,andwefrownbecausewearesad.Recentstudiessuggestthatouremotionsaredrivenbytheirrelatedfacialexpressions.

ThisFebruarypsychologistsattheUniversityofCardiffinWalesfoundthatpeoplewhoseabilitytofrownislessenedbybotoxinjections(肉毒杆菌注射)arehappier,onaverage,thanpeoplewhocanfrown.Theresearchersadministeredananxietyanddepressionquestionnaireto25females,halfofwhomhadreceivedbotoxinjectionstostopfrowning.Thebotoxinjectedpeoplereportedfeelinghappierandlessanxiousingeneral.

InarelatedstudyfromMarch,scientistsattheTechnicalUniversityofMunichfoundthatthebotoxsubjectshadmuchloweractivityinthebraincircuits(回路)involvedinemotionalprocessingandresponses—intheamygdala,hypothalamusandotherpartsofthebrain—ascomparedwithcontrolswhohadnotreceivedtreatment.

Theconceptworkstheoppositeway,too.Peoplewhofrownduringanunpleasantprocedurereportfeelingmorepainthanthosewhodonot,accordingtoastudypublishedinMay2008intheJournalofPain.Researchersappliedheattotheforearmsof29participants,whowereaskedtoeithermakeunhappy,neutralorrelaxedfacesduringtheprocedure.Thosewhoexhibitednegativeexpressionsreportedbeinginmorepainthantheothertwogroups.

Nooneyetknowswhyourfacialexpressionsinfluenceouremotionsastheyseemto.Theassociationsinourmindbetweenhowwefeelandhowwereactmaybesostrongthatourexpressionssimplyendupstrengthenouremotions—theremaybenoevolutionaryreasonfortheconnection.1.WhatcanweknowabouttheresultofthestudyfromParagraph2?A.Theabilitytofrownshouldbestoppedbyinjection.B.Lessfrownsmakepeoplehappier.C.Womenlovetofrownandfeelsad.D.Halfwomenhavenoabilitytofeelhappy.2.Whatdidscientistsdointherelatedstudies?A.Theyaskedtheparticipantstofrownorsmile.B.Theycopiedtheexpressionsoftheparticipants.C.Theyaskedtheparticipantstostaynegative.D.Theyexposedtheparticipantstoheat.3.Whatdoestheunderlinedword"neutral"inParagraph4mean?A.Humorous. B.Ambitious. C.Caring. D.Calm.4.Whatdoesthepassagetalkabout?A.Facialexpressionsinfluenceouremotions.B.Facialexpressionsaredrivenbyemotions.C.Whypeoplefeelhappyandfrown.D.Botoxinjectionisusefulandmeaningful.二、七选五5.依据短文内容,从短文后的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。Youprobablyalreadyknowthatexercisingisnecessarytopreservemusclestrength,keepyourheartstrong,andhelpyoukeepahealthybodyweight.

①_______

“There’salotofsciencebehindthis,”saysDr.ScottMcGinnis,aninstructoratHarvardMedicalSchool.Exerciseimprovesyourmemoryandthinkingskillsbothdirectlyandindirectly.Itactsdirectlyonthebrainbyencouragingthegrowthofnewbloodvessels(血管)inthebrain.

②_______

Besides,manystudieshavesuggestedthatthepartsofthebrainthatcontrolthinkingandmemoryarelargerinsizeinpeoplewhoexercisethaninpeoplewhodon’t.Exercisecanalsoimprovememoryandthinkingskillsindirectly.

③_______

Problemsintheseareasfrequentlycauseorcontributetomemorylossandalackofproblem-solvingskills.Isoneexercisebetterthananotherintermsofbrainhealth?

④_______

Almostalloftheresearchsofarhaslookedatwalking.“Butit’slikelythatanotherformofexercisethatgetsyourheartpumpingmightproducesimilarbenefits,”explainsDr.McGinnis.AstudyfoundthatTaiChi(太极拳)showedthepotentialtohelpolderadultsinplanning,workingmemory,attentionandproblem-solving.ThatmaybebecauseTaiChiinvolvesslow,focusedmovementsandrequireslearningandmemorizingnewskillsaswellasmovementpatterns.Dr.McGinnisrecommendsestablishingexerciseasahabit.Severalstudieshaveshownthatittakesaboutsixmonthstostartgettingthebenefitsofexercise.

