2020-2021学年度第一学期南昌市八一中学
高一英语10月份考试试卷
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. What is the weather like now?
A. Rainy.
B. Sunny.
C. Cloudy.
2. What is the man doing?
A. Having lunch.
B. Cleaning the yard.
C. Washing hands.
3. What does the man’s brother do now?
A. A cleaner.
B. A cook.
C. A waiter.
4. When does Tom’s party begin?
A. At 3:30.
B. At 7:00.
C. At 7:30.
5. Where does the woman need to go next?
A. To a store.
B. To a park.
C. To a gas station.
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 are the speakers talking about?
A. The school project.
B. The weather.
C. Some photos.
7. What photo will the boy show his teacher?
A. Photos of the clouds.
B. Photos of the stars.
C. Photos of the moon .
听第7段材料，回答第8、9题。
8. Why did the touring party play football on Friday?
A. To have a competition.
B. To know each other.
C. To have fun.
9. What did the man do on Sunday?
A. He learned to play basketball.
B. He had a running race.
C. He played volleyball. 听第8段材料，回答第10至12题。
10. Who is the man ?
A. A policeman.
B. A taxi driver.
C. A salesman.
11. What does the man want to do?
A. Return a wallet.
B. Pick up Richard .
C. Clean a car.
12. How did the man know where Richard lives?
A. He followed Richard.
B. Richard told him the address.
C. He knew the address from Richard’s card.
听第9段材料，回答第13至16题。
13. What did Pam’s hobby use to be?
A. Cycling.
B. Horse-riding.
C. Boating.
14. Which part of Pam’s body is badly hurt?
A. Her arms.
B. Her legs.
C. Her foot.
15. What will the woman do in the afternoon?
A. Visit Pam.
B. Buy some chocolate.
C. Read magazines at home .
16. What relation is the man to Pam?
A. Her classmate.
B. Her husband.
C. Her brother.
听第10段材料，回答第17至20题。
17. What language did the speaker learn from the teacher?
A. French.
B. English.
C.German.
18. What did the speaker’s course book look like?
A. It was very modern.
B. It had a red back cover.
C. It was full of pictures.
19. How does the speaker feel about having classes?
A. Bored.
B. Pleased.
C. Tired.
20. What do we know about the speaker?
A. She knew a lot of French.
B. She had some lessons at home .
C. She has a talent for learning languages.
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。
A
During the cold winter days, there are some interesting festivals（节日）in the world. Look at the following ones.
Harbin Ice and Snow Festival
Place: China
Time: January 5 to February 5
People build incredible things out of ice and snow, decorating them with lights.
The Carnival of Venice
Place: Italy
Time: between February and March
One of the most beautiful festivals in the world, people wear masks and elaborate costumes to hide differences among classes, and there are contests for the best costumers. Holi Festival
Place: India
Time: late February/March, on the last dull moon day
Hindus and Sikhs, in India, Nepal, and Sri Lanka celebrate the main day of this incredibly fun 16-day festival by throwing colored powder and water at each other.
Sundance Film Festival
Place: Utah, the US
Time: end of February
The largest independent film festival in the US. Watch both feature films and shorts. You need to buy a ticket.
21．Which of the following festivals can't be celebrated at the end of February? A．Sundance Film Festival. B．Harbin Ice and Snow Festival.
C．Holi Festival. D．The Carnival of Venice.
22．If you want to watch wonderful films, you may go to .
A．India B．China
C．America D．Italy
23．If you go to Europe, which festival can you celebrate?
A．Sundance Film Festival. B．Holi Festival.
C．The Carnival of Venice. D．Harbin Ice and Snow Festival.
B
Two men were sitting together in a plane. They were on a long journey. One of the men was a businessman. The other was a farmer. They sat without talking for a while, then the farmer said, “Let’s do something to pass the time.”
“What do you want to do?” the businessman asked, “We can ask each other riddles.”The farmer said, “You start.”“Let’s make the rules first, ”the businessman said, “That’s not fair. You are a businessman with much knowledge. You know more things than I do. I am just a farmer.”
“That’s true.”The businessman said.“What do you want we should do?”“If you don’t know the answe r to a riddle, you pay me $100. And if I don’t know the answer, I’ll pay you $50.”The farmer said. The businessman thought about this, then he said, “OK. That’s fair. Who will go first?”
“I will,” The farmer said.“Here is my riddle. What has three legs whe n it walks, but only two legs when it f lies?”The business man repeated the riddle, “What has three legs when it walks, but only two legs when it flies? Mm, that’s a good one. I’m afraid I don’t know the answer.”He gave the farmer $100,then said，“Tell me the answer. What has three legs when it w alks, but only two legs when it flies?”“I don’t know.”The farmer said and gave him $50.
24. The story happened .
A. in a company
B. on a farm
C. between two passengers
D. before a long plane journey
25. What does the word “riddle” mean in this stor y?
A. A kind of game in doing business.
B. Something to help to make rules.
C. Something to win money.
D. A question that is difficult to answer.
26. Why did the businessman agree to give more money if he lost?
A. He made much more money than the farmer.
B. He was better at playing riddle games.
C. He was interested in making riddles.
D. He thought he knew more than the farmer.
27. From the passage, we know the farmer .
A. had a good time on his long journey.
B. didn’t want to pay even one dollar
C. won fifty dollars by playing the riddle game.
D. spent all his money on the plane ticket.
C
For many years the school system in Finland has been very successful. In the PISA survey, which compares reading, math and science knowledge of 15-year-olds around the world, Finland is not only the top European country but also competes (竞争)with Asian giants（巨人）like Shanghai, Singapore and South Korea. But what makes the educational system in this small country so different from others in the western world?
Until the 1960s Finland’s school system had been influenced largely by its neighbor, the Soviet Union（苏联）. Most students left school after six years; some went on to private schools. Only the wealthy ones got a better education. In the middle of the 1960s the Finnish government saw the need to change and modernize their education system if they wanted to be internationally competitive. Lawmakers made a simple decision: a basic school for all the 7- to 16-year-olds. Compulsory education（义务教育）begins at 7. The government makes it possible for all children to attend preschool as well.
Most of Finland’s schools get their money from the government. The people who are in charge of the education system, from teachers to officials are trained teachers, not politicians （政治家）like in other countries.
Teachers work with their pupils in school as much as possible. When teachers are not with the pupils, they spend a lot of time in schools working on the curriculum and new projects. Schools in Finland are small, at least for international standards. So teachers know every pupil in their school and try everything to succeed with their pupils. That is why dropout（辍学）rates are low compared to other countries. In contrast to（比较）other nations, teachers in Finland are highly respected. Finland selects its teachers very carefully: only talented students go on to a university and receive a master’s degree in education. Finland only takes the best to
educate its youth.
