2021年高一12月月考英语试题
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.When is Peter’s birthday?
A.On June 11th.
B. On June 12th.
C. On June 13th.
2.What does the wo man’s husband like?
A.Playing ball games.
B. Running .
C. Watching sport programs.
3.What does the woman think of driving?
A.Dangerous.
B. Safe.
C. fortable.
4.What does the man want to drink?
A.Wine.
B. Beer .
C. Water.
5.How far is it from here to the church?
A.300 meters.
B.500 meters.
C. 800 meters.
第二节（共15小题；每小题 1 分，满分 15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，你将有时间阅览室读各个小题，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.How long has the woman been in this area?
A.For a week.
B. For two weeks.
C. For three weeks.
7.What did the woman do yesterday?
A.She saw a movie.
B. She went to the beach.
C. She went shopping.
听第7段材料，回答第8至10题。
8.What’s the most possible relationship between the two speakers?
A.Colleagues.
B. Friends.
C. Neighbors.
9.How old is the man?
A. 7.
B. 17.
C. 27.
10. What does the woman want the man to do ?
A. To attend her party.
B. To make less noise.
C. To share the apartment. 听第8段材料，回答第11至13题。
11.Where does the man want to go?
A. To New York.
B. To New Jersey.
C. To Hawaii.
12. When will the man leave?
A. In the morning.
B. In the afternoon.
C. In the evening.
13. How much does one ticket cost?
A. $310.
B. $325.
C. $620.
听第9段材料，回答第14至17题。
14. What day is it today?
A. Thursday.
B. Friday.
C. Saturday.
15. What food does Bob like best?
A. Italian food.
B. Japanese food.
C. Chinese food.
16. What do they plan to buy?
A. A bike.
B. A camera.
C. A mobile phone.
17. When will the two speakers meet?
A. At 2:00 pm
B. At 3:00 pm.
C. At 4:00 pm.
听第10段材料，回答第18至20题。
18. What should people do when a crocodile attacks them?
A. Hit it on the nose .
B. Hit it on the head.
C. Hit it on the stomach.
19. Which animal does NOT attack things they think are dead?
A. A crocodile.
B. A bear.
C. A bull.
20. What should people do when a bull attacks them?
A. Wave their arms.
B. Climb up a tree.
C. Throw something away.
第二部分：英语知识运用（共两节，满分45分）
第一节：单项填空（共15小题；每小题1分，满分15分）
从A、 B、 C、 D四个选项中，选出可以填入空白处的最佳选项
21. ---Have you been wasting time on watching TV plays again?
---_____ . I’ve been studying a lot and I need a rest.
A. I don’t agree
B. Not really
C. No way
D. I couldn’t agree more
22. He will have learned English for eight years by the time he _____ from the university next year.
A. will graduate
B. will have graduated
C. graduates
D. is to graduate
23. The young couple reached their house in the evening and found that someone _____ into the house during the day.
A. broke
B. had broken
C. has broken
D. was breaking
24. Find ways to praise your students often, and you _____ they will open their hearts to you.
A. are going to find
B. have found
C. find
D. will find
25. ----The 2011 College Entrance Examination has just been over!
----Yes, it will be about two years _____we attend it.
A. until
B. before
C. after
D. since
26.After the examination we ______ for the park for fun.
A. went
B. drove
C. headed
D. ran
27.When ______our rooms, I found we had a lot in mon in our tastes.
A. pared
B. being pared
C. having pared
D. paring
28.It is the young man ______ was looked down upon ______ caught the murderer.
A. that; which
B. that; whom
C. who; that D whom; that
29.Studies show that students are more ______ to be addicted to playing puter games if they always play them before puter screens every day.
A. possible
B. probable
C. likely
D. perhaps
30.After taking ______ exercise, he caught a cold and soon had ______ temperature.
A. the; the
B. a; a
C. an; 不填
D. 不填；a
31.Saleha came home so thin and weak that her own children barely ______ her.
A. realized
B. understood
C. recognized
D. knew
32.Many players later failed drug test, ______ the race had to be rerun.
A. now that
B. so that
C. as soon as
D. in order that
33.---Why are we always having examinations?
---_____ whether we have grasped the knowledge in every subject.
A. Test
B. Testing
C. To test
D. Tested
34.We had better leave things ______ they are until the police arrive.
A. if
B. when
C. since
D. as
35.It is believed that Tom will make an outstanding racing driver because he has a talent ______ driving.
A. for
B. of
C. on
D. to
第二节：完形填空（共20小题；每小题1.5分，满分30分）
阅读下面短文，掌握其大意，然后从各题所给的四个选项（A、B、C、D）中选
出最佳选项。
Michel is a young girl who works for the police 36 a handwriting expert (专家). She has helped 37 many criminals (罪犯) by using her special talents (天才).
When she was fourteen, Michel was already _38_ interested in the differences in her friends' 39 that she would spend hours 40 them. After 41 college she went to France for a 42 two-year class in handwriting at the School of Police Science.
Michel says that it is 43 for people at hide their handwriting. She can discover 44 of what she needs to know simply 45 looking at the writing with her own eyes, 46 she also has machines 47 help her 48 out different kinds of paper and ink. This knowledge is often 49 great help to the police.
Michel believes that handwriting is a good 50 of what kind of person the 51 is. "I wouldn't go out with a fellow 52 I didn't like his handwriting. " She says. But she 53 she fell in love with her future husband, a young policeman 54 she studied his handwriting. It is later proved to be 55 , however.
