内蒙古包头市第六中学2020-2021学年高一上学期期中考试英语试卷 Word版含答案
包头六中2020-2021学年第一学期期中考试高一年级英语试卷第І卷第一部分：听力（共两节，满分30分）第一节（共5题；每小题1.5分，满分7.5分）1.What does John Smith do?A.A mailman.B. A letter writer.C. A milkman.2.Where does the conversation probably take place?A.In the cinema.B. In the school.C. In the library.3.What is Richard famous for?A.Editing.B. Reporting.C. Writing.4.Who will carry the suitcase?A.The man.B. The woman.C. Someone else.5.What do we know about the woman?A.She should buy the ticket now.B.She has missed the train.C.She can catch the train in time.第二节（共15题；每小题1.5分，满分22.5分）听第6段材料，回答第6、7题。
6.What is the weather like in winter in the woman’s place?A. Cold and wet.B. Cold and dry .C. Warm and hot.7.Why does the woman think the man is lucky?A. He can experience different kinds of weather.B. He can enjoy winter sports in his hometown.C. The winter is not cold at all in his hometown.听第7段材料，回答第8至10题。
8.What are the speakers mainly talking about?A. Stopping smoking.B. Passing a law banning cigarettes.C. Saving money.9.Who would stop smoking?A. The man.B. The woman.C. Neither of them10.Why is giving up smoking difficult for the man?A. He is likely to gain weight.B. He would chew his finger.C. He would play his nails.听第8段材料，回答第11至13题。
11.Why is the man going to the States?A. To attend a conference.B. To visit places of interest.C. To visit his friends .12.When does the man want to leave for America?A. In early January.B. In mid-January.C. In early February.13.What is probably the woman’s job?A. A scientist.B. A reporter.C. An embassy staff.听第9段材料，回答第14至16题。
14.What does the man invite the woman to do on Tuesday night?A. See a show.B. Eat out in a restaurant.C. Watch a basketball game.15.What is the woman going to do on Wednesday evening?A. Do some shopping.B. Help her roommate clean the apartment.C. Finish her term paper.16.Whose birthday is on Friday?A. The woman’s brother’s.B. The man’s mother’s.C. The woman’s father’s.听第10段材料，回答第17至20题。
17.When did Jack order the CDs?A. On March 13th.B. On March 14th.C. On March16th.18.How soon did Jack receive the CDs?A. The next day.B. Three days later.C. Seven days later.19.Where did he get the CDs?A. In a CD shop.B. In a supermarket.C. On the net.20.What does he complain about?A. The quality of the CDsB. The service the company offeredC. The price of the CDs.第二部分：阅读理解（共两节，满分40分）第一节（共15题；每小题2分，满分30分）ALove to write? Want to see your work published and win some cash along the way? Then read on. The national Spark a Story writing contest is calling in all young storytellers!Who can participate?The contest is open to students in grades 9, 10, 11 or 12, or those who are being home-schooled in the United States.Deadline and requirementsYou’re able to send your short story up to October 7th. It will be judged on creativity, originality and overall quality of writing. Your story must be original works and should be no longer than 5000 words. There is no minimum length requirements.How can I send my short story?There are three easy ways to send your short story:*Online at http: // learn. /hmhsparkamind*Send your short story as a PDF or Microsoft word document toSparka@*Send your short story via U.S. Mail to:Houghton Mifflin Harcourt Publishing Company222 Berkeley StreetBoston, MA 02116What will I win?The best stories will be published next year. Winners will receive a free copy of the book and cash price of $100.21．The passage is written for ________ to read.A．Parents B．students C．teachers D．foreigners22．Which of the following children can take part in the contest?A．Catherine, grade 11, from Washington D．CB．Maria, grade 7, from New York.C．Justin, grade 9, from London.D．Bastian, homeschooled from Paris.23．Which of the following ways is NOT a correct way to send your story? A．Sending it online. B．Sending it by email.C．Sending it by fax. D．Sending it by US mail.BSome people think that as more and more people have televisions in their homes, fewer and fewer people will buy books and newspapers Why read an article in the newspaper, when the TV news can bring you the information in a few minutes and with pictures? Why read the life story of a famous man, when short television program can tell you all that you want to know?Television has not killed reading, however. Today, newspapers sell in very largenumbers. And books of every kind are sold more than ever before. Books are still a cheap way to get information and enjoyment. Although some books with hard covers are expensive, many books are printed today as paperbooks (平装本), which are quite cheap. A paperback collection of short stories, for example, is always cheaper than an evening at the cinema or the theater, and you can keep a book forever and read it many times.Books are a wonderful provider of knowledge and pleasure and some types of books should be in every home. Every home should have a good dictionary. A good encyclopedia (百科全书), though expensive, is useful, too because you can find information on any subject. Besides, you can have such books as history books, science textbook, cookbooks, and collections of stories and poems. Then from time to time you can take a book of poems off your shelves and read the thoughts and feelings of your favorite poets.24．It can be inferred from the passage that ________.A．reading is a cheap way of learning and having funB．