英语试题
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。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 the man probably mean?
A. T he woman’s getting fat.
B. T he woman’s losing weight.
C. T he woman’s kind to share her chocolate.
2. Where is Mary going tomorrow?
A. To the movies.
B. To a museum.
C. To the hospital.
3. What will Joe do this Sunday?
A. Go hiking.
B. Buy some clothes.
C. Do some housework.
4. What does the woman think of the painting?
A. It’s just so-so.
B. It’s excellent.
C. It’s terrible.
5. How much did the man tip the woman?
A. $100.
B. $10.
C. $1.
第二节
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。
听下面一段对话，回答第6和第7两个小题。
6. What is the probable relationship between the speakers?
A. Good friends.
B. Co-workers.
C. A couple.
7. What is the man’s reason for being absent?
A. He was sick.
B. His wife was sick.
C. He was on vacation.
听下面一段对话，回答第8和第9两个小题。
8. Where is Tanya now?
A. At her desk.
B. In a meeting.
C. At the downtown office.
9. How does the woman suggest contacting Tanya?
A. By calling her cell phone.
B. By sending her an e-mail.
C. By visiting her office.
听下面一段对话，回答第10至第12三个小题。
10. When did the speakers last see each other?
A. One year ago.
B. Two years ago.
C. Three years ago.
11. What was the woman doing in Asia?
A. Traveling.
B. Studying Japanese.
C. Teaching biology.
12. What do we know about Kathy Morris?
A. She is a Japanese girl.
B. She is t he woman’s workmate.
C. She is the man’s wife.
听下面一段对话，回答第13至第16四个小题。
13. What was Uncle Marco’s former job?
A. A solider.
B. A doctor.
C. A government clerk.
14. What happened to Uncle Marco twenty years ago?
A. His grandmother died.
B. He was shot in the leg.
C. He got an award for helping others.
15. What does the woman think of Uncle Marco?
A. A little crazy.
B. Very kind.
C. Quite humorous.
16. How long had Uncle Marco been away this time?
A. For six weeks.
B. For six months.
C. For seven months. 听下面一段独白，回答第17至第20四个小题。
17. What evidence was there that a thief had entered the house?
A. A messy room.
B. A broken window.
C. A mark from a person’s shoe.
18. What is the second step to protecting your home?
A. Hiding your money carefully.
B. Having your neighbors look after your house.
C. Locking all the doors and windows.
19. Where should you never leave a house key?
A. In the neighbor’s house.
B. In a drawer.
C. In the mailbox.
20. What should you do if you hear strange sounds in your house?
A. Seek for the thief.
B. Call the police.
C. Hide under your bed.
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
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Please click here to learn more about the courses.
21.Which course would be helpful for basic communication skills?
A.High School ESL.
B. General English.
B.Night Classes. D. Academic English.
22.How much will you pay if you spend two weeks taking the Night Classes?
A.$360.
B. $300.
C. $600.
D.$240.
23.Where can we find the passage?
A.A newspaper.
B. A brochure.
C. A website.
D. An application.
At 3,500 metres, La Paz, Bolivia, is the highest capital in the world．Many roads are in bad condition and accidents are frequent．One road in particular, is considered the most dangerous in the world．On one side there is a sudden drop, which is so great that anyone inside the vehicle is Lucky to survive. In theory, the road can only be used by traffic going uphill from 8 in the morning, and by traffic coming downhill from 3 in the afternoon. But in practice, few drivers respect the rules.
But thanks to one man, the death toll has fallen．Timoteo Apaza is a man who lives in a village near the most dangerous part of the road, known as "the Devil's Bend"．Timoteo has an unusual job — he is a human traffic signal．Every morning he stands on the bend and directs the traffic．When two vehicles approach from opposite directions, they can't see each other, but they can see Timoteo．Actually no one pays him to do the job．Sometimes drivers give him a tip so that he has just enough money to live on．But often they just pass by, taking the human traffic signal for granted.
So why does he do it? Before Timoteo volunteered to direct the traffic, Timoteo had had lots of jobs. He had been a miner and a soldier. Then one day while he was working as a lorry driver he had a close encounter with death. He was driving a lorry load of bananas when he came off the road at a bend and fell three hundred metres down the mountain．Somehow he survived, but was in hospital for months．Then, a few years later, he was called out in the night to help pull people out of a bus crashed at the Devil's Bend．This last experience had a profound effect on Timoteo．He realized that he was lucky to be alive himself, and felt that it was his mission in life to help others．So every morning, week in, week out, from dawn to dusk, Timoteo takes up his place
on the bend and directs the traffic.
24．Which is NOT true according to the passage?
A．Many roads in La Paz are in bad condition.
B．There were many accidents in La Paz before.
C．In practice，many drivers do not respect the rules.
D．In theory，the road can be used by traffic all day long.
25．How can Timoteo make a living?
A．He was paid by the local government.
B．He has a lot of money.
C．Sometimes he can get tips from some drivers.
D．He was paid by all the drivers passing by.
26．Which jobs has Timoteo done according to the passage?
A．A miner；a soldier；a lorry driver.
B．A miner；a policeman；a lorry driver.
C．A policeman；a soldier；a miner.
D．A lorry driver；a policeman；a soldier.
27．He was in hospital for months because .
A．he was seriously ill
B．an accident happened to him
C．he was beaten by some drivers
D．he was injured in the mine
Scientists in Western Australia claim to have made a new discovery—they have found gold in the leaves and twigs of trees. The researchers believe that the trees suck up the gold from deep underground, over 30 metres down. The discovery has been described as the first of its kind in the world. Australian gold exploration companies are pleased because it will make finding gold cheaper. Rather than drilling deep holes to find gold, they have more ways to examine tree leaves and branches. There is only a tiny amount of gold in the leaves. It would take 500 trees to make one gold ring. The gold is found using a special X-ray machine owned by an Australian government agency. A pure X-ray and a powerful microscope scan the leaves and branches.
The claim that this is the first time that gold particles(微粒) have been found in living material might not be true, though. Ancient Chinese wisdom understood the connection between plants and the precious stones and minerals underneath them. They used plant life to find minerals and that was thousands of years ago. In the Zhou Dynasty, it was written in a book that a certain plant grew only near deposits of gold. Over the next 2,000 years, Chinese people wrote about different plants and how they grew, showed where minerals and precious stones such as jade, copper, lead, silver and gold were.
Even more importantly, in the 1,000s, Su Song described how copper, gold, silver, lead and tin were observed and taken from certain plants. These were amazing scientific discoveries. Meanwhile, this knowledge was unknown in the rest of the world until about 1,600. This was when a British man realised that oak trees grew larger and greener where there was alum(明矾) in the ground. Maybe ancient Chinese has more knowledge to teach modern scientists.
28. What can we know from Paragraph 1?
A. 500 dead trees can make one gold ring.
B. The trees can absorb the gold from deep underground.
C. Scientist have found gold 30 meters below underground.
D. The companies find it hard to find gold.
29. How do scientists find gold in the leaves?
A. By observing the leaves carefully.
B. By drilling deep holes.
C. By using a special X-ray.
D. By referring to ancient books.
30. Who first discovered that there was connection between plants and minerals?
A. Ancient Chinese people.
B. Su Song.
C. Australian scientists
D. A British man.
31. What is the purpose of the last paragraph?
A. To introduce two great scientists in ancient times.
B. To provide more evidence to support the writer’s op inion.
C. To show how ancient people got gold from certain plants.
D. To prove that ancient Chinese has more knowledge than modern scientists.
D
With schools close in the UK during the COVID-19 outbreak, most children must now be home schooled. Parents have found themselves not only having to balance work and having the children at home but also having to try and teach them. How can you keep your children focused while learning?
Nicola Anderson--Head of Customer Support at the UK’s leading online tutoring s ervice My Tutor, provides new, up-to-date tips to hearten parents at this difficult time and advises how they c an structure their children’s days.
One is to keep to a regular timetable so it still feels like your child is taking part in the school day. Ms Anderson said: “Children of all ages do well on routine and boundaries; schools provide this in abundance and it will most children feel secure and happy if they can follow a similar timetable for their homeschooling.”
