上饶县中学2021届高三年级第二次模拟测试
江西省上饶市2021届高三下学期3月第二次高考模拟考试(二模)理综物理答案
PB TB
得 PA
TA TB
P
B
1 3
P
B
…………（1
分）
将 B 状态压强 PB 1.2 104 Pa 代入，得 PA 4 103 Pa ………… （其它合理解法酌情给分）
34. 【物理——选修 3-4】（15 分） （1）（5 分）ABE
…（1 分）
（2）（10 分）解析：
3
(i)由 y 10 sin(5t) cm 可知，质点的振动周期为
联立得 P 7.5w 1 分） （其它合理解法酌情给分）
1
25（20 分）解析：（1）.（5 分）设金属棒 a 刚开始运动时的速度为 v a1 ，
则：
I mava1
（1 分）
感应电动势: E BLva1
（1 分）
回路电流: I E Ra Rb
（1 分）
金属棒 a 受到的安培力: F BIL
…………
0.3s
xSP vt 2.4m
则质点 Q 到波源的距离
…
xSQ 4xSP 9.6m
因此波传播到 Q 点，所需时间
………（1 分） （1 分）
…（1 分）
……
t2
xSQ v
1.2s
（1 分）
所以从 t 0 时开始计时到质点 Q 第一次出于波峰，波源 S 振动的总时间为
t总
1.2s
1T 4
方向有
b v0t
（2 分）
t 0.6s
（1 分）
（2）（4 分）物块沿斜面向下做初速度为零的匀加速运动
mg sin ma （2 分）
l 1 at2 2
两式联立得 l 0.9m
（1 分） （1 分）
江西省上饶市2021届高三下学期第二次高考模拟理综试题及答案
江西省上饶市2021届高三下学期第二次高考模拟理综试题及答案上饶市2021届第二次高考模拟考试理科综合测试卷第I卷（选择题，共126分）一、选择题：（本题共13小题，每小题6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。
）l.下列关于细胞的结构和功能的叙述，正确的是 A．细胞核是DNA和RNA储存和复制的主要场所 B．由RNA和蛋白质组成的核糖体具有特定空间结构C．没有核膜的细胞在积累无机盐离子时，消耗的能量是由线粒体提供的 D．溶酶体能合成水解酶用于分解抗原或衰老的细胞器 2.下列对各种“比值”变化的叙述中不正确的是A．置于蔗糖溶液中的细胞在质壁分离的过程中细胞液浓度，外界溶液浓度的值变大B．对某绿色植物进行遮光处理时，遮光后瞬间叶绿体中NADPH/NADP+的值变大 C．减数分裂中同源染色体分离时，细胞中染色体数目/棱DNA数的值不变 D．红细胞运输氧气功能受损后，组织细胞呼吸作用中CO2释放量／O2吸收量不变 3．下列有关生物变异的叙述，正确的是A．如果没有基因突变，纯种高茎豌豆与矮茎豌豆杂交子代～定不会产生矮茎植株B．基因重组就是指非同源染色体上的非等位基因之间的自由组合 C．某DNA分子中发生了碱基对的增添，但却未发生基因突变 D．染色体之间交换部分片段，属于染色体结构变异 4．为研究赤霉素(GA3)和生长素(IAA)对植物生长的影响，切取菟丝子茎顶端2.5 cm长的部分（茎芽），置于培养渡中无菌培养。
实验分为 A、B、C三组，分别培养至第1、8、15天，每组再用适宜浓度的激素处理30天，测量茎芽长度，结果如图所示。
以下叙述不正确的是A. 两类檄素对离体茎芽伸长生长都表现为促进，其中GA3促进作用更显著B. A组数据出现的原因最可能是离体时间短的茎芽中的内源GA3含量较高 C．由B组可知，GA3单独处理的促进作用是IAA单独处理的5倍D, 由C组可知，两种激素联合处理的促进作用是GA3单独处理的5/3倍5．果蝇的体色有黄身(A)、灰身(a)之分，翅形有长翅(B)，残翅（b)之分。
江西省上饶市2021届高三下学期模拟考试(二模)理科综合试题 含答案
高能高容量，原料丰富，绿色无污染等优点。右图为
简易的高铁电池的工作装置。已知：放电后，两极都产生
红褐色悬浮物。下列说法正确的是
A．该电池放电时的总反应为Fe + FeO42-+ 2H+ + 2H2O =2Fe(OH)3 B．放电时，此盐桥中阴离子的运动方向是从右向左 C．该电池充电时阳极反应的电极反应方程式为 FeO42- + 3e- + 4H2O = 2Fe(OH)3 + 5OH-
衰变，
射线的电离本领大，它在威耳逊云室中的径迹直而清晰
D． 29348Pu 衰变的半衰期会受到阳光、温度、电磁场等环境因素的影响
20．如图所示，游乐场内的水平木板放在水平地面上，木板上
放置一个整理箱。某工作人员在卫生清扫时，站在木板上用斜
向左上方的力拉整理箱，三者均保持静止。木板和工作人员的质
量均为 m，整理箱的质量为 0.3m，重力加速度为 g。下列说法正确的是
D．Rt 处温度升高时，电压表 V1 示数与 V2 示数的比值变大 18．如图所示，竖直放置的光滑圆轨道被固定在水平地面上，半径为
R＝0.5 m，一可视为质点的小球逆时针运动通过轨道最低点 P 时，
速度大小为 v0 15 m / s ，Q 点为圆轨道上与圆心等高的点，
小球质量 m=1 kg, g＝10 m/s2，则下列说法正确的是
14．甲、乙两物体在 t=0 时刻同地出发，其运动的 x—t 图象如图所示，下列说法正确的是
A．甲物体做匀速直线运动，乙物体做变速直线运动
B．0～t2 时间内，甲物体通过的位移小于乙物体通过的位移
C．0～t1 时间内，甲物体平均速度大于乙物体的平均速度 D．t2 时刻甲物体的速度小于乙物体的速度 15．北京时间 2 月 10 号 19 时 52 分，中国首次火星探测任务 “天问一号”探测器实施近火捕获制动，发动机点火工作约 15 分钟后，探测器顺利进入近火星点高度约 400 千米、周期约 10 个地球日、倾角约 10°的大椭圆环火星轨道，这是中国第一颗 人造卫星实现此次任务“绕、着、巡”目标的第一步，成功开启环 绕火星模式，后续“天问一号”还将经过多次轨道调整，进入火星 停泊轨 道，开展预选着陆区探测，计划于 2021 年 5 月至 6 月择 机实施火星着陆，开展巡视探测。若探测器登陆火星前，除 P 点 在自身动力作用下改变轨道外，其余过程中仅受火 星万有引力作
2021年江西上饶中学高三英语二模试卷及答案
2021年江西上饶中学高三英语二模试卷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AThe Costa Book Awards consistently pick winners that are both of the moment and subsequently endure. It's our pleasure to confirm this year’s Category Winners.First Novel Award WinnerBook: Eleanor Oliphant is Completely FineAuthor: Gail HoneymanEleanor is 31 years old; work finishes on a Friday and begins again on a Monday. Between, her only company will be two bottles of vodka and her own solitary, unique wit (机智). It is contentment, of a kind, but an unexpected shared experience suddenly opens the door to possibility. Challenging reader expectations with a living, breathing character, Gail Honeyman’s debut (初次登台、开张)is a funny and moving diamond.Biography Award WinnerBook: In the Days of RainAuthor: Rebecca StottThe Exclusive Brethren were aclosed community who believed the world is ruled by Satan. Into this is born Rebecca. Her father had been an influential Brethren Minister. As her father lay dying, he begged her to help him write the memoir. He wanted to tell the story of their family who for generations had all been members of a fundamentalist Christian sect.Poetry Award WinnerBook: Inside the WaveAuthor: Helen DunmoreTo be alive is to be inside the wave, always travelling until it breaks and is gone. These poems are concerned with the borderline between the living and the dead — the underworld and the human living world – and the acutely intense being of both.Children's Award WinnerBook:The ExplorerAuthor: Katherine Rundell, Hannah HornFour children survive their aircraft plunging into the Amazon jungle, but for Fred and his friends it’s only the beginning of a cruel battle for survival. Brimming with adventure and a real command of character and incident, Rundell has few peers in superb children's fiction.1.What kind of life does Eleanor lead?A.boring and lonely.B.funny and touching.C.exciting and complex.D.ordinary and happy.2.Why did Rebecca Stott writeIn the Days of Rain?A.To introduce beliefs of the Exclusive Brethren.B.To help her father fulfill his last wish.CTo share the life of fundamentalist Christians.D.To pass on her family traditions.3.For a young adventurous soul, which book seems more appealing?A.Eleanor Oliphant is Completely FineB.In the Days of RainC.Inside the WaveD.The ExplorerBIf you ever get the impression that your dog can "tell" whether you look delighted or annoyed, you may be onto something. Dogs may indeed be able to distinguish between happy and angry human faces, according to a new studyResearchers trained a group of 11 dogs to distinguish between images(图像)of the same person making either a happy or an angry face. During the training stage, each dog was shown only the upper half or the lower half of the person's face. The researchers then tested the dogs' ability to distinguish between human facial expressions by showing them the other half of the person's face on images totally different from the ones used in training. The researchers found that the dogs were able to pick the angry or happy face by touching a picture of it with their noses more often than one would expect by random chance.The study showed the animals had figured out how to apply what they learned about human faces during training to new faces in the testing stage. "We can rule out that the dogs