东北师大附中、长春十一高中、吉林一中、四平一中、松原实验中学五校2021届高三联合考试理科数学试题

吉林省东北师大附中、长春十一高中、吉林一中、四平一中、松原实验中学2021届高三英语下学期2月联合模拟考试试题（含解析）1.本试卷分为第Ⅰ卷和第Ⅱ卷两部分，共10页，满分为150分，考试用时120分钟。

考试结束后，只交答题卡。

2.客观题请用 2B 铅笔填涂在答题卡上，主观题用黑色碳素笔写在答题卡上。

第Ⅰ卷（共 95 分）第一部分听力（共两节，满分 30 分）该部分分为第一、第二两节。

注意：回答听力部分时，请先将答案标在试卷上。

听力部分结束前，你将有两分钟的时间将你的答案转涂到客观题答题卡上。

第一节（共小题；每小题1.5 分，满分 7.5分）听下面5段对话，每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。

听完每段对话后，你都有 10 秒钟的时间来回答有关小题和阅读下一小题。

每段对话仅读一遍。

1. What is the woman's problem?A. She is a bit overweight.B. She has got food poisoning.C. She has high blood pressure.2. Where was the man born?A. In Boston.B. In New York.C. In Los Angel es.3. What is the relationship between the speakers?A. Schoolmates.B. Fellow workers.C. Teacher and student.4. Why did Lisa visit YouTube?A. To kill time.B. To watch-movies.C. To do research.5. What are the speakers talking about?A. Great works of literature.B. The man's childhood interest.C. The balance of family and work.第二节（共 15 小题；每小题1.5 分，满分 22.5 分）听下面5段对话或独白，每段对话或独白后有几个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。

2021年吉林省东北师大附中、长春十一中、吉林一中、四平一中等五校联考高考英语模拟试卷（3月份）一、阅读理解（本大题共15小题，共30.0分）AWhat it doesThe self-cleaning door handle is combining with advanced photo catalytic（光催化）and black light technology.A light source activates the door's handle coating, telling it to start cleaning. It can minimize the risk of infection by contact and improve the cleanliness of a space.How it worksThe working principle of the product is that a thin advanced photo catalytic coating can effectively break down bacteria（细菌）on the surface of a substance.A consistent UV light source-inside a transparent glass door handle-is required to activate the door's handle coating on the outer surface for disinfection, so a generator （发生器）is used to provide electricity to light up a UV LED lamp by the motion of an opening and closing door. Then, the door handle can clean by itself.Design processWe made the first version by using stainless steel. However,it caused the door handle to be heavier. Then, we tried aluminum, which made it light and easy to fix. We also improved the generator output which effectively turned energy from door movement into a light source. How it is differentOur innovative design is simple, effective, and attractive. It has an elegant smooth shape, and its minimalist appearance stands out in today's world of inventions. Nowadays, people use chemical cleaning materials to clean up public areas but it harms the human body. Our design can be used for a long time and is effective. It can self-clean after each use. In the door lock and door handle market, it is a unique design because there are no similar products.Future plansIn the future, we will commercialize the product and hope that it can compete on the market with similar products. We are going to connect with public properties, for example, shopping malls, hotels, hospitals and public restrooms, where the risk of spreading infection is higher. AwardsIn addition to winning the James Dyson Award, it has also received the Gold Award, and in 2016，it was featured in the 44th International Geneva Inventions Exhibition.1.How does the self-cleaning door handle function？______A. It controls the door movement automatically.B. It minimizes the risk of infection by less contact.C. Chemical cleaning materials are used to clean it up.D. The light source tells the door handle coating to clean itself.pared with the first version of the product, the present one is ______ .A. safer and cheaperB. cleaner and easierC. less heavy and more effectiveD. more attractive and expensive3.What do we know about the new invention according to the passage？______A. It has been widely used in public areas.B. It has received recognition for its innovation.C. It is quite competitive among similar products.D. It will replace traditional chemical cleaning materials.BRome wasn't built in a day. And neither was the Roman subway system. Underground work is slow going,because construction workers often meet with frescoes（壁画）and other valuable stone foundations thousands of years ago. And a few years ago, they found the wooden foundations of a luxurious porch from a Roman building.So local archaeologists called in Mauro Bernabei of the National Research Council of Italy. He's a dendrochronologist：someone who analyzes tree rings, which give age and environmental information."We have to study wood because it's full, really full, of information!" Bernabei and his team found that the wooden planks were oak（橡木）. But the wood's origin was harder to determine. So they compared the tree rings in the oak floor to those available in libraries of tree rings that contain timber from all over Europe. And they found a match for the Roman wood-from the Jura region of eastern France,more than 600 miles away.The researchers also determined that it was used in about 40 to 60 B.C. And some came from trees already up to 300 years old when they were cut down. The details are in the journal PLOS ONE.The discovery is the first clear evidence of oak from north of the Alps being used to buildancient Rome. And it's a reminder that the Romans had a complex trading network. These trees, for example, likely floated down two rivers, across the Mediterranean and up another river to Rome.Bernabei says Roman archaeologists usually destroy ancient wood-it's not as valuable as jewelry and vases and frescos. But he's hoping this study might change their minds. "Save the wood,yes! And call me,if you don't want to save-please,call me!" He says.4.Why does the subway in Rome go slowly？______A. It is hard to dig up the earth in Rome.B. There are many ancient ruins buried here.C. It is very dangerous to work too fast in Rome.D. The Roman are not experienced in building subways.5.What can people learn from the wood foundations？______A. The wealth in ancient RomeB. The trading information of ancient RomeC. The culture of ancient RomeD. The social relations of ancient Rome6.What does the underlined word in paragraph 4 refer to？______A. The stoneB. The subwayC. The French woodD. The Roman foundation7.What is the main idea of this passage？______A. Scientists found some information about ancient Rome.B. Wood was not as valuable as stones in ancient Rome.C. Only the rich people in ancient Rome could use wood.D. Ancient Rome could have a rich trading network.CIt's no secret that inhaling（吸入）smoke is bad for your lungs. But now,scientists are suggesting smoke may also carry and spread infectious diseases.The theory, published in Science Magazine, is based on research that found wildfire smoke is teeming with thousands of species of microorganisms. Some of these microorganisms, including bacteria and fungal spores（真菌孢子），are known to cause disease.The new research suggests that when a wildfire burns plant or animal matter and disturbs soils, it exposes thousands of species of bacteria and fungi（真菌）that otherwise might not easilybecome airborne（空气传播的）. You might think the high heat from fire would kill these organisms, but one study cited in the article found that some bacteria even multiply post-fire. Scientists say the organisms latch onto smoke particulates（微粒），allowing them to travel thousands of miles across continents.Dr. Peter Chen,director of the Division of Pulmonary and Critical Care Medicine atCedars-Sinai Medical Center in Los Angeles, is "intrigued" by the theory but somewhat skeptical that the microorganisms in smoke would actually cause infections. Many bacteria and fungi don't cause lung infections, says Chen, but it's certainly possible that a significant amount could worsen symptoms in someone with a pre-existing lung condition. "I always thought it was the particulates in smoke that were causing these issues," says Chen,"But when I read this, I started thinking：Could it be the microorganisms that are also worsening existing illness？" Whether the microbes in smoke actually cause infection or simply worsen potential respiratory （呼吸的）issues, the article raises a new health threat that is "certainly alarming," says Kelsey Jack,an associate professor of environmental and development economics.This is especially true for lower-income populations,Jack says, because people with fewer means are often more exposed to the environment. If smoke is affecting the air quality in a certain area, the people who work outside, or who have to go to the office on foot or by bike, will inhale more smoke than those who drive.But until more research is done,Chen says the best thing people can do is just follow existing recommendations when air quality is poor - including staying indoors, keeping windows and doors closed, using HEPA filters（过滤器）and running air conditioning.8.What can we know about the microorganisms from paragraph 2？______A. They could be killed by high heat.B. They could possibly travel through air by themselves.C. They could reproduce in large numbers after fires.D. They can easily attach themselves to smoke particulates.9.How do most microorganisms affect people according to Dr. Peter Chen？______A. They will causes lung infections.B. They might worsen lung disease.C. They will destroy living environments.D. They might damage respiratory system.10.Why are low-income people suffering more than others？______A. They live in poor areas.B. They drive to and from work.C. They have suffered from lung disease.D. They are exposed to polluted air more frequently.11.What does the last paragraph mainly talk about？______A. Results of the new research.B. Disagreements between the author and Chen.C. Suggestions on dealing with poor air quality.D. Benefits of preventing smoke from polluting the air.DIt should be one of the main goals in today's society to reduce plastic consumption. Though many of us believe that recycling will solve the problem, and continue using plastic, it's actually the opposite. In 2013，254 million tonnes of trash was produced in the U.S. alone, and only around 30% was recycled. This means that the rest ended up in a landfill and will stay there for up to 1000 years.Recently,China has stopped importing trash from all over the world. Before this, over 30% of the world's waste would end up in China, causing a popular belief that Asian countries are those responsible for creating the majority of the waste in the world. Now, Asian countries, including Vietnam and Thailand,are looking for new ways to avoid plastic. One of those ideas was a new, eco-friendly way to pack their goods by avoiding plastic packaging.One of the Perfect Homes Chiangmai's team members noticed a creative way to reduce plastic that a supermarket called Rimping Supermarket was using and decided to take photos of their shelves with his phone. Little did he know that people from all around the world would absolutely love this idea. "I just popped in to get a few items while we were waiting to sign some contracts（合同）with our lawyer,who was delayed. When I noticed the vegetables wrapped in banana leaves and simply liked the idea, I took a few pictures and posted them online" he said.With more than 3.5 million views and over 17 thousand shares, the idea became something people can encourage more supermarkets to implement（贯彻）.Some have noticed that not everything on the shelves is completely plastic-free,to which the supermarket responded that they are taking one step at a time,but it's not that easy. Many products come to the supermarkets pre-packaged and many companies are interested inwrapping their produce in plastic since it is the cheapest and the easiest option.It's now up to the shoppers to show the supermarket which they prefer.If every one opts for the banana leaf packaging, they will stop stocking the items in plastic.12.What can we infer about recycling from paragraph 1？______A. The author thinks highly of recycling.B. The US did a great job in recycling in 2013.C. Recycling has failed to solve the plastic problem.D. Recycling helps a lot in reducing plastic consumption.13.Why did the man go to Rimping Supermarket？______A. To take photos of their shelvesB. To meet with their lawyer thereC. To buy some itemsD. To sign some contracts with the supermarket.14.What does the underline phrase "opts for" in the last paragraph probably mean？______A. DoubtsB. DiscussesC. DislikesD. Chooses15.What is the best title of the passage？______A. Leaf Packaging Goes ViralB. Reducing Plastic ConsumptionC. Recycling Avoids Plastic PackagingD. A Good Option Makes A Difference二、阅读七选五（本大题共5小题，共10.0分）Music therapy Music therapy（疗法）is a form of therapy which utilizes music.（1）______ Humans have been making music for thousands of years,and many doctors throughout history have proved the idea that music is beneficial to the mind and body, in addition to being enjoyable.（2）______ Listening to and making music appears to reduce heart rate and blood pressure, and provide people with a sense of calmness, safety, or security.（3）______ Most practitioners have studied psychology or psychiatry along with music. Music therapists work in hospitals, clinics, residential facilities, private practices, and homes. Some specific applications for music therapy include：pain management,stress management,behavioral therapy,treatment for substance abuse,and work with people who have developmental disabilities. （4）______ And they can include a variety of things,fromlistening to a piece of music and talking about the feelings it evokes（激发）to playing an instrument or writing songs as a method of personal expression.Like other expressive therapies such as art therapy and dance therapy,the focus of music therapy is not on the end product,such as a musical composition, and people do not need to have prior experience with music to benefit from this type of therapy.（5）______A.This type of therapy has a number of benefits.B.The measures are tailored to the need of the patient.C.People can practice music therapy in a variety of ways.D.This type of therapy may involve making music or listening to music.E.But there are still many fields of music therapy needing to be changed.F.In the 20th century,the practice of music therapy improved as researchers conducted studies to learn how music acted on the brain and body.G.What is more focused on is the process of listening to, creating, or thinking about music.16. A. A B. B C. C D. D E.E F.F G. G17. A. A B. B C. C D. D E.E F.F G. G18. A. A B. B C. C D. D E.E F.F G. G19. A. A B. B C. C D. D E.E F.F G. G20. A. A B. B C. C D. D E.E F.F G. G三、完形填空（本大题共20小题，共30.0分）As an undergraduate in Mumbai,India. Saad Bhamla wanted to do something rewarding for his maternal grandparents：Buy them a pair of hearing aids.But the prices were（1）______ high-and far beyond his（2）______ .Now, 15 years later,the professor has（3）______ a device to help the old across the globe：A（4）______ hearing aid.The practical device,（5）______ in a new study,could help restore hearing to millions（6）______ from age-related hearing loss for less than the（7）______ of a bottle of water.The device is the size of a matchbox and can be（8）______ like a necklace. At bulk（批量）rates,Bhamla says, it would（9）______ just under＄1 to make.In low and middle-income countries,only 3% of（10）______ with age-related hearing loss wear hearing aids, and in countries like the United States, the（11）______ rate hovers（徘徊）at about 20%，according to Bhamla. Aside from concerns about cost, Bhamla says,"a lot of people don't（12）______ they have hearing loss…and then there is the social（13）______ of wearing the aid. Those with the aids would be looked down upon."Bhamla（14）______ biomedical devices to be as cheap and（15）______ as consumer electronics.He still remembers the（16）______ of learning that he couldn't（17）______ to help his grandparents. "I thought owning a laptop and a cellphone meant I had the means to（18）______ hearing aids, but then I realized how（19）______ they were," he recalls. "So I understood the world more（20）______ ."21. A. shockingly B. increasingly C. fortunately D. dangerously22. A. limit B. means C. control D. height23. A. invited B. bought C. invented D. found24. A. creative B. flexible C. potable D. cheap25. A. blamed B. decorated C. painted D. described26. A. making B. escaping C. suffering D. hearing27. A. price B. size C. capacity D. weight28. A. bought B. worn C. matched D. strengthened29. A. donate B. cost C. process D. design30. A. doctors B. grandparents C. researchers D. people31. A. recognition B. function C. adoption D. collection32. A. expect B. realize C. value D. ignore33. A. prejudice B. pride C. help D. communication34. A. wants B. warns C. views D. reminds35. A. imaginable B. visible C. accessible D. tiny36. A. joy B. sorrow C. anger D. surprise37. A. stop B. forget C. afford D. agree38. A. update B. charge C. wrap D. purchase39. A. expensive B. heavy C. wonderful D. wealth40. A. actively B. clearly C. happily D. desperately四、语法填空（本大题共1小题，共15.0分）41.The earliest exiting collection of Chinese poetry,Shi Jing（Book of Songs），（1）______（date）back to as early as the 11th century BC，but the history of Chinese poetry may be even longer than that.（2）______ （develop）and changing for thousands ofyears,Chinese poetry is like a beautiful and fathomless ocean to（3）______Chinese-speaking people couldn't help but keep being drawn.The very ancient poetry that was written 1000 or more years ago was simpler and about common things（4）______ love, romance and nature that people appreciate.（5）______ much poetry was written in the eras following the Song Dynasty, it is thought the poets became（6）______ （increase）academic and abstract so that modern Chinese can't appreciate the style and meaning.For foreigners, ancient Chinese poetry is more difficult to understand. One of the reasons is the nature of Chinese characteristics（7）______ （they）.Often the words have many meanings, and this make the translation of Chinese into English（8）______ key part of reading and understanding Chinese poetry. Put simply, good translation is essential to fully understand Chinese poems.If the greatest Chinese poets（9）______ （name），Du Fu and Li Bai of Tang Dynasty who were（10）______ （contemporary）and who both traveled widely in China often come up on top. Along with them, another famous ancient poet is Su Shi of the Song Dynasty.五、短文改错（本大题共1小题，共10.0分）42.With the Spring Festival approached, my classmates and I decided to do somethingspecial to give our motherland a precious gift. After a heating discussion,we agreed on carrying out a flash mob singing the song "My Motherland and Me" at a local railway station.On the earlier morning of the day,we set out for the station. After setting up theequipments,I took deep breath and began to sing. Meanwhile, my classmates sing together with me,playing the musical instruments,what got the atmosphere warmed up.Manypassers-by also joined in us,waving national flags.The flash mob lit everyone's love for their country.It was really a meaningful but unforgettable gift.六、书面表达（本大题共1小题，共25.0分）43.假设你是李华，上周你们班级参加了学校举办的"爱科学"板报展活动。

