大一轮复学案答案精解精析+0.0025+0.0015+0.001)=1,解得a=零假设为H。:“大果”与采用实验方案C6C950.0035,无关则P(5=0)=Cg14P(5=1)=以样本估计总体，故该校学生月消费金额根据表中数据，得1CC3的均数为500×0.15+600×0.35+700X2=200x(60×70-30×40)2200>10.828,P(5=2)=cg2280.25+800×0.15+900×0.10=670(元)100×100×90×11011所以专的分布列为(2)由题意，从月消费金额落在[550=%0.0011650),[750,850)内的两组学生中分别抽依据小概率值α=0.001的独立性检验，有501取7人，3人充分证据推断H,不成立，5153随机变量X的所有可能取值有0,1,2,3，即可以判定“大果”与采用实验方案有关142828P(X)=Ci(2)x=23.5×0.1+28.5×0.2+33.5×0.4+38.55C0(k=0,12,3).133则E(5)=0××0.2+43.5×0.1=33.54*1×2+2×284所以X的分布列为则u=33.5,(2)(i)由题知，X的可能取值为0,1,20123则P(395.024，50×55×30×75(i)因为Y=nX,所以E(Y)=nE(X)==x0.05,根据小概率值α=0.025的X2独立性检验，2cos根据小概率值a=0.025的X2独立性检我们推断H。不成立，即认为两个学校的数n2n=200s元+验，我们推断H。不成立，即认为该校学生学成绩有差异nn属于“高消费群”与性别有关(3)从甲校样本学生抽取2人，可知抽取11迁移应用的优秀学生人数专的取值可以为0,1,2，令t=e(0,2」，设f)=2+m,4.解析(1)由频率分布直方图可得：C%C25P(6=1)8则E(Y)=f(t),则P(专=0)=采用实验方案时“大果”的数量为5×因为f'（t)=π-2πsinπt=(0.110+0.010)×100=60,CwC0_120C3C938P(5=2)=2(}则非大果的数量为100-60=40】C2245C3245未采用实验方案时“大果”的数量为5×所以专的分布列为所以当(0，）时，f”()>0,当：e(0.040+0.020)×100=30,02则非大果的数量为100-30=70：8712038(后）时f'

Before becoming a food vlogger,Shi 6.was (be)a data analyst.In 2020,Shi quit his job and threwtake one's time over sth make up for cry out forhimself 7.intocooking."In order to cook novel短do the trick throw oneself into in low spirits法and difficult dishes,I have learnt many techniques,including making pancakes,Lamian noodles,milk tea,语4.Having received the support from her family,填8.and fried tea,"said Shi.When he was asked填Judy threw herself into writing.what the dishes tasted like,the food vlogger said that5.The young man believes that hard effort can空the dishes tasted 9.amazing(amaze).Based on his空make up forhis lack of talent.experience 10.associated(associate)with cooking thedishes,he also thinks that the taste preferences of6.Lucy is in low spirits after knowing thepeople in ancient times were different from those oftrip to the seaside has been called off due to bapeople in modern times.weather.Tsk2语境填词Task4请在空格处填入适当的词语，使其句意与所给请根据句子语境，从下面方框里选择合适的单词并用其适当形式同义句改写句子意思相同或相近（每空一词）。语完成下列句子（有两项为多余选项）。同digest greedy enhance cycle low1.With the intention of finding relief from stress,theflavour associate combine generate gentle义man decides a daily exercise routine.填Intending to relieve stress,the man1.The music of this new band is an odd句decides a daily exercise routine.词combination of rock and opera.2.Some fat people are the way they are because改2.All the foreign tourists who have been to the GreatWall of China have a deep impression of it.they always eat greedily.写All the foreign tourists who have been to the3.The CEO promised that the company would bea place for creative ideas to be generatedGreat Wall of China are_deeply impresseddigest greedy enhance cycle low3.The shortage of workers is tied up with the issueflavour associate combinegenerate gentleof pay.境The shortage of workers is linked with/to the4.To know everyone in the group as quickly asissue of pay.填possible,the new girl makes mental associations4.The man determines to spend all his money词between people's appearance and their names.betting on the securities.5.Advanced technology should be used to enhanceThe man determines to spend all his moneyhuman beings'happiness rather than do harmplacing/puttinga bet on the securitiesto them.Ta8k5翻译句子请根据汉语提示完成下列句子(每空一词)。