16.3当面BCC,B,与底面所成角为60°时,设AA1与所以(-2,2a,0则45202d小,水面交于点P,则故E=(3-23t,2t+1,0),Rt△PA,B1中,∠A,PB1=C人60°又P元=60°,又AB,=23,所以B25241.PA1=2,PA=2,所以第16题解图且EN与PC所成的角为60°,S图边形mP=65,所以V水=S四边形BP·BC=18,所所以cos(E成,P心)=EN.PCV*一=3|E1IP元以h水一S华方形ABcD8t17.解:(1)连接A1C1,则B,D11A1C1,2√/4t2-2t+1×42,因为CC1⊥面AB,C,D1,1且B,D1C面A,B,C,D1,所以CC,⊥B,D1,解得t=21因为A1C,∩CC,=C1,所以B,D1⊥面A1C,C,又A,FC面A1C,C,所以B,D1⊥A,F.所以点N为BC的中点,此时1BCI2(2)延长AA到K,使AK=子,连接KE,19.解:(1)如图,连接AD,交CE于点G,因为四边形ACDE是正方形,则EK∥DF,所以VA DEF=D所以G为AD的中点,连接FG,所以BE∥GF,VEA DF VKA DF =VEAOR又BEI面ADF,GFC面ADF,3SA4k·CD,因为Sa4,x→所以BE面ADE.D(2)以A为坐标原点建立名AK:A0=含所以如图所示的空间直角坐E5标系Axyz,设AC=2,VDE24第17题解图则B(3,1,0),E(0,0,2),18.解:(1)取底面△ABC的中心为0,连接OB,OP,过点O作OD∥AC,交BC于点D,r92d0,22.由正四面体性质可得OB,OD,OP两两垂直,停日小元第19题解图故以0为坐标原点建立如图所示的空间直角坐标系0xyz,因为正四面体PABC的棱长(m(2均为4,E,F,M分别是AB,设面BEF的法向量为m=(x1,y1,乙),PC,AP的中点,所以0(0,0,310425-2,0m·FB=0,22=0,则即m·F2=0,53o.)c 25.2.0)2,2+2=0,第18题解图令x1=1,得y1=√3,1=√3,故m=(1,3,3),poo49)s停-10r(-厚12设面DEF的法向量为n=(x2,y2,22),√53-5-2)n·F2=0,22+22,=0,则即n·Fi=0,1故-(2522威-(55122+2+2,=0,所以cos(E凉,B=E.6令=1,得=0=-,0|E京IBi6m·n_√133(2)设B=tBC(0 62n分)22怀24in15im6p)5学WX元2/2-121.fa)=2 Dsin(ac+gp(o>0,-晋<9<号)的部分图象如图所11示.则f(x)的表达式可以是(t/心a-anl2r别/B.fx)=2sin(x-5)2c.fx)=2co(g2a)D.fm)=2cos(2.x+g)已知函数)f),=(x是定义域为R且都关于=1对称的函数,f()十)1.81十x)=6,当x∈[0,1]时,)=1一0g(x+,下列结论正确的是A.函数f(x)是周期为T=3的周期函数B.函数f(x)图象关于x=2对称BUf(2023)=0n心零☑的图翠与):的图象有8个交点尸4第Ⅱ部分非选择题(共90分)0三、填空题:本大题共4小题,每小题5分,满分20分,13.准线方程为x=一1的抛物线的标准方程是物14在(2x2-》”的展开式中项的系数为09(用数字作答)15.请举出一个各项均为正数公差不为0的等差数列{a)使得它的前n项和Sn满足:数列Sn)也是等差数列,则an=16.粽子是端午节期间不可缺少的传统美食,铜仁的粽子不仅馅料丰富多样,形状也是五花八门,有竹简形、长方体形、圆锥形等,但最常见的还是“四角棕子”,其外形近似于正三棱锥.因为将棕子包成这样形状,既可以节约原料,又不失饱满,而且十分美观.如图,假设一个棕子的外形是正三棱锥PABC,其侧棱和底面边长分别是8cm2和6cm,O是顶点P在底面ABC上的射影.若D是底面ABC内的动点,且直线PD与成面AC所这的的正国血方aD的就适长为>Lhi-n四解答题本大短共6小感满分心分解答应写出文字说阴演红步要或证明217.(本小题满分10分)在△A中,AC-2.AB=28∠C-经0(1)求∠B;(2)若D为BC的中点,求AD的长,A/高二数学试卷共4页第3页3 语法填空【答案详解】56.returned考查动词的时态,根据时间状语on the afternoon of April27,2023确定用一般过去式。57.concluding考查非谓语动词做状语。孟菲斯动物园将大熊猫丫丫送还中国,结束了20年的合作研究工作。58.who考查定语从句。修饰前面的experts,指代人,在定语从句中做主语。59.with考查介词搭配。get familiar with,与变得熟悉60.to ensure考查不定式做目的状语。原句They also worked along with staff on the US sidefor Ya Ya's breeding,nursing,and health assessment and made further preparations for her return toensure a safe and sound trip.他们还与美方工作人员一道,为丫丫的育种、护理和健康评估做了进一步的准备工作来确保丫丫安全完美的返程。6l.gestures考查名词单复数。gesture可数名词,前面由some修饰,用复数。62.set考查非谓语动词短语做后置定语。一名被送去孟菲斯的北京动物园的管理员。63.is needed考查动词的时态和语态。最后一段描述的是丫丫回国后现在的护理状况,care和need是动宾关系,所以用一般现在时的被动语态。64.carefully考查副词的词性转换。修饰后面的动词短语look at her mouth,back,and hands。65.adaptable adaptive考查动词的词性转换。形容词做表语。adaptable或adaptive与smart并列,做表语,表示适应性强的。第6页共7页 英语测试报A11-283(37-37)4外研高一天津同步(大字版)·第37期必修三unit3 The world of science(I)综合能力测评张成武谢华山程思佳总分:150分得分:试卷编码:14237第I卷第一部分英语知识运用(共两节,满分45分)第一节单项填空(共15小题;每小题1分,满分15分)1.Days later,my brother phoned me to say hewas all right,butsay where he was.A.mustn'tB.shouldn'tC.wouldn'tD.mightn't2.Bob called to tell his mother that he couldn'tenter the house,for hehis key at theschool.A.would leaveB.was leavingC.has leftD.had left3.-Lucy,how do you find the book writtenby Professor Yang? 所以h(x)mim=h(We)=2e,所以k≤2e,即k的最大值为2e.11.【解题分析】(1)f(x)=e+a,当a≥0时,f(x)>0,函数f(x)在R上单调递增,当a<0时,令f'(x)=0,得x=ln(-a),当x>ln(-a)时,f'(x)>0,当x - 工智能技术驱动的自然语言处理工具,它能够通过理解和学人类的语言来进行对话,还能根据聊天的上下文进行互动,真正像人类一样来聊天交流,甚至能完成撰写邮件、视频脚本、文案、翻译、代码、论文等任务。