二全国0所名校高考模拟金典卷答案BD解题分析本题考查波的多解问题。由题图知简谐波的波长λ=8。①若波沿x轴正方向传播,质点Q向上振动,第一次达到波谷的时间是是T,即子T=2s,所以T=号s:质点P左侧第二个波峰处质点的衡位置到质点P的衡位置的距离是15m=名,它的振动形式传到质点P的时间△=吕T,即△=5s,B项正确。@若波沿x轴负方向传播,质点Q向下振动,第一次达到波谷的时间是}T,即T=2s,所以T=8s;质点P右侧第三个波蜂处质点的衡位置到质点P的衡位置的距离是9m=号1,它的振动形式传到质点P的时间△=号T,即△t=9s,D项正确。9.2023年4月15日,“神舟十五号”航天员乘组进行了第四次出舱活动。在地面工作人员和舱内航天员邓清明的密切配合下,两名出舱航天员费俊龙、张陆圆满完成全部既定工作任务。若把“天和核心舱”的运动看成是绕地球运行的匀速圆周运动,一航天爱好者研究发现,在航天员从打开舱门到完成出舱活动的时间t内,“天和核心舱”绕地心转过的角度是O。已知地球的半径为R,地球表面的重力加速度大小为g,引力常量为G,不考虑地球自转,由此可知A.“天和核心舱”绕地球转动的周期是及“天和核心船的镜道高度是-RC.航天员在随“天和核心舱”运行的过程中受到的重力为0D地球质量可表示为或袋客案AB解题分析本题考查万有引力定律、牛顿运动定律、圆周运动的相关知识点。“天和核心舱”在时间t内绕地球球心转过的角度是0,则其角速度w=?,又周期T=2红,故T=2受,A项正确:根据牛顿第二定律,由万有引力Mm提供向心力,则有GR+=mw(R+h),又gR=GM,联立解得h=√RF一R,B项正确;航天员在随“天和Mm核心舱”运行的过程中处于完全失重状态,重力依然存在,C项错误;由GR+=mw(R+h),解得M=(R+h)_伊(R+h),D项错误。GG10.由绝缘导线绕成的n=100匝正方形线圈ABDE,边长L=40cm,其内阻r=22,将线圈的首尾两端接入如图甲所示的电路,三个定值电阻的阻值分别为R,=22,R2=R=42,电容器的电容C=4F。线圈所在区域存在垂直纸面向里的匀强磁场,磁感应强度随时间变化的规律如图乙所示。下列说法正确的是B/TXX1.0+0.4××××t/sED2甲乙A.1s末,通过R1的电流为0.6AB.3s末,R2两端的电压为2.4V【24新高考·JD·物理-HUN)
21.(12分)(二)选考题:共10分.请考生在第22、23题中任选一题作答.如果多做,则按所做的第一题计分,已知A,A,分别是椭圆C:+=1(a>b>0)的左、右顶点,B,F分别是C的上顶点和左作答时用2B铅笔在答题卡上把所选题号后的方框涂黑.6322.(10分)选修4-4:坐标系与参数方程焦点,点P在C上,且满足PF⊥A1A2,A2B∥OP,|FA2|=2+√2.(1)求椭圆C的方程;在直角坐标系0y中,直线1的参数方程为=1+a,(4为参数,0≤&<.以坐标ly =2+tsin a(2)过点F的直线(与x轴不重合)交C于M,N两点,设直线A,M,A,N的斜率分别为k1,k2,求证:k2为定值,原点为极点,x轴正半轴为极轴建立极坐标系,曲线C的极坐标方程为P=4√1+3c0s20(1)求1的普通方程和C的直角坐标方程;(2)设直线1与曲线C交于A,B两点,若P(-1,2)为弦AB的中点,求弦长|AB|.23.(10分)选修4-5:不等式选讲已知a,b,c均为正数,且满足a+2b+3c=12.(1)证明:(a+1)(b+1)(c+1)≤36:线(2)证明:a2+462+9c2≥48.《同一卷·高考押题》文数4一7(共8页)《同一卷·高考押题》文数4一8(共8页)
则,可知一马▲不题考查质谱位甲题分析】粒子在*全闲4全国100所名校高考模拟示范卷速度容示明必高含州001国全点,设B通过D点的最小速度为vmm,则有/代D④LgESD火两弧的临立d时园金好(:)代)E O0mg®()2=2同一0.5L→可【命(农1)。一·1=☑分市F合=√/(mg)2+(gE)2=√2mg(1分)摩tan0=E-1,解得0=45°1分)D71g传送离用的收州颜金新面对B以最小速度通过D点分析,有力为小1受到Fo-R2(1分)增大艺成油干年由部,点蛋周圆,额的小拉盟本回意西命】,g均解得m=√2gR=√图】本8妇由,点训量匣齿置公微呼人从人(1)【砖众跟喻】B以最小速度从D点运动到圆弧最高点,设在圆弧最高点B的最小速度为号几何工四v一何所有qERsin0-mg(R-Rcos0)=号ms-2ma21分》1题考(=一可亦,谷比受AW点因到解得5=√(3√2-2)gR(3√2-2)gL衰变=√81分)0比面的外永识明,四心一卧用。98子核设此时处于电场中的桌面长度为a,则有-2马mg2R号mm1气1分)核不(代)解得d=143巨L。16(1分)同示等(代)图v=3,0=u溜电场线什,中登近点高量全临空司面的过改D项小,」血染险密度用点绿县目振动移,所振动频(代)1x月动时受简谐执(代)列用行认箭:X4RA是效容前中过合夏数身点1明小圆回卧大合受间州动0的联国的小好四(○1,·物理卷参考答案(五)第6页(共6页)。页n【24,(新高考)ZX·M·物理·JD也心连知卫星月景
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11.已知△ABC中,a,b,c为角A,B,C的对边,acos B+bcos A=csin C,若∠BAC与∠ABC的内角分线交于点I,△ABC的外接圆半径为√2,则△IAB面积的最大值为()A.2√2-2B.4√2-4C.√2-1D.2-212.已知a=2,6=2c=8-81n2,则C.a
参考答案:1.B2.C3.A4.C5.D6.A7.D8.D9.C10.A11.B12.B由ae8=0.8e,be12=1.2e,ce6=1.6e,用28.合是台总令点则r)专当x<1时,f叫)>0,当x>1时,()<0,所以f(x)在(-0,1)上是增函数,在(1,+∞)上是减函数,于是f(1.2)>f(1.6),即f(b)>f(c),又b,c∈(0,1),所以b>c;4c0.81.60.80.8×20.8e8-2ee°e0se6ese8xeo8=eo8×e08因为54=625>29=512,所以54>24×25,2,>2因此e8-2>〔)-20,于是f回9,又ce0),所以se,令8因-后。则go-长兰-0-6e6so,所以a在e42()上是指两藏,8880,器98c0,即号<0,二号f(0.8)
