起了对生物色彩这一经典进化生物学活题的热情。在功物研宽之外，科学家们发现的不少证据显示，植物也可能利用各种伪装策略来防御天敌。从？012年起，孙航和中国科学院昆明植物研究所牛洋博士在做青藏高原一喜马拉雅植物多样性形成与演变研究时，开始关注伪装植物。“我们从高山上的紫董属植物着手研究，注意到很多当地人来挖贝母，有时甚至会向我们推销刚来挖的鳞生。当然，我们也注意到梭砂贝母的伪装和叶色变异。”牛洋向科技日报记青介绍。“在一些群体中，梭砂贝母呈现常见的绿色，而在另一些群体中，它们则与背景融为一体，大多显出灰褐色，非常隐蔽，”牛洋博士介绍，他们起初推测，与囊距紫堇相似，这种伪装可能也是应对食草动物的防御策略。但在多地经过长达数年的观察，他们并没有发现动物取食梭砂贝母的明显证据。“由于体内富含生物碱，贝母属植物具有很强的化学防御，在一定程度上抵御了动物取食，那梭砂贝母为何要伪装？这让我们很因惑。”牛洋说，后来，他们才意识到，梭砂贝母的地下鳞茎长期遭到大量采挖，而这种采挖本身，有可能产生强烈的选择压力。这也意味着梭砂贝母的伪装，可能与人类有关！为了进一步搞清这一猜想，研究团队做了更深入的研究，他们比较了动植物伪装策略进化的差异、推测了影响植物伪装进化的要素，这不仅是一个惹人着迷的话题，更关系到人类与植物未来的关系和命运。“作为一味常用的中药材，人类取用贝母已经有2000年的历史，当代大规模采挖的历史超过80年。”牛洋说，为了评估每个群体遭受的采挖强度，他们从川滇一带基层药商那里得到了过去6年间梭砂贝母干品总量数据，并估算出每个群体单粒贝母鳞茎的干重。他们惊讶地发现，要获得一千克千燥鳞茎，意味着要挖掉3000株以上的贝母。这样的选择压力非同小可。牛洋说，通过样方统计和分布面积评估，他们得到潜在贝母产量，从而获得了每个群体的采挖强度。与此同时，他们发现采集强度越大的地方，贝母伪装的也越好。紧接着贝母色彩之谜的研究又摆到了眼前。牛洋与同事再次来到高山流石滩，采集每个群体的反射光谱数据，又根据专为人类设计的CIELAB色觉模型，量化植物与砾石的光谱，算出在群体之间梭砂贝母体色确实有显著差异。利用这一模型，他们还计算出贝母与生境岩石背景的匹配程度，来为伪装程度提供衡量的指标“背景匹配是利用自身色彩融入背景，让采挖者难以发现，实现伪装。”孙航说，考虑到采挖压力可能在较长历史内有变化，他们还评估了伪装程度与采挖难度的关系。因落脚地方不同，有的鳞茎采挖只需几十秒：有的长在数十厘米深处的石缝中，挖一颗需要数分钟甚至更长时间，从价值和时间成本计，术把者往往会放弃，遭受的采挖压力也较小。从实际经验看，越是难以采集的群体，植抹伪装越好与周围灰褐色的石头“浑然一体”；越是容易宋挖的拉株，越会大模大样”地保持道体透绿的本色，收功贝牙的体色与生存有显著的相关性，伪装增加了它们的生存概率。然而，“变色”的过程，仍有诸多有超的自然之谜。(摘编自赵汉斌《植物化身“变色龙”是人类“逼”出来的吗》4,.下列对材料相关内容的理解和分析，不正确的一项是(3分)早在150年前，科学家就已经有了植物利用伪装躲避天敌的看法，但因没有得到严格：实验证实，只能算是猜测012年之前，孙航和牛洋博士并未关注到伪装植物。之后他们从紫革属植物着手研字【以高三语文第3页（共8页）)

