2018中考专题复习补全短文(六选五)(有答案)

中考补全短文（六选五）复习专练一、Whatisthemoststressfulthinginschool?Itisprobablyexams.Examscanputusunderalotofpressure.Butsomestudentsdowellunderpressure,whileothersfeelterrible.1._____Itallcomesdowntodopamine(多巴胺).2.______Ithasmanyimportantroles:influencingmemory,attentionandhowwelearn.Ourbrainsworkbestwhenthereisanevenbalance（平衡）ofdopamine—nottoomuchortoolittle.Thebraincontrolsdopamineintwoways.Iteithertakesoutdopaminequickly,orgradually.Examsuccesscanberelatedtohowfastdopaminegoesbacktoanevenbalance.3.______Ifyoubecomestressed,yourbrainwillstarttooverload(超负荷)ondopamine.4._____Thequickeryouareabletogobacktoanevenbalanceofdopamine,thequickeryoucanfixyourselfperformbetteronatest.Scientistsfoundthat,duringatest,peoplewhoslowlygotbacktoanevenbalanceofdopaminescored8percentlower.5._____Butdon'tfear,thereissomegoodnews.Thestudyalsofoundthatthemorepracticeyouget,thelessstressedyou'llbe.So,itturnsoutthatpracticereallydoesmakeperfect.A.Whathappenswhenwesitforanexam?B.Itislikeacupoverflowing(溢出)withwater.C.So,whydosomestudentsperformbetterunderstress?D.That'sthedifferencebetweenagoodmarkandabadmark.E.Dopamineisachemicalinourbrainthatsendsinformationtoourbody.F.Isthereanythingthatcanhelpchangethespeedofdopaminegettingintoourbody?1.2.3.4.5.二、Whenwetravelaroundtheworld,wemayseemanybuildingsofspecialshapesintheworld.1.______Forexample,whenyouseeapictureofsportsstadiumthatremindsyouofabird'snest,youprobablyknowitistheOlympicStadiuminBeijing.Greatbuildingsalwayshavespecialshapes.2.______Forexample,inZhengzhou,peoplecanvisitHenanArtCenter,builtintheshapeofgoldeggs.Theshapeofitisspecial.“Fivegoldeggs”iscollectedinacenter.ItmeansZhengzhouliesinthecentreoftheCentralPlain.3.______VisitorswhoareinterestedinguitarsmightwanttovisittheGuitarMuseumintheUSA.Thebuildingisshapedlikeaguitar.Inside,visitorscanseeallkindsofmusicinstruments.4.______Oneofthenewestfunny­shapedmuseumsisapottery(陶瓷)museuminKorea.Thismuseum,builtin2011,isshapedjustlikeatraditionalKoreanpot.Visitorscanseeexamplesofpotsandtoolsusedformakingpotsinthemuseum.5.______Maybeoneday,oneofthemwillbecomeapotteryartist.A.It'soneofthemodernistbuildingsinChina.B.Theycanalsotrytomaketheirownpotsthere.C.Everyonecanrecognizethemwiththeirimaginations.D.Maybeyou'reluckyenoughtolearnfromfamousplayersthere.E.Theshapeofthebuildingshowstheobjectspeoplecanseeinside.F.Theyarecreatednotonlybytheirownwisdom,butalsoothers’help.1.2.3.4.5.三、OnecoolApril22morning,peoplestartedthedayasusual.Yetitwasnotanormalday.What'ssospecialaboutApril22?TheanswerisbecauseitisEarthDay.Peopleallovertheworldcelebratethisimportantday.TheideaofhavingaspecialdaytocelebratetheEarthbeganin1960s.Lifewasverydifferentthen.1._____Mostpeoplehadnoideahowdirtyourairandwaterwere.OnApril22,1970,twentymillionAmericansjoinedthefirstEarthDayactivities.Thisshowedthatpeoplereallywanttodosomethingfortheenvironment.Sincethenlawshavebeenpassedtoprotecttheair,water,land,andanimals.Thevehicles（汽车）suchascarsandbusesyourideinmustpassteststomakesuretheydon'tcausetoomuchpollution.Thankstoit,carstodaygiveoutabouthalfasmanybadchemicalsastheydidinthepast.2.______3.______It'sagoodthingbecausetheyhavegotalotofhelp.TheCuyahogaRiverinOhiowassopollutedthatrubbishandoilontheriverevencaughtfire!Today,theriveriscleaner.Itnolongerburns.4.______Nowthecelebrationhasspreadtoothercountries.Morethan175countriestakeparteachyear.In2007,peopleinChinapaidmuchattentiontothisbigproblem.Peoplewerethrowingawayonemillionplasticbags(塑料袋)aday!PeoplehadBye-ByeThrowawayCultureWeek.Theywantedeveryonetoseehowpolluteditwastothrowawaysomanyplasticbags.In2008,Chinapassednewlawsagainstthem.EveryApril22,millionsofpeoplegettogethertocleanandprotecttheEarth.5.______Ourjobistoputthisknowledgetowork.Youcanhelpkeepourplanethealthy,too!A.Theyalsocelebratehowfarwehavecome.B.It'shealthyenoughforbirds,fish,andotheranimals.C.Asaresult,theairwebreatheiscleanerthanitoncewas.D.Fewpeopletalkedoreventhoughtabouttheenvironment.E.Riversandlakesarealsocleanertodaythantheywerebefore.F.Manyanimalsnearandintherivercomebackagainafterthat.四、WorldSleepDay,on21stMarch,wascreatedtobringattentiontothegrowingnumberofsleepingproblems.Sleepisanaturalpartofhumanlife,butmanypeopleinthemodernworlddon'trealizeit'simportance.1._____In2012,scientistsattheUniversityofAthensinGreecedidasurveyofover35,000peoplein10countriesaroundtheworld,includingChina,BelgiumandSouthAfrica.Amongthepeople,24percentsaidthattheydidnotsleepwell,31.6percentwerediagnosed(诊断)withinsomnia(失眠).Inaddition,30.7percentofthemhavevisiteddoctorsforhelpwithsleepproblemsand11.6percentsaidthattheyfeltverysleepyduringtheday.Thesurveyfoundthatmanypeopleareexperiencingtheeffectsofpoorqualitysleep.Theycan'tfallasleepandoftenwakeupinthemiddleofthenight.2._____Besides,noisepollutionandlightpollutionalsoaffectsleepandcausepoorqualitysleep.Thesurveyalsofoundthatlargenumbersofpeoplefindithardtosleepatnight.3._____Ifthishappensforalongtime,theriskofputtingonweightandhavingaheartproblemmayincrease.4._____First,youshouldhavegoodsleepinghabits.Trytogotobedandwakeuparoun