听第8段材料,回答第10至13题第10.Which of the following TV programs involves ordinary第M:Is it very valuable?I mean,I know you don'tpeople?A.Jungle Fun.Bake Off.want to sell it,but is it worth a lot of money?C.Big Brother.11.Who is probably the most famous?W:No,not at all.It's just an ordinary watch,but分A.The politician.B.The policewoman.分it's special to me because it really reminds meThe Asian lady.of my grandfather.(16)听12.What is the woman's attitude to the politician'sM:Is your grandfather still alive?behavior in the jungle show?听W:No.He passed away two years ago and left meA.Disappointed.B.Confused.Supportive.this watch in his will.(17)13.What are the speakers mainly talking about?TV shows.B.Big stars.C.Political eventsText 8听第10段材料,回答第18至20题。第M:There are so many reality TV shows these days.第18.Whom is the speaker talking to?(13)A.Great doctors.W:I like Bake Off.At least it doesn't use big stars,B.Visiting professors.雾like Jungle Fun and Big Brother.Ordinarypeople are also involved.(10)努Medical students.19.How long will the tour last?M:Yes,but they will become stars soon.Do youA.About one hour.remember that policewoman?Now she has herAbout five hours.C.About six hours.力own show.And the teacher now writes recipe力20.Where is the group most likely to go next?books.A.To the cafeteria.W:And that Asian lady is never off TV or radioB.To the lecture halldays.She's the biggest star of all.(11)gTo the research center.M:But TV shows like this can also ruin people'sText 10第reputations.What about the polifician who tookGood afternoon,everyone!I'm glad all of youpart in the jungle show?No one has taken him第have the chance to meet one another.Everyone inseriously since they saw him making noises likethis crowd is newly admitted into our medicala cat.program.As you know,this university is one of the分W:Well,I disagree.I think it's good that serious分best in the world.Therefore,in this group there maypeople can show their human side.There's nobe some of the top dentists,researchers and surgeonsharm in them showing that they can be just asof the future.(18)Of course,our university shares a力silly as the rest of us.(12)M:Maybe.But I don't think I would behave like力community with other leading medical schools likeOxford University and the University of Torontothat on TV if I was being watched by millionsWhen you study here,you don't just study forof people.yourself;you study for the greater good of the wo听第9段材料,回答第14至17题,Very inspiring indeed!Right now,it's one o'clock第14.What is the watch like?(19)We will first visit scientific areas such as⑨It is quiteo.B.It has a black face.第C.It has a white band.laboratories and research centers.