D篇主题语境:人与社会一一艺术本文是说明文。一项新的研究发现,对音乐的掌控感是用音乐缓解疼痛的关键。32.D。理解具体信息。根据第一段中的However,,how music can do this is unclear,,especiallyfor acute pain work in the past has largely focused on lab-based findings that did not exploreacute pain in the real world可知,之前的研究没有过多关注现实生活中的急性疼痛。33.C。理解主台要义。根据第二段中的Dr.Claire Howlin.and his team asked286 adults、.Thetrack was specially produced in two different versions of different complexity Studyparticipants were asked to listen to either the low-or high-complexity version可知,文章第二段主要讲述了该研究的实验过程。track意为“一首乐曲,一首歌曲”。34.D。理解具体信息。根据第三段中的The researchers found that participants who felt theyhad control over the music experienced greater relief Participants ..experienced evengreater pain relief by having a sense of control over the track used in this study可知,该研究表明让人们产生对音乐的掌控感是用音乐缓解疼痛的关键。35.A。理解观点、态度。根据最后一段中的It's encouraging to know和Our research makes itpossible可知,Howlin对该研究持肯定态度。第二节主题语境:人与社会一一科学与技术本文是说明文。文章介绍了有关风力发电的知识。36.A。根据上文中的It stopped being used for much of the20 th century和下文中的Increasingly,.it is being used to produce electricity可知,风在过去被用来驱动船只和转动风车(windmills),但在20世纪的大部分时间里被停止开发,如今风又再次回归大众视野,人们开始用它发电(electricity),因此A项符合此处内容。A项中的comeback意为“复出;重返;再度受欢迎”,与下文中的Increasingly相照应。37.B。根据上文中的Today,wind energy is produced with wind turbines和When the windturns the blades,the blades turn a generator可知,作者在此处介绍风力发电的原理,因此B项符合此处内容。B项中的The generator指代上文中的a generator,同时B项通过then与上文内容构成顺承关系。38.D.根据上文中的To produce more electricity,,wind turbines are often set up in large groups.These groups are called wind farms可知,作者在此处介绍风力发电场(wind farms)。为了提高发电效率,风力涡轮机经常成组安装,形成风力发电场,因此D项符合此处内容。D项中的They指代上文中的wind farms;made up of hundreds of turbines与上文中的set up in largegroups相照应。39.C。根据上文中的Wind is not steady可知,设空处应填入一个可以解释风为何是一种不稳定的能量来源的句子,因此C项符合此处内容。C项中的its指代上文中的Wind;changeoften与上文中的not steady相照应。40.E。根据本段的主旨句Wind energy also has its own problems可知,作者在本段主要介绍风力发电的不足。根据上文中的Wind energy is cheap to produce once a wind farm has beenbut可知,风力发电的成本较低,但是风力发电场本身的建设成本相当高,因此E项符合此处内容。E项通过However与上文在内容上形成转折关系,点明风力发电的成本问题。语言运用 二、多项选择题:本题共4小题,每小题5分,共20分.在每小题给出的四个选项中,有14.已知奇函数f(x)在[0,+o)上单调递增,且f(x)的图象经过点(-2,-4)和多项符合题目要求.全部选对的得5分,部分选对的得2分,有选错的得0分.(1,3),则不等式-3≤fx-1)≤4的解集为9.下列函数中,值域不是R的是(C)A.y=1B.y=1+115.已知函数)=a+:为偶函数,且x2+111。1C.y=x+D.y=4-1则0a+202210.已知f(x)=3-21x1,g(x)=x2-2x,若份)g+2)+…+2)则)=))三)则下列说法If(x),f(x) sl7%☐100:24人辽宁实验高三上(…试题+答案.pdf第1页/共5页A.-1BC.1D.27.已知函数f()=二,若对任意的正数a、6,满足f@+f(2b-2)=0,则2+的最小值为e'+1a b()A.2B.4C.6D.88在锐角三角形ABC中,A、B、C的对边分别为a、b、c,且满足6=a(a+c,则+S的取值范围为()A.(1,5)B.(2+1,5)c.(山,5+2D.(W2+l,5+2二、多选题.本大题共4小题,每小题5分,甚20分,在每小题的选项中,有多项符合题目要求,全部选对的得5分,有选错的得0分,部分选对的得2分9.m、n是两条不同的直线,a、B是两个不重合的面,下列说法正确的是()A.m、n是异面直线,若m11a,m/IB,nlMa,nlWB,则alBB.若allB,m11a,则m/1BC.若m⊥n,mca,ncB,则a⊥BD.若m⊥a,mlm,nllB,则a⊥B10关手子函数f)=2m3红-,下列说法正角的是《)A.由f(:)=f(:)=0,可得x-x必是π的整数倍Bf)=-2a3x-cf儿)图像可由y=2sn3x向右移个单位得到Df在[上为增函数11.《九章算术》是我国古代数学中的经典,书中将底面为长方形且有一条侧棱与底面垂直的四棱锥称之为阳马,将四个面都为直角三角形的四面体称之为整臑.在阳马P-ABCD中,侧棱PD⊥底面ABCD,且PD=CD=a,点E是PC的中点,连接DE,BD,BE.以下结论正确的有()第2页/共5页A.DE//面PAB兰心④也宣目录打开方式转存下载云打印I 第The results of a digital detox can be rewarding."Although I get 33 for working hard,workinghard was the easy part,"he says.