​⑤_______

A.Wedon’tknowtheanswertothisquestion.B.Itmakesyoumoreresistanttosomediseases.C.Itevenpromotestheoverallhealthofnewbraincells.D.Itimprovespeople’ssleepandreducestheirstressandanxiety.E.Thus,heremindsyoutobepatientasyoulookforthefirstresultsF.Butexercisecanalsohelpimproveyourmemoryandthinkingskills.G.Startwithafewminutesdayandincreasetheamountuntilyoureachyourgoal.三、完形填空6.阅读下面短文,从短文后各题所给的四个选项(A、B、C和D)中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。WhenImarriedmywifeMartha,itwasthemostbeautifuldayofmylife.Halfwaythroughthereception,my

1

tappedmegentlyontheshoulderIheardherwhisper,“Willyou

2

withme,sweetheart?”“Sure,”Isaid,smiling,whensomeguestspulledmeoffintheirdirection.Anhourlatermymother

3

again.AndagainIreadily

4

,smilingandreachingforherwitha(n)

5

butlettingsomeoldcollegefriendsplaceabeerthereinstead.ThenmywifeandIwereoffonourhoneymoon.Anagging(烦人的)

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grewinthebackofmymindduringthehoneymoon.Whenwefinally

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ournewhome,aphonemessagetoldusourpictureswere

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atthephotographer's.Weunpackedslowlyandthendrovetopickthemup.Hourslater,afterwehadexaminedeveryonewith

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memories,Iheldoneouttoreflectuponinprivate.Itwasapictureoftwohappyguests,sweatyintheirdancing.Butitwasn’tthecoupleIwas

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.There,inthebackground,I

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afamiliarfigure—mydearmotherwhowas

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.AndIdidn'tthinktheyweretearsof

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.Ithendrovetomymother'sapartmentafewmilesaway.“I’msorry,Ineverdancedwithyou,Mom.”Isaid.MomlookedatmeandsaidsomethingI'llnever

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,“Nonsense,dear.You'vedancedenoughwithmeinmylifetime.Andwhileyouwerebeingtheperfect

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andmakingallofyourguestsfeelsospecial,Iwatchedyouandfeltnothingbut

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.That'swhata

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is,honey.Somethingold,somethingnew.Somethingborrowed,somethingblue.”“Well,thisoldwoman,whowaswearingblue,watchedyoudancewithyourbeautifulnewbride,andI

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Ihadtogiveyouup,

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Ihadyousomanyyearstomyself,butIcouldonlyborrowyouuntilyoufoundtheladyofyourdreams.”Bothofourtearscoveredhersofathatday.Andafterthetalk,IaskedMomforadance.Unlikeme,shedidn't