Another tip is to create an environme nt which is favorable to learning. She said:” The environment should be free from distractions and ideally near to an open window, to provide them with appropriate levels of fresh air and natural light. Some children find it comfortable and helpful to have quiet, instrumental music playing in the background to help them to focus, but this isn’t for everyone.”
Using technology to help with your child’s learning is also advised. Many schools are offering online classes and resources to help and companies are reducing or even not charging their fees during this time.
It is also important to keep physical exercise as a part of your routine. Joe Wicks, otherwise known as The Body Coach, has been keeping kids healthy with daily 10 minute workouts for children on h is YouTube channel. Ms Anderson said:” It can be anything from running around the
garden, walking the dog, a ga me of football or dancing around your living room!”
32.Who is the text intended for?
A. Student.
B. Teachers.
C. Coaches.
D. Parents.
33.What doe s the underlined word “this" in paragraph 3 refer to?
A. Home schooling.
B. Tutoring service.
C.A regular timetable.
D. Difficult time:
34.What may Nicola Anderson agree?
A. To allow children to adjust schedule freely.
B. To offer children peaceful study environment.
C. To recommend high-tech to online schools.
D. To combine routine with kids' mental heath.
35.What is the text mainly about?
A. How to improve homeschooling efficiency.
B. How to obtain online learning resources.
C. How to study attentively at home.
D. How to design a proper schedule.
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。
If you are already making the time to exercise, it is good indeed! With such busy lives, it can be hard to try and find the time to work out. 36 Working out in the morning provides additional benefits beyond being physically fit.
●Your productivity is improved. Exercising makes you more awake and ready to
handle whatever is ahead of you for the day. 37
●Your metabolism(新陈代谢) gets a head start. 38 If you work out in the
mornings, then you will be getting the calorie(卡路里)burning benefits for the whole day, not in your sleep.
●39 Studies found that people who woke up early for exercise slept better than
those who exercised in the evening. Exercise energizes you, so it is more difficult to relax and have a peaceful sleep when you are very excited.
●40 If you work out bright and early in the morning, you will be more likely to
stick to healthy food choices throughout the day. Who would want to ruin their good workout by eating junk food? You will want to continue to focus on positive choices.
There are a lot of benefits to working out, especially in the mornings. Set your alarm clock an hour early and push yourself to work out! You will feel energized all day long.
A. You will stick to your diet.
B. Your quality of sleep improves.
C. You prefer healthy food to fast food.
D. There is no reason you should exercise in the morning.
E. You can keep your head clear for 4-10 hours after exercise.
F. After you exercise, you continue to burn calories throughout the day.
G. If you are planning to do exercise regul arly, or you’re doing it now, then listen up!
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 still remember the day I was driving to the supermarket I own. When I came out, I found a boy 41 my car with a brush. I went over and patted (拍) him 42 the shoulder, which surprised him very much. In no time he began to 43 at me, so I was sure he 44 some money. From the shoes he was wearing I could hardly imagine how 45 he was. So I offered him a $100 bill. To my great surprise, he 46 to take it. When I was wondering what he was doing, he said, “I was waiting here for 4 hours, waiting for you. Your47 is so beautiful and I like it, but I don’t need that.” I knew he was mentioning the48 .
As he had refused the money, I offered to drive him around the town. The boy became so 49 that he got into the car at once, “Would you please drive me50 ? It is only about 3 miles.” What the boy wanted to do was to show off to his friends and his family.
51 I stopped, he jumped out and ran into an old building, telling me to wait there for some time. Very soon he came out, saying to a little girl on his back, “Look at this beautiful car. I will buy you 52 some day.”
I noticed his sister had a pale (苍白的) face. 53 , her legs were too thin, and she was unable to 54 .
After that day I went to his home several times. And I got to know more about him and his 55 . Poor as they were, the boy 56 refused my money, and said, “I can57 money by myself, th ank you.”
Soon I 58 my manager of the supermarket that a boy would go to 59 here the next day.
No matter how poor we are, we would 60 give in (屈服) to ourselves.
41.A. repairing B. cleaning C. fixing D. hitting
42. A. over B. off C. in D. on
43.A. shout B. cry C. smile D. throw
44.A. lost B. got C. received D. needed
45.A. rich B. poor C. handsome D. brave
46.A. begged B. agreed C. allowed D. refused
47.A. car B. shoes C. suitcase D. clothes
48.A. box B. wheel C. paper D. bill
49.A. unhappy B. scared C. excited D. unfriendly
50.A. yard B. office C. school D. home
51.A. As soon as B. As long as C. As well as D. So far as
52.A. one B. it C. this D. that
53.A. So B. However C. What’s wo rse D. In general
54.A. run B. jump C. climb D. walk
55.A. brother B. family C. friend D. boss
56.A. no longer B. at last C. at first D. once again
57.A. spend B. save C. make D. borrow
58.A. told B. asked C. answered D. warned
59.A. shop B. work C. sleep D. buy
60.A. always B. often C. ever D. never
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。
C. V. Raman, a great Indian physicist, was born in 1888. His father was a lecturer in math and physics, so C. V. Raman was exposed 61 scientific things from an early age. He 62 (attend) Presidency College in 1902, getting his BA in 1904 and MA in 1907. Though he was a brilliant student，there weren’t many 63 ( chance ) for scientists in India at that time.
64 ，after finishing his studies, he went to work for the Indian Finance Department and carried out his experimental research on acoustics (声学）.
He 65 (offer) a professorship in physics at the University of Calcutta in 1917 and stayed for the next 15 years, 66 (achieve) fame for his research there. In 1930, he won the Nobel Prize for his work on the scattering of light. Raman found 67 light passes through a transparent (透明的）sample of a substance, most of the light remains unchanged but a small part of it has 68 ( differ) wavelengths. This later is 69 ( know) as the Raman effect and is useful for physical and chemical 70 (analyse) of gases, liquids and solids, including biological tissue.
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。
It isn’t hard to be the responsible member of the society.
I remember an accident that happens on a rainy Sunday. I was waiting for the green light at a crossing while a girl of about 10 was hit by a passed car, which drove off quickly. A man immediate rushed to give the girl first aid and I joined in without hesitations. Fortunately, he was not badly injured, and we sent her away to the nearest hospital. I am proud my actions, and disappointed with the driver.
As a member of the society, I am aware that being responsible is how it takes to make the society better.
第二节书面表达（满分25分）：
请根据下表的内容提示，以Mount Wutai为题介绍一下五台山。词数100左右。
1．五台山位于山西省东北部，是世界五大佛教圣地之一；
2．五台山主要包括五座山峰，峰顶平坦如台，故称五台；
3．寺庙曾经多达300多座，现有58座；
4．五台山不仅以其优美的自然风光闻名，还以古建筑、历史文物等著称。
参考词汇：佛教圣地Buddhist Holly Lands；历史文物historical relics
Mount Wutai
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答案
第一部分听力
1. A
2. C
3. C
4. B
5. A
6. B
7. A
8. C
9. A 10. C
11. B 12. C 13.A 14. B 15. A
16.B 17. C 18. B 19. C 20. B
第二部分阅读理解
21. B 22. A 23.C 24. d 25. c
26. A 27.B 28. B 29. C 30. A
31. B 32. D 33. C 34. B 35. A
36. G 37.E 38. F 39. B 40.A
第三部分语言知识运用
41. B 42.D 43. C 44. D 45.B
46.D 47. A 48.D 49.C 50. D
51.A 52.A 53.C 54.D 55. B
56. D 57. C 58. A 59. B 60. D
第二节语法填空
61.to 62. attended 63.chances 64. Therefore 65. was offered 66. achieving67. when 68. different 69. known 70. analysis/analyses 第四部分写作
第一节
a
happened
passing
when
what
make the society better.
第二节
【参考范文】
Located in the northeast of Shanxi Province, Mount Wutai is one of the world's five famous Buddhist Holly Lands.
