所以BC=AB=3,即BD=28分根据余弦定理可得，AD=A+D-24R·msB=(,}2+）-2x5×号×(-2）-，所以AD=2T27放8C边上的中线长为受…12分21.【解析】(1)证明：连接AB交AB,于点Q,连接PQ,取AB中点0，连接C0,OQ,00∥AA,且00=方A,PC∥AM,PC=4,A∴.OQ∥PC,且OQ=PC,.四边形PQ0C为行四边形，∴.PQ∥C0.…………2分:△ABC为正三角形，.C0⊥AB,·面ABBA1⊥面ABC,面ABB1A1∩面ABC=AB,.C0⊥面ABB1A1,∴.PQ⊥面ABB,A1,又PQC面PB,A,.面PB1A⊥面ABBA1;……5分(2)由(1)得面PB1A⊥面ABB,A1,A,B⊥B,A,面ABB,A∩面PB,A=AB1,ABC面ABB1A1,∴.A,B⊥面PB,A,则即∠A,PQ为PA1与面PB,A所成的角，…8分又4Q-8=1m=00-24B=3,AP-Q+0-2.、.在Rt△A,PQ中，sin∠AP0=A,P=乞，AQ110分∠AQ∈[0，引，∠4Q=6故P1,与面PB,A所成角为看…12分22.【解析】(1)函数f(x)的定义域为R,过=g00+a)-x=g0+a)-g0=g00+0=g(10+a·10f-x)=lg(10-+a·10*),因为函数f(x)是偶函数，所以f(-x)=f(x),即lg(10+a·10)=lg(10*+a·10-),则有10-+a·10*=10*+a·10-,化简得(a-1)·(102-1)=0,高一数学参考答案第6页（共7页）

7.如图LEARNING器美评(上接第1、4版中缝)ENGLISH第3版芳美花LEARNINGENGLISH阅读理解1-4 CBAB(上接第2版)阅读填空1-5 GCEDA第二节（供5小题；每小题2.5分，满分12.5列完形填空ll the kids in the world it happened to1-5 CABDC6-10ADBAC阅读下面短文，从短文后的选项中选出可以填人金项。选项中有两项为多余选项ore an interview every time but I am11-15 DBADBworried people treated me like a kid语法填空Inspired by the ancient Olympic Games held in OI.a2.themselveshe athletes I've chatted to have been3.was establishedthe modern Summer Olympic Games began in the latebeen to some games as media,some4.devotion5.asChamonix,France,the first-ever Winter Olympics wereyou sure you're a journalist?'I guess6.that /which7.to bringfar,13 countries on three continents have hosted the Winteens."8.becoming9.specificallyOf all the cities that have historically hosted the W10.creativeonly three have hosted twice.Besides St.Moritz and Innsb第版B.Her business abilityGUIDED WRITINGLake Placid.3 In this text,we'll explore Lake Placid'D.Her interviews with celebrities.Winter Olympics.【写作训练】cism towards her?One possible version:For Lake Placid's first hosting of the Winter OlympicsB.She ignored it.Hello,everyone!In mynamed Godfrey Dewey to thank.Ba His speech paireD.She deleted it.view,space is worth exploringreputation as an excellent winter sports venue helped Lacfor we have benefited andat work?1932 Winter Olympics.will benefit a lot from it.39 Unlike the 1932 Olympics,global confliciseFirstly,it allows us to learnusly.more about what is beyond theappearance of television made it more difficult for this svere terrible」Earth.Secondly,the progresssuch a major event.With even more people coming to attework as a journalist.of space technology cana wider audience through TV,transportation and techniquAbbie?promote the scientific andB.Optimistic.technological progress of the第三音whole society,such as weatherD.Adaptable.satellites,whichhave benefited第一节（供15小题：每小题1分，满分15分）people all over the world.Thirdly,with further space阅读下面短文，从每题所给的A、B、C、D四个选exploration,we may solveexample,conscientiousness is importantthe population problem by入空白处的最佳选项。moving to other planets oneI'd grown up watching my father spend hours in owell as relationship and physical healthdaynever asked him how to 41 plants.I'd be too busy playwhile more consistent than changing,The more we learn aboutNow I had my own garden and I asked my father aboutanges in the environment,"said Brentthe universe,the more we"Having a garden is a lot of work.You need to pull wildat the University of Illinois at Urbana-will benefit from it.COLLECTIONthey'll kill whatever you've planted."gardenFor a week,I checked on the garden every day.4conspicuous"in paragraph I probably重点单词4】1.furthermore2.merelypassed,I checked on it less and less often.At the time,I3.altogether4.crucialmy career;I was disappointed with myself for 45 my cleC.Slight.D.Strange.5.foundation6.shelterjob that filled my spirit rather than my bank account.ffect young people's personality?7.a心.必不可少的，对…One day,I decided to visit the garden.No surpriselanding a job极重要的；维持生命所esponsibilities必需的rasses,and none of what I had planted had grown.The hyWere47 and the dahlias(大丽花)were not any bettersupposea to ao.,使烦恼费时间精方使担心；花and water the plants reguut their own safe同方（做in wud leuer.After a few months,I was 52 toearch results?ac台第二节（共10小题；每小题1.5分，满分15分）about personality?阅读下面短文，在空白处填入1个适当的单词或括号内单er the pandemic16.disciplined:disciplinaryChinese ballet dancer Chen Zhenwei left a deep 56.our environment.17.originalour environment.18.frequent(impress)on the audience from all over the world withperformance.19.calculation20.credible;ineredible"It's unbelievable.I never thought my dream 57W重点词块true someday,"Chen said,58.e

