高二上学期期中联考数学.docx

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高二上学期期中联考数学.docx

高二上学期期中联考数学

2019-2020年高二上学期期中联考(数学)

注意事项:

1.答卷前,考生务必用黑色字迹的钢笔或签字笔将自己的姓名和考生号、试室号、座位号填写在答题卡上.用2B铅笔将试卷类型(A)填涂在答题卡相应位置上.

2.选择题每小题选出答案后,用2B铅笔将答题卡上对应题目悬想的答案信息点涂黑,如需改动,用橡皮擦干净后,再选涂其他答案,答案不能答在试卷上.

一、选择题(本大题共10小题,每小题5分,满分50分.每小题给出的四个选项中,只有一项是符合题目要求的.)

1.已知等比数列的前三项为1,,2,则()

A.4B.C.D.8

2.已知数列满足,,则()

A.27B.28C.29D.30

3.已知数列的前项和,则=()

A.37B.27C.64D.91

4.在中,,则角等于()

A.B.C.D.

5.若是任意实数,且,则()

A.B.C.D.

6.关于的不等式的解集是()

A.B.

C.D.

7.在中,已知且,则的范围是()

A.  B. C.   D.

8.等差数列的第二,三,六项顺次成等比数列,且该等差数列不是常数数列,则这个等比数列的公比为()

A.3B.4C.5D.6

9.一直角三角形边长成等比数列,且则()

A.三边长之比为3:

4:

5B.三边长之比为

C.较大锐角的余弦值为D.

10.台风中心从A地以的速度向东偏北方向移动,离台风中心内的地区为危险区,城市B在A的正东处,B城市处于危险区内的时间为()

A.B.C.D.

二、填空题(本大题共4小题,每小题5分,满分20分).

11.等比数列的各项均为正数,且则.

12.已知是互异的正数,是的等差中项,是的正的等比中项,(<,>,)选填其中一个.

13.求和

.

14.三角形的一边长为14,这条边所对的角为,另两边之比为8:

5,则这个三角形的面积为.

三、解答题(本大题共6小题,满分80分)解答须写出文字说明、证明过程和演算步骤.

15.(本题满分12分)

已知数列是等比数列,且

,求公比及.

 

16.(本题满分14分)

在中,已知,是边上的一点,,

(1)求的大小;

(2)求的长.

17.(本题满分14分)

关于的不等式

(1)当时解不等式;

(2),解不等式.

 

18.(本题满分12分)

某文具店购进一批新型台灯,若按每盏台灯15元的价格销售.每天能卖出30盏,若售价每提高1元,日销售量将减少2盏.

(1)设这批台灯提价后每盏的销售价格定为,销售收入为,写出.

(2)为了使这批台灯每天获得400元以上的销售收入,问应如何制定这批台灯每盏的销售价格范围?

 

19.(本小题满分14分)

已知是首项为19,公差为-2的等差数列,为的前项和.

(1)求通项及;

(2)设是首项为1,公比为3的等比数列,求数列的通项公式及其前项和.

 

20.(本小题满分14分)

如图半圆的直径为2,点在直径的延长线上,且,点为半圆周上的任意一点,以为边作一个等边,问点在什么位置时,四边形的面积最大?

并求出此时的四边形面积.

 

答案:

DBACDBCACB

11.212.>13.153814.

15.解:

数列是等比数列

设…………..2分

………5分

17.解:

(1)当时

………2分

………….4分

不等式的解为…………6分

(2)

整理得:

………….10分

……………12分

不等式的解为………………14分

18.解:

(1)日销售收入=每盏台灯的价格日销售量

依题意得:

……….6分

(2)依题意:

………..8分

解得:

10分

答:

为了使这批台灯每天获得400元以上的销售收入,应制定这批台灯每盏的销售价格在。

………..12分

19.解:

(1)因为是首项为的等差数列

3分

……..6分

(2)是首项为1,公比为3的等比数列

…………10分

…….14分

 

2019-2020年高二上学期期中联考(英语)

高二级英语

命题单位:

东升高中高二英语科组

Ⅰ语言知识及应用(共两节,满分45分)

第一节完形填空(共15小题;每小题2分.满分30分)

阅读下面短文,掌握其大意.然后从1—15各题所给的A、B、C和D项中,选出最佳选项,并在答题卡上将该项涂黑。

Dadlovedchildren.Andhealwayswanteda__1__family.Eventually,hegotwhathewantedwithtwelvechildreninthefamily.Withoutfail,hewouldshowusofftovisitors.