All Finnish children, whether they come from the city or the country, whether from a rich or poor family, have the same chances in education. There are not so many differences between the wealthy and poor, as in America or other western European countries. Education experts say that there is very little difference between very good and the worst students. Two thirds of Finnish pupils move on to higher education, the highest rate in the European Union.
28. What can be the best title for the text?
A. What Differences European Schools Have
B. What Good Schools Provide Students with
C. Why Finland’s School System Has Changed
D. Why Finland’s School System Is Successful
29. What did the Finland government do in the middle of the 1960s?
A. They encouraged students to go to private school.
B. They changed the school system.
C.They lengthened preschool education.
D. They learned modern education from neighboring countries.
30. We can learn from the text that ______________.
A. the children in Finland attend preschool at the age of six.
B. the children in Finland have equal opportunity to receive education.
C. the school system in Finland is better than that in Singapore.
D. the school equipment in Finland doesn’t meet international standards.
31. The author mentions Shanghai, Singapore and South Korea to show________.
A. the school system in Finland has been very successful
B. Asian countries are successful in school education
C. students in these places are better than those in European countries
D. the educational system in Asia is different from that in the western world
D
By now, most people know they should be eating more vegetables. But are there ways to get more from the vegetables you already eat? A research shows that when it comes to vegetables, it's not only how much we eat, but also how we prepare them, that decides the vitamins and other nutrients that enter our body.
Many studies show that people who eat lots of vegetables have less heart disease, and eye problems and even cancer. But raw vegetables are not always best. The researchers found that 198 Germans who eat raw food were short of lycopene（番茄红素）, the matter found in tomatoes and other red vegetables. “There is an idea that raw foods are always going to be better,” says Steven K. Clinton, a professor at Ohio State University. “For fruits and vegetables, sometimes a little bit of cooking can be helpful.”
A number of factors decide how the vegetables do good to people's health before they reach the table, including where and how they were grown and stored before being bought. No single cooking way is best. Some nutrients are easily lost in cooking if they are cooked in different ways.
Vitamins C and B are often lost. In January, another report said that boiling was better for carrots than frying or serving them raw. Frying was the worst way to cook.
What cooked with the vegetables can also be important? When the vegetables were cooked with fat, the diners can get more nutrients. Fat can also make the taste of vegetables better, meaning that people will eat more of them. Putting on some other things that make it taste better—a little salt—can make the food taste better.
32. The writer mainly wants to tell us that ________.
A. people should eat more vegetables
B. the way people eat vegetables is important
C. eating vegetables is good for us
D. how much vegetables one should eat
33. The people who eat the raw vegetables for a long time will ________.
A. be in need of lycopene
B. have heart disease
C. have the eyes problems
D. hate eating tomatoes
34. The following decide how the vegetables do good to people EXCEPT ________.
A. the way how the vegetables are prepared
B. the way how the vegetables are stored
C. the place where the vegetables are grown
D. the price at which the vegetable are sold
35. From the last paragraph, we can know ________.
A. the fat will increase the nutrition of the vegetables
B. the more fat in the cooking, the fewer vegetables people will eat
C. it's better to cook the vegetables without salt
D. it's better to cook vegetables with the fat
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。
While it's wonderful to share a special trip and new experience with friends or family, there's an attractive case for travel alone from time to time. Solo（单独的）travel can work for anyone, and here are good reasons why you should try it.
You needn't discuss with others.
It can be challenging（挑战性的）to talk over a trip and time away from work with another busy person in your life. 36 Usually, these challenges can be overcome by simply planning far in advance. However, if you can’t find a travel partner on short notice, it may be the perfect excuse to pack your bags and go anyway.
You’re your own great company（同伴）.
If you rarely spend significant time alone, you may be surprised at how enjoyable it can be. 37 Depending on the destination, a solo trip can be a powerful and life-changing experience. Imagine sitting on a peaceful beach at sunset or taking an inviting morning hike alone. 38．
Meet new people.
If you are a born open person, traveling alone can be a wonderful way to meet locals and make new friends. Often, people who are alone appear more approachable（亲近的）to others.
39 You could even join a group of like-minded people for yoga on the beach. The key is to keep an open mind while keeping safety in mind, especially in a foreign land.
40
For some reason, service at hotels an d restaurants seems better when you’re traveling alone. People tend to admire those who travel by themselves.
A. Do everything you want.
B. Just accompany yourself.
C. Enjoy great service.
D. You could be chatting with some interesting folks at a sidewalk cafe.
E. If things don' t go well,the entire trip can be terrible.
F. And it’s even more difficult when you try to make plans with a group.
G. You can enjoy such a hike without making conversation with anyone.
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。
On a cold winter evening, I was walking home, tired and hungry, when suddenly came screams (呼喊声) from behind some trees. 41 , I slowed down to listen, and 42 that what I was hearing were the sounds of a fight. A woman was being 43 not far from where I stood.
“Should I go to help her?” I thought. I was worried about my own44 , and I regretted having suddenly decided to take a new way home that nig ht. “What if I’m45 too? Shouldn’t I just46 to the nearest phone and call the police?” But already the girl’s 47 were growing weaker. I knew it was time for me to act fast because I could not 48 to the life of this unknown woman 49 it meant risking my own life.
I am not a 50 man. I didn’t know where I found the51 and physical strength (体力), but once I had finally 52 to help the girl, I became suddenly changed. I ran behind the bushes and 53 the attacker off the woman. Struggling, we fell to the ground, where we fought for a few minutes 54 the man jumped up and escaped.
55 heavily, I stood up and came up to the girl, who was crying behind a tree. In the
56 ，I could not see her clearly, but I could certainly 57 her shock. Not wanting to frighten her any further, I at first spoke to her from a distance.
“It’s OK,” I said58 . “The man ran away. You’re safe now. ”There was a long stop and then I heard the words, said in both wonder and 59 . “Dad, is that you?” And then, from behind the tree, stepped my youngest 60 , Katherine.
41．A. Frightened B．Excited C．Interested D．Disappointed 42．A．knew B．understood C．imagined D．realized 43．A．killed B．attacked C．robbed D．caught 44．A．money B．future C．safety D．family
45．A．glad B．sad C．hurt D．excited 46．A．move B．walk C．go D．rush
47．A．sounds B．noises C．cries D．cheers
48．A．pay no attention B．look forward
C．make a decision D．make a complaint
49．A．because B．although C．as D．but
50．A．kind B．powerful C．brave D．mean
51．A．belief B．courage C．attitude D．hope
52．A．agreed B．planed C．determined D．promised 53．A．took B．dropped C．got D．pulled 54．A．unless B．after C．until D．since 55．A．Walking B．Drinking C．Fighting D．Breathing 56．A．daylight B．afternoon C．midnight D．darkness
57．A．see B．feel C．guess D．find
58．A．loudly B．angrily C．softly D．happily 59．A．surprise B．pain C．shame D．peace
60．A．cousin B．son C．daughter D．grandson
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。
One of the most 61 (relax) way to travel is a cruise. I went 62 a voyage with my family right before I started college.It was so enjoyable 63 when it came time to head home, I didn’t want to leave. A cruise was pretty much everything I thought it would be.But who would have known that could be so 64 (many)fun!