语digest greedy enhance cycle lowflavour associate combine generate gentle翻境译1.处理紧急情况的能力因人而异。6.Costs,already greatly reduced,must be loweredeven further if the airline is to compete in an句The ability to deal with emergenciesvaries from person to person词increasingly cut-throat world.7.The dentist says that the tongue should be子2.这首优美的歌曲使人想起了那部电影的动人场面。cleaned gently with a soft toothbrush.The beautiful song calls/brings to mind/reminds8.Many old people report that their stomachspeople of the touching scene of the film.can't digest foods high in calories quicklyTask 3请从下面方框里选择适当的短语并用其适当形式填空短语填空（每个短语仅用一次）。短take one's time over sth make up for cry out for3.我建议你不要在明天的聚会上做这道菜，因为材语do the trick throw oneself into in low spirits料真的很难找，更不用说烹饪过程了，要花一个多小时。填1.Take your time over the report,and you still haveI recommend that you shouldn't make this dish ata week before you hand it in to Professor Smith.tomorrow's party,because the materials are really空2.The local hospital cries out formore blooddifficult to find,not to mention the cookingdonation in order to keep pace with the need.process,which will take more than one hour.3.The doctor says the treatment cando the trickand the man will quicklrecover.

正接2，A3服中缝输w:labohveobuyonenawclbtherotmdymneadomebsmesshirtsand ticsmclthepeofthemalinsiyminutes.W:OK.第三节听下面篇短文。按照你所序。短文读两通。(M)Hello,Cho.I'm12d.hmygdprin Fujian Province.They come backhome We coy getlogethecrdinimgthespingFesival.Tigywork very hard tosuppor the bigecent years,the govemen has builthave two wishes.The first one is thathometown.The second one is that Ican go to a good university参考答家(One possible version选择题徐外)1-5 CBABC6-10ACBCB11-15 BCABB16-20 BDCEA21-25 ABBAD26-30 ADCDB31-35 DCABB36-40 BADEC41-45 CCDDB46-50 BBCCD51-55 DCACA第一节56.invitation57.knew58.valuable59.at60.wher61.themselves62.working63.years64.beauty65.just第二节66.n67.wi地68.are69.1f70.for71.Would you like to have lunch withme72.Are you sure73.I was born in autumn74.I don't think it will rain75.How is the food there六、My best friendDuring my three years in juniorhigh school,I've made many friendsAmong them,Wang Qi is my bestfriend.Different from my other friendsshe has made adeep impression onme.Wang Qi isa15-year-old girl.Shehas a two big eyes.Sheis tall with short hair.We all thinkthat she looks pretty and lovely.She isnx girl.She is activeand loves sports.In fact,she is good atmany sports.She is smart and shecanalways get good grades in all examsthat she is always ready to help othersin need.For eample,she often helpsme with my studsShe has something special as well.She canrun faster than many others.times.She is looking forward toomingadoctorinthcfuharc,I'mhappy toave such a greatin my life.【书面表达写作指导】本次书面表达要求大家根据所给信写一篇关于自己最好的朋友的文章。文章应包括以下几方面：地的年龄外和特别之处等。写作时，时态以一般现在时为主，人称以第三人称为主。完成后请认真检查，确保单词拼写和语法无误，文章内容完整通顺。

