山东省青岛市城阳区第九中学2019-2020学年八年级第一学期10月(word版 无答案)

2019-2020学年山东省青岛市城阳八中九年级（上）段考物理试卷1.扩散现象表明()A. 分子之间有相互作用力B. 分子永不停息地做无规则运动C. 分子之间没有空隙D. 物质是由分子构成2.有关扩散现象，下列说法中正确的是()A. 扩散现象使我们直接观察到物体里分子的运动B. 空气很容易被压缩，说明分子间有引力C. 只有液体和气体才有扩散现象D. 扩散的快慢与温度有关，温度越高，扩散现象进行的越快3.下面所示的各图中正确的是()A. B.C. D.4.下列现象中，通过做功方式改变物体内能的是()A. 人用热水袋取暖B. 一杯水慢慢变凉C. 给自行车打气，气筒发热D. 冬天手冷时，对手“哈气”5.绝缘体不容易导电的原因是()A. 绝缘体内几乎没有电荷B. 绝缘体内自由电荷很少C. 绝缘体内没有电子D. 绝缘体内只有电子6.春季培养秧苗时，为了保护秧苗夜间不受冻，傍晚时，往秧田里多灌些水，这样夜间秧田的温度不致降低太多，防止秧苗冻坏，这是利用了水的哪个特性()A. 水凝固时放热B. 水的比热容大C. 水的凝固点低D. 水不易传热7.如图所示的事例中，属于用热传递的方法改变物体内能的是()A. 两手摩擦能发热B. 烧水水变热C. 锯木材锯子发热D. 钻木取火8.初温相同的铜和铅，它们的比热容之比是3：1，质量之比是2：3，若它们吸收相等的热量，铜升高的温度与铅升高的温度之比是()A. 1：2B. 2：1C. 2：9D. 9：29.回顾所用的科学方法，下列说法不正确的是()A. 研究分子间作用力时，把分子看成用弹簧连接的两个小球，是采用模型法B. 通过扩散现象来认识分子的运动是转换法C. 用电路图表示电路连接情况，采用的是等效法D. 做功和热传递在改变内能上是等效的，是等效法10.下列说法中不正确的是()A. 一桶水比一杯水的比热容大B. 物体吸收热量越多，比热容越大C. 某种物质温度升高1℃吸收的热量叫这种物质的比热容D. 质量相同的不同物质升高相同的温度，吸收的热量多的物质比热容大11.“在热水和冷水中分别滴入墨水后，热水比冷水变色快”，根据这一实验下列说法正确的是()A. 扩散快慢与温度有关，温度越高扩散越快B. 温度越高分子热运动越快C. 说明物质的分子都在不停地做无规则运动D. 物体内能增加，机械能也变大12.如图所示电路中，下列说法正确的是()A. 闭合开关S2和S3，断开S1，则灯L1和L2并联B. 闭合开关S1和S3，断开S2，则只有灯L2工作C. 闭合开关S3，断开S1和S2，则灯L1和L2串联D. 闭合开关S1和S2，断开S3，则会发生短路现象13.小明阅读了下表后，得出了一些结论，其中正确的是()几种物质的比热容c/[J⋅〔kg⋅℃〕−1]水 4.2×103干泥土0.84×103冰 2.1×103铜0.39×103煤油 2.1×103铅0.13×103水银0.14×103砂石0.92×103A. 沿海地区昼夜温差比内陆地区小B. 同种物质在不同状态下，其比热容不同C. 质量相等的铜块和铅块，升高相同的温度，铜块吸热多D. 液体的比热容都比固体大过程将空气压燃仪(如图)的活塞迅速压下去，看到棉花燃烧。

2019-2020学年度第二学期期末质量检测八年级英语试题(考试时间:120分钟；满分:120分）真情提示:亲爱的同学，欢迎参加本次考试，请你把所有试题答案都写在答题纸上，祝你答题成功!第I卷(共60分）第一部分听力测试（20分）（略）第二部分笔试部分Ⅳ.单项选择。

(本题10小题，每小题1分，共10分）从每小题所给的四个选项中选出最佳选项。

21.—My sister hurt her arm while playing basketball yesterday.—.A.No problemB.I'm sorry to hearthatC.That's OKD. It doesn't matter.22.My uncle is repairing some old bikes and he plans toto charity.A.give up themB.give-them upC.give away themD.give them away23.—Do you like talking with your friends on the phone or QQ?—.I enjoy using WeChat.A.BothB.NeitherC.EitherD.All24.American peopleandBritish people speak the samelanguage, theircultures are quite different.A.SinceB.AlthoughC.IfD.Because25.While I TV,Ia sound outside the room.A.was watching; was hearingB.watched; was hearingC. watched; heardD.was watching; heard26.Imy husband in Shenyangin 2014.A. got marriedB.marriedC.married withD. was married27.—Many boy students think math isEnglish.—I agree. I'm weak in English.A.much difficult thanB.so difficult asC. less difficult thanD.more difficult than28.I’m tired now.Le t's stop.Weneed to stopa break.A. working;to takeB.working;takingC. to work; to takeD.to work; taking29.—I'll return the umbrella to Lucy, but I can't find her anywhere.—Shethe library, you can go there to find 'her.A.has gone toB.has been toC.has leftD.went to30.My sisterQingdao two years ago, shefor two years.A.has left; has leftB.left; has been awayC.left;has leftD.has been away;has been awayV.完形填空。