Everything is 65 (take) care of for you, and you just need to show up for dinner. You can enjoy amazing food in the ship’s many dining rooms and have 66 wonderful ocean view every day. It was filled with buffets, lots of drinking, and large amounts of time at the pool.
You can experience 67 (usual) local cultures when the ship stops at different seaside destinations . Of course, if the ship stays at a city for several days, you can even check in at a local hotel for a few nights, so you can see more of the local 68 (sight).
Not only did I find the whole experience fascinating and a great opportunity to people-watch, but I actually liked being on the ship itself. I was 69 (determine) to step
foot on another cruise ship after 70 (graduate)from college.
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。
The World Wide Web, was invented in 1991 by an English scientist, Tim Berners-Lee, is a computer network that makes the information from million of websites accessible to computer users. Berners-Lee built his own computer at university use his old television. It is the first time that he had come up with the idea of the World Wide Web in 1989 while he was working in Switzerland. In present, about 80 % of web traffic is in English, but this percentage is going down. By 2030, much web traffic could be Chinese. Obviously, it was Berners-Lee who made that possible for everyone to use the Internet. He designed the first “web browser”, what allowed computer users to access documents from other computers. With the web and the Internet growing, a number of Internet users rose rapidly from 600,000 to 40 million within 5 years. So far, the Internet was created thousands of millionaires all over the world, but Berners-Lee is not one of them.
第二节书面表达（满分25分）
假定你是英语报纸English Corner 栏目的编辑李华。现在有一名叫小明的学生向你请教如何学好英语。请你以书信形式给他几条建议，内容包括：
1.每天早上大声朗读英语；尽量多记一些有用的句子并背诵一些短文章；
2.经常进行大量英语课外阅读；
3.每天安排一些时间进行听力练习；
4.只要你能充分利用你的业余时间来学习英语，就会很快得到提高。
注意：1．词数100左右；2．可以适当增加细节，以使行文连贯
2020年南昌市八一中学高一10月份考试英语试题参考答案
第一部分听力1-5 CBCBA 6-10 ACBAB 11-15 ACBCA 16-20 CBABC
第二部分阅读理解
第一节（共15小题；每小题2分，满分30分）
21-23 BCC 24 -27 CDDC 28-31 DBBA 32-35 BADD
第二节（共5小题；每小题2分，满分10分）36-40 FBGDC
第三部分语言知识运用
第一节完形填空（共20小题；每小题1.5分，满分30分）
41?45 ADBCC46?50 DCABC51?55 BCDCD56?60 DBCAC
第二节（共10小题；每小题1.5分，满分15分）
61. relaxing 62. on 63. that 64. much 65. taken
66. a 67. unusual 68. sights 69. determined 70. graduating/graduation
第四部分写作
第一节
或者加which
第二节
Dear Xiao Ming,
I am an editor of English Corner. I’ve received you r letter asking me to give you some advice on how to learn English well. Here are some of my suggestions.
First of all, I suggest you read the English words,sentences and short articles aloud every morning. Meanwhile, you should try to memorize the useful sentences as many as possible and recite some short passages as well. Moreover, it is suggested that you read a great variety of books after school. Last but not least, a certain amount of time should be spent on listening exercise.
As long as you can make good use of your spare time to learn English, surely, you will make rapid progress. Just as the saying goes, “Where there is a will, there is a way.” If you stick to your dream and study hard, I’m sure you will be successful in your English study.
Looking forward to your good news!
Yours,
Li Hua