simply distinguish between the pictures based on a simple cue, such as the sight of teeth," said study author Corsin Muller. "Instead, our results suggest that the successful dogs realized that a smiling mouth means the same thing as smiling eyes, and the same rule applies to an angry mouth having the same meaning as angry eyes.""With our study, we think we can now confidently conclude that at least some dogs can distinguish humanfacial expressions," Muller toldLive Science.At this point, it is not clear why dogs seem to be equipped with the ability to recognize different facial expressions in humans. "To us, the most likely explanation appears to be that the basis lies in their living with humans, which gives them a lot of exposure to human facial expressions and this exposure has provided them with many chances to learn to distinguish between them." Muller said.4. The new study focused on whether dogs can_________.A. distinguish shapesB. make sense of human facesC. feel happy or angryD. communicate with each other5. What can we learn about the study from paragraph 2?A. Researchers tested the dogs in random order.B. Diverse methods were adopted during training.C. Pictures used in the two stages were differentD. The dogs were photographed before the lest.6. What is the last paragraph mainly about?A. A suggestion for future studies.B. A possible reason for the study findings.C. A major limitation of the studyD. An explanation of the research method.7. In which section is the text most likely to be found in a newspaper ?A. EntertainmentB. EconomyC. ScienceD. NatureCA dog spentthe lastfour years of his life waitingat a crossroad in the Thai city ofKhon Kaenas if waiting for someone. People originally thought the dog had been abandoned, but then realized that he looked healthy, so people asked around about him. It turned out that the dog had indeed been spending most of his time around that crossroad, but a woman had been coming round regularly to bring him food and water.One day, while photographing the dog everyone called Leo, a reporter met the woman who had been taking care of him. She had come to drop off some food. After learning the story about the dog and the woman, the reporter decided to share the story on social media. The post soonwent viraland the photos of Leo got shared hundreds of times. And the photos reached the eyes of Leo’s former old owner.Nang Noi Sittisarn, a 64-year-old woman fromThailand’sRoiEtProvince, almost had a heart attack when her daughter showed her a photo of the beloved dog named BonBon she had lost during a car trip. When she learned that he had been waiting for her in the same spot for the last four years，her heart melted(融化).Auntie Noi told her daughter to drive her to where the dog was waiting. When she got there and called his name. BonBon，the poor dog started wiggling(扭动)his tailand came to her，but when she tried to take him home with her, he was unwilling to follow. She didn’ t want to force the dog to come with her so she agreed to leave him with his new master. However, she and her daughter will come to visit him regularly.8.Why did the dog look healthy after separation from his former owner?A. He walked around the crossroad constantly.B. He was kept at a woman’s home all the time.C. A local reporter brought him food and water.D. A woman looked after him on a regular basis.9. What does the underlined phrase “went viral” in paragraph 2 probably mean?A. Changed surprisingly.B. Spread quickly.C. Appeared gradually.D. Fell directly.10. How did Nang Noi Sittisam feel about the dog's waiting for her?A. Shocked.B. Regretful.C. Touched.D. Proud.11. What can we mainly learn from the story about the dog?A. Unbelievable success is worth waiting for.B. We should adjust ourselves to environments.C. We need to learn to be faithful and thankful.D. No one knows the result until the last minuteDThe British poet Matthew Byrne moved to Beijing in 2013 and felt that the capital city's poetry scene was lacking．His obsession（痴迷）for starting poetryevents led to the foundation of the Spittoon Collective in May 2015．“At that time，the literary activity in Beijing was The Bookworm based in Sanlitun，”Byrne says．While some of Beijing's literary institutions would go on to close in the fall of 2019，Spittoon would continue to grow as a community for poets and writers，as well as musicians and others in the creative scene．Byrne describes the Spittoon Collective as a platform for people to share ideas，from literary works to different forms of art，with projects developing from the creative energy within the community．Spittoon originally started as a poetry night at the Mado Bar in Dongcheng District 's Baochao Hutong．Byrne says，“In Beijing，you have these wonderful hutongs，ancient structures where you can walk down and visit cool bars，so I thought it would be good to have a poetry event as it seemed like poetry belonged naturally to this area．”He adds，“The objective now is to discover Chinese voices and broadcast them to the rest of the world．We create a kindof theme park-like atmosphere where every Thursday is occupied by a different literary style or art form．”The readings would mainly be in English，but with an international community，a new section called“Poetry-in-Translation”was started，which featured works in Chinese，French，Arabic，Russian，Spanish and other languages．Joining organized activities like Spittoon can be a major help for those caught up in a boring life．And it's especially important for the people who have moved to China as they need to buildnew relationships while living in a different country．12. What can we know about the Spittoon Collective?A. It was closed in 2019．B. It was set up in 2013 in Beijing．C. It's popular with literature lovers．D. It's a community just for foreigners．13. Why did Byrne start the Spittoon Collective in Baochao Hutong?A. To attract students' love of poetry．B. To expandChina's literature globally．C. To makeBeijing's hutongs famous．D. To combine poetry with the hutong．14. What effect would the Spittoon Collective have on Chinese culture?A. Beneficial．B. Negative．C. Challenging．D. Controversial．15. What is the author's attitude to the Spittoon Collective?A. Unclear．B. Intolerant．C. Doubtful．D. Favorable．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。