2019—2020 学年度第一学期质量检测九年级英语试题(本次考试满分120分考试时间：120 分钟)第一部分客观题(60分)I、II 听力（15分）（略）III.单选(10分)16.—How do you study for a test, Judy? —I study bynotes.A. takingB. takeC. to takeD. takes17. Peter, theyou practice, theyou read.A.more;fasterB.much;fastC.much;fasterD.more;quickly18. The boy said he sawUFO in the sky. I think he isn't_____honest boy.A.a, anB. an, anC. an, theD. the, a19.—I wonder. —I'm afraid we'll be late.A. how can we be on timeB. what we are going to doC. why we get to school lateD. if we will arrive at the meeting on time20. I don't have a partnerEnglish.A. to practice, withB. to practice, toC. practicing, withD.practicing, to21. — Could you please pass me the book? —.A. Yes, I couldB. No, I couldn'tC. Sure. Here you areD. No, that's no problem22.Therea swimming pool here.A. used to haveB. was used to beC. used to beD. is used to have23. You will achieve nothingyou work hard.A.ifB. unlessC. whenD. that24. —Mom,I hang out my friends now?—Sure, but youclean up your bedroom first.A. can; needB. may; have toC. must; needD. need; must25. —I often chat with my friends on the Internet.— You are so smart! Will you please tell me?A. how to doB. how to do itC. how to use B. when can I use itIV. 完形填空(10 分)This morning I got an e-mail from Roy. It seems that my boy reallyenjoys his new life at Harvard University. The26made me think ofthe first day when we moved into this house.Little Roy ran around the new house with great excitement and triedto move his own things into the house such as his toys, books and clothes.27 , his little hand knocked over(打翻) a bottle of paint on the shelf.The paint made the tidy floor and white wall a terriblemess(一团糟) ."Oh, my God ! "My wife rushed in angrily. I looked at my son, andhis small face was filled with28.I29 and held his hand, "Take it easy, Roy. Now let's dosomething to make it look 30 ."I took outa 31 ,"You see, Dadis a magician(魔术师) . I can change it into a big tree. "His mother soon helped paint some butterflies and flowers on the wall.We spent the whole afternoon 32 and laughing. The wall becamea beautiful forest with plants, birds and small animals. Blue sky and whiteclouds were also painted by Roy. On that day everybody in the houseknew something 33 happened.The nightbeforeRoy leftfor Harvard, he asked me if I stillremembered the day when he had knocked over the paint. "Since then I've 34 worried about making mistakes", he continued, I believe I canalways 35 ways to solve the problems."( )26.A.call B.e-mail C.card( )27.A.Suddenly B. Luckily C.Gladly( )28.A.happiness B.hope C.fear( )29.A.cried B.smiled C.shouted( )30.A.nice B.bad C.wrong( )31.A.drum B.brush C.clock( )32.A.washing B.cooking C.painting( )33.A.dangerous B.boring C.special( )34.A.never B.always C.sometimes( )35.A.put out B.hand out C.find outV.阅读理解(20分)阅读下列短文，A篇为正(A)误(B)，B,C,D,篇为选择题。

2019-2020城阳初二上学期期末英语试卷(120分)听力部分略(20分)笔试部分(100分)I.单项选择：从每小题所给的四个选项中选出能够完成或回答这一小题的最佳答案。

(共10小题,每小题1分,共10分)21.- _______ article is really good.Who wrote it ?- _______ college student called Rick Miller.A.An;TheB.An;AC.The;TheD.The;A22. _______ in my class watched the baseball game last Saturday.We all went to the museum.A.SomeoneB.AnyoneC.EveryoneD.No one23.Kathy,you can go to the cinema _______ you come back before l0 o'clock tonight.A.whenB.unlessC.as long asD.until24.Jim,can you speak _______? Most of the students still can't hear you.A.quicklyB.loudlyC.more quicklyD.more loudly25.-Linda,what are you doing?-I'm practicing the violin.There _______ an art festival next week at our school.A.will beB.will haveC.wasD.has26._______ careful you are,_______ mistakes you'll make.A.The few;the littleB.The more;the fewerC.The much;the fewD.The fewer;the more27.-_______I go fishing,mum ?-Sure,but you _______ finish your homework first.A.Can;have toB.Can;mightC.Must;have toD.Must;might28.What _______ if it _______ tomorrow ?A.will happen;doesn't rainB.will happen;isn't rainingC.happens;will rainD.happens;is going to rain29.Although the pianist is over 80 years old, he is going to ______ a new hobby in the comingyear.A. make upB. take upC. grow upD. turn up30. He walked into the room quietly ______ making a sound.A. likeB. withC. throughD. withoutII.完形填空(每小题1分,共10分)Many people are interested in talking about life in the future. Some people __31___ that life in the future will be easier and more comfortable. But others believe that it will be worse and more difficult than now. As for me, I __32___ the idea of the first team.First, __33___ education, people will have better education. This is because of technology. E-books will replace common books, robots will replace teachers, and students will not have to go to school every day.They will study at home __34___ online teaching and will find learning more interesting.Second, people's __35___ will improve. Technology will also play a very important role. New medicine will help people get better quickly. Robots will help doctors and sometimes replace __36___. Also, doctors will be able to cure more diseases, so people will live __37___.Third, housing problems will __38___. People will build houses under the sea. Also, some people will live on the moon. Then everyone will have a place to live.Fourth, hunger will stop all over the world. People will grow crops everywhere __39___ on the top of buildings.Now what about you? What do you think life in the future will be __40___?Words bank: technology n. 科技cure more diseases 治愈更多疾病crops n.庄稼( )31.A.expect B.decide C.promise( )32.A.agree with B.care about C.write down.( )33.A.Such as B.Because of C.As for( )34.A.by B.through C.with( )35.A.talents B.luck C.health( )36.A.him C.them( )37.A.longer B.shorter C.healthier( )38.A.end B.start C.improve( )39.A.only B.even C.still( )40.A.about B.likeC.onIII.阅读理解阅读下列短文,从每小题所给的选项中,选出最佳答案或做出正误判断。

