江西省南昌二中、临川一中2017届高三下学期期中联考英语试题含答案

江西省南昌二中、临川一中2017届高三下学期期中联考英语试题含答案
江西省南昌二中、临川一中2017届高三下学期期中联考英语试题含答案

高三联考英语试题

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,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. Where are the speakers going?

A. To New York

B. To Canada

C. To Mexico

2. Why can’t Tim take Jenny’s shift?

A. He has a soccer game.

B. He is on vacation.

C. He has to go to a funeral.

3. What does the woman mean?

A. There is a bomb in the refrigerator.

B. They will probably run out of food.

C. More than enough food has been prepared.

4. What subject does the woman think less difficult?

A. Literature

B. History

C. Mathematics

5. What did the woman study in college?

A. Business

B. Art

C. Spanish

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,各个小题将给出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6-7题。

6. What happened to Miguel last weekend?

A. He lost his textbook.

B. He took care of his grandma.

C. His house was burned to the ground.

7. Why will Miguel be late to Ms.Perry’s office?

A. He has to buy his lunch.

B. He had to do his homework.

C. He has to make food for his grandma.

听下面一段对话,回答第8-10 题。

8. What does the man do for his job?

A. He cleans houses.

B. He does paperwork.

C. He sells houses.

9. When does the conversation take place?

A. On Thursday

B. On the weekend.

C. On Friday

10. Why does the woman recommend the man her friend?

A. She is moving.

B. She enjoyed working with him.

C. Her friend is moving to Springfield.

听下面一段对话,回答第11-13题。

11. How old is Sam?

A. He’s in college.

B. He’s in high school.

C. He’s still a young kid.

12. What does Sam plan to do this summer?

A. Work at the pool

B. Learn to skateboard

C. Go to the lake with his mother

13. What does Sam need help with?

A. Filling out job applications

B. Shopping in a supermarket

C. Paying for summer school

听下面一段对话,回答第14-17题。

14. Why does the woman always sleep in?

A. She doesn’t work

B. She sets her own schedule.

C. She needs more sleep than most people.

15. When does the man get to work?

A. Around 7

B. Around 9

C. Around 10

16. What does the man suggest to the woman?

A. She should get up earlier.

B. They should switch schedules.

C. She should learn to go to bed on time.

17.What will the speakers do today?

A. Go on a hike

B. Go to the movies

C. Go to work

听下面一段独白,回答第18-20题。

18. How do Uber drivers know where to go?

A. They call a phone number.

B. They request to know on the app.

C. A map shows them where people need cars.

19. Who mostly drives for Uber?

A. Former taxi drivers

B. University students

C. People who have other jobs

20. What does Travis Kalanick predict?

A. Uber will totally replace taxis.

B. Cars will be able to drive themselves.

C. Prices for transportation will go up everywhere.

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,从每题所给的四个选项(A、B、C和D)中,选出最佳选项。

A

Travel Diary

Wednesday: Belfast’s newest attraction is a prison. It is only just open but it deserves a place in the top 10 prison visits in the world. A colleague who stayed there for political reasons showed me his former room. The inside story of some of the escapes added greatly to the visit Maybe, they could use former prisoners as guides.

Thursday: Belfast was shining brightly in the sun as we took a tour which celebrates the musical heritage of the city. The music was played in the wrong order---Van Morrison when it should be Francie Mcpeake, Ronnie Carroll when it should be Ruby Murray, but it all added to the experience.

Friday: The roads to Dublin Airport were empty, giving a holidaymaker a false sense of comfort. The terminal(航空站)was in a terrible mess. Flight EI151 had a very small number of tourists arguing loudly with each other and demanding passengers exchange seats so large groups could be together. We arrived into London Heathrow Terminal One. A nice woman guided me to the bus for Southampton. I set off to see a cruise(航游) ship.

Saturday: The cruise ships were big. They lined up a series of three, Solstice, Equinox, Eclipse; They wanted us to think of them as sunny.

This was the start of a new route to the Caribbean. Travel agents were lined up at the martini bar and there was a black-tie dinner to attend. But I didn’t think it applied to me.