第I卷（选择题） 一、单选题 1.科学家在利用无土栽培法培养一些名贵花卉时，培养液中添加了多种必需的化学元素,其配方如下表： 其中植物根细胞吸收量最少的离子是 A．Ca２+ B.Ｈ2PO3— C. SO42— D．Ｚn2+ 2.关于细胞中元素的叙述,错误的是 A.番茄和水稻根系吸Si元素的量有差异 B.在人体活细胞中氢原子的数目最多 C.地壳和活细胞中含量最多的元素都是氧元素，由此看出生物界和非生物界具有统一性 D.在人体细胞干重中C元素含量最多,是因为细胞中含有大量的有机化合物 ３。用含32P的磷酸盐培养液培养动物细胞,一段时间后，细胞的结构以及化合物中具有放射性的是 ①脱氧核糖 ②细胞核 ③DＮＡ ④核糖 ⑤RNA Ａ．①③ B.①③⑤ C.②③⑤Ｄ.②③④⑤ ４.对下面柱形图的相关含义叙述中，不正确的是A.若Y表示细胞中有机物的含量，ａ、ｂ、c、d表示四种不同的物质,则b最有可能是蛋白质 B.若Y表示组成活细胞的元素含量,则a、b、c、d依次是N、O、H、Ｃ Ｃ．若Y表示一段时间后不同离子在培养液中所占原来的比例，则该培养液中培养的植物,其根细胞膜上ａ离子的载体少于c离子的载体 D．若Y表示细胞液的浓度,ａ、b、c、ｄ表示不同细胞，则在0。３ｇ／ｍL蔗糖溶液中，发生质壁分离的可能性大小为b 2018高一新生分班考试英语试题(1) I.单项填空（共20小题；每小题1分，满分20分） 1. She is worried ______ her son’s eyesight because he often plays online games. A. about B. for C. with D. of 2. — Got any information about buying the Olympics Opening Ceremony tickets online? ----Well, I was trying to, but found _____. A. some B. none C. nothing D. no one 3. When I can’t understand ______, I always raise my hand to ask. A. what the teacher says B. how the teacher says C. what does the teacher say D. how does the teacher say 4. — Who writes _______ in your class? — Kate does, of course. A. more carefully B. the most careful C. the most carefully D. more careful 5. — Two Yangtze Evening Paper, please! — Only one copy left. Would you like to have ______, sir? A. one B. it C. this D. them 6. —Are you sure you have to? It’s been so late. —I don’t know _______ I can do it if not now. A. when B. how C. why D. what 7. Which do you enjoy ______ your coming weekend, going touring or staying at home? A. spending B. to spend C. spend D. spent 8. — What do you think the weather is like today? — It’s still a little bit cold, though not so ______ as yesterday. A. cold B. colder C. coldest D. much colder 9. I’m good at Chinese ______ my sister does very well in English. A. while B. when C. because D. as 10. I was born ______ a warm spring afternoon of 1992. Now I am 16 years old. A. at B. in C. on D. to 11. Please come to me _______ you need my help. A. wherever B. whatever C. whenever D. however 12. — _____ will your father be back? I have something important to tell him. — Perhaps in two days, I think. A. How long B. How far C. How soon D. How much 13. Mike _______ very hard. When I saw him at eleven last night, he was still studying in his room. 江西省南昌市南昌二中2020-2021学年九年级 （上）期中考试物理试题 学校_________ 班级__________ 姓名__________ 学号__________ 一、填空题 1. 物理学的发展离不开广大物理学家不懈的探索和无私的奉献，为了纪念杰出的物理学家，人们将物理学家______的名字命名为电阻的单位，以物理学家 ______的名字命名为内能的单位。 2. 将丝绸摩擦过的玻璃棒去接触不带电的验电器的金属球，就有一部分 ______(选填“正电荷从玻璃棒移到金属铂’或‘电子从金属箔移动到玻璃棒”)上，两箔片就张开，如图所示，则两箔片带上的是______(填“正”或“负”) 电荷。 3. 如图所示是汽油机工作时的各种冲程示意图，其中表示为内能转化为机械能的冲程是图______，若它的飞轮转速为1800r/min，则该汽油机每秒对外做功 ______次。 4. 青少年在安静地思考问题的时候，心脏推动血液流动的功率约为，则 你在考试的内，心脏做功约为________J，相当于一个体重的人 登高_______m。 5. 新冠肺炎疫情中，每天要对市区环境进行消杀杀菌。一辆正在喷洒消毒液的汽车匀速行驶在水平街道上，汽车的总动能将逐渐_________，机械能将 __________。（均选填“变大”“变小”或“不变”） 6. 把图钉帽在课桌上来回摩擦几下后，图钉帽热得烫手，这是用______的方法改变了物体的内能；把瓶装水放在冰箱里，一会儿变凉了，这是用______的方法改变了物体的内能． 7. 如图甲所示的电路中，当闭合开关后，两个电压表指针偏转均如图乙所示， 则电灯L 1和L 2 两端的电压分别为_______V和 _________V． 8. 如图所示，小强在30s内用滑轮组将物体A沿水平方向匀速移动6m，已知物体A重800N，它受到的摩擦力为60N，小强所用的拉力为25N，则A的重力 做功______J，此滑轮组的机械效率为______。 9. 某段金属丝两端电压为6V时，通过的电流为0.3A；当该金属丝两端电压降为4V时，通过它的电流为_____A；当该金属丝两端电压降为0V时，它的电阻为_____Ω． 10. 两个电阻R1=6Ω，R2=4Ω，串联起来接入电路，通过它们的电流之比 I 1 ∶I2=_________，若把R1、R2并联接入电路，则此时通过它们的电流之比 I 1 '∶I2'=_________。 二、单选题 11. 下列说法正确的是（） A．做功越多，功率越大B．做功越快，功率越大 C．功率越大的机械越省力D．功率越大的机械效率越高 12. 如图所示是一个两面光滑的斜面，∠α小于∠β，同一个物体分别在AC 和BC受拉力匀速运动到C点，所需的拉力分别为F A和F B所做的功分别为W A和 南昌市小学排名： 1、南昌育新学校小学部 2、南昌师范附属实验小学 3、南昌站前路小学 4、南昌市邮政路小学 5、南昌市豫章小学 6、江西师大附小 7、南昌市珠市小学 8、南昌市松柏小学 9、南昌大学附属小学 10 南昌铁路一小 11 南昌百花洲小学 12 南昌羊子巷小学 13 江医附属小学 关于小学本不应该谈排名，因一个没小升初统一考试没实际数据，另一个应该不提倡择校，本人也觉得小学没必要择校。