-

regularly.00a1)h☑uraly(natural),am buildingmuscle which adds weightthreatened animals and plan.(person)relationship also contributeswithout fat.It's never late to make aⅡ根据语境，用适当的关系词填空。dinia are strong.They support eachchange for the better.That'sall Thank youfor your time.1.Lily received a lot of birthday gifts,min the family.This is especially true第35期测试题参考答案were from her classmates.grandchildren and in turn feel quite1-5 BCBCA6-10 BACBA11-15 CACBA16-20 ABCCA2.My uncle has reached a pointich helps them feel their self-worth.21-25 CADCA26-30 DCABC36-40 EGDFAhas to stop smoking and drinking.gularly,playing and joking,which31-35 DDACC41-45 DBACB46-50 ADCCB3.Guana,native language is Spaa lot51-55 ADBCAworks as a translator in our company.56-65(One possible version)56.which57.on4.The movie I saw yesterday reminded me58.risky59.lengthtimelived with my grandpa60.Attacking61.mainlythe boys for a few minutes,but62.was published63.Ain the countrysideing didn't feel right.64.have found65.measuring皿，从方框中选择合适的单词并用其适当wards their home.Chloe knocked写作(One possible version)填空。第一节ce the door wasn't closed,ChloeDear Allening on the kitchen floor,next to aI'm Li Hua,the head of our school'smake,visit,write,use,standdidn't waste a second in callingsoccer club.Knowing that you are good atg calm by the time help arrived.soccer,I'm writing to invite you to takepart in a teacher-student soccer match to beher consciousness(意识)on theheld in our school.1.It is dangerous for young kidsThe match will take place at the indoorknives without guidanceer kids from the stretcher(担架)stadium next Friday afternoon.And its twothere fore preparing to take her awaysides are the student team and the teacher2.The statue,whichteam.Divided into two halves,the matchthan forty years,is in bad condition nowcare of them.”will last for 30 minutes,during which theplayers can take a 10-minute break.3.Richard told his friend that hee kids like a grandmother.Shethe Space Museum two weeks before.cially made for Eva.Chloe fedI believe your participation will make thesoccermatch quite exciting.Looking4.The creative girlseveraln.Looking at the children,sheforward to your participation.Yours,before she graduated from university.her little Eva.Li Hua5.In my view,it is necessary for students第二节Paragraph 1:a plan at the beginning of the new term.m the hospital,the kids hadA few weeks later,when Peter wasV.根据括号内的要求改写或合并下列returning home earlier one day,somethingunexpected caught his attention.He并保持句意不变。stopped and found his mother working at a1.The singer spent about a week composconstruction site near their house.Peter'smusic for his new album.(用it作形eyes widened as he saw his mother carryheavy bricks from one end of the site to the改写)other.She wasn't wearing gloves to protecther hands and had no machine to help her.Seeing that,Peter regretted being rude tohis mother the other day and understood2"We are discussing how to solve thiswhy her hands weren't soft and beautifulnow,”said Helen..(用间接引语改写)like other women.Peter felt ashamed forsat together,there was adisrespecting his mother and hurried homewith a heavy heart.第35期T1版Kes:(One possible version,客Paragraph 2:语法检测Later that night,Peter decided to apologizeI.1.to translate 2.had seen3.whetheto his mother."I'm sorry for being rude to4.worked5.that6.whereyou,Mom.I know why your hands are soⅡ.l.to provide2.will be lyingrough and hard,"he said.Catherine gave3.was watching4.studiedhim a confused look,but before she could5.leaves6.has been takingask anything,Peter told her that he saw herIII.1-7 GFDCBEAworking at the construction site.CatherineIV.was shocked but breathed a sigh of relief.1.It is a great challenge for many peopleShe didn't have to keep her job a secret.答案见下期中缝She immediately hugged her son and toldmountain.him not to worry about anything."I love you电子信箱：yb123@126.c0guys more than anyoneelse in this world!"son's cheek报·辅导测评周刊》高一、高二、高三年级每

