容易验证k2>2m2-2成立,所以(*)成立.即所求m的取值范围为(-1,-
)∪(
,1)∪{0}
22.解:
(Ⅰ)时,,,,
又所以切线方程为………6分
(Ⅱ)1°当时,,则
令,,
再令,
当时,∴在上递减,
∴当时,,
∴,所以在上递增,,所以
2°时,,则
由1°知当时,在上递增
当时,,
所以在上递增,∴
∴;
由1°及2°得:
………12分
2019-2020年高三周末练习(第11周)英语试卷
第一部分:
听力(共两节,满分20分)
该部分分为第一、第二两节。
注意:
回答听力部分时,请将答案标在试卷上。
听力部分结束前,你将有两分钟的时间将试卷上的答案转涂到答题卡上。
第一节(共5小题;每小题1分,满分5分)
听下面5段对话。
每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。
听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1.HowdoesJanefeel?
A.Satisfied.B.Happy.C.Depressed.
2.Whyaretherenoroomsavailable?
A.Becauseofaconference.
B.Becauseofamarathon.
C.Becauseofanoutdoormusicfestival.
3.Wheredoestheconversationprobablytakeplace?
A.Inahouseagent.B.Onthecampus.C.Inachurch.
4.Whatdoesthewomanmean?
A.Shedoesn’tthinkmuchoftheroom.
B.Theroomisfixedattheman’srequest.
C.Sheagreeswiththeman.
5.WhywasJanenervous?
A.Becauseshehadtotypeapaper.
B.Becauseshethoughtherpapermightbelate.
C.Becauseshewasafraidoffailingtheexam.
第二节(共15小题;每题1分,满分15分)
听下面5段对话或独白。
每段对话或独白后有几个小题,从题中所给的A,B,C三个选项中选出最佳选项,并标在试卷的相应位置。
听每段对话或独白前,你将有时间阅读各个小题,每小题5秒钟;听完后,每小题将给出5秒钟的作答时间。
每段对话或独白读两遍。
听第6段材料,回答第6至8题。
6.What’sBob’sson’shobby?
A.Workinginthegarden.B.Collectingcoins.C.Collectingstamps.
7.Wheredoesthewomanwanttogosomeday?
A.Japan.B.China.C.Canada.
8.Whydoesn’tBobhavearealhobby?
A.Becausehe’stoobusy.B.Becausehe’slazy.C.Becausehe’scrazyaboutwork.
听第7段材料,回答第9至11题。
9.Howmuchisthetrainfare?
A.12Yuan.B.20Yuan.C.40Yuan.
10.Whereshouldthemangetonthetrain?
A.Onplatformnumber3.B.Onplatformnumber4.C.Onplatformnumber5.
11.Howoftendothetrainsearound?
A.Abouteverythirtyminutes.
B.Abouteverytwentyminutes.
C.Abouteverytenminutes.
听第8段材料,回答第12至14题。
12.Whereisthemanliving?
A.Inahotel.B.Inanewapartment.C.Athome.
13.WhenwillthewomanleaveforBerkeley?
A.Nextweek.B.Nextmonth.C.Theweekafternext.
14.Whatwillthetwospeakersdoat7:
00p.m.onSaturday?
A.Seeamovie.B.Haveadinner.C.Attendaparty.
听第9段材料,回答第15至17题。
15.Whatisprobablythe“Cops”?
A.ATVshow.B.Abook.C.Afilm.
16.Whatdoweknowabouttheboyatthefastfoodrestaurant?
A.Hesmokedheavily.B.Hehadalotofcandy.C.Hedrankalotofalcohol.
17.Whatarethetwospeakersinmon?
A.Theybothsmokecigarettes.
B.Theybothdrinkalcohol.
C.Theybothhavedrugs.
听第10段材料,回答第18至20题。
18.WhatdoRussianperformersdowhentheyreceivetheapplause?
A.Theydon’tclapuntiltheyleavethestage.
B.Theyusuallyclaptogetherwiththeirfans.
C.Theyusuallyrisefromtheseats.
19.Whydidpeopleclaphandsaverylongtimeago?
A.Toshowthattheylikedoragreedtosomething.
B.Toexpresstheirgreatadmirationforaperformer.
C.Toattempttodrivetheperformersoutofthestage.
20.Whatisthespeakermainlytalkingabout?
A.Thedreamofeveryperformer.
B.ThehistoryofclappinginRussia.
C.Thedifferentmeaningsofclapping.
第二部分:
英语知识运用(共两节,满分35分)
第一节:
单项填空(共15小题,每小题1分,满分15分)
21.Theworkerscouldhardlytheboss’sbadtemperbutunderhissupervisiontheyhadto
themselvestoworkingharder.
A.tolerate;contributeB.bear;dedicate
C.stand;resignD.putupwith;invest
22.Deeplyhisunhappychildhood,theboy’sseemedquiteoddandstrange.