2021年江西上饶中学高三英语二模试卷及答案解析
2021年江西上饶中学高三英语二模试卷及答案解析第一部分阅读（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AEach year, theLas Vegasconsumer electronics show, or CES, presents the latest developments in many areas of technology. The newest products are designed to make our lives easier, fun and more productive.A car with legsOne of this year’s presentations was by South Korean carmaker Hyun-dai. The company introduced a small model of a “ walking car,” which is called Elevate. It has four movable legs that can raise the main part of the vehicle high off the ground. The electric-powered vehicle is designed to be used in search-and-rescue operations during emergencies or natural disasters.Changeable people moverGermany's Mercedes presented an experimental self-driving vehicle that it claims can revolutionize transportation for people and goods. The company says the vehicle, called Vision Urbanetic, will be able lo easily change bodies depending on its desired use. Mercedes says as a ride-sharing vehicle , the futuristic-looking car can seat 12 people.Fully electric HarleyAmerican manufacturer Harley-Davidson showed off its first fully electric motorcycle, called LiveWire. The company says the bike will be able to go 177 kilometers between charges. It can reach 96 kilometers per hour in under3.5 seconds. Although Harley is known for building powerful bikes with huge, loud motors, the LiveWire will be unusually quiet.Personal robotsOne of the new robots, called Temi, is really just a computer tablet on wheels. It is designed to be a personal electronic assistant. It moves around the home and performs commands when spoken to. It can link users to friends through voice or video, connect to video or place orders for food or goods.1. Which do you probably use to search for the injured in an earthquake?A. Elevate.B. Vision Urbanetic.C. LiveWire.D. Temi.2. What is the first fully electric motorcycle produced by Harley-Davidson?A. ElevateB. Hyun-daiC. LiveWire .D. Temi .3. Why are the four products designed?A. To ease traffic jam.B. To help us socialize.C. To improve our life.D. To protect the environment.BKamikatsu, a small town in Japan, has shown the world that our garbage has far-reaching effects, and not just on our environment.Theexperiment in going zero waste started when the town built a new incinerator 20 years ago. But almost immediately, the incinerator was determined to be a health risk due to the poisonous gases when garbage was burned in it. It was too expensive to send waste to other towns, so locals had to come up with a new plan. Then the Zero Waste Academy was born, which helped perform this plan.Now Kamikatsu people separate their waste into 45 different categories. But in the beginning, it wasn't easy to convince local people to do all this work, and there was somepushback. Only after that initial education period did most residents come on board.This is all great news for waste reduction of course, but it has also had some unexpected social benefits as well. Like much of Japan, Kamikatsu's population is aging, and about 50 percent of the locals are elderly. The fact that the whole community takes their trash in to be recycled has created a local action and interaction between generations.That idea has been purposefully expanded to include a circular shop where household goods are dropped off and others can take them, and a tableware "library" where people can borrow extra cups, glasses, silverware and plates for celebrations."The elderly see this not as a waste-collection service, but an opportunity to socialize with the younger generation and to chat. When we visit them, they prepare lots of food and we stay with them for a while, we ask how they are," Sakano, the founder of the Zero Waste Academy, said.Sakano's ideas are truly revolutionary if you think about it. She's proving that community can be found through handling the stuff we no longer want and need.4. What is mainly talked about in paragraph 2?A. What harmful effects garbage burning has.B. Why garbage sorting is necessary in Japan.C. How the idea of zero waste was put forward.D. What the Zero Waste Academy functions as.5. What does the underlined word "pushback" probably mean?A. Inactive response.B. Generous reward.C. Bitter suffering.D. Beneficial guidance.6. What is a bonus of the zero waste project?A. Reducing waste.B. Creating community.C. Increasing people's income.D. Developing a new technology.7. Which part of a newspaper is this text most likely from?A. Technology.B. Health.C. Workplace.D. Lifestyle.CJose Hernandez made his dream of becoming an astronaut a reality and he did so despite unbelievable difficulties“I was workingin a field near Stockton, and I heard on my radio that Franklin Chang-Diaz had been selected for the Astronaut Corps," said Jose, who was a senior in high school at the timed was already interested in science and engineering, Jose remembered, "but that was the moment I said, "I want to fly in space.' "As one of four children in a migrant（移民）farming family from Mexico, Jose - who didn't learn English until he was 12 years old - spent much of his childhood traveling with his family from Mexico to southern California each March, then working northward to the Stockton area by November, picking strawberries and cucumbers at farms along the route. They would then return to Mexico for Christmas and start the cycle all over again in the spring. "Some kids might think it would be fun to travel like that,“ Jose laughed, "but we had to work”.After graduating from high school, Jose was admitted into the University of the Pacific, In 1987, he accepted a full-time job with Lawrence National Laboratory. In 2001, Jose joinedtheJohnson Space Center, where he came face-to-face with Franklin Chang-Diaz.