Y7=2,3十m=8,解得m=2.-号-,解析sin2490°=sin(7×36060sin 0cos =士√5。当m=√5时，r=2w2,x169,因为9∈(0，x),所以sin0>0,cos0

B.The main features of Indian elephants.C.The problems caused by Indian elphants.D.The severity of ndin elephantssituion34.How does the SMART work?A.By completely preventing hunting.B.Bynd epringdd omC.By founding the Wildlife Conservation Society.D.By counting the population of wildlife.35.What's the purpose of this text?A.To advertise for Indian elephants.B.To attract tourists to watch Indian elephants.C.To appeal to people to protect Indian elephants.D.To introduce Spatial Monitoring and Reporting Tool.第二节（共5小题：每小题2.5分，满分12.5分）阅读下面短文，从短文后的选项中选出可以填人空白处的最佳选项。选项中有两项为多余选项There are all kinds of reasons why people struggle to get up in the morning.It can be dif-ficult to leave the comfort of a warm bed,especially when cold outside.Sometimes,the needto stay under the duvet(羽绒被)might come from feeling overwhelmed(被压垮的)by thethought of the tasks that lie ahead.36 Thankfully,you can ease the transition from nightto day.Get enough sleep.As obvious as it sounds,sleep deprivation (builds up gradually,so try to notice how rested you feel upon waking.The suggested amount for teens is between8 and 10 hours a night,but there's no "right"figure.37Getting enough sleep can be a challenge in the teen years because there's a change in thebrain's production of a hormone called melatonin(褪黑素)，which brings about feelings ofseepness Melatonin is thought to be produced later at night in teenagers.It'spossi-be that the produetion of meaonidelayed by lookinatseresoswitch off fromdevices early in the evening.Shineifficuall asephendoight The sleep-producingchemical the body mkein he y waking and ca take between d90 teoade,cuing that o(无力的）einkerto youreyes.How can you accelerate the process?Tryto repi(kngl with the daw,lng the bodytime to adjust to the new day.If you have thick curtains,it can be a good idea to leave themopen a crack so that light comes in.A.So it's more difficult to fall asleep early.B.Just don'be tempted to get back under the cover【高三英语第？页（共10页）】·23-365C·