Mount Wutai mainly consists of five peaks and their tops are as flat as a pancake, so they are named “Mount Wutai”. The peaks are heavy with snow all the year round and the slops are surrounded with trees, making it a famous summer resort. There are fiftyeight temples now. There used to be at least three hundred temples there. Mount Wutai is not only famous for its fantastic natural landscape, but also for its ancient buildings, historical relics and rich Buddhism culture.
It's really a great tourist attraction to vi sit.
听力录音原文：
Text 1
M: I think you eat too much chocolate. Have you looked in the mirror?
W: Do you think I’m getting fat?
M: Well, I didn’t want to say it, but…
Text 2
M: Shall we go to the movie theater tomorrow, Mary?
W: I’d love to, but my mother is in hos pital. I have to take care of her.
Text 3
W: What are you going to do this Sunday, Joe?
M: Oh, I have to wash all my clothes, mop the floor, and get everything clean.
Text 4
W: I really like this painting. Who made it?
M: My daughter. She has been taking painting classes.
W: Really? This looks like a professional painting.
Text 5
W: Sir, I think you made a mistake on the bill. You left a 100-dollar tip. Did you mean $10?
M: No, I didn’t. You worked hard. Enjoy it!
Text 6
W: ⑥⑦Why did you miss work last week? We had to finish the project without you.
M: I’m sorry about that, Amy. ⑦I was very sick.
W: Oh, yeah? What did you have?
M: Um, I had the… donkey pox. It’s a new sickness. Not many people have heard of it yet.
W: Hmm… I think you were just on vacation.
Text 7
M: ⑧Do you know where Tanya is? I’ve been phoning her and sending e-mails for the past hour. She’s not at her desk.
W: ⑧She had to go to the downtown office to clear up a problem.
M: Well, I have some good news. We have a new advertising client, ⑨and I want Tanya to be in charge of their account.
W: ⑨That’s great news! You should call her on her cell phone. I’m sure she’d rather hear the news from you than read it in an e-mail.
Text 8
W: Greg? Greg Anderson?
M: Juanita Torres! ⑩It’s been three ye ars since we last met. What are you doing now?
W: Well, ?I just came back from Asia.
M: ?What were you doing there?
W: ?I was working in Tokyo and studying Japanese.
M: Wow! Can you speak Japanese now?
W: Yes, I can… What’s new with you?
M: ?Do you remember Kathy Morris?
W: Of course! She sat next to me in biology class.
M: ?Well, we got married. We’ve been married for two years now.
Text 9
W: Tell me that story again, dear.
M: Which one?
W: ?The funny one about the guy who says he was in the army.
M: ?Oh, you mean Uncle Marco! He comes around the office from time to time, but he doesn’t work there. I think he lives in the neighborhood.
W: Oh, I see.
M: ?He says the government never paid him enough for what he did in the war—?which was mainly to get shot in the leg at the beginning of it… from one of our own soldiers!
W: What happened?
M: The two of them were having an argument, and the other man shot him. ?He says it still hurts twenty years later.
W: ?He sounds a little crazy.
M: Yeah, that’s Uncle Marco… He’s a crazy old man. I saw him again last week. ?This time, he’d been away for six months. I asked him where he’d been. He said he went to his hometown in Texas because his grandmother had died.
W: Poor man!
M: Well, he tells me every year that his grandm a just died…
Text 10
M: Hi, I’m Bob. Welcome to my show “My Home, Your Home”.
Imagine that it’s Monday afternoon, and you decide to buy a few things for dinner. When you get back, you notice everything is just the same as you left it. Then as you are looking through your dresser drawer, you notice that everything is out-of-order. You realize the money you had hidden carefully at the bottom is gone. ?And the only evidence of a thief is a dirty footprint through an unlocked window.