山东省青岛市城阳区第九中学【最新】八年级上学期第一次月考生物试题学校:___________姓名：___________班级：___________考号：___________一、单选题1．下列与鱼类适于水中生活无关的特征是A．体温不恒定B．身体呈梭形C．用鳃呼吸D．用鳍游泳2．蛔虫的消化器官不同于涡虫的特点是A．有口无肛门B．有嗉囊、有胃C．有口有肛门D．有小肠、大肠3．下列动物大都营寄生生活，都会危害寄主健康，其中属于扁形动物的是A．蛲虫B．血吸虫C．蛔虫D．水蛭.4．下列动物中属于昆虫的是（）A．B．C．D．5．关于蜥蜴的说法，正确的是A．能够在陆地上爬着走，故被称为爬行动物B．体温恒定，适应陆地生活C．能在干燥的陆地环境生殖和发育D．主要用肺呼吸，皮肤辅助呼吸6．鸟类扇动翅膀的动力主要来自于A．两翼肌肉B．胸肌C．背部肌肉D．腹肌7．下列关于软体动物的说法，不正确的是A．蛤蜊可以用足缓慢的运动B．扇贝的贝壳是由外套膜分泌的物质形成的C．软体动物的身体都比较柔软，D．鲍鱼的呼吸器官是气管8．人类的任何一个动作都是由两组肌肉相互配合完成的．在100米跑的过程中，大腿前面和后面的两组肌肉的活动情况是（）A．都持续收缩B．都持续舒张C．先同时收缩再同时舒张，交替进行D．一组收缩一组舒张，交替进行9．蜜蜂群体中有蜂王，个体之间有分工合作，无等级现象。

这说明蜜蜂具有（）A．取食行为B．社会行为C．繁殖行为D．迁徙行为10．下列说法不正确的是A．鱼的口和鳃盖后缘不停地交替张合，这是鱼在呼吸B．水螅的食物残渣由口排出C．节肢动物的足和触角分节D．软体动物都有贝壳11．下列对青蛙的特点描述中，正确的是A．青蛙既能生活在水中，又能生活在陆地上，所以它是两栖动物B．青蛙有肺和四肢，能够在陆地上生活，所以它是真正的陆生脊椎动物C．青蛙的肺结构简单、不发达，需要靠湿润的皮肤辅助呼吸D．青蛙能捕捉许多种农田害虫，所以青蛙是益虫12．小秃鹫在成长的过程中,学会了将动物的大骨骼抓到空中,扔在岩石上摔碎,便于吞食。

城阳九中2019-2020第一学期期末模拟题八 年 级 物 理 试 题（本试题满分：100分，考试时间：45分钟）卷（Ⅰ） 现象·实验·结构·方法一、不定项选择题（本题满分18分）：每小题中至少有一个选项是正确的，每小题全选对得3分，漏选得1分，错选或不选得0分）。

（ ）1. 关于光现象，下列说法中不正确的是： A.平面镜成像是光的反射的结果B.日食、月食的形成都是光沿直线传播的结果C.平静的水面映出岸上景物的像是光的折射的结果D.看到水中鱼的位置比实际的浅是光的折射的结果（ ）2. 如图所示是A 、B 、C 3种物质的所量m 与体积V 的关系 图线，下列密度关系正确的是：A.同种物质的密度与质量成正比，与体积成反比B.图中3种物质的密度关系是ρA >ρB >ρCC.图中ρC <ρ水D.同种物质的质量与体积成正比物质 酒精 水银 铝 铁 铜 冰 水 密度/(g/cm 3)0.813.62.77.98.90.91.0A ．边长比为2：1的正方体铝块、铁块，质量比是54：79B ．同样的烧杯，装质量相同的酒精和水，水的液面高C ．体积相同的铜块和铝块，质量大的是铜D ． 相同的烧杯都装有水，再放入质量相同的铜、铁、铝块后液面相同，原先水面高的是装铜的烧杯 （ ）4．如图一束光由空气斜射入玻璃中，已知入射光线与玻璃面夹角为50°，反射光线与入射光线垂直，下列说法中正确的是： A ．反射角是40°B ．反射角是40°C ．反射光线与入射光线垂直D ．折射光线与入射光线间的夹角是160°密 封 线学校___________________ 班级_______________ 姓名_________________（）5. 物体到凸透镜的距离u=8cm时，在透镜中看到正立的像，当物体到透镜的距离u=10cm时，在光屏上看到倒立的像.下列关于成像性质的判断，不正确的是：A.u=5cm时，成倒立、放大的像B.u=9cm时，成倒立、缩小的像C.u=15cm时，成正立、放大的像D.u=20cm时，成倒立、缩小的像（）6. 在探究平面镜成像的实验中，下列说法正确的是（）A.将蜡烛远离玻璃板，则它成的像会变小B.用两支等大的蜡烛是为了探究像与物的大小关系C.把蜡烛的位置和它的像的位置连起来，则连线与镜面垂直D.当点燃的墙烛靠近玻璃板时，它的像会变大卷（Ⅱ）实验·应用·推理·探究专题一：探究平面镜成像规律（本专题满分19分）1.回顾探究实验一器材白纸板、火柴 1 、2 、 3装置图步骤①把—支 4 (选填“点燃”或“未点燃”）的蜡烛竖立放在玻璃板的前面，可以看到它在玻璃板后面的像。

2019-2020学年城阳区八年级（上）期末物理试卷(考试时间：90分钟满分：100分)真情提示：亲爱的同学，欢迎你参加本次考试，祝你答题成功！说明：本试卷分两卷。

第Ⅰ卷共两道大题，13个小题；第Ⅱ卷共12个小题。

所有题目均在答题卡上作答，在试卷上作答无效。

第Ⅰ卷（本卷满分30分）一．单项选择题（本题满分18分，共有9道小题，每小题2分）；每小题给出的四个选项中，只有一项符合题目要求。

1.下列关于声的说法中,一错误的是:（）A.声音是由物体振动产生的B.声音在真空中传播得最快C.声音是以声波的形式传播D.声如洪钟是指声音的响度2.下列作图中,不正确的是:( )3.周末阳光明媚,小雨和妈妈一同来到世界公园湖边散步,看到湖中柳影摇曳,鱼儿戏水。

