营口市届高三上学期期末考试 英语试题含答案.docx
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营口市届高三上学期期末考试 英语试题含答案.docx
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营口市届高三上学期期末考试英语试题含答案
营口市2021届高三上学期期末考试
英语试题
第Ⅰ卷
第一部分:
听力(略)
第二部分:
阅读理解(共两节,满分50分)第一节(共15小题,每小题2.5分,满分37.5分)
阅读下列短文,从每题所给的A、B、C、D四个选项中选出最佳答案。
A
OilPaintingworkshop
March232021
Forages15andup.
Beginnerswelcome!
Experiencenotrequired.
RegistrationDeadline—March9,2021
●ClassSchedule
9:
30-10:
00WelcomeandRegistration
10:
00-12:
00PaintingSession
12:
00-1:
00Lunch
1:
00-3:
00PaintingSession
3:
00EvaluationandDeparture
●AbouttheInstructor
JudyMoore-Gist,AlexanderCertifiedInstructorandCertifiedRossInstructor,ismakinggreateffortstogivepeopleofallagestheopportunitytoexperienceWilliamAlexander'sTheMagicofOilPaintingandBobRoss'sTheJoyofPainting.Both,WilliamAlexanderandBobRoss,PBSTVhosts,haveinspiredthousandsoffirst-timepainters.Showingthe"wet-on-wet"techniqueencouragedpeopleofallagestopickupabrushandputtheirdreamsoncanvas(画布).Judywilldothesame,andyouarewelcometotakeaclassandseeforyourself.Attheendofjustonesessionyouwillbeamazedatthebeautifulpaintingthatyoucreateinjustafewhours.Youwillbecomemoreawareofbeautifulcloudshapesandcolorsyouignoredbefore.Thereisnothingmoreinspiringthanseeingabeautifulscenerythatyoupaintandotherswilltreasureforever.
FormoreinformationaboutJudyMoore-Gist,clickhere.
Cost:
$75.00/aperson
Pricesincludeallinstructorfees,materials,andlunch.
Ifyouwishtopaybycheck,pleaseprinttheOilPaintAug.pdfprintableregistrationformandmailitinwithpaymentto:
HolidayLake4HEducationalCenter,12674-HCampRoad,Appomattox,VA24522.
Refund(退款)Policy:
FullRefund:
March9,2021
Nonrefundable:
afterMarch9,2021
FormoreinformationcontactHeatherBenninghoveat434-248-5444orheathern@vt.edu.
21.Whatshouldpeopledotoattendtheclass?
A.Provideapieceofpainting.B.PayforitbeforeMarch9,2021.
C.Learnsomethingabouttheinstructor.D.RegisterforitnolaterthanMarch9,2021.
22.Whatcanwelearnfromthetext?
A.Theclassisintendedforpeopleofallages.
B.YoucangetafullrefundbeforeMarch23,2021.
C.Moreinformationabouttheinstructorisavailableonline.
D.Paintingexperienceisneededforpeopletoattendtheclass.
23.Wherewouldyoubemostlikelytofindthetext?
A.Inanewspaper.B.OntheInternet.C.Onanoticeboard.D.Inacompanybrochure.
B
IworkatagrocerystoreinMontreal'sPlateauneighbourhood,whichgetsalotofregulars.OnMarch12,theQuebecgovernmentannouncedtocloseallpublicplacestostopthespreadofthepandemic(流行病)ofcoronavirus.
ThenextdaythestorewasthebusiestI'veeverseen.Thesixcashregistershadtobekeptopenfrom10a.m.untilclose.Itwasnuts.Ididn'thavetimetoeatlunch,andwheneveroneofusoncashhadtousethebathroom,we'dhavetobringinacoworkerofthefloortocoverforus.
Sincethen,theatmosphereinthestorehasbeendifferent.Customersaremostlyconsiderate,butwheneversomeonecoughsorsneezes,everyoneturnsaroundtomakesurethatpersonsneezedintotheirelbow.I'veevenseencustomerscomeinwearingsomestrangeget-ups.OneguyevencameinwithaplasticWalmartbagwrappedaroundhisentirehead,withaslitcutoutforhiseyes.
Alotofmycoworkershavelefttoavoidapublic-facingjobduringthepandemic.grocerystoreworkersacrossCanadaareputtingtheirhealthatriskeverytimetheycomeintowork,butalotofusarestillmakingclosetominimumwage.IrealizethatIfeelmoreexhaustedthannormaleventhoughI'mworkingthesamehours.
Therestillhavebeensomemomentsofkindnessinthemidstofthechaos.I'veoverheardpeopletalkingonthephonewhosoundedasthoughtheywereorganizinggrocerydeliveriesforthosestuckathome.Andthispastweekendaveryniceladythankedusforcontinuingtowork.Iknoweveryoneisworried,butit'suselesshavingthesamescaryconversationsdayafterday.Insteadtellusafunnyanecdote,oraboutsomethingnice.We’llappreciatethedistraction,andyou’llmakeourdayjustabitbrighter.
24.Whatdoestheauthorintendtoshowby"Itwasnuts."inParagraph2?
A.Thegoodswereinshortsupply.B.Thestorewashavingabigsale.
C.Thecashierscomplainedabouttheirwork.D.Thelocalsrushedtodoshoppinglikecrazy.
25.WhatdoesParagraph3conveyaboutcustomers?
A.Theyprefertoshophereincostume.B.Theyarepanickyaboutthedisease.
C.Theyaremorefriendlytoeachother.D.Theyallprotectthemselvesproperly.
26.Whichofthefollowingbestdescribestheauthor?
A.Aggressive.B.Considerate.C.Optimistic.D.Conservative.