21. What did the author do on Wednesday?

A. He visited a prison

B. He worked as a guide

C. He went to see a colleague

D. He stayed with a former roommate

22. How does the author think about his trip from Dublin to London?

A. Very nice

B. Unpleasant

C. Frightening

D. Comfortable

23. On which day did the author attend music performances?

A. Wednesday

B. Thursday

C. Friday

D. Saturday

B

To tell the truth, my house is made out of wood, glass and stone. It is also made out of software.

If you come to visit, you'll probably be surprised when you come in. Someone will give you an electronic PIN (个人身份号码) to wear. This PIN tells the house who and where you are. The house uses this information to give you what you need. When it's dark outside, the PIN turns on the lights nearest to you, and then turns them off as you walk away from them. Music moves with you too. If the house knows your favorite music, it plays it. The music seems to be everywhere, but in fact other people in the house hear different music or no music. If you get a telephone call, only the nearest telephone rings.

Of course, you are also able to tell the house if you want something. There is a home control console(控制台), a small machine that turns things on and off around you.

The PIN and the console are new ideas, but they are in fact like many things we have today. If you want to go to a movie, you need a ticket. If I give you my car keys, you can use my car. The car works for you because you have the keys. My house works for you because you wear the PIN or hold the console.

I believe that ten years from now, most new homes will have the systems that I've put in my house. The systems will probably be even bigger and better than the ones I've put in today.

I like to try new ideas. I know that some of my ideas will work better than others. But I hope that one day I will stop thinking of these systems as new, and ask myself instead, "How will I live without them?"

24.What does the passage mainly discuss?

A. How to develop a new system.

B. The function of the PIN.

C. A home for the future.

D. Easy life in the future.

25.What can’t be done in the writer’s new house according to the passage?

A. Turning on the lights.

B. Going swimming.

C. Getting a telephone call.

D. Playing music.

26.The writer's new house is different from ordinary ones mainly because _______.

A. it has your favorite music following you

B. you can make a telephone call anywhere

C. the writer is able to change his new idea into practice

D. it has been controlled by computers

27.What is the writer most likely to be according to the passage?

A. An IT expert

B. A famous doctor

C. An idealist

D. An experienced teacher

C

It is surprising that no one knows how many children receive education in English hospitals, still less the content or quality of that education. Proper records are just not kept. We know that more than 850,000 children go through hospital each year, and that every child of school age has a legal right to continue to receive education while in hospital. We also know there is only one hospital teacher to every 1,000 children in hospital.

Little wonder the latest survey concludes that the extent and type of hospital teaching available differ a great deal across the country. It is found that half the hospitals in England which admit children have no teacher. A further quarter have only a part-time teacher. The special children’s hospitals in major cities do best; general hospitals in the country and holiday areas are worst off. From this survey, one can estimate that fewer than one in five children have some contact with a hospital teacher—and that contact may be as little as two hours a day. Most children interviewed were surprised to find a teacher in hospital at all. They had not been prepared for it by parents or their own school. If there was a teacher they were much more likely to read books and do math or number work; without a teacher they would only play games.

Reasons for hospital teaching range from preventing a child falling behind and maintaining the habit of school to keeping a child occupied, and the latter is often all the teacher can do. The position and influence of many teachers was summed up when parents referred to them as “the

library lady” or just “the helper”. Children tend to rely on concerned school friends to keep in touch with school work. Several parents spoke of requests for work being ignored or refused by the school. Once back at school children rarely get extra teaching, and are told to catch up as best as they can.

Many short-stay child-patients catch up quickly. But schools do very little to ease the anxiety about falling behind expressed by many of the children interviewed.

28.It can be inferred from the latest survey that________.

A. hospital teaching across the country is similar

B. each hospital has at least one part-time teacher

C. all hospitals surveyed offer education to children

D. only one-fourth of the hospitals have a full-time teacher

29.Hospital teachers are found________.

A. not welcomed by the children and their parents

B. necessary

C. not welcomed by the hospitals

D. capable

30.To catch up with their school work, children in hospital usually turn to________.

A. hospital teachers

B. parents

C. schoolmates

D. school teachers

31.We can conclude from the passage that the author is________.