“We actually had common experiences —asimilar upbringing, the same language issues. That built up my confidence. Any barriers that existed, he had already overcome them.” Jose smiled. "Now it's my tum!,,“NASA rejected me not once, not twice, not three times but 11 times. It wasn't until the 12th time that I got selected, he said. Jose was selected as part of the 19th class of astronauts in 2004. He circled the globe 217 times but remains a down to Earth guy.Jose Hernandez received the 2016 National Hispanic Hero Award and he continues his long history in the field of engineering and space.8. What made Jose determined to be an astronaut?A. The influence of Astronaut Corps.B. The success of Franklin Chang-Diaz.C. His interest in science and engineering.D. The experience of working in the field.9. What can we learn about Jose as a child?A. He did much farm work.B. He travelled a lot for fun.C. He hated learning English.D. He obeyed his family in everything.10. How did Jose feel when he met FranklinChang-Diaz personally?A. Inspired.B. Valued.C. Relaxed.D. Puzzled.11. What can be a suitable title for the text?A. Climb over BarriersB. Reach for the StarsC. Work the Hard WayD. Learn from Your PastDTaking an afternoon nap could keep your brain sharp, a new study has said. Adults ages 60 and older who took afternoon naps showed signs of better mental ability compared to those who didn’t nap, according to a study published in General Psychiatry earlier this week.Researchers analyzed napping habits in 2, 214 older Chinese people and measured their cognitive abilities using several cognitive tests. Participants took the Mini-Mental State Examination and theBeijingversion of the Montreal Cognitive Assessment, both of which test for memory, language and other cognitive abilities. In every category listed in the study, nappers tested statistically higher on average compared to their non-napping counterparts.Researchers did not gather data from people under 60, so a correlation cannot be drawn between napping and younger generations. The study also noted that there are conflicting studies about the benefits and risks of napping.Sleeping behaviors can be affected by a multitude of factors, said Dr. David Neubauer, associate professor atJohnsHopkinsUniversity. “Daily routines, medication use and sleep disorders can all play a role in how frequently someone takes a nap.” he said.Neubauer recommended taking a shorter “power nap” of up to 20 minutes to decrease the chances of transitioning into slow-wave sleep, which makes people feel groggy when they wake up. “Napping can be a healthy part of an older adult’s day”, Neubauer acknowledged, but make sure “sleepiness isn’t due to a treatablenighttime sleep disorder.” Older individuals who want to do all they can to preserve their cognitive functioning should put nighttime sleep first.12. What is the best way to keep a better cognitive ability for the old?A. Take a nap every day.B. Take sleep disorder seriously.C. Have a good sleep at night.D. Do exercise regularly.13. How did the researchers reach the conclusion?A. By taking the examinations and assessment.B. By analyzing napping habits and giving tests.C. By measuring nappers’ ability and analyzing them.D. By doing an experiment.14. Which has NO effect on one’s sleeping behaviors?A. Taking a nap.B. Medicine treatmentC. Sleep problemsD. Everyday activities.15. What can we know about “slow-wave sleep”?A. It appears in short nap up to 20 minutes.B. People should avoid it in their naps.C. It is a healthy part of an elder’s day.D. It was recommended by Neubauer.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。
〖2021年整理〗江西省上饶市高三第二次模拟考试配套精选卷
江西省上饶市2021届高三第二次模拟考试化学能力试题（满分300分考试时间1 50分钟）命题人：王发科谢远清童葆华钟天胜苏笃君汪伟郑康进黄春梅蒋峰注意事项：1．本试卷分为选择题和非选择题两部分，共16页。
2．答卷时，考生务必将自己的姓名、座号及答案填写在答题卡上。
3．选择题的每小题答案，用2B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，再选涂其它答案标号，不能答在试卷上。
4．考试结束后，将答题卡和答题纸一并交回。
本卷可能用到的数据：相对原子质量：H 1 C-12 N-14（）-16 Na 23 78g4L161℃2C 2SO o／L4B．常温时将o／L Na2 CO3溶液和0．1 mo／L NaHSO4溶液等体积混合，溶液中c（Na）c（H）=c（CO32－）c（SO42－）C（HCO3－）c（OH－）26．（14分）（Ⅰ）碳和碳的化合物在人类生产、生活中的应用非常广泛。
“低碳生活”不再只是一种理想，更是一种值得期待的生活方式。
（1）甲烷燃烧时放出大量的热，可作为能源应用于人类的生产和生活。
（2）将两个石墨电极插入KOH溶液中，向两极分别通入CH4和O2，构成甲烷燃料电池。
其负极电极反应式是：。
（3）将不同量的CO（g）和H2O（g）分别通入到体积为2L的恒容密闭容器中，进行反应：，得到如下三组数据：①实验1中，以v（H2）表示的平均反应速率为：。
②该反应的正反应为（填“吸”或“放”）热反应；③若要实验3达到与实验2相同的平衡状态（即各物质的体积分数分别相等），则a、b应满足的关系是（用含a、b的数学式表示）。
（Ⅱ）某小组运用工业上离子交换膜法制烧碱的原理，用如下图所示装置电解K2 SO4溶液。
①该电解槽中通过阴离子交换膜的离子数（填“>”“<”或“一”）通过阳离子交换膜的离子数；②图中a、b、c、d分别表示有关溶液的6Lo·L－1 Na2CO3中阴高子浓度大小关系是，向0．1mo·L －1 Na2CO3溶液中滴入少量氢氧化钡溶液，则发生反应的离子方程式为：。
江西省上饶市2021届高三生物第二次模拟考试（2021上饶二模）(1)
江西省上饶市2021届高三第二次模拟考试生物能力试题（总分值300分考试时刻1 50分钟）注意事项：1．本试卷分为选择题和非选择题两部份，共16页。
2．答卷时，考生务必将自己的姓名、座号及答案填写在答题卡上。
3．选择题的每题答案，用2B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，再选涂其它答案标号，不能答在试卷上。
4．考试终止后，将答题卡和答题纸一并交回。
本卷可能用到的数据：相对原子质量：H 1 C-12 N-14（）-16 Na 23 P 31 Cl 35．5 Mn-55 Zn- 65第I卷（选择题共2 1小题，每题6分，共1 2 6分）一、选择题（此题共1 3小题，每题6分，共78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．以下生理活动与细胞膜的流动性大体无关的是A．受精作用B．唾液的分泌C．兴奋在神经纤维的传导D．吞噬作用2．以下对与细胞割裂相关知识的表达正确的选项是A．体细胞染色体数为24条的生物体中，细胞内染色体数最多为24条B．哺乳动物的胚胎干细胞具有细胞周期，而卵细胞则无细胞周期C．经过减数分裂产生的配子，只含有一个染色体组D．根尖成熟区细胞经秋水仙素处理后染色体数将加倍3．如图表示的是原核细胞中遗传信息的传递进程，以下有关表达错误的选项是①克里克提出的中心法那么包括图中的A、B、C所示的遗传信息的传递进程②图中A、B进程进行的时刻段内都可能发生基因突变，它是生物变异的全然来源③核仁与图中rRNA的合成和核糖体的形成有关④核糖体在mRNA上的移动方向是由a到b ⑤多个核糖体一起完成一条多肽链的翻译，提高了合成肽链的速度⑥D进程表示tRNA运输氨基酸参与翻译的进程，已知甲硫氨酸和酪氨酸的密码子别离是AUG、UAC，某tRNA上的反密码子是AUG，那么该tRNA所携带的氨基酸是酪氨酸A．①④B．③⑥C．②⑤D．③⑤4．对以下四幅曲线图的描述正确的选项是A．图1中b时该植物的O2生成量为NiB．图2中a点植物叶肉细胞内不发生光合作用，b点表示光合作用最强C．由图3可看出，b点时种群增长速率最大，种内斗争也最激烈D．若图4表示人有丝分裂中染色体组数目变化的部分曲线，则n等于15．调查发觉某种蜣螂提高了“生活品位”，不仅吃粪便，还取食蜈蚣、千足虫等。
2021届江西省上饶市高三下学期3月第二次高考模拟考试(二模)数学(理)试题