东北师大附中 长春市十一高中 2021届高三联合模拟考试吉林一中 四平一中 理科综合试题答案松原实验中学物理答案及评分标准14．D 15．A 16．C 17．A 18．A 19．AC 20．ACD 21．BCD 22. 答案：①C ； ②xgy 2－y 1；③1:1 （每问2分） 23.（1）a ；（1分）（2）)(12A R R I U U ++=；（3）5.9-6.1均得分；4.9-5.1均得分 （4）0.52-0.65均得分；（以上每个空2分）24.解：(1) 物体A 从A 到O 点是匀减速运动，设到O 点的速度为v t ， 摩擦力产生加速度：ma mg =μ；a =6m/s 2 （1分）由运动学公式：12022ax v v t -=-；得：v t =8m/s （2分）OB 段匀速运动：12t v x t ⋅=；得：t 1=0.5s （1分） (2) 物体A 在BO 段匀速返回，到OA 段匀减速停止在A 点。

由运动学公式：12120ax v -=-（2分）；得：v 1=6m/s （1分）(3) 物体A 与B 发生完全弹性正碰，设速度向右为正，由动量守恒和能量守恒得： 21Mv mv mv t += （2分）22212212121Mv mv mv t += （2分） 解得：t v Mm Mm v +-=1；将v 1=-6m/s 代入得：M=7kg ；（2分） 25.【解】（1）带电小球在右侧区域做匀速圆周运动，故有：mg Eq = （1分）对小球从释放到C 点的过程，根据动能定理得：()()221cos sin 2C mv R R R mg E q =-+-θθ （2分） 设在C 点轨道对小球的作用力大小为F ，对小球，有：()Rv m mg Eq F C22=--（1分）得：Eq F 3= （1分）由牛顿第三定律，小球经过C 点时对轨道的压力为3Eq ，方向竖直向上。