36. A. with B. by C. like D. as
37. A. search B. catch C. follow D. judge
38. A. extra B. too C. quite D. so
39. A. books B. handwriting C. tongues D. letter
40. A. studying B. writing C. settling D. uncovering
41. A. attending B. finishing C. starting D. stepping into
42. A. powerful B. special C. natural D. mon
43. A. impossible B. safe C. easy D. main
44. A. most B. nothing C. little D. sight
45. A. with B. to C. by D. about
46. A. so B. for C. thus D. yet
47. A which B. in which C. who D. those
48. A. keep B. get C. make D. take
49. A. for B. to C. with D. of
50. A. test B. means C. sign(标记) D habit(习惯)
51. A. writer B. criminal C. thief D. policeman
52. A. whether B. unless C. after D. if
53. A. tells B. adds C. repeats D. cries
54. A. before B. after C. since D. till
55. A. necessary B. quite easy C. important D. all right
第三部分：阅读理解（共两小节，40分）
第一节：阅读下列短文，从每题所给的四个选项中选出最佳选项，满分30分）
A
The Taj Mahal (泰姬陵) is considered to be one of the most beautiful buildings in the world and the finest example of the late style of Indian architecture (建筑). It is at Agra in northern India. It lies beside the River Jumna in the middle of gardens with quiet pools.
The Taj Mahal was built by the Mogul emperor (皇帝) Shah Jehan, who ruled India in the seventeenth century. It is in memory of his favorite wife, Arjumand Banu Bagam, known as Mumtaz Mahal, who died in 1631. The building, which was pleted between 1632 and 1638, was designed by a local Muslim architect (建筑师), Ustad Ahmad Lahori. The whole building, with gardens and gateway structures, was pleted in 1643. The Taj Mahal stands at one end of the garden tomb with marble (大理石) path. The room is softly lighted by the light that passes through double screens of carved marble set high in the walls. The building now is kept in good condition.
The Taj Mahal took 22 years to build. Shah Jehan planned a similar building, but in black instead of white, to lie on the other side of the river. But before it could be built, Shah Jehan was imprisoned (监禁) by his son and buried next to his wife in the Taj Mahal.
56. The Taj Mahal was built for____ .
A. Mumtaz
B. Shah
C. Either Mumtaz or Shah
D. Both Mumtaz and Shah
57. Why do you think Shah Jehan was buried next to his wife?
A. His own tomb hadn't been built.
B. He hoped to be buried there.
C. King and Queen should be buried together
D. He liked Mumtaz all his life.
58. The passage mainly tells us____ .
A. why the Taj Mahal was built
B. the love story between Shah and Mumtaz
C. some information about the Taj Mahal
D. the Taj Mahal—the pride of Indians
59.. Form the passage we can learn that____ .
A. the Taj Mahal looks more beautiful than before .
B. the Taj Mahal doesn't exist now.
C. the Taj Mahal has pletely changed.
D. the Taj Mahal has bee a place of interest.
B
Everyone who has eaten instant noodles (方便面) before knows how it looks like. It is very easy to cook it instantly by putting the noodles into the boiling water and add in those MSG（味精） packets, together with your other food like eggs or vegetables. However, have you ever wondered whether this is the correct way of cooking it? When you first took out the noodles from the packaging, you will notice that the noodles are joined together nicely as a piece. In order to make the noodles joined together nicely side by side it needs some form of wax coating (石蜡涂层) in order to show an attractive instant noodles in front of us. Many people who enjoy eating instant noodles frequently do not really think too much of it as it seems very normal to everyone to have it nicely shown in front of us. However, researches have shown that the wax coating on the noodles is quite harmful to our body and we should not eat it too frequently. It is advisable to have a break of 2-3 days before we start to eat another packet of instant noodles as our body need about 3 days to clear that layer of wax coating away from our body system. Do you know the danger of having too much wax coating stored in our stomach? It will lead to CANCER if it is stored in our body system for a long period of time.
There are 2 key points to take note while preparing instant noodles:
1) Wash the instant noodles with warm water first, stir it and pour away the water containing the wax coating.
2) Repeat Step 1 and try to stir the noodles again to wash away the wax coating on the noodles before cooking it in a new pot of water.
Hope this article will let more people have self-awareness of the hidden danger of instant noodles and thus eat safely and stay healthy.
60. The purpose of the writer is to tell us ______.
A. how the instant noodles are made
B. how to cook instant noodles
C. something about the layer of wax coating on the noodles
D. how to eat instant noodles safely and healthily
61. It is true according to the passage that ______.
A. the instant noodles are joined together in a mess as a piece.
B. it is mon to see the noodles nicely joined together.
C. you can eat instant noodles as often as you like.
D. too much wax coating does no harm to our health.
62. Many people don’t care about too much of the wax coating on the instant noodles because _____.
A. they enjoy the taste of the wax coating
B. they take the wax coating for granted
C. they don’t know the hidden danger at all
D. their body clear it faster than other people
63. The function of the wax coating in the instant noodles is to ______.
A. make the noodles more delicious and tasty
B. make it easier to cook for the consumers
C. make the instant noodles healthier and more attractive to the consumers
D. make the noodles joined in a piece and avoid them sticking (粘) together
C
Why did the chicken cross the road? To get to the other side.
Most people know this joke. But recently, some people have been much more worried about how the grizzly bear and mountain lion can cross the road.
“Millions of animals die each year on U.S. roads,” the Federal Highway Administration reports. In fact, only about 80 ocelots, an endangered wild cat, exist in the U.S. today. The main reason? Roadkill.
“Eco-passages” may help animals cross the road without being hit by cars. They are paths both over and under roads. “These eco-passages can be extremely useful, so that wildlife can avoid road accidents,” said Jodi Hilty of the Wildlife Protection Society.
But do animals actually use the eco-passages? The answer is yes. Paul Beier of Northern Arizona University found foot marks left by mountain lions on an eco-passage that went under a highway. This showed that the lions used the passage.
Builders of eco-passages try to make them look like a natural part of an area by planting trees on and around them. Animals seem to be catching on. Animals as different as salamanders and grizzly bears are using the bridges and underpasses.
The next time you visit a park or drive through an area with a lot of wildlife, look around. You might see an animal overpass!
64. The writer uses the example of “ocelots” to show tha t _______.
A. wild animals have bee more dangerous
B. the driving condition has improved greatly
C. an increasing number of animals are killed in road accidents
D. the measure for protecting wildlife fails to work
65. From the story, we know an eco-passage is _______.
A. an underground path for cars
B. a fence built for the safety of the area
C. a bridge for animals to get over a river
D. a path for animals to cross the road
66. When the writer says that “animals seem to be catching on” (Para. 6), he
means _______.