第二部分Staton was 34 for all the support he receivedG.A few days after starting your digital detox,check in with yourself on how it's going.分and he wanted to pay it forward.And now he wants toMore control of your time.lead a professional sports team-he still hasn'tDo you always feel an overwhelming desire to check35 his childhood dream.your smart phone or social media?Al8 On average,语阅people check their smart phone 96 times a day and spendmore than two hours on social media.For many people,读checking their phone or social media whenever there are a言运33.A.respectB.helpC.gratitudecreditfew free minutes is a reflex action(下意识动作)that isn't34.A.eager●thankfulbased on any real need.Taking a break from digital用C.famousD.responsibledevices helps you fight against this reflex action.35.A.announcedB.discoveredgforgottenD.chosen第第二节第阅读下面短文,在空白处填入1个适当的单词或括E.For some pecan cotoo much inform二号内单词的正确形式。。g yoself on how it's goingRegularly finding time to take a nap(小睡)Less stress and anxiety.分36.helps (help)keep our brain bigger for longer,分E19 Constant exposure to notifications,emailssay University College London researchers.and social media can create a sense of being constantly"on".The result of that may increase stress and anxiety.语However,the researchers recommend 37.limitingA digital detox can provide a break from these constant(limit)naps to less than half an hour.distractions and allow for relaxation.读运The brain 38.naturally (natural)shrinks20B)with age,but whether naps could help preventAvoiding digital distractions creates moreopportunities to pay attention to people around you.For用diseases like Alzheimer's will still need extraexample,without devices around at dinner,you interactresearch.and connect more with your family or friends.第第一节完形填空第Staton grew up with his brother and they wereBrain health is important for protecting againstraised by their father,who did multiple jobs to support二部Alzheimer's and 39.what causes it is poor sleep.their family.They had a 21 supply of food andThe researchers suggest poor sleep is damagingelectricity back then."There were22 in the ceilings.There were a lot of areas in the house that didn't have分the brain over time by affecting the connectionsfloors,"Staton says,describing their former livingbetween brain cells."Thus,40.reasonablesituation.At a young age,he 23 of becoming a语(reason)naps could protect against言professional boxer,in the hope of getting his family outneurodegeneration(神经变性)by making up forof 24 through sports money.运poor sleep,"researcher Valentina Paz said.用21.A.large.limitedC.safeD.readyThe researchers used a clever method22.A.lightsB.drawingsholesD.decorations41.to prove (prove)that napping is beneficia23.A.spokeB.heardC.knew鰱.dreamed24.A.illnesspovertyC.heatD.dangerg第Sadly,he 25from a shoulder injury which madehim give up his dream too early.So after high school,第They used 42.a natural experiment based on二部he 26 to look for a job.the DNA.Previous studies have identified 97 partsWhat was worse,both Staton and his 27 hadof our DNA which either make us more likely to beto stop their education when their father had a stroke(中风.Staton eventually28 a job as a sanitary(环分nappers 43.or to power