题有多个选项符合选得0分)总如®，光滑修直杆固定，杆上套一质量为m的环，环与轻弹资一清车（含管道）的质量相连.弹资的另一端固定在O点，A、B,C是杆上三点，0点与B点在同作质点的小球，质量太平代上，B>AB,AB=,环从A处由静止释放运动到B点时弹簧二小车，小球恰好能仍处子伸长状态，整个运动过程中弹簧始终处于弹性限度内，重力加速空气阻力，重力加度为g:环从A处开始运动时的加速度大小为2g,则在环向下运动的过程中BA环在B处的加速度大小为gB环在B处的速度大小为√2ghC.环从B到C一直做加速运动受合外力冲量大小D.环速度最大的位置在B、C两点之间10.如图所示，三个小球静止在足够长的光滑水平面上，B、C两个小球之间用弹簧连接起来，A球紧靠B球，m4=ms=1kg,mc=2kg。现用水会经历“日全食”过平外力从两侧缓慢压A球与C球，使弹簧处于压缩状态且弹性势能为,引力常量为G,地100J,再突然撤去外力，已知A球与墙壁碰撞无机械能损失，A球若能公转的影响，宇航与B球碰撞侧粘合在一起，全程弹簧始终在弹性限度内，下列说法正确的是A B77777777A,若只撤去右侧外力且按住A不动，则小球B获得的最大速度为智sB.若只撤去右侧外力且按住A不动，则在此后的运动中，弹簧将会多次出现弹性势能等于冷」的时刻C,若同时撤去两侧外力，则在此后的运动中三个小球将会多次出现5V22m/s的共速时刻D.若同时撤去两侧外力，则三个小球最终将会以某一共同速度匀速运功下十

