吉林省长春市普通高中2020届高三上学期质量监测(一)(解析版)
吉林省长春市普通高中2020届高三上学期质量监测(一) 可能用到的相对原子质量:H-1 N-14 一、选择题(本题共14小题,每小题只有一个符合题意的选项,每小题3分,共42分。) 1.化学与人类生产、生活密切相关,下列叙述中不正确...的是( )
A.用地沟油制取的生物柴油和从石油炼得的柴油都属于烃类物质 B.高铁“复兴号”车厢连接关键部位使用的增强聚四氟乙烯板属于高分子材料 C.“一带一路”是“丝绸之路经济带”和“21世纪海上丝绸之路”的简称,丝绸的主要成分是蛋白质,属于天然高分子化合物 D.中国天眼“FAST“,用到的碳化硅是一种新型的无机非金属材料 2.下列说法正确的是( ) A.在实验室用药匙取用粉末状或块状固体药品 B.pH试纸使用时不需要润湿,红色石蕊试纸检测氨气时也不需要润湿 C.蒸馏操作时,装置中的温度计的水银球应位于蒸馏烧瓶中的液体中部 D.分液时下层液体从分液漏斗下端管口放出,关闭活塞,换一个接收容器,上层液体从分液漏斗上端倒出 3.下列说法不正确...的是( )
A.氯气是一种重要的化工原料,广泛应用于自来水的消毒和农药的生产等方面 B.钠和钾的合金在常温下是液体,可用于快中子反应堆的热交换剂 C.用硅制造的光导纤维其有很强的导电能力,可用于制作光缆 D.化肥的生产、金属矿石的处理、金属材料的表面清洗等都可能用到硫酸 4.下列叙述正确的是( )
A.天然气主要成分的结构式: B.35Cl和37Cl互为同素异形体 C.漂白粉主要成分的化学式:Ca(ClO)2 D.苯的比例模型: 5.对于反应A(g)+3B(g)=2C(g)+2D(g),以下表示中,反应速率最快的是( ) A.v(A)=0.8 mol/(L·s) B.v(B)=0.4 mol/(L·s) C.v(C)=0.6 mol/(L·s) D.v(D)=1.8 mol/(L·min) 6.设NA表示阿伏加德罗常数的值,下列说法正确的是( ) A.标准状况下,11.2 L HF所含分子教为0.5NA B.2 mol NO与1 mol O2充分反应,产物的分子数小于2NA C.常温下,1 L 0.1 mol·L-1氯化铵溶液中加入氢氧化钠溶液至溶液为中性,则溶液含铵根离子数为0.1 NA D.已知白磷(P4)为正四面体结构,NA个P4与NA个甲烷所含共价键数目之比为1:1 7.关于下列各实验装置的叙述中,不正确...的是( )
A.装置①可用于实验室制取少量NH3或O2
B.装置②可用于实验室制备Cl2
C.装里③可用从右侧管处加水的方法检验气密性
D.装置④中若溴水褪色则证明石蜡油分解产生乙烯 8.四元轴烯t,苯乙烯b及立方烷c的结构简式如下,下列说法正确的是( )
A.b的同分异构体只有t和c两种 B.t和b能使酸性KMnO4溶液褪色而c不能 C.t、b、c的二氯代物均只有三种 D.b中所有原子-定不在同-个平面上 9.X、Y、Z、W为四种短周期主族元素,其中X、Z同族,Y、Z同周期,W是短周期主族元素中原子半径最大的,X原子最外层电子数是其电子层数的3倍,Y的最高正价与最低负价代数和为6。下列说法正确的是( ) A.Y元素的最高价氧化物的水化物化学式为H2YO4 B.它们形成的简单离子半径:X>W C.X、Z两种元素的气态氢化物稳定性:Z>X D.X与W形成的化合物中阴、阳离子个数比为1:1或1:2 10.由下列实验对应的现象推断出的结论正确的是( ) 选项 实验 现象 结论 A 将红热的炭放入浓硫酸中产生的气体通入澄清的石灰水 石灰水变浑浊 炭被氧化成CO2
B 将稀盐酸滴入Na2SiO3溶液中 溶液中出现凝胶 非金属性:Cl>Si
C CO2通入BaCl2溶液,然后滴入稀硝酸 有白色沉淀产生,加入稀硝酸后沉淀溶解 先产生BaCO3沉淀,后
BaCO3溶于硝酸 D 向某溶液中滴加KSCN溶液,溶液不交色,再滴加新制氯水 溶液显红色 原溶液中一定含有Fe
2+
11.用如图所示装置进行下述实验,下列说法正确的是( )
选项 R a b M n m中电极反应式 A 导线 Fe Cu H2SO4 CuSO4 Fe-3e-=Fe
3+
B 导线 Cu Fe HCl HCl 2H+-2e-=H
2↑
C 电源,右侧为正极 Cu C CuSO4 H2SO4 Cu-2e-=Cu
3+
D 电源,左侧为正极 C C NaCl NaCl 2Cl-2e-=Cl
2↑
12.下列离子方程式书写正确的是( ) A.小苏打治疗胃酸过多的反应:CO32-+2H+=CO2↑+H2O B.次氯酸钠溶液通入少通的CO2:2ClO-+CO2+H2O=2HClO+CO32- C.H218O2中加入H2SO4酸化的KMnO4:5H218O2+2MnO4-+6H+=518O2↑+2Mn2++8H2O D.过量SO2通入到Ba(NO3)2溶液中:3SO2+2NO3-+3Ba2++2H2O=3BaSO4↓+2NO+4H
+
13.如图是l mol金属镁和卤素反应的△H(单位:kJ· mol-1)示意图,反应物和生成物均为常温时的稳定状态,下列选项中不正确...的是( ) A.由图可知,MgF2(s)+Br2(l)=MgBr2(s)+F2(g)△H=+600kJ· mol-1 B.MgI2与Br2反应的△H<0 C.电解MgBr2制Mg是吸热反应 D.化合物的热稳定性顺序:MgI2>MgBr2>MgCl2>MgF2 14.固体粉末X中可能含有Fe、FeO、CuO、MnO2、KCl和K2CO3中的若干种。为确定该固体粉末的成分,某同学依次进行了以下实验: ①将X加入足量水中,得到不溶物Y和溶液Z ②取少量Y加入足量浓盐酸,加热,产生黄绿色气体,并有少量红色不溶物 ③用玻璃棒蘸取溶液Z滴于pH试纸上,试纸呈蓝色 ④向Z溶液中滴加AgNO3溶液,生成白色沉淀 分析以上实验现象,下列结论正确的是( ) A.X中一定不存在FeO B.Z溶液中-定含有K2CO3
C.不溶物Y中一定含有翻位认MnO2和CuO,而Fe与FeO中至少含有一种