上饶市2021届第二次高考模拟考试 数学（理科）试题卷注意事项：1． 本试卷分第Ⅰ卷（选择题）和第Ⅰ卷（非选择题）两部分．答题前，考生务必将自己的姓名、准考证号填写在答题卡上．2． 回答第Ⅰ卷时，选出每个小题答案后，用2B 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，写在本试卷上无效．3． 回答第Ⅰ卷时，将答案写在答题卡上，答在本试卷上无效． 4． 本试卷共22题，总分150分，考试时间120分钟．第Ⅰ卷（选择题）一、选择题：本大题共12小题，每小题5分，共60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{}4,3,2,1=A ，集合{}3|<=x x B ，A B =（▲）A.{}21， B. {}321，， C. []21， D. ()31， 2．复数z 满足(12)z i i =+⋅(i 为虚数单位)，则复数z 在复平面内对应的点位于（▲） A. 第一象限 B. 第二象限 C. 第三象限 D. 第四象限 3. 等比数列{}n a 中，，，644623==a a a 则=5a （▲）A. 22B. 8C. 16D.324．大摆锤是一种大型游乐设备(如图)，游客坐在圆形的座舱中，面向外，通常大摆锤以压肩作为 安全束缚，配以安全带作为二次保险，座舱旋转的同时，悬挂座舱的主轴在电机的驱动下做单摆运动.假设小明坐在点A 处，“大摆锤”启动后，主轴OB 在平面α内绕点O 左右摆动，平面α与水平地面垂直，OB 摆动的过程中，点A 在平面β内绕点B 作圆周运动，并且始终保持OB β⊥，B β∈.设AB OB 3=，在“大摆锤”启动后，下列结论错误的是（▲）A ．β与水平地面所成锐角记为θ，直线OB 与水平地面所成角记为δ，则θδ+为定值； B ．点A 在某个定球面上运动；C ．可能在某个时刻，α⊥AB ；D ．直线OA 与平面α所成角的余弦值的最大值为1010. 5. 变量x ，y 满足约束条件424x y y x x +≥⎧⎪-≤⎨⎪≤⎩，则x y z =的最大值（▲）A ．23 B ．2 C ．3 D ．5座位号6.函数()()xxf xx ln22⋅+=-的部分图象大致是（▲）A B C D7. 若函数)3sin()(ϕ+=xxf是偶函数，其中(0,)2πϕ∈，则函数)2sin()(ϕ+=xxg的图图（▲）A．关于点)0,3(π-对称B．可由函数xy2sin=的图象向左平移6π个单位得到C．关于直线125π=x对称D．可由函数xy2sin=的图象向左平移12π个单位得到8. 如图，在圆心角为直角的扇形OAH中，分别以OA，OH为直径作两个半圆，在扇形OAH内随机取一点，则此点取自阴影部分的概率是（▲）A．1πB．12C．π21-D．π221-9. 函数)0(,sin2)(>-=xxxxf的所有极大值点从小到大排成数列{}n a，设n S是数列{}n a的前n项和，则=2021cos S（▲）A．1B．21C．21-D. 010.如图，AB是圆O的一条直径且2=AB，EF是圆O的一条弦，且1=EF，点P在线段EF上，则PA PB⋅的最小值是（▲）A．21B．41-C．21-D．43-11．双曲线E：()222210,0x ya ba b-=>>的右焦点为2F，A和B为双曲线上关于原点对称的两点，且A在第一象限.连结2AF并延长交双曲线与点P，连结2BF、BP，若PBF2∆是等边三角形，则双曲线E的离心率为（▲）A．210B．10C．19D．21912.对任意0>x，不等式)71828.2(2ln3≈++≤eexaxeaxx，则正实数a的取值范围是（▲）A.(]30e， B. ⎥⎦⎤⎝⎛23e， C. ⎥⎦⎤⎢⎣⎡3,2eeD. ⎥⎦⎤⎢⎣⎡2,23ee第Ⅱ卷（非选择题）本卷包括必考题和选考题两个部分。
江西省上饶市2021届高三物理第二次模拟考试（2021上饶二模）(1)
江西省上饶市2021届高三第二次模拟考试物理能力试题（总分值300分考试时刻1 50分钟）注意事项：1．本试卷分为选择题和非选择题两部份，共16页。
2．答卷时，考生务必将自己的姓名、座号及答案填写在答题卡上。
3．选择题的每题答案，用2B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，再选涂其它答案标号，不能答在试卷上。
4．考试终止后，将答题卡和答题纸一并交回。
本卷可能用到的数据：第I卷（选择题共2 1小题，每题6分，共1 2 6分）二、选择题：此题共8小题，每题6分。
在每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。
全数选对的得6分，选对但不全的得3分，有选错的得0分。
14．以下说法正确的选项是：A．从牛顿第一定律可演绎出“质量是物体惯性大小的量度”的结论B．电源是通过非静电力做功把电能转化为其他形式的能的装置C．由于静电力和万有引力的公式在形式上很相似，所以目前科学界公认：静电力和万有引力都是电磁相互作用D．T．m2与V·s能表示同一个物理量的单位15．如下图，斜面上固定有一与斜面垂直的挡板，还有一截面为1／4圆的滑腻柱状物体甲放置于斜面上，半径与甲相同的滑腻球乙被夹在甲与挡板之间，没有与斜面接触而处于静止状态。
此刻从球心O．处对甲施加一平行于斜面向下的力F，使甲沿斜面方向缓慢向下移动。
设乙对挡板的压力大小为F1，甲对斜面的压力大小为F2，甲对乙的弹力为F3。
在此进程中：A．F1逐渐增大，F2逐渐增大，F3逐渐增大B．F1逐渐减小，F2保持不变，F3逐渐减小C．F1保持不变，F2逐渐增大，F3先增大后减小D．F1逐渐减小，F2保持不变，F3先减小后增大16．2021年1 2月2日1时30分，搭载嫦娥三号探测器的长征三号乙火箭点火升空。
假设为了探测月球，载着登岸舱的探测飞船在以月球中心为圆心，半径为r1的圆轨道上运动，周期为T1，总质量为m1，登岸舱随后离开飞船，变轨到离月球更近的半径为r2的圆轨道上运动，现在登岸舱的质量为m2，最终在月球表面实现软着陆、无人探测及月夜生存三大创新。
2021届上饶县第二中学高三英语二模试题及答案
2021届上饶县第二中学高三英语二模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AOlder adults who sleep six hours or fewer a night may have elevated risk for dementia(痴呆症) and other cognitive (认知的) issues, a new study finds.Researchers at Stanford University measured seniors' (ages 65 to 85) dementia risk and cognitive abilities, finding higher risk in those patients who regularly slept six or fewer hours compared to those who slept seven or eight hours. Those seniors who slept nine or more hours also had lower cognitive functions and other health issues, but the researchers didn't find the same high dementia risk in this group.The findings demonstrate how important it is for adults to maintain a healthy sleep cycle, especially as they get older.As adults age, it's common for their sleep patterns to change or becomedisrupted— leading to longer, shorter, or more irregular sleep. This disruption may be linked to Alzheimer's and other forms of dementia, impacting seniors' ability to remember information, problem-solve, and go through everyday behaviors. Sleep disruption can also be caused by or heighten depression, cardiovascular disease（冠心病）, and other conditions.A recommended sleep time for seniors is seven to eight hours, the researchers said. Six or fewer hours corresponded to short sleep, while nine or more hours corresponded to long sleep.The Stanford researchers measured levels of beta amyloid, a protein in the brain that is typically found in high levels when a patient develops Alzheimer's. In addition, the researchers used several tests for memory, attention, spatial skills, and executive function to identify patients' cognitive abilities. Those patients sleeping for six hours or fewer a night were more likely to develop dementia, the researchers found. The low-sleep patients had higher levels of beta amyloid.The Stanford researchers found that patients with lower sleep also performed worse on memory tests, while those with higher sleep (more hours) performed worse on executive function tests，which measure the brain's ability to switch between different tasks.―The main takeaway is that it is important to maintain healthy sleep late in life, Winer told CNN.1. What does the underlined word “disrupted” in paragraph 4 mean?A. difficultB. disorderedC. dissolvedD. different2. According to the findings, which of the following is NOT related to the disrupted sleep?A. It is more likely to cause old people to have bad memories over issues.B. It may contribute to dementia, cardiovascular disease and other illnesses.C. Some daily behaviors perhaps differ from those whose sleeping is normal.D It tends to bring all the old people to undergo brain scans and cognitive tests.3. What can we infer from the study?A. A proper sleep time for seniors is seven to eight hours.B. Low and high sleep patients were both poor at memory tests.C. Executive function test is applied to measure the capacity of brain.D. Keeping a healthy sleep for older adults late in life is crucial.BMove over, helicopter parents. “Snowplow (扫雪机) parents” are the newest reflection of an intensive (强化的) parenting style that can include parents booking their adult children haircuts, texting their college kids to wake them up so they don’t sleep through a test, and even calling their kids’ employers.Helicopter parenting the practice of wandering anxiously near one’s children, monitoring their every activity, is so 20th century. Some rich mothers and fathers now are more like snowplows: machines moving ahead, clearing any difficulties