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参考答案及解析数学项，因为B1C∥A1D,所以B1C∥面A1CD,所以则x=-2是方程mx十2=0的根，故-2m十2=0，Vn-450=V-A4a=v4-m,=言×分X2×2X2即m=1.故答案为1.14.「6-√5,6十√5]【解析】解法一：因为(x十2)2+=,所以B选项错误；对于C选项，因为B,C∥(y-1)2=1,所以令x+2=cos0,y-1=sin0,则AD,所以∠APC(或补角)为异而直线AP与A1Dx=-2+cos0,y=1+sin0,故1-2x+y=6+所成的角，因为△ABC为正三角形，所以当点P与sa0-2s=6+5(5s25)-线段B,C的端点重合时，异而白线AP与A,D所成的角取得最小值60°，当点P与线段B,C的中点重15+5sn(0-,其小cs9=怎smp=29因合时，异面直线AP与A,D所成的角取得最大值为-√5≤√5sin(0-g)≤√5，所以6-√5≤6+90°，因为当点P从线段B1C的端点运动到线段B1C√5sin(0-p)≤6+5，所以6-√5≤|6+√5sin(0-的中点过程中，异面直线AP与A1D所成的角的大p)|≤6+√5，故|1-2x+y|的取值范围为小变化是连续的，所以异面直线AP与A1D所成的[6-√5,6十√5].獬法二：因为圆心(-2,1)到直线角可以为75°，所以C选项正确；对于D选项，因为BC∥AD,所以BC∥面ACD,所以点P到2-y-1=0的距商d=11山-月5，所√5面A1CD的距离等于点B1到面ACD的距离，以圆心上的点到直线2x一y一1=0的距离的取值范由VB,-A1CD=VD-AC,B,得点P到面ACD的距围为[号6-1,5+1]，又因为12x-y-11=离为25，要使0s6最小，则si血9最大，又sm9=V5.12x二y-1山，所以12x-y-1川的取值范围是√52√3，当PC最小时，sm9最大，当点P在线nC[6-√5,6十√5].故答案为[6-√5,6十√5]15.(0,e)【解析】，g(x)=-x+2ln(ax),G(x)=的中点时，PC最小为2，所以sin0的最大值为-x十g(g(x)无零点，即G(x)=一x十g(g(x)=23-x-g(x)+21nCag(x)]=-x-[-x+21n(ax)]=Y5,所以cos6的最小值为3,所以D选项正+21n[a(-x)+2aln(ax)]=-21n(ax)+2In[-ax确.故选ACD.十2aln(ax)门=0无实根..x=ln(ax)无实根.令三、填空题t(x)=In(ax)-x=In a+In x-x(x>0),t'(x)=13.1【解析】根据题意：集合A={x2+mx>0},1-1=1(x>0),由t(x)>0,得0-2},(1,十o)上单调递减，∴t(x)max=t(1)=lna一1.而·3·

广东省2023届高考综合能力测试（三）数学参考答案与评分标准1.【解析】A:由A∩(B)=☑可知B和A无公共部分，画图可知A三B,A∩B=A,AUB=B.2【解新1D:依题意得2，=-3-1，互=3=1=-(3-i3-)-8-6.43,z2-3-i(3+i)(3-i)105'53.【解析】C;如图，过点A作底面的垂线，垂足为B,过点B作底棱的垂线，垂足为C,考虑△ABC,结合题干条件即可得AC=√2，即正四棱台侧面的高为√2，根据梯形的面积公式可得该正四棱台的侧面积为12√2，其表面积为20+12√2.4.【解析1B:依题意得AC=-AB+AM,所以3AC=2AB+AM,即AM=3AC-2AB,所以A=9AC-12AB.AC+4AB2=9×(2V2)2-12×2V2×2cosA+4x22=40,所以|AM=2V10,即AM =2105.【解析】B:根据题意，F=22°+1=22+1>22=10e2=1032e2≈103203010=109632=10062×10°，因为1

