高一下学期开学考数学试题2含答案Word下载.docx
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高一下学期开学考数学试题2含答案Word下载.docx
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4.已知函数,若
有6个不同的零点,则a的取值范围是.
5.已知函数=的最大值不大于,又当时,恒成立,则实数的值为
6.某地街道呈现东——西、南——北向的网络状,相邻街距都为1,两街道相交的点称为格点。
若以相互垂直的两条街道为轴建立直角坐标系,现有下述格点(-2,2),(3,1),(3,4),(-2,3),(4,5)为报刊零售店,请确定一个格点为发行站,使5个零售点沿街道到发行站之间路程的和最短。
二、解答题(7+7=14)
7.对于任意的正实数,已知关于的方程的解存在。
(1)证明:
该方程的解唯一;
(2)若将该方程的解记为,则我们可以用符号“”来表示一些方程的解,例如方程的解为。
试解方程。
高一数学(第2卷)
黄继红孙金明
③④中偶函数的有②④写出所有正确的序号
3.设函数,且,则此函数的单调递减区间为
5.已知函数=在上的最大值不大于,又当时,恒成立,则实数的值为
(3,3)
解:
(1)略
(2)
2019-2020年高一下学期2月开学考英语试题1无答案
肖洁辉葛韵华
Ⅰ.Listeningprehension(20%)
SectionAShortconversations
Directions:
InSectionA,youwillheartenshortconversationsbetweentwospeakers.Attheendofeachconversation,aquestionwillbeaskedaboutwhatwassaid.Theconversationsandthequestionswillbespokenonlyonce.Afteryouhearaconversationandquestionaboutit,readthefourpossibleanswersonyourpaper,anddecidewhichoneisthebestanswertothequestionyouhaveheard.
1.A.5:
00B.5:
15C.5:
30D.5:
45
2.A.Lookforamoreexpensivehotel.
B.Gotoanotherhotelbybus.
C.Trytofindaquietplace.
D.Takeawalkaroundthecity.
3.A.Shelostherway.B.Shelostherkeys.
C.Shelosthercar.D.Shelostherhandbag.
4.A.ThewomanwouldunderstandifshedidMary’sjob.
B.ThewomanshoulddothetypingforMary.
C.ThewomanshouldworkashardasMary.
D.Thewomanisn’taskillfultypist.
5.A.Hegetsnervousveryeasily.
B.Hehasn’tpreparedhisspeechwell.
C.Heisanawfulspeaker.
D.Heisaninexperiencedspeaker.
6.A.Thisapplepietastesverynice.
B.Hismotherlikestheapplepieverymuch.
C.Theapplepiecan’tmatchhismother’s.
D.Hismothercan’tmakeapplepies.
7.A.Sheisnotinterestedinthearticle.
B.Shehasgiventhemanmuchtrouble.
C.Shewouldliketohaveacopyofthearticle.
D.Shedoesn’twanttotakethetroubletoreadthearticle.
8.A.Amovie.B.Alecture.C.Aplay.D.Aspeech.
9.A.HeisnotveryenthusiasticabouthisEnglishlessons.
B.HehasmadegreatprogressinhisEnglish.
C.Heisastudentofthemusicdepartment.
D.HeisnotveryinterestedinEnglishsongs.
10.A.Themanwenttoawrongcheck-incounter.
B.Themanhasjustmissedtheflight.
C.Theplanewillleaveat9:
14.
D.Theplane’sdeparturetimeremainsunknown.
SectionBPassages
InSectionB,youwillheartwoshortpassages,andyouwillbeaskedthreequestionsoneachofthepassages.Thepassageswillbereadtwice,thequestionswillbespokenonlyonce.Whenyouhearaquestion,readthefourpossibleanswersonyourpaperanddecidewhichonewouldbethebestanswertothequestionyouhaveheard.
Questions11through13arebasedonthefollowingpassage.
11.A.Twodrivershappenedtocrashintoeachotherinaparkingspace.
B.Anargumentoveraparkingspaceledtotwocarscrashingintoeachother.
C.Twodriverstriedtoparktheircarsinonesmallparkingspace.
D.Theparkingspacewastoosmalltoholdtwocarsatthesametime.
12.A.Theyoungerdriverwasquickerthantheolderdriver.
B.Eachofthemhadaveryexpensivecar.
C.Theydidn’tseeeachotherwhileparkinginthesameplace.
D.Bothofthemwerequitegoodatdriving.
13.A.Youarenotrichenoughtobuyanewcarlikemine.
B.Youaretoopoortopetewithmefortheparkingspace.
C.youwillneverberichenoughtoparkyourcarhere.
D.Onlyrichpeoplecanhavethedaringtodothat.
Questions14through16arebasedonthefollowingpassage.
14.A.Theteenagers’strangebehavior.
B.Theteenagers’criticismoftheirparents.
C.Thedominanceoftheparentsovertheirchildren.
D.Misunderstandingbetweenteenagersandtheirparents.
15.A.Becausetheywanttomaketheirparentsangry.
B.Becausetheyhavenootherwaytoenjoythemselves.
C.Becausetheyhaveastrongdesiretobeleadersinstyleandtaste.
D.Becausetheywanttoshowtheirexistencebycreatingacultureoftheirown.
16.A.theyshouldbeobedient.B.Theyshouldberesponsible.
C.theyshouldbeco-operative.D.Theyshouldbeindependent.
SectionCLongerconversation
InSectionC,youwillhearonelongerconversation.Theconversationwillbereadtwice.Afteryouheartheconversation,youarerequiredtofillinthenumberedblankswiththeinformationyouhavehea
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