Once,Dad__2__presentedthefirstthreechildreninthefamily,Ann,MaryandErnestine,tosomevisitors.Thenhepickedupafourthchild,andsaid,"Andthisisour__3__model,pletewithalltheimprovements.Anddon'tthinkthatthisisall;weare___4___the1953modelsometimenextmonth."

Butwhathe___5___mostwastakingusoutforadrive.Ononeoccasionamaninavillagewewerepassingthroughshouted___6__thathehadseenelevenpeopleinourcar,not___7___MumandDad.___8___,Dadcalledoutoverhisshoulder,"You___9___thesecondbabyupfromthefronthere,Mister."

Anothertime,Dadtoldusthisjoke,thoughwewerenotsurethenwhetherhewastellingusthe___10___.Mum,whowasapsychologist(心理学家),oncewenttogivealectureandleftDadinchargeofthe___11___.WhenMumreturned,sheaskedhimifeverythinghadbeenOK.Hesaideverythingwasfine___12___oneofthechildrenhadbeentaughtalessonbecausehehadbeen___13___.Whenhepointedatthechildthathadbeen___14___,Mumlookedathimcalmlyandsaid,"That'snotoneofours,dear.He___15___nextdoor."

1.A.richB.lovelyC.closeD.large

2.A.surprisinglyB.nervouslyC.kindlyD.proudly

3.A.dearestB.smallestC.latestD.youngest

4.A.orderingB.sellingC.expectingD.improving

5.A.hatedB.enjoyedC.caredD.hoped

6.A.crazilyB.excitedlyC.curiouslyD.directly

7.A.countingB.namingC.showingD.reaching

8.A.ImmediatelyB.CarefullyC.AngrilyD.Easily

9.A.sawB.missedC.forgetD.left

10.A.truthB.storyC.adventureD.accident

11.A.lectureB.houseC.officeD.activity

12.A.evenifB.apartfromC.sothatD.exceptthat

13.A.troublesomeB.carelessC.activeD.quiet

14.A.foundB.caughtC.punishedD.wounded

15.A.goestoB.belongstoC.worksD.plays

第二节语法填空(共10小题;每小题l5分.满分15分)

阅读下面短文,按照句子结构的语法性和上下文连贯的要求,在空格处填入一个适当的词或使用括号中词语的正确形式填空,并将答案填写在答题卡标号为16—25的相应位置上。

Wemusthavewatertolive.____16_____thewaterweuseiscleanandfresh,itwillmakeusill.Theanimals____17____(live)inandaroundlakesandriversmustalsohavecleanwater.Ourriversandlakessupplymostofourwater.Theclear,bluewaterfoundbythefirstAmericansettlershaschanged.Manyofourwatersourcesarenow___18____(dirt).Theyarefilled____19_____dirtandwastewhichcannotbecleanedout.Inmanyplaces,waterisnotsafeforustouse.

LakeEriewas_____20______abeautifullake.Nowithasbeencalled“adyinglake”.Wastefromnearbyhomesandfactorieshasbeendumpedinto____21_______.Fishcannolongerliveinmuchofitspollutedwater.GeorgeWashingtononcecalledthePotomac“____22_____finestriverintheworld”.Nowitswaterisnolongerblue.Instead,itissoupygreen.Suds(肥皂泡沫),fromdetergents(洗涤剂;洗衣粉)usedtowashclothes,oftencoverthewaterofourrivers.

Watercannotbe____23_____(make)inafactory.Oncewaterispolluted,itis____24____tomakeitcleanandsafeagain.Wemustlearntotakecareofthewater_____25______wenowhave.

Ⅱ.阅读(共两节,满分40分)

第—节阅读理解(共15小题;每小题2分,满分30分)

阅读下列短文,从26—45题所给的A、B、C和D项中,选出最佳选项,并在答题卡上将该项涂黑。

A

Since1989,DaveThomas,whodiedatage69,wasoneofthemostrecognizablefacesonTV.Heappearedinmorethan800mercials(商业广告)forthehamburgerchainnamedforhisdaughter.“Aslongasitworks,"hesaidin1991,“I'llcontinuetodothosemercials."

Eventhoughhewassuccessful,Thomasremainedtroubledbyhischildhood.“Hestillwon'tletanyoneseehisfeet,whichareoutofshapebecauseheneverhadproperfittingshoes,"Wendysaidin1993.Borntoasinglemother,hewasadopted(收养)asababybyRexandAulevaThomasofKalamazooinMichigan.AfterAulevadiedwhenhewas5,ThomasspentyearsontheroadasRextraveledaroundseekingconstructionwork.“Hefedme,"Thomassaid,“andifIgoutofline,he'dbeatme."