2024届新高三秋季人学摸底考试化学参考答案1.【答案】A【解析】瓷瓶、玉印和玉佩饰的主要成分是硅酸盐，青铜面具的主要成分是铜锡合金，A项符合题意。2.【答案】A【解析】本题考查了分子的极性判断。0F,中0上的孤电子对数为)×(6-1×2)=2，。健电子对数为2，价层电子对数为4,0F2的空间构型为V形，分子中正、负电荷中心不重合，0F2属于极性分子，A项符合题意；CS2中C上的孤电子对数为)×(4-2×2)=0，σ键电子对数为2，价层电子对数为2，CS,的空间构型为直线形，分子中正、负电荷中心重合，CS,属于非极性分子，B项不符合题意；SiCL,中Si上的孤电子对数为)×(4-1×4)=0，σ键电子对数为4，价层电子对数为4，空间构型为正四面体形，分子中正、负电荷中心重合，SC14属于非极性分子，C项不符合题意；02属于非极性分子，D项不符合题意。3.【答案】B【解析】本题考查了实验操作与实验用途对应判断。皂化反应为油脂在碱性条件下的水解反应，A项正确；模拟侯氏制碱法应使用氯化钠饱和溶液，B项错误；碳酸钠饱和溶液可以吸收乙醇，中和乙酸，降低酯的溶解度，C项正确；NaHCO.3可与HCl反应生成NaCl、CO2和水，因此碳酸氢钠饱和溶液可除去CO2中的HCl气体，D项正确。4.【答案】B【解析】本题以氧化石墨烯为载体，考查了物质的导电性、稳定性、键能和原子杂化等。石墨烯变为氧化石墨烯，大π键遭到破坏，故导电性减弱，A项错误；氧化石墨烯中含有碳碳双键和羟基，易被氧化，故抗氧化能力比石墨烯弱，B项正确；氧化石墨烯中C一C键和C一0键均为共价键，C一C键的键长比C一0键K,故C一C键的键能比C一0键小，C项错误：氧化石墨烯中，C原子的杂化方式为sp2和sp,D项错误。5.【答案】C【解析】在碱性条件下氢气被氧化：H2+2OH-2一2H20,A项错误；以铜为电极，铜在阳极发生氧化反应，阳极反应式为Cu-2e一Cu2+,B项错误；亚铁离子还原高锰酸根离子，C项正确；丙烯分子中碳碳双键与溴加成，形成碳溴单键：CH,CH=CH,+Br,→CH,CHBrCH,Br,D项错误。6.【答案】A【解析】前20号元素的原子中，最外层电子排布式为s的原子有氢、锂、钠、钾，元素氢、铍、铝的所在周期序数等于主族序数，结合添加剂的组成可知，X为H元素，Y为0元素，Z为A1元素，R为S元素，W为K元素。0、S、H、A1、K的电负性依次减小，A项正确：K、A1、S、O、H的原子半径依次减小，B项错误；常温下铝不能与水发生置换反应，C项错误；稀硫酸没有强氧化性，D项错误。7.【答案】B【解析】本题考查了实验操作、现象及结论。加人浓溴水后，AL(SO4)3溶液无明显现象，AgNO,溶液中有淡黄色沉淀生成，苯酚溶液中有白色沉淀生成，A项可行；通入S02后，Al,(S0,)3溶液无明显现象，AgNO,溶液出现白色浑浊，苯酚溶液无明显现象，B项不可行；通入足量氨气后，Al2(SO4)3溶液中有白色沉淀生成，AgNO,溶液中先有白色沉淀生成，后沉淀消失，苯酚溶液无明显变化，C项可行；加人酸性KMO4溶液（硫酸酸化）后，A2(S04)3溶液无明显现象，AgNO,溶液中产生白色沉淀，苯酚溶液使紫色褪去，D项可行。化学第1页（共5页）

13-15ACB13.What does the speaker think of making newTeachers'Day in Singapore falls on Septemberfriends in the Book Club?6th.On this day,all schools have a day off.TheA.Easy.B.Hard.C.Interesting.celebration takes place the day before.Students14.In which club can students learn how to makeusually give a wonderful performance to thankthingstheir teachers.A.The Magic Club.B.The Book ClubIn India,Teachers'Day is celebrated onC.The DIY Club.September 5th.To show their love to teachers15.What is the speaker talking about?A.School subjects.B.After-school clubs.students sing songs,read poems aloud andC.Different kinds of books.perform plays at school.They also visit theirgteachers and give flowers to them.笔82en时smeO》B五.补全对话听力材料I have nothing special.My parents have promised to take me to Shanghai for a trip.What do you usually do after school?Whyn to Disnevland forYou've been looking forwardnot join some after-school clubs?Let me tell部you some amazing clubs.The first one is theIt's also the best time to travel in Shanghai.But I'm afraid they will cancel it.Magic Club.They teach you how to playA.Sounds great!magic.You may not believe your eyes whenB.Do you have any plans?you see their shows.The second club is theC.Are your parents too busy?Book Club.I joined it a couple of weeks ago.D.Where do you want to travel?E.And we can offer help if you need.We usually meet on Sunday afternoons.F.But I'm not smart enough to learn it well.G.I believe they will take you for a trip anyway.Why?(23)CNo They aid e ould ake atrip if cou makeEvery week we choose a new book and thenprogress in math.(24)FDon't worry.As long as you learn in a properdiscuss it during the next meeting.And I find itway,you can be good at it!easy to make new friends there.The third clubI agree with Wendy.