Sound hard to believe? N ot to our family… because it happened to us.
There are several basic steps you can take to avoid being robbed. First of all, make sure that all of your doors and windows have secure locks. ?Never leave a copy of the key outside above a door, or in the mailbox. ?Second, keep neighbors informed when you might be away, and have them collect your mail and newspapers if needed. ?Finally, if you hear strange sounds in the house, call the police rather than seeking for the thief. Doing these basic things will go a long way(对……大有帮助) to secure your home, money, and peace of mind.
陕西省渭南市临渭区尚德中学2020-2021学年高三上学期第一次月考数学(理)试题 学校_________ 班级__________ 姓名__________ 学号__________ 一、单选题 1. 设集合，集合，则（） A．B．C．D． 2. 设，则（） A．B．C．D． 3. 已知向量，，若，则实数等于（）A．B．C．或D．0 4. 下列函数中,既是偶函数,又在区间(0,+∞)上单调递减的函数是( ) A．y=x2 C．y=2|x|D．y=cosx B． 5. 设为所在平面内一点，若，则下列关系中正确的是 （） A．B． C．D． 6. 七巧板是我国古代劳动人民的发明之一，被誉为“东方模板”，它是由五块等腰直角三角形、一块正方形和一块平行四边形共七块板组成的.如图所示的是一个用七巧板拼成的正方形，若在此正方形中任取一点，则此点取自黑色部分
的概率为（） A．B．C．D． 7. 执行如下图所示的程序框图，则输出的结果是（） A．B．C．D． 8. 在△ABC中，a，b，c分别为内角A，B，C所对的边，若，则b+c最大值为（） A．B．2 C．D．4 9. 已知直线平面，直线平面，若，则下列结论正确的是（） A．∥或B． C．D． 10. 已知曲线，，则下面结论正确的是 （）
A．把上各点的横坐标缩短到原来的倍，纵坐标不变，再把得到的曲线向 右平移个单位长度，得到曲线 B．把上各点的横坐标伸长到原来的2倍，纵坐标不变，再把得到的曲线向右平移个单位长度，得到曲线 C．把上各点的横坐标缩短到原来的倍，纵坐标不变，再把得到的曲线向 左平移个单位长度，得到曲线 D．把上各点的横坐标伸长到原来的2倍，纵坐标不变，再把得到的曲线向左平移个单位长度，得到曲线 11. 函数的图象可能是（） B． A． C．D． 12. 设为上的奇函数，满足，且当时， ，则( ) A．B． C．D． 二、填空题
西安市第一中学 2012-2013学年度第一学期期末 高二年级物理（选修3-1,3-2）试题 一、选择题：（本大题共15小题，每小题3分，共45分。每小题给出的4个选项中至少有一项是正确的，选不全的得2分，有错选或不答的得0分） 1、关于电场线和磁感线，以下说法中正确的是（ ） A ．电场线和磁感线都是实际存在的直线或曲线 B ．静电场线是不闭合的，而磁感线是闭合的 C ．电场线总是从正电荷出发到负电荷终止，磁感线总是从磁体的N 极出发到S 极终止 D ．电场线上某点的切线方向与正电荷在该点的受力方向相同，磁感线上某点的切线方向与放在该点的小磁针静止时N 极的受力方向垂直。 2、如图所示的电路中，当变阻器R 的滑片P 向下滑动时，电压表V 和电流表A 的示数变化的情况是（ ） A ．V 和A 的示数都变小 B ．V 和A 的示数都变大 C ．V 的示数变大，A 的示数变小 D ．V 的示数变小，A 的示数变大 3、如图所示，在一个平面内有六根绝缘的通电导线，电流大小相同，1、2、3、4为面积相等的正方形区域，其中指向纸面内的磁场最强的区域是（ ） A ．1区 B ．2区 C ．3区 D ．4区 4、老师做了一个物理小实验让学生观察：一轻质横杆两侧各固定一金 属环，横杆能绕中心点自由转动，老师拿一条形磁铁插向其中一个小环，后又取出插向另一个小环，同学们看到的现象是（ ） A.磁铁插向左环，横杆发生转动 B.磁铁插向右环，横杆发生转动 C.无论磁铁插向左环还是右环，横杆都不发生转动 D. 无论磁铁插向左环还是右环，横杆都发生转动 5、矩形线圈在匀强磁场中匀速转动,当线圈通过中性面时.下列说法中正确的是( ). A ．穿过线圈的磁通量最大,线圈中的感应电动势等于零 1 4 2 3 E r
西工大附中,,,交大附中,铁一中,,师大附中,西安中学,西安高级中学,高薪一中,长安一中,西安市83中学,这是前九位,,以后的就比较差了!! 先说重点中学排名吧。按照实力来排应该是：西工大附中、高新一中、铁一中、交大附中、师大附中、西安中学。后面的都差不了多少。长安一中因为在中考招生时是和城六区的学校分开招的，所以不太好比较， 但其实力大概和师大附中差不多。 长安一中农家子弟居多，学风很刻苦，你得考虑自己受不受得了。但是长安一中的优质师资很多都去了市里，在其他方面也受了一些打击，所以实力比以前有些下降。总体来说市里的重点中学要强，其中西工大、高新、铁一和交大四个学校比长安一中强的不是一点而是很多。自己权衡吧，要是能咬牙努力三年，能受得了那份苦，在长安一中也不会差到哪里去。不过要是能去市里，确实在学习上可以不那么刻苦但是取得 同样的成绩。 新城区灞桥区 1、西安市第八十九中学（省市两级） 1、西安市第三十四中学（省市两级） 2、陕西省西安中学（省市两级） 2、五环中学（省市两级） 3、西安铁三中（省市两级） 3、西安市第六十四中学（市级） 4、黄河中学（省市两级） 4、唐华四棉纺织厂子弟中学（市级） 5、西安市第八十三中学（省市两级） 5、西安庆华电器厂子弟中学（省市两级） 6、西光中学（省市两级）未央区 7、西安市第三十中学（市级） 1、西安市第七十五中学（市级） 8、西安市第三十八中学（市级） 2、西安航空发动机公司一中（市级） 9、西安东方机械厂子弟中学（省市两级）3、陕西第十棉纺厂子弟中学（市级） 10、西安华山机械厂子弟中学（市级） 4、陕西重型机器厂子弟学校（市级） 碑林区 5、车辆厂子中（市级） 1、西安市第二十六中学（省市两级）雁塔区 2、西工大附中（省市两级） 1、西安市第八十五中学（省市两级） 3、西安交通大学附中（省市两级） 2、西安市育才中学（省市两级） 4、西安铁一中（省市两级） 3、西安高新第一中学（省市两级）
陕西省渭南临渭区农村经济基本情况3年数据解读报告2020 版
序言 本报告以数据为基点对渭南临渭区农村经济基本情况的现状及发展脉络进 行了全面立体的阐述和剖析，相信对商家、机构及个人具有重要参考借鉴价值。 渭南临渭区农村经济基本情况数据解读报告知识产权为发布方即我公司天 津旷维所有，其他方引用我方报告均需注明出处。 渭南临渭区农村经济基本情况数据解读报告主要收集国家政府部门如中国 国家统计局及其它权威机构数据，并经过专业统计分析处理及清洗。数据严谨公正，通过整理及清洗，进行渭南临渭区农村经济基本情况的分析研究，整个报告覆盖农林牧渔业总产值，农林牧渔业增加值，年末常用耕地面积，农用机械总动力，农用化肥施用折纯量，农用塑料薄膜使用量，粮食播种面积等重要维度。
目录 第一节渭南临渭区农村经济基本情况现状 (1) 第二节渭南临渭区农林牧渔业总产值指标分析 (3) 一、渭南临渭区农林牧渔业总产值现状统计 (3) 二、全省农林牧渔业总产值现状统计 (3) 三、渭南临渭区农林牧渔业总产值占全省农林牧渔业总产值比重统计 (3) 四、渭南临渭区农林牧渔业总产值（2017-2019）统计分析 (4) 五、渭南临渭区农林牧渔业总产值（2018-2019）变动分析 (4) 六、全省农林牧渔业总产值（2017-2019）统计分析 (5) 七、全省农林牧渔业总产值（2018-2019）变动分析 (5) 八、渭南临渭区农林牧渔业总产值同全省农林牧渔业总产值（2018-2019）变动对比分析6 第三节渭南临渭区农林牧渔业增加值指标分析 (7) 一、渭南临渭区农林牧渔业增加值现状统计 (7) 二、全省农林牧渔业增加值现状统计分析 (7) 三、渭南临渭区农林牧渔业增加值占全省农林牧渔业增加值比重统计分析 (7) 四、渭南临渭区农林牧渔业增加值（2017-2019）统计分析 (8) 五、渭南临渭区农林牧渔业增加值（2018-2019）变动分析 (8) 六、全省农林牧渔业增加值（2017-2019）统计分析 (9)