听下面一段对话，回答第6和第7两个小题。现在，你有10秒钟的时间阅读这两个小题。(Text 6)M:So,what do you want to do tomorrow?W:Well,let's look at this city guide here.Uh,here's something interesting.Why don't wefirst visit the art museum in the morning?M:OK.I like this idea.And where do you want to have lunch?W:How about going to an Italian restaurant?The guide recommends one downtown,just afew blocks from the museum.M:It sounds great.After that,what do you think about visiting the zoo?Well,it says herethat there are some very unique animals not found anywhere else.听下面一段对话，回答第8和第9两个小题。现在，你有10秒钟的时间阅读这两个小题。(Text 7)M:Oh,no,Kelsey.I lost my car keys.What should I do?W:Check the lost and found,Tim.It's in the main office.Maybe someone saw them andbrought them there.M:Okay,good idea.What if they're not there?W:Try to think about the last time you had them.Do you remember?M:Well,I drove here to work this morning.Then I went to my friend David's office to sayhi.Then I came up here to my office.They must be in David's office!I'll go to have alook.Thanks for your help,Kelsey!听下面一段对话，回答第10至第12三个小题。现在，你有15秒钟的时间阅读这三个小题。(Text 8)M:Good morning,madam.What will it be today?W:I've been wearing my hair long for years,but now I'd like to try some kind of modernstyle.What do you suggest for a woman like me?M:Come here,please.We'd like to wash your hair first,so it will be easier to cut and style.I think you'll like this style.It's very fashionable.W:I hope so.I'm really tired of this old fashion style that I've been wearing.Will it be hardto care for?M:Not at all.When you wash it,it will fall into place naturally.You'll probably need anothercut in about a month.Shall I make an appointment for you?W:By all means.And I need to make an appointment for hosting my company's annual meeting.M:Fine,when?W:Next week's Friday morning.The meeting is that day's night.听下面一段对话，回答第13至第16四个小题。现在，你有20秒钟的时间阅读这四个小题。(Text 9)M:Hi,Jane.Welcome back.How was the West Coast?【高三英语·参考答案第3页（共10页）】478C

10.(17分)已知函数fx)=2x2+ax-a(a∈R),11.(18分)(1)解关于x的不等式f(x)≥x,(2)若命题“3∈[1,4]，使得f(x)≤2a一a一8”为假命题，求实数a的取值范围已知函数w-reR.增人三盒容有国(1)求不等式f八x)-fx-1)>1的解集M(2)若函数y=八)在(0，+)上的最小值为一。-1，求实数a的值：(3)若对任意的正实数a,存在工∈之门，使得：)m,求实数m的最大值S型错误（技能型错误）区型错误色只型错良S试卷分析错误类型涉及题序失分错误内容沙及题序失分【24·G3AB(新高号)·数学（三）一0考-N

国为“框架国组织2022-2023学年第二学期学情调研山.短文理解。（共5小题；每小题1分，满分5分）参与国的新型注意事项：九年级英语试题卷将听到一篇短文，短文后有五个小题。请根据短文内容，在每小题所给的A、B、C三个选项中选出一个最佳选项。短文读两遍。,如)11.When did Elizabeth move to New York City?的学A1n1821.)In1831.C.1n1849(B.1.本试卷共四部分，十大题，满分120分.考试时间为120分钟。2全卷包括“试题卷”和“答题卡”两部分。3.请务必在“答题卡”上答题，在“试题卷”上答题无效。)12.How did Elizabeth get money for the cost of schooling?A.By teaching in school.B.By writing musicC.By working as a doctor《高)13.Why did she give up her idea?，A.Because of a serious eye problem中B.Because of a traffic accident.贱，第一部分听力（共四大题，满分20分）第一部分听力部分（共四大题，满20分）C.Because of her poor family.L短对话理解（共5小题；每小题1分，满分5分）)14.Who did Elizabeth open a new hospital with?尔将听到五段对话，每段对话后有一个小题。请在每小题所给的AB.C三个选项中造出一个最佳选A.Her mother.B.Her sister.C.Her classmate.项。每段对话读两遍。)15.What does the speaker think of Elizabeth?)What will the boy take?A.Clever.B.Brave.C.Young.V.信息转换（共5小题；每小题1分，满分5分）A你将听到一篇短文。请根据短文内容，写出下面表格中所缺的单词，每空仅填一词。短文读)2.What Sign are they talking about?两遍。How to do with mistakeswho16 Make mistakes and nobody is perfectA大)3.What does Jim's mother do?whatFacing up to mistakes is a great way to 17hoppen hoppenedA.An artistWe can work out how the mistake 18()4.What will they do tonight?B.A doctor.C.A nurse.Sometimes,the mistakes are more and it may take us longer to learn from them.A.Go to a concert.whyWe can become a 20-person and do things better(B.Watch TV.05 What does the boy think of the book?C.Play computer games.A.Boring.B.Difficult.C.Great第二部分英语知识运用（共两大题，满分30分）Ⅱ.长对话理解（共5小题；每小题1分，满分5分）V.单项填空（共10小题：每小题1分，满分10分）你将听到两段对话，每段对话后有几个小题。请在每小题所给的AB.C三个选项中选出一个最佳从每小题所给的A、B、C、D四个选项中选出一个可以填入空白处的最佳选项。选项。每段对话读两遍。21.You can see thein their faces when they talk about the great achievements in the past 70听下面一段对话，回答第6至7小题。years.D.ability()6.When did the girl call David last night?A.doubtB.prideC.regretA.At6:0022.—I haveB.At7:00C.At8:00but praise for the police because they often help people out of trouble.)7.How long does David usually walk in the park?-Yes,they're well worth praising.C.For an hour and a half.A.everything全是nothingC.anythingD.somethingA.For half an hour.B.For an hour.you go there in person.听下面一段对话，回答第8至10小题。23.You won't fully experience the culture of a foreign countryA.unlessB.becauseC.as soon asD.as long as()8.What's wrong with Ted?A.He had a fever.24.-I missed the beginning of the film last nightB.He had a coughC.He had a toothache.)9.How often does Ted take medicine?C.Try your best.D.You bet当K、JA.Once a day.B.Twice a day.C.Three times a day.A.Hurry up！B.What a pity!25.-I was afraid to make the speech at first,but finally I三S)10.What will the girl do?A.Help Ted with lessonsB.Visit Ted in the hospital-So you should believe yourself.（风)回店A.explainedB.Managed C.realizedD.refused