D.向④中所生成的白色沉淀中滴加盐酸,若沉淀不完全溶解,则粉末X中含有KCl 二、必做题:(本题共3小题,共43分。) 15.(14分)酿酒和造醋是古代劳动人民的智慧结晶,白酒和醋也是日常生活中常见的有机物。
(1)上述以高粱为主要原料的酿醋工艺中,利用醋酸溶解性的是 (填选项)。 (2)写出乙酸在水溶液中的电离平衡常教的表达式 。 (3)已知25℃下,CH3COOH在水中电离的电离常数Ka=2×10-5,则25℃时CH5COONa水解平衡常数Kb= (填数值)。 (4)近年来,研究者利用乙酸开发出新工艺合成乙酸乙酯,使产品成本明显降低,其主要反应为:
CH2=CH2 (g)+CH3COOH(l)CH3COOC2H5(l) ①该反应属于有机反应类型中的 。 ②下列描述能说明乙烯与乙酸合成乙酸乙酯的反应已达化学平衡的是 (填选项)。 A.乙烯、乙酸、乙酸乙酯的浓度相同 B.酯化合成反应的速率与酯分解反应的速率相等 C.乙烯断开l mol碳碳双键的同时乙酸恰好消耗l mol D.体系中乙酸的百分含量一定 (5)下图为n(乙烯)与n(乙酸)物料比为1时,在不同压强下进行了乙酸乙酯的产率随温度变化的测定实验,在相同时间点的实验结果如图所示。回答下列问题:
①温度在60-80℃范围内,乙烯与乙酸酯化合成反应速率由大到小的顺序是 [用v(P1)、v(P2)、v(P3)分别表示不同压强下的反应速率]。 ②压强为P1 MPa、温度60℃时,若乙酸乙酯的产率为30%,则此时乙烯的转化率为 。 ③压强为P1 MPa、温度超过80℃时,乙酸乙酯产率下降的原因可能是 。 16.(15分)铝热反应是铝的一个重要性质,该性质用途十分广泛,不仅被用于焊接钢轨,而且还常被用于冶炼高熔点的金属如钒、铬、锰等。 (l)某校化学兴趣小组同学,取磁性氧化铁按教材中的实验装置(如图)进行铝热反应,现象很壮观。使用镁条和氯酸钾的目的是 。 (2)某同学取反应后的“铁块”和稀硝酸反应制备Fe(NO3)3溶液,其离子方程式为 ,溶液中可能含有Fe2+,其原因是 ; (3)可通过KClO溶液与Fe(NO3)3溶液的反应制备高铁酸钾(K2FeO4),如图所示是实验室模拟工业制备KClO溶液装置。已知氯气和热碱溶液反应生成氯化钾和氯酸钾和水
①盛装饱和食盐水的B装置作用为 ; ②反应时需将C装置置于冷水浴中,其原因为 ; (4)工业上用“间接碘量法”测定高铁酸钾的纯度:用碱性KI溶液溶解1.00g K2FeO4样品,调节pH使高铁酸根全部被还原成亚铁离子,再调节pH为3~4,用1.0 mol/L的Na2S2O3标准溶液作为滴定剂进行滴定(2Na2S2O3+I2=Na2S4O6+2NaI),淀粉作指示剂,装有Na2S2O3标准溶液的滴定管起始和终点读数如图所示:
①终点II的读数为 mL。 ②原样品中高铁酸钾的质量分数为 。[M(K2FeO4)=198g/mol] ③若在配制Na2S2O3标准溶液的过程中定容时俯视刻度线,则导致所测高铁酸钾的质量分数 (填“偏高”、“偏低”或“无影响”)。 17.(14分)双氧水(过氧化氢的水溶液)在工业生产和日常生活中应用广泛。 (1)双氧水常用于伤口消毒,这一过程利用了过氧化氢的 (填过氧化氮的化学性质)。 (2)火箭推进器中盛有强还原剂液态肼(N2H4)和强氧化剂液态过氧化氢。已知0.4 mol液态肼与足量的液态过氧化氢反应,生成氮气和水蒸气,并放出256.652kJ的热量。该反应的热化学方程式为 。 (3)双氧水能将碱性废水中的CN-转化成碳酸盐和一种对环境无污染的气体,CN-的电子式为 ,写出该反应的离子方程式 。 (4)下图是工业上制备过氧化氢最常见的方法,写出实际发生反应的总方程
吉林省长春市普通高中2020届高三质量监测(三)物理试卷含解析〖附15套高考模拟卷〗
吉林省长春市普通高中2020届高三质量监测(三)物理试卷一、单项选择题:本题共6小题,每小题4分,共24分。
在每小题给出的四个选项中,只有一项是符合题目要求的。
1、国务院批复,自2016年起将4月24日设立为“中国航天日”。
1970年4月24日我国首次成功发射的人造卫星东方红一号,目前仍然在椭圆轨道上运行,如图所示,其轨道近地点高度约为440km,远地点高度约为2060km;1984年4月8日成功发射的东方红二号卫星运行在赤道上空35786km的地球同步轨道上。
设东方红一号在近地点的加速度为a1,线速度为v1,环绕周期为T1,东方红二号的加速度为a2,线速度为v2,环绕周期为T2,固定在地球赤道上的物体随地球自转的加速度为a3,自转线速度为v3,自转周期为T3,则a1、a2、a3,v1、v2、v3,T1、T2、T3的大小关系为()A.T1>T2=T3B.a1>a2>a3C.a3>a1>a2D.v1>v3>v22、如图所示,轻质弹簧下端固定,上端与一质量为m的物块A连接,物块A经过P点时速度大小为v,方向竖直向下。
经过t秒物块A又回到P点。
速度大小为1v,方向竖直向上,则在时间t内()A.物块A受到弹簧力的冲量大小为2mvB.物块A受到合力的冲量大小为2mvC.弹簧弹力对物块A所做的功大小为2mvD.合力对物块A所做的功大小为2mv3、如图所示,沿x轴正方向传播的一列简谐波在某时刻的波形图为一正弦曲线,其波速为200m/s,则可推断正确的是()①图中质点b 的速度为负方向最大②从图示时刻开始,经过0.01s ,质点a 通过的路程为4m ,位移为零③若此波遇到另一列波并发生稳定的干涉现象,则该波所遇到的频率为50Hz④若发生明显衍射现象,该波所遇到的障碍物的尺寸一般不小于20mA .①③B .②③C .①④D .②④4、我国成功地发射了北斗三号组网卫星,如图为发射卫星的示意图。
吉林省长春市2020届高三普通高中质量监测(二)英语试题含答案
长春市普通高中2020届高三质量监测(二)英语本试卷分第I卷(选择题)和第II卷(非选择题)两部分。
考试结束后,将本试卷和答题卡一并交回。
第I卷注意事项:1.答第I卷前,考生务必将自己的姓名、准考证号填写在答题卡上。
2.选出每小题答案后,用铅笔把答题卡上对应题目的答案标号涂黑。