你看每年外国语和少年班录取的学生，那个学校都有，很多大家认为的烂校都有考取的学生，也没那所好小学在考外国语和少年班取得绝对优势。再者坛子里有很多小学老师，她们比我更清楚南昌小学现状。只不过有些学校骗钱太过份了，家长要注意管好自己的钱袋子。我的排名对某些学校不准确欢迎大家讨论批露更多的消息，我保证下列信息是真实的。 首先不比新校区，只比老校区。不比过去和未来只比近几年。 南昌官方的信息: 第一批南昌市名校:南师附小、育新学校、站前路小学 南昌市邮政路小学、南昌市珠市小学为第二批南昌市名校。 第三批南昌市名校:南昌市豫章小学、南昌市松柏小学 通过官方评选的顺序，上面七所名校可以肯定是南昌市除企业大学所属小学外的前七名。而且肯定是第一批名校比第二批强，第二批比第三批强。因每一次评选，每一个区只能推荐一所小学。豫章路小学的特殊地理位置，肯定比珠市和松柏获得更多的官方照顾，所以排名靠前。 其他学校我不评价，只评第一批三所名校和南大附小和师大附小五所最热的小学。根据是亲身体会和在超越学校休息室家长谈话得出，采用PK淘汰法第一个OUT的是南大附小，一家长讲，她家住青山湖旁，有钱准备女儿大了去英国留学。小孩读一年级时听说南大借读费最高，是最好的小学，离家又近找人交钱。因本人有钱又有路子进入最好的班，校长拍胸脯说该班是最好的班。该妈妈比较能干精明，会到处打听老师的情况，结果发现语文老师是一位照顾进校，因老公是南大引进人才，老婆没地方安排就放在小学教一年级，最要命的是该语文老师满口某县城土话。这一年级拼音能教准吗?班主任二十多岁时髦女性，待人接物都不错。小女孩经常和妈妈说我们老师打扮的好漂亮哦，搽粉抹口红，还穿露肚济眼的衣服。妈妈一开始没在意，听多了就觉的太奇怪了，年轻老师一两次这样打扮这样新潮也可理解，整天这样就有问题啊，于是托人了解该老师，结果大跌眼镜，该女孩是校长的外甥女，学历是涵授的大专，还是艺术类的。呵呵。第二学期重新花钱转到育新读一下，她说师资还不错，女儿学的也还好。本人也有亲戚有一男一女两小孩从花高价一年级一直读到高中毕业，确实学得很差，大专都考了两年才考上还是改考考舞蹈。也可能是我亲戚小孩太差吧。但南大的初中，高中都很一般，学生很多是小学，初中，高中一条龙学上来的。所以说南大附小是山寨版的水货，不值那么多择校费。没办法，谁叫青山湖那片没好的 公立学校呢?该人家学校发财啊。 高一(下)英语入学测试题 考试时间：120分钟试题满分：150分 第Ⅰ卷 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，你将有两分钟的试卷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，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. Who is coming for tea? A. John. B. Mark. C. Tracy. 2. What will the man do next? A. Leave right away. B. Stay for dinner. C. Catch a train. 3. What does the man come for? A. A lecture. B. A meeting. C. A party. 4. What size does the man want? A. 9. B. 35. C. 39. 5. What are the speakers talking about? A. Life in Southeast Asia. B. Weather conditions. C. A holiday tour. 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。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 is the man doing? A. Giving a speech. B. Chairing a meeting. C. Introducing a person. 7. Why does the woman sing so well? A. She has a great teacher. B. She teaches singing. C. She is young. 听第7段材料，回答第8、9题。 8. What is the second gift for Jimmy? A. A car. B. A watch. C. A computer. 9. Why does Jimmy feel happy? A. He lives with his parents. B. He’s got what he dreamt of. C. He’s received lots of presents. 听第8段材料，回答第10至12题。 10. What is the relationship between the speakers? A. They are friends. B. They are strangers to each other. C. They are husband and wife. 11. Why does the woman come to talk with the man? A. To get a job. B. To take a test. C. To see the secretary. 【最新】江西南昌二中高三上三模地理试卷学校:___________姓名：___________班级：___________考号：___________ 一、单选题 某学校地理兴趣小组做了如下实验：做两个相同规格的玻璃箱（如下图），甲底部放一层土，中午同时把两个玻璃箱放在日光下，十五分钟后，同时测玻璃箱里的气温，结果发现底部放土的比没有放土的足足高了3℃。据此回答下列各题。 1．该实验主要目的是测试（） A．大气的温室效应 B．大气的热力运动 C．一天中最高气温出现的时刻 D．大气主要的直接热源 2．甲箱温度比乙箱温度高的原因是（） A．太阳辐射强弱差异 B．地面辐射强弱差异 C．大气吸热强弱差异 D．大气辐射强弱差异 读“某年11月7日(立冬)我国大陆部分各地季节状况图”，回答下面小题。 3．形成图中我国各地在同一天出现有三种季节的主要原因是( ) A．海陆热力性质差异B．地形地貌地区差异 C．各地纬度差异大D．各地经度差异大 4．立冬日，南部沿海地区仍处在夏季的主要原因是( ) A．位于低纬，太阳高度小B．南岭阻挡弱冷空气南下 C．临海比热容大，气温高D．刚好有台风登陆，气温高 5．此时由西南到长江以南地区形成大范围降雨，其形成原因最可能是( ) A．受副热带高压控制B．锋面在附近活动 C．山地抬升偏北风D．受台风登陆影响 下图表示我国地理“四极”特征变化趋势图,据此回答下列各题。 6．下列因素对“四极”形成影响不大的是( ) A．纬度位置B．海陆位置C．地形起伏D．洋流 7．影响图中甲地区农业发展的直接限制性因素是( ) A．光照弱B．气温低 C．降水少D．冻土分布广 下面是一幅世界地图的一段纬线，P点以东是海洋，Q点以西是海洋，S和T 之间为某一海域。 判断下列各题。 8．S～T之间的海域是( ) A．波斯湾B．墨西哥湾C．红海D．莫桑比克海峡9．实际观测表明，P海岸降水明显多于T海岸，其主要影响因素是( ) A．洋流B．地形C．季风D．气压带、风带 一、选择题（本大题有２4小题，每题2分，共48分。请在每题所列的四个选项中选出最符合题目要求的一个选项,答案填在答题卡上) 1.战国秦汉时期,北方一直是全国的经济重心,但是到了魏晋南北朝时期，中原经济区独占鳌头的局面不复存 在了，原本落后的江南经济区获得了显著发展,使长期以来的南北经济发展不平衡性与悬殊性缩小了。 这说明魏晋南北朝时期（) A．江南经济发展水平迅速超过北方Ｂ.