through the day.So境卫生的)worker in Maryland,which helped histhe team took data from 35,000 people,aged 40 tofamily make ends meet.Some of his co-workers told69,and simply compared those genetic "nappers"语言him not to be like them and encouraged him to语continue his education.and "non-nappers".The results,44.published(publish)in the journal Sleep Health,showed a 15-25.A.learned B.benefitedsuffered D.escaped运cubic--centimeter(立方厘米)45.difference用26.0 determinedagreed D.pretended..brother D.sister用(different)-equal to 2.6 to 6.5 years of aging.27.A.motherB.father28.foundB.offeredC.lostD.describedg第With everyone's help,Staton entered the University ofMaryland.His hard work 29.In 2018 he finished第第一节his undergraduate study successfully.In less than ayear,he 30 the Law School Admission Test and假定你是李华,是某国际学校的学生会分applied to Harvard Law School.部主席。本周六,你校将举办主题为How toStaton knew how 31 it was to get accepted but分prepare to study abroad的英语讲座。请你根he still tried his best.To his32 he got accepted and据以下要点提示,写一则通知,发布在校英received much praise文网站上,内容包括:29.A.ended upB.turned up写言运用C.worked outpaid off作1.时间地点;30.A.graded.passedC.facedD.failed2.讲座内容;31.0 toughB.inspiringC.funnyD.vital3.注意事项。32.A.regretB.disappointment●注意:写作词数应为80左右。C.annoyancesurprise 三、填空题(本大题共4小题,每小题5分,共20分)13.已知复数z满足(1-i)z=1+5i,则|z|=14.已知向量a=(1,),6=(-3,1),且(2a+6)1,则cos(a,)=15.已知数列|an}满足a,=2,a+1=3an+2,若对任意正整数n≥1都有k(an+1)≥2n-3恒成立,则k的取值范围是16.已知△ABC的面积为1,且AB=2BC,则当AC取得最小值时,BC的长为」四、解答题(共70分,解答应写出文字说明,证明过程或演算步骤)17.(本小题满分10分)已知等差数列{an}的前n项和为Sn,且满足a3=5,S3=as(1)求数列{an}的通项公式;(2)若数列{bn|满足bn=an+2,求数列{bn}的前n项和Tn18.(本小题满分12分)·在△ABC中,角A,B,C的对边分别是a,b,c,且(a2-c2)sinC=(bc-c2)sinB.(1)求角A的大小:√3(2)若a=2,且△MBC的面积为?,求△MBC的周长19.(本小题满分12分)第22届亚运会于2023年9月23日至10月8日在我国杭州举行,这届运动会大量使用了高科技.为选拔合适的志愿者,参选者需参加测试,测试分为初试和复试;初试从6道题随机选择4道题回答,每一题答对得1分,答错得0分,初试得分大于等于3分才能参加复试,复试每人都回答A,B,C三道题,每一题答对得2分,答错得0分.已知在初试6题中甲有4题能答对,乙有3题能答对;复试中的三题甲每题能答对的概率都片,乙每题能答对的概率都是号(1)求甲、乙至少一人通过初试的概率;(2)若测试总得分大于等于6分为合格,问参加完测试甲、乙合格的概率谁更大,数学·第3页(共4页) 所以g(x)<0,所以g(x)在(1,+∞)上单调递减,所以g(x) 【高三英语参考答案,第,3页(共4页)】24092CM:Well,I'm expecting an important phone call,and I don't want to miss it.W:Is it anything I should know about?M:Not really.It has something to do with work and isn't really related to us here at home.W:Well,why don't you go ahead and do what you want to do outside.I'll call you if the phone rings for you.M:Thanks.I think I will.I need to go outside for some fresh air.(Text 8)W:Honey,what are you doing?Come and have your breakfast.You don't want to be late for work a secondtime this week,do you?M:Of course I don't.But I can't find my glasses.Have you seen them?W:Oh,dear.You're always forgetting where you put them.What did you do just now?M:I took a shower just a few minutes ago.W:Maybe you left them in the bathroom.M:No.I checked there but I didn't find them.W:What else did you do?M:After the shower,I went to the living room.Oh,I remember I read a magazine there.You know I can'tread without my glasses.W:Then you must have left them there.Go there quickly.I'm sure you'll find them.