陕西省渭南市临渭区尚德中学2019-2020学年高二化学上学期期中试题 本试卷分为选择题和填空题，满分100分，时间90分钟 可能用到的相对原子质量：氢：1 氧：16 银：108 铜：64 一、单项选择题（共18小题，每小题3分，计54分） 1．下列反应属于吸热反应的是（） A B C D 2．改变下列哪个条件，一定会引起平衡的移动（） A.温度 B.浓度 C.压强 D.催化剂 3．下列有关金属腐蚀与防护的说法正确的是（） A.纯银器表面在空气中因电化学腐蚀而渐渐变暗 B.当镀锌铁制品的镀层受损后，镀层仍能对铁制品起保护作用 C.钢柱在水下部分比在空气与水交界处更容易腐蚀 D.可将地下输油钢管与外加直流电源的正极相连以保护它不受腐蚀 4．已知在101 kPa、25℃条件下，2 mol氢气完全燃烧生成水蒸气放出484kJ的热量，下列热化学方程式正确的是（） A.HO(g)＝H(g)+1/2O(l) △H＝+242 kJ∕mol 222 B.2H(g)+O(g)＝2HO(l) △H＝-484 kJ∕mol 222 C.H(g)+1/2O(g)＝HO(g) △H＝-242 kJ∕mol 222 D.2H(g)+ O(g)＝2HO(g) △H＝+484 kJ∕mol 2225．在2A＋B 3C＋4D反应中，表示该反应速率最快的是（） A．υ＝0.5 mol/（L·ｓ） B．υ＝0.3 mol/（L·ｓ））（A（）B C．υ＝0.8 mol/（L·ｓ） D．υ＝1 mol/（L·ｓ））（D（C）6．银锌电池广泛用作各种电子仪器的电源，它的放电过程可以表示为AgO+ Zn+HO = 2Ag+Zn(OH),电池放电时，负极发生反应的物质是( ) 222 .Zn D O C.Ag A.Ag B. Zn(OH)221 7．25℃，下列溶液的酸性最强的是（） HSO0.01mol?LHCl B．pH=2A．42-1 -1溶液的 ．pH=1溶液加水稀释1倍 L C．c（OH）=10mol?8．在盐类水解的过程中，下列说法正确的是-13-D ( )
市一中大学区 2016-2017学年度第一学期期中考试 高三生物试题 一．选择题（共60分） 1、生物体内某些重要化合物的元素组成和功能关系如图所示。其中X、Y代表元素，a、b、c 是组成A、B、C三种生物大分子的单体，这三种单体的结构可用d或e表示。据图分析，下列叙述正确的是( ) A．人体细胞中单体a、b的结构可用d表示，人体中d的种类有4种 B．大肠杆菌细胞内单体c的结构可用e表示，e的种类约有20种 C．a、b是生物体内遗传信息的携带者，C是生命活动的主要承担者 D．A、B的多样性由d中的m充分体现，C的多样性由e中的R充分体现 2．颜色变化常作为生物实验结果观察的一项重要指标，下面是一些学生在实验中遇到的问题，其中的错误 ．．操作或想法有几项 ①用滴管在花生子叶薄片上滴加苏丹III染液，发现满视野都呈现橘黄色，于是滴1-2 滴50%盐酸洗去浮色 和无水乙醇，研磨液呈黄绿色。于是判断是菠菜叶用量 ②取新鲜的菠菜叶，加少许SiO 2 太少导致 ③在纸层析法分离叶绿体中色素的结果中,蓝绿色带最宽,可判断叶绿素a含量最多 ④乳酸菌、酵母菌和蓝藻的细胞内都有核糖体和染色体 A．一项 B．二项 C．三项 D．四项 3、如图所示为物质出入细胞的方式(其中a表示生物膜上的糖蛋白，①～③表示物质运输的三种方式)，下列有关叙述不合理的是( ) A．①方式可表示肌细胞从组织液中吸收氧气 B．①②③运输方式均能体现细胞膜的选择透过性 C．此图若表示神经元的细胞膜，则静息电位恢复过程中涉及③方式 D．糖醋蒜腌制过程中，蔗糖和醋进入细胞的过程与 ②和③有关 4、下列关于酶的叙述，错误的是( ) A．溶酶体本身不能合成和分泌多种酸性水解酶 B．激素都是通过影响细胞内酶的活性来调节细胞代 谢的 C．同一个体内的各类活细胞所含酶的种类有差异，数量也不同
2018-2019学年上海市浦东新区尚德中学校九年级上学期11月 阶段测试试卷 Part 2 Phonetics, Grammar and Vocabulary （第二部分语音、语法和词汇） Ⅱ. Choose the best answer（选择最恰当的答案）（共20分） Which of the following underlined parts is different in pronunciation？ A)breathe B)lead C)ahead D)heat 【答案】C I'm looking forward to one-month trip in Africa soon. A)a B)an C)the D)/ 【答案】B I really miss my son, and I hope he will be back a week. A)by B)in C)for D)before 【答案】B Electronic products are becoming more and more popular in China many reasons. A)at B)for C)of D)with 【答案】B The music from the next door sounded .It almost drove me mad. A)beautiful B)sweet C) awful D) healthy 【答案】C knowledge experience are important to finish that task A)Either....or B)Neither....nor C) Not only.....but also D)Both.....and 【答案】D Did the policeman give much on how to protect personal information? A)note
西安市第一中学 2020┄2021学年度第二学期期中 高二年级化学（选修5）试题 可能用到的相对原子质量：H-1 C-12 O-16 一、选择题（每小题只有一个．．选项符合题意．．．． 。每小题2分，共50分） 1．用于制造隐形飞机的物质具有吸收微波的功能，其主要成分的结构如图，关于该分子的说法正确的有 A ．分子中含有碳碳双键，属于烯烃 B ．从碳骨架形状分析，应该属于环状烃 C ．该分子属于高分子化合物 D ．该分子中即有极性键，也有非极性键 2、 2021年北京奥运会的“祥云”火炬所用燃料的主要成分是丙烷，下列有关丙烷的叙述中不正确的是 A ．分子中碳原子不在一条直线上 B ．光照下能够发生取代反应 C ．比丁烷更易液化 D ．是石油分馏的一种产品 3、制取较纯的一氯乙烷，用下列哪种方法最好 A ．乙烷和氯气取代 B ．乙烯与氢气加成，再用氯气取代 C ．乙烯和氯化氢加成 D ．乙炔和氯化氢加成 4、在光照下，将等物质的量的CH 4和Cl 2充分反应，得到产物的物质的量最多的是 A ．HCl B ．CH 3Cl C ．CHCl 3 D ．CCl 4 5、下列各分子式只表示一种纯净物的是 A ．C 2H 2Br 2 B ． C 3H 8 C ．C 4H 10 D ．C 5H 10 6、①丁烷，②2-甲基丙烷，③戊烷，④2-甲基丁烷，⑤2,2-二甲基丙烷等物质按沸点的顺序排列正确的是
A．①＞②＞③＞④＞⑤ B．⑤＞④＞③＞②＞① C．③＞④＞⑤＞①＞② D．②＞①＞⑤＞④＞③ 7、下列关于煤、石油、天然气等资源的说法正确的是 A．石油裂解得到的汽油是纯净物 B．石油产品都可用于聚合反应 C．天然气是一种清洁的化石燃料 D．水煤气是通过煤的液化得到的气体燃料 8、目前冰箱中使用的致冷剂是氟里昂（CF2Cl2），下面关于该氟里昂的说法正确的是 A 没有固定的熔沸点 B 分子中的碳原子是饱和的碳原子 C 属于正四面体的空间结构 D 可能有两种结构 9、下列物质的类别与所含官能团都正确的是 A．酚类–OH B．CH3CHCH3 COOH羧酸–CHO C．醛类–CHO D． CH3-O-CH3醚类C O C 10、可以用来鉴别甲烷和乙烯, 又可以用来除去甲烷中混有的少量乙烯的操作方法是 A．混合气通过盛酸性高锰酸钾溶液的洗气瓶 B．混合气通过盛水的洗气瓶 C．混合气通过盛足量溴水的洗气瓶 D．混合气跟氯化氢混合 11、下列物质中一定属于同系物的是 A．C4H10和C5H12 B．C2H6和C3H6 C．C2H2和C4H6 D．C3H6和C4H8 12、2000年诺贝尔化学奖授予两位美国化学家和一位日本化学家，以表彰他们在导电塑料领域的贡献，他们首先把聚乙炔树脂制成导电塑料。下列关于聚乙炔的叙述错误的是 Ａ．聚乙炔是以乙炔为单体发生加聚反应形成的高聚物 Ｂ．聚乙炔的化学式为分子中所有碳原子不可能在同一直线上