(5)①N2S2O3标准溶液显碱性，所以应该选择碱式滴定管，碱式滴定管排气泡的方式是将滴定管末端的尖嘴抬起，挤压橡胶管中的玻璃珠，使液体充满尖嘴，c项符合题意。②滴定管下端有一段是没有刻度的，且滴定管刻度从上往下数值由小到大，所以当用25.00mL的滴定管进行实验，当滴定管中的液面在刻度“10”处，溶液体积应>25.00mL10.00mL=15.00mL,d项符合题意。③根据方程式可知关系式I2~2S2O⅓2KI,则n(KI)=n(S2O号)=0.2×14.5×10-3=,0029(mo,其质量mK)=0.0029X166=0.4814(g,样品的纯度号，800X100%突96%。16.(1)适当升高温度（或搅拌等合理答案均可，1分）(2)Nd2(SO4)3+Na2SO4+xH2O=Nd2(SO4)3·Na2SO4·xH2O'(2分)(3)取最后一次洗涤液于试管中，向其中先滴加稀盐酸，再滴加氯化钡溶液，无白色沉淀生成(2分)；坩埚(1分)(4)3.0×10-4(2分)(5)钕铁硼废料(1分)；阳极发生电极反应Nd-3e—Nd3+,Fe-2e—Fe+,Fe2+易被氧化为Fe3+,根据Kp可知，Fe3+更易形成Fe(OH)3沉淀与NdB+分离(2分)(6)2(2分)：5.76X102(2分)√3XNA·x2y【解析】本题主要考查利用钕铁硼废料制备钕的工艺流程，考查学生对元素化合物的理解能力和综合运用能力。(1)适当升温或者提高酸的浓度、搅拌、延长浸取时间等均可提高Nd的浸出率。(3)洗涤的主要目的是洗去表面吸附的可溶性离子，故可通过检验硫酸根离子进行判断。(4)若Nd3+完全沉淀，c(Nd3+)≤10-5mol·L1,根据Kp[Nd2(C2O4)3]=2.7×10-21,则8/2.7X10-2T可得溶液中c(C,O)≥√10)2=3×10-4(mol·L-1)。(5)若采用电化学阳极氧化技术直接浸出钕铁硼废料中的钕和铁元素，则以钕铁硼废料为阳极进行电解。阳极发生电极反应Nd-3e—Nd3+,Fe-2e—Fe+,阴极有OH生成，根据Kp可知，Fe3+更易形成Fe(OH)3沉淀，电解时，产生的Nd3+浓度较小，在中性时，不易形成Nd(OH)3沉淀，使Fe和Nd分离。17.(1)①+40.9(2分)②0.4(2分)(20.2(2分)932(2分)：28,5(2分)(3)①>(1分)②主反应(1分)◇【高三化学·参考答案第3页（共5页）】·GS·