A. unfavorable towards children receiving education in hospitals

B. in favor of the present state of teaching in hospitals

C. unsatisfied with the present state of hospital teaching

D. satisfied with the results of the latest survey

D

Can you define great art? On the one hand, we can all see that great art is old art which is called great. But how do we know which art of our own times is great, and which will be forgotten? And who decides?

These are important questions, for the great art of the past often was not considered great during its own time. When Shakespeare and Charles Dickens were writing, for example, most critics considered them as hack (平庸的) writers with little or no literary ability.

Similarly, Van Gogh and many of the other Impressionist painters of the late nineteenth century were not allowed to participate in events involving what were thought to be the "real"

painters of the time, and often they were very poor. Yet today their paintings often sell for millions of dollars, while those so-called "real" painters are now barely remembered.

So what makes great art? Can, for example, rock music be great art? Music videos? Cartoons and comics? Those who call themselves critics of the fine arts often have been the last to recognize great art in the past, and we can probably expect this to be the situation today.

Critics often don’t recognize great art because they tend to be prejudiced against what is popular. Popular works, whether they are novels, movies, or comics, are usually considered to be produced for the sake of money only, and not for the sake of art.

But popularity, it seems to me, is one of the three signs that a present-day work of art may come to be thought of as great. The other two are that it is groundbreaking, and that it is inherently (内在的) beautiful.

Many works have one or even two of these qualities of being popular, unusual, and beautiful. But having all the three often will mean that a work of art will someday be seen to be great, though it may take a good spoonful of time, such as a century or two, to know for sure. 32.The first paragraph is intended to__________.

A. lead to the following and arouse the reader’s curiosity

B. introduce some real painters to the readers

C. introduce the questions the writer wants to answer

D. explain what kind of art will become popular

33.The author used the examples of Shakespeare, Charles Dickens and Van Gogh to prove _____.

A. these masters’ works have some shortcomings

B. these masters wouldn’t have been so successful without the critics

C. truly beautiful works of art are never understood when first created

D. great masters are often not acknowledged while they were alive

34.According to the author, great works _______.

A. may be presented in different forms

B. are generally valued by critics

C. are thought valuable because of their sale price

D. will lose their value if they’re not accepted

35.What can be inferred from the passage?

A. Critics have changed their attitudes to great works.

B. Most of the opinions of critics are valueless.

C. The work of art itself, not the critics, determines its greatness.

D. Works of Impressionist painters will be great one day.

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。

We’ve all experienced peer pressure. It happens to everybody. How ever, people have different reactions. Confident people refuse to do things they don’t want to do, but shy and anxious people often give in. It may be because they want to be liked. It may be because they worry that their friends will make fun of them, or perhaps they're just curious about trying something new. 36 .

It’s hard to be the only one who says no and the question is: how do you do it? 37 . If you think that missing maths, or smoking, or going somewhere you know your parents wouldn’t like is a bad idea then the answer is simple: don’t do it. It’s your decision, nobody else’s. You don’t need to be aggressive. You don’t need to shout and scream, but you must be confident and you must be firm. You need to say, “No thanks. I don’t want to do that.”

Being on your own against everybody else is very hard, so it can really help to have at least one other peer, or friend, who will say no too. 38 . You want friends who will support you when you’re in trouble. You don’t want people who wi ll always agree with the majority. Remember, the most popular people aren’t always the most trustworthy.

39 . You can learn a lot from people your own age. They can teach you great football skills or the best way to do your maths homework. They can recommend music and advise you on fashion. And don’t forget you can tell them things too, and that always feels great. So, find friends who have similar interests. And remember, friendship isn’t about feeling depressed and guilty.

40 .

A. Choose your friends carefully.

B. Firstly, you must decide what you believe in.

C. It’s about sharing experiences and having fun.

D. Of course, peer pressure isn’t completely bad.

E. It may be because they were all born to be stubborn.

F. Depression and guilt will surely give you peer pressure.

G. Whatever the reason, some people end up doing things they really don’t want to.

第三部分英语知识运用(共两节,满分45分)

第一节完形填空(共20小题;每题1.5分,满分30分)

阅读下面短文,从短文后各题所给的四个选项(A, B, C和D)中,选出可以填入空白处的最佳选项。

Last Saturday, a son of my friend was invited to a “No gift s" birthday party. He 41 to attend it as told and not bring a gift. At the door, he was 42 by a lovable birthday child whose little face fell as she asked him, “Didn’t you bring a gift?” while 43 a table full of presents behind her. Everyone else had 44 something anyway!