尚德中学2018学年初三英语模拟试卷一（B） Part 2 Phonetics, Grammar and Vocabulary (第二部分语音、语法和词汇) Ⅱ. Choose the best answer（选择最恰当的答案）（共20分） 21、He lives three blocks away from here. Which is correct for the undefined part? A) /?/ B) /?:/ C）/?/D) / ??/ 【答案】A 27. It is sunny and warm today. Let s go out for ______ picnic, shall we? A) a B) an C) the D)/ 【答案】A 28. The old lady said she would like to live in the country ______ her granddaughter. A) at B) in C) for D) with 【答案】D 29 As Mrs. Lee is ill, do you know who will teach _____ English? A)we B) us C) our D) ours 【答案】B 30. Mike is an overweight kid. He usually eats a lot of ______ for lunch and dinner. A) potato B) meat C) egg D) apple 【答案】B 31. Washing hands more often can prevent people ______ catching diseases. A) with B) on C) from D) for 【答案】A 32. of the twins is going to make a further study in the United states. A) Both B) Neither C) All D) None 【答案】B 33. The food is delicious at this hotel, but the service seems ______. A) good B) well C) terrible D) terribly
陕西省西安市第一中学 2013-2014学年度第一学期期中 高一年级政治试题（人教版必修1） 一、单项选择题：本大题共30小题，每小题2分，共计60分 1、货币的本质是 A.商品交换发展到一定阶段的产物 B.商品 C. 一般等价物 D.商品交换的媒介 2、2013年国庆节期间，小明的母亲按包月方式订制了天气预报短信，了解气象信息，查询天气情况，以方便出行。这里的“气象信息” A、是商品，因为它有使用价值 B、不是商品，因为它有价值，没有使用价值 C、是商品，因为它是使用价值和价值的统一体 D、不是商品，因为它不用于交换 3、货币的基本职能是： ①价值尺度②流通手段③贮藏手段④支付手段 A.①② B.①③ C.②④ D.③④ 4、俗话说：“一手交钱，一手交货”。这里的钱是 ①执行流通手段的职能②现实中的货币③观念中的货币④执行价值尺度职能 A、①④ B、①② C、③④ D、②④ 5、假定市场上待售商品1000亿元，且待售商品的价值都得到实现，若发行纸币500亿元，纸币在一定时期内平均流通四次，此时，l元纸币相当于： A. 0.5元货币购买力 B. 1元货币购买力 C. 2元货币购买力 D. 4元货币购买力 6、福建的张先生一家计划今年“十一”黄金周到拉萨去旅游。最适合张先生携带的信用工具是： A. 现金 B. 现金支票 C. 转帐支票 D. 信用卡 7、中国工商银行发行的牡丹国际借记卡(双币种)。是可在境内外通用，以人民币和美元两种货币结算，具有消费、转帐结算、存取现金等功能的借记卡。由此我们可以看出银行信用卡的优越性是 ①功能多样②方便购物消费③能超前消费④能充当世界货币 A．①② B．①③ C．②④ D．③④ 8、下列对外汇的认识，正确的是 A．外汇就是外国的货币 B.外汇是国际间结算的支付手段 C.外汇是用外币表示的用于国际间结算的支付手段 D.外汇是外币对人民币的兑换比率 9、假定生产一件甲商品的社会必要劳动时间为2小时，价值为40元。如果生产者A生产该商品的个别劳动时间为1小时，那么，A在4小时内生产的商品价值总量和单位商品的价值量分别是： A． 80 40 B． 40 20 C． 80 20 D． 160 40 10、价值、价格、供求关系三者的关系是： ①价值决定价格，价格波动影响供求关系 ②价格以价值为基础，供求关系和价格相互影响
陕西省渭南市临渭区尚德中学2019-2020学年高一下学期线上教学 检测语文试题(word无答案) 一、现代文阅读 (★★) 1 . 阅读下面的文字，完成各题。 古体诗，亦名古诗、古风或往体诗，指的是产生于唐以前并和唐代新出现的近体诗(又今体诗) 相对的一种诗体。它的特点是格律限制不太严格，篇幅可长可短，押韵比较自由灵活，不必拘 守对偶、声律，有四言、五言、七言、杂言等多种形式。不过唐人的古体以五言、七言为主， 杂言也多以七言为主体。 五七言古诗自汉魏以来已经有了悠久的传统，至唐代又发生了新变。唐代社会生活领域的扩展 和人的思想感情的复杂化，要求诗歌作品在表现范围上有较大的开拓，加上篇幅短小、格律严 整的近体诗走向定型化，更促使这种少受时空限制的古诗朝着发挥自己特长的道路迈进。一般 说来，较之魏晋六朝诗歌大多局限于比较单纯的抒情写景，唐人的古诗则趋向笔力驰骋、气象 峥嵘、边幅开阔、语言明畅，不仅抒写波澜起伏的情感心理活动，还直接叙述事件，刻画人物，铺排场景，生发议论，使诗歌表情达意的功能得到空前的发挥。唐代诗人中也有接近于汉魏古 诗含蓄淳厚作风的，如王、孟、韦、柳，但较为少见。不构成唐人古诗的主流。另外，在音节上，唐代古诗受今体诗的影响，或则吸取声律的和谐与对仗的工整，或则有意走上反律化的途径，皆不同于晋、宋以前诗歌韵调的纯任自然。所以明代格调论者以唐人古诗为汉魏以来古诗 的“变体”，并不算错。只是他们从伸正黜变、荣古虐今的传统观念出发，贬抑唐人古诗的成就，甚至宣言“唐无五言古诗”(李攀龙《唐选诗序》)，那就太过分了。清王士禛《古诗选》在五言古 诗部分选了一百多位汉魏六朝作家的作品，于唐人只取陈子昂、张九龄、李白、韦应物、柳宗 元五家，还说是“四唐古诗之望，可以略睹焉”(《古诗选·五言诗凡例》)，显示出同一偏见。倒是明末许学夷在《诗源辨体》中强调指出“唐人五古自有唐体”，它以铺陈充畅为特色，不能拿汉 魏古诗委婉含蓄的作风来硬加绳尺，可谓通达之见。 至于同属唐人古体，五言和七言又有所差别，这个问题比较微妙，须细心体察。我们看五七言 的区分，虽只在每句相差两个字上，但造成的节奏感和韵调感却很不一样。五言字少，念起来 有一种安详舒缓的气度，近乎平时的语调；七言音促，上口时会给人以发扬蹈厉的感觉，类似 于朗诵或歌唱表演的声腔。试读“杜陵有布衣，老大意转拙。许身一何愚，窃比稷与契”(杜甫 《自京赴奉先县咏怀五百字》)，或者像“暮投石壕村，有吏夜捉人。老翁逾墙走，老妇出门 看”(杜甫《石壕吏》)这样的句子，无论叙事还是抒情，口气何等自然平实，不带任何拖腔。但 如“少陵野老吞声哭，春日潜行曲江曲。江头宫殿锁千门，细柳新蒲为谁绿”(杜甫《哀江头》)， 以至于“中兴诸将收山东，捷书夜报清昼同。河广传闻一苇过，胡危命在破竹中”(杜甫《洗兵马》)则不管是悲慨还是喜颂，是仄脚还是平收，念起来都有一种异乎寻常说话的调门。抑扬顿挫，铿锵成韵。我国古代传统上有读诗和歌诗的区分，西洋歌剧音乐亦有宣叙调与咏叹调的歧异，五言和七言在调式上的分别大抵如此。这就是为什么五七言古诗尽管都起源于民歌，而五 言诗在东汉叶以后即日渐脱离音乐，取得独立的发展，七言诗却长时期停留在乐府歌行体的范 围内，直到唐代还常以七言短章合乐歌唱的缘故。 (节选自陈伯海《唐诗学引论》，有删改) 【小题1】下列关于“汉魏古诗”和“唐人古诗”的理解与分析，正确的一项是( )