如需改动,用橡皮擦干净后,再选涂其他答案标号。
不能答在本试卷上,否则无效。
第二部分阅读理解(共2节,满分40分)第一节(共15小题;每小题2分,满分30分)阅读下面短文,从每题所给的A、B、C和D四个选项中,选出最佳选项。
ATop4Things To Do in Pigeon Forge and Gatlinburg TNThe Pigeon Forge and Gatlinburg areas of Tennessee are absolutely full of fun things to do and see.You are sure to have an amazing time.Dolly Parton’s StampedeOne of the most famous attractions in the Pigeon Forge and Gatlinburg areas,the Dolly Parton’s Stampede is a must-have attraction.This show features many special effects, horsemanship and a fun evening.Watch as you take in some of the best entertainment.Cheer on your favorite side.Then,top it all off with a delicious meal of roast chicken and tons of delicious sides.Ripley Aquarium(水族馆)of the SmokiesFor the animal lover in your family,you’ll definitely want to check out the Ripley’s Aquarium of the Smokies.This aquarium is one of the best attractions in Gatlinburg and features tons of beautiful animals for a fun and educational experience.Titanic MuseumVisit the Titanic in Pigeon Forge for a unique look into this tragic event.The Titanic Museum in the Great Smoky Mountains is the largest permanent museum.Upon arrival,you’ll be amazed by the giant reproduction of the ship.Here,guest will be able to explore a variety of1/12exhibits.Dollywood Theme ParkDollywood is a favorite among visitors of all ages because it provides tons of fun and different rides.There are lots of events during the year.Dolly Splash Country Water Park is sure to be a refreshing time during the summer months.Visit the park when it’s shining with Christmas lights and more.No matter when you visit,this park is sure to provide unforgettable fun during your Pigeon Forge getaway.21.Where are those who love animals likely to go?A.Dolly Parton’s Stampede.B.Ripley Aquarium of the Smokies.C.Titanic Museum.D.Dollywood Theme Park.22.Which place will make you feel refreshed during the hot months?A.Dolly Parton’s Stampede.B.Ripley Aquarium of the Smokies.C.Titanic Museum.D.Dollywood Theme Park.23.In which section of a magazine may this text appear?A.Science.B.Travel.C.Society.cation.BOur wedding was about to begin.My throat was tight and my cheeks got red,but I didn’t care.I was ready to marry David Sanchez.We’re a“nontraditional”couple:getting married not at a church but in a bookstore that supports a charity to fight H.I.V.and homelessness.“Kim!I could walk you down the aisle(走廊)if you like!”David’s father offered gently.