A. animals begin to realize the dangers on the road
B. animals are crossing the road in groups
C. animals are increasing in number
D. animals begin to learn to use eco-passages
67. The best title for the passage is _______.
A. Special bridges help animals cross the road
B. Endangered animals increase because of roadkill
C. Animals fail to cross the road
D. Take steps to protect animals in danger
D
Robert is nine years old and Joanna is seven. They live at Mount Ebenezer. Their father has a big property(财产). In Australia they call a farm a property.
Robert and Joanna like school very much. At school they can talk to their friends but Robert and Joanna cannot see their friends. They live 100, perhaps 300, miles away and like Robert and Joanna, they all go to school by radio.
Mount Ebenezer is in the centre of Australia. Not many people live in “The Centre”. There are no schools with desks and blackboards and no teachers in “The Centre”. School is a room at home with a two-way radio. The teacher also has a two-way radio. Every morning she calls each student on the radio. When all students answer, lessons begin… Think of your teacher 300 miles away!
68. The children in “The Centre” do not go to a school because ______.
A. they live too far away from one another.
B. they do not like school.
C. they are not old enough to go to school.
D. their families are too poor.
69. In order to send their children to school, parents in “The Centre” of Australia
must have ______.
A. a property.
B. a car.
C. a school room at home.
D. a special radio.
70. A “Property” in Australia is a_________
A. house.
B. school.
C. farm..
D. radio.
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。
For over one hundred and fifty years, Americans of all social classes have worn blue jeans． 71 Whether they are worn for work or for fashion today．Strauss' invention continues to be popular not only among Americans but also among people around the world．
Levi Strauss was born in Germany in 1829． 72 He grew up in Kentucky before moving to New York in 1847．Before being an American citizen and moving to the West in 1853, Strauss worked in his brother's dry goods business．This gave him a chance to produce his famous invention．After the gold rush of 1949, Strauss decided to move to the West to seek his fortunes．
Strauss did not want to be a person who searched an area for minerals．Instead, he knew he could make a good living by selling supplies to the miners．At first, he planned to sell sewing supplies and cloth． 73 When he heard miners plaining that their clothes were easily broken or they usually tore their pockets during mining, he decided to use a special fabric to make pants for the miners．These pants proved so popular that he quickly ran out of materials to make more．
In 1873, Strauss received a letter from a Jewish tailor named Jacob Davis who had invented a process of connecting pockets with copper rivets（铆钉）．This made the pants last a long time．Because Davis did not have the money to patent his idea,
he offered to share it with Strauss if Strauss would agree to pay for the patent． 74 ．
By the time Strauss died in 1902, he had made a great contribution to American fashion． 75 The business has been growing ever since and Levi Strauss' pany is now one of the largest clothing panies in the world．
A．As a young boy, he moved with his family to the United States．
B．Nobody knew what kind of material was suitable．
C．Strauss agreed and Levi jeans have been made with metal rivets ever since．D．However, he did not get much business for those products．
E．Besides, he also made a great contribution to America's clothing industry．F．Since they were invented by Levi Strauss, they have bee a symbol of American consumer culture．
G．As the business grew, Strauss got much money from it．
第四部分：写作（共两节，共35分）
第一节：短文改错（10分）
文中共有10处语言错误，每句中最多有两处。错误涉及一个单词的增加、删除或修改。
删除：把多余的词用斜线（\）划掉。
增加：在缺词处加一个漏字符号（∧），并在该词下面写出该加的词。
修改：在错的词下划一横线，在该词下面写出修改后的词。
注意：1、每处错误及修改均仅限一词。
2、只允许修改10处，多者（从11处起）不计分。
We are now in the puter age. puters have made smaller, cheaper and easier to use. As the result, more and more people buy puters at home and office. As the development of the Internet, people all over the world can give and receive all kinds of informations. The puter is real a wonder in modern technology. Although puters have many strong points, it can never take the place of human brains. With our servants, puters need instruction from human beings. Therefore, the puter is at least an extension (扩展) of human brain.
第三部分书面表达 (15分)
假设你是新华中学学生会主席李明，你校将举办一次英语演讲比赛（speech contest）,希望附近某大学的外籍教师Lucy 女士来做评委，请参照以下比赛通知给她写一份信
注意：词数100左右
参考答案：
1-5 CCACB 6-10 ACCBB 11-15 CAAAC 16-20 CBABC
21—25 BCBDB 26—30 CDCCD 31—35 CBCDA 36-40 DBDBA 41-45 BBAAC 46-50 DACDC 51-55 ADBAD
56—59 AACD 60—63 DBCD 64—67 CDDA 68-70 ADC
71—75 FADCE
短文改错
第一行： made前加been the→a 第二行 at→for As→With
第三行：informations→information第四行：real→really it→they第五行：with-As instructions第六行：least→most
书面表达
Dear Ms. Lucy,
I'm Li Ming，the chairman of the Students’ Union of Xin Hua Middle School which is close to your university . I'm writing to invite you to be a judge at our English speech contest which will be held in our school on June 15 . It will start at 2：00 pm and last for about three hours . Ten students will deliver their speeches on the given topic "Man and Nature". We hope that you will accept our invitation if it is convenient for you . Please call me at 446765560if you have any questions .
I am looking forward to your reply .