江南经济开发的新格局初步形成 C．中原经济区的优势地位不复存在D．全国的经济重心已经转移到南方 2．图是近年出土的西汉海昏侯（汉武帝之孙刘贺，史称汉废帝）墓葬中的两枚印章。除此之外,还出土了数量惊人的金器、青铜器、铁器、玉器、漆木器、纺织品、陶瓷器等珍贵文物,以及大量竹简、木牍。 对此认识正确的是（) A. 从图上文物字体可见篆体依然是当时的主流通行字体 B. 从墓葬的规格可见当时王国问题对中央集权威胁巨大 C. 该墓葬出土的精美器皿大多出自官营手工业工匠之手 D. 该墓葬的竹简木牍有可能记载着儒家和佛教思想精髓 3.某《竹枝词》云:“脚痛腰酸晓夜忙，田头车戽响浪浪。高田车进低田出,只愿高洼不做荒。”这首词描写的灌溉工具是( ） A．耧车 B.翻车C．筒车Ｄ．风力水车 4.明万历年间,福建泉州府佃农“朝登垅亩,夕贸市廛”；浙江秀水县佃农用上等米换白银,用中下等米来抵 租。这一现象的出现突出反映了:（） A．农村资本主义生产关系初步发展B．农民反封建斗争的水平提高 C．农民能够支配自己全部的劳动产品?D．农业与市场的经济联系加强 5、东汉光武帝刘秀的舅父占有田地面积达３0０余顷;东晋宰相谢安占有水陆地２65顷，含带两山；明皇庄土地面积达37000多顷。这种现象的根源是( ） A.土地兼并Ｂ.豪强地主拥有强权 C.国家授田 D.土地私有 6．西周时“一人跖(踏)耒而耕,不过十亩”; 战国时“一夫挟五口，治田百亩”。引起这一变化的根本原因是( ） A. 公田变为私田B．铁器牛耕的推广C．国家走向统一D．封建制度的确立 ７.某电视剧以西汉的历史为背景,其间很多故事情节发生于长安“市”上,以下是电视剧中西汉“市”的场景,其中不符合历史真实的是( ) A.“市”的四面建有围墙 B.“市”门内外店铺林立 C.“市”里有专职管理的官员D．“市”门在白天定时开关 ８.汉乐府《孔雀东南飞》中焦仲卿妻身上的打扮是“妾有绣腰襦,葳蕤自生光。”床上的装饰是“红罗夏斗帐，四角垂香囊。香帘六七寸,碧绿青丝绳。”这些描述可以反映出（） Ａ.汉代丝织业生产的普及和发达的程度 B．中国古代男尊女卑思想严重,女子备受压迫，日夜操劳 江西省南昌市八一中学2013-2104学年高二下学期期末考试生物试题 第一部分选择题 一、选择题（每小题只有一个正确答案，1—10每小题1分，11—25每小题2分，共40分。） 1、采用基因工程技术将人凝血因子基因导入山羊受精卵，培育出转基因羊。但是人凝血因 子只存在于该转基因羊的乳汁中。以下有关叙述，正确的是[ ] A．人体细胞中凝血因子基因编码区的碱基对数目，等于凝血因子氨基酸数目的3倍B．可用显微注射技术将含有人凝血因子基因的重组DNA分子导入羊的受精卵 C．在该转基因羊中，人凝血因子基因存在于乳腺细胞，而不存在于其他体细胞中 D．人凝血因子基因开始转录后，DNA连接酶以DNA分子的一条链为模板合成mRNA 2、如图为某哺乳动物生殖过程示意图(b为卵细胞)。下列相关叙述中不 正确的是[ ] A.动物个体①②的产生分别属于有性生殖和无性生殖 B.动物个体②的产生表明，高度分化的动物细胞核也具有发育成完整 个体的潜在能力 C.按照动物个体②的产生方式，后代的性别比例仍为1∶1，但这对于 动物的进化则是不利的 D.图中a、b、c三种细胞的产生方式，仅c为有丝分裂 3、下列关于生物专一性的叙述不正确的一组是[ ] A．酶具有专一性，一种酶只能催化一种或一类化学反应 B．基因工程操作中的载体具有专一性，一种载体只能运载一种特定的目的基因C．tRNA具有专一性，一种tRNA只能运载一种特定的氨基酸 D．细胞膜上的载体具有专一性，一种载体只能转运一种或一类物质通过细胞膜 4、下列关于生物工程技术的叙述中，正确的是[ ] A．用同一种限制酶分别作用于正常基因和它的突变基因，其结果可能不同 B．在离体植物细胞转变为愈伤组织的过程中体现了细胞的全能性 C．选取一定数量的B淋巴细胞进行增殖培养，即可获得有关的单克隆抗体 D．某种植物甲乙两品种的体细胞杂交后代与甲乙两品种杂交后代的染色体数目相同5、下列关于基因文库的说法中，不正确的是[ ] A．某果蝇X染色体上的所有基因组成的文库是部分基因文库 B．取出果蝇某细胞中全部mRNA，通过反转录产生的全部DNA片段称为该果蝇的基因组文库 C．cDNA文库中的基因可以在不同物种间进行交流 D．可以根据基因的碱基序列、基因的转录产物mRNA，以及基因的表达产物蛋白质等特性获取目的基因 6、既可用于DNA重组技术又可用于细胞融合技术的是[ ] A.病毒 B.纤维素酶 C.聚乙二醇 D.质粒 7、我国引进良种红安格肉牛后，使其快速繁殖使用的方法有[ ] ①发酵工程②组织培养③基因工程④克隆⑤细胞工程⑥体外受精和胚胎 移植 A. ①③ B. ②④ C. ④⑤ D. ④⑥ 8、在植物细胞工程的技术中,无需激素调节的是[ ] 一、选择题（1－24题,每小题１分；25－３０题,每小题２分，共36分。每题均只有一个正确选项） 1.若呼吸底物全为葡萄糖,下列关于人体呼吸作用的叙述，正确的是 Ａ．８００ｍ慢跑过程中O２吸收量大约等于CO２释放量 B.马拉松比赛时消耗等量葡萄糖放出的能量比步行时多 C．环境温度从0℃升到37℃，人体呼吸作用相关酶的活性逐渐上升 Ｄ.包扎伤口应选用透气性好的“创可贴"，主要目的是保证伤口处细胞的有氧呼吸 2.当酵母菌以葡萄糖为呼吸底物时,下列叙述正确的是 A.如果检测有ＣO２释放量，则说明酵母菌进行有氧呼吸 B．如果测得CO２释放量：O2吸收量等于１：1,则说明酵母菌只进行有氧呼吸 C.如果测得呼吸作用的过程中没有产生水，则产物中也不会有CO２ D．检测酒精可用重铬酸钾，溶液的颜色由灰绿色变为橙色 3．光合作用是生物界中重要的物质与能量代谢，下列有关叙述正确的是 A.给绿色植物提供含有Ｈ２18Ｏ的水,含1８Ｏ的物质只有释放出来的O２ B.根据光合作用释放的O2量,可以推算出光合作用中有机物的积累量 C.停止光照,暗反应很快会停止，而停止供应ＣO2则光反应不受影响 D．生产生活中,温室大棚普遍采用红色的塑料薄膜来提高作物产量 4．某科研小组为探究酵母菌的细胞呼吸方式，进行了如图所示实验(假设细胞呼吸产生的热量不会使瓶中的气压升高),开始时溴麝香草酚蓝水溶液的颜色基本不变，反应一段时间后溶液颜色由蓝变绿再逐渐变黄。下列有关分析正确的是 A.溴麝香草酚蓝水溶液颜色由蓝变绿再变黄说明酵母菌在不断地产生CO２ B.溴麝香草酚蓝水溶液的颜色一开始不变是因为酵母菌只进行了有氧呼吸 2020年秋季高一新生入学分班考试英语试卷（全国 通用版）卷01 学校_________ 班级__________ 姓名__________ 学号__________ 一、单项选择 1. Our school _____ us ______ hot water every day. A．provides; for B．offers; to C．provides; with D．offers; with 2. Although you may meet some difficulties, you should never ________. A．turn up B．get up C．give up D．grow up 3. It's warm inside. Why not ______ your coat? A．take away B．take up C．take down D．take off 4. Mike, can you go and ________ how many flights there are from our city to London every day? A．work out B．look out C．give out D．find out 5. —Yan Jiashuo, a ________ girl, has won the prize of International Master of Memory. —Wow, she's great, isn't she? A．ten-year-old B．ten-years-old C．ten year old D．