“I’m OK.But I appreciate that,”I said with a smile.And I was reminded,again,of my dad’s absence.My father died of cancer six weeks ago.For the last two months,we tried to make him feel comfortable and loved as he departed from this world.He always told us that he didn’t like a funeral(葬礼)and insisted our wedding go forward as planned.But how could we honor him since the wedding would be the first time the family would gather after his death and some even didn’t know he was sick?During the ceremony,my dear friend Eva delivered a reading entitled“When Things Go Missing”by Kathryn Schulz.She paused and got everyone on the same page:“When we are2/12experiencing it,loss often feels like confusion in the usual order of things.In fact,the entire plan of the universe consists of losing,and life amounts to a reverse(逆向的)savings account in whichwe are eventually robbed of everything.”I felt the energy full of the room.Everyone was listening.By choosing to accept the pain,we knew what a wedding does to join two families and mark the next chapter for a couple.Loss became a compass that pointed us away from a fantasy and toward celebrating the difficult realities of life.After rings were exchanged,fried chicken was served,our friends offered so many funny and touching toasts,and finally David sang“Married”on father’s guitar.I felt joy filling all the holes in my soul.Celebrating my father’s life at our wedding made me grateful for all the time I had spent with him,because it all goes by so fast.24.Why did David's father offer to walk the author down the aisle?A.To relieve her tensionB.To welcome her to his family.C.To play the author's late father's role.D.To contribute something to the charity.25.What do we know about Kim at her wedding?A.She got a compass as a wedding gift.B.She enjoyed David's promise for their marriage.C.She received more sympathy from families and friends.D.She recalled the days spent with her father and understood life better.26.Why did Kim feel energy full of the room?A.Because she could keep from the pain.B.Because she knew everyone was listening.C.Because she got more courage for marriage and life.D.Because she could read a piece of Kathryn Schulz's works.27.What do we know about Kim and David's wedding ceremony?A.It was held at a church.B.It was a touching and happy one.C.Kim and David turned it into a funeral.D.There was no other activity expect reading.CThere were far fewer cars on the streets and crowds were not seen in the shopping malls in Central China's Wuhan on Jan24-the Eve of the Chinese New Year.The scene was quite3/12different from the occasion in the previous years because of the novel coronavirus,which