特别是西周历史的基础上，以“仁”的观念对三代德性传统进行了高度概括，由此在根本上进一步确立了2023届高考模块分段测试卷（三）中华文明以道德为中心的文明根基，自此以后，中华文明将道德意识与道德要求渗透在社会各个方面。比如在政治上强调“道之以德，齐之以礼”的王道观，在经济上强调“义利之裤”“以义为利”的利益观，在世界秩序上强调“协和万邦”“各得其所”的天下观，在个人生活上强调“仁以为己任”“修身为本”的修养观语文这些无疑鲜明反映了中华文明以道德为中心来调节和规范社会生活的基本主场与思路。中华文明的人文觉醒，不是人作为个体的觉醒，而是人作为群体的觉醒。在中华文明看来，文明产生注意事项：于人对群体的知觉，因此，中华文明始终强调的不是个人的权力，而是群体的价值，个人的意义与价值也1.本试卷满分150分，考试时间150分钟2选择题的作答：每小题选出答案后，用2B铅笔把答题卡上对应题目的答豪标号涂黑。写在试题需要在群体之中得到说明。在中华文明的语境中，这种对群体本位的强调是以伦理本位的具体形式呈现卷、草稿纸和答题卡上的非答题区城均无效。的。具体而言，中华文明认为人总是处于不同的伦理关系中，粉演着不同的伦理角色，通过承担不同的伦3非遮择题的作答：用签字笔直接答在答题卡上对应的答题区城内。写在试题卷、草稿纸和答题卡理责任与他人建立紧密的关联，由此形成规模不一的群体。中华文明高度强调人伦的和谐，其实质表达上的非答题区域均无效，的是对群体价值的重视。而在中华文明的视野中，群体价值的实现亦即和谱伦理关系的达成，主要是建4本卷命题范国：人教版必修下册立在个人对伦理责任的承把上，而非个人对权力的主张与欲求上。也正国为如此，中华文明很早就建立一、现代文阅读(35分)起以他人为重、责任义务为先的伦理道德意识，使伦理本位与德性传统高度结合在一起，(一)现代文阅读I(本题共5小题，17分】(摘编自营润青（中华文明独特的“文明”意识）阅读下面的文字，完成1~5题材料二材料一：在中华民族不断走向繁荣复兴的今天，对中华文明的精神特质进行科学系统地提炼、总结和概括，具中华文明是人类文明的发展源头之一，同时又是世界历史上唯一实现连续发展的文明体。在应对战有重大的必要性和现实意义。在五千多年漫长的历史文化积淀中，中华文明培育了讲仁爱、重民本、守减争分梨、族群差异、文化冲击等历史重大事件的过程中，中华民族保持了国家的统一、民族的融合、文化的信、崇正义、尚和合、求大同的精神特质，这是一个国家、一个民族气质的鲜明体现，也是我们对于自身精和请以及传统的延续，形成了统一、连续、和谐的民族共同体和政治文明体，取得了世所罕见的成就。数神特质的体系化闲释，它不仅铸就了中华民族独特的精神标识，而且成为中华民族应对一系列国际、国内千年未，对中华文明始终抱持高度自觉与认同的中华民族，始终坚决维护中华文明的独特性、普遍性与神复杂问题的价值支撑，更是我们中国共产党人执政理念的具体写照。圣性，体现了自觉而深层的中华文明立场意识几千年来，这些精神元素已经在各族人民心中深深扎根，激励着全国各族人民奋勇前进，激励着我们从中华文明的立场来看，文明首先意味看人摆脱神成为天地中自立自主自为的存在，意味着人对自中国共产党人在革命、建设、改革的伟大征程中度续初心、砥所前行。无论国际局势如何纷紧复奈，世界身的自党。世界上绝大多数的文明都是宗教性文明，与此形成强烈对比的是，中华文明最早实现了从“以格局如何调整变化，中国人民始终秉承着仁爱、民本、减信、正义、和合、大同等价值理念来处理国际事务，神为本”到“以人为本”的转向，莫定了以人为中心的人文立场。夏商时期，中华文明仍保留着崇拜鬼神的发展国际关系，通过扎实推进“一带一路”建设、携手构建人类命运共同体等重大战略，显了中华民族推原始信仰，现今传世的大量甲骨就是古人占问鬼神的实物材料。面对人神相通导致的严重问题，西周社动人类文明发展进步的大国责任、大国担当。会产生了人文主义思潮，这一思潮重新对人神关系加以思考，并重建了两者关系，神被放置于人之后，人中华文明的精神特质是我们进行历史实践的重要精神力量，是展现中华民族凝聚力、生命力、战十取代神成为文明的中心。此后，儒家继承西周时期的人文立场，提出“敬鬼种而远之”的观念，明确将文明力、影响力的特殊价值元素。中华文明有着深厚文化底蕴，要在中华优秀传统文化的传承、转化和创斯的边界限定在属人的方内世界，鬼神代表的宗教系统则被置于方外世界，存而不论。人文立场作为中华中，自觉弘扬中华文明的精神特质，更好构筑中国精神、中国价值、中国力童。要在交流互鉴中，讲好中华文明的基本立场，它的影响广泛存在于中华文明的各个方面。文明故事，让世界各国人民真正了解中国的过去、现在、未来，切身体味中华文明的精神魅力。要在躬身如果说中华文明的人文主义体现的是人对自身的觉醒，那么中华文明的道德中心主义则进一步表实戏中增强历史自觉，坚定文化自信，以中华文明的精神特质为引领，汇聚14亿人的晴傅力量，全面推进明，人对自身的觉醒不是对人的欲望，本能，情感理性或共他方面的觉配，而主要是对人自身的道德意识社会主义现代化强国建设，实现中华民族的伟大复兴，的觉服。由此来看，人文主又与道德中心主义是一而二的关系，二者在本质上构成了中华文明的一体两(摘编自常明杰《坚定文化自信弘扬好中华文明情神特质)面。进言之，从中华文明的立场出发，文明与野变的区别，不是像古看腊那样建立在理性或者知性的自觉1.下列对材料相关内容的理解和分析，不正确的一项是(3分)上，而是建立在人的佛性自觉上，从历史的角度米看，西周人文主义思物的产生，在推动产生了以人为中入中华民族虽然经历了成争分裂、文化冲击等，却能形成统一、连续、和谐的民族共同体和政治文心的人文立5外，乃一个堂大错果就是教动了”数德保民”他性传能的广生。为此，孔子在总结三代历史明体【2023届高考模块分段测试卷（三），语文第1项（共8页）】【202出届高考横块分股测试卷（三）·语文第2页（共8页）】

40分钟随堂练习（九】-、1-4CADB5-8 CBDA二、9-13 CABAB14-18 DCADB19-23 BACDC24.name25.but26.legs27.only28.where29.saves30.forget31.cute32.me33.scary34.to see三、35-39 AGDBE40分钟随堂练习（十）-、1-3ABC4-7 DCCD8-11 BACD二、12-16 AECBG

40分钟随堂练习（九】-、1-4CADB5-8 CBDA二、9-13 CABAB14-18 DCADB19-23 BACDC24.name25.but26.legs27.only28.where29.saves30.forget31.cute32.me33.scary34.to see三、35-39 AGDBE40分钟随堂练习（十）-、1-3ABC4-7 DCCD8-11 BACD二、12-16 AECBG