With best wishes
Li Ming 22571 582B 堫29269 7255 牕32394 7E8A 纊Q27929 6D19 洙20339 4F73 佳WN33287 8207 與26759 6887 梇22209 56C1 囁21763 5503 唃38645 96F5 雵:
浙江省杭州市西湖高级中学2014-2015学年高一12月月考物 理试题 一、单项选择题：本题共10小题。每小题3分，共30分 1. 同学们都喜欢上体育课，一年一度的学校运动会同学们更是期待很大．如图所示为某 学校田径运动场跑道的示意图，其中A 点是所有跑步项目的终点，也是400 m 、800 m 赛跑的起跑点，B 点是100 m 赛跑的起跑点．在一次校运动会中，甲、乙、丙三位同学分别参加了100 m 、400 m 和800 m 赛跑，则从开始比赛到比赛结束 A ．甲的位移最大 B ．乙的位移最大 C ．丙的位移最大 D ．乙、丙的路程相等 2. 17世纪，意大利物理学家伽利略根据实验指出：在水平面上运动的物体之所以 会停下，是因为受到摩擦阻力的缘故。这里的实验是指“伽利略斜面实验”，关于该实验，你认为下列陈述错误的是（ ） A ．该实验是一理想实验，是在思维中进行的，无真实的实验基础，故其结果是荒谬可笑的。 B ．该实验是以可靠的事实为基础，经过抽象思维，抓住主要因素，忽略次要因素，从而更深刻地反映自然规律。 C ．该实验否定了亚里士多德“力是维持物体运动的原因”的错误概念。 D ．该实验为牛顿第一定律的提出提供了有力的实验依据。 3.物体先做初速度为零的匀加速运动，加速度大小为1a ，当速度达到v 时，改为以大小为2a 的 加速度做匀减速运动，直至速度为零，在加速和减速过程中物体的位移和所用时间分别为 1x 、1t 和2x 、2t ，下列各式不成立的是 ( ) A ．1221t t x x = B. 1221a a t t = C. 1 221a a x x = D.2121)(2t t x x v ++= 4．一质点以一定初速度自一光滑斜面底端a 点上滑，最高可到达b 点， c 是ab 的中点，如图所示，已知质点从a 至c 需要的时间为t o ，问 它从c 经b 再回到c 需要时间 A ．0)12(2t + B ．0)12(t + C ．022t D ．0t 5.如图所示，是A 、B 两质点从同一地点运动的x-t 图象，则下列 说法正确的是( ) A ． B 质点做曲线运动 B ．A 质点以20m/s 的速度匀速运动 C ．B 质点前4s 做加速运动， 4秒后做减速运动 D ． 前4s 内B 的位移比A 要大 6．在空中从某一高度相隔t 0s 先后释放两个相同的小球甲和乙，不计空气阻力，它们运动过程中： A ．甲、乙两球距离始终保持不变，甲、乙两球速度之差保持不变 B ．甲、乙两球距离越越大，速度之差也越越大
2020-2021学年高一下期3月考试 英语试题 本试卷分两部分，共8页。满分150分。考试用时120分钟。考试结束后，将答题卡提交至“家校本”。第二部分阅读理解（共两节，满分40分） 第一节(共10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中, 选出最佳选项，并在答题卡上将该项涂黑。 A Dear daughters, Most parents tell their children, “You can be anything you want when you grow up.” I feel the same and I say this often. But I also want you to understand that realizing your dreams comes from hard work, some good luck and good timing. Here are some words of wisdom for you as you make your way in the world, from an entrepreneur (企业家) and from your mama. 1. Be open-minded to changing your path along the way In high school, I wanted to be a politician. I left my hometown and went off to college in Washington,DC. There, I discovered that I loved to support women. It taught me that I’m creative, a strong leader and great at marketing. As a result, I moved on to be the head of a national health-care nonprofit. Becoming a mother while in that job opened my mind to launching a breast pump bag (储奶袋) business. Now I run a highly successful company that I started up on my own. I'm not a politician! 2. Failure is critical to your success Failure can be heartbreaking. But I will tell you that every failure I’ve had along the way has absolutely made me better. Failing the big math exam in high school and going to summer school was embarrassing. I eventually passed, and I’ve never failed an exam again. I learned from that experience to ask for help. Now, I ask for help in business all the time. I’m proud to be a role model to you as a mom and an entrepreneur. I hope I inspire you to believe that you can be anything you want. It will be my pleasure to watch your lives unfold before my eyes. Love, Your mom 21. In the writer’s opinion, what does it take to realize one’s dream? A. Failure, hard work and good timing. B. An open mind, failure and hard work. C. Hard work, good luck and good timing. D. A good dream, an open mind and hard work. 22. What did the writer learn from her failure? A. Failure can make us embarrassed.
吉林省延边第二中学2019-2020学年高一12月月考 英语试题 注意事项：答案必须写在答题卡上，答在试卷上无效。本试卷分第Ⅰ卷（选择题）和第Ⅱ卷（非选择题）两部分，本试卷满分120分。考试时间90分钟。 第Ⅰ卷（选择题共80分） 第一部分阅读理解（共20小题；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，并在答题卡上将该项涂黑。 A A Canadian woman who lost her diamond ring 13 years ago while cleaning her garden on the family farm is wearing it proudly again after her daughter-in-law pulled a carrot from the ground . Mary Grams, 84, said she can’t believe the lucky carrot actually grew through and around the diamond ring she had long given up hope of finding. She said she never told her husband, Norman, that she lost the ring, but only told her son. Her husband died five years ago. “I feel glad and happy, ”Grams said this week . “It grew into the carrot. I feel it amazing”, Her daughter-in-law, Calleen Daley, found the ring while getting carrots in for supper with her dog Billy at the farm near Armena, Alberta, where Grams used to live. The farm has been in the family for 105 years. Daley said while she was pulling the carrots she noticed one of them looked strange. She almost fed it to her dog but decided to keep it. When she was washing the carrots, she noticed the ring and spoke to her husband, Grams’son, about what she had found. They quickly called Grams. “I told her we foun d her ring in the garden. She couldn’t believe it, ”Daley said. “It was so strange that the carrot grew perfectly through that ring. ” Grams said she wanted to try the ring on again after so many years. With her family looking on, she washed the ring with a little soap to get the dirt off. It moved on her finger as easily as it did when her husband gave it to her. “We were laughing,”she said. “It fits. After so many years it still fits perfectly.” 1. How old was Grams when she lost her diamond ring? A. 13 B. 71. C. 84. D. 105.