（1分） （2）设带电小球从距A 点L 远处释放，到达B 点处的速率为v ，由动能定理得:()221sin 2mv L mg Eq =-θ （1分）故两次释放距离和进入右侧区域的速度满足：211222L v L v =；（1分）由于1219L L =，故1213v v = （1分）在右侧电磁场中，根据洛伦兹力提供向心力，得：rv mqv B 20= （1分）其中r 表示小球做圆周运动的半径；所以两次半径之比：1213r r = （1分） （3）在△BO 1O 和△BO 2O 中，设BO =d ，∠O 1BO =θ由余弦定理得:222111()2cos r R r d r d θ+=+- （2分）222222()2cos r R r d r d θ-=+- （2分）联立得：221r；222r ， （1分）由1213r r =，得：d =；半径R r 671= （1分） 小环进入右侧区域的速度：()2121sin 2mv R mg Eq =-θ （1分） 由12110r v m qv B =；得：R B Em q 2049236=（1分） 33．【物理—选修3-3】（15分）（1）答案：ABE （5分）(2)【解】○1对缸内气体一开始：10p p =加拉力稳定后对C 有：S P F S P 20+= （2分）所以：22P P =设弹簧伸长量为L ，则对D 有：()S P P kL 20-=（2分）得：LSP k 20=（1分） ○2对两汽缸整体，初始：156V LS LS LS =+=；压强：P 1=P 0；温度：T 1=300K 末状态设活塞C 到缸底的距离为x ，则：V 2=xS +4LS ；压强：22P P =；温度：T 2=200K （2分） 根据理想气体状态方程：222111T V P T V P =（1分）； 得：x =4L （2分） 34．【物理—选修3-4】（15分）（1）答案：ABD （5分）（2）【解】（1）由几何关系可知，题图中∠ODE =60°，故光线OD 在AC 面上的入射角为30°，折射角为45°；根据光的折射定律有sin 452sin 30n ︒︒== （2分） 由sin C =1/n ，（2分），可知C =45°（1分） （2）由几何关系可知，光线OE 在AC 面上的折射角为45°，根据光的折射定律有，OE 光线在AC 面上的入射角为30°，故题图中∠OEC=60°， 则△ODE 为等边三角形，（2分）；在△OCD 中，由正弦定理：00120sin 245sin 36xL=（2分）， 解得：L x 2= （1分）理综合 化学答案7 【答案】B 8【答案】D 9【答案】A 10【答案】A 11【答案】C 12【答案】B 13【答案】D 26.（14分）【答案】(1) +4, （1分） H 2SiO 3 （1分）(2) ZrSiO 4+4NaOH==高温== Na 2SiO 3+Na 2ZrO 3+2H 2O （2分） (3) Cl 2(或氯水)（1分）, ZrO 32-+4H +==ZrO 2++2H 20 （1分） (4) (2.2×10-4.4,2.2×10-2.4 ] 或 2.2×10-4.4<c(Cu 2+)≤2.2×10-2.4或2.2×10-4.4～2.2×10-2.4 （2分）3.75L （2分） (5) （2分）。