独立.则下列选项中检测次数的期望值最小的是((参考数据：0.99≈0.951,0.990≈0.904,0.9920≈0.818)A.5个一组B.10个一组C.20个一组D.形不检验二、选择题：本题共4小题，每小题5分，共20分.在每小题给出的选项中，有多项符合题目要求.全部选对改动，的得5分，有选错的得0分，部分选对的得2分9.下列结论正确的是（乃）DA.若a>b,则lga>gB.若a2>b2,则a>b的C.若a>b,c>d)则ao2>bd2D.若ac2>bc2,则a>b0R10园限0P的度面00的年径，2，母线1=5，点A,B是00上的两个对点BA.△PAB面积的最大值为2B.△PAB周长的最大值为2V5+425H4X1x2C.当AB的长度为2时，面PAB与底面所成角为定值D.当1B的长度为2时，AB与母线1的夹角的余弦值的最大值为50+kB11.已知动圆2过点(0,1)，且与直线1：y=-1相切，记动圆Q的圆心轨迹为Γ，过1上一动点D作曲线「的两条切线，切点分别为A、B,直线AB与y轴相交于点F,下列说法正确的是A.Γ的方程为x2=4yB.直线AB过定点C.∠AOB为钝角(O为坐标原点)D.以AB为直径的圆与直线y=-1相交12.已知函数∫(x)=r2-a+e-,g(x)=+lnx当x∈[L,+o)时，f(x)≥g(x)恒成立，则实数a的可能取值为()木十mNB.D2三、填空题：本题共4小题，每小题5分，共20分13.某单位安排4名工作人员随机分到3个核酸采样点参加“核酸检测亮码”工作，且每个人只去一个采样点，每个采样点至少有一名工作人员，则安排方案的总数为3614.写出一个同时满足下列条件①②的函数f(x)=①f(x)的图象关于点(0,1)对称：②曲线y=(x)在点(1，f(1)处的切线方程为y=4x-1.15.若0a∈,0,sina=(2-cosa)am号则am圆16,如图，△4BC是面积为1的等腰直角三角形，记AB的中点为A,以CA,为直角边第一次构造等腰Rt△4BC,记AB的中点为A,以CA,为直角边第二次构造等腰Rt△4，B,C,,以此类推，当第n次构造的等腰Rt△ABC的直角边CB所构成的向量CB。与CB同向时，构造停止，则构造出的所有等腰直角三角形的面积之和为数学试题第2页（共4页）

阳中哈对三种假说进钉应正至昭通重庆至武定郎长水机)其等是本24°N餐坐长味楚图例生处)昆明南站…地铁公路③机场⊙高铁站溪、江川至玉溪易102°E图8:湖科强(1)简述斗南成为鲜花集散中心的优势条件。(6分)(2)从产业集群的角度，说明斗南花市对当地社会经济发展所起的作用。(8分)(3)借鉴阿斯米尔经验，为斗南花市进一步发展提出合理建议。(6分)19.阅读图文资料，完成下列要求。(12分)城市绿地作为一种天然的渗透设施，土壤入渗率反映城市绿地雨洪调蓄能力。从2000年开始，深圳市开始大规模兴建或改造绿地，由于存在较大人为干扰和压实导致土壤孔隙度变化，使绿地植被生长受到影响。图9示意深圳城市不同植被类型绿地的土壤入渗率差异。120■乔木一灌木100口草地入准率(mmm)90o200上层(0-30cm)下层(30-60cm)土壤深度图9(1)描述不同植被类型入渗率随土壤深度的变化特点。(6分)(2)同样深度的乔木土壤层入渗率明显高于草地土壤层，从植物根系和人类活动两个角度比较分析其原因。(6分)地理试题第6页（共6页）