(20)Next,we'llvisit the lecture hall.You'll soon take your first-year部15.When did Bella's grandfather come to England?A.Over 60 years ago.Over 50 years ago.部courses there.Then,we will end up in the dormitoryC.Over 20 years ago.and finally the cafeteria,where we will end our trip.16.Why is the watch special to Bella?A.It is worth a lot of money.That should be around six o'clock.(19)After that,I听It is from her grandfather.听suppose you'll be tired and hungry,so you can haveC.It is her 2Ist birthday present.17.What do we know about Bella's grandfather?力supper in the cafeteria.It's very convenient.SinceHe died two years ago.we have a lot to see,let's begin with the scientificB.He got the watch from his father.areas on our campus immediately.(20)EverybogC.He went to England without any money.follow me please!Text 9第W:I'd like to show you a special watch.It's almost sixtyyears old.(14)It has a black leather band.The face of第the watch is white.Though it doesn't tell the right time,部it's very special to me.21.What causes swirls and bursts of fun rainbowM:Where did you get it,Bella?colors in the experiment?W:Well,it was my grandfather's watch.He wore it when分A.The overuse of dish soap.he arrived in England more than fifty years ago.(15)听When he came over here,he didn't have much moneyB.The temperature of the milk.just a few pounds in his pocket,you know.But this读C.The food coloring left in the shallow dishwatch was a gift from his grandfather for his twentyThe interaction between dish soap and milk.first birthday,so it was really special to him,andnow it's special to me.
x=2令z=2y-×,即y支X+号表示斜率为立,数裁距为号的行直线系。11画直线6:y=2X,移直线6到直线,当直线(过点A时,直线(的纵截距最小,Z最小,即Zmn=2×(-1)-2=4,所以2y-x的最小值为-4.故答案为:-415.某玩具厂计划设计一款玩具,准备将一个棱长为4c的正四面体(所有棱长都相等的三棱锥)密封在一个圆柱形容器内,并且这个正四面体在该圆柱形容器内可以任意转动,则该圆柱形容器内壁高的最小值为cm.【答案】26【解析】【分析】依题意该正四面体内接于该圆柱的内切球时,圆柱形容器内壁高的最小,则正四面体外接球的直径即为圆柱形容器内壁的高,求出正四面体外接球的半径,即可得解。【详解】依题意该圆柱内放置一个棱长为4c的正四面体,并且正四面体在该圆柱内可以任意转动,则该正四面体内接于该圆柱的内切球时,圆柱形容器内壁高最小,则正四面体外接球的直径即为圆柱形容器内壁的高,如图正四面体P-ABC,设点P在面ABC内的射影为H,即PH⊥面ABC,43则武心O在PH上,AHAB,cos303所以PH=VPA2-AH2=,/42434W63设外接同的半径为R,OP=OA=R,所以OH=PH-OP-45-R.3在Rt△OAH中,OAP=OH2+AH,即R2=42-R433+3
日1、本试圈满分150分,考试时间120分钟,2、答卷前务必将自已的姓名、学校、班级、准考证号填写在答题卡和答题纸上3、将选邦恩答案填涂在答题卡上,非选择愿按照图号完成在各肠纸上的指定区域内。89誉d第I卷(选择题共60分)114一、选择题:本大题共12小题,每小题5分,共60分在每小题给出的四个选项中,只有一项是符合题目要求的1、若复数z满足(1-2i)z=2+i,则|z=A号B.1.小本)1转数D.√J4152.已知集合A={0l,2,3},B={xx(x-4)<0},则AUB=A.{12,3}B.{x0 (2)若fx+a)-回a>0,则y=fx)是R=2.设六棱锥P-ABCDEF以T=2a为周期的周期函数,(3)若函数y=f(x)的图象关于直线x=a与的高为h,则VPARCDEF=3x=b(a