had resulted in41deaths in China by the end of New Year’s Eve,mostly in Wuhan,according to the National Health Commission.Chen Li,a doctor in a Wuhan hospital,spent the Chinese Lunar New Year's Eve at home to quarantine herself for having had contact with infected patients,but luckily,she has no signs of symptoms for the time being.Chen's husband is at the forefront of the fight against the epidemic(流行病)."We haven't seen each other for over a week,"said Chen.On Saturday morning,she put on protective clothing again and returned to work.Wuhan is following Beijing's SARS treatment model in2003to build a makeshift hospital with1,000beds for receiving infected patients.It will be completed and put into use prior to Feb3, less than10days away."It's going to be another all-nighter.We need to speed up the work,"said Lyu Jun,a young truck driver at the construction site.This is his first Spring Festival away from home.For ordinary people,this year's Lunar New Year's Eve lacks some gatherings.Yin Yeqiong, from Hunan Province,refunded(退掉)her tickets back home after much debate."I had it in mymind to still go home,but finally decided to stay in Wuhan,"she said."Our stay will help reduce panic in other places."Doctors,nurses and experts from across the nation have been selected to join the battle,and manufacturers have restarted their plants to produce medical consumables that have been running short in many places."This is going to be an unforgettable Spring Festival,"said Chen Ying,a writer."Because I feel that at this moment,there are so many families that I do not know,in every corner of this city, praying for our home."28.What does the underlined word“quarantine”mean in paragraph2?A.SupportB.Supply.C.Serve.D.Separate.29.Why did Yin Yeqiong decide to stay in Wuhan?A.She couldn’t afford the ticket home.B.She was eager to work as a volunteer.C.She didn’t want to cause unnecessary trouble.D.She was not allowed to go back to her home.30.What does the text intend to tell us?A.The Chinese are fighting against the epidemic together.B.The epidemic is not so serious that we can enjoy our normal life.C.Coronavirus,a highly infectious disease,is spreading around china.4/12D.Not until the makeshift hospital is completed will the doctors find the cure.31.What can we learn from the text?A.The Spring Festival in China this year is the same as before.B.Chen Li and her husband are fighting against coronavirus in Wuhan.C.Lyu Jun and his coworkers will help complete the hospital in Beijing.D.There is no need to worry because we have plenty of medical