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.1.A.wife

B.mother

C.guest

D.photographer

2.A.dance

B.chat

C.walk

D.drink

3.A.stopped

B.followed

C.tried

D.failed

4.A.checked

B.escaped

C.agreed

D.left

5.A.hand

B.arm

C.foot

D.finger

6.A.curiosity

B.puzzle

C.mistake

D.concern

7.A.headedfor

B.returnedto

C.bought

D.decorated

8.A.disappearing

B.showing

C.hanging

D.waiting

9.A.unclear

B.short

C.fond

D.old

10.A.talkingto

B.focusingon

C.lookingfor

D.worryingabout

11.A.spotted

B.appreciated

C.enjoyed

D.glanced

12.Aplaining

B.waving

C.weeping

D.dreaming

13.A.joy

B.success

C.luck

D.regret

14.A.doubt

B.understand

C.imagine

D.forget

15.A.friend

B.son

C.husband

D.host

16.A.pride

B.bravery

C.excitement

D.relaxation

17.A.meeting

B.party

C.wedding

D.honeymoon

18.A.remembered

B.knew

C.pretended

D.promised

19.A.though

B.if

C.because

D.unless

20.A.forgive

B.blame

C.obey

D.refuse四、语法填空7.阅读下面短文,在空白处填入1个适当的单词或括号内单词的正确形式。SincelastSeptember,theAustralianbushfires①_________(destroy)around80,000squarekilometersofforest.Earlyon,mostreportsaboutthebushfiresfocusedonthecosttohumans.Recently,peoplehaveshownmoreconcernabouttheeffectsofthefires②________animalsthanbefore.ChrisDickman,ascientistattheUniversityofSydneytriedtofigureouthowmanyanimalsmighthavebeenkilledbythefires.Thenumberhecameupwithwas③____________(surprising)large:over1billionanimals.The④_______(lose)ofanimalscouldbeespeciallybadnewsinAustralia,which⑤______(be)hometomanyspecialanimalsthatcan'tbefoundanywhereelse.Scientistsworrythatthebushfiresmightput⑥_____endtosomekindsofanimalsthatwerealreadyindangerofdyingout.Evenwhenanimalssurvive,itcanbehardforthemtostayaliveintheworld⑦_______(leave)behindbythefires.That's⑧______manyoftheplacestheyliveinandtheirsourcesoffoodhavebeenruined.Forthatreason,workersforAustralia'sNationalParkareusinghelicopterstodropsweetpotatoesandcarrotsonto12​⑨______(difference)areaswhererock-wallabies(岩石袋鼠)live.Rock-wallabiesoftensurvivebushfires,butcanhavedifficulty⑩____________(find)enoughtoeat.五、短文改错8.假定英语课上老师要求同桌之间交换修改作文,请你修改你同桌写的以下作文。文中共有10处语言错误,每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。增加:在缺词处加一个漏字符号(∧),并在其下面写出该加的词。删除:把多余的词用斜线(\)划掉。修改:在错的词下划一横线,并在该词下面写出修改后的词。留意:1.每处错误及其修改均仅限一词;2.只允许修改10处,多者(从第11处起)不计分。

WhenIfinishedallofmyexam,myfamilydrovetothecountrysideforaholiday.Onourway,myfavoritescarfflewoutofthewindowsuddenlyandisgone.Ifeltverysad,regrettingthatwhenIhadn’tkeptthescarfwell.Soonafter,westoppedataservicestation.Feelupset,Ifoundabenchandwasabouttoatemysandwichwhenamotorcyclistpulledintothestation,“Isthatyourbluecar?”heaskedme.AlthoughIfeltsurprising,Inoddedquickly.Amanpulledouttheveryscarffrommybackpackandhandedittome.Hethenreturnedhismotorcycleandwantedtoleave.Iwentupandrepaidhimthankfulbygivinghimahug.六、书面表达9.假定你是李华,是你校学生英语协会主席。该协会打算发起一个英语演讲竞赛,请给外教Mr.Robinson写封邮件,邀请他担当决赛评委(judge)。邮件内容包括:1.演讲活动简介(如:演讲主题、参加状况等);2.竞赛的时间和地点;3.邀请的缘由。留意:1.词数100左右;2.开头和结尾已写好。DearMr.Robinson,_______________________________________________________________________________________________________________________________________________________________________________________​Yours,LiHua

参考答案1.答案：1.D;2.C;3.C;4.D

解析：1.词义揣测题。依据文章第一段第三句Doctors'recommendationstodroppoundsarestillextremelycommon,eventhoughusingbodysizeasaone-size-fits-allwaycanleadtoignoranceofthecomplexityofanindividual'sparticularphysiology.可知,医生的减肥建议仍旧特别普遍,尽管运用体型作为一种……方法可能会导致忽视个人特殊生理的困难性。依据忽视个人特殊生理的困难性可知one-size-fits-all指一体适用,万全之策。D项意为“一个完备的解决方案”。符合题意,故D项正确。A项,“另一种方式”;B项,“一个临时的方法”;C项,“一个独特的解决方案”,均不符合文意。故正确答案为D。