5.What is the man's pet's name?5AA.Willie.学美花报社B.Mike.C.Harry.EARNING ENGLISH听力材料Text5W:What a cute pet!What's his name,Mike?新课程M:I named him Willie,after my favorite singer,第40期Willie Nelson.(5)高一(B)必修3TEST YOURSELFW:Great name!Still,I'm surprised you didn't(期中质检卷)name him Harry,after your favorite bookgcharacter.第第一节1B第二节1.What are the speakers talking about?听第6段材料,回答第6、7题。④6-7BCA.A pair of jeans.B.A pair of shoes6.What will the man do this afternoon?分C.A pair of gloves.A.See a movie.听力材料Text1B.Take some photos.听M:Wow!They're so pretty and you do look tallerC.Do some shopping.in them!(1)7.When will the speakers meet today?W:Now I need to take them off.They're killing myA.At 2 pm.feet.(1)Ouch,what a pain!B.At 6 pm.度C.At 7 pm.2.Where does the conversation probably take 2 C听力材料Text6place?④W:What are your plans for the afternoon,Mark?NickA.At a bakery store.and I are going to the movies.Do you want to join us?B.At a restaurant.M:I'd love to,but I have to meet Linda.She has an onlineshop selling men's clothes and she wants me to takeC.At the man's home.some photographs for it.(6)I'm meeting her in her听力材料Text2apartment at two.W:Then let's meet for dinner,shall we?How about theW:This bread tastes so good!Did you make itThai Food House we went to last Friday?I'll see youyourself?there at about six o'clock.M:No.My wife got it from the supermarket thisM:I'm afraid it won't be finished then.How about seven?gmorning.(2)g(7)W:Sure,see you.3.What does the man think of the weather inXi'an?④3A听第7段材料,回答第8、9题。8-9ACA.It's too cold.8.Which floor does the woman want to go to?B.It's too warm.A.The 23rd floor.C.It's too wet.B.The 15th floor.听力材料Text3C.The 5th floor.9.Who does the woman think caused the problem?W:Do you like the weather in Xi'an?A.The man.M:Er...too cold for me.(3)I must say I'm used tothe warm winter in Hong Kong.B.The apple seller.W:But I think it's much better than some southernC.The woman with the bags.cities where it is not only cold but also wet原听力材料Text74.What will Mary do first?A.Visit a college.M:What happened?All I did was push the button for theB.Attend a course.15th floor.W:And I just pushed the one for the 23rd floor.(8)C.Go on a vacationM:Did you push the red HELP button?They need to听力材料Text4know we are stuck here.W:No,I'm doing it right now.The lady who got off on theM:Has Mary decided what to do before she goes to5th floor surely took her time getting off.I bet that'scollege?what caused the problem.(9)She was holding the doorW:Oh,yes.She has got everything planned out.She'sfor about five minutes while she was getting out.going to have a holiday for a few weeks and thenM:She was carrying a lot of bags.(9)Look!She droppedshe will attend an English course.(4)an apple on the floor here.Do you want it?W:No,I don't want a snack.I just want to be rescued. 11所以当sm(20+司-1时,0f取得最大位2310分23【解折1W迪柯西不等式可得1xw②1+(周月2233分621所以Vx+V<2,当且仅当x3,y=时等号成立5分a長g(++((g++月41++?