consumables.DAn argument is an exchange of views between people who do not agree.Some arguments turn into angry quarrels.Suppose,a friend borrowed your car and left it fill of fast-food rubbish.What if you dealt with the situation this way:YOU:Why do you leave all that trash in my car?It’s an absolute mess,and I'm tired of you always being so inconsiderate.FRIEND:Look who's talking.You're such a slob(邋遢鬼),I didn’t think you’d notice.How did a minor incident turn into such an unpleasant exchange?You were angry and feeling as though your kindness was being abused.So instead of talking with your friend,you yelled at him.“Why did you”was a challenge.That's why your friend immediately went on the defensive and yelled back.Now the argument is over.In fact,you don't feel satisfied that you’ve told him off!During the heat of the moment,he said something that hurt your feelings.And perhaps you didn't really mean what you said.How can you avoid such situation?Learn to argue in a better way.Try something like this:YOU:I don't like it when you leave trash in my car.It makes me feel like you don’t respect me.FRIEND:You're right.It was very inconsiderate,I won't do it again.Before speaking,take a deep breath and get control of your anger.The words you use will let your friend know specifically what is bothering you and most importantly,treat him with respect.So he will respond in the same way.Also notice that begin the argument with the pronoun“I”.An argument beginning with“You did…”is generally a challenge.What usually follows is criticism or an insult.And it goes downhill fast from there.Using“I”in arguments won’t eliminate all disagreements.But it can certainly cut down on the yelling.32.How may you feel after an unpleasant argument with yourfriend?A.Angry and hurt.B.Still wanting to argue.C.Satisfied with the yell.D.Challenged by the argument.33.Which can probably replace the underlined phrase“During the heat of the moment”?5/12A.When the weather is hot outside.B.When the talk becomes exciting.C.When the argument gets emotional.D.When your friend is warmer than ever.34.Which sentence might be used in an“I”argument?A.You are making me feel bad.B.What's the matter with you?C.What on earth are you telling me?D.It makes me feel bad when hearing that.35.What is the text mainly about?A.Winning arguments with other people.B.Making sure that people do what you want.ing the“I”method to communicate better.D.Avoiding having disagreement withfriends.第二节(共5小题;每小题2分,满分10分)根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。
吉林省长春市2020届高三普通高中质量监测(二)文数试题含答案