(Text 9)W:Laurance,how did the car acciderit happen?M:It was dark and it was Christmas Day.And I was on my bicycle and my telephone rang.And I took it out ofmy pocket while riding my bike.And then,I rode straight into the back of a parked black car.W:Oh,no.M:I hit the back of it and I broke a few bones.W:I'd say it's terrible.Then you went to the hospital.M:No.I was a bit stubborn.I don't know why.I had the worst night sleep I've ever had but yet,I didn't go tothe hospital until the next day.W:Oh,a nightmare.M:Yeah,actually,three months later in March,I was lucky enough to win a place in the Tokyo marathon.There are so many people who apply to get a position.So I was trying to rush it,really and I shouldn'thave.But I did.I got the third prize.W:Did you?M:Yeah.W:Oh,my goodness.(Text 10)W:A primary school at Sanmenli Village in Gongzhuling City has been paid attention to-two teachersteach just one 12-year-old student,Wang Hao.Chen Hongyan works as the class teacher while Liu Haitao asthe PE teacher.The situation has started several years ago,Xinhua reported.Although there is only onestudent at the school,Wang never misses a single class on Chinese,mathematics,English or early-morningindividual study.Wang has seven classes a day.Chen has set 14 alarm clocks as Wang's school bells."I treatmy only student seriously as well,otherwise my heart cannot justify what I do,"said Chen who has been in herpost at the school for 18 years."I certainly can not give up on any student."Chen also encourages Wang to playwith other kids in the village for fear that he may feel lonely.Wang's father often checks in on his son when hepasses the school on his way to herd sheep and he appreciates the persistence of the two teachers.Villagesecretary Wang Lixin said the school once had dozens of teachers and more than 200 students.But teachersretired and students moved to schools in towns nearby after 2010.【高三英语参考答案,第,4页(共4页)】24092C The white crane is one of the largest and heaviestcranes.It's also one of the longest-living birds,with a四Back home,when I put my packaged presents语言life of30-40 years in62 the wild.In captivity(圈养),under the tree,I noticed other packages which hadsome can even live to 75 years old.However,with abeen placed by Steve,my sister and my parents.small population left,the white crane is under China'sfirst-class 63 national (nation)protection.作After dinner,Dad told us that he would go tocollege and that our family would have a tight (识Since the white crane plays a big part in Chinesebudget.And he felt sorry for that.Suddenly,I knewculture,we hope more and more people will takewhat I would use my 12 dollars for.I ran to myefforts to love 64 and care for this bird.I believeroom,and wrote on a card,"Dear Dad,this is for用as long as we all are responsible for 65 protectingyour education,.”(protect)the bird,its number will increase quickly注意:四第一节四1.续写词数应为150左右;2.请按如下格式作答。假定你是李华,周六下午你们社区有一场地写And I put the paper and the money into a方戏曲讲座。请你给爱好中国戏曲的留学生Lucyshoebox.作发一封邮件邀请她参加,内容包括:1.写邮件目的:2.讲座时间、地点和主题;When I thought about that blue bike,Mom3.希望她接受邀请。suddenly said,"Terry,could you go to the kitchen注意:写作词数应为80左右。