(1)描述2017年四川省外出人口回流意愿强度的空间分布特征。(4分)(2)分析近年来促进四川省外出人员回流的主要原因。(6分)(3)指出近年来地方政府出台政策鼓励外流人员回流的目的。(4分)24.阅读图文材料，完成下列要求。(16分)庄浪县（位置见下图）地处黄土高原丘陵沟壑地带，荒山荒地广布，水土流失严重。近年来，庄浪县种植业区水利事业方面取得了一些成绩，但经济林区水利基础设施仍然薄弱，尽快着手改善的呼声渐高。花椒树，适宜种植在土层深厚肥沃的壤土、沙壤土中，耐寒、耐旱，抗病能力强，喜阳光、不耐涝，是一种经济价值较高的树种。庄浪县有家家栽植花椒树的老传统，房前屋后，农田篱笆墙，到处都能看到花椒树的影子。目前庄浪县花椒业悄然兴起，是规模化苹果园以外的第二经济林业，传统老花椒树扩展到了果园附近的小块山坡地，但依然呈零星栽植状态。和苹果相比，花椒栽种劳动强度小，省时、省力。新疆维吾尔自治区蒙古自治区宁治肃庄沁县四川(1)简述庄浪县目前发展花椒种植的意义。(6分)(2)分析庄浪县经济林区建设水利基础设施的必要性。(4分)(3)请为庄浪县花椒产业的可持续发展献计献策。(6分)25.阅读图文材料，完成下列要求。(14分》克鲁萨河流域大部分地区为石英地质，是新西兰第二长河（约338km)、流量最大的河流，并且流量稳定。19世纪后期，从这条河里出产了大量的黄金。一度有187台地理试题第7页（共8页）

W:We also explored the whole island,which was full of honey-colored buildings.The capitalcity,Valletta,has a lot of beautiful churches.We got lost a couple of times,but thefriendly locals helped us.M:Mmm...that was nice!I think I'll go there next summer.W:Well,if you do,you must visit the small island of Gozo.(Text 9)M:Lisa,when is your birthday?W:Aug 1st,but I don't celebrate it on this day.My birthday is close to my mom's birthday,Aug 5th,so we celebrate our birthdays together on that day.M:Oh,that's nice.Do you usually have a big birthday party?W:Yes,we do.My mom usually prepares the dinner,my father buys the birthday gifts,andmy brother is responsible for buying the birthday cake.M:It must be wonderful.What would you do at the party?W:First we watch the family videos together with my grandparents,and then we sing "HappyBirthday"and enjoy the meal and cake.After the party,we will open the gifts and go tobed.M:That sounds good.I also want to celebrate my birthday with a big family.But my familyare always busy with work,so I seldom celebrate my birthday with them.W:But you can still have fun at the birthday party with your friends,can't you?M:Yes,I really enjoy being with them.(Text 10)W:Hello,everyone.Today,I'd like to share with you a true story of mine.One day,myfriends and I had just finished dinner at a restaurant when it began to rain heavily.When it be-came lighter,I decided to brave the rain to get my car and go home.It was parked threeblocks away.My friends advised me not to go because at that time,I was due to give birth intwo months.I made a promise that I'd be very cautious.One of them wanted to accompanyme,but I insisted she stay with another friend who needed help with her baby.When I mademy way to the first crossroads,a cab stopped beside me and a young man with an umbrella gotout,telling me he would walk with me to where I would go.I was embarrassed and refused,but he insisted.During our walk,he kept reminding me to walk slowly.When arriving at thecar park,I thanked him,and we parted.I did not ask for his name and may not even recognizehim now.Did he purposely stop for me?It will never be known.·10【23·DY·英语·参考答案一R一英语6一QG】