in their children’s path to success, so they don’t have to suffer failure, frustration (挫折) or lose opportunities.It starts early, when parents get on wait lists for excellent preschools before their babies are born and try to make sure their kids never do anything that may frustrate them. It gets more intense when school starts: running forgotten homework to school or calling a coach to request that their children make the team.Rich parents may have more time and money to devote to making sure their children don’t ever meet with failure, but it’s not only rich parents practicing snowplow parenting. This intensive parenting has become the most welcome way to raise children, regardless of income, education, or race.Yes, it’s a parent’s job to support the children, and to use their adult wisdom to prepare for the future when their children aren’t mature enough to do so. That’s why parents hide certain toys from babies to avoid getting angry or take away a teenager’s car keys until he finishes his college applications.But snowplow parents can take it too far, some experts say. If children have never faced a difficulty, what happens when they get into the real world?“Solving problems, taking risks and overcoming frustration are key life skills,” many child development experts say, “and if parents don’t let their children experience failure, the children don’t acquire them.”4. What do we know about snowplow parenting?A. It appeared before helicopter parenting.B. It costs parents less than helicopter parenting.C. It was a typical phenomenon of the 20th century.D. It provides more than enough services for children.5. What is mainly discussed about snowplow parenting in Paragraph 4?A. Its cost.B. Its benefits.C. Its popularity.D. Its ending.6. Why does the author mention parents’ taking away car keys?A. To show teenagers are no better than babies.B. To advise teenagers not to treat their cars as toys.C. To advise parents not to buy cars for their teenagers.D. To show it’s appropriate to help children when necessary.7. What’s the possible result of snowplow parenting according to the experts?A. Children lacking problem-solving ability in reality.B. Children mastering more key life skills than parents.C. Children gaining great success in every aspect of life.D. Children meeting no problems or frustration after growing up.COn September 7, 1930, Yuan Longping was born inBeijing. Fluent in English, his mother often read Friedrich Nietzsche's works to him. Influenced by his mother, Yuan Longping liked English,geography and chemistry at school. After graduating from university, he became a teacher in the countryside ofHunanin 1953.With lots of crop failures, nationwide hunger hitChinain the 1960s, making many people live a bad life. Yuan was sad and felt he must do something. Since the climate inHunanwas not friendly to growing wheat. He decided to devote himself to studying how to increase the production of rice, a basic food for over 60 percent of Chinese people. From then on, he began a lifelong connection with rice.Yuan Longping succeeded in growing the world's first high production hybrid rice (杂交水稻) variety in 1973, which could reach a yield of over 500 kg per more than 200 kg than before. For the next four decades, he continued to work on the research of hybrid rice. In 2020, hybrid rice developed by his team achieved 1,500 kgpermuin two growing seasons, a new world record.Nowadays, the hybrid rice is grown in almost half ofChina's rice fields and its production accounts for 60 percent of the total rice production inChina. The hybrid rice production is 20 percent more than the common kinds , the yearly increase of which feeds up to 100 million people.In 2019, Yuan Longping, known as the “Father of hybrid rice”, was awarded with Medal of the Republic,China's highest honor.Yuan Longping's biggest dream in life was to develop more hybrid rice varieties, which could be grown all over the world to help solve the global food problem. So far, the hybrid varieties he developed have been grown in over 40 countries, including theUSA,BrazilandIndia.8. What do we know about Yuan Longping according to the text?A. He began to study hybrid rice in 1973.B. He received the highest honor inChinaat 90.C. He ever taught math in the city after graduation.D. He ever hoped Chinese would be free from hunger.9. How does the author mainly show the achievements of Yuan Longping in hybrid rice?A. By listing figures.B. By quoting reports.C. By imagining results.D. By explaining reasons.10. Which of the following best describes Yuan Longping according to the text?A. Patient and honest.B. Energetic and athletic.C. Capable and remarkable.D. Humorous and adventurous.11. What is the text mainly about?A. The life of Yuan Longping.B. The team of Yuan Longping.C. The honor of Yuan Longping.D. The education of Yuan Longping.DA new study finds almost one third of the world’s population is overweight. Since 1980, obesity rates(肥胖率)in children and adults have doubled in 73 countries, making people more worried. And rates are increasing in many other countries. Obesity is increasing faster in children than adults in many nations, including Algeria, Turkey and Jordan, the report said. But the world's weight problem is growing in both rich and poor countries alike. Researchers say an increasing number of people are dying of related health problems in what they called a "disturbing global public health problem."Researchers studied health information from 1980 through 2015. They examined obesity rates, average weight gain in 195 countries. They found that obesity rates are three times greater among youth and young adults in countries like China, Brazil and India. Almost 108 million children and more than 600 million adults were found to be overweight. Egypt had the highest number of overweight adults in 2015. Vietnam had the least. In the same year, the United States had the highest number of overweight children, and Bangladesh