(25)Eis the DIY Club.In the club you can learn howThank you very much!You're my best friends!to make things by yourself.The last club is theA.Sounds great!Insect Club.Here you can study insects likeB.Do you have any plans?ants,bees and butterflies.Isn't it wonderful?IfC.Are your parents too busy?D.Where do you want to travel?you're interested,please come and join the club.E.And we can offer help if you need.F.But I'm not smart enough to learn it well.G.I believe they will take you for a trip anyway.四、听力填空。六、完形填空Teachers'DayI grew up in a sports family.My parents andmy husband are players,and I'm a track coachSo I wasn't 26 when my daughter Kennedi.Students buy gifts and make(17)cards for theirIn the USAteachers.showed her talent for running.I knew she would.It falls on September 6th and it's celebrated the day27 achieve great success on the field.betore.Students usually give a (18wonderfulperformanceWhen Kennedi was in junior high,I startedIn Singaporeto thank their teachers.coaching her.After a period of training,I askedt's celebrated on September 5th.her to enter a regional competition,but she failed.Students sing songs,read poems (19)aloudin the end.I was 28and perform plays.They also (20)visittheirIn Indiateachers and give flowers to them.I made a stricter plan for her.She had little time to rest and had to 29 the听力材料chances to play with her friends.Finally,the nextTeachers'Day is celebrated in manyyear,she won first place.I was sure it must be whatshe 30.Who didn't like to win?My friends sawcountries in the world.It is the perfect chanceme as a "winner in life".I was secretly pleased.for students to show their love and thanks to31 something unexpected happened.their teachers.Kennedi got hurt in a race,and the doctor said sheIn the USA,National Teacher Day is on thewould need an operation and would never be ableTuesday of the first full week of May.On thisto run again.I couldn't 32 what happened.special day,students buy gifts and make cardsSports talent was a gift from God to Kennedi.Herfor their teachers.story should have ended at the Olympics,not in theoperating room.2

Text 9M:Hey,Mary.I'm sorry I am late.When I went to China,I couldn't get BritishW:Never mind.Did you have trouble finding anewspapers so I started to read books on my e-spot to park?reader.(19)I used to read biographies at first,butM:Actually,that wasn't the problem.I left earlyI soon turned to fiction.I tried reading a fewenough to avoid the traffic,but I couldn't getacross the bridge.classic novels after reading reviews by people whoW:What happened on the bridge?enjoyed them.I read,on average,a book every twoM:I couldn't tell.I just saw the road signs,so Iweeks-sometimes one a week.If you don't readturned around and took the long way to get here.for pleasure,I would strongly advise you to give it(14)a try.(20)You will get so much pleasure from itW:Well,it looks like we missed the worst of theand I promise you will never regret it.weather.It was pouring this morning.(15)gM:That's good.The sky is clearing up and the第第一节wind has stopped.By the way,what are those④tents for?W:They're for the food fair.It will close soon,(B)21.What can tourists do on Day 1?so you'd better get over there if you want to分A.Have a brief guided tour around Copenhagen.try something.Unfortunately,you came a bitB.Get to know an outstanding physicist'slate for the music.