下列说法正确的是:（）A.看到的柳影是光的反射形成的实像B.看到的柳影是光的折射形成的虚像C.看到的鱼儿是光的折射形成的虚像D.看到的鱼儿是光的反射形成的虚像4.下列现象中由于光的直线传播而形成的是:（）A.雨后天空出现彩虹小B.物体在阳光下有影子凸C.玻璃幕墙造成光污染式高D.罕见的海市蜃楼现象5.下列直线运动图象中,能表示物体做匀速直线运动的是:（）6.下列几种估测比较符合实际情况的是:( )A.人正常步行的速度约5mB.物理课本的质量约0.2kgC.洗澡水的温度大约是90℃D.中学生的质量约500kg7.甲、乙两物体做匀速直线运动的速度之比为4:3,物体通过的路程之比为3:2;则甲、乙物体运动时间之比为:( )A.2:1B.1:2C.9:8D.3:18.如图所示是一些常用的测量仪器,其中使用方法正确的是:( )9.中国古诗词中蕴含了丰富的物理知识,下列说法正确的是:( )A.“月落乌啼霜满天”霜的形成是凝华现象B.“雾里山疑失雷鸣雨未体”的形成是汽化现象C.“风雨送春归,飞雪迎春到”雪的形成是升华现象D.“可怜九月初三夜,露似珍珠月似弓”的形成是熔化现象二、不定项选择题(本题满分12分,共4个小题。

1 / 8城阳九中2019-2020第一学期期中检测八 年 级 物 理 试 题 （本试题满分：100分，考试时间：90分钟）卷（Ⅰ） 现象·实验·结构·方法（本卷满分30分）一、单项选择题（本题满分18分，共9个小题，每小题2分）：下列各小题的四个选项中只有一个是正确的，请选出并将答题卡的对应项涂黑。

（ ）1．下列关于物态变化现象的说法中，错误的是：A ．积雪融化是熔化现象B ．冰花的形成是凝华现象C ．冰棒冒“白气”是汽化现象D ．露的形成是液化现象（ ）2．某晶体的熔点是80℃，那么80℃的这种物体处于什么状态 A ．固态 B ．液态 C ．固液共存 D ．以上均有可能 （ ）3．下列关于声现象的说法中，错误的是： A ．15℃时空气中的声速是340 m/s B ．声音在固体中比在空气中传播得慢 C ．声音的传播需要介质，真空不能传声D ．喇叭发音时，放在纸盆上的纸屑上下跳动，说明振动发声（ ）4．小明在家中打开冰箱，看到了一些现象，则关于这些现象的描述错误的是： A ．冷冻室内的鱼变得硬梆梆的，是由于鱼身体中的水凝固造成的 B ．冷冻室的内壁上附着一层霜，是由于水蒸气凝华产生的C ．冷藏室里面的蔬菜变得干瘪了，是由于水蒸发成水蒸气的缘故D ．从冷藏室拿出的易拉罐会“出汗”，是由于冰发生熔化的缘故 （ ）5．下列图像中能正确反映晶体凝固的图像是：（ ）6．甲乙两物体做匀速直线运动，两者的时间之比为2:1，通过的路程之比为4:3，则甲乙速度之比为：A ．2:3B ．3:2C ．2:9D ．9:2 （ ）7．下列说法中错误的是：A ．使用刻度尺测长度，读数时，视线应与尺面垂直B ．使用刻度尺测长度时，刻度尺要沿着所测长度C ．使用温度计测址液体温度读数时，视线应与温度计液柱上表面相平D ．使用温度计测量液体温度读数时，应将温度计从液体中取出，以便读数 （ ）8．下列关于物体运动和静止的说法中，正确的是： A ．参照物必须选静止的物体温度A ．B ．C ．D ． 密 封 线学校___________________ 班级_______________ 姓名_________________ 考号__________________2 / 8B ．研究物体运动时可以不选择参照物C ．参照物选取的不同，物体的运动情况可能不同D ．我们说地球是运动的，选择的参照物一定是地球上静止的物体 （ ）9．下列关于科学方法的说法，错误的是：A ．将速度定义的文字表述变换成公式，运用的是等价变换法B ．找出自制温度计的不足之处并加以改进，运用的是缺点列举法C ．将瓶塞上插入细玻璃管来显示瓶内液体的变化，运用的是放大法D ．通过利用路程和时间的测量组合起来测量物体的速度，运用了模型法二、不定项选择题（本题满分12分，共4个小题）：每小题中至少有一个选项是正确的，请选出并将答题卡的对应项涂黑（每小题全选对得3分，漏选得1分，错选或不选得0分）。