Movingoutonhisownat15,Thomasworked,firstasawaiter,inmanyrestaurants.Buthehadsomethingmuchbetterinmind.“IthoughtifIownedarestaurant,"hesaid,“Icouldeatforfree."A1956meetingwithHarlandSandersledThomastoacareerasthemanagerofaKentuckyFriedChickenrestaurantthatmadehimamillionairein1968.

In1969,afterbreakingwithSanders,ThomasstartedthefirstWendy'sOldFashionedHamburgers,inColumbus,Ohio,whichsetitselfapartbyservingmadetoorderburgers.With6,000restaurantsworldwide,thechainnowmakes$6billionayearinsales.

Althoughtroubledbyhisownexperiencewithadoption,Thomas,marriedsince1954toLorraine,66,andwithfourgrownkidsbesidesWendy,feltitcouldofferafutureforotherchildren.HestartedtheDaveThomasFoundation(基金会)forAdoptionin1992.

In1993,Thomas,whohadleftschoolat15,graduatedfromCoconutCreekHighSchoolinFlorida.HeeventookLorrainetothegraduationdanceparty.ThekidsvotedhimMostLikelytoSucceed.

“TheDaveyousawonTVwastherealDave,"saysfriendPatWilliams.“Hewasn'tagreatactororagreatspeaker.HewasjustJoeEverybody."

26.Whatisthearticlemainlyabout?

A.ThelifeofDaveThomas.B.ThedreamofDaveThomas.

C.TheschoolingofDaveThomas.D.ThegrowthofDaveThomas'sbusiness.

27.Whatdoweknowabouthischildhood?

A.Helivedapoorlife.B.Hehadcaringparents.

C.Hestayedinoneplace.D.Hedidn'tgotoschool.

28.ChoosetherighttimeorderofthefollowingeventsinThomas'slife.

a.graduatedfromhighschoolb.startedhisownbusiness

c.becameamillionaired.startedafoundatione.metHarlandSanders

A.e,b,c,d,a,B.a,e,c,b,d,

C.e,c,b,d,a,D.a,e,b,c,d,

29.“HewasjustJoeEverybody."(inthelastparagraph)means_______.

A.DavewasfamousB.Davewasordinary

C.DavewasshowyD.Davewasshy

30.WhatisthenameofDaveThomas'sbusiness?

A.Thomas's.B.Wendy's.C.Lorraine's.D.Rex's.

B

Londonhasmorethanninemillionvisitorseveryyear.TheyeandvisitsomeofthemostfamousplacesinEngland:

BigBen,theTowerofLondonandtheRiverThames.

YoucanseesomeofthemostinterestingplacesinLondonbygettingonthetourbuses.OryoucantakearideontheLondonEye.Thislargewheelslowlytakesyou135mabovetheRiverThames.

TheRiverThamesisLondon’smainwaterway.Ithasshapedthecapital’slandscape,historyandgeography.Sooneofthebestwaysofknowingmoreaboutthecityistotakeatripalongtheriver.

TheclocktoweroftheHousesofParliament,BigBen,hasbeeoneofthemainsymbolsofLondon.Thesoundofthebell,whichyoucanhearatthebeginningofmanytelevisionandradioprogrammes,hasbeewell-knownthroughoutthenation.

NovisittoLondonispletewithoutalookattheTowerofLondon,intheeasternpartofthecity.AfterBigBen,theTowermaybeLondon’smostvisitedtouristspot.DirectlysouthisTowerBridge,whichismorethan100yearsold.

AlongallthepalacesinLondon,BuckinghamPalaceisthemostfamous.IthasbeenthemainLondonhomeoftheroyalfamilysinceQueenVictoriamovedtherein1873.YoucanvisitsomeoftheroomsinAugustandSeptember.Andmostmorningsoftheyearyoucanwatchthesoldiersoutsidechangingtheguard.

AboutonehourbytrainoutofLondonistheTowerofWindsor.HereyoucanvisitanotheroftheQueen’shomes-WindsorCastle.Therewasafirein1992andmanyoftheroomswerebadlyburned.Butnowtheyarefullofbeautifulpictures,tablesandchairsagain.

SightseeinginLondonisgreat,butitcangetverytiring.So,thebestwaytostartthedayistofillupwithanEnglishbreakfast.

YoucanbuyanEnglishbreakfastinnearlyeveryhot

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