高三月考（12月）物 理 试 题 一、选择题（本题10题，共50分） 1．牛顿发现万有引力定律的过程中，曾直接得益于 （ ） A ．亚里士多德的力学 B ．第谷、开普勒等人有关天体力学方面的研究 C ．笛卡尔等人对碰撞运动的研究 D ．伽利略自由落体定律 2．一物体在10 N 的外力作用下，产生10cm ／s 2的加速度，求该物体的质量．下列有几种 不同的求法，其中单位运用正确简捷而又规范的是（ ） A ．m ＝＝kg ＝1kg B ．m ＝＝＝＝100 kg C ．m ＝＝＝100kg D ．m ＝＝kg ＝100 kg 3．下列是某同学对电场中的概念、公式的理解，其中正确的是（ ） A ．根据电场强度的定义式E ＝，电场中某点的电场强度和试探电荷的电量成反比 B ．根据电容的定义式 C ＝ ，电容器的电容与所带电荷量成正比，与两极板间的电压 成反比 C ．根据真空中点电荷电场强度公式F ＝k ，电场中某点电场强度和场源电荷电量无 关 D ．根据电势差的公式U AB ＝，带电量为1C 的正电荷，从A 点移动到B 点克服电场力做功为1 J ，则A 、B 点的电势差为 －1V 4．如图所示，质量均为m 的小球A 、B 用两根不可伸长的轻绳连接后 悬挂于O 点，在外力F 的作用下，小球A 、B 处于静止状态，若要使两小球处于静止状 态且悬线OA 与竖直方向的夹角θ保持30°不变，则外力F 的大小不可能是（ ） A ．mg B ．mg C mg D ．mg 5．如图所示，以水平向右的加速度a ＝2m ／s 2向右加速前进的车厢内，有一光滑绝缘的水 平桌面，在桌面上用绝缘轻弹簧连结质量均为m ＝1kg 的两小球相对车静止．空间有水 平向右的匀强电场，且E ＝2．0×105N ／C ，A 、B 电量分别为q 1＝－1．0×10－5 C ，q 2 ＝＋1．0×10－5C （不考虑A 、B 之间库仑力的作用）．当剪断绳子瞬间，则以下有关说 法 正确的有（ ） F a 1010F a 2100.1/N m s 2 10//kg m s m s F a 100.1F a 100.1 E q Q U 2Q r AB W q 52233
2019-2020学年高一英语11月月考试题 （考试时间：90分钟试卷满分：120分） 测试范围：人教必修2 Unit 1~Unit 2。 第一部分阅读理解（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 Bored? Lonely? Out of condition? Why not try the SPORTS CENTER? TENNIS Indoor and outdoor courts. Coaching from beginners to advanced. Children only. Mornings. SKIING Gentle slopes. 3 levels instructors at weekends and Fridays. Daytime practice. 8-year-old upwards. SWIMMING 2 pools, heated, Olympic length. Women: Tuesday and Thursday. Men: Monday, Wednesday and Friday. Children: Saturday.
GOLF 9 hole practice course. Professional Coaching. Lessons must be booked in advance in daytime. Evening practice. Minimum age — 9 years. GYMNASTICS Maximum age —18 years. Children aged 5-10: Mondays and Wednesdays, 4:00-6:00 p.m. 10—18 year olds: Friday evenings. AND MANY MORE Table Tennis, Snooker(台球), Darts(标枪), Café(all day), Bar (lunch time and evenings), Nursery (weekdays and weekends, not evenings). Centre open 10:00 a.m.—10:00 p.m. Daily. Interested? More details, call 800-1234-5678. 1．What is this advertisement mainly about? A．It shows us some ways to spend weekends. B．It shows us a lot of ways to spend our holidays. C．It shows the ways of saving our time. D．It shows us a place to relax ourselves. 2．Which of the following is TRUE according to this passage? A．People can play tennis day and night.
高一物理上学期12月月月考考试试题 一、选择题 1．两个小球从两个不同高度处自由下落，结果同时到达地面，如图所示四幅图中，能正确表示它们的运动的是（） A．B． C．D． 2．倾角为37°的光滑固定斜面上，有两个用轻质弹簧连接的质量均为1 kg的小球A、B，在如图所示的水平向左的推力F作用下，一起沿斜面以4 m/s2的加速度向上做匀加速运动．已知弹簧的原长为20 cm，劲度系数为200 N/m，sin 37°=0.6，cos 37°=0.8．此时弹簧的长度l和推力F的大小分别为 A．0.25 m，25 N B．0.15 m，25 N C．0.25 m，12.5 N D．0.15 m，12.5 N 3．下列说法正确的是 A．物体的惯性大小只与本身的质量有关，质量大的物体惯性大，质量小的物体惯性小B．同一物体在地球上不同的位置受到的重力是不同的，所以它的惯性也随位置的变化而变化 C．一个小球竖直上抛，抛出后能继续上升，是因为小球运动过程中受到了向上的推力D．运动越快的汽车越不容易停下来，是因为汽车运动得越快，惯性越大 4．A、B两个物体在同一直线上作匀变速直线运动，它们的速度图象如图所示，则（）
A．A、B两物体运动方向相反 B．A物体的加速度比B物体的加速度大 C．前4s内A、B两物体的位移相同 D．t=4s时，A、B两物体的速度相同 5．如图所示，质量为8 kg的物体A静止在竖直的轻弹簧上面。质量为2 kg的物体B用细线悬挂起来，A、B紧挨在一起但A、B之间无压力。某时刻将细线剪断，则细线剪断瞬间，B对A的压力大小为(取g＝10 m/s2)( ) A．100 N B．20 N C．16 N D．0 N 6．一小船在静水中的速度为3m/s，它在一条河宽300m，水流速度为4m/s的河流中渡河，则该小船（） A．能到达正对岸 B．渡河的时间可能少于100s C．以最短时间渡河时，它沿水流方向的位移大小为400m D．以最短位移渡河时，位移大小为300m 7．一汽车通过拱形桥顶点时速度为10 m/s，车对桥顶的压力为车重的3/4，如果要使汽车在桥顶对桥面没有压力，车速至少为; A．15 m/s B．20 m/s C．25 m/s D．30 m/s 8．关于力学单位制下列说法正确的是（） A．kg、m/s、N是导出单位 B．kg、s、J是基本单位 C．只有在国际单位制中，牛顿第二定律的表达式才是F=ma D．在国际单位制中，质量的基本单位是kg，也可以是g 9．如图是某物体沿直线运动的位移—时间图象，则它的运动情况应该是（）
四川省新津中学2020学年高一英语3月月考试题 考试时间共120分钟，满分150分 第一部分听力（共两节，满分30分） 第一节听下面5段对话，每段对话后有一个小题。从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。听完每段对话后，你都有10秒钟的时间来回答有关小题和阅读下一小题。每段对话仅读一遍。 1. What is the man going to buy? A. Food. B.Drinks. C.Flowers. 2. What has the woman decided to do on Saturday? A. Go swimming. B.Visit a training center. C.Attend a wedding party. 3. How does the woman often get to the office? A. On foot. B.By bus. C.By car. 4．What is Eric Brown? A.A writer. B.A teacher. C.A doctor. 5. What does the man mean? A. He doesn’t like his job. B.His job is really interesting. C.He likes flying here and there. 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三个选顼中选出最佳选项，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. Which grade is John in? A. Senior One. B.Senior Two. C.Junior Three. 7. What is John's problem?