2019-2020学年青岛市第九中学高三英语上学期期中考试试题及答案第一部分阅读（共两节，满分40分）第一节（共15小题；每小题2分，满分30分）阅读下列短文，从每题所给的A、B、C、D四个选项中选出最佳选项ALocated besideLake Geneva, the Olympic Museum houses more than 10,000 artificial objects and hours of interactive contents highlighting some of the best moments during the Olympics. Here are some of the museum’s most moving moments.The Olympic ParkThe journey through the Olympic Museum begins in the Olympic Park, an 8,000-square-meter outdoor area in front of the museum overlooking Lake Geneva and theAlps. The park contains artwork and sculptures that show respect to the world of sport.The first Olympic SymbolThe “Olympic Rings” flag was designed by Coubertin in 1913. The rings represent the five continents that participate in the Olympics: Africa, Asia,America,AustraliaandEurope. The six color1 s include at least one color1 that is represented on the flag of every country.The StadiumsThe stadiums that host the Olympic Games are as much of a celebration of design as the games are a celebration of sportsmanship. Guests can explore plans and models of Olympic stadiums’ past and present, including one of the games’ most attractive stadiums, the Bird’s Nest from Beijing 2008 Olympics.The Olympic MedalsHave you ever wondered what an Olympic medal looks like? The Olympic Museum has a room that houses every bronze, silver, and gold medal from every Olympic Games dating back to the first modern Olympics of 1896. Each medal design is a unique representation of the year and location in which the games were held.1.Which moment do you see first when exploring the Olympic Museum?A.The Olympic Park.B.The first Olympic Symbol.C.The Stadiums.D.The Olympic Medals.2.What can you do in the section of The Stadiums?A.Celebrate the glory of a sportsman.B.Meet the designers of the stadiums.C.Explore the future stadiums.D.Enjoy the model of the Bird’s Nest.3.In which column of a newspaper may this text appear?A.Entertainment.B.Science.C.Travel.D.Business.BCuckoos don’t bother building their own nests—they just lay eggs that perfectly imitate those of other birds and take over their nests. But other birds are wishing up, evolving some seriously impressive tricks to spot the cuckoo eggs.Cuckoos are often know asparasites, meaning that they hide their eggs in the nest of other species. To avoid detection, the cuckoos have evolved so that eggs seem reproduction of those of their preferred targets. If the host bird doesn’t notice the strange egg in its nest, the little cuckoo will actually take the entire nest for itself after it comes out, taking the other eggs on its back and dropping them out of the nest.To avoid this unpleasant fate for their young, the other birds have evolved a few smart ways to spot the fakes, which we’re only now beginning to fully understand. One of the most amazing finds is that birds have an extra colour-sensitive cell in their eyes, which makes them far more sensitive to ultraviolet wavelengths and allows them to see a far greater range of colours than humans can. This allows cautious birds to detect a fake egg which might be exactly the same to our eyes.Fascinatingly, we’re actually able to observe different bird species at very different points in their evolutionary war with the cuckoos. For instance, some cuckoos lay their eggs in the nests of the redstarts. The blue eggs these cuckoos lay are practically alike to those of the redstarts, and yet they are still sometimes rejected. Compare that with cuckoos who target dunnocks. While those birds lay perfectly blue eggs, their cuckoo invaders just lay white eggs with brown irregular shaped spots. And yet dunnocks barely ever seem to notice the obvious trick.Biologists suspect these more easily fooled species like the dunnocks are on the same evolutionary path as the redstarts, but they have a long way to go until they evolve the same levels of suspicion. What’s remarkable is that the dunnocks fakes are so bad and the redstart ones so good, and yet cuckoos are still more successful with the former than the latter.It speaks to just how thoroughly a species’ behavior can be changed by the pressures of natural selection, or it might just be a bit of strategic cooperation on the part of the dunnocks. Biologists have suggested that these birds are willing to tolerate a parasite every so often because they don’t want to risk accidentally getting rid of one of their own eggs.4. This passage can be most likely found in a ________.A. science surveyB. nature magazineC. zoo advertisementD. travel journal5. What does the underlined word “parasite” in paragraph 2 most probably refer to?A. Animals that work together to raise young.B Small harmful animals such as worms or mice.C. Animals that can adapt to changing environments.D. Animals which live on or inside other host animals.6. Which of the following is TRUE about the dunnock according to the passage?A. It is colour-blind and therefore cannot identify foreign eggs in the nest.B. It can easily remove cuckoo eggs from the nest because fakes are so bad.C. It is a host bird that is more likely to raise a cuckoo chick than the redstart.D. It is unable to evolve and hence accepts cuckoo eggs that appear in the nest.7. Which of the following can be inferred from the passage?A. Dunnocks may eventually learn to recognise foreign eggs.B. Redstarts seem to be less suspicious compared to dunnocks.C. Cuckoo birds are good at taking responsibility for their own young.D. It is very easy for cuckoos to imitate the colouring of the dunnock’s egg.COnce a rich and clever boy had practically everything a boy could want, so he was not interested in most toys. But he couldn't get a very old mirror, and heconvinced his parents to buy it from mysterious（神秘的）old man. When the mirror arrived home, the boy went to see his reflection in it. His face looked very sad indeed. He tried smiling and making funny faces, but his reflection continued with its sad expression. "What a terrible mirror! It's the first time I've seen a mirror that didn't work properly!" the boy jumped violently.That same afternoon he went into the street to play and bought a few toys, but on his way to the park he saw a little girl who was crying her heart out. The girl was crying so much and looked so lonely that the rich boy went over to help her and to see what had happened. The little girl told him that she had lost her parents.Together the two set off in search of the parents. As the little girl wouldn't stop crying, the boy spent his money buying her sweets to cheer her up. Finally, after much walking, they found her parents who were much worried and were looking for her everywhere.The rich boy said goodbye to them. As it was getting late, he decided to head for home, without being able to play. At home, he went to his room, and noticed a shining light in the corner, the same corner he had left the mirror in. Seeing this, he went over to the mirror, and realised that the light was coming from his own body, so radiant（闪亮的）with happiness he had become.And so he understood the mystery of that mirror, the only mirror which could faithfully reflect the true joy of its owner. He realised it was true. He felt very happy at having helped that little girl. And since then, each morning when he looked in that mirror and failed to see a special shine, he knew what he had to do to bring it back.8. How did the boy feel when he first looked into the mirror?A. Embarrassed.B. Angry.C. Worried.D. Delighted.9. Why was the little girl crying so hard?A. She couldn't find her parents.B. She couldn't get the mysterious mirror.C. Her parents couldn't buy toys for her.D. The boy refused to give his toys to her.10. What could the boy see in the mirror after he went back from the park?A. A shining toy.B. A broken mirror.C. His happy face.D. The lovely girl.11. What is the purpose of this text?A. To tell us a horrible story.B. To introduce to us a strange mirror.C. To warn us not to be selfish.D. To encourage us to help others.DA PhD student inMichigandefended her paper while wearing a skirt madeof rejection letters she received while studying. 29-year-old Caitlin Kirby printed out 17 of her rejection letters — from scholarships, academic journals, and conferences — then folded each one into a fan. She connected them in rows, and by the end she designed the item into a skirt and wore it.She said that the idea behind her unique clothing item came out of a desire to normalize rejection and take pride in overcoming it. "The whole process of revisiting those old letters and making that skirt sort of reminded me that you have to apply to a lot of things to succeed," she said. "A natural part of the process is to get rejected along the way."Caitlin's adviser, Julie Libarkin, a professor of earth and environmental science atMichiganStateUniversity, also encourages the acceptance of failure in her students. Libarkin believes it's important for students to get into habit of applying for things, and to get used to the feeling of rejection, so she encourages them to chase after anyopportunity that comes their way. If a student doesn't get the grant or the spot in the academic journal, that's okay. They'll still have learned something in the process.As for Caitlin? Her rejections over the years have led to great things: Since her doctorate, she's won a scholarship to do further research on urban agriculture inGermany.Currently, she's a post-doctoral researcher at the University of Nebraska-Lincoln. As for what the future holds? "I'm prepared to receive a few more rejection letters along the way," she joked heartily, "Maybe I'll make a longer skirt."12. What can we learn about Caitlin Kirby's rejection letters?A. She received 17 rejections in total.B. 29 of her rejections were from journals.C. The rejections were connected into a fan.D. She made some rejection letters into a skirt.13. What is Julie Libarkin's attitude towards Caitlin's action?A. Favorable.B. Ambiguous.C. Skeptical.D. Opposed.14. Which of the following words can best describe Catlin?A. Creative and considerate.B. Caring and determined.C. Optimistic and humorous.D. Generous and intelligent.15. Which of the following may Caitlin agree with?A. Hard work pays off.B. Education is the entrance to success.C. Self-respect earns more respect.D. One needs to normalize failures.第二节（共5小题；每小题2分，满分10分）阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。