22.文中画波浪线处是个长句，清改成三个短句。可以改变语序、 少量增删词语，但不得改变原意。(3分) 答：

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2如惠必带D是这长为1的正方形，：，水分别是，D边上的动点，下A.若△MN的周长为2，则∠MCW的正切值等于I列命题中正确的有B香A的活积为号则2CE切的最小值为C.若△M0N的周长为2，则CW.C丽的最小值为2V2-2D若△M0的面积为则.C丽的最大植为、5三、填空题：本题共4小题，每小题5分，共20分。13.己知组，0，B32,Ckk+1keR,若AB1BC,则无=14.已知棱台两底面的面积分别为1和4，载得这个棱台的棱锥的高为6，则这个棱台的体积为1小司15.已知0是△4BC所在平面内一点，2OA-OB+3OC=0,则△AOC与△ABC的面积比=16.已知{a,)是平面内一组基底，12a+b=-1,a-b1=5,则a+b与2a+b所成角的最大值为四，解答题：本题共6小题，共70分。解答应写出文字说明、证明过程或演算步州17.(10分)设复数z=a+a,beR),i为虚数单位，且满足1z+z=-4+图i(1)求复数z:(2)复数z是关于x的方程x2+x+q=0的一个根，求实数P,q的值.18.(12分)如图，圆柱内接于球O,己知球0的半径R=2,设圆柱的底面半径为r,(1)以r为变量，表示圆柱的表面积S:和体积'：(2)当，为何值时，该球内接圆柱的侧面积最大，最大值是多少？.0高中2022级数学试题第3页（共4页）

第二节听下面一段对话，回答第6至第7两个小题。岁美浮报社6-7 CAEARNING ENGLISH6.What can Tony do?听A.Play basketball.B.Play soccer.七年级★河南第29期（第5-6版)C.Play ping-pong.理小报能力提升7.When will they play the sport?(第七章第二节)A.This Sunday.B.This Saturday®C.This Thursday.第一节1-3 ACB听力材料：1.When did Andy learn to ride a bike?听A.At the age of 5.B.At the age of 6.W:Let's go to play basketball,Tony.C.At the age of 7.力M:Sorry,Anna.I can't play it,but I can play理2.What's wrong with Ben?ping-pong well.A.His arms hurt.B.His ears hurt.C.His eyes hurt.解W:Playing ping-pong is interesting,too.Are you3.Where was the boy last Sunday afternoon?free this Sunday?A.At school.B.In a restaurantM:Yes.We can play ping-pong on that day.C.In a park.听力材料：听下面一段对话，回答第8至第9两个小题。1.W:Andy,when did you learn to ride a bike?8-9BA听M:When I was five years old.2.W:Ben,you don't look well.What's wrong?8.Which subject does David like best?力A.Biology.B.English.驛M:My eyes hurt.I think I should see a doctor.C.Chinese.3.W:Where were you last Sunday afternoon?You9.How does David learn the subject?didn't go to the basketball lesson解A.By reading stories.M:Oh,it was my cousin's birthday.He had a partyB.By having more classes.in a restaurant.I went there.C.By asking teachers for help.听力材料：第一节4-5BC听W:Wow,David.Your English is so good.4.When will Jane go to the swimming pool?M:Thank you,Alice.English is my favorite subject,A.In the morning.B.In the afternoon.听理so I learn it hard.C.In the evening.W:How do you usually learn it?5.Who may know how to use the computer?理A.Sara.B.Paul.M:I read English stories before going to sleep.C.George.原听力材料：听下面一段对话，回答第10至第12两个小题。4.M:Jane,can you swim?W:Yes,I can.And I can do it well.10-12BCAM:Really?That's great.Can you be my swimming10.How does Helen go to school?teacher?A.By bike.力W:No problem.We can go to the pool in the听B.By car.C.On foot.afternoon.11.What does Helen want to learn?解5.M:Sara,can you tell me how to use that newcomputer?理A.How to speak English well.B.How to play the guitar.W:Sorry,Paul.I can't use that.You may askC.How to play basketball.George for help.12.Who is Kevin?M:Oh,right.He knows kinds of computers well.A.Helen's classmate.B.Helen's teaW:Yes.Let's go to find him.C.Helen's father.