ten years old 6. I was floating ______ in a cloud in the sky. A．comfortable B．comfortably C．comfort D．uncomfortable 7. It is said that girls were born inside pink roses. The story comes from _____ European story. A．a B．an C．the D．/ 8. —After studying for a long time, you'd better stop to have a good rest. — Sounds like a good idea. Then I will be full of _______again. 2017-2018学年江西省南昌二中高二（上）期末数学试卷（理科） 一、选择题（本大题共12小题，每小题5分，共60分．每小题只有一个选项 符合题意．） 1．（5分）证明不等式“”最适合的方法是（）A．综合法B．分析法C．反证法D．数学归纳法2．（5分）命题“?x∈R，?a∈R，使得n＞|x﹣1|﹣|x﹣2|”的否定形式是（）A．?x∈R，?a∈R，使得n≤|x﹣1|﹣|x﹣2| B．?x∈R，?a∈R，使得n≤|x﹣1|﹣|x﹣2| C．?x∈R，?a∈R，使得n≤|x﹣1|﹣|x﹣2| D．?x∈R，?a∈R，使得n≤|x﹣1|﹣|x﹣2| 3．（5分）在复平面内，复数对应的点位于（）A．第一象限B．第二象限C．第三象限D．第四象限4．（5分）经过点（2，﹣4）且与双曲线有同渐近线的双曲线方程是（）A．B． C．D． 5．（5分）已知函数f（x）的导函数为f′（x），且满足f（x）=lnx+x2f′（1），则f′（1）=（） A．﹣1B．e C．﹣e D．1 6．（5分）设x，y，z都是正数，则三个数（）A．都大于2B．至少有一个不小于2 C．至少有一个大于2D．至少有一个不大于2 7．（5分）若关于x的不等式|x﹣2|+|x+a|＞4的解集为R，则实数a的取值范围为（） A．（﹣∞，﹣6）∪（2，+∞）B．（﹣6，2） C．（﹣∞，﹣6）∪（﹣2，+∞）D．（﹣6，﹣2） 8．（5分）在下列结论中，正确的结论为（） ①“p且q”为真是“p或q”为真的充分不必要条件 ②“p且q”为假是“p或q”为真的充分不必要条件 ③“p或q”为真是“￢p”为假的必要不充分条件 ④“￢p”为真是“p且q”为假的必要不充分条件． A．①②B．①③C．②④D．③④ 9．（5分）若不等式|2x﹣3|+|2x﹣5|＜4的解集为（a，b），则曲线与直线y=x﹣3及直线x=a，x=b所围成的封闭图形的面积为（） A．B．ln3C．D．ln3+2 10．（5分）已知函数f（x）=x3﹣3x，若过点M（3，t）可作曲线y=f（x）的三条切线，则实数t的取值范围是（） A．（﹣9，﹣8）B．（﹣18，18）C．（﹣18，6）D．（﹣6，6）11．（5分）若关于x的不等式k|x|﹣|x﹣2|＞0恰好有4个整数解，则实数k 的取值范围是（） A．B．C．D． 12．（5分）已知函数f（x）是定义在（0，+∞）的可导函数，f'（x）为其导函数，当x＞0且x≠1时，，若曲线y=f（x）在x=1处的切线的斜率为﹣1，则f（1）=（） A．B．0C．D．1 二、填空题（本大题共4小题，每小题5分，共20分） 13．（5分）已知a，b∈R，i是虚数单位，若a+2i=1﹣bi，则复数z=a+bi的模|z|=． 14．（5分）已知函数，则=． 15．（5分）在平面直角坐标系中，△ABC的顶点A、B分别是离心率为e的圆锥曲线的焦点，顶点C在该曲线上．一同学已正确地推得：当m＞n 江西省南昌市八一中学、洪都中学、十七中三校2019-2020学年高一数学10月联考试题 一、选择题（本大题共12小题，共60分） ；1,；1.；；下列五个写法：,2,2, ,其中错误写法的个数为( ) B. 2 C. 3 D. 4 A. 1 ) ,若则( 2. A. 1 B. C. 0或1 D. 0或1或 ABNfAnB 中的把集合都是自然数集,映射映射到集合3.中的元素设集合：和集合 f下,像20的原像是元素( ,则在映射 ) D. B. 4A. 2 C. 4 或 R( 则,集合集合 4.) 已知实数集,, C. B. D. A. 则5.的值为若( , , ) C. B. 5 A. 1 D. 则函数的定义域是( ,已知函数6. ) 的定义域为 B. A. C. - 1 - D. t 上的最大值为3,7.则实数已知函数在区间的取值范围是 D. A. C. B. 则不等式若,,且在区间上单调递增8.,已知函数为偶函数 的解集为 D. C. B. A. ) ( 9. 则实数已知函数,若, D. 4 C. 2 B. A. ) 10. 已知 ( ,则 D. A. 3 B. 9 C. 11.已知 D. C. B. A. kZ 即,,中被5除所得余数为12.在整数集的所有整数组成的一个集合称为“类”,记为 ；；,给出如下四个结论： ”其中正属于同一“类”,则“若整数；确结论的个数为 D. 4 A. 1 B. 2 C. 3 分）小题，共二、填空题（本大题共420- 2 - 计算：____13.． x ,用列举法表示为14.________．将集合, m 的取值范围是,则实数若函数在区间上是单调减函数15. ______． Ra的取值范围是函数,16.是则实数上的单调递增函数．______ 三、解答题（本大题共6小题，17题10分，其他12分，共70分） 江西省南昌市第二中学2014-2015学年高一上学期期中考试化学试题 1.“纳米材料”是粒子直径为1~100nm的材料，纳米碳就是其中一种，若将纳米碳均匀地分散到蒸馏水中，所形成的物质（） ①是溶液②是胶体③能产生丁达尔效应④能透过滤纸⑤不能透过滤纸 ⑥静置后会析出黑色沉淀 A.①④⑤ B.②③④ C.②③⑤ D.①③④⑥ 2.在体积相同的两个密闭容器中分别充满NO2、N2O4气体，当这两个容器内温度和气体密度相等时，下列说法正确的是（） A.两种气体的压强相等 B.两种气体N原子为12 C.两种气体的分子数目相等 D.两种气体的氧原子数目相等 3．设阿伏加德常数为N A，则下列说法正确的是（） A.常温常压下，11.2 LCH4中含有的氢原子数为2N A B.2.7 g铝与足量的盐酸反应，失去的电子数为0.3N A C.含有N A个氦原子的氦气在标准状况下的体积约为11.2L D.1 L 0.1 mol/L MgCl2溶液中含Cl-数为0.1N A 4．在25℃时,在一刚性容器内部有一个不漏气且可滑动的活塞将容器分隔成左右两室。 左室充入氮气,右室充入氢气与氧气的混和气体,活塞恰好停留在离左端的1/5处(图1),然后引燃氢、氧混和气体,反应完毕后恢复至原温度,活塞恰好停在中间(图2),如果忽 略水蒸气体积,则反应前氢气与氧气的体积比可能是 5.下列说法正确的是（） A.还原剂失去电子变成还原产物 B.氧化剂被氧化成还原产物 C.氧化剂是得到电子，发生还原反应的物质 D.还原剂是化合价下降得到电子被氧化的物质 6．能用H＋＋OH－＝H2O表示的化学反应是( ) A.氢氧化镁和稀盐酸反应 B.Ba(OH)2溶液滴入稀硫酸中 C.澄清石灰水和稀硝酸反应 D.二氧化碳通入澄清石灰水中 7.下列反应的离子方程式错误的是（） A.碳酸钙和稀盐酸反应： CaCO3＋2H＋===Ca2＋＋CO2↑＋H2O xx学校xx学年xx学期xx试卷 姓名:_____________ 年级:____________ 学号:______________ 题型选择题填空题简答题xx题xx题xx题总分 得分 一、xx题 （每空xx 分，共xx分） 试题1: 中子星是恒星演化过程的一种可能结果，它的密度很大。现有一中子星，观测到它的自转周期为T＝1/30s。向该中子星的最小密度应是多少才能维持该星体的稳定，不致因自转而瓦解。计等时星体可视为均匀球体。