to see if the coffee is ready?"gOne possible version:One possible version:四Dear Lucy,I'm writing to invite you to attend a lecture.Here is the四And I put the paper and the money into a shoeboxdetailed information.I put it under the tree.On Christmas morning,myAs scheduled,it will take place at our community centerthis Saturday afternoon,with the theme of Chinese local operasfamily began opening gifts.Steve and my sister作作found the presents they wanted.My mom put on thewhich you've always been interested in.In that case,you willblue earrings and smiled at me.Then,Dad held thedefinitely find it worthwhile.The lecture will cover three aspectsof the local operas:the history,the cultural significance,famousshoebox,confused.Carefully he opened it,takingfigures as well as their masterpieces.out the note.When he finished reading,his eyesI wish you said yes to my invitation!Then let's meet at theseemed to fill with tears.He laughed and said to me,gate of the center at 2 o'clock,ten minutes before the activity"It looks like I'm all ready for college.This is thebegins.most wonderful Christmas I've ever had.I hope it isfor you too..”第二节阅读下面材料,根据其内容和所给段落开头语四续写两段,使之构成一篇完整的短文。四When I thought about that blue bike,Mom suddenlyWhen I was 11,I quite wanted a bicycle-not any bicycle.said,"Terry,could you go to the kitchen to see if the写but a blue bicycle from Johnston's bike store on the Hill,a smallshopping area that was six blocks away from our house.coffee is ready?"I hurried to the kitchen.I couldn'tbelieve my eyes.There,parked next to the table wasThe Monday before Christmas,my 9-year-old brother Steve作the blue bike from Johnston's bike store.And thereand I ran to the Hill to do our Christmas shopping.Past the ice-cream shop and the pet store,we entered the five--and-dime store.was a card,reading,"Merry Christmas,Terry."IMy brother had his savings (65 cents)held in his hand,and I hadcouldn't help rushing to hug my parents,excited andfour dollars,some of which I had got by cleaning the neighbor'sgrateful.Then,taking a deep breath,I ran over andyard.At the store,I picked out writing paper for our sister,a pairgently touched the bike.Now,the bike is long gone,of earrings for our mom,and a notebook for our 45-year-old dadbut I still remember that Christmas when my parentssince he would be going back to college to get a Ph.D.degreeenough money left to buy baseball cards for Steve.and I brought each other surprise and joy.We went home by way of the bike store,so I could23-24上新课程外研高一四look at my bike.It wasn't my bike actually,but I was第16期其余版面参考答案saving money to buy it.I wanted it more than anythingelse in the world.It was a blue Italian model;I had neverA1版seen another one like it.I planned to ride it to school.Paragraph 1:The history of Chinese Bonsai作参考However,to my shock,the blue bike had been sold.ItParagraph 2:Designing Bonsai is a way for peopleseemed like my heart stopped and time stood still.Forto meditatethree months,ever since the first day I saw it,I had been案Paragraph 3:Different schools and different typessaving money to buy it.I ran from the store,fighting backof Chinese Bonsaifears.On the way home,I thought I no longer needed thParagraph 4:Famous places of Chinese Bonsai12 dollars I had saved.I started to think what I shoulParagraph 5:How to make sure a Bonsai tree canbuy with it.live long8 7.What does the woman think of the man's question?