数学周刊参考答案第1期苏科八年级3版∠DFE,∠EHJ=∠HJF=90°.所以△EHM≌△FJM.BD=12×8×10=40.所以甲、乙二人的土地面积不变15.证明：(1)因为AB∥DE,所以∠B=∠E.因为AC∥FD,拓展训练所以∠BCA=∠EFD.因为FB=CE,所以BC=EF.证明：(1)因为△ABC和△DBE是等腰直角三角形，所以在△ABC和△DEF中，∠B=∠E,BC=EF,∠BCA=∠EFD,AB=BC,BD=BE所以△ABC≌△DEF(ASA).因为LABC=∠DBE=90°，所以ABC-∠DBC=LDBE-∠DBC,(2)因为△ABC≌△DEF,所以AC=DF即∠ABD=∠CBE.在△AC0和△DF0中，∠AOC=∠DOF,∠ACO=∠DF0,在△ABD和△CBE中，AB=CB,∠ABD=∠CBE,BD=BE,所AC=DF,所以△ACO≌△DFO(AAS).所以AO=DO.以△ABD≌△CBE(SAS).16.(1)解：在△ABC和△ADC中，AB=AD,CB=CD,AC=所以AD=CE.AC,所以△ABC≌△ADC(SSS).所以∠ACB=∠ACD.(2)延长AD分别交BC和CE于点G因为∠BCD=80°，所以∠ACB=∠ACD=40°.和F,如图所示(2)证明：在△COD和△COB中，CD=CB,∠DCO=∠BCO,因为△ABD≌△CBE,所以∠BAD=∠BCE.DCO=CO,所以△COD≌△COB(SAS).因为∠BAD+∠ABC+∠BGA=∠BCE+G(3)解：因为△COD≌△COB,所以LDOC=∠BOC=90°，∠AFC+∠CGF=180°，∠BGA=∠CGF,所以所以S形w=Sam+Sa0=2AC~D0+2AC~B0=)AC:∠AFC=∠ABC=90°.所以AD⊥CE.

7.满足下面两个条件的整数a的所有取值之和为x-a<-1,①关于x的不等式组的解集为☑；z(3.x+2)≥132x+y=7,②关于x,y的二元一次方程组ax-y=1有正整数解(x,y均为正整数).A.9B.8C.7D.68.杭州第19届亚运会于2023年9月23日至10月8日举行，经调查，亚运会中球类、田径类、游泳类比赛深受学生喜爱.小明统计了其所在班级50名同学观看球类、田径类，游泳类比赛情况，每人至少观看过其中一类比赛，有15人观看过这3类比赛，18人没观看过球类比赛，20人没观看过田径类比赛，16人没观看过游泳类比赛，因不慎将观看过其中两类比赛的人的数据丢失，记为m,则由上述可推断出m=A.16B.17C.18D.19二、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，全部选对的得5分，部分选对的得2分，有选错的得0分。9.下列命题是真命题的有A.3x∈R,lx|-2x≤0B.Hx∈Z,x2∈QC.Vx∈R,x2-2x+4>0D.x∈R,x2+3x+5=0l0.已知实数a,b,c,d满足a<√b1且ab=b+1,则2a+b的最小值为16.已知集合A={(x,y)川x2+y2=a},B={(x,y)|(x-1)2-b(y-2)2=1},在求A∩B时，甲同学看错b的值，求得{（一1，-1）}二(A∩B),乙同学看错a的值，求得{(1,3)}三(A∩B),若甲、乙同学求解过程正确，则A∩B=数学第2页（共4页）

that it has a collection of roughly 400 thousands art works,paintings and sculptures included.thousandIn front of the museum is a glass pyramid designed by leoh Ming Pei.Who makes LouvreWhatworld-famous is Da Vinci's Mona Lisa.It is a pity that not all the collections are openly to the public,and Louvre is very worth aopenwellvisit.书面表达One possible version:Dear Tom,As you are very interested in Chinese kung fu,I am very excited to invite you to attendthe Martial Arts Festival.It will be held next weekend in my city.When being there,we can visit an exhibit,from which we can learn the history and signif-icance of Martial Arts Festival.Besides,we can watch many martial arts competitions and enjoy some wonderful shows.At the same time,we can also taste some delicious local snacks.Ibelieve you will really enjoy itLooking forward to your early reply.Yours,Li Hua附：听力部分录音材料(Text 1)W:Excuse me,sir,didn't you see the red light?M:Oh,I thought I could make a right turn on red here as I am hurrying back to work afterdinner.(Text 2)W:What can I do for you?M:I want a ticket to New York.How can I get there as soon as possible?W:This afternoon there's a flight leaving at 3:30.You'll get there 3 hours later.Is that OK?M:OK,thank you.(Text 3)W:So when are you going to Sweden,tomorrow or the day after tomorrow?M:Neither.Don't you see I'm packing now?My train leaves in just five hours.W:I thought you were just going to do your laundry.(Text 4)W:Hey Kevin,where are you going?M:I'm heading over to the gym.I've been studying all day at the library and I feel an hour ofexercise would do me good.·33·【24·G3DY·英语·参考答案一R-必考-QG