（引力常数G＝6.67×10－11m3/kg·s2） 试题2: 如图所示，在盛水的圆柱型容器内竖直地浮着一块圆柱型的木块，木块的体积为V，高为h，其密度为水密度ρ的二分之一，横截面积为容器横截面积的二分之一，在水面静止时，水高为2h，现用力缓慢地将木块压到容器底部，若水不会从容器中溢出，求压力所做的功。 试题3: 光滑水平面上放有如图所示的用绝缘材料料成的“┙”型滑板，（平面部分足够长），质量为4m，距滑板的A壁为L1距离的B处放有一质量为m，电量为+q的大小不计的小物体，物体与板面的摩擦不计，整个装置处于场强为E的匀强电场中，初始时刻，滑板与物体都静止，试求： （1）释放小物体，第一次与滑板A壁碰前物体的速度v1多大？ （2）若物体与A壁碰后相对水平面的速度大小为碰前的3/5，则物体在第二次跟A壁碰撞之前瞬时，滑板的速度v和物体的速度v2分别为多大？（均指对地速度） （3）物体从开始运动到第二次碰撞前，电场力做功为多大？（碰撞时间可忽略） 评卷人得分 试题4: 为了证实玻尔关于原子存在分立能态的假设，历史上曾经有过著名的夫兰克—赫兹实验，其实验装置的原理示意图如图所示.由电子枪A射出的电子，射进一个容器B中，其中有氦气.电子在O点与氦原子发生碰撞后，进入速度选择器C，然后进入检测装置D.速度选择器C由两个同心的圆弧形电极P1和P2组成，当两极间加以电压U时，只允许具有确定能量的电子通过，并进入检测装置D.由检测装置测出电子产生的电流I，改变电压U，同时测出I的数值，即可确定碰撞后进入速度选择器的电子的能量分布. 我们合理简化问题，设电子与原子碰撞前原子是静止的，原子质量比电子质量大很多，碰撞后，原子虽然稍微被碰动，但忽略这一能量损失，设原子未动（即忽略电子与原子碰撞过程中，原子得到的机械能）.实验表明，在一定条件下，有些电子与原子碰撞后没有动能损失,电子只改变运动方向.有些电子与原子碰撞时要损失动能，所损失的动能被原子吸收，使原子自身体系能量增大， (1)设速度选择器两极间的电压为U（V）时，允许通过的电子的动能为E k（eV），导出E k（eV）与U（V）的函数关系（设通过选择器的电子的轨道半径r=20.0 cm，电极P1和P2之间隔d=1.00 cm,两极间场强大小处处相同），要说明为什么有些电子不能进入到接收器. (2)当电子枪射出的电子动能E k=50.0 eV时，改变电压U（V），测出电流I（A），得出下图所示的I—U图线，图线表明，当电压U为5.00 V、2.88 V、2.72 V、2.64 V时，电流出现峰值，定性分析论述I—U图线的物理意义. (3)根据上述实验结果求出氦原子三个激发态的能级E n（eV），设其基态E1=0. 试题5: 曾经流行过一种向自行车车头灯供电的小型交流发电机，图1为其结构示意图。图中N、S是一对固定的磁极，abcd为固定在转轴上的矩形线框，转轴过bc边中点、与ab边平行，它的一端有一半径r0＝1.0cm的摩擦小轮，小轮与自行车车轮的边缘相接触，如图2所示。当车轮转动时，因摩擦而带动小轮转动，从而使线框在磁极间转动。设线框由N＝800匝导线圈组成，每匝线圈的面积S＝20cm2，磁极间的磁场可视作匀强磁场，磁感强度B＝0.010T，自行车车轮的半径R1＝35cm，小齿轮的半径R2＝4.cm，大齿轮的半径R3＝10.0cm（见图 2）。现从静止开始使大齿轮加速转动，问大齿轮的角速度为多大才能使发电机输出电压的有效值U＝3.2V？（假定摩擦小轮与自行车轮之间无相对滑动） 江西省南昌市八一中学、麻丘高级中学等六校2020-2021学年高一数学上学期 期中联考试题 一、选择题(本大题共12小题,每小题5分,共60分) 1.若{}R x x y y P ∈==,2,(){} R x x y y x Q ∈==,,2，则必有( ) Q P A =. Q P B ?. Q P D ?. 2．已知映射()():,2,2f x y x y x y →+-，在映射f 下 的原象是（ ） A. B. ()1,1 C. D. 3.下列各组函数中，表示同一函数的是（ ） ()()x x x x g x x f A -= -=21.与 ()() ()x x g x x x f B ==与2 2 . ()()x a a x g x x f C log .==与 ()()n n x x g x x f D ==与. 4.把函数23y x =的图像关于x 轴对称向下翻转，再右移14个单位长度，下移1 3 个单位长度，得到函数图像的解析式为（ ） A.2113()43y x =--- B.2113()43y x =-- C.211 3()43y x =-+- D.2113()43 y x =+- 5.集合，集合 则（ ） A.[-2, 3) B. [-2, 3) C. D. [-1, 3) 6.已知5log 7.0=a ，5 7.0=b ，7 .05=c ，则的大小关系是 （ ） A ． B ． C ． D ． 7.集合{} R x x x x ∈=,2100的真子集的个数为 A.2 B. 4 C.6 D. 7 8．函数()1++=x e x f x 零点所在的区间是 ( ) A ．()1,0 B ．()0,1- C ．()1,2-- D ．()2,1 9.德国著名数学家狄利克雷在数学领域成就显著．19世纪，狄利克雷定义了一个 “奇怪的函数”,，其中R 为实数集，Q 为有理数集．则下列说法正确是（ ） A. B.函数是奇函数 C. ∈?21,x x C R Q,()()()2121x f x f x x f +=+恒成立 D. 函数 不能用解析法表示 10. 已知函数21(1)3,(1) (), (1)x a x ax a x f x a x -?-++≥=? 2018届高一新生入学考试 英 语 试 题 第I 卷 （共65分） I. 单项选择（共20小题，计20分） 本题共有20个小题，请从每个小题的四个选项中，选出一个答案。 1. Tom is ______ honest boy because he never tells lies. 5 all D. unless 8. The ______ fruit you eat, the ______ you are. A. many; healthy B. more; healthier C. much; healthier D. most; healthiest 9. Good words can touch not only your heart but also . A. I B. my C. myself D. mine 10. Loud music always makes us ______. A. want dance B. to want dance C. want to dance D. to want to dance 11. —Students need enough sleep. —You are right. So they shouldn’t ______ too late. A. set up B. cheer up C. give up D. stay up 12. —Must I finish my homework? —No, you n eedn’t. But you ______ finish it tomorrow. A. can B. must C. may D. will C. has C. is C. C. whose mountains. --- . A. How great a man B. How great men C. What a great man D. What great men 19. I didn’t accept his help I wanted to try it myself. A. because B. though C. until D. unless 20. Don’t be afraid of new words. You can ______ in the dictionary.高一新生分班考试英语试题及答案 (1)
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