had the least.Yet hunger remains a problem in many areas. The United Nations said that almost 800 million people, including 300 million children, go to bed hungry each night. Experts said poor diets and lack of physical activity are mainly to blame for the rising numbers of overweight people.Growing populations have led to rising obesity rates in poor countries. Often, poor people will eat processed(加工的) foods instead of choosing a diet rich in vegetables.The London-based Overseas Development Institute studied the price of food in five countries: Britain, Brazil, China, Mexico and South Korea. It found that the cost of processed foods like ice creamand hamburgers has fallen since 1990. But the cost of fresh fruits and vegetables has gone up.12. What do we know about obesity in the world?A. It is worryingB. It is given no attentionC. It has been successfully solvedD. It is more serious among old people13. Which country has the most overweight children in 2015?A. AmericaB. VietnamC. EgyptD. Bangladesh14. What is one of the reasons why people get overweight?A. HungerB. Poor dietC. Diets with vegetablesD. Eating too much fruit15. Which ofthe following can be the best title for the text?A. It’s Important to Have a Balanced DietB. How Can We Lose Weight and Keep Fit?C. Is It Necessary for Us to Eat Fresh Vegetables?D. Nearly One Third of People in the World Are Overweight.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。
江西省上饶市2021届高三英语第二次模拟考试(1)
江西省上饶市2021届高三第二次模拟考试英语试题本试卷分第Ⅰ卷（选择题）和第Ⅱ卷（非选择题）两部份。
总分150分；时刻：120分钟。
考生注意：1．答题前，考生务必将自己的准考证号、姓名填写在答题卡上。
考生要认真查对卡上粘贴的条形码的“准考证号、姓名、考试科目”与考生本人准考证号、姓名是不是一致。
2．第Ⅰ卷每题选出答案后，用2B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。
第Ⅱ卷用黑色墨水签字笔在答题卡上书写作答。
在试题卷上作答，答案无效。
3．考试终止后，监考员将答题卡一并收回。
第Ⅰ卷（三部份，共115分）第一部份：听力（共两节，总分值30分）第一节（共5小题；每题1．5分，总分值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三个选项当选出最正确选项，并标在答题卷的相应位置。
听完每段对话后，你都有10秒钟的时刻来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1．What will the woman do next?A．Turn down the radio．B．Close the window．C．Go to bed．2．Who will probably get the stamps?A．The woman．B．The man’s classmate．C．The woman’s sister．3．Why can't the woman go with the man?A．She's a little tired．B．She's going to listen to music．C．She's going to the library．4．When will the man arrive home?A．At 10 0'clock．B．At 11:00．C．At 12：00．5．Where does the conversation take place?A．At home．B．In a travel agency．C．In a hotel．第二节（共15小题，每题1．5分，总分值22．5分）听下面5段对话或独白。
2021届江西省上饶县二中高三仿真模拟语文试卷
2021年江西省上饶县二中高三仿真模拟语文试卷学校:___________姓名：___________班级：___________考号：___________一、现代文阅读阅读下面的文字，完成下面各题。
角神中国古典方形木构建筑檐下四角，或室内神佛造像的台座腰部，往往设置力士、神兽负重的形象，谓之“角神”或“扛坐神”。
角神姿态多作奋力托举状，有双臂并举者，有以肩扛顶者，仿佛千钧之重集于一身。
它既有支撑屋宇或台座结构的作用，又是传统建筑中少见的具象写实构件之一，兼具功能性与审美性，殊有意趣。
角神表现千钧之力聚集于四隅的设计手法，反映了中国传统建筑以四柱支起屋顶的最基本的结构特点，正所谓“四隅之阿，四柱复屋”。
同时，角神的产生又与中国古典神话不无关系。
《全后汉文》言：“四岳阿鲧，绩用不成。
”“岳阿”即四极之山，战国铜镜多有四山的形象，可能描绘了四山对天盖的支撑。
又如临淄齐墓出土漆盘与长沙楚墓出土帛书图形的四角都绘有四颗树，当代表古代神话中的神树。
对角隅支撑物的特别关注，是促成建筑“角神”出现的重要因素。
较早的角神实例见于洛阳金村东周天子陵出土的器物中，将器脚设计为神人、神兽托举造型。
秦雍城遗址出土的一件钱瓦当上描绘了当时屋宇的简化图形，屋檐下有一托举屋盖的人形，双臂上举，可谓建筑角神的直接实例。
由此可知，作为承重功能的艺术化表达，神兽或力士形象的角神已出现在战国建筑之上。
另外，角神的设置还与汉代流行的以神兽“坐镇”空间四角的习俗意蕴相通。
彼时人尚席居，室中铺筵席以坐，为避免滑动，席的四角往往以重物压住,今谓之“席镇”。
汉代建筑不但角部铺作设置角神，柱上或柱脚亦设有托举状的神人、神兽形象。
汉末三国时期，建筑角隅设置神兽的做法可见于南京上坊、安徽当涂两处东吴大墓。
南北朝时期表现“托举”功能的力士、神兽造型也有若干实例留存至今。
大同北魏司马金龙墓出土石棺床床脚部雕刻有力士形象。
中国国家博物馆藏一件北朝石椁则以浮雕形式表现了屋形石椁四角侍立的武士，浮雕武士本身虽游离于建筑结构之外，却表现了建筑空间功能上的镇守意义，虽无角神之形体，却有角神之意蕴。
江西省上饶市2021届高三语文下学期3月第二次模拟考试二模试题
江西省上饶市2021届高三语文下学期3月第二次模拟考试（二模）试题总分：150 分 时间：150 分钟命题人： 第 I 卷阅读题一、现代文阅读（36 分）（一）论述类文本阅读（共 3 小题，9 分）阅读下面的文字，完成 1-3 题。
1. 下列关于原文内容的理解和分析，不正确的一项是（ ）（3 分）A. 随着更为尖端的体育装备的采用，体育竞技将是运动员、装备、训练的综合较量。
B. 2018 年世界杯首次使用了 EPTS ，将运动的时空信息自动化采集并数据化呈现。
C. 动作捕捉技术的不断发展进步，使其应用范围不再局限于影片制作或体育科研。
D. 英国自行车队连续三年称霸自行车赛场，高科技手段起到了推动性作用。
2. 下列对原文论证的相关分析，不正确的一项是（ ）（3 分） A.文章既承认训练水平提升的意义，又肯定高科技运动装备的作用，彰显了辩证的态度。
B.文章在论证时主要运用了例证法，也运用了正反对比的方法，来论证科技装备的作用。
C.文章先提出“科技赋能愈发重要”的观点，再分层论述，最后谈对未来的深远影响。
D.文章第三段举 M ySwing 的事例，有力的说明了科技对个人技术动作的分析的积极作用。
3. 根据原文内容，下列说法正确的一项是（ ）（3 分）现代体育比赛不仅是各国运动员速度与力量的竞技场，也是世界各国展示形象，尖端科技与体育 融合的大舞台。
随着人类对挑战自身的执着追求，各竞技项目的成绩不断逼近人体能力的极限，要想 进一步提高比赛成绩，哪怕是提高百分之一甚至千分之一，教练与运动员都要竭尽全力采用各种方式 和技术去实现，科技的赋能作用也就愈发重要。
2018 年俄罗斯世界杯上，数字化表现和跟踪系统（EPTS ）被首次全面采用。
它的主要功能是将运 动的时空信息自动化采集并数据化呈现，从而实现对训练与比赛的数字化阅读。
借助摄像机与可穿戴 式传感器，EPTS 系统能够追踪球员以及足球的运动信息，并通过平板电脑向教练员提供球员的统计数 据、位置信息以及相应的视频剪辑，帮助教练员进行赛场上的决策。
江西省上饶县中学2021年高三上学期第二次周练物理试题
一、选择题(每题４分，共48分,其中6~１2题为多选题） １.下列说法正确的是A.玻尔根据光的波粒二象性,大胆提出假设,认为实物粒子也具有波动性 Ｂ．铀核裂变的核反应方程是23514489192563602U Ba Kr n→++ C.原子从低能级向高能级跃迁，不吸收光子也能实现D ．根据爱因斯坦的“光子说”可知,光的波长越大,光子的能量越大2.如图所示，物体（可视及质点）自 Ｏ点由静止开始做匀加速直线运动,途经 A 、 Ｂ、 C 三点,其中 A 、 B 之间的距离 l 1=3 ｍ， B 、 C 之间的距离 l ２=4 m 。
若物体通过 l 1、 l ２这两段位移的时间相等，则 Ｏ、 A 之间的距离 l 等于A.34m ﻩ Ｂ.43m ﻩﻩﻩ C.825m ﻩﻩ Ｄ.258m 3.如图所示，Ａ、Ｂ质量均为m ,叠放在轻质弹簧上(弹簧下端固定于地面上)，对A 施加一竖直向下、大小为F (F ＞2mg )的力,将弹簧再压缩一段距离(弹簧始终处于弹性限度内)而处于平衡状态，现突然撤去力F ,设两物体向上运动过程中A 、Ｂ间的相互作用力大小为F N ,不计空气阻力，则关于F N 的说法正确的是(重力加速度为g )A.刚撤去外力F 时,F N ＝ﻩB ．弹簧弹力等于F 时，ＦN=C.A 、B 的速度最大时，F N =2mgﻩﻩ Ｄ.弹簧恢复原长时,ＦＮ=ｍg４.假设一艘飞船靠近火星时，经历如图所示的变轨过程，则下列说法正确的是A．飞船在轨道Ⅱ上运动到P点的速度小于在轨道I上运动到P点的速度B.若轨道I贴近火星表面,测出飞船在轨道Ｉ上运动的周期（G已知）,就可以推知火星的密度C.飞船在轨道I上运动到P点时的加速度大于飞船在轨道Ⅱ上运动到P点时的加速度D．飞船在轨道Ⅱ上运动时的周期小于在轨道I上运动时的周期５.有一条捕鱼小船停靠在湖边码头，小船又窄又长，一位同学想用一个卷尺粗略测定它的质量，他进行了如下操作:首先将船平行码头自由停泊，然后他轻轻从船尾上船，走到船头后停下，而后轻轻下船，用卷尺测出船后退的距离d,然后用卷尺测出船长为L．已知他自身的质量为m,则小船的质量m0为A.ﻩﻩＢ.ﻩﻩC．ﻩﻩD.６.如图所示，某科研单位设计了一质量为ｍ的空间飞行器，飞行器从地面起飞时,发动机提供的动力方向与水平方向夹角α=６０°,使飞行器恰沿与水平方向成θ=30°角的直线斜向右上方匀加速飞行,经t时间后，将动力的方向沿逆时针旋转60°,同时适当调节其大小，使飞行器依然可以沿原方向匀减速飞行，飞行器所受空气阻力不计,重力加速度大小为ｇ,下列说法中正确的是A.加速时动力的大小等于mgＢ．加速时加速度的大小为gＣ.减速时动力的大小等于Ｄ.减速飞行ｔ时间后速度为零７.如图所示，直线a、抛物线b和c为某一稳恒直流电源在纯电阻电路中的总功率ＰＥ、输出功率PＲ、电源内部发热功率Pｒ，随路端电压Ｕ变化的图象，但具体对应关系未知,根据图象可判断A．PＥ－Ｕ图象对应图线a.由图知电动势为９V，内阻为3ΩB．P r-U图象对应图线b，由图知电动势为３V，阻为1ΩC. PＲ-U图象对应图线c，图象中任意电压值对应的功率关系P E =Pｒ + P RD.外电路电阻为１.5Ω时,电源输出功率最大为2．25W8.如图所示，氕核、氘核、氚核三种粒子从同一位置无初速度地进入电场线水平向右的加速电场E１之后进入电场线竖直向下的匀强电场Ｅ2发生偏转,最后打在屏上。
2021年3月江西省上饶市普通高中2021届高三毕业班下学期第二次高考模拟考试英语试题
上饶市2021届高三第二次高考模拟考试英语试题卷命题人：注意事项：1.本试卷分第Ⅰ卷(选择题)和第Ⅱ卷(非选择题)两部分。
2.答题前,考生务必将自己的姓名,准考证号填写在答题卡上。
3.选出每小题答案后,用2B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。
答案必须在答题卡上完成,答案在本试卷上无效。
4.考试结束后,只交答题卡。