2.推理推断题。依据文章其次段第一、二句Manystudieshaveshownheavierpeopleareathigherriskforhighbloodpressure,diabetesandotherdiseases.Butthebigpictureisnotthewholepicture.可知,很多探讨表明,体重较重的人患高血压、糖尿病和其他疾病的风险更高。但大局并不是全貌。因此可知并不是全部的肥胖者都患有高血压或糖尿病。故C项正确。A项,“每个肥胖的人都有更高的患病风险”。依据文章其次段第一、二句Manystudieshaveshownheavierpeopleareathigherriskforhighbloodpressure,diabetesandotherdiseases.Butthebigpictureisnotthewholepicture.可知,很多探讨表明,体重较重的人患高血压、糖尿病和其他疾病的风险更高。但大局并不是全貌。故A项错误。B项,“肥胖的人被认为新陈代谢是健康的”。文章未提及。故B项错误。D项,“瘦人患糖尿病的可能性是肥胖人的两倍”。依据文章其次段倒数其次句However,oneinterestingreportpublishedin2024foundthatunhealthythinpeopleweretwiceaslikelytogetdiabetesashealthyfatpeople.可知,然而,2024年发表的一份好玩的报告发觉,不健康的瘦人患糖尿病的可能性是健康的胖子的两倍。故D项错误。故正确答案为C。

3.细微环节理解题。依据文章第三段全段Despitesuchfindings,amongthemoreterribleeffectsofweight-centralhealthcarearetheincreasedshameexperiencedbytheoverweight.Thewell-reportedexperienceofnumerousfatpeopleisthatdoctorsoftensetweightlosswithoutexaminingthem.Researchoverthepasttwodecadeshasshownthathealthprofessionalshavenegativeattitudestowardfatpeople.Notonlythatbutdoctors'appointmentswithfatpatientsareshorteronaverage,andsomerefusetoseethesepatientsatall,astheSouthFloridaSunSentinelreportedin2011.Suchprejudicedpracticeskeeppeoplefromregularannualexamsandpreventthedetectionofserioushiddenconditions.可知,尽管有这样的发觉,在以体重为中心的医疗保健的更可怕的影响中,超重的人感到越来越惭愧。大量肥胖人士的阅历被广为报道,医生常常在不检查的状况下就设定减肥安排。过去二十年的探讨表明,健康专家对肥胖人士持负面看法。不仅如此,据南佛罗里达太阳哨兵报2011年的报道,医生与肥胖患者的预约时间平均要短一些,有些甚至根本不愿见这些患者。这种偏见的做法使人们无法定期进行年度检查,也无法发觉严峻的隐患。因此可知作者通过举例子让我们信任体重中心保健的效果。故正确答案为C。

4.主旨大意题。文章主要论述了不应当依靠体重作为健康指标,并快速将减肥作为治疗健康疾病的手段,并且详细论述了缘由和建议。D项意为“只有重量是不够的”。符合题意,故D项正确。A项,“体重惭愧”。体重惭愧只是文章论述的一个方面,不足以概括文章主旨。故A项错误。B项,“体重减轻,健康增加”。文章并未论述体重减轻,健康增加。故B项错误。C项,“重量的影响”。重量的影响只是文章论述的一个方面,不足以概括文章主旨。故C项错误。故正确答案为D。2.答案：1-5BCDAD解析：1.细微环节理解题。本题题干意为:在食物网数学模型的帮助下科学家们已经发觉了什么?其次段第一句话(利用这种模型,科学家们已经发觉了一些在食物网运行过程中的关键原则)与B项(影响生态系统食物网的规则)相符,故选B项。A:在食物网中物种的生活习惯。C:探讨生态系统中物种的方法。D:食物网中关系疏远和关系紧密的区分

2.细微环节理解题。本题题干意为:当一个捕食者_____,我们会从两个物种之间找到一个紧密的关系。其次段第三句话(当一个捕食者总是大量吃一种猎物的时候,这两个物种之间就建立起了紧密的关系)与C项(坚持吃一个物种的猎物)相符,故选C项。A:有广泛的食物选择。B:能很简单找到新的猎物。D:能很快迁徙到另一个地方。