A.Interesting.
B.Creative.
C.Foolish.
听第7段材料,回答第8、9题。
8.What are the speakers getting ready for?
A.Timmy's birthday.
B.Christmas Day.
C.New Year's Day.
9.What will the woman do later?
A.Pack the presents.
B.Send holiday cards.
C.Go to the mall. 【答案与解析】
21.B考查形容词。Wanda Smith一直想成为一名教师,但现实
生活的艰难意味着梦想被推迟。
22.A考查动词。
23.A
考查动词。她是三个孩子的妈妈,还要照顾自己的妈妈。
24.C考查名词。她直接承担起了家庭责任,在得克萨斯州的布伦
汉姆独立学区做校车监督员和看管人。
25.D
考查名词。她这段时间很辛苦,但她没有让梦想破灭。
26.D
考查动词。
27.B
考查名词。她在日程安排中增加了读夜校。
28.C若查动词。九年后,她顺利毕业了。
29.C
考查形容词。她终于成为一名有资格证书的教师了。
30.D
考查名词。她回到了曾经工作过的地方。 While the meditators didn't have immediate improvements to
actual task performance,the researchers'findings offer a promis-
ing window into the potential of sustained meditation.Looking a-
head,Lin said that the next period of research will be to include
a broader group of participants,test different forms of meditati-
on and determine whether changes in brain activity can translate
to behavioral changes with more long-term practice.
"It's great to see the public's enthusiasm for mindfulness,
but there's still plenty of work from a scientific perspective to be
done to understand the benefits it can have,and equally impor
tantly,how it actually works,Lin said."It's time we start loo
king at it through a more rigorous lens. 1.续写词数应为150左右;
2.请按如下格式在相应位置作答。
Then we drove to our friends'house,made our way to the
door with our box and bags,and knocked eagerly.
Looking at my mother,I felt proud to be the daughter of this in-
credible woman. 59.B即使不能捐钱,你可以在你的社交煤体上分享这个帖子,让
它被尽可能多的人看到。
60.D 49.C
50.B
“我写信是要告诉你那个装有婴儿衣服的包裹你等不到
了。”
51.B
52.D“我在包裹上找到了你的相关信息,于是我发了几件新的婴
儿衣服给你。”
53.D“我希望这些衣服适合你的孩子。”
54.C“我本想把你先前买的衣服捡起来,但它们到处都是,而且
脏了,沾了油污。”
55.A把那张便条发在推特上后,Caoimhe说:“她太棒了,一个完
完全全的陌生人(而已)!” 【答案】
One possible version:
Dear Mr Geller,
You can't imagine how overjoyed I am hearing about your
plan!I'd like to offer my advice for your reference.
As a big fan of Chinese calligraphy myself,I'll recommend it
without hesitation because it's a natural combination of beauty,
strength,history and technique.In order to learn it well,first,
she needs to devote herself to long hours of practice.Second,
signing up for a calligraphy course would be a wise choice,which
would help her study in a systematic way.Besides,it'd also be
beneficial to study and imitate the works of famous calligraphers.
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1时,F(x)>0,所以F(x)在(1,+o)上单调递增,所以F(x)在x=1处取得极小值,且极小值为F(1)=0,故F(x)在区间(0,1)内没有零点.②若a<0,则h'(x)=e一2a>0,故函数h(x)在区间(0,1)内单调递增.又h(0)=1+a-e<0,h(1)=-a>0,所以存在xo∈(0,1),使h(x)=0.故当x∈(0,xo)时,F(x)<0,F(x)单调递减:当x∈(xo,1)时,F(x)>0,F(x)单调递增因为F(0)=1,F(1)=0,所以当a<0时,F(x)在区间(0,1)内存在零点.③若a>0,由①得当x∈(0,1)时,e>ex,F(x)=e*+(a-e)x-ax2>ex+(a-e)x-ax2-a(x-x2)>0,此时函数F(x)在区间(0,1)内没有零点.综上,实数a的取值范围为(一∞,0).·34【24·G3AB(新高考)·数学·参考答案一必考一N】 2y=f(x))0123 1时.nx--水0,即2n - ‹‹ ‹ 82 › ››
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