rivers.Yellowstone is one of the best national parks in the world to study the geological activity of theEarth.Goreme National Park,TurkeyPrepare to lay your eyes on volcanic landscapes situated in a UNESCO World Heritage Site atGoreme NationalPark in Turkey.Hike the high hills,explore nearby villages and witness stunningmulti-colored cliffs formed from basalt.Goreme National Park is one of the best national parks in theworld for hot air ballooning.Caingorms National Park,ScotlandThe largest national park in the United Kingdom,the Cairngorms provide exceptional wildlife andbirdlife-including some of the rarest birds of prey in Europe.Hill climbers will be kept busy with the55 munros(a mountain peak higher than 3000 feet)in the park.21.Why is the Etosha National Park attractive?A.It is located at the top of a volcano.B.It has a vast salt area and impressive wildlifeC.The zebra will be attracted to the park in the rainy season.D.Visitors can cycle around the park to see various animals.22.Who is most likely to be interested in Yellowstone National Park?A.One wishing to wander on a flat coastal plain.B.One wanting to hike over multi-colored mountainsC.One expecting to learn about the geography of the Earth.D.One dreaming to act in a drama set in the canyon of the park.23.What do Goreme NationalPark and Caingorms National Park have in common?A.They are both the habitats of flamigos.B.They both feature colorful rocks and hills.C.They both attract visitors who love climbing high hills.D.They are both on the list of UNESCO World Heritage SiteBIn 2015,Brian Peterson and his wife,Vanessa,had just moved to Santa Ana,California.Outsidethe couple's apartment,a homeless man was often yelling on the street cornerOne day,Peterson was relaxing in his living room,reading the book Love Does,about the powerof love in action,when his quiet was disturbed by the homeless man.Inspired by the book'scompassionate message,Peterson made an unexpected decision:He was going to go outside andintroduce himself.In that first conversation,Peterson leamned that the man's name was Matt Faris.He'd moved toSouthern California from Kentucky to pursue a career in music,but he soon fell on hard times andended up living on the street for more than a decade."It was the weirdest thing to me,"Peterson recalled later."I saw beauty on the face of a man whohadn't shaved in probably a year.But his story,the life inside of him,inspired me."And even thoughPeterson hadn't picked up a paintbrush in about eight years,he found himself asking if he could paintFaris's portrait.Faris said yes.Peterson's connection with Faris led him to form Faces of Santa Ana,a nonprofit organizationfocused on befriending and painting portraits of members of the community who are unhoused.Peterson sells the portrait for a few thousand dollars,putting half of the profits into what he calls a"love account"for his model.He then helps people use the money to get back on their feet.Many of Peterson's new friends use the donations to secure immediate necessities-medical carehotel rooms,food.Faris used the funds from his portrait to record an album,fulfilling his musicaldreams.When the check was delivered,"they both wept in my arms,"Peterson recalls.Having painted 41 of these portraits himself,he's discovered that the buyers tend to connect to thestory of the person in the painting.finding similarities and often friendship with someone they might高二10月联考英语（人教版）第3页（共8页）

both gases.A final pair of rings was a control and received no added gases.The tests took place over two summers. During each field season,the scientists counted how many times insects visited the flowers in each ring. "The results were much more serious than we thought,' Ryalls says."Adding both the diesel exhaust and ozone pollution caused up to 90 percent less insects to be able to find the flowers that they need for food,he says.This was in comparison to the pollutant-free rings.In some cases,only some 30 percent of the polli nating insects even entered the circles with pollution. Many insect populations have been falling due to changes in land use,climate change and exposure to pesticides.This study focused on insects finding flowers.But insects also use smells for