八年级上册九月份检测题（2）姓名：__________班级：__________考号：__________一、选择题（本大题共12小题，每小题4分，共48分。

）1.以下列各组线段为边，能组成三角形的是()．A．2 cm,3 cm,5 cm B．5 cm,6 cm,10 cmC．1 cm,1 cm,3 cm D．3 cm,4 cm,9 cm2.下列说法错误的是()．A．锐角三角形的三条高线、三条中线、三条角平分线分别交于一点B．钝角三角形有两条高线在三角形外部C．直角三角形只有一条高线D．任意三角形都有三条高线、三条中线、三条角平分线3.如图，将一副三角板叠放在一起，使直角的顶点重合于O，则∠AOC+∠DOB=（）A．90 º B．120 ºC．160 ºD．180 º4.如图，在△ABC中，D，E分别为BC上两点，且BD＝DE＝EC，则图中面积相等的三角形有()对．A．4 B．5 C．6 D．75.从n边形的一个顶点作对角线，把这个n边形分成三角形的个数是（）A．n个B．（n-1）个C．(n-2)个D．(n-3)个6.三角形一个外角小于与它相邻的内角，这个三角形（）A．是钝角三角形 B．是锐角三角形C．是直角三角形D．属于哪一类不能确定。

7.已知△ABC中，∠A．∠B、∠C三个角的比例如下，其中能说明△ABC是直角三角形的是（）A．2：3：4 B．1：2：3 C．4：3：5 D．1：2：28.四边形没有稳定性，当四边形形状改变时，发生变化的是()．A．四边形的边长 B．四边形的周长C．四边形的某些角的大小 D．四边形的内角和9.如图，在四边形ABCD中，对角线AB=AD，CB=CD，若连接AC、BD相交于点O，则图中全等三角形共有（）A．1对B．2对C．3对D．4对10.不能用尺规作出唯一三角形的是（）A．已知两角和夹边B．已知两边和夹角C．已知两角和其中一角的对边D．已知两边和其中一边的对角11.如图所示，则∠A+∠B+∠C+∠D+∠E+∠F的度数是（）A．180°B．270°C．360°D．540°12.两组邻边分别相等的四边形叫做“筝形”，如图，四边形ABCD是一个筝形，其中AD=CD，AB=CB，詹姆斯在探究筝形的性质时，得到如下结论：①AC⊥BD；②AO=CO=AC；③△ABD≌△CBD，其中正确的结论有（）A．0个B．1个C．2个D．3个二、填空题（本大题共6小题，每小题4分，共24分）13.如图，已知AB=AD，要使△ABC≌△ADC，那么应添加的一个条件是．14.如图，已知△ABC ≌△AFE ，若∠ACB=65°，则∠EAC 等于__________度．15.若直角三角形的一个锐角为50°，则另一个锐角的度数是 度．16.如图，在正方形ABCDE 中，以BC 为一边，在形内作等边△BCF ，连结AF ．则∠AFB 的大小是__________度．17.如图，△ABC 三边的中线AD ，BE ，CF 的公共点G ，若，则图中阴影部分面积是 .18.如图△ABC 中，∠C=90°，AD 平分∠BAC ，DE ⊥AB 于E ，给出下列结论：①DC=DE ；②DA 平分∠CDE ；③DE 平分∠ADB ；④BE+AC=AB ；⑤∠BAC=∠BDE ．其中正确的是______ （写序号）三 、解答题（本大题共8小题，19-20每题7分，21-24每题10分，25-26每题12分，共78分）19.如图所示，直线AD 和BC 相交于点O ，AB ∥CD ，∠AOC ＝95°，∠B ＝50°，求∠A 和∠D.12ABC S△20.已知：如图，在△ABC中，∠ACB=90°，AC=BC，BE⊥CE于点E，AD⊥CE于点D．求证：BE=CD．21，小明在求一个凸n边形的内角和时，没有把其中一个角的度数算进去，求得的内角和为2570°（1）求这个多边形的边数；（2）没有算进去的那个内角为多少度？,22.已知，如图，△ABC和△ECD都是等腰直角三角形，∠ACD=∠DCE=90°，D为AB边上一点．求证：BD=AE．23.如图，以四边形ABCD各顶点及各边延长线上的点构成△AEF、△BGH、△CMN、△DPQ，求∠E+∠F+∠G+∠H+∠M+∠N+∠P+∠Q的度数．24.如图，点C，E，F，B在同一直线上，点A，D在BC异侧，AB∥CD，AE=DF，∠A=∠D.（1）求证：AB=CD.（2）若AB=CF，∠B=30°，求∠Ｄ的度数.25.已知在△ABC中，∠ABC=∠ACB，D为BC边上一点，E为直线AC上一点且∠ADE=∠AED．（1）求证：∠BAD=2∠CDE；（2）若D在BC的反向延长线上，其他条件不变，（1）中的结论是否成立？26.已知：在△ABC中，AC=BC，∠ACB=90°，点D是AB的中点，点E是AB边上一点．（1）直线BF垂直于直线CE于点F，交CD于点G（如图1），求证：AE=CG；（2）直线AH垂直于直线CE，垂足为点H，交CD的延长线于点M（如图2），找出图中与BE相等的线段，并证明．八年级上册九月份学月检测题（2）答案解析一、选择题1.【考点】三角形三边关系．【分析】利用三角形三边关系解答．【解答】解：A．2+3=5，不能组成三角形，故此选项错误；B、5+6＞10，能组成三角形，故此选项正确；C、1+1＜3，不能组成三角形，故此选项错误；D、3+4＜9，不能组成三角形，故此选项错误；故选：B．2.【考点】三角形的高线、中线、角平分线的性质【分析】根据三角形的高线、中线、角平分线的性质分析各个选项【解答】A．正确，任意三角形的三条高线、三条中线、三条角平分线分别交于一点；B、正确，钝角三角形有两条高线在三角形的外部；C、错误，直角三角形也有三条高线；D、正确．故选C．3.【考点】角度的计算【分析】因为本题中∠AOC始终在变化，因此可以采用“设而不求”的解题技巧进行求解．【解答】解：设∠AOD=a，∠AOC=90°+a，∠BOD=90°-a，所以∠AOC+∠BOD=90°+a+90°-a=180°．故选D．4.考点：三角形的周长和面积分析：等底同高的三角形的面积是相等的解答：解：∵BD＝DE＝EC∴△ABD，△ADE，△AEC三个三角形的面积相等，有3对∵BD+DE=DE+EC∴△ABE与△ACD的面积也相等，有1对，∴共有4对三角形面积相等，故选A．点评：弄清三角形的面积公式是关键5.【考点】一个顶点引出的对角线与边的关系【分析】可根据n边形从一个顶点引出的对角线与边的关系：n-3，可分成（n-2）个三角形直接判断．【解答】解：从n边形的一个顶点作对角线，把这个n边形分成三角形的个数是（n-2）．故选C．【点评】多边形有n条边，则经过多边形的一个顶点的所有对角线有（n-3）条，经过多边形的一个顶点的所有对角线把多边形分成（n-2）个三角形．6.【考点】三角形的外角定义【分析】利用三角形的外角定义解答【解答】因为三角形的一个外角与它相邻的内角和为180°，而题中说这个外角小于它相邻的内角，所以可知与它相邻的这个内角是一个大于90°的角即钝角，则这个三角形就是一个钝角三角形,故选A7.【考点】三角形的内角和定理．【分析】利用三角形的内角和定理进行解答【解答】解：选项A，当∠A．∠B、∠C三个角之比为2：3：4，根据三角形的内角和定理可求得∠A=40°，∠B=60°，∠C=80°；选项B，当∠A．∠B、∠C三个角之比为1：2：3，根据三角形的内角和定理可求得∠A=30°，∠B=60°，∠C=90°；选项C，当∠A．∠B、∠C三个角之比为4：3：5，根据三角形的内角和定理可求得∠A=60°，∠B=45°，∠C=75°；选项D，当∠A．∠B、∠C三个角之比为1：2：2，根据三角形的内角和定理可求得∠A=36°，∠B=72°，∠C=72°．四个选项能说明△ABC是直角三角形只有选项B，故答案选B．8.【考点】四边形具有不稳定性，【分析】四边形形状改变时，只是改变了四个角的大小，内角和、边长、周长都不改变【解答】解：当四边形形状改变时，发生变化的是四边形的内角的度数，故选：C．9.考点：全等三角形的判定。