(Text 9)M:It's so nice to see you!How long haven't we seen each other?Nine or ten years?W:Eleven years!The last time I saw you,we were graduating from college together.I can'tbelieve it's been that long!M:I know!What have you been doing?W:Well,I work for Google.I'm married and I have a one-year-old daughter.We're planningon moving to Hawaii soon.My husband has family and friends there,and we just love theweather!M:That sounds fantastic!Will you be able to work for Google there,too?W:They said I could,but I think I will look for a different job.What about you?How haveyou been?M:I've been okay.The years after college were hard.I couldn't find a job and I was still liv-ing with my parents.But now,I'm back in school to become a doctor.I live in a smallapartment in the city,and I have some great friends.Life is looking good!W:That's great!I remember you always did love science.M:Yes,I want to become a brain doctor.It needs a lot of schooling,but it's worth it.Whatkind of job will you look for in Hawaii?W:Well,I've always dreamed of becoming a clothing designer!I might try to find somethingthat involves fashion.M:Good luck！(Text 10)W:About two years ago I went with my class on our first school trip-five days in Paris!There were about thirty of us and four teachers.We all went in one big coach from our schoolin London.The teachers told us to be at school at four thirty in the morning.Everyone wasthere on time,but the coach didn't arrive until five o'clock and we didn't leave until five thir-ty!We were very cold and tired.Anyway,the coach was very comfortable and we watched videos and listened to somemusic on the journey.We had some sandwiches and drinks with us,so we went straight toParis without stopping.The hotel was very old,but our room was nice and the bed was great!I shared the room with three other girls.When we went shopping I tried to practice my French a few times but sometimes I didn'tknow the right words and spoke in English instead!The shops were great-I bought lots ofpresents,such as a dress for my mother,a bag for my dad and a T-shirt for my little sister!I think what I enjoyed most was the boat trip.I took lots of photos of my friends and thewonderful art galleries.I was sad to leave Paris.I had a lovely time there.·36·【23·DY·英语·参考答案一R一英语6一QG】

cunous classmates asking what brand my sweatersship became strange.are,I'd force a smile and reply in a half-joking3.结局推测：b第14期A4版Key(One possible version):(1)由续写第一段的T实战演练雨衣出现了。”Bookmarks for sale到妈妈后尴尬的WWe have a number of bookmarks for sale.Come(2)由续写第二段fiand pick your favorite!T妈妈再次试图乡These bookmarks are made by ourselves using plastic.lifMoreover,famous sayings from different countries are段可描写作者礻Tprinted on the bookmarks.So they can make it possible地体会到了母for you to gain knowledge while you are enjoying the【参考范文】Screading.In addition,they are designed in different shapesParagraph 1:reand colors for you to choose from.You can use themMom showed upyourself or send them to your friends as small gifts.If you're interested,please come to the Student Unionshe saw me,she caOffice after school.Beautiful bookmarks are waitingeverybody at the sclfor you all!I swallowed hard aof the road.Wher订报热线/质量反馈热线：back of her rainc400-009-8181silence,I shot a b读者来信：北京市北京经济技术开发区西环南路26号院30号楼A座805“读者服务部”收my backpack hea邮政编码：100176E-mail:syreaders@126.combike.Without a

2023届普通高等学校招生全国统一考试青同鸣大联考（高三）评分细则生物26【答案】(8分3)相继(1分)相同(1分)少量mRNA分口e(1分)d(门分)着丝粒分裂，姐妹染子就可以迅速合成大量的蛋白质(1分)色单体分开成为两条染色体由纺锤丝牵引分别移(4)与细胞内的特异性受体结合，进而诱导特定基向细胞两极（门分因的表达，从而产生效应(1分)(2)在赤道板的位置出现一个细胞板，逐渐扩展形29.【答案】(9分)成新的细胞壁，然后形成两个子细胞(1分)(1)①不能(1分)基因B经诱变处理后易位到(3)存在(1分其他常染色体上，子代中也会出现雌蚕：雄蚕一1(4)减数第二次分裂后期(1分)bc(1分)N:1(2分》(1分)②W(1分)白壳(1分)27.【答案】(7分)(2)ZW(2分)(1)150cm处的叶片能够接受更多的光照(1分)不认同(1分)净光合速率的单位E是um·m2·s,因此叶面积不是影响因素(位置合理即可)(2分(1分(2)CO2(1分)C。中间体→C6中间体（→淀粉）(1分)更多(1分)植物会通过细胞呼吸消30.【答案】(8分)耗部分有机物(1分)(1)3(1分)（第一个氨基酸）后面所有的氨基酸28.【答案】(8分)(1分)(1)自由扩散(1分)细胞质（基质）和细胞核(2)在原氨基酸序列中多一个氨基酸(1分)3(1分)(1分)(2)mRNA的碱基排列顺序可以传递遗传信息；(3)tRNA和核糖体(1分)翻译的模板(1分)mRNA是单链，比DNA短，能够通过核孔（答出(4)不同系统中翻译的起点不同(2分)一点得1分2分