第一部分听力（共两节，满分30分）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,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 does Steven advise Anna to do?A.Ask for leave.B.Finish her project.C.Stop work for the day.2.What are the speakers talking about?A.A movie star.B.A film review.C.Their favorite movies.3.Why was the woman late for work?A.She visited some guests first.B.She got up late this morning.C.She stayed up working last night.4.How does the man feel about the crisis?A.Relaxed.B.Worried.C.Confused.5.What does the woman care most about the applicants?A.The degree.B.The work experience.C.The performance in the interview.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。
2021届江西省上饶市高考二模语文答案
上饶市2021届高三语文第二次模拟考试参考答案1.B解析: B“首次使用”错误，根据原文“首次全面使用”，说明早就使用了，只是不是“全面使用”。
2.B解析:B项没有正反对比3. A解析:B.项“逼近人体极限”，而不是“突破”；C. “不再需要”错误，经验也需要D. 是评估维度，不是标准4.A解析:B项对种种“甘露”、诸多“精神”的歌颂，并非其由衷之情、有感而发，而本因却是“冠状病毒君”的出现和蔓延。
由作者主观臆造的因果关系，击溃了人们的正常思维认知和价值审美，是对人性、对生命的日常化漠视；C项有较大影响的抗疫作品，“大多数”接地气，而非“都”）；D 项“融入人民生活”，“对时代做出准确记录”是结果，而非条件）5.B解析：B项强加因果；原文的意思是这些要求作家要遵守，不能把它们当作点缀，而不是作品中的点缀。
6.答案：①创作内容上，要体现人性（人情共情），体现人类对生命的敬畏和反思，内容表达要全面（既要有个体，也要有群体的抗疫内容）。
②情感表达上，要体现人们对疫情勇敢抗争的精神，体现民族认同感和自豪感。
③创作思想和手法上，要摆脱急功近利（消费灾难）的心态，从抗疫的实情出发（坚持现实主义风格），关注现实和未来。
（其他角度言之有理也可）解析：可从创作的角度分析，应该在作品的内容、情感、手法等方面着力。
结合具体材料可以看出，从作品内容上看，抗疫作品要体现人性、体现对生命的敬畏。
从情感表达上看，要体现人们战胜疫情的决心等；从创作手法上看，要稳扎稳打，从疫情的实际出发，关注现实和未来等。
7.C解析：应该是“化具象为抽象”8.①渴望读书学习，且学习成绩优秀。
不能继续读书时内心的伤感和痛苦，“笑容是凄淡的”“眼里含着泪水”。
②乖巧懂事，隐忍退让。
“姐是女的，就留在家里种地”“连二姐的那份也给读上”。
③爱护弟弟，对弟弟读书的期望与祝福。
在弟弟面前强颜欢笑“好好读书”的叮嘱，送给弟弟钢笔。
9.含意：①这是“我”对二姐的歉疚。
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上饶县中学2021届高三年级第二次模拟测试生物试题联盟注入一滴水拥有太平洋！理科综合能力测试卷命题人：廖霓芳叶金祥郑森辉本试卷分第Ⅰ卷(选择题)和第Ⅱ卷(非选择题)两部分，满分300分，考试时间150分钟。
考生注意：1、答题前，考生务必将自己的准考证号、姓名填写在答题卡上。
考生要认真核对答题卡上粘的条形码的“准考证号、姓名、考试科目”与考生本人准考证号、姓名是否一致。
2、第Ⅰ卷每小题选出答案后，用2B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。
第Ⅱ卷用黑色墨水笔在答题卡上书写作答，在试题卷上作答，答案无效。
3、考试结束，监考员只需将答题卡收回装订。
第Ⅰ卷(选择题，共126分)以下数据可供解题时参考：相对原子质量(原子量)：O－16 C－12 Mg－24 S－32 Fe－56 Cu－64 Zn－65 一、选择题(本题包括13小题，每小题只有一个选项符合题意) 1、下列是关于叶绿体和光合作用的几个实验，你认为不可能的是A.将经饥饿处理后的绿色正常叶片置于含有充足14CO2的密闭透明的照光小室内，3 小时在叶肉淀粉中可检测到14C的存在B.将叶绿体色素的丙酮提取液放于自然光和三棱镜之间，从三棱镜的一侧观察，连续光谱中变暗(暗带)的区域是红橙光和蓝紫光区域C.在温暖晴朗的一天下午，在某植物的向阳处采得一片叶，用酒精隔水加热脱色，并加碘液处理叶片，显微镜下观察到叶绿体变成蓝色D.将叶绿体色素的丙酮提取液置于适宜光源下照射5小时，加碘液处理后溶液呈蓝色2、下列关于几种微生物的营养代谢的描述，正确的是A.根瘤菌通过生物固氮制造了核酸等含氮有机物提供给豆科植物B.接种到培养基上的青霉菌，进入对数期能大量积累青霉素C.培养液中溶氧量的变化，会影响酵母菌的生长繁殖和代谢途径D.在含葡萄糖和乳糖的培养基上，大肠杆菌同时利用葡萄糖和乳糖作为碳源 3、据报道：美国一科学家模仿鲨鱼皮肤表面粗糙V形皱褶制作的泳衣，能减少水流的生物试题联盟期待你的加入，你给我一滴水，我将还你一片海！生物试题联盟注入一滴水拥有太平洋！摩擦力，使身体向周围的水流更高效地流过，从而大大地提高了运动员的比赛成绩。
以下说法正确的是A.该发明体现了生物多样性的直接使用价值B.该事例充分证明，人类完全可以征服自然C.长期海水摩擦导致鲨鱼皮肤出现V形皱褶D.鲨鱼的进化方向是由基因突变的方向决定的4、神经电位的测量装置如右装置图所示，其中箭头表示施加适宜刺激，阴影表示兴奋区域。
用记录仪记录A、B两电极之间的电位差，结果如右上曲线图。
若将记录仪的A、B两电极均置于膜外，其它实验条件不变，则测量结果是5、以下三个曲线图分别表示：图①表示将抗原X注射于兔体内后抗体产生量的变化量，第8天，同时注射所用剂量相等的抗原Y和X，则曲线b、c分别表示对抗原Y和X 的抗体产生量。
图②表示温度与酶的催化效率的关系。
图③表示将植物放在不同浓度CO2环境条件下，其光合速率受光照强度影响的变化曲线，图中b点与a点相比较，b点处叶肉细胞中C3的含量较低．b点与c点相比较，b点处叶肉细胞中C3的含量较高。
上述叙述中，正确的有A.①②B.②③C.①③D.①6、元素周期表是20世纪科学技术发展的重要理论依据之一，是我们学习化学的重要工具。
假设NH4+是“元素”NH4的阳离子，下列有关说法错误的是A.“元素”NH4在周期表中的位置是第3周期第IA族B.“元素”NH4的“单质”在常温常压下应为气体，熔点较低 C.“元素”NH4的“单质”在常温下能导电 D.“元素”NH4的碳酸盐易溶于水，为强电解质生物试题联盟期待你的加入，你给我一滴水，我将还你一片海！生物试题联盟注入一滴水拥有太平洋！ x x 7、a、b、c、d均为短周期元素，a的原子结构示意图为 +7 4 x 2 x ，元素b形成的单质可以与CO2发生置换反应，原子序数b < c < a，b与d形成的化合物的电子式为�E - [:�E :] -b 2+ :] 。
下列比较中正确的是 d[:d�E �EA.原子半径c < dB.四种元素在同一周期C.气态氢化物的稳定性a < dD.最高价氧化物对应的水化物的碱性b < c 8、常温下，下列各组离子在指定环境中不能大量共存且一定会放出无色气体的是 A.遇到pH试纸变红色的溶液中：K+、Cl、NO3、NH4+－－B.在c(H+)/ c(OH)=1×1012的溶液中：I、Cl、HCO3、Na+－－－－C.在c(H+)=KW的溶液中：Na+、S2、NO3、CO32－－－D.由水电离出的c (H+)=1×10－12mol?L－－1的溶液中：NH4+、Fe2+、SO42、Cl－－＋－9、某酸性溶液中只有Na+、CH3COO、H、OH4种离子。
A.该溶液可由pH=3的CH3COOH与pH=11的NaOH溶液等体积混合而成B.该溶液由等物质的量浓度、等体积NaOH的溶液和CH3COOH溶液混合而成C.加入适量的NaOH溶液，则溶液中的离子浓度为 c(CH3COO)> c(Na+)> c(OH)> c(H+)－－D.加入适量氨水，c(CH3COO)一定大于c(Na+)、c(NH4+)之和－10、泰雅紫是古代地中海沿岸出产的一种贵重染料，罗马帝王用法律规定，只有皇族与教主可穿用这种染料染的紫色衣袍。
当时人们是从小的紫蜗牛中提取泰雅紫的，制备1.5g泰雅紫需要多达12000只紫蜗牛，现知其结构为如下图(C、H原子未写出)所示的含溴有机化O 合物。
下列说法不正确的是 Br N A.泰雅紫分子的分子式为：C16H8N2Br2O2 B.1mol泰雅紫与H2加成最多需9molH2 N Br O C.泰雅紫属于烃的衍生物D.检验泰雅紫中溴元素可直接加入硝酸银溶液，观察是否有浅黄色沉淀生成 11、据报道，一种名叫“排毒基强离子排毒仪”的产品正在市场上热销。
该仪器像一个普通电动脚盆，使用时往注满水的盆中放入双脚，加一些精盐(NaCl)，通电启动仪器，过了一段时间，盆中开始出现灰绿色、红褐色的絮状物质。
下列说法不正确的是A.灰绿色、红褐色的絮状物质中含有Fe(OH)2和Fe(OH)3B.此电动脚盆仪器的电极全是用惰性电极材料制成的C.通电一段时间有无色无味的气体产生D.4Fe(OH)2＋2H2O＋O2===4Fe(OH)3为此过程中涉及的反应之一 12、下列实验操作，现象和结论都正确的是生物试题联盟期待你的加入，你给我一滴水，我将还你一片海！生物试题联盟注入一滴水拥有太平洋！序号 A 实验操作在一定量淀粉溶液中加入少量稀硫酸，加热一段时间，加入银氨溶液，水浴加热在试管里放一团棉花，加入稀 B 硫酸，加热几分钟，加入氢氧化钠溶液至碱性，再加入新制氢氧化铜悬浊液，加热 C 某溶液中滴加淀粉溶液甲、乙两支试管里分别装有等量鸡蛋白溶液，在甲试管里加 D 入M2SO4溶液，再加入水、振溶液变蓝色该溶液含有I －现象无银镜结论淀粉没有水解产生红色液体说明纤维素完全水解生成葡萄糖甲、乙试管都产生沉淀、M2SO4可能是碱金加水振荡后，甲试管中属盐，QSO4可能是重金属盐，如硫酸铜等沉淀溶解，乙试管中沉荡；在乙试管里加入QSO4溶液，淀不溶解再加入水振荡 13、将11.9g Mg、Al、Fe组成的合金溶于足量的NaOH溶液中，合金质量减少了2.7g。
另取等质量的合金溶于过量稀硝酸中，生成了6.72L(标准状况下)NO，向反应后的溶液中加入适量NaOH溶液恰好使Mg2、Al3、Fe3完全转化为沉淀，则沉淀质量为＋＋＋A.22.1gB.27.2gC.30gD.无法确定二、选择题（本题包括8小题, 每小题6分，共48分．在每小题给出的四个选项中，有的小题只有一个选项正确，有的小题有多个选项正确．全部选对的得6分，选不全的得3分，有选错或不答的得0分）14、雷蒙德・戴维期在研究来自太阳的电子中微子(ve)时，探测中微子所用的探测器的主体是一个贮满615t四氯乙烯(C2Cl4)液体的巨桶。
电子中微子可以将一个氯核转变为一37373737个氩核，其核反应方程式为ve＋17Cl→18Ar＋0e（已知Cl核的质量为36.95658u，?11718Ar核的质量为36.95691u，0。
根据?1e的质量为0.00055u，1u质量对应的能量为931.5MeV）以上数据，可以判断参与上述反应的电子中微子的最小能量为A.0.82 MeVB.0.31 MeVC.1.33 MeVD.0.51 MeV15、硅光电池作为电源已广泛应用于人造卫星、灯塔和无人气象站等，高速公路上安装的“电子眼”通常也采用硅光电池供电。
硅光电池的原理如图所示，a、b是硅光电池的两个电极，P、N 是两块硅半导体，E区是两块半导体自发形成的匀强电场区，P的上表面镀有一层增透膜．光照射到半导体P上，使P内受原子束缚的电子成为自由电子，自由电子经E区电场加速到达半导体N，从而产生电动势，形成电流．以下说法中正确的是A.E区匀强电场的方向由N指向PB.电源内部的电流方向由P指向N生物试题联盟期待你的加入，你给我一滴水，我将还你一片海！生物试题联盟注入一滴水拥有太平洋！C.a电极为电池的正极D.硅光电池是一种把化学能转化为电能的装置16、一物块放在固定的粗糙斜面上，受到平行于斜面向上的作用力F。
当F按图甲所示规律变化时，物块始终处于静止状态，则物块与斜面间的摩擦力变化规律可能是17、用两种不同的金属丝组成一个回路，接触点1插在热水中，接触2点插在冷水中，如图所示，电流计指针会发生偏转，这就是温差发电现象。
关于这一现象，正确的说法是A.这一实验过程不违反热力学第二定律B.在实验过程中，热水一定降温、冷水一定升温C.在实验过程中，热水内能全部转化成电能，电能则部分转化成冷水的内能D.在实验过程中，热水的内能只有部分转化成电能，电能则全部转化成冷水的内能18、如图，有一理想变压器，原副线圈的匝数比为n，原线圈接正弦交流电压U，输出端接有一个交流电流表和一个电动机，电动机线圈电阻为R。
当输入端接通电源后，电流表读数为I，电动机带动一重物匀速上升，下列判断正确的是A.原线圈中的电流为nIB.变压器的输入功率为UI/nC.电动机消耗的功率为IRD.电动机两端电压为IR19、一列简谐横波沿x轴传播，已知平衡位置在原点O处质点的振动图象如图a所示，该波在t时刻的波形图线如图b所示，则在t＋0.7s时刻的波形图象可能是2图（a）图（b）20、如图所示，物块B的质量为m，与地面的动摩擦因数为?；生物试题联盟期待你的加入，你给我一滴水，我将还你一片海！感谢您的阅读，祝您生活愉快。