市一中2015-2016学年度第二学期期末考试 高一年级语文试题 一、现代文阅读（共6分，每小题2分） 阅读下面的文字，完成1—3题。 根植“正能量” “正能量”本是天文学的专有名词，其网络意思泛指一切给予人向上、给予人希望和追求，使人行动的动力和感情。 最近，媒体对职业教育的报道总是充满了“负面消息”，如职校生频繁跳槽、用人单位反映毕业生综合素质不高、学校充当“廉价劳动力”的贩卖者、顶岗实习乱象丛生、生源危机让部分职业院校濒临倒闭等。似乎，社会舆论环境并没有给职业院校正常发展、职校生进步根植“正能量”，相反，这些新闻报道正在影响着人们对职业教育的认知和判断，形成一种“刻板印象”，而职校生也被社会另眼相看。 当然，我们或许可以理解为这是社会和公众对职业教育正常、合理的判断。但总体来说，职业院校成长的环境氛围不容乐观，职业教育的良性发展本身需要更加充足的“正能量”。 民进中央副主席、中国教育学会副会长朱永新教授说：整个职业教育的问题究竟出在什么地方？劳动用人部门对职业教育最不满意的是人文教育，认为我们的学生不会做人。现在职业教育的学生大部分是升学竞争的失败者，他们的信心、行为习惯、人生观、价值观等需要特别关注，这些比技能更重要。 暑假过后，经历了中、高考，又将有一批初、高中生走进中职和高职的大门。相对于应试教育中的“成功者”来说，他们是中、高考的“失败者”，也许，带着失落与挫败感，他们走进了职校的大门。如果学校不对这些学生进行心理疏导，学生们的内心不能充满着“正能量”，这势必影响到职校生未来的发展。 职业教育的产出是具有高技能、高素质的人才，好的人才是职业教育发挥积极作用的最好说明。在职业教育整体“正能量”匮乏的大背景下，给职校生根植“正能量”，实属不易，甚至还有些聊以自慰的感觉，职业教育的从业者不得不在如此困难中迎头而上。 所谓的“正能量”，它指的是自信、乐观、务实、踏实、自立、自尊、自强等积极因素。笔者以为，关乎人生观、价值观等“正能量”的根植是一个综合性、系统性的工程，一方面，需要依托舆论环境的包容与进步，媒体对于职业教育正面形象的塑造，通过舆论的氛围加以引导以及评价体系的转变等；另一方面，要靠学校自身的建设与发展，让职校生重拾这些积极的心态。学校自然义不容辞，担负起主要责任，但是，在为职校生根植“正能量”的过程中，我们也需要避免一些片面理解。 首先，避免简单地以为开设几门课程就能改变或塑造学生的价值观、人生观。很多学者认为，与职业技能的传授相比，学校亟须加强人文课程的建设。一个问题是，职业院校的课程本就不少，人文课程的实施能否真正提高学生的人文素养，我们无法保证，但是，依照笔者对教学的理解，这类课程的开设很多甚至大多以知识灌输为主，最终通过考试来衡量，很多知识也不过是考过即忘，与提高人文素养有多大相关，难以衡量。 学校对学生的培养应该是多方面的，这种培养模式从学生入校开始就应该渗透在学校事务的方方面面，它包括校园文化的浸染、社团活动的辐射、各类人文讲座的熏陶、各种技能竞赛的历练、毕业生的声名远扬等，缺一不可。职校生内心的“正能量”也正是在这样的大环境、大氛围中逐渐地重塑。 其次，落实到教育活动最实际的实施者身上，作为教师应注意方法的适当性，避免理想化、空泛化的教育。教师们为了提高学生学习的自信心，往往会采用赏识教育、成功教育，
2017—2018学年度高三第二次月考 数 学试 题（文) 命题人：课程研发中心 审题人：高三数学组 第Ⅰ卷（选择题 共60分） 一、选择题：本题共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. 设集合{1,2,3}A =,集合{2,2}B =-,则A B = （ ） A ．? B ．{2} C ．{2,2}- D ． {2,1,2,3}- 2. 复平面内表示复数z=i(–2+i)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. 函数32()31f x x x =-+是减函数的区间为 ( ) A (2,)+∞ B ．(,2)-∞ C ．(,0)-∞ D ．(0,2) 4. 已知角α的终边经过点(－4，3)，则cos α＝ ( ) A.45 B.35 C ．－35 D ．－45 5. 阅读图1-3所示的框图，运行相应的程序，输出S 的值为 ________． A.2 B.4 C.-4 D.-8 6. 下列函数中，既是偶函数又存在零点的是( ) A.y=lnx B.2 1y x =+ C.-y=sinx D.y=cosx 7.已知向量(1,),(,2)a m b m ==, 若a //b , 则实数m 等于 （ ） A ． B C ． D ．0
8. 在△ABC 中，AB →＝c ，AC →＝b .若点D 满足BD →＝2DC →，则AD → ＝( ) A. 23b －13c B.53c －23b C.23b ＋13c D.13b ＋23 c 9. 若变量,x y 满足约束条件211y x x y y ≤??+≤??≥-? ,2x y +则的最大值是 （ ） A ．5- 2 B ．0 C ．53 D ．52 10. 已知函数f (x )＝3sin ωx (ω＞0)的周期是π，将函数f (x )的图象沿x 轴向右平移π8 个单位，得到函数y ＝g (x )的图象，则函数g (x )的解析式为( ) A ．g (x )＝3sin ???2x －π8 B ．g (x )＝3sin ? ???2x －π4 C ．g (x )＝－3sin ????2x ＋π8 D ．g (x )＝－3sin ? ???2x ＋π4 11.已知函数()y xf x '=的图象如右图所示(其中'()f x 是函数()f x 的导函数)，下面四个图 象中()y f x =的图象大致是( ） 12. 已知函数()(ln )f x x x ax =-有两个极值点,则实数a 的取值范围是 （ ） A ．(,0)-∞ B ．1(0,)2 C ．(0,1) D ．(0,)+∞ 第Ⅱ卷（选择题 共90分） 二、填空题，本题共4小题，每小题5分，共20分. 13.已知向量a =（–1，2），b =（m ，1）.若向量a +b 与a 垂直，则m =______________. 14 函数cos2y x x =+ 最小正周期为______________. 15．已知tan 2α=-，()1tan 7 αβ+=，则tan β的值为_______ . 16. 在锐角三角形ABC 中，已知|AB →|＝4，|AC →|＝1，△ABC 的面积为3，则AB →·AC → 的值为_____________ 三、解答题：共70分。解答应写出文字说明，证明过程或演算步骤，第17至21题为必考
1 陕西省西安市第一中学2021届高三上学期第五次模拟考试 物理试题 一、单选题：本大题共10小题，每小题4分，共40分。 1．如图所示，在边长为L 的正方形的每个顶点都放置一个点电荷。a 、b 、c 三点的电荷量均为+q ，d 点的电荷量为-2q ，则正方形中点O 的电场强度的大小和方向为( ) A ． 26kq L ，由O 指向b B ．26kq L ，由O 指向d C ．29kq L ，由O 指向c D ．29kq L ，由O 指向d 2. 一电荷量为+Q 的小球放在不带电的金属球附近，所形成的电场线分布如图所示，金属球表面的电势处处相等，a 、b 为电场中的两点，则( ) A ．a 点的电势比b 点低 B ．a 点的电场强度比b 点小 C ．带负电的电荷q 在a 点的电势能比在b 点的小 D ．带正电的电荷q 从a 点移到b 点的过程中，电场力做负功 3．如图所示，虚线a 、b 、c 代表电场中三个等势面，相邻等势面间的电势差相等，实线为一带正电的质点仅在电场力作用下通过该区域时的运动轨迹，P 、Q 是这条轨迹上的两点，据此可知（ ） A ．三个等势面中，a 的电势最高 B ．带电质点通过P 点时电势能较大 C ．带电质点通过P 点时动能较大 D ．带电质点通过P 点时加速度较小 4．已知一个无限大的金属板与一个点电荷之间的空间电场分布与等量异种电荷之间的电场分布类似，即金属板表面各处的电场强度方向与板面垂直．如图所示MN 为无限大的不带电的金属平板，且与大地连接．现将一个电荷量为Q 的正点电荷置于板的右侧，图中a 、b 、c 、d 是以正点电荷Q 为圆心的圆上的四个点，四点的连线构成一内接正方形，其中ab 连线与金属板垂直．则下列说法正确的是( ) A ．b 点电场强度与c 点电场强度相同 B ．a 点电场强度与b 点电场强度大小相等 C ．a 点电势等于d 点电势 D ．将一试探电荷从a 点沿直线ad 移到d 点的过程中，试探电荷电势能始终保持不变 5．如图，一平行板电容器连接在直流电源上，电容器的极板水平，两带电微粒a 、b 所带电荷量大小相等、符号相反，使它们分别静止于电容器的上、下极板附近，与极板距离相等。现同时释放a 、b ，它们由静止 开始运动，在随后的某时刻t ，a 、b 经过电容器两极板间下半区域的同一水平面。