f
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+
|
x
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− 1 ≤ x ≤1, 2
−3x,
x−1 2
由此可知, f (x) 9的解集为{x | −3 x 3}
(Ⅱ)当 a 0 时, f (x) 的最小值为 f (1) 1;
当 a = 0 时, f (x) 的最小值为 f (1) =1;
当 a 0 时, f (x) 的最小值不恒大于 1.
综上, a (0,+) .
(5 分) (10 分)
数学(文科)试题参考答案及评分标准 第3页(共3页) 5
即
xM 2
=
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|
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(12 分)
21. (本小题满分 12 分)
【参考答案与评分细则】(Ⅰ)由题可知 f (x1) = f (x2) ,且 f (x1) = 0 ,
(4 分)
(Ⅱ)设直线 AP 的方程为: y = k(x + 2) ,则直线 OM 的方程为 y = kx .
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吉林省长春市2023-2024学年高三上学期质量监测(一) 地理试题(含解析)
长春市2024届高三质量监测(一)地理本试卷共6页。
考试结束后,将答题卡交回。
注意事项:l.答卷前,考生先将自己的姓名、准考证号码填写清楚,将条形码准确粘贴在考生信息条形码粘贴区。
2.答题时请按要求用笔。
3.请按照题号顺序在答题卡各题目的答题区域内作答,超出答题区域书写的答案无效:在草稿纸、试卷上答题无效。
4.作图可先使用铅笔画出,确定后必须用黑色字迹的签字笔描黑。
5.保持卡面清洁,不要折叠,不要弄破、弄皱,不准使用涂改液、修正带、刮纸刀。
一、选择题:本题共16小题,每小题3分,共48分。
在每小题给出的四个选项中,只有一个是符合题目要求的。
珠三角经济圈(下图)包括“广佛肇”“深莞惠”和“珠中江”三大经济圈,共9个广东省内城市,城市间经济互动往来程度高。
近年来,珠三角经济圈积极融入港澳经济,共同打造粤港澳世界级城市群。
据此完成下面小题。
1.推测珠三角三大经济圈的划分标准()A.行政区划B.地理位置C.产业结构D.地域文化2.目前,珠三角经济圈城市间的经济互动最可能表现为()A.各城市均衡发展,产业互补性较强B.各城市以服务业为主导,分工明确C.以广深为核心,周边城市协同发展D.周边城市辐射带动核心城市的发展家庭牧场是以家庭关系为主,辅之以亲朋、邻里关系,实行自主经营、自负盈亏、从事畜牧业商品性生产的、具有一定规模的、相对独立的经济实体。
下图示意我国某地区家庭牧场羊养殖一般性生产活动农事安排。
据此完成下面小题。
3.与大型国营牧场相比,家庭牧场()A.抵御风险能力强B.经营管理更规范C.生产技术水平高D.生产方式更灵活4.该地区家庭牧场净收入最多的时间在()A.1~4月B.4~7月C.7~10月D.10~次年1月秦代形成的任嚣城,乃广州筑城之始,其时的球江,水面宽阔,潮汐涌退。
2000多年来,广州港是我国经久不衰的南方火港。
下图为“古代广州城市空间拓展及港口位置演变图”。
据此完成下面小题。
5.秦代任嚣城取甘溪水而非珠江水为生活水源,主要考虑甘溪()A.水量更大B.水质更佳C.汛期较短D.水流稳定6.导致古代广州港口码头位置不断迁移的决定性因素是()A.城市扩张B.地价上涨C.水陆变迁D.运具扩大7.古代广州港口码头附近区域的主要功能是()A.行政管理B.居住生活C.军事防御D.商业贸易板根(见下图),也被称为板状根,是热带雨林高大乔木常见的根部形态,具有支撑、吸收营养、呼吸、改变微环境等功能,在整个生态系统中发挥着重要作用。
吉林省长春市普通高中2020届高三质量监测(三)理综(PDF版)
= m/s 或
≈ 4.17m/s (4.2m/s ) ------------------1 分
= m/s 或
= 12.5m/s
【参考答案四】
= -------------------------------------1 分
---------------------1 分
( − ) = -------------------------------------1 分
33 题~第 38 题为选考题,考生根据要求做答。 d
22.(5 分)(1)t (2 分) (2)C(2 分) (3)天平(1 分) 23.(10 分)(1)100(2 分);
图1
图2
(2)①电路图如图 1 所示(满分 3 分,全部正确得 3 分,每错一条线扣 1 分,最低得分 0 分)
④图像如图 2 所示(满分 2 分,画成折线不得分)
U ab
= - Blv 3
(2)(6 分)
Q
=
1 6
mv02
(3)(7 分) =
+
【解析】(1)当金属棒 gh 以速度大小为 v 运动时产生的电动势:
E = Blv --------------------------------------------------------1 分
内电阻为 R,外电路电阻为 --------------------1 分
= -------------------------------------1 分
= m/s 或
≈ 4.17m/s (4.2m/s ) ------------------1 分
= m/s 或
= 12.5m/s ---------------------1 分
2020-2021学年吉林长春普通高中高三质量监测物理卷(解析版).doc
2020-2021学年吉林长春普通高中高三质量监测物理卷(解析版)姓名:_____________ 年级:____________ 学号:______________题型选择题填空题解答题判断题计算题附加题总分得分1. (知识点:简谐运动的图象)(10分)一列沿着x轴传播的横波,在t=0时刻的波形如图甲所示。