3.推理推断题。本题题干意为:假如食物网顶端的捕食者数量大量削减,会发生什么事?依据第三段第一句(数学模型也揭示出食物网可能不稳定,顶端的捕食者的小小改变都会给整个生态系统带来巨大影响)可知,当食物网顶端的捕食者数量大幅度削减时,食物网中的其他物种的数量会受到意想不到的影响,故选D项。A:它们干脆捕食的猎物物种会灭亡。文中没有提及会灭亡,解除A项。B:它们不干脆捕食的物种会变成顶端捕食者。C:其他物种的生活环境会保持不变。

4.推理推断题。本题题干意为:从第四段的例子中我们可以得出什么结论?第四段中以人类在海洋中捕食顶端捕食者鳕鱼和在陆地上大量杀死顶端捕食者狼为例来说明说明第一句话。Theseactionshavegreatlyaffectedtheecologicalbalance.可知A项(不受限制的人类活动极大地打乱了生态系统)与此相符,故选A项。B:快速的经济发展威逼到了动物的栖息地。C:具有商业价值的物种限制了其他物种。D:工业活动有助于保持食物网稳定。这三项文中均没有信息提及。

5.推理推断题。本题题干意为:一个早期的警报系统会如何帮助我们保持生态平衡?依据最终一段的描述:这套预警系统可以告知我们什么时候调整将生态系统推向崩溃的人类活动或甚至能将生态系统从崩溃边缘拉回。预防是关键,一旦生态系统超过了临界点那就特别难复原了。D项(这套系统通过发出紧急信号来让我们实行预防措施)与此相符,故选D项。A:通过限制非法行为。B:通过阻挡我们捕杀大型捕食者。这两项文中没有信息提及。C:通过把遭到破坏的生态系统拉回到正常状态。预警系统本身不能做到这一点,它只能给人类发出信号。3.答案：1.D;2.B;3.C;4.B

解析：1.soeconomicgrowthisalmostinevitably(必定地)associatedwithenvironmentaldamage”和最终一段“Forthesereasons,bringingabouteconomicgrowthwithoutanyresultingenvironmentaldamage,whatsoever,isimpossible.”可知,文章主要讲的是经济增长与环境破坏之间的关系,故选D。

2.Theseplantsproducealotofwaste,leadingtothepollutionofwaterandtheatmosphere,...Theyalsoleadtoglobalwarming.”可知,工厂产生很多废物,污染水源和大气的同时,它们也加剧了全球变暖,说明they指代的是plants,故选B。

3.Industrialmanufacturingleadstotheconstantlyincreasingenergyconsumptionareconsideredtobethegreatestpolluters...replacingthetraditionalsourceswiththemalsorequirestime,duringwhichpeoplehavetomakesomesacrificestosupporttheseundertakings”可知,制造业带来了源源不断的能源消耗,而这些能源正是造成污染的“罪魁祸首”,然而,要替代传统能源还须要时间,在此期间,为了经济的发展,人们不得不牺牲环境。由此可见,制造业会对环境造成破坏,故选C。