2022届吉林省东北师大附中、长春市十一高中、吉林一中、四平一中、松原实验中学高三上学期联合模拟考试数学（文）试题一、单选题1．已知集合{}23,N A x x x =<∈，则A 的真子集共有（ ）个．A ．3B ．4C ．6D ．7【答案】A【分析】解一元二次不等式求集合A ，根据所得集合的元素个数判断其真子集的个数.【详解】由题设，{|N}{0,1}A x x x =<∈=， ∴A 的真子集共有2213-=个. 故选：A.2．已知i 为虚数单位，复数i3iz =+，则复数z 在复平面内对应的点位于( ) A ．第二象限 B ．第三象限 C ．直线30x y -=上D ．直线30x y +=上 【答案】D【分析】根据复数的运算法则求出z 和z ，根据复数的几何意义即可求解. 【详解】()()()i 3i i 13i 13==i 3i 3i 3i 101010z -+==+++-， 13i 1010z =-对应的点13,1010⎛⎫- ⎪⎝⎭在第四象限，且在直线30x y +=上. 故选：D.3．已知x ∈R ，则“1x >”是“1x >”的（ ） A ．充分非必要条件 B ．必要非充分条件 C ．充要条件 D ．既非充分又非必要条件【答案】B【分析】解不等式转化条件，结合充分必要性定义即可作出判断. 【详解】由1x >得1x <-或1x >， ∴“1x >”是“1x >”的必要非充分条件． 故选：B ．4．工厂生产某种产品的月产量y 与月份x 满足关系式0.5x y a b =⋅+，现已知该工厂今年1月份､2月份生产该产品分别为1万件､1.5万件，则此工厂4月份生产该产品的产量为（ ） A ．1.275万件 B ．1.750万件C ．1.875万件D ．2.725万件【答案】C【分析】运用代入法，通过解方程组进行求解即可.【详解】因为该工厂今年1月份､2月份生产该产品分别为1万件､1.5万件，所以1210.5220.52221.50.52x x a b a y y a b b -=⋅+=-⎧⎧⇒⇒=-⋅+⇒=-+⎨⎨=⋅+=⎩⎩， 此工厂4月份生产该产品的产量为1422 1.875--+=万件， 故选：C5．在棱长为4的正方体内任取一点，则这个点到该正方体的中心距离不超过1的概率为（ ）A ．π6B ．π16C ．π32D ．π48【答案】D【分析】利用几何概型的概率公式求解，先求出以正方体的中心为球心，1为半径的球的体积，再求出正方体的体积，两体积相比可得答案【详解】因为棱长为4的正方体的体积为3464=，以正方体的中心为球心，1为半径的球的体积为43π，所以在棱长为4的正方体内任取一点，则这个点到该正方体的中心距离不超过1的概率为436448ππ=，故选：D6．已知π0,2α⎛⎫∈ ⎪⎝⎭，若3cos 5α=，则πcos 6α⎛⎫+ ⎪⎝⎭等于（ ）ABCD【答案】B【分析】利用同角三角函数的基本关系可得4sin 5α，再利用两角和的余弦公式，即可得到答案.【详解】0,2πα⎛⎫∈ ⎪⎝⎭，3cos 5α=，∴4sin 5α=，∴341cos +cos cos sin sin 666552⎛⎫=-=⨯= ⎪⎝⎭πππααα故选：B.7．已知向量a ，b 满足2a =，3b =，且a 与b 的夹角为6π，则()()2a b a b +⋅-=（ ） A ．6 B ．8 C ．10 D ．12【答案】B【分析】应用平面向量数量积的运算律展开目标式，根据已知向量的模和夹角求值即可.【详解】由题设，()()2222838a b a b a a b b +⋅-=+⋅-=+=. 故选：B.8．一个圆柱的侧面展开图是一个边长为2的正方形，则这个圆柱的体积为（ ） A ．π B ．2πC ．1πD ．2π【答案】D【分析】根据圆柱的侧面展开图确定圆柱的底面半径和高，即可求出其体积. 【详解】设圆柱的底面半径为r ，高为h ， 因为圆柱的侧面展开图是一个边长为2的正方形， 所以22r π=，2h =， 所以12,h r ==π，所以圆柱的体积为22r h ⋅=ππ.故选：D.9．已知()f x 是R 上的奇函数，且当0x >时，()2=-af x x x，若()()201f f +=，则()6f -=（ ）A ．4-B ．7-C ．11-D ．15-【答案】C【分析】由奇函数性质有(0)0f =，结合已知条件及函数解析式求参数a ，再利用奇函数性质求(6)f -的值.【详解】由题设，(0)0f =则()2412af =-=，故6a =， 所以0x >时，6()2f x x x=-， 则(6)(6)(121)11f f -=-=--=-. 故选：C10．已知线段MN 是圆()22:18C x y -+=的一条动弦，且23MN =，若点P 为直线260x y -+=上的任意一点，则PM PN +的最小值为（ ）A ．8525- B ．855C ．6525- D ．655【答案】D【分析】过圆心C 作CD MN ⊥，将问题转化为min PD ，结合点到直线距离公式来进行求解.【详解】圆22:(1)8C x y -+=的圆心为()1,0C ，半径为22r =，P 为直线260x y -+=上的任意一点，过C 作CD MN ⊥，垂足为D ，则D 是MN 的中点.由23MN =||5CD =min min ||5C PDP ∴=-，则min2063555PD-+=||2||PM PN PD +=， ||PM PN ∴+65故选：D.11．已知数列{}n a 的首项是11a =，前n 项和为n S ，且1231n n S S n +=++（*N n ∈），设()2log 3n n c a =+，若存在常数k ，使不等式()116n nc k n c -≥+（*N n ∈）恒成立，则k 的最小值为（ ） A ．19B ．116C ．125D ．136【答案】C【分析】根据数列的递推式可得到123n n a a +=+，构造等比数列求出123n n a +=-，继而求出n c ，再利用基本不等式求得()116n n c n c -+的最大值，则可得答案.【详解】当2n ≥ 时，由1231n n S S n +=++可得-123-2n n S S n =+， 两式相减得：123n n a a +=+ ，即132(3)n n a a ++=+，而134a +=，2121224,5a a S S a +==+=，故2132(3)a a +=+ ， 所以{3}n a + 是以134a +=为首项，2q为公比的等比数列，则11342,23n n n n a a -++=⨯=- ，故()122log 3log 21n n n c a n +=+==+，所以()111616(16)(1)17n n c n n c n n n n-==+++++， 而16N ,8n n n*∈+≥ ，当且仅当4n = 时取等号， 故()11116162517n n c n c n n-=≤+++，当且仅当4n = 时取等号， 所以若存在常数k ，使不等式()116n nc k n c -≥+（*N n ∈）恒成立，则k 的最小值为125， 故选：C12．已知1F ，2F 分别是双曲线E ：22221x y a b -=（0a >，0b >）的左､右焦点，直线y kx=与E 交于A ，B 两点，且1260F AF ∠=︒，四边形12F AF B 的周长C 与面积S满足2C =，则E 的渐近线方程是（ ） A．y x = B．y x = C．y = D．y =【答案】C【分析】不妨设(),AF m AF n m n ==>12，结合双曲线定义和余弦定理可得()m n c a +=-2221612，再由四边形12F AF B 的周长与面积关系求得,a c 关系，由222c a b =+得出,a b 关系即可求双曲线的渐近线.【详解】不妨设(),AF m AF n m n ==>12，由双曲线的定义可知，2m n a -=，即m n mn a +-=22224①， 又1260F AF ∠=︒，所以由余弦定理可得m n mn c +-=2224②，由②-①可得 2244mn c a =-， 由⨯②2-①可得222284m n c a +=-， 所以()m n c a +=-2221612.由题意可知，四边形12F AF B 为平行四边形，所以四边形12F AF B 的周长()C m n =+=2四边形12F AF B 的面积)S c a =⨯=-2212442.因为2C =，所以)()c a c a -=-22224441612，整理得223c a =，由222c a b =+，得222b a =，即ba=所以E 的渐近线方程是y =. 故选：C.二、填空题13．已知{}n a 是公差为3的等差数列.若1a ，2a ，4a 成等比数列，则{}n a 的前6项和6S =___________.【答案】63【分析】由等比中项的性质及等差数列通项公式求得13a =，进而写出{}n a 通项公式，利用等差数列前n 项和公式求6S .【详解】由题设，2214a a a =，则2111(3)(9)a a a +=+，解得13a =，所以3n a n =，则66(318)632S ⨯+==. 故答案为：6314．已知函数()π2sin 6f x x ω⎛⎫=- ⎪⎝⎭的最小正周期为π，则函数()y f x =在区间π0,3⎡⎤⎢⎥⎣⎦上的最大值与最小值的和是___________. 【答案】1或3-3-或1【分析】由最小正周期可得2ω=±，讨论ω并结合正弦函数的性质求()f x 的值域，即可求最大值与最小值的和. 【详解】由题设，2||T ππω==，则2ω=±，在π0,3⎡⎤⎢⎥⎣⎦上，当2ω=则2[,]662x πππ-∈-，故()[1,2]f x ∈-；当2ω=-则52[,]666x πππ--∈--，故()[2,1]f x ∈--；综上，最大值与最小值的和为1或3-. 故答案为：1或3-15．某三棱锥的三视图如图所示，则该三棱锥的体积为___________.【答案】16【详解】首先将三视图的直观图放入长方体里，再计算其体积即可. 【点睛】将三棱锥V ABC -放入长方体中，如图所示：121222ABC S ==，三棱锥的体积1111326V =⨯⨯=.故答案为：1616．已知函数()333sin x x x f x =+-，若对任意的()0,x ∈+∞，不等式()()ln 20f x f ax -+≤恒成立，则实数a 的取值范围为___________. 【答案】31,e ⎛⎤-∞ ⎥⎝⎦-【分析】利用函数奇偶性的定义可判断()f x 为奇函数，由导数判断()f x 为R 上的增函数，则所求不等式等价于ln 2x ax -≤-，分离参数可得ln 2x a x--≥，构造函数ln 2()x g x x-=(0)x >，利用导数求()g x 的最大值即可求解.【详解】因为()()()()()()3333sin 33sin f x x x x x x x f x -=-+---=-+-=-，所以()f x 为奇函数，因为()()22333cos 331cos 0x x x x f x '=+-=+-≥，所以()f x 为R 上的增函数，由(ln 2)()0f x f ax -+≤得(ln 2)()()f x f ax f ax -≤-=-，则ln 2x ax -≤-， 因为,()0x ∈+∞，所以ln 2x a x--≥． 令ln 2()(0)x g x x x-=>，则()23ln xg x x -'=，令()0g x '=，得3e x =， 当30e x <<时，()0g x '>，()g x 单调递增， 当3e x >时，()0g x '<，()g x 单调递减，故()()33max 1e e g x g ==，所以31e a -≥，即31ea ≤-， 所以实数a 的取值范围为31,e ⎛⎤-∞- ⎥⎝⎦.故答案为：31,e ⎛⎤-∞- ⎥⎝⎦三、解答题17．在ABC 中，角,,A B C 所对的边分别为,,a b c cos sin C c B =. (1)求角C ；(2)若2b =，ABC 的面积为c . 【答案】(1)3C π=(2)c =【分析】（1cos sin sin B C C B =，进而得tan C =求解即可得答案；（2）由面积公式得8ab =，进而根据题意得2b =，4a =，再根据余弦定理求解即可.【详解】(1)cos sin C c B =，cos sin sin B C C B =， 因为()0,,sin 0B B π∈≠，sin C C =，即tan C =因为()0,C π∈，所以3C π=.(2)解：因为ABC 的面积为23，3C π=，所以13sin 2324S ab C ab ===，即8ab =， 因为2b =，所以4a =，所以2222201cos 2162a b c c C ab +--===，解得23c =.所以23c =.18．如图，四面体ABCD 中，O 、E 分别是BD 、BC 的中点，2, 2.CA CB CD BD AB AD ======（Ⅰ）求证：AO ⊥平面BCD ； （Ⅱ）求点E 到平面ACD 的距离. 【答案】（Ⅰ）详见解析 （Ⅱ21【详解】试题分析：（Ⅰ）要证明AO ⊥平面BCD ，需要证明AO OC ⊥，AO BD ⊥，证明时主要是利用已知条件中的线段长度满足勾股定理和等腰三角形三线合一的性质（Ⅱ）中由已知条件空间直角坐标系容易建立，因此可采用空间向量求解，以O 为坐标原点，以,,OB OC OA 方向为x 轴，y 轴，z 轴正方向建立空间直角坐标系，求出平面ACD 的法向量(3,1,3)n =--和斜线的方向向量13(2EC =-，代入公式EC n d n⋅=计算试题解析：（Ⅰ）证明：,AB AD O =为BD 的中点，AO BD ∴⊥，2AD =,1OD =，1AO ∴=，2,3CB CD BD OC ===∴=又2,CA =222CA OA OC ∴=+，AO OC ∴⊥，BD OC O ⋂=，,BD OC 均在平面BCD 内，AO ∴⊥平面BCD（Ⅱ）方法一：以O 为坐标原点，以,,OB OC OA 方向为x 轴，y 轴，z 轴正方向建立空间直角坐标系，则13(0,0,1),(1,0,0),3,0),(1,0,0),(2A B C D E -，(0,3,1),(1,3,0)AC CD =-=--设n 为平面ACD 的法向量，则n AC ⊥，n CD ⊥ 30,{30,y z x y -=∴+=取n (3,1,3)=--，13(,,0)22EC =-，则点E 到平面ACD 的距离为32177EC n d n⋅===方法二：设点H 在CD 上，且14DH DC =，连AH ， 2,CB CD DB ===O 为BD 的中点，OH CD ∴⊥AO ⊥平面BCD ，CD ⊂平面BCD ，,AO CD ∴⊥,,AO OH O AO OH ⋂=⊂平面AOH ，CD平面AOHCD ⊂平面ACD ，∴平面AOH ⊥平面ACD ，且交线为AH过点O 作OP AH ⊥于点P ，则OP ∴⊥平面ACD,O E 分别为,BD BC 的中点，则//,OE CD OE ⊄平面ACD ，CD ⊂平面ACD ，//OE ∴平面ACD ，E ∴点到平面ACD 的距离即OP ，31372121,,,22772AO OH AO OH AH OP AH⨯⋅===∴===故点E 到平面ACD 的距离为217【解析】1.线面垂直的判定；2.点到面的距离19．为了了解某工厂生产的产品情况，从该工厂生产的产品随机抽取了一个容量为20的样本，测量它们的尺寸（单位：mm ），数据分为[)92,94，[)94,96，[)96,98，[)98,100，[)100,102，[)102,104，[]104,106七组，其频率分布直方图如图所示.(1)求上图中的x 值；(2)根据频率分布直方图，求200件样本尺寸在[)98,100内的样本数；(3)记产品尺寸在[)98,102内为A 等品，每件可获利5元；产品尺寸在[)92,94内为不合格品，每件亏损2元；其余的为合格品，每件可获利3元.若该机器一个月共生产3000件产品.以样本的频率代替总体在各组的频率，若单月利润未能达到11000元，则需要对该工厂设备实施升级改造.试判断是否需要对该工厂设备实施升级改造. 【答案】(1)0.12x =； (2)36（件）；(3)需要对该工厂设备实施升级改造.【分析】（1）根据频率分布直方图中所有小矩形的面积之和为1进行求解即可； （2）根据频率分布直方图中的数据进行求解即可；（3）根据题意，结合频率分布直方图中的数据求出单月利润，最后比较大小即可. 【详解】(1)因为()0.020.040.060.070.090.1021x ++++++⨯=， 解得0.12x =；(2)200件样本中尺寸在[)98,100内的样本数为2000.09236⨯⨯=（件） (3)由题意可得，这批产品中优等品有()30000.180.201140⨯+=（件）， 这批产品中不合格品有30000.04120⨯=件，这批产品中合格品有300011401201740--=300011401201740--=（件），1140517403120210680⨯+⨯-⨯=元.所以该工厂生产的产品一个月所获得的利润为10680元， 因为1068011000<，所以需要对该工厂设备实施升级改造.20．已知椭圆C ：22221x y a b +=（0a b >>）过点P ⎛ ⎝⎭，1F ､2F 分别为椭圆C 的左､右焦点，且焦距为(1)求椭圆C 的方程；(2)过椭圆左顶点A 的直线l 与椭圆C 交于另一点B （B 点在第二象限），AB 的垂直平分线交y 轴负半轴于E 点，D 为椭圆右顶点.设直线BD 的斜率为1k ，直线DE 的斜率为2k ，且满足12320k k =-，求直线l 的方程. 【答案】(1)2214x y +=(2)20x y -+=【分析】（1）利用椭圆的焦距求出c 的值，然后将P 的坐标代入椭圆方程，求得,a b 的值，即可得出椭圆C 的方程.（2）设直线AB 的方程为2x my =-，将此直线方程与椭圆的方程联立，求出点B 的坐标，求出线段AB 的中垂线方程，可求得点E 的坐标，由12320k k =-，求出m 的值，即可得出直线l 的方程【详解】(1)设椭圆C 的焦距为2c （0c >），则()1,0F c -､()2,0F c，c =由已知可得a ba b ⎧+=⎪⎨⎪-=⎩222213143,解得2,1a b ==， 所以椭圆C 的方程为2214x y +=；(2)设直线AB 的方程为2x my =-（0m >），设点()11,B x y ，联立x my x y =-⎧⎨+=⎩22244，可得()22440m y my +-=，故1244m y m =+，即点222284,44m m B m m ⎛⎫- ⎪++⎝⎭， 所以m m m m ⎧-<⎪⎪+⎨⎪>⎪+⎩2222804404，解得02m <<，因为点()2,0A -，所以，线段AB 的中点为2282,44m M m m ⎛⎫- ⎪++⎝⎭，因为点()2,0D ，21224428424m mm k m m +==---+，线段AB 的中垂线方程为222826444m m y m x mx m m m ⎛⎫=-++=-- ⎪+++⎝⎭，在直线方程264m y mx m =--+中，令0x =，可得264my m =-+，即点260,4m E m ⎛⎫- ⎪+⎝⎭，22263424m m m k m +==+， 所以，满足12320k k =-，有2334420m m m -⋅=-+， 可得2254m m =+，解得1m =，因此，直线l 的方程为2x y =-，即20x y -+=.21．已知函数()e xf x ax =-.(1)若1a =，求函数()f x 的单调区间及()f x 在1x =处的切线方程；(2)设函数()()222g x f x x a =--，若0a ≥时，()0g x ≥恒成立，求实数a 的取值范围.【答案】(1)在(),0∞-上单调递减，在()0,∞+上单调递增，切线方程为()e 1y x =-(2)2ln2a ≤-【分析】（1）求出函数的导数，判断导数的正负，可得函数的单调区间；根据导数的几何意义求得切线方程；（2）求函数的导数，判断导数的正负，确定函数的最值，将0a ≥时，()0g x ≥恒成立的问题转化为求函数的最小值问题，分类讨论函数的最小值情况，构造函数利用导数求得参数的取值范围.【详解】(1)1a =时，()()e ,e 1x xf x ax f x '=-=-由()e 10x f x '=->有0x >，由()e 10xf x '=-<有0x <，所以，()f x 在(),0∞-上单调递减，在()0,∞+上单调递增, 又()1e 1f =-，所以切点为()1,e 1-，切线斜率()1e 1k f '==-. 所以切线方程()()()e 1e 11y x --=--， 即切线方程为()e 1y x =-;(2)()()222222e 2x g x f x x a ax x a =--=---，()2e 22x g x x a ='--,设()2(2)e 2x g x x a x ϕ=--'= ，则()2e 2xx ϕ'=-()()0,2e 20,x x x g x ϕ'≥∴-≥'=在[)0,∞+上单调递增，()()min ()02221,g x g a a ==-=-''当10a -≥，即1a ≤时，()min ()210g x a '=-≥，()g x 在[)0,∞+上单调递增，则2min ()20,g x a a =-≥1a ≤. 当10a -<，即1a >时，()min ()210g x a '=-<，()00000,2e 220x x g x x a ∃>=--='，即00e xa x =-或00e x a x =+，00x x <<时，()()0,g x g x '<在()00,x 上单调递减， 0x x >时，()()0,g x g x '>在()0,x +∞上单调递增，则()()()()00000022min 00()2e 2e e e 2e 0,e 2x x x x x x g x g x x a ==-+=-=-≥∴≤，00ln2.x ∴<≤由00e xa x =-，今函数()e x h x x =-，且0ln2x <≤，()()e 10,e x x h x h x x ='-≥=-在(]0,ln2上单调递增，()12ln2h x <≤-，00e (0ln2),12ln2.x a x x a =-<≤∴<≤-综上，实数a 的取值范围是2ln2a ≤-.【点睛】本题综合考查了导数的几何意义和利用导数求函数的单调区间以及用导数解决恒成立问题，综合考查了学生灵活应用导数的知识解决问题的能力，有一定难度，解答的关键时将恒成立问题转化为函数的最值问题时，其中要注意分类讨论，构造函数等方法的运用.22．在直角坐标系xOy 中，已知曲线C 的参数方程为x y ϕϕ⎧=⎪⎨=⎪⎩（ϕ为参数），直线l 0y +-=.以坐标原点O 为极点，x 轴的正半轴为极轴建立极坐标系.（1）求曲线C 和直线l 的极坐标方程；（2）若点(),A x y 在直线l 上，且0y >，射线OA 与曲线C 相交于异于O 点的点B .求OA OB的最小值.【答案】（1）曲线C的极坐标方程为ρθ=，直线l的极坐标方程为cos sin0θρθ+-=；（2）43【分析】（1）首先将曲线C的参数方程转化为普通方程，再根据cossinxyρθρθ=⎧⎨=⎩将直角坐标方程转化为极坐标方程；（2）设点A的极坐标为()1,Aρθ，点B的极坐标为()2,Bρθ，其中23πθ<<，由（1）中的极坐标方程可得OA=inOBθ=，再根据三角恒等变换及正弦函数的性质计算可得；【详解】解：（1）因为曲线C的参数方程为xyϕϕ⎧=⎪⎨=⎪⎩（ϕ为参数），所以(()222212cos sin12x yϕϕ+-=+=，即220x y+-=，因为cossinxyρθρθ=⎧⎨=⎩，所以2sin0ρθ-=，所以曲线C的极坐标方程为ρθ=因为直线ly+-=，所以直线l的极坐标方程为cos sin0θρθ+-=（2）设点A的极坐标为()1,Aρθ，点B的极坐标为()2,Bρθ，其中23πθ<<，由（1）知1OAρ=，2OBρθ==，所以42sin216OAOBπθ==⎛⎫-+⎪⎝⎭因为23πθ<<，所以72666πππθ-<-<，所以1sin2126πθ⎛⎫-<-≤⎪⎝⎭，12sin226πθ⎛⎫-<-≤⎪⎝⎭所以当sin216πθ⎛⎫-=⎪⎝⎭，即3πθ=时，min43OAOB⎛⎫=⎪⎪⎝⎭23．已知12f x x x的最小值为M.(1)解关于x的不等式()1f x M x<+-；(2)若正实数a ，b 满足42M a b+=，求12a b +取最小值时a b -的值. 【答案】(1)(5,1)-； (2)6.【分析】（1）由绝对值的几何意义求M ，再应用公式法求不等式的解集.（2）由（1）可得2312a b +=，应用基本不等式“1”的代换求12a b +的最小值，并确定对应参数a 、b 的值，即可求a b -.【详解】(1)由绝对值几何意义知：()123f x x x =-++≥，当21x -≤≤时等号成立， ∴3M =，由()131f x M x x <+-=+-，可得|2|3x +<，解得51x -<<， ∴不等式解集为(5,1)-.(2)由（1）及题设知：2312a b+=，∴24312(12)()2020322232b a a b a b a b a b +=+=++++≥，当且仅当48a b ==时等号成立， ∴6a b -=.。