山东省荣成市第六中学2011-xx学年高一12月月考英语试题 第一节：英语知识运用（共两部分，满分45分） 第一部分：单项填空(共30小题；每小题1分，满分30分)从A、B、C、D四个选项中，选出可以填人空白处的最佳选项，并填写在答题卡上。 1.--According to my grandma, it’s a good idea to eat chicken soup when you have a cold. --（），scientists agree with her. A. Sooner or later B.Once in a while C. To be exact D.Believe it or not. 2.You have no idea how she finished the relay race （）her foot wounded so much. A.for B.when C.while D.with 3.Many people（）death in the earthquake as a result of the delay of the supplies. A.were starved to B.both A and B C.were straved C.starved to 4.She doesn’t ( )Tom’s hoesty,so she doesn’t ( )a single word he says. A.believe ; believe in B.believe: believe C.believe in; believe Dbelieve in; believe in
武威一中2019年秋季学期阶段性考试 高三年级物理试卷 一．选择题(本题共11小题，每小题4分，共44分。在每小题给出的四个选项中只有一项符合题目要求 1．某同学用位移传感器探究木块沿倾角为θ＝30°的斜面下滑时的运动情况，装置如图甲所示，乙图记录了木块下滑过程中的位移—时间图象，重力加速度g 取10 m/s 2 。下列说法正确的是( ) A ．木块在t ＝0时速度为零 B ．木块在t ＝1 s 时速度大小为2 m/s C ．木块的加速度逐渐增大 D ．木块的加速度大小为5 m/s 2 2．物体做匀加速直线运动，在时间T 内通过位移x 1到达A 点，接着在时间T 内又通过位移x 2到达B 点，则物体( ) A ．在A 点的速度大小为 x 1＋x 22T B ．在B 点的速度大小为3x 2＋x 1 2T C ．运动的加速度为2x 1T 2 D ．运动的加速度为x 1＋x 2 T 2 3．两辆完全相同的汽车，沿平直公路一前一后以相同的速度匀速行驶，若前车突然以恒定的加速度a 刹车，在它刚停住时，后车开始以恒定的加速度a 2刹车，已知前车在刹车过程中所行驶的距离为x 0，若要保证两 车在上述情况中不相撞，则两车在匀速行驶时保持的距离至少应为( ) A ．x 0 B ．2x 0 C ．2．5x 0 D ．3x 0 4．如图所示，用一轻绳将光滑小球P 系于竖直墙壁上的O 点，在墙壁和球P 之间夹有一长方体物块Q ，P 、Q 均处于静止状态，现有一铅笔紧贴墙壁压着绳子从O 点开始缓慢下移，则在铅笔缓慢下移的过程中( ) A ．P 所受的合力增大 B ．Q 受到墙壁的摩擦力逐渐变大 C ．P 对Q 的压力逐渐减小 D ．细绳的拉力逐渐增大 5．质量为M 的木块位于粗糙水平桌面上，若用大小为F 的水平恒力拉木块，其加速度为 a 。当拉力方向不变，大小变为2F 时，木块的加速度为a ′，则( ) A ．a ′＝a B ．a ′<2a C ．a ′>2a D ．a ′＝2a 6．如图质量为m 的物体P 置于倾角为θ1的固定光滑斜面上，轻细绳跨过光滑定滑轮分别连接着P 与小车， P 与滑轮间的细绳平行于斜面，小车以速率v 水平向右做匀速直线运动。当小车与滑轮间的细绳和水平方 向的夹角为θ2时，重力加速度为g ，下列判断正确的是( ) A ．P 的速率为v B ．P 的速率为v cos θ2 C ．绳的拉力等于mg sin θ1 D ．绳的拉力小于mg sin θ1 7．一皮带传送装置如图所示，皮带的速度v 足够大，轻弹簧一端固定，另一端连接一个质量为m 的滑块，已知滑块与皮带之间存在摩擦，当滑块放在皮带上时，弹簧的轴线恰好水平，若滑块放到皮带上的瞬间，
东台创新高级中学2020年11月份高一年级月考 英语卷 满分120分，考试时间120分钟 2020.11.24 第I卷选择题（三部分，共85分） 第一部分：听力（共两节，满分20分） 第一节（共5小题，每小题1分，满分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秒钟的时间来回来有关小题和阅读下一小题。每段对话仅读一遍。
1. What would the man like to drink? A. Iced coffee. B. Regular tea. C. Hot coffee. 2. Who will the woman go to the baseball game with? A. Her father. B. The man. C. Her mother. 3. What do we know about the man? A. He’s a college student. B. He won’t live at hom e next year. C. He bought too many clothes. 4. What does the woman mean? A. The man can get his hair cut anywhere. B. The man should go to a different neighborhood. C. The man doesn’t need a haircut. 5. Why did the woman ask the man for the time? A. Her watch just broke. B. She has a dinner appointment. C. She has to meet someone to go running. 第二节（共15小题；每小题1分，满分15分）