TV programs are a main provider of knowledgeC．cinemas are the best choice in getting informationD．newspapers are an expensive way to enjoy oneself25．What does the sentences “Television has not killed reading, however” underlined in the second paragraph suggest?A．People only need reading, though.B．Reading is more fun than television.C．Watching television doesn’t help reading.D．Reading is still necessary today.26．Which of the following is TRUE according to the passage?A．Fewer and fewer people will buy books.B．Books with hard covers sell better than paperbooks.C．A good dictionary should be kept in every home.D．More people like TV programs about famous men.27．What is the author’s attitude towards books?A．indifferent B．supportive C．objective D．doubtfulCKatie always wanted to be a performer．She, the youngest of the three kids from Cleveland, was crazy about musicals and Disney movies from an early age and would often watch them singing with her mom, Karen．However, Katie's happy childhood took a-turn when her mother was diagnosed(诊断)with cancer．When the doctor informed the family that Karen's disease was terminal, they decided to make a trip to Disney World．The family spared no expense for their once-in-a-lifetime vacation and stayed at Disney's hotel for eight nights．They spent their days in the parks, seeing the sights, greeting characters, all the while pushing Karen in her wheelchair and watching her face light up with joy．They all shared in the merriment of experiencing the parks for the first time with Karen．The trip to Disney World at the height of Karen's battle with cancer allowed them to escape into a world of magic and laughter．This was the day Katie decided she wanted to work for Disney．Sadly, Karen lost the battle and died later, but the whole family remembered her every day and often thought of that Disney vacation．Katie went on to go after her dream．After she received her degree in musical theater, she struggled for years, working as a waitress and trying to be a performer．Her hard work finally paid off when she was hired to work for Disney．As a Disney performer, Katie is aware that many other families visit the parks and have similar stories to her own．She encourages everyone, especially children, who may be experiencing a hard time．“Every moment is meant for you, even the painful ones．” she says．“It's just like in your favorite Disney movie: There is always some k ind of conflict or hardship or pressure．Remember to celebrate those moments, too, because they are taking you to whatever your version of a happy ending is．”28．Why did Katie's family decide to go to Disney World?A．Katie always loved Disney movies．B．Katie had a happy childhood．C．Katie dreamed of being a performer．D．Katie's mother got seriously ill．29．What made Katie decide to work for Disney?A．The dream that she wanted to live a life full of magic．B．The great joy the Disney vacation brought to her family．C．The memory that she watched Disney movies as a kid．D．The great courage her mother showed in fighting cancer．30．Which of the following words best describe Katie?A．Tough and determined．B．Kind and curious．C．Patient and helpful．D．Strict and independent．31．What message does Katie convey in the last paragraph?A．Many drops make a shower．B．Experience must be bought．C．Sweet is pleasure after pain．D．Good medicine tastes bitter．DChicago already has bike sharing and car sharing. Could electric scooter(滑板车)sharing be the next big thing?With electric scooter sharing already appearing in many cities and the biggest operator eyeing the Chicago market, Moreno is trying to make the rules of the road beforeelectric scooters arrive.” It’s y et another means of transportation and we need to welcome them and make the regulations in advance if we are really serious about reducing traffic and reducing air pollution,” said Moreno.Moreno said that in other cities, electric scooter riders have ignored helmet rules and traffic laws. They have parked illegally and ridden scooters on sidewalks. Those are the problems he’s trying to avoid. The rules would require related companies to first get an “Electric Scooter Share License”. To get the license, com panies would need to provide a minimum of 100 scooters operating at a maximum（最高的）speed of 20 miles per hour.Bird is the nation’s leading electric vehicle sharing company. It has raised $100 million and begun operations in many cities. Bird ‘s spokesman K enneth Baer said his company welcomes the Chicago regulations, which can help to avoid the start-up problems it has met with in other cities.“We follow the laws on the books. It happens to be that in a good number of cities the law is silent or not clear how to treat this new technology. And that causes some troubles,”said Baer. “If the rules of the road are officially made in advance then it is very clear. I think the Chicago regulations really would give the citizens a great way to get around the city.”32．What can we learn from Moreno’s words?A．The various means of transportation in Chicago.B．The popularity of electric scooter sharing.C．The future of Chicago’s traffic.D．The reasons behind making the rules in advance.33．What should the relevant(相关的) co mpanies do to get the “Electric Scooter Share License”?A．They should limit the speed of their scooters.B．They should provide enough parking spacesC．They should raise at least $ 100 million.D．They should provide helmets for renters.34．Why are there some problems caused in some cities?A．The scooter-sharing laws are too strict.B．These cities lack clear rules to deal with scooter sharingC．People take no notice of traffic regulationsD．Electric scooter sharing has many disadvantages35．What does the underlined word mean?A．habits B．hobbies C．rules D．examples第二节（共5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。