一、单选题1. 已知实数a，b 满足（其中为虚数单位），则复数的共轭复数为（）A．B．C．D．2. 某人一周的总开支如图所示，这周的食品开支如图所示，则他这周的肉类开支占总开支的百分比为（）A．B．C．D．3. 设，，，都是不等于1的正数，函数在同一直角坐标系中的图象如图所示，则，，，的大小关系是（）A．B．C．D．4. 已知，则（）A．B．－1C．D．5. 根据下表中数据求得的线性回归方程是，则（）x456789y908483807568A．98B．107C．110D．1066. 已知四面体外接球的球心与正三角形外接圆的圆心重合，若该四面体体积的最大值为，则该四面体外接球的体积为（）A．B．C．D．7. 已知函数，实数，满足不等式，则下列不等式成立的是（）A．B．C．D．8.已知在上连续可导，为其导函数，且，则A．B．C．0D．吉林省(东北师大附中,长春十一高中,吉林一中,四平一中,松原实验中学)五校2023届高三上学期联吉林省(东北师大附中,长春十一高中,吉林一中,四平一中,松原实验中学)五校2023届高三上学期联二、多选题三、填空题四、解答题9. 函数的部分图象如图所示，则下列说法中正确的是（）A．B．的图象向右平移个单位长度后得到的新函数是偶函数C．的图象向右平移个单位长度后得到的新函数是奇函数D ．若方程在上有且只有6个根，则10. 函数与的定义域为，且.若的图像关于点对称.则（ ）A．的图像关于直线对称B．C．的一个周期为4D ．的图像关于点对称11.已知数列满足，，前n 项和为，则（ ）A．B．C．D．12. 如图，边长为2的正方形ABCD 中，E ，F 分别是AB ，BC 的中点，将，，分别沿DE ，DF ，EF 折起，使A ，B ，C 重合于点P ，则下列结论正确的是（）A．B ．三棱锥的外接球的体积为C ．点P 到平面DEF的距离为D ．二面角的余弦值为13.已知四面体中，，，为等边三角形，且平面平面，则四面体外接球的表面积为______.14.设且，则的最小值是______．15. 某个品种的小麦麦穗长度（单位：cm ）的样本数据如下：10.2、9.7、10.8、9.1、8.9、8.6、9.8、9.6、9.9、11.2、10.6、11.7，则这组数据的第80百分位数为______.16.如图，在直三棱柱中，，，，是线段上一点．（1）设，求异面直线与所成角的余弦值；（2）若平面，求二面角的正切值．17. 在中，底边上的中线，若动点满足.（1）求的最大值；（2）若为等腰三角形，且，点满足（1）的情况下，求的值.18. 某学生在上学路上要经过4个路口，假设在各路口是否遇到红灯是相互独立的，遇到红灯的概率都是，遇到红灯时停留的时间都是2min.（Ⅰ）求这名学生在上学路上到第三个路口时首次遇到红灯的概率；（Ⅱ）求这名学生在上学路上因遇到红灯停留的总时间的分布列及期望.19. 为了解温度对物质参与的某种化学反应的影响，研究小组在不同温度条件下做了四次实验，实验中测得的温度（单位：）与的转化率（转化率）的数据如下表所示：4555657523386574(1)求与的相关系数（结果精确到0.01）；(2)该研究小组随后又进行了一次该实验，其中的起始量为，反应结束时还剩余，若已知关于的线性回归方程为，估计这次实验是在多少摄氏度的温度条件下进行的.（结果精确到0.1）.参考数据：.参考公式：相关系数20. 在中，角所对的边分别为.(1)证明；(2)若，求的面积.21. 已知是实数，1和是函数的两个极值点．（Ⅰ）求和的值；（Ⅱ）设函数的导函数，求的极值点；（Ⅲ）设，其中，求函数的零点个数．。

2024届东北师范大学附属中学、重庆市第一中学、吉林大学附属中学、长春市第十一高中物理高三第一学期期中综合测试试题考生须知：1．全卷分选择题和非选择题两部分，全部在答题纸上作答。