Having learned that 45 , the boy brought a small gift to the next “No gifts” party. This time all other guests said that the invitation had 46 stated no gifts, and he was making everyone look 47 . Ack!

When the next “No gift”48 arrives, what should he do? “I will not 49 rather than continue to get it 50 ,” he told me. Clearly, no good can come from ___51___it.

Perhaps, doing as 52 is a useful way if you are told “53 ” and decide to go the 54 anyway. And if this meets with a 55 child, try saying, “I’m so sorry, but your 56 told me not to bring anything.” While it won’t feel 57 in the moment to destroy the 58 of a lovable child, doing so may teach him two invaluable lessons: never to 59 presents---- and never to let his parents make 60 requests on his behalf that they don’t intend to honor.

41. A. pretended B. hesitated C. decided D. continued

42. A. met B. followed C. guided D. joined

43. A. looking for B. waving at C. pointing to D. dealing with

44. A. received B. shown C. owned D. brought

45. A. method B. lesson C. skill D. concept

46. A. clearly B. partly C. gradually D. suddenly

47. A. strangely B. bad C. serious D. lovely

48. A. suggestion B. instruction C. information D. invitation

49. A. serve B. prepare C. attend D. compete

50. A. ready B. wrong C. unfair D. perfect

51. A. changing B. discovering C. following D. ignoring

52. A. desired B. instructed C. planned D. imagined

53. A. No gifts B. No good C. No thanks D. No value

54. A. table B. door C. office D. party

55. A. worried B. blamed C. disappointed D. surprised

56. A. children B. parents C. guests D. friends

57. A. generous B. fair C. good D. equal

58 A. expectation B. impression C. explanation D. description

59. A. wait for B. pay for C. care for D. ask for

60. A. rude B. urgent C. informal D. different

第二节语篇填空(共10小题;每小题1.5分,满分15分

Zhang Jianxing has been walking through the ancient forests of the Shennongjia National Nature Reserve for over two decades to find the wild man. He will not give up until he

____61___(come) facetoface with the creature. He began living in the mountain in 1994, after becoming ____62____(fascinate) by the wild man. Armed with a camera, he 63 (constant) looks for clues of the creature’s whereabouts, living off the land and ___64____(sleep) in abandoned homes and empty caves. To him, the wild man is a branch of science, ____65___ that he has been studying for a very long time. So far, he has collected enough evidence of the wild man’s _____66___(exist)-----more than 100 hair samples and 3,000 photos of large footprints. He even came close to seeing it for himself no less than nineteen ____67___(time). However, most scientists regard it as nothing more than a legend ____68____ there is a lack of concrete evidence. But Zhang Jianxing ___69___(convince) that he will one day find the wild man himself and prove the scientists wrong. To him , it’s just ____70___ matter of time

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)

此题要求改正所给短文中的错误。短文中有10处错误,每句中最多有两处。错误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:把多于的词用斜线(\ )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:每处错误及其修改均仅限一词。只允许修改10处,多者(从第11处起)不计分。Jim,

I am pleased to hear from you and I am written to tell you some changes in my school.

You are right. Great changes have been taken place in my school. It is no longer that it used to be three years ago, when there were only one teaching building and a playground. I am happy to tell you two new building have been built and are in use. One of them is a new classroom building, in it there are rooms for music, arts and computer teaching. The other is a library, where there are all kinds of books, newspapers and magazines. Therefore, my school is well equipped about sports facilities and musical instruments. The number of students has also grown from 1,500 to 2,500. What’s more, we had planted a lot of trees and flowers in and around the school.

I believe my school become better and better, and I hope you will visit my school again.