二、选择题（本大题共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.全部选对的得5分，部分选对的得2分，有选错的得0分)题号9101112答案BCADACACD9.BC【解折】对于A,易知D()=8X×(1-)=昌，而)2+1，所以D()=2XD)=6,A错误对于B,共有7个数据，而7X60%=4.2,故第60百分位数为9，B正确；对于C,若样本数据x1,x2,…,xm的平均数为2，则3x1十2,3x2十2，…，3xm十2的平均数为3X2+2=8,C正确；对于D,由古典概型可知：从51个体中抽取2个个体，每个个体被抽到的概率都是导D错误.10.AD【解析】由题意知，与两圆均有公共，点，且斜率最大的直线恰为那条两圆斜率为正的内公切线，由相似比可知其与x轴交于(，0)，进而可求得其斜率为号，选项A正确.与1，均有公共点的圆的半径可以任意大(无最大值》，选项B错误向，引切线，切线长相等的点的轨速是直线品选项C错误，设1，山的国心分别为0，O点P对切线的夫角于点P对切践的美角，于是由相似三角形红品3，可得到点P的轨迹是一个圆，选项D正确.111.AC【解析】因为f(2π-x)=cos(2x-x)十os(4r-2)=c0sx+c0s2x=fx),故A正确.因为f(0)=2,1f()=-1,故f(x)的图象不关于点（开，0）中心对称，B错误.由f(x)=cosx十20os一2c0sx-c0sx十1=(c0sx十1)(2cosx-2c0sx+D=0,得cosx=-1,即x=(2k+1)π，b∈Z,故f(x)的所2c0s2x-12cos2x-1有零点为(2k+1Dm,6∈Z.C正确，因为fz十)=cos(r十元)十o0s2十2n=-c0sx+os2z故fx+x)1=f(x)不恒成立，故D错误.12.ACD【解析】f'(x)=2x-1,所以f(x)在，点(xm,f(xn)处的切线方程为：y-f(xn)=f(xn)(x-xm),令y=0,得xn+1=xm一经胃收A气肾的x1-3z+6二（十2）2x-3),故2xn-1m十22n士即a2a所以数列Q,是以1为首项，2为公比的学北数列，故B错误，Cxn+1-3所以S-01）=20-1,D正确.1-9三、填空题（本大题共4小题，每小题5分，共20分）13-2【解折】/-x)-1og,4-1D-mx-1oe(+1)-m-1og1-mx-1o,4r+1)-(m+1Dz,因为f(x)为偶函数，则Hx∈R,f(一x)=f(x)恒成立，从而一(m+1)x=mx恒成立，即(2m十1)x=0恒成立，所以m=一2114.√2【解析】由题意，a十b=1,则(Wa+√b)2=a+b+2√ab=1+2√ab,.'a+b≥2√ab,∴.1≥2√ab,∴.(Wa+√b)2≤2，∴√a+√b≤2.15.20【解析】公差为-1时，有987,876，…，210共8个；公差为一2时，975,864，…，420共6个；公差为-3时，963,852,741,630共4个；公差为-4时，951,840共2个.所以一共有8+6+4+2=20个.数学试题参考答案一2

【答案】 One possible version: Dear Mr Edward, I'd like to ask you to take part in "The differences between Chinese and Western Educational Systems"event to be organized by the Students'Union in our school. Scheduled from 8:00 am to 5:00 pm next Sunday,the event aims to help students learn more about the topic.There will be interesting lectures given by some experts and various forms of performances by students. We'd really appreciate it if you could offer some suggestions on how to improve the event.Looking forward to your reply. Thank you！ Yours sincerely, Li Hua

第三部分语言运用（共两节，满分30分） 第一节（共15小题；每小题1分，满分15分） 阅读下面短文，从每题所给的A、B、C、D四个选项中选出可以 填人空白处的最佳选项。 Having a job is great.It means I can have a place to 41 in.And with an above-average job,I can afford a car and over- seas vacations. However,I also understand how 42 it is to live with a below-average job,having had many jobs of this kind before.It's quite awful. I emailed my 43 to every company with an online careers page.I even printed my resume(简历)and 44 it out to hundreds of offices.

keep yourself safe when using a microwave oven. Microwaves are a type of electromagnetic radiation(电磁辐 )or waves of energy that move through space,according to the FDA.Electromagnetic radiation takes different forms,inclu- ding radio waves,visible light,X-rays and gamma-rays.Micro waves,like radio waves,are a type of“non-ionizing(非电离) radiation",Microwaves are therefore not known to damage DNA inside cells,according to the American Cancer Society.By con- trast,X-rays and gamma-rays are classified as "ionizing radia- tion",a type that does have enough energy to remove electrons from atoms and can damage cells and DNA. Even though microwaves don't present the same health risks as X-rays,that doesn't mean they are risk-free.Microwaves heat