选择题必须用2B铅笔填涂；非选择题的答案必须用黑色字迹的钢笔或答字笔写在“答题纸”相应位置上。

2．请用黑色字迹的钢笔或答字笔在“答题纸”上先填写姓名和准考证号。

3．保持卡面清洁，不要折叠，不要弄破、弄皱，在草稿纸、试题卷上答题无效。

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、将一物体由坐标原点O以初速度v0抛出，在恒力作用下轨迹如图所示，A为轨迹最高点，B为轨迹与水平x轴交点，假设物体到B点时速度为v B，v0与x轴夹角为α，v B 与x轴夹角为β，已知OA水平距离x1小于AB水平距离x2，则（）A．物体从O到A时间大于从A到B时间B．物体在B点的速度v B大于v0C．物体在O点所受合力方向指向第一象限D．α可能等于β2、一轮船以船头指向始终垂直于河岸方向以一定的速度向对岸行驶，水匀速流动，则关于轮船通过的路程、渡河经历的时间与水流速度的关系，下列说法中正确的是（）A．水流速度越大，路程越长，时间越长B．水流速度越大，路程越短，时间越短C．水流速度越大，路程越长，时间不变D．路程和时间都与水流速度无关3、如图，在“探究共点力合成”实验中，用弹簧测力计拉细绳套时要做到（）A ．细绳间的夹角始终为90°B ．细绳间的夹角不可以是钝角C ．两个弹簧测力计的读数必须相同D ．橡皮条、细绳和弹簧测力计应贴近并平行于木板4、如图所示，A 、B 是绕地球做圆周运动的两颗卫星，A 、B 两卫星与地心的连线在相等时间内扫过的面积之比为k ：1，则A 、B 两卫星的周期的比值为( )A ．k 23B ．kC ．k 2D ．k 35、将一根轻质弹簧上端固定，下端悬挂一质量为m 的物体，物体静止时，弹簧长度为L 1；而当弹簧下端固定在水平地面上，将质量为m 的物体压在其上端，物体静止时，弹簧长度为L 2。