(16)research.M:So what is this event all about,anyway?阅C.Visit the institutes and sites where BohrW:It's a community festival held every year.Allthe food,entertainment and activities读worked.D.Have a welcome dinner with several Danishrepresent the features of our city.hosts.M:Cool.What's happening across the street at(C)22.What can be learned about the Roundthe stadium?(17)I saw the local TV stationsTower?were all set up there.A.It was built in memory of Tycho Brahe.W:That's where all the dancing and sportsB.It was completed in the late 18th century.events will take place.(17)This area is forC.It was used by scientists to observe stars.families.I saved us this spot on the grass hereD.It holds some of Ole Roemer's scientificM:That sounds fun.I'll find something at thetents,and then meet you back here.pieces.g听第10段材料，回答第18至20题。418-20ABA18.What is the speaker doing?A.Giving a speech.B.Selling some books.C.Hosting a program.(A)23.Where can visitors enjoy a firework show?19.What did the speaker choose to read afterA.At Tivoli.coming to China?B.At Roskilde.A.Newspapers.B.Books.C.Reports.C.At Rosenborg Castle.20.What is the speaker's advice?D.At Carlsberg Foundation.A.Reading for pleasure.B.Reading more classicsC.Reading reviews by good authors.⑧Text 10Hello,everyone.Thank you for inviting me to goback to my old school.BToday I would like to tell you about myexperience of reading.(18)Since you're at school,you probably have to read.But do you also read(D)24.What does the underlined word "waned"for pleasure?The first time I read a lot of booksin paragraph 2 probably mean?was when I was studying English literature atA.Grew stronger.B.Rose again.college.Later,my job with a newspaper wasC.Ended quickly.D.Became weaker.related to a lot of reading,so at home I read anewspaper each day from cover to cover-but fewbooks.

大一轮复学案答案精解精析1)-[2(n-1)2-3(n-1)+1]=4n-5,由于为首项，3为公比的等比数列.∴，a,+2=3…）,。0不满足上式所以。-公2·3-1=3”,所以an=3”-2.1所以a,3.a,=3-解析由S+1=3Sn+1得，S,=,解析当n≥2时，2(n-1)an-az'a*a13S-1+1(n≥2，neN),1所以b,>b2,.S+1-S,=3S,-3S-1,.a1=3a（n≥2，nna=0,则2(n-1)a,=na1,即8-a-12同理可得b,>b,>b,>b,b,>b∈N).又a,=1,a2+a,=3a1+1,整理得1a2=3=3a1,a=。2·m…·2·2n易知1az a数列{a,}是首项为1，公比为3的等比32数列，.数列{a,}的通项公式为a,=3--X-X21*0考点三1分当=1时，满足上式，故a,会1所以1+121例2（(1)n*西(2)a,=n2a1+112+解析()由题意得，a,云1163-2解析由4a,·a1=an-3a+1,整.100LL=n(n≥2)，理得4=13故b,

二全国©0所名校高考模拟金典卷A.经过步骤①，溶液中c(Na+)=c(CI)(5)若“调pH”过程中，N+、Mn+、Co2+浓度不变，则“调浓度”过程需要向溶液中B.经过步骤②，溶液中10c(CI)十c(Ba2+)=c(CO)十c(HCO5)十c(H2CO3)+添加的物质X为(填字母)。c(SO)A.CoSOB.MnSOC.NiSOD.H SOC.步骤③后，可观察到沉淀部分溶解且有气泡产生(6)产品的粒径和结晶度直接关系着三元电极材料的性能。为防止反应中产生的D.滤液中存在c(Na+)