Yours,

第二节书面表达(共25分)Li Hua

假设你叫李华,计划暑假期间去英国Rossell School参加高中生交流活动。请给该校写信,询问相关事宜。

内容包括:(1) 对申请者的相关要求;(2) 课程的相关事宜;

(3) 住宿和吃饭的条件; (4) 需要做的相关准备。

注意:信的开头与结尾已给出,不计入总词数。

要求:词数100左右;可根据内容要点适当增加细节,以使行文连贯。

Dear Sir or Madam,

_______________________________________________________________________________ _________

Yours, Li Hua

参考答案

听力

1-5CACAB 6-10 CACAB 11-15 BBABA 16-20 BACCB

阅读

21-23 ABB 24-27 CBDA 28-31 DBCC 32-35 ADAC

七选五

36-40 GBADC

完型

41- 60 CACDB ABDCB DBADC BCADA

语法填空

61. comes 62.fascinated 63. constantly 64. sleeping 65. one

66. existence 67. times 68. because/as 69. is convinced 70. a

Jim,

I am pleased to hear from you and I am written to tell you some changes in my school.

writing

You are right. Great changes have been taken place in my school. It is no longer that it used to be three

what

years ago, when there were only one teaching building and a playground. I am happy to tell you

was

two new building

buildings

have been built and are in use. One of them is a new classroom building, in it there are rooms for music, arts and

which

computer teaching. The other is a library, where there are all kinds of books, newspapers and

magazines. Therefore,

Besides/Furthermore/Moreover

my school is well equipped about sports facilities and musical instruments. The number of students has also grown

with

from 1,500 to 2,500. What’s more, we had planted a lot of trees and flowers in and around the school.

have

I believe my school ∧become better and better, and I hope you will visit my school again.

will

参考范文:

Dear Sir or Madame,

I am just a graduate from an ordinary high school in China. I am very interested in the exchange program you offered. I am writing to obtain/inquire some more detailed information about it.

Firstly, I wonder what qualifications are required for applicants. Secondly, if admitted, could you please make it clear what courses am I going to take, and do I need to buy any books ahead of time? In addition, would you be so kind to introduce to me the conditions of board and accommodations? By the way, if I need to make any other preparations, let me know, will you?

Your immediate reply to my letter will be highly appreciated.

Yours,

Li Hua

江西省南昌市第二中学最新高一上学期期末考试试卷生物 解析版

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

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

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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)

2020届江西省南昌市第二中学高三下学期高考模拟检测(三)理综物理试题及答案

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D.后一个过程中,排球击中D 点时的速度较大 17.如图所示,在y >0的区域内存在方向垂直于纸面向里的匀强磁场 B 1在y <0的区域内存在方向垂 直于纸面向外的匀强磁场B 2,磁场B 2的磁感应强度大小是磁场 B 1的2倍,一带负电的粒子(重力不计)从y 轴上P (0,h )点以某一速 度沿x 轴正方向射入磁场B 1,若第一次经过x 轴时的横坐标为 3h ,则粒子第三次经过x 轴时的横坐标为 A. 33h B 732 h C. 43h D. 93h 18.宇航员飞到一个被稠密气体包围的某恒星上进行科学探索。他站在该恒星表面,从静止释放 一个质量为m 的物体,由于气体阻力,其加速度a 随下落位移x 变化的关系图象如图所示。 已知该星球半径为R ,万有引力常量为G 。下列说法正确的是 A.该恒星的平均密度为G R a 430 B.该恒星的第一宇宙速度为R a 0 C.卫星在距该恒星表面高h 处的圆轨道上运行的周期为03)(4a h R R +π D.从释放到速度刚达最大的过程中,物体克服阻力做功2 00x ma 19.如图所示是氢原子的能级示意图,一群处于 n=3 能级的氢原子在自发跃迁时会辐射一些光子, 用这些光子照射逸出功 2.25eV 的钾,普朗克常量 h=6.63×10-34J·s 。 则以下说法正确的是 A.波长为 60nm 的伦琴射线能使处于基态的氢原子电离 B.金属钾表面所发出的光电子的最大初动能为 9.84eV C.这群氢原子能发出三种不同频率的光 D.氢原子辐射光子后其核外电子动能变小 20.如图甲所示,绝缘水平面上存在方向水平向右的匀强电场,一带电物块以一定的初速度从O 点开始向右运动。取O 点为电势零点,该物块的 电势能与动能之和E 总、电势能E P 随它离开O

2019届湘赣十四校(湖南省长郡中学)、(江西省南昌市第二中学)等高三下学期第一次联考英语试题

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