东北师大附中、长春市十一高中、吉林一中、四平一中、松原实验中学2022届届高三联合模拟考试英语科试题注意事项:1. 答卷前,考生务必将自己的姓名、准考证号填写在答题卡上.2. 回答选择题时,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. 回答非选择题时,将答案写在答题卡上,写在本试卷无效.3. 考试结束后,将本试卷和答题卡一并交回.第一部分听力（共两节,满分30分）做题时,先将答案标在试卷上. 录音内容结束后,你将有两分钟的时间将试卷上的答案转涂到答题卡上.第一节（共5小题；每小题1. 5分,满分7. 5分）听下面5段对话. 每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项. 听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题. 每段对话仅读一遍.1. How will the guests go to the airport?A. By car.B. By taxi.C. By bus.2. How many nights will the man stay if his wife comes?A. 4.B. 6.C. 8.3. Who is in charge of the project?A. Dan.B. Gary.C. Mary.4. What does the man say about the restaurant?A. The waiters were noisy.B. The food was not his thing.C. The atmosphere was friendly.5. What language does Mr. Black speak best?A. Chinese.B. Spanish.C. French.第二节（共15小题；每小题1. 5分,满分22. 5分）听下面5段对话或独白. 每段对话或独白后有几个小题,从题中所给的A、B、C三个选项中选出最佳选项. 听每段对话或独白前,你将有时间阅读各个小题,每小题5秒钟；听完后,各小题将给出5秒钟的作答时间. 每段对话或独白读两遍.听第6段材料,回答第6、7题.6. What will the speakers have to do?A. Send figures to Mr. Jones.B. Draw up the budget for the next year.C. Organize an advertising campaign.7. What does the woman ask the man to do?A. Wait for her in his office.B. Go to Mr. Jones’ workplace.C. Make a phone call to Mr. Jones. 听第7段材料,回答第8至10题.8. What is John doing?A. Doing a fun project.B. Emptying the cupboard.C. Donating unwanted things.9. What is "free-cycling"?A. Away of recycling.B. A kind of old junk.C. A travel website.10. What does John want now?A. A gorilla arm.B. A microphone.C. A bicycle.听第8段材料,回答第11至13题.11. What are the speakers discussing?A. The man’s job.B. The man’s house.C. The effects of global warming.12. What is always nice according to the man?A. That he lives by the sea.B. That animals can get more food.C. That green can be seen all year round.13. What could farmers grow before?A. Grass.B. Vegetables.C. Trees.听第9段材料,回答第14至16题.14. Where does the man most probably work?A. At an airport.B. At a hotel.C. At a travel agency.15. Which airport is the best choice for the woman?A. Reagan National.B. Dulles.C. Baltimore-Washington.16. Why is the woman going to Washington DC?A. To visit a friend.B. To meet the man.C. To go sightseeing.听第10段材料,回答第17至20题.17. What does the speaker usually do on most weekends?A. Read the newspaper.B. Go to a movie.C. Play with his friends.18. How does the speaker know about a movie?A. By talking with his friends.B. By checking the film reviews.C. By arriving early at the movie theater.19. What might the speaker do if the tickets are sold out?A. Arrive early at the theater.B. Buy popcorn and a drink.C. Buy a ticket for the next show.20. What does the speaker like to do while watching a movie?A. Eat popcorn.B. Talk to others.C. Put his feet up.第二部分阅读理解（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和D四个选项中,选出最佳选项.AWhat makes a sports event a winner? Exciting action? Tick. Athletes competing to win honour and glory for their club or motherland? Tick. History and tradition? Tick. Delicious snacks? Tick. Most people think global events such as the Olympic Games and the World Cup are the most exciting, but there is some serious competition. Here’s a look at some of the hottest tickets in sports.The World SeriesThe World Series is the final championship of the American baseball leagues. The seven-game series is played in October or November and attracts a great number of fans. Baseball is one of America’s favourite sports and has manytraditions, such as the "seventh-inning stretch （七局伸展操）". The song "Take Me Out to the Ball Game" is played so that everyone can get up after sitting for a long time. The break is also a good time for a snack. Hot peanuts are a hit with hungry baseball fans, but the hot dog is the real winner!Indian Premier LeagueCricket is from England but has become as Indian as saris and curry. The Indian Premier League has the largest audience of all cricket leagues in the world and is the sixth most-watched sports league in the world. Cricket is a unique sport and may seem a little confusing at first, but once you start learning the rules, you’ll love it. The most popular cricket snacks are finger foods like biscuits and cucumber sandwiches.WimbledonWimbledon is a treat for all tennis fans. The tournament started in 1877 and many of the rules are the same today. For example, the players may only wear white clothes. The event, however, is quite colourful since fans often dress up for the games and wear amazing hats. And when it comes to snacks, it’s "game, set, and match" at Wimbledon. Where else can you enjoy champagne and strawberries as you cheer for the champion?21. According to the text, which of the following is NOT an attraction of the sports events?A. History and tradition.B. Competing athletes.C. Prize money.D. Exciting action.22. What is the most popular snacks for fans of the World Series?A. Hot peanuts.B. Hot dogs.C. Strawberries.D. Cucumber sandwiches.23. Which event has a strict clothing requirement for players?A. WimbledonB. The World SeriesC. Indian Premier LeagueD. None of the aboveBIn April 2008, I came across an essay a boy with autism （自闭症）had written when he was 14. I was impressed.I thought there was potential for a documentary. The director agreed. "Find the boy!" he said. A couple of months later, I found him, Anton. So it began — a film about Anton’s transformation. At least, that’s what I thought at the time.During filming, I helped put him into different hospitals and camps for treatment and we became close. There were lots of unforgettable moments. I remember one visit when we sat together, talking quietly and eating food I’d made. Then it was time for me to go. Without saying a word, Anton stood up and started to bang his head against the wall. BAM. BAM. Blood streamed down his face. At that moment, looking at the despair on Anton’s face, I recognized myself. What I recognized was an emotional abundance in him that I had myself. Like Anton, I was over the top. If I loved someone, I loved them completely. If I was upset, I let it show. But unlike Anton, I’d learned to edit emotions as if they were a film. But lately, I was waking up in the morning with one terrifying thought: "Who am I?" Anton helped me to answer this. He was the only person in my life who let me love without any holding back and who loved me the same way.The film Anton’s Right Here was released in October 2012 and shown at film festivals in Russia where it received prizes at several major Russian film festivals.After the film was shown by the First TV Channel — Russia’s main TV channel — letters flowed in. Autistic individuals and their families needed help. That’s when the idea of a foundation began to take shape in my mind. The foundation, called Anton’s Right Here, officially opened in December 2013. It’s Russia’s first-ever centre for adults with autism. It keeps helping people with autism like Anton.When we started to film, Anton was 19. He’s now 31. I’m still very much a part of his life. With his unedited emotions, Anton reminds me every day of what it’s like to be really, unreservedly loved and to love back in return.24. Why did the writer want to find Anton?A. She intended to make a film about Anton.B. She saw Anton’s potential to be a writer.C. She wanted to transform Anton’s life.D. She was asked to do so by the director.25. Why did Anton hurt himself during a visit?A. He was lost for words.B. His condition was getting worse.C. He tended to lose his temper for no reason.D. He did not want the writer to leave.26. What do we know about the documentary from the passage?A. It took 5 years to shoot.B. It aroused little social concern.C. A foundation of the same name was established by Anton.D. Shooting it made a difference to the writer’s life.27. What lesson did the writer learn from Anton?A. How to deal with autism.B. How to edit her emotions.C. How to love and be loved.D. How to live life to the fullest.CThe Royal Botanical Gardens, Kew, in the UK, are home to thousands of fascinating plants, but none are as lonely as the Encephalartos woodii, an ancient cycad （苏铁门植物）species and, most likely, the last one of its kind.It was in 1895 that botanist John Wood noticed this interesting looking palm tree on a steep slope in southern Africa. Spellbound by its multiple trunks and arched palm fronds （苏铁类植物的叶）, Dr. Wood —who made his living collecting rare plants — had some stems removed and sent to London in a box. It ended up in the Palm House at the Royal Botanical Gardens, where it has been waiting for a mate for over a century. Despite numerous efforts to find it a mate, the Encephalartos woodii at Kew remains alone, unable to produce an offspring （后代）and reproduce its species. For this reason, many consider it the world’s loneliest plant.Two hundred million years ago, when dinosaurs still roamed the world, cycads were everywhere. They made up around 20% of plants, acted as shelter for some dinosaur species and as food supply for others. They managed to somehow survive five ice ages, adapted to coexist with new species of plants, but as time passed, their numbers dwindled. Like all other cycads, Encephalartos woodii went from numbering millions of specimens, to thousands, and today, possibly just one, a male.Some plants have both male and female organs, but not Encephalartos woodii. Without a female specimen to produce the seeds, it can never mate.The Encephalartos woodii is technically not the last of its kind. It has been cloned several times, and its clones can be found in several botanical gardens around the world. It can even mate with some closely related species, but it can’t produce a true offspring. It just sits there, the last of its ancient species waiting for a female species to be found somewhere on Earth. "Surely this is the loneliest organism in the world," biologist Richard Fortey once wrote, "growing older, alone, and fated to have no successors. Nobody knows how long it will live. "28. What can we learn about the Encephalartos woodii?A. It has been the last of its species for centuries.B. It once was a common being with male and female organs.C. Scientists’ efforts to produce any young of it were in vain.D. It used to play an important role in the survival of dinosaurs.29. What does the underlined word "dwindled" probably mean in paragraph 3?A. Weakened.B. Declined.C. Multiplied.D. Rocketed.30. Which of the following best describes Richard Fortey’s attitude to the plant?A. Indifferent.B. Appreciative.C. Sympathetic.D. Tolerant.31. What is the best title for this text?A. The World’s Loneliest PlantB. The Last Cycad on EarthC. The Plant That Outlived DinosaursD. The Ancient Cycad found by John WoodDA patient of mine, a bright young man, had dropped out of college. Living with his parents, he was considering suicide （自杀）besides playing videogames from day to night. Twenty years ago, I would have prescribed an antidepressant （抗抑郁药）, while today, I recommended something different to him: a dopamine fast （多巴胺戒断）. I suggested he give up all screens, including videogames, for one month.When people do something they enjoy, the brain releases a little bit of dopamine and they feel good. But one of the most important discoveries in the field of neuroscience in the past 75 years is that pleasure and pain are processed in the same parts of the brain and that the brain tries hard to keep them in balance. Whenever it tips in one direction it will try hard to restore the balance, according to neuroscientists, by tipping in the other.Instantly dopamine is released, the brain adapts to it by reducing the number of dopamine receptors （受体）, causing the brain to level out by tipping to the side of pain, which is why pleasure is usually followed by feeling down. Our brains evolved this balance over millions of years when pleasures were scarce and dangers ever-present. The problem today is that we no longer live in that world but a world of overwhelming abundance. Yet increased access to addictive substances or activities has made us more miserable than ever before. Rates of depression, anxiety, and suicide are increasing all over the world, especially in rich nations.It’s only after we’ve taken a break from the addiction that we’re able to see the true impact of our consumption on our lives. That’s why I asked my patient to give up videogames for a month, enough time to allow his brain to reset its dopamine balance. If we can keep reducing phone use long enough, the benefits of a healthier dopamine balance are worth it.32. What is the discovery in paragraph 2 about?A. The function of dopamine.B. The brain’s ability to balance pleasure and pain.C. The disadvantages of playing videogames.D. The psychological problems in rich countries.33. What can be inferred from paragraph 3?A. Dopamine is released when people are down.B. More depression occurs in the modern world.C. Rich nations have more suicide cases than poor ones.D. People have less access to pleasures today than in the past.34. Why did the writer advise the young man to give up his videogames?A. To help him regain the dopamine balance.B. To rid him of the bad habit of consumption.C. To prevent killing himself again.D. To guide him to the true meaning of life.35. What can we say about the writer?A. He thinks medicine is useless.B. He acts as a social worker.C. He specializes in treating mental illnesses.D. He suffers from phone addiction.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. 选项中有两项为多余选项.Peer PressureThe phrase, "everybody’s doing it," is very much at the center of the concept of peer pressure. 36 , and so it is hardly surprising that some of their self-worth comes from the approval of others. This instinct （天性）is a powerful force in many people’s lives.Peer InfluenceA student whose friends excel in academics may be forced to study harder and get good grades. Study groups, class projects, and even book clubs are examples of positive peer groups that encourage people to better themselves. While for certain individuals, seeking social acceptance is so important that it becomes like an addiction. 37 . Groups of children may join in bullying newcomers in school.38Schools and other organizations try to teach kids about the dangers of negative peer pressure. They teach kids to stand up and be themselves, and encourage them to decline to do things that they believe are wrong. Likewise, it can be helpful to encourage children to embrace the beneficial influence of positive peer groups.Active Parenting39 . Parents can take a number of steps, including working to build closer relationships with their children, getting to know both the children’s friends and the parents of those friends, knowing who they’re with, and providing structure and discipline at home.Self-AwarenessBeing self-aware is at the root of managing this type of pressure. 40 . "Going with the flow," so to speak, is not always a bad thing, but as each individual is still responsible for the consequences, it is important to be a thinking participant in the decision.A. Valuing Being OneselfB. Battling Negative PressureC. People are social creatures by natureD. Parental involvement can help ease harmful peer pressureE. They may go so far as to abandon their sense of right and wrongF. People should consider why they feel drawn to taking a particular actionG. You should work out whether your real motivation is affecting others’decisions第三部分语言知识运用（共两节,满分45分）第一节（共20小题；每小题1. 5分,满分30分）阅读下面短文,从短文后各题所给的A、B、C和D四个选项中,选出可以填入空白处的最佳选项.I live in a poor small town. I get along well with my neighbours.Years back I returned home to find my house 41 . Knowing all my neighbours, I found it not a（n）42 thing to figure out who did it. I spoke with the 43 , and when I made my suspicion known, they rolled their eyes. "He’s got a 44 already," they told me. "If you send Jared to court, he will stay in juvenile detention （少管所）45 he’s 21. "I asked the police to 46 until I could speak with Jared. When our eyes met, I could see he was 47 . "It’s OK. Let’s take a walk," I said. I asked 48 he had invaded my home. "Stupid mistake," he said."If I take you to court, you’ll stay in the youth center for six years."Jared showed a note of 49 . "Look," I said. "I’ve offered to be your mentor （导师）for one school year. Each week we’ll spend a half-hour on homework and a half-hour talking about anything you like. But you must50 , and you must repay the money you stole." He took the 51 .To Jared’s 52 , he came to me every Friday morning. Precious assignments were done. Slowly but surely, he opened up and we had honest 53 . I learned about his broken family and his lack of meaningful connections with others. He 54 the stolen money. As the 10 months 55 , I reached out to Jared and said, "That’s it. Thank you. ""That’s it?" he 56 in surprise."Yeah," I said." You did two grown-up things during the past 10 months. You 57 , and you finished what you started. I’m proud of you. "I remained 58 in his life for some time thereafter, and in return the neighbourhood 59 from a more civil, responsible Jared who had learned that he could live up to what caring people 60 ."I’m trying to be good," he recently told me. Aren’t we all?41. A. sold B. robbed C. damaged D. furnished42. A. interesting B. strange C. bad D. difficult43. A. police B. neighbours C. kids D. witnesses44. A. problem B. fortune C. record D. result45. A. because B. though C. when D. until46. A. drop in B. take care C. calm down D. hold off47. A. scared B. excited C. sad D. puzzled48. A. when B. how C. why D. whether49. A. relief B. hope C. regret D. anger50. A. stay B. commit C. continue D. explain51. A. offer B. course C. risk D. blame52. A. delight B. surprise C. credit D. advantage53. A. plans B. conversations C. views D. characters54. A. took B. repaid C. showed D. found55. A. ended B. began C. approached D. increased56. A. sighed B. admitted C. added D. repeated57. A. showed up B. got around C. settled down D. came back58. A. silent B. involved C. patient D. trapped59. A. heard B. suffered C. benefited D. recovered60. A. lost B. ordered C. gave D. expected第二节（共10小题；每小题1. 5分,满分15分）阅读下面短文,在空白处填入1个适当的单词或括号内单词的正确形式.After months of expectation, the official mascot of the 2022 Winter Olympic Games — a giant panda-inspired cartoon character — made 61 （it）first public show with cheers at Beijing’s Shougang Ice Hockey Arena.The panda 62 （name）"Bing Dwen Dwen" in Chinese. Bing means "ice" in Chinese, while Dwen Dwen suggests "health and cleverness" — characteristics also 63 （share）by pandas. "Pandas are perhaps the most recognized animal species in China", organizers said."Pandas combine China’s traditional culture and its modern appearance together with winter sports elements in 64 fascinating image that shows our great expectations for the Games. 65 （addition）, it shows that we welcome the world," said Beijing Mayor Chen Jining, who serves 66 an executive president on the organizing committee. "This mascot really takes in 67 （many）elements and characteristics of the Chinese people than the previous one, 68 will be a great ambassador for the country and the 24th Winter Olympics. "The ring of light 69 （surround）the mascot’s face is suggestive of ice and snow tracks, as well as the flowing "ribbons" of the National Speed Skating Oval. The oval is one of the two new competition 70 （site）in downtown Beijing expected to become a landmark of the Games, according to its chief designer Cao Xue.第四部分写作（共两节,满分35分）第一节短文改错（共10小题；每小题1分,满分10分）假定英语课上老师要求同桌之间交换修改作文,请你修改你同桌写的以下作文. 文中共有10处语言错误,每句中最多有两处. 每处错误仅涉及一个单词的增加、删除或修改.增加: 在缺词处加一个漏字符号（∧）,并在其下面写出该加的词.删除: 把多余的词用斜线（\）划掉.修改: 在错的词下划一横线,并在该词下面写出修改后的词.注意: 1. 每处错误及其修改均仅限一词；2. 只允许修改10处,多者（从第11处起）不计分.On the first day of high school, I told that the freshmen would need to take a part in the military training. I felt worrying sick because the sun was too hot in summer day and I would be sunburnt. So there was no way for the freshmen to refuse to participate. The toughly training lasted a week. In the beginning, we stood in the hot sun and moved around the playground. On the following days, we got used to do the training and started to enjoy our time. Now when I think of the military training, I would smile and treat it as an unforgettable memory in your life.第二节书面表达（满分25分）你校将举办英语演讲比赛. 请你以A Hero of Our Times为题写一篇发言稿参赛,内容包括:1. 介绍人物及事迹；2. 分享受到的影响.注意:1. 词数100左右；2. 题目已为你写好.。