A.relatingto;charactersB.associatedwith;personality
C.linkedby;virtuesD.connectingto;morality
23.Itisimpossibletoliveinsocietyandindependentofsociety;andthereforeitisdifficultto
societyofinequalityaswellascorruption.
A.remove;fromB.rid;ofC.substitute;withD.simplify;by
24.Havingbeentrainedforoneandahalfyears,shemanagedtogetaprofessionalqualification
afirst–degreenurse.
A.consistingwithB.agreedwithC.correspondingtoD.correspondedwith
25.Crusoeisn’tgoodenoughfigure,buthisoutstandingskillpensatesforit.
A.inresponsetoB.intermsofC.infavourofD.inhonourof
26.Ifyoucan’twinfromthepublic,thegoldmedalwillmeannothingtoyou.
A.gamesB.knowledgeC.recognitionD.notice
27.Makesurethegasisturnedoffafterabath,whichwouldcausedanger.
A.somehowB.meanwhileC.otherwiseD.furthermore
28.Herexcellentperformanceinthepetitionprovedthatshewasawinner.
A.valueB.worthyC.worthD.worthwhile
29.thesecretofnature,theyyoungscientisthaslittletimeforentertainment.
A.Devotedtobetray
B.Devotinghimselftobringtolight
C.Devotedtounearthing
D.Devotingtoexploring
30.Thosesuccessfuldeafdancersthinkthatdancingisanactivitysightmattersmorethanhearing.
A.whenB.whoseC.whichD.where
31.___iswell-knowntoallisthatthexxShanghaiWorldExpohasbeenbroughttoanend.
A.AsB.ThatC.WhatD.It
32.Sincethenewdirectortookoffice,wehaveworked___hours,-thatistosay,weworkmorefreely.
A.flexibleB.pulsoryC.strictD.endless
33.___inaheavytrafficjaminataxiwhileyouarehurryingtotheairportisquiteaunpleasantexperience.
A.HavingcaughtB.Beingcaught
C.CaughtD.Havingbeingcaught
34.MyfamilyweremovingtothecountrysideandIhadtomakesome___andlearntoleada
differentlifethere.
A.allowanceB.acmodation
C.adjustmentD.assessment
35.TheChinesecaptainwasreleasedbyJapanfinally,___nearlyamonthofdetention(扣押),whichhasseriouslyharmedtherelationshipbetweenthetwocountries.
A.endedB.endingC.toendD.beingended
第二节:
完形填空(共20题;每小题1分,满分20分)
Itwasawintermorning,justacoupleofweeksbeforeChristmas.Whilemostpeoplewere36_theircars,Trevor,myhusband,hadto_37_earlytoridehisbikefourkilometersawayfromhometowork.Onarrival,he_38__hisbikeoutsidethebackdoorasheusuallydoes.After_39_
10hoursoflabor,hisreturnedtofindhisbike40.
Thebike,ablackKona18speed,wasouronlytool.Trevorusedittogetto41,puttingin60-hourweeksto__42__hisyoungfamily.Andthebikewasalsousedtogetgroceries,43usfromhavingtowalklongdistancesfromwherewelive.
Iwasso44_thatsomeonewouldstealourbikethatIwrotetothenewspaperandtoldthemourstory.Shortlyafterthat,severalpeopleinourarea45tohelp.Onewonderfulstranger46boughtabike,thencalledmyhusbandtopickitup.47myhusbandhadawaytogettoandfromhisjob.Itreallyisa(an)48thatapletestrangerwouldgooutoftheirwayforsomeonetheyhavenevermetbefore.Peoplesaythatasmilecanbe49fromonepersontoanother,butactsofkindnessfrom50areevenmoreso.Thisexperiencehashadaspreadingeffectinourlivesbecauseit51ourfaithinhumanityasawhole.Andithas_52ustobemoremindfulofwaysthatwe,too,can53withothers.Nomatterhowbigorhowsmall,anactofkindnessshowsthatsomeone54.Andtheresultscanbe55.
36.A.coolingdownB.warmingupC.speedingupD.slowingdown
37.A.getupB.wakeupC.turnupD.riseup
38.A.piledB.pushedC.parkedD.paused
39.A.puttinginB.puttingonC.puttingoffD.puttingaway
40.A.brokenB.robbedC.hiddenD.gone
41.A.studyB.shopC.workD.deliver
42.A.liveB.supportC.serveD.protect
43.A.gettingB.protectingC.savingD.allowing
44.A.surprisedB.thrilledC.puzzledD.sad
45.A.offeredB.supportedC.providedD.agreed
46.A.stillB.finallyC.evenD.yet
47.A.NowandthenB.OnceinawhileC.OnceagainD.Soonerorlater
48.A.honorB.pityC.sympathyD.respect
49.A.thrownB.passedC.sentD.got
50.A.friendsB.strangersC.relativesD.parents
51.A.weakenedB.spreadC.reducedD.strengthened
52.A.movedB.forcedC.urgedD.influenced
53.A.shareB.connectC.dealD.work
54.A.likesB.caresC.worriesD.wonders
55.A.shortB.promising