a 、b 间的相互作用和重力可以忽略，则下列说法正确的是 ( ) A ．a 的质量比b 的大 B ．在时间t 内，a 和b 的电势能的变化量相等 C ．在时间t 内，b 的动能与电势能之和减小 D ．在t 时刻，a 和b 的动量大小相等 6. 如图所示，在纸面内有一直角三角形ABC ，P 1为AB 的中点， P 2为AP 1的中点，BC =2 cm ，∠A = 30°．纸面内有一匀强电场，电子在A 点的电势能为-5 eV ，在C 点的电势能为19 eV ，在P 2点的电势能为3 eV ．下列说法正确的是( ) A ．A 点的电势为-5 V B ．B 点的电势为-19 V C ．该电场的电场强度方向由B 点指向A 点 D ．该电场的电场强度大小为800 V/m 7．如图甲所示，两平行金属板a 、b 间距为d ，在两板右侧装有荧光屏MN （绝缘），O 为其中点。在两板a 、b 上加上如图乙所示的电压，电压最大值为U 0。现有一束带正电的离子束（比荷为k ），从两板左侧沿中线方向以初速度v 0，连续不断地射入两板间的电场中，设所有离子均能打到荧光屏MN 上，已知金属板长L =2v 0t 0，则在荧光屏上出现亮线的长度为( ) A ．2 00kU t d B ．2 0032kU t d C ．2002kU t d D ．kdU 0t 02 8．图甲为竖直固定在水平面上的轻弹簧，t =0时刻，将一金属小球从弹簧正上方某一高度处由静止释放，小球落到弹簧上压缩弹簧到最低点，然后又被弹簧弹起离开弹簧，上升到一定高度后再下落，如此反复。通过安装在弹簧下端的压力传感器，测出此过程弹簧弹力F 随时间t 变化的图像如图乙所示，不计空气阻力，则 ( ) A ．t 1时刻小球的动能最大 B ．t 2时刻小球的加速度最大 C ．t 3时刻弹簧的弹性势能最大 D ．图乙中图线所围面积在数值上等于小球动量的变化量 9．江西艺人茅荣荣，以7个半小时内连续颠球5万次成为新的吉尼斯纪录创造者，而这个世界纪录至今无人超越。若足球用头顶起，某一次上升高度为80cm ，足球的重量为400g ，与头顶作用时间?t 为0.1s ，足球每次上升高度可认为不变，则足球本次在空中的运动时间、足球给头部的平均作用力大小分别是( )（空气阻力不计，g =10m/s 2） A ．t =0.4s ；F N =40N
临渭区基本情况 临渭区是渭南市政府所在地，是陕西东部政治、经济和文化中心。全区辖28个乡镇、办事处，国土总面积1221平方公里，人口87万，其中城市人口30万。 渭北产业园位于渭南市城北2公里处，是规划中的渭南中心城市的重要组成部分。2003年底设立，园区规划总面积37平方公里，人口20万，一期启动面积5.2平方公里。自2003年12月20日第一份入园合同生效至今已有29个项目合同成功落户，投资额在8亿元以上，其中5个项目已完成投资、投产运营，17个项目在动工建设，其它几个项目也在前期设计和积极的准备中。 园区依托西安大都市有其优越的区位、交通、资源、政策等优势： 1、这里是渭河冲积平原，800里秦川腹地，跨渭河有四座大桥与渭南市区连接，非常方便。 2、这里有陇海铁路、西南铁路、全国首条高速客运专线、连霍高速公路、310、108国道，107省道、关中环线横穿园区，交通十分便捷。 3、这里有明显的资源优势。农产品加工原料供应充足。劳动力资源非常丰富，境内就业培训机构遍布，拥有各类职业技术院校20余所，开设的专业有：电子、机械、数控、电工、服装设计等30余个，是全国最大的技工培训基地，“渭
南技工”已成为全国知名品牌，能满足各类企业用工需求。 4、这里有低廉的投资成本。低于成本的土地出让价格、优惠的税费政策、优质的保姆式服务以及充足低廉的劳动力、能源等优势，使入园企业能以最小的投入获得最大的收益。 5、这里有优惠的奖励政策。来这里投资兴业的所有客商，除可享受国家对西部开发给予的优惠政策外，临渭区政府还根据投资领域、性质、规模等，在土地出让、税费减免、利用外资诸方面，制定了一系列更加优惠的政策，欢迎您们前来投资兴业。 6、这里有一支热情、敬业、周到的服务队伍。“保姆式服务”会让您放心，无论企业大小、投资多少均可享受星级服务。从项目洽谈、签约到建设，园区都会派专人一包到底。“实行厂内的事情你来办，厂外的事情交给我们办”，不收取任何费用。 朋友们，一方福地，人共求之，我们热忱欢迎您和您的朋友前来咨询、投资、发财。
尚德中学科技节物理知识竞赛试题参与物理知识问答，提升学习物理兴趣，加油吧，少年。。。 第1项：想从镜子里看到放大的像应该使用 ○ A.凸面镜 ○ B.凹面镜 ○ C.平面镜 第2项：用手电筒同时斜射在一面镜子和一张灰色纸上，观察发现○ A.镜子亮 ○ B.灰纸亮 ○ C.一样亮 第3项：一朵花放在夹角为60°两面镜子中间，从镜子里可以看到○ A.2朵 ○ B.4朵 ○ C.5朵 第4项：在游泳池的水下，仰望水面，水面 ○ A.清澈透明
○ B.浑浊 ○ C.像水银一样反光 第5项：彩色电视荧光屏上的彩色是3种光合成的○ A.红、黄、蓝 ○ B.红、绿、蓝 ○ C.红绿蓝 第6项：黄昏时，太阳呈红色，是因为黄昏时 ○ .A太阳发出较多的红光 ○ B.阳光经过空气的路途较长 ○C距地球较近 第7项：从以下的哪种镜子中看到的像是和你自己一模一样○ A 平面镜 ○ B.两个相交为90°的平面镜 ○C两个相交为45°的平面镜 第8项：高山上的平均气温比海平面的要低，原因是○ A.高山终年积雪 ○ B.风大、日照少 ○ C.高山的气压低
第9项：冬天触摸室外的铁器和木材，会感到冷热不一样，那么○A.木头的温度高 ○ B.铁的温度高 ○C铁和木头的温度一样高 第10项：南极海洋上的浮冰的味道是 ○ A.淡的 ○B和海水一样咸 ○ C.比海水咸 第11项：两种物质被称为同位素，是因为它们 ○ A .原子核内质子数相等 ○B.原子核内中子数相等 ○C.原子核内中子加质数相等 第12项：大气臭氧层的主要作用 ○ A.有助于杀菌 ○B.反射电磁波 ○ C.吸收阳光中的紫外线 第13项：冬天下雪后，为了融雪要在马路上撒盐，因为
陕西省西安市第一中学选修1高中物理《机械波》测试题(含答案) 一、机械波选择题 1．某一列简谐横波中的质点a的振动图象如图甲所示，这列简谐横波在t=1.0s时的波形图如图乙所示，则（） A．这列波沿x轴负方向传播，波度v=0.02m/s B．这列波沿x轴负方向传播，波度v=0.5m/s C．t=0至t=1s的时间内，质点a的位移始终在增大 D．t=4s时刻，a质点经平衡位置向下振动 2．一列波长大于3.6m的简谐横波沿直线方向由a向b传播，a、b相距6m， a 、b两质点的振动图象如图所示．由此可知 A．3 s末a、b两质点的位移相同 B．该波的波速为2 m/s C．该波的波长为4m D．该波由a传播到b历时1.5s 3．一列简谐横波沿x轴正方向传播，频率为5Hz，某时刻的波形如图所示，介质中质点A 在距原点8cm处，质点B在距原点16cm处，从图象对应时刻算起，质点A的运动状态与图示时刻质点B的运动状态相同需要的最短时间为（） A．0.08s B．0.12s C．0.14s D．0.16s 4．声波能绕过某一建筑物传播而光波却不能绕过该建筑物，这是因为 A．声波是纵波，光波是横波B．声波振幅大，光波振幅小 C．声波波长较长，光波波长很短D．声波波速较小，光波波速很大 5．一列波长大于3m的横波沿着x轴正方向传播，处在和的两质点A、B 的振动图象如图所示，由此可知（）
A ．波长为4m B ．波速为2m/s C ．3s 末A 、B 两质点的位移相同 D ．1s 末A 点的速度大于B 点的速度 6．如图所示，一列简谐波向右以4 m/s 的速度传播，振幅为A 。某一时刻沿波的传播方向上有 a 、b 两质点，位移大小相等，方向相同.以下说法正确的是（ ） A ．a 、b 两个质点在振动过程中位移总是相同 B ．再经过 0.25 s ， a 质点回到平衡位置且向下振动 C ．再经过 0.5 s ， a 、b 两质点位移第一次大小相等、方向相反 D ．在接下来的 0.5s 内 a 质点的路程为2A 7．一列简谐横波沿x 轴传播。在x =12m 处的质元a 的振动图线如图甲所示，在x =18m 处的质元b 的振动图线如图乙所示。下列判断正确的是（ ） A ．质元a 在波谷时，质元b 一定在平衡位置向y 轴正方向振动 B ．若波沿+x 方向传播，这列波的最大传播速度为3m/s C ．若波沿－x 方向传播，这列波的最大波长为24m D ．若波的传播速度为0.2m/s ，则这列波沿+x 方向传播 8．一列沿x 轴正方向传播的简谐横波在t =0时刻的波形如图所示，此时波恰好传到平衡位置在1 2.5m x =处的P 点。已知平衡位置在2 5.5m x =处的Q 点在0~8s 内运动的路程为0.2m ，则下列说法正确的是（ ）