4.soeconomicgrowthisalmostinevitably(必定地)associatedwithenvironmentaldamage”可知,第一段是总写;依据其次段“Economicgrowthistheincreaseinnumbersofgoodsandservicesproducedovertimebyaneconomy”和第三段“Therearecertainaspectsofeconomicgrowthwhichaffecttheenvironment.”可知,其次段和第三段是两个分论点;第四段的“Industrialmanufacturing”与第三段的“industrialplants”相关,且依据第五段“Thisisexpensiveand,hasharmfuleffectsontheenvironment”可知,本段讲的是厂址的迁移,与第四段是并列关系,都是第三段的次要点,故选B。4.答案：1-4BDDA解析：1.细微环节理解题。依据其次段第一句可知，今年2月，英国威尔士加的夫高校的心理学家发觉，注射肉毒杆菌减轻皱眉实力的人比皱眉的人更欢乐。由此可知，探讨结果发觉少皱眉让人更欢乐。2.细微环节理解题。依据第四段第三句可知，探讨人员给29名参加者的前臂加热，要求他们在试验过程中做出不兴奋、中性或放松的表情。由此可知，科学家在相关探讨中让参加者接触热量。3.词义揣测题。依据倒数其次段的最终一句“Thosewhoexhibitednegativeexpressionsreportedbeinginmorepainthantheothertwogroups.”可知，那些表现出消极表情的人比其他两组更苦痛，也就是说总共有三种表情“不兴奋的”(消极）、“安静的”（不带感情色调）、“放松的”（主动），所以可推想neutral为“安静的”（不带感情色调）。故选D。4.主旨大意题。依据文章第一段可知，我们微笑是因为我们欢乐，我们皱眉是因为我们哀痛。最近的探讨表明，我们的心情是由相关的面部表情驱动的。结合文章主要内容可知，人们的表情也会影响人们的心情。5.答案：FCDAE解析：1.依据上文

Youprobablyalreadyknowthatexercisingisnecessarytopreservemusclestrength,keepyourheartstrong,andhelpyoukeepahealthybodyweight.可知,你可能已经知道熬炼对于保持肌肉力气,保持心脏强壮,以及帮助你保持健康体重是必要的。故此空应当与熬炼的其他的未知的作用有关。F项意为“但是运动也可以帮助提高你的记忆力和思索实力”,承接上文,符合语境。故正确答案为F。2.依据上文

Itactsdirectlyonthebrainbyencouragingthegrowthofnewbloodvessels(血管)inthebrain.可知,它干脆作用于大脑,激励大脑中新血管的生长。故此空应当与熬炼对大脑的作用有关。C项意为“它甚至能促进新脑细胞的整体健康”,承接上文,符合语境。故正确答案为C。3.依据上文

Exercisecanalsoimprovememoryandthinkingskillsindirectly.可知,运动也可以间接地提高记忆力和思维实力。故此空应当说明运动如何间接地提高记忆力和思维实力。D项意为“它能改善人们的睡眠,削减他们的压力和焦虑”,承接上文,符合语境。故正确答案为D。4.依据上文

Isoneexercisebetterthananotherintermsofbrainhealth?可知,就大脑健康而言,一种运动比另一种更好吗?故此空应当回答这个问题。A项意为“我们不知道这个问题的答案”,承接上文,符合语境。故正确答案为A。5.依据上文

Severalstudieshaveshownthatittakesaboutsixmonthstostartgettingthebenefitsofexercise.可知,一些探讨表明,大约须要6个月的时间才能起先获得熬炼的好处。故此空应当说明基于6个月才能起先获得熬炼的好处这一探讨结果应当怎么做。E项意为“因此,他提示你在找寻最初的结果时要有耐性”,承接上文,符合语境。故正确答案为E。6.答案：1.B;2.A;3.C;4.C;5.A;6.D;7.B;8.D;9.C;10.B;11.A;12.C;13.A;14.D;15.D;16.A;17.C;18.B;19.C;20.D

解析：1.下文中的Anhourlatermymother...again提示了本空。

2.下文中的Ineverdancedwithyou,Mom提示了本空。

3.依据Anhourlater,妈妈再次“尝试(tried)",向“我”提出共舞的邀约。

4.兴奋地同意。

5.依据上文中的Sure以及againIreadily可知,又一次,“我”对妈妈的邀约欣然“应允(agreed)”,微笑着向她伸出了一只(邀舞的)“手(hand)”。

6.依据上文可知,“我”没能在婚礼上与妈妈跳舞,之后度蜜月期间,心里莫名生出一种恼人的“担忧(concern)”。

7.依据下文中的unpackedslowly可知,我们“回(returnedto)”家了。

8.依据下文中的drovetopickthemup可知,我们(婚礼)的照片在照相馆放着,“等着(waiting)”我们去取。

9.依据第一段中的itwasthemostbeautifuldayofmylife可知,照片里满满都是“美妙的(fond)”回忆。

10.依据There,inthebackground