2024届山东省青岛市城阳区第九中学物理八上期末联考模拟试题注意事项1．考试结束后，请将本试卷和答题卡一并交回．2．答题前，请务必将自己的姓名、准考证号用0．5毫米黑色墨水的签字笔填写在试卷及答题卡的规定位置．3．请认真核对监考员在答题卡上所粘贴的条形码上的姓名、准考证号与本人是否相符．4．作答选择题，必须用2B铅笔将答题卡上对应选项的方框涂满、涂黑；如需改动，请用橡皮擦干净后，再选涂其他答案．作答非选择题，必须用05毫米黑色墨水的签字笔在答题卡上的指定位置作答，在其他位置作答一律无效．5．如需作图，须用2B铅笔绘、写清楚，线条、符号等须加黑、加粗．一、单选题1．观察如图所示中的烟和小旗，关于甲、乙两车相对于房子的运动情况，下列说法正确的是（）A．甲、乙两车一定向左运动B．甲、乙两车一定向右运动C．甲车可能运动，乙车向右运动D．甲车可能静止，乙车向左运动2．“复兴号”动车组列车从北京南站行驶到天津站全程120km，所用时间是30min；陆地上的猎豹最快每秒可跑40m；旗鱼是海洋中游速最快的鱼类之一，它的游速可达118km/h，比较它们的速度大小（）A．猎豹的速度最大B．“复兴号”动车组列车的速度最大C．旗鱼的速度最大D．三者速度一样大3．下列有关声现象的说法中错误的是（）A．在《爸爸去哪儿》节目中，孩子们很容易辨别出爸爸发出的声音，这主要是爸爸声音的音调不同B．蒙上双眼仅凭声音也能大致确定声源的方位是由于“双耳效应”C．文明城市要求植树种草，树木和花草既能美化城市也具有减弱噪声的作用D．古代行军宿营时，士兵枕着牛皮制的箭筒睡在地上，能及早听到敌人的马蹄声，是因为大地传声比空气快4．如图所示的四个物态变化的实例中，属于液化的是（）A．初春，湖面上冰化成“水”B．盛夏，草叶上形成“露珠”C．深秋，枫叶上形成“霜”D．严冬，树枝上形成“雾凇”5．一冰块熔化成水后，一定不变的物理量是（）A．温度B．质量C．体积D．密度6．关于机械运动的说法中，正确的是（）A．宇宙间一切物体都是运动的B．只有静止的物体才能被选作参照物C．运动快慢不变的物体，一定在做匀速直线运动D．对同一物体，选用不同的参照物，其运动情况一定不同7．如图是一辆小车做直线运动的路程—时间图像，由图像可知（）A．在0~1s内小车做匀速直线运动B．在1s~2s内小车做加速直线运动C．在0~3s内小车移动的距离为2m D．在0~3s内小车移动的距离为1m8．在我国北方寒冷的冬季，在室外用潮湿的手去触摸金属管，手指皮肤会被“粘”在金属管上，这时手上的水发生了某种物态变化，与其对应的图像是（）A．B．C．D．二、多选题9．下列关于光学知识的叙述正确的是A．物体离平面镜越近，所成的像越大B．光的色散就是白光被分解成红、橙、黄、绿、蓝、靛、紫七色光的现象C．电视机的遥控器可以发出不同的红外线，来实现电视机的遥控D．我们能从各个方向看见电影银幕上的画面，是因为光在银幕上发生了镜面反射10．定值电阻R两端的电压为U，通过它的电流为I，根据欧姆定律就I、U、R，三者之间的关系，以下图像描述正确的是（）A．B．C．D．三、填空题11．光线垂直入射到平面镜上时，反射角为______________度。