一物理12月月考试题 一、选择题（不定项选择，每小题5分，共65分） 1．如图所示，跳水运动员起跳时，下列关于运动员和跳板受力情况的叙述中，正确的是( ) A．跳板受到向下的弹力是因为跳板发生了形变 B．跳板受到向下的弹力是因为运动员的脚底发生了形变 C．运动员受到向上的弹力是因为跳板发生了形变 D．运动员受到向上的弹力是因为运动员的脚底发生了形变 2．关于摩擦力，以下说法中正确的是( ) A．运动物体可能受到静摩擦力作用，但静止物体不可能受到滑动摩擦力作用 B．静止物体可能受到滑动摩擦力作用，但运动物体不可能受到静摩擦力作用 C．正压力越大，摩擦力可能越大，也可能不变 D．摩擦力方向可能与速度方向在同一直线上，也可能与速度方向不在同一直线上 3．如图所示，在水平桌面上叠放着木块P和Q，水平力F推动两个木块做匀速运动,下列 说法中正确的是（） A．P受3个力，Q受3个力 B．P受3个力，Q受4个力 C．P受2个力，Q受5个力 D．P受4个力，Q受6个力 4．如图甲所示，一物块在粗糙斜面上，在平行斜面向上的外力F作用下，斜面和物块始终处于静止状态，当F按图乙所示规律变化时，关于物块与斜面间摩擦力的 大小变化的说法中正确的是( ) A．一定增大 B．可能一直减小 C．可能先增大后减小 D．可能一直增大 5．两个共点力F1、F2大小不等且它们之间的夹角不变，其合力大小为F， 则 ( ) A.F1、F2同时增大一倍，F也增大一倍 B.F1、F2同时增加10N，F也增加10N C.F1增加10N，F2减小10N，F一定不变 D.若F1、F2中的一个增大，另一个大小保持不变，则F一定增大 6．下列哪组力能使物体处于平衡状态（） A.3N、4N、8N B. 3N、5N、1N C.4N、7N、8N D.7N、9N、16N 7．如图所示,甲、乙、丙三个物体质量相同,与地面间的动摩擦因数相同,受到三个大小相同的作用力F.它们受到的摩擦力的大小关系是( ) A．三者相同 B．乙一定最大 C．丙一定最大 D．已知条件不够,无法判断8．如图所示，重80N的物体A放在倾角为30°的粗糙斜面上，有一根原长为10cm，劲度系数为1000N/m的弹簧，其一端固定在斜面底端，另一端放置物体A后，弹簧长度缩短为8cm，现用一测力计沿斜面向上拉物体，若滑块与斜面间最大静摩擦力为25N，当弹簧的长度仍为8cm时，测力计的读数不可能为( )
2019届高一下学期3月阶段检查 英语试卷 第一部分：语法知识（20题，每题1分，共20分） 1. If a computer crashes, you will lose the file you _________unless you save it regularly. A. are working B. work C. will work D. worked 2. The building burnt down in a big fire. ________was the base on which it stood. A. What remained B. All remained C. What was remained D. All what remained 3. To our surprise, that top student in our class failed _________a scholarship. A. obtain B. obtaining C. to obtain D. obtained 4.I feel honored to introduce Mr. White to you, without _________consideration our project would have ended in failure. A. whom B. that C. whose D. who 5._______ advertisements are of great help, I don't think we should entirely rely on them. A. Since B. While C. Once D. As 6. No one knows _________prevented the rumor from spreading. A. what was it that B. what it was that C. how it was that D. why it was that 7. Joe‘s ______ in the get-together surely brought us a lot of pleasure as he is a man with a strong sense of humour. A. joining B. having been joined C. joined D. had joined 8. After John stayed in shanghai for a couple of days, he got the impression _________ the city was very fascinating. A. which B. why C. where D. that 9. Don't leave the chocolates _______Cathy can get them. They are not good for teeth. A. whether B. in which C. where D. unless 10. Once harm ______ to the environment, it takes years to have the system recovered. A. does B. is done C. will be done D. be done
安徽省淮南市第二中学2016-2017学年高一英语12月月考试题（创新班）I听力 第一节 听下面5段对话,每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。每段对话仅读一遍。 1. What does the woman want to do A. Return her shoes. B. Repair her shoes. C. Buy new shoes. 2. Where does the conversation take place A. At an airport. B. At a hotel. C. At a travel agency. 3. Who will probably decide the place to go A. The man. B. The woman. C. Harry. 4. What makes the man so happy A. Tom will play football with him. B. Tom will tell him the best news. C. Tom’s father will play football with him. 5. What does the woman like to watch in her spare time A. Advertisements. B. TV plays. C. Art shows. 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,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至8题。 6. Why is the woman so excited A. Her grandpa will cook for them. B. Her grandpa will come here. C. Her grandpa will give her a valuable present. 7. How does the grandpa come here A. By plane. B. By bus. C. By train.