25.Robert Winston's reaction on the train can be described as A.a way of returning good for evil B.a good example of stopping rudeness C.an answer to the call of the journalists D.an act of answering rudeness with rudeness 26.Being infected with rudeness can possibly lead to A.wiser decisions B.poorer work performance C.more destructive revenge D.more face-to-face communication

senior high school.Live away from my home for the first time,I found life there a bit difficult to get used.And the training officer was strict with her.I once thought I couldn't be stick to it.But anyway,I succeeded.The training made me much strong to adapt to life than before,but I think the difficulties have now become a precious memory in my life.In short,learning to regard the challenges of life as a stepping stone to future success and make a best of them.

1、衡水金卷先享题2024答案数学分科综合卷 新教材乙卷A

1、2024届全国高考分科调研模拟测试卷 XGK(四)4政治z

①创新性思维能够把观念的存在变为现实的存在②社会实践基础上的理论创新能够推动科技创新③对事物联系多样性的科学认

2、衡水金卷先享题2024答案数学分科综合卷 新教材乙卷A

16,已知P.Q是椭圆写+y-1上的两点（点Q在第一象限），若M1,0),直线PM,QM的斜率互为相反数，且|PM|=21QMI,则直线QM的斜率为【答案】1【解析】延长PM交椭圆于N,由对称性可知|QM=|MN|,设直线PM的斜率为k,则直线PM的方程为y=6-1D6<0,联立方程组二”满去上得合+3到+会-2=0，设P(,N,则x2+3y2=3,-2k-2k2ky1十：=1十3周为1PM=21QM1,所以1=-2y:,所以y1十：=-：=1十3，即：=1十3，所以:=+1起Na+1,)代入满国方双十+1+3()广=3，你得“=1，所2以k=一1，所以直线QM的斜率为一k=1.三、解答题：本题共6小题，共70分。解答应写出文字说明、证明过程或演算步骤。17.(10分)已知抛物线C:y2=4x的焦点为F,准线为l,P是抛物线C上的动点.(1)若P在直线1上的投影为P',且△PFP'为等边三角形，求点P的坐标；(2)过点P作直线11，l2分别交直线l于点A,B,若△PAB的内心恰为原点O,求△OAB面积的取值范围解：(1)由题意可知，F的坐标为(1,0)，因为PP'平行于x轴，所以P'的横坐标为-1，设P(x0,yo),则P'(-1,yo),因为△PFP'为等边三角形，所以|PF|=|P'F|,即V(x0-1)2+y6=√-1-1)2+y,解得x=3.所以点P的坐标为(3，士2√3)(2)设P(m,n),则l1的方程为y一n=k1(x-m)交修世发意长(因为过点P作直线11，l2分别交直线l于点A,B,△PAB的内心恰为原点O,所以从点P作单位圆的切线，即11，l2,其与直线1交于点A,B,则A,B两点须一个在x轴上方，一个在x轴下方，所以m>1.因为原点0到1，的距高为1，所以，m一=1，√/1十整理得(m2-1)k-2mnk1+(n2-1)=0.设l2的方程为y-n=k2(x-m),同理可得(m2-1)k号一2mnk2+(n2一1)=0.因为k1,k2是关于k的方程(m2-1)k2-2mnk十(n2-1)=0的两根，2mnk1十k2=m2-1所以，0所以yA-ya=:(-1-m)-k,(-1-m)1=(m+1D.2Nm2+m_2Vm+4m-三m2-1m-1所以△OAB的面积为S=2yA一yB·1√m2+4m-1m2+4m-1m-1(m-1)2令t=m-1>0,则S=。平-4()++1，t2再令u=1>0,则S2=f(u)=4u2+6u+1,由u>0,可知f(u)在区间(0，十∞)上单调递增，所以f(u)的取值范围为(1，十∞)，所以S的取值范围为(1，十∞).·97·

1、安徽省2023年八年级万友名校大联考教学评价三历史

1、万友·2023-2024学年上学期 语文九年级教学评价一语文答案

、猜题10.下列对文中画波浪线部分的断句，正确的一项是(3分)A.沙门法雅坐妖言诛/同空裴寂尝闻其言/辛

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