注意：1.写作词数应为80左右：2.请按如下格式在答题卡的相应位置作答。2t阝ecau七oPl2e/vCCulturat heyriajeiteutness to thedeieloyhot立an inyeriert☑2阅读下面材料、根据其内容和所给段落开头语续写两段，使之构成一篇完整的短文ererkcos tom houseth lk in one corer that'home第二节（满分25分）向creatures.Every Sunday morning,I go jogging in this park.As I circle the lake,I notice anelderly woman sitting by the water with a metal cage beside her.AItookclose lotht theactually asmall metal trapdhreToday,my curiosity made me stop and approach her.ekingrodthe traped.The lady o of the tenherhands and gently rubbed the shell((壳)with a sponge(海绵)brush..Icame over to say hello to her politelyGood morning,Isaid.Icome here for joggingevery Sunday morning and I see you sitting here by the lake.Please don't mind my curiosityand innocence,but I really want to know what you're doing to the turtles."The lady smiled and said,"Iam cleaning the turtle's shell.Turtles gradually get moreand more algae()and other dirt on their shells,which weighs them down and preventstheir swimming abilities.It also reduces their ability to absorb heat.Over time,their shellsbecome weak and rot(腐烂)away.”bio“Oh wow！That's really thoughtful of you!”I shouted in shock..She continued,"Every Sunday morning,I spend a couple of hours by the lake tto relaxand help out these little guys stay clean.Strange as it sounds,this is my little way to make adifference in the world."Ithought for a while and said,"But all freshwater turtles have algae and other dirt ontheir shells.They live with that their whole lives,don't they?"“Yes,sadly,they can't help it,”she replied.注意：1.续写词数应为150左右；2.请按如下格式在答题卡的相应位置作答。However,I wasn't completely sure whether it was worthwhile."Can I help you clean the turtles?"I asked the lady.

One possible version:Dear Mark.第四部I went to your place to invite you for a hike,but youwere not at home.So I left you a message.According to my plan,the West Hill is our destination.Located in the west of our city,the hill is about 5 kilometersaway from our school.My suggestion is that we take the No6 bus from our school,which will take us about 30 minutesto arrive at the stop at the foot of the hill.In that case,let's写meet at 7 am this Saturday at the school gate,shall we?The minute you read the message,please let me knowyour decision.Thank you!Yours,Li Hua信第二节asome n阅读下面don't材料，根9 The boy0kE疏eh】据其内容和所给段落开头语续写两段使之构成一篇完整R3cpRae的短文。edthree packs of medicinewo pdiatebeena docthe boyo沿20 years ago.He had注意：1.续写词数应为150左右；四2.请按如下格式作答。He ran to the doctor's office and hugged him.幂At last,Eric told Riley who the doctor was.g写作提示：本文的语篇类型是记叙文，主题语境是人与自我。四十年前，Eic伸出援手帮助了一个小男孩，二十年后他的好心获得了回报。根据第一段的段首句He ran to the doctor's office and写hugged him以及语篇内容可知，Eric意识到给他支票的Doctor Smith正是二十年前他帮助过的那个小男孩。那他会和Doctor Smith说些什么呢？Doctor Smith又是如何成长为名医生的呢？同学们可以根据提示展开合理想象。根据第二段所给的段首句At last,Eric told Riley whothe doctor wasi可知，Eric告诉了自己的女儿背后的真相。那Riley会有什么感想呢？她从此有哪些改变呢？同学们可以根据提示展开合理想象。One possible version:He ran to the doctor's office and hugged him."Thankyou.Eric said excitedly.No,sir,"Doctor Smith told him四as they embraced."That day,you not only saved me fromprison,but you also saved my mother's life.Since that day,I promised myself that I would work hard to help my mom.写shrmedical shooroEric told him.Then Doctor Smith promised to take care ofRiley until she fully recovered.At last,Eric told Riley who the doctor was.Riley wasamazed and she also realized that what her dad said wastrue-the goodness you put out into the world would findits way back to you.Since that day,Riley no longer saw theworld as a cruel place,and she started imitating her fatherby doing good deeds whenever she could.5