山东省青岛开发区一中2013届高三12月月考试题物理试题 考试时间：90分钟，满分100分 第Ⅰ卷 (选择题 共48分) 一、选择题（本题共12小题，每小题4分，共48分.在每题给出的四个选项中，有的小题只 有一个选项正确，有的小题有多个选项正确.全部选对的得4分，选不全的得2分，有选错或不答的得0分） 1、如图所示，电源内阻不能忽略，开关闭合后，灯泡A 、B 均发光。现将滑动触头向右移动，下列说法正确的是 （A ）A 灯变亮、B 灯变暗 （B ）A 灯变暗、B 灯变亮 （C ）电源路端电压一定增大 （D ）电源的输出功率一定增大 2．某物体的位移图像如图所示，则下列叙述正确 （ ） A ．物体运动的轨迹是抛物线 B ．物体一直向正方向运动 C ．8s 内物体运动所能达到的最大位移为80m D ．在t=4s 时刻，物体的瞬时速度为零 3．如下图所示，一滑块从弧形轨道上的A 点，由静止开始下滑。由于轨道不光滑，它仅能滑到B 点，而返回后又仅能滑到C 点，若AB 两点高度差为1h ，BC 两点间高度差为2h ，必有 ( )A ．21h h = B ．21h h < C ．21h h > D ．条件不足，无法判断 4．如图所示，不计重力的正电粒子以一定的水平初速度射入平行金属板间竖直的匀强电场中，则下列说法正确的是（以下各情况，粒子均能穿过电场） （A ）增大初速度大小，其他条件不变，粒子穿过电场的偏转位移变大 （B ）滑动触头向上移动，其他条件不变，粒子穿过电场的偏转位移变 大 （C ）适当增大两板间距离，其他条件不变，粒子穿过电场的偏转位移 变大 （D ）适当增大两板间距离，其他条件不变，粒子穿过电场的时间变大 5． 2007年11月5日,“嫦娥一号”探月卫星沿地月转移轨道到达月球，在距月球表面200km 的P 点进行第一次“刹车制动”后被月球捕获,进入椭圆轨道Ⅰ绕月飞行, 如图所示。之后，卫星在P 点又经过两次“刹车制动”，最终在 距月球表面200km 的圆形轨道Ⅲ上绕月球做匀速圆周运动． 则下面说法正确的是 （ ）
2021-2022年高一英语11月月考试题(III) 1.本试卷分第Ⅰ卷（选择题）和第Ⅱ卷（非选择题）两部分。试卷满分为150分，考试时间120分钟。 2.请将答案填写到答题卡上。 Ⅰ卷 (选择题共100分) 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，并标在答题卷的相应位置。听完每段对话后，你都有l0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 does the conversation probably take place? A. In a restaurant. B. In a hotel. C. In a store. 2. What did the woman think they would do? A. See an exhibition. B. Have a meeting. C. Attend a lecture. 3. What will the man probably do next? A. Go back to his work. B. Eat out for lunch. C. Pick up Jenny. 4. What’s the relationship between the two speakers? A. Hotel manager and tourist. B. Professor and student. C. Salesman and customer.
5. How much will the woman pay for one chair? A. $59. B. $62. C. $65. 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，并标在答题卷的相应位置。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秒钟的作答时问。每段对话或独白读两遍。 听第6段材料, 回答第6、7题。 6.What part-time job does the woman do? A. A teacher. B. A guide. C. A cleaner. 7. Why does the woman like the job? A. She can get a high pay. B. She can have more spare time. C. She can get some good work experience. 听第7段材料，回答第8、9题。 8. When will the man leave China? A. In one month. B. In two weeks. C. Next year. 9.Why can’t the man decide when to e to China again? A. His mother hasn’t recovered yet. B. He hasn’t found a job in China.
高一上学期12月月月考考试物理试题附答案解析 一、选择题 1．如图所示，风力发电机的叶片在风力推动下转动，带动发电机发电。图中M、N为同一个叶片上的两点，下列判断正确的是 A．M点的线速度小于N点的线速度 B．M点的角速度小于N点的角速度 C．M点的向心加速度大于N点的向心加速度 D．M点的周期大于N点的周期 2．关于超重和失重，下列说法正确的是 A．物体处于超重时，物体一定在上升 B．物体处于失重状态时，物体可能在上升 C．物体处于完全失重时，他的重力为零 D．物体在完全失重时，它所受到的合外力为零 3．如图所示，质量为8 kg的物体A静止在竖直的轻弹簧上面。质量为2 kg的物体B用细线悬挂起来，A、B紧挨在一起但A、B之间无压力。某时刻将细线剪断，则细线剪断瞬间，B对A的压力大小为(取g＝10 m/s2)( ) A．100 N B．20 N C．16 N D．0 N 4．关于力学单位制下列说法正确的是（） A．kg、m/s、N是导出单位 B．kg、s、J是基本单位 C．只有在国际单位制中，牛顿第二定律的表达式才是F=ma D．在国际单位制中，质量的基本单位是kg，也可以是g 5．下列关于弹力的说法中正确的是（） A．直接接触的两个物体间必然有弹力存在 B．不接触的物体间也可能存在弹力 C．只要物体发生形变就一定有弹力 D．直接接触且发生弹性形变的物体间才产生弹力 6．一台电视机静止放在水平桌面上，下列说法正确的是（）
A．它对桌面的压力和桌面对它的支持力是一对平衡力 B．桌面对它的支持力与它所受重力是一对平衡力 C．它所受的重力和桌面对它的支持力是一对作用力与反作用力 D．它对桌面的压力就是它所受的重力，这两个力是同一种性质的力 7．某中学举行秋学期运动会，在100m竞赛中，测得某一运动员5s瞬时速度为10.4m/s，10s末到达终点的瞬时速度为10.2m/s。则他在此竞赛中的平均速度为（） A．10.2m/s B．10m/s C．10.3m/s D．10.4m/s 8．如图所示，物块a静止在水平地面上，物块b叠放在物体a上。现对物体a施加一个水平向左的恒定拉力F，a、b仍然都处于静止状态。以下说法正确的是 A．a受b向右的摩擦力 B．b受a向左的摩擦力 C．a、b接触面间的动摩擦因数一定为零 D．地面对a的摩擦力大小等于F 9．如图是某物体沿直线运动的位移—时间图象，则它的运动情况应该是（） A．先加速，后减速 B．先静止，然后沿斜面加速下滑 C．先静止，然后向x轴负方向运动 D．先沿x轴负方向加速运动，然后静止 10．一汽车以36km/h的速度在水平路面上匀速行驶，驾驶员发现正前方斑马线上有行人后立即刹车使汽车做匀减速运动。已知该驾驶员的反应时间为0.4s，汽车行驶过程中的v －t图象如图所示，则汽车刹车的加速度大小为（） A．15m/2s B．18m/2s C．5m/2s D．4.2m/2s 11．在水平传送带上的物体P，随传送带一起沿水平方向匀速运动，并且P与传送带保证相对静止，如图所示，此时传送带对物体P的摩擦力（） A．方向可能向左B．方向一定向左C．方向一定向右D．一定为零