城阳九中2019-2020第一学期（月考）八年级物理检测试卷试卷总分50分，考试时间45 分钟。

温馨提示:亲爱的同学,欢迎你参加本次考试,祝你答题成功!第一部分现象.实验.结构.方法(16分)一．单项选择题。

(共5 小题，每小题2分，共10分)1.用刻度尺测物体的长度时，下列要求错误的是A.测量时，刻度尺沿着所测长度放好B.测量时，必须从刻度尺的零刻度线处量起C.读数时，视线应与尺面垂直D.记录测量结果时，必须在数字后面写上单位2.在观光电梯中，乘客在电梯竖直上下的过程中可以欣赏美丽的景色，下列说法正确是A.以电梯内的某一乘客为参照物，其他乘客是运动的B.以电梯为参照物，所有乘客都是运动的C.以地面上的树为参照物，乘客是运动的D.以路上行驶的汽车为参照物，乘客是静止的3.下列关于速度的说法错误的是A.速度等于运动物体在单位时间内通过的路程B.速度是表示物体运动快慢的物理量C.通过相等的路程时，所用时间短的物体速度较大D.速度是时间与路程之比4.下列图像中，表示物体做匀速直线运动的是5.甲、乙两物体都在做匀速直线运动，其速度之比为3: 4, 通过路程之比为2: 1,则甲、乙两物体所用的时间之比为A.1: 6B.8: 3C.3: 2D.5: 4二．不定项选择题。

(共2小题，每小题3分，共6分)每小题中至少有一个选项是正确的，漏选得1分，错选、多选不得分。

6.下列研究方法的说法中，正确的有A.将机械运动分为直线运动和曲线运动，运用了分类法B.根据速度的定义写出速度的计算式，运用了转换法C.利用刻度尺和秒表测出平均速度的实验中，运用了组合法D.通过控制路程相同，比较时间来得出速度的快慢，运用了等价变换法7.某学习小组对一辆在平直公路上做直线运动的小车进行观测研究。

他们记录了小车在某段时间内通过的路程与所用的时间，并根据记录的数据绘制了路程与时间的关系图像，如图所示。

根据图象可以做出正确的判断是:A.0~5s内，小车的平均速度是0. 2m/sB. 2s-5s内，小车处于匀速直线运动C. 5s~7s内，小车处于匀速直线运动状态D.小车在0 ~2s内的速度大于5s~7s内的速度第二部分实验.探究.综合.计算(34分)专题一:机械运动(共17空，每空1分; 2. (2)小计算3分。

2019-2020学年度第一学期九年级单元检测物理试题(本试题满分: 80分，考试时间: 60 分钟)一．单项选择题(本题满分18分，共9个小题，每小题2分):下列各小题的四个选项中只有一个是正确的，请选出并将答题卡的对应项涂黑。

1.下列现象中，不能说明分子不停地做无规则运动的是A.红墨水滴入水中，整杯水都变红B. 香水擦在皮肤上，能闻到香味.C.用显微镜观察水滴，有细菌在活动D.墙角堆煤久了，有擦不掉的黑色痕迹2.下面的例子中，属于内能转化成机械能的是A.钻木取火B.陨石的降落C.用弹弓把石子射出去D.爆炸后的爆竹腾空而起3.如上图所示，有一个小电动机模型和一盏电灯，当开关S闭合后，则A.电动机转动，灯不亮B.电动机转动，灯也亮C.电动机不转动，灯亮D.电动机不转，灯也不亮4.有关扩散现象下列说法正确的是:A.扩散现象使我们直接观察到物体内分子的运动B.扩散现象只能间接的反映物体内分子的运动C.只有液体和气体才有扩散现象D.扩散时一定是密度大的物质下沉，密度小的上升5.下列现象中，是通过做功的方法增大物体内能的是A.用热水袋取暖B.钻木取火C.蒸汽发电机发电D.暖瓶塞子弹开6.用一根与毛皮摩擦过的橡胶棒靠近一轻质小球，发现两者互相排斥，由此可判定A.小球一定带正电B.小球一定不带电C.小球一定带负电D.小球可能带负电，也可能不带电7、以下全部为绝缘体与导体说法正确的是A.绝缘体没有电子所以不能导电B.导体内的电荷都能够自由移动，所以导体能够导电C.导体能够导电，都是靠自由电子移动D.绝缘体不能导电，因为它几乎没有自由电荷8.下列运用科学方法的实例中，错误的是A.在研究做功和热传递改变物体内能时使用了等效法B.在引入比热容的概念时，将物质吸收热量的多少通过加热时间的长短来反映是转换法C.将固体分子比成上课的学生是放大法D.将改变物体内能的方法分为做功和热传递，是分类法9.请你想象一下，假如水的比热容变的比沙子比热容小，下列不会发生的是A.沿海地区的温差比内陆地区的温差大B.夏天洗海澡的时候踩在沙子上温度比海水里低C.在汽车中冷却水的冷却效果将会更好D.吸收相同的热量后，水温升高的温度将为变大二．不定项选择题(本题满分12分，共4个小题，每小题3分)下列各小题的四个选项中至少有一个是正确的，请选出并将答题卡对应项涂黑。