甲图中x=2cm处的质点P的振动图象如乙图所示。
求:i.该波的波速和传播方向;ii.从t=0时刻开始,甲图中x=5cm处的质点Q第三次出现波峰的时间。
【答案】i.0.02m/s;波沿着x轴负向传播ii. 2.75s【解析】试题分析:i.由题可知:波长λ=2cm,周期T=1s 。
波速v==0.02m/s;波沿着x轴负向传播;ii.质点Q第三次到达波峰时间为2T+=2.75s考点:机械振动;机械波的传播.(12分)从地面上以初速度v0=20m/s竖直向上抛出一质量为m=2kg的小球,若运动过程中小球受到的空气阻力与其速率成正比关系,小球运动的速率随时间变化规律如图所示,t1时刻到达最高点,再落回地面,落地时速率为v1=10m/s,且落地前球已经做匀速运动,重力加速度g=10m/s2。
求:(1)小球从抛出到落地过程中克服空气阻力所做的功;(2)小球抛出瞬间的加速度大小。
【答案】评卷人得分(1)300J (2)30m/s2【解析】试题分析:(1)以小球为研究对象,从地面抛出到落回地面过程中应用动能定理:即球从抛出到落地过程中克服空气阻力所做的功(2)空气阻力:,下落时速率为v1,且落地前球已经做匀速运动:球抛出瞬间:考点:牛顿第二定律;动能定理.(20分)如图甲所示,一对足够长的平行粗糙导轨固定在水平面上,两导轨间距l=1m,左端用R=3Ω的电阻连接,导轨的电阻忽略不计。
一根质量m=0.5kg、电阻r=1Ω的导体杆静止置于两导轨上,并与两导轨垂直。
整个装置处于磁感应强度B=2T的匀强磁场中,磁场方向垂直于导轨平面向上。
吉林省长春市普通高中2020届高三质量监测(三)(三模)理科综合试题及答案解析
解得:
p1
2 3
p0
----------------------------------------------------------1 分
②第二次抽气: p1V pA 0.5 1V -------------------------------------2 分
第一次打气: p0V 0.5 p1V p2V ------------------------------------2 分
α =θ,β=θ+α
sinα=sinθ= 0.6 -------------------------------------------------------2 分 sinβ= sin(θ+α)= sin 2θ= 24 ------------------------------------1 分
【此步骤也可以对“工”型架应用动量定理,设沿导轨向下为正方向
其中
h 0---------------1 分, --------------------1 分
以上两式写成
h 0 的同样给 2 分,其中 写成 I 的,不扣分。】
*.*.*.注.意.*.*.*.以.上.步.骤.共.计.2.分.,.写.出.其.中.一.个.研.究.对.象.的.公.式.即.可.,.对.于.写.出.两.个.研.究.对.象.公.式.的.不. 重.复.得.分.
长春市 2020 届高三质量监测(三)理综物理试题参考答案及评分细则
二、选择题:本题共 8 小题,每小题 6 分,共 48 分。在每小题给出的四个选项中,第 14~18 题只有一项 符合题目要求,第 19~21 题有多项符合题目要求。全部选对的得 6 分,选对但不全的得 3 分,有选错的 得 0 分。 14.B 15.B 16.C 17.C 18.D 19.BC 20.BCD 21.AB 三、非选择题:包括必考题和选考题两部分。第 22 题~第 32 题为必考题,每个试题考生都必须做答。第
吉林省长春市普通高中2020届高三数学上学期质量监测试题一理
长春市2020届高三质量监测(一)理科数学本试卷共4页。
考试结束后,将答题卡交回。
注意事项:1.答题前,考生先将自己的姓名、准考证号码填写清楚,将条形码准确粘贴在考生信息条形码粘贴区。
2.选择题必须使用2B 铅笔填涂;非选择题必须使用0.5毫米黑色字迹的签字笔书写,字体工整、笔迹清楚。
3.请按照题号顺序在答题卡各题目的答题区域内作答,超出答题区域书写的答案无效;在草稿纸、试卷上答题无效。
4.作图可先使用铅笔画出,确定后必须用黑色字迹的签字笔描黑。
5.保持卡面清洁,不要折叠,不要弄破、弄皱,不准使用涂改液、修正带、刮纸刀。
一、选择题:本题共12小题,每小题5分,在每小题给出的四个选项中,只有一项是符合题目要求的。
1.已知集合A ={x||x|>2},B ={x|x 2-3x>0},则A∩B=A.ΦB. {x|x>3或x≤-2}C. {x| x>3或x<0}D. {x| x>3或x<0} 2.复数z =2i 2+i 5的共轭复数z 在复平面上对应的点在A.第一象限B.第二象限C.第三象限D.第四象限3.已知133131(),3,log 33a b c ===,则A.a<b<cB.c<b<aC.c<a<bD.b<c<a. 4.己知直线x +y =0与圆(x -1)2+(y -b)2=2相切,则b = A.-3 B.1 C.-3或1 D.525.2019年是新中国成立七十周年,新中国成立以来,我国文化事业得到了充分发展,尤其是党的十八大以来,文化事业发展更加迅速,下图是从2013年到2018年六年间我国公共图书馆业机构数(个)与对应年份编号的散点图(为便于计算,将2013年编号为1,2014年编号为22018年编号为6,把每年的公共图书馆业机构个数作为因变量,把年份编号从1到6作为自变量进行回归分析),得到回归直线ˆ13.7433095.7yx =+,其相关指数R 2=0.9817,给出下列结论,其中正确的个数是①公共图书馆业机构数与年份的正相关性较强②公共图书馆业机构数平均每年增加13.743个③可预测2019年公共图书馆业机构数约为3192个A.0B.1C.2D.36.中国传统扇文化有着极其深厚的底蕴。