+442+5)36,8分11当且仅当x2=4y2,即=2,y=4时等号成立10分走向重点口2022年高考密破考情卷☐宁夏(八)【命题报告】试题难度试题来源预期题型题号分值考查的主要知识易中难(填原创或改造)得分率选择题15集合的交集与补集原创0.9选择题25复数的几何意义原创0.9选择题5函数的周期性原创0.7选择题45古典概型原创0.9选择题55函数的奇偶性原创0.7选择题65数学文化,扇形面积改编0.5选择题1三角函数的定义,二倍角原创0.9选择题5诱导公式,信息题课本改编0.9选择题95V基本不等式原创0.7选择题105等差数列的性质原创0.7选择题115直线与圆原创0.3选择题5函数与导数,不等关系原创0.7填空题135共渐近线双曲线方程改编0.9填空题14线性规划原创0.7 显然△>0,且新杨=9名=月(Ⅱ)由题意可知,直线1的斜率为-1,设其方程为y=-x+b,即x+y-b=0,由弦长公式得181=属场-4=V1可罗-4x(-亭=15,~圆心M(4,4)到直线1的距离为4,8-6=4化简得|8-b1=42,解得b=8-45,或6=8+42,又点0到直线AB的距离d=山-2五2.直线1的直角坐标方程为x+y-8+4万=0或x+y-8-45=0,5m号1d号-4g…(12分)》根据任8,(y=psin 6,21.解:(I)由题意可得f(0)=-1=a,此时f八x)=sin2x-e-x,得直线l的极坐标方程为pcos0+psin0-8+4、5=0或pcos0+psin0-8-4、反=0.…(10分)f'(x)=sin 2x-e'-1,-2x,x<-1.切线的斜率为∫'(0)=-2,23.解:(I)fx)=|x-1+x+1=2,-1≤x≤1,.切线方程为y+1=-2(x-0),即y=-2x-1,…(5分)2x,x>1,(I)i证明:g(x)=(x)+os2x-a3=ae-a(00,得x>-lna,令g'(x)<0,得x<-lna,不等式到3的解集为1到<字引,∴g(x)在(-∞,-lna)上单调递减,在(-lna,+o)上单调递增,(Ⅱ)二次函数y=-x2-2x+m=-(x+1)2+1+m,g(x)≥g(-lna)=1+lna-a,…(7分))故知函数y=-xX2-2x+m在x=-1处取得最大值1+m,令r(a)=1+lna-a(0p(1)=0,∴g(-2lna)>0,∴.g(x)在(-lna,-2lna)上有一个零点,综上所述,当0
b故b=csnB.4sin(C+)弦定理,c=sinC sin BsinC2imc+25oC-2+25sin CsinCnCe(2),故选A2+2510、【答案】C【解析】依题意,号号-(的.则7≥,故o1,国为-+1问=0,货0为11π5π_3rTx2+p=T+2kπkeD,5π2函数闪图象的一个对称中心,则8-名=年-4,故T=3玩,故0=死=子:而g×行+p3π32解得p吾则四=2号+0:放80=20治,合号+2r≤2+经42mke0,解有2经≤:北e0.双案可知越C2411.【答案)}【解折】由题知,80-2m-名+合=2mar答+急,g(x)是偶函数,,0>0,02.kZ,0=-6k-6122+14912.【答案】【解折】依愿意,5血2a+6os2a-2 i+coe2a=m2c.2ama+1-am2g_士cos2a+sin2a1+tan2a1912+9-4179+413【解折析】依题意,f)=cosx+os=osx(0sx≥0)313.【答案】故函数f(x)在[0,]上单调递2cosx(cosx<0)减.在怀2闲上单调超指,故[V闪l=0=了2)[V]-问专故所球值域为[引递地,故:一的最大值为号(受誓sin(B+C)1115.【答案】√0【解析】依题意,记A,B,C对应的边分别是a,b,c,故sinAsin B2cos(4+B)sin B-2cosC即血B=2如4asC,故b=Va,由BC4C=22,所以b=22,即0=5,由余弦定理知,b=2C=d+-2 ab=2+4+452-10,所以c=0=B.16.【解折】D-2o83=2os8m3=1-45-3=2-45,4分(2)f(x)=2cos2x-8sinx-3=-2sin2x-8sinx-1=-2(sinx+2)2+7.(6因为-1≤sinx≤1,故1≤sinx+2≤3,故-11≤-2(sinx+2)}+7≤5,故f)的值域为[-11,5,(12分)17.【解析】(1)若选①:由正弦定理得,sin AcosC+sinCeos4-in,故n(+C-inBos,2分)4而在△MBC中,5n(4+9=加6r-)=nB,故mB=9 in o,则asB=行5,(3分)则血B=os2B=2,则amB=如82,故am2B1-am2B1-92X77:(6分)2tan B23.16245cosB 416专题07数学答案与解析第2页 “部+船≥”的,当角位当=形的锐等乡龙影物线的对路作可知,=脚=警我中=的一学,五=梦一号复16【答案列【g狮1a1-3=a,-2.+1)4=号1一3=一出一24一=(0,一1>与4>,到列乡每男克弹,女0+1=话-,+1,441-1=4,(a,-1)>0,,mw4>a>w>>2,1,0Sw,的整劲福分是11,(答案11)路(2号【解新1(1)证明:连丝BD,E,F分别是核AC,BC的中点,EP∥AB:EFC面CEF,AB吐面CEF,,AB∥面CEFD,F分别是烧B,C,BC的中点,BF∥CD,BF=CD.,四边形BDCF是行四边形,则BD∥CF,CGFC面CEF,BDt面CEF,,BD∥面CEF,,AB,BDC面ABD,且AB门BD=B,源ABD∥面CEF:ADC面ABD,,AD∥面GEF;分(2)取A1C的中点O,连批OB,OE,易证OB,OC,OE两两垂直,则以O为原点,分别以0B,OC,O龙的方向为工,y,2轴的正方向,建立如图所示的空同直角坐标系,设AB=4,则(0,-2,3,(0,2,0),D(B,1,0),E(0,0,3),F(B,1,3),头而i=(B,3,-3),A2=(0,2,0),C2-(0,-2,3,E乎=,1,0,……8分设面ADE的法向量为n=(x,头,名),则n,Ai=gx+3外-3z=0,n·A2=2y=0:9令1-3,得n=B,0,1,难料数学答案第3页(共5页)



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