27.Whatistheauthor'smainpurposeinwritingthearticle?
A.Topresentthekindmomentsinatimeofchaos.
B.Todescribewhatit'slikeworkinginthepandemic.
C.Toexplainwhyitishardtoworkatthegrocerystore.
D.Toprovideadviceonhowtoprotectoneselfinthepandemic.
C
Likepeople,plantsexperiencestress.Andalso,likepeople,theresponsetothatstresscandeterminesuccess.
Badenvironmentalconditions,suchasdrought,flood,heatandotherstresses,affectyieldsmorethancroppestsanddiseases.Wearetryingtofindawaytoequipplantswiththeabilitytotolerateenvironmentalstressandmaintainhighyields,saidStephenHowell,aprofessorofgeneticsandcellbiology.
Plantcellsproduceproteinsandshipthemtodifferentpartsofthecell.Undernormalconditions,theseproteinsarefoldedintotheirnormal,healthystructuresastheyareproduced.Whenaplantisunderstress,itscellsproducepoorlyfoldedorunfoldedproteins.Thenabuilt-insystemsensesthisand"setsoffanalarminthecell,"saidHowell.
Inresponsetothealarm,anotherprotein(IRE1)startsworkingandcreatesadifferentprocesswhichactivatesthestressresponsegeneswhoseproductsbringaboutdefensivemeasuresthathelptheplantsurvive.
“Asitturnsout,responsesthatareactivatedunderstressconditionsactuallyinhibitthegrowthofplants,”saidHowell.“Thisallowsthemtopreservetheirenergytosurvivethestressconditions.”
Forplantsinthewild,thisresponseisahelpforsurvival,hesaid.Inproductionofagriculturecrops,however,thisresponsereducesyields.
“Youdon'twantcropplantstostopgrowing,”Howellsaid.“Youwantthemtocontinuetogrowandproduceeventhoughtheyareunderstress.”
Withthenewunderstandingofthisstressresponse,thenextstepmaybetosilencethealarmsystem,saidHowell."Whatmaybeimportantistodisablesomeofthesestressresponses.Thatmaymaketheplantmoreproductiveunderstressconditions."
28.Accordingtothetext,whatcausesanalarmintheplantcells?
A.Thefoldedproteins.B.Thechangedproteins.
C.Thedefensivemeasures.D.Thestressresponsegenes.
29.Whatdoestheenergypreservedintheplantsunderstressconditionsdo?
A.Ithelpstheplantstosurvive.B.Ithelpstomaintainhighyields.
C.Itkeepstheplantsgrowing.D.Ithelpstoproduceproteins.
30.Whichofthefollowingisclosesttothemeaningoftheunderlinedword“inhibit”inParagraph5?
A.Start.B.Continue.C.Promote.D.Prevent.
31.HowdoesHowellintendtomakecropplantsmaintainhighyieldsunderstressconditions?
A.Bymakingcropplantskeepmoreenergy.B.Bymakingcropplantsstopgrowing.
C.Bymakingthealarmsystemstopworking.D.Bymakingthealarmsystemrespondquickly.
D
Anewdeviceworkslikeasolarpanel,exceptthatitdoesn'tharvestenergyfromthesun.Itabsorbsenergyfromthecoldnightsky.
Aprototype(原型)ofthedeviceproducedenoughelectricityatnighttopowerasmalllightbulb.Abiggerversionmightonedaylightroomsorchargephones.Italsocouldpowerelectronicsinremoteorlow-resourceareasthatlackelectricity.
ThedevicemakesuseofthetemperaturedifferencebetweenEarthandouterspace.Itthenusesthatdifferencetocreateelectricity.Aslongasonesideofitiscoolerthantheother,thegeneratorcanproduceelectricity.Thecoolersidefacestheskyandisattachedtoanaluminumplate.Thatplateissealedbeneathatransparent(透明的)coverandsurroundedwithinsulation(隔热材料)tokeepoutheat.Thebottomofthegeneratorisattachedtoanexposedaluminumplate.Thatplateiswarmedbythelocalair.Atnight,thetopplatecangetacoupleofdegreesCelsiuscoolerthanthebottomofthegenerator.
Researcherstesteda20-centimeterprototypeoneclearDecembernightinStanford,California.Thegeneratorproduceduptoabout25milliwattsofpowerpersquaremeterofdevice.Thatwasenoughpowertolightasmalllight-emittingdiode,orLEDbulb.Furtherimprovementsmightincreaseitsproductiontoatleast500milliwattspersquaremeter.Todothat,thesystemmightneedmoreinsulationaroundthecooltopplate.
Thedevicealsocouldhelppowerremoteweatherstationsorotherenvironmentaldevices,saysAaswathRaman.HeisamaterialsscientistwhoworkedonthedeviceattheUniversityofCalifornia,LosAngeles.Thismaybeusefulinpolarregionsthatdon'tseesunlightformonthsatatime,Ramansays.“Ifyouhavesomelow-powerloadandyouneedtopoweritthroughthreemonthsofdarkness,thismightbeaway.”
32.Whatcanweknowaboutthenewdevice?
A.Itgainsenergyfromthesun.B.It'sbeenwidelyusedinlife.
C.Itiscoolerthanasolarpanel.D.It'llbepopularinspecialareas.
33.WhatdoestheauthormainlytalkaboutinParagraph3?
A.Applicationfieldsofthedevice.B.Thedevelopingprocessofthedevice.
C.Theworkingprincipleofthedevice.D.Significanteffectsofthedevice.
34.Howcanthedeviceproducemoreelectricity?
A.Byputtingmoreinsulationaroundthetopplate.
B.Byusingitinextremelycoldandclearnights.
C.Bymakingits
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