松原实验高中2021年三校联合模拟考试 理科综合能力测试长春十一高中东北师大附中 本试卷分第I 卷(选择题)和第II 卷（非选择题）两部分，共l5页。

考试结束后，将本试卷和答题卡一并交回。

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条形码区域内。

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、试题卷上答题无效。

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。

可能用到的相对原子质量：H:1 C:12 N:14 O:16 Fe:56第I 卷二、选择题：本题共8小题，每题6分。

在每小题给出的四个选项中，第14～17题只有一项符合题目要求，第18～21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。

14．两个质量不同的天体构成双星系统，它们以二者连线上的某一点为圆心做匀速圆周运动，下列说法正确的是A ．质量大的天体线速度较大B ．质量小的天体角速度较大C ．两个天体的向心力大小相等D ．若在圆心处放一个质点，它受到的合力为零15．如图所示，将小球从空中的A 点以速度v 水平向右抛出，不计空气阻力，小球刚好擦过竖直档板落在地面上的B 点。

若使小球的落地点位于挡板和B 点之间，下列方法可行的是A ．在A 点将小球以小于v 的速度水平抛出B ．在A 点将小球以大于v 的速度水平抛出C ．在A 点正下方某位置将小球以小于v 的速度水平抛出D ．在A 点正上方某位置将小球以小于v 的速度水平抛出16．将一平行板电容器接到稳压电源上充电，待电容器稳定后第一次保持电容器与电源相连，用外力缓慢将一极板沿电场方向外移动一段距离，这一过程中外力做功W 1；第二次将电容器与电源断开，仍用外力缓慢将一极板沿电场方向外移动相同距离，这一过程中外力做功W 2，则两次相比A ．W 1>W 2B ．W 1<W 2C ．W 1=W 2D ．无法确定17．如图所示，竖直平面内放一直角杆MON ，OM 水平，ON 竖直且光滑，用不可伸长的轻绳相连的两小球A 和B 分别套在OM 和ON 杆上，B 球的质量为2 kg ，在作用于A 球的水平力F 的作用下，A 、B 均处于静止状态，此时OA=0.3 m ，OB=0.4 m ，改变水平力F 的大小，使A 球向右加速运动，已知A 球向右运动0.1m 时速度大小为3m/s ，则在此过程中绳对B 球的拉力所做的功为(取g =10 m/s 2)A ．11 JB ．16 JC ．18 JD ．9 J18．下列关于电场和磁场的说法中，正确的是A ．在静电场中，同一个电荷在电势越高的地方所具有的电势能一定越大B ．两个静止的完全相同的带电金属球之间的电场力一定等于22rkq （k 为静电力常量，q 为小球带电量，r 为球心间距离）C ．若一小段长为L 、通有电流为I 的导体，在匀强磁场中某处受到的磁场力为F ，则该处磁感应强度的大小一定不小于FILD．磁场对通直电导线的安培力方向总与B和I垂直，但B、I之间可以不垂直19．一个质点，在x轴上做直线运动。

五校联考化学科试卷总分值100分，考试时刻100分钟可能用到的相对原子质量：H-1，C-12,O-16，Na-23，S-32，，Fe-56，Cu-64第I卷（选择题共50分）一、选择题（此题共25小题，每题2分，共50分。

在每题给出的四个选项中，只有一项为哪一项符合题目要求的）1．化学来源于生活，也效劳于生活，以下有关生活中的化学表达正确的选项是A．14C可用于文物年代的鉴定，14C与12C互为同素异形体B．高空臭氧层吸收太阳紫外线，爱惜地球生物；低空过量臭氧是污染气体，对人体有害C．光导纤维中所用材料为晶体硅D．NO x、SO2、CO2、颗粒都会致使酸雨2．以下化学用语正确的选项是A．乙烯的结构简式CH2CH2 B．Na2O2中氧元素的化合价为－2C．Cl-的结构示用意： D．乙酸的最简式：CH2O3．氯化铁溶液与氢氧化铁胶体具有的一起性质是A．分散质颗粒直径都在l～100nm 之间 B．能透过半透膜C．加入浓氢氧化钠溶液都产生红褐色沉淀 D．颜色都呈红褐色4．阿伏加德罗常数的值为N A，那么以下说法正确的选项是A．1 mol FeI2与足量氯气反映时转移的电子数为3N AB．1L2mol·L－1 K2S溶液中S2－和HS－的总数为2N AC．标准状况下，的CCl4中含有的CCl4分子数为N AD．50mL18mol·L－1浓硫酸与足量铜微热反映，转移的电子数为5．某溶液中含有以下六种离子：①HCO3-②SO32-③Na+④CO32-⑤NH4+⑥NO3-，向其中加入必然量Na2O2后，溶液中离子浓度大体维持不变的是A．只有⑥ B．④⑥ C．③④⑥ D．①②⑤6．以下说法正确的选项是A. 淀粉和纤维素分子式均为(C6H10O5)n，它们水解的最终产物都是葡萄糖，因此淀粉和纤维素互为同分异构体B. 通过蒸馏法、电渗析法、离子互换法等能够实现海水的淡化C.多糖、蛋白质、油脂均能水解，它们属于天然高分子化合物D.石油的分馏、煤的干馏、煤的气化和液化均属于物理转变7．某有机物的结构如下图，这种有机物不可能具有的性质是①能够与氢气发生加成反映；②能使酸性KMnO4溶液褪色；③能跟NaOH溶液反映；④能发生酯化反映；⑤能发生加聚反映；⑥能发生水解反映A．①④ B．只有⑥ C．只有⑤ D．④⑥8选项实验事实推论A H2O的沸点比H2S的沸点高非金属性：O＞SB 盐酸的酸性比H2SO3的酸性强非金属性：Cl＞SC 钾与水的反应比钠与水的反应更剧烈金属性：Na＞KD HF的热稳定性比HCl的强非金属性： F＞Cl9．以下有关有机物分离提纯或除杂的方式错误的选项是A．溴苯中混有溴，加NaOH溶液洗涤、静置、分液B．除去乙醇中少量乙酸：加入足量生石灰蒸馏C．乙酸乙酯中有乙酸杂质，能够加入饱和Na2CO3溶液，充分反映后静置分液D．乙烯中混有SO2，将其通过盛有酸性KMnO4溶液的洗气瓶，再干燥10．有以下三个反映：①Cl2+FeI2=FeCl2+I2 ②2Fe2++Br2=2Fe3++2Br－③Co2O3+6HCl=2CoCl2+Cl2↑+3H2O以下说法正确的选项是A．①②③中的氧化产物别离是I2、Fe3+、CoCl2B．依照以上方程式能够取得氧化性Cl2>Fe3+>Co2O3C．在③反映中当1molCo2O3参加反映时，2molHCl被氧化D．能够推理取得Cl2+FeBr2=FeCl2+Br211．用无机矿物资源生产部份材料，其产品流程示用意如下。

吉林省东北师大附中、长春十一高中、吉林一中、四平一中、松原实验中学2021届高三地理下学期2月联合模拟考试试题本试卷共47 小题，满分300 分。

考试用时150 分钟.注意事项：1。

答卷前,考生务必将自己的姓名、考生号、考场号和座位号填写在答题卡上.用2B 铅笔将试卷类型填涂在答题卡相应位置上.将条形码横贴在答题卡右上角“条形码粘贴处"。

2. 作答选择题时，选出每小题答案后，用2B 铅笔在答题卡上对应题目选项的答案信息点涂黑;如需改动，用橡皮擦干净后，再选涂其他答案。

答案不能答在试卷上.3。

非选择题必须用黑色字迹的钢笔或签字笔作答，答案必须写在答题卡各题目指定区域内相应位置上；如需改动，先划掉原来的答案，然后再写上新答案；不准使用铅笔和涂改液.不按以上要求作答无效。

4. 考生必须保证答题卡的整洁.考试结束后，将试卷和答题卡一并交回。

第I卷（选择题共140分）一、选择题：本题共35小题,每小题4分，共140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.同一岩层顶部海拔相同点的连线称为构造等高线。

下图为某区域的某岩层构造等高线和地形等高线示意图，其中B处有一落差30米的瀑布，图中地形等高线的等高距是60米，山峰最高点海拔为1030米，完成下题。

1．图中A处坡面径流方向是A．自西北向东南B．自东北向西南C．自东南向西北D．自北向南2．下列叙述正确的是A．图中河流自北向南流B．若D处地下含有煤层，开采时不易发生瓦斯爆炸C．D处地下岩层具有良好的储油构造D．图中河流为地上河3．图中C处该岩层的最大埋藏深度可能是A．468米B．470米C．498米D．500米目前海岸侵蚀现象普遍存在，世界上大多数海岸线处于侵蚀状态，中国海岸侵蚀亦相当普遍.以秦皇岛海岸线为例，近50多年以来，该地海岸线已经有将近67%的岸段遭受到不同程度的侵蚀，给当地社会经济发展造成了显著影响.下图为秦皇岛某处一侵蚀海岸带，完成下题。