内蒙古包头市回民中学2020-2021学年高二上学期期中考试英语试卷Word版含答案
包头回中2021-2021学年高二年级期中考试英语试卷第一局部阅读理解(共两节，总分值40分)第一节(共15小题；每题2分，总分值30分)阅读以下短文，从每题所给的四个选项(A﹑B﹑C和D)中，选出最正确选项。
A．Teaching materials for learning Chinese are provided here. There are sites where you may find interesting instructions suitable for you. Here are some sites to begin your surfing.You may start with these pages from this website — just to get a little taste of it without workingtoo hard.● A Is ForLoveFlash cards for learning a few Chinese words●Listening to the sound ofChinesePlay a few words of Chinese on your computer.● A few Chinese wordsEach word is enlarged for easy study.If you are studying Chinese, these tools can help.●ClavisSinicaExcellent program by Professor David Porter. It displays a whole document in Chinese [GB] or [BIG5], and gives individual word’s definition, pronunciation as well as much more information when you click on that word. If you are studying Chinese, this is a very useful tool.●Chinese Character VisualDictionaryIf you like to know more, go to the following sites on the Internet.●The ChineseOutpostPronunciation, Character and Grammer By Mark Andrew Baker. The best. A must-visit site.●Learn Cantonese / Mandarin Online●Internet Based Chinese Teaching andLearning●Rainland Kids discover Chinese — Site is inGermanyIf you want to have a better understanding of China, go to this one.●Wanfang DataAs an affiliate (分支) of Chinese Ministry of Science & Technology, Wanfang Data has been the leading information provider in China since 1950s. With a wide range of database resources and value-added services, Wanfang Data has become a gateway to understanding Chinese culture, medicine, business, science, etc.1.The underlined lines areprobablysome.A.booksB. websitesC. tips forlearningChineseD. dictionaries for learningChinese2.If you want to know each Chinese character’s definition, pronunciation andmuch more information, you’dbettersurf.A. Zhongwen siteB. A Is For LoveC.ClavisSinicaD. A few Chinesewords3.The underlined word “gateway〞in the last paragraph probablyrefersto.A.an opening in a wall that can be closed by agateB.a place through which you can go to anotherplaceC.the space when a door isopenD.a way of getting or achievingsomethingB.Since the novel corona-virus (新冠病毒) outbreak, many people have been forced to stay at home for long periods of time to protect themselves from the virus. This has given people more free time to learn new skills and find different ways to entertain themselves.Some of these activities include things like singing, learning to cook and ordering fresh food online. All of these things can be done in the palm of your hand with mobile apps.Before, young people would go outside and meet friends at karaoke bars (卡拉OK 酒吧). Now, friends can meet and sing on the mobile karaoke app Changba. “The Changba app not only gives me the chance to share my songs with friends, but also lets me sing whatever I like at home.〞 said an app user.Some people have also taken up cooking as a new hobby to pass the time. You don’tneed to attend culinary (烹饪的) school, thanks to apps like Xiachufang and Ecook, which make it easier for those who want to learn how to cook. These apps provide a platform for users to look up different recipes (菜谱) and to share their own recipes with others. “Using this app, I have learned many new and healthy dishes which help me eat better.〞 an app user commented o n the app’s website.To help people avoid crowded places like grocery stores, apps that deliver (递送) goods right to your door have also become very popular. “It is obvious that the epidemic (疫情) has attracted new groups of consumers (消费者), such as elderly people, who originally didn’t belong to our target user group.〞 Zhang Yi, an analyst from the market research company, said.Indeed, during this special time, these apps have opened up a whole new world of opportunities for people of all ages and backgrounds.4．According to the passage, what can people do during the period of novel corona-virus outbreak?A．Singing at karaoke bars.B．Learning to cook at home by apps.C．Buying food in crowded markets.D．Meeting friends at restaurants.5．What does the author tell us about the Changba app in Paragraph 3?A．It is more user-friendly than karaoke bars.B．It helps users to discover their singing talent.C．It provides chances for users to share songs with friends.D．It allows users to improve their singing skills fast.6．What does the article tell us about food-delivery apps?A．They have lost many young customers.B．They have opened culinary classes for their users.C．They have more elderly users than before.D．They have caused many grocery stores to close.7．Which of the following shows the structure of the article?A．①--②--③④⑤--⑥B．①--②③④⑤⑥C．①--②③④⑤--⑥D．①②③④⑤--⑥C.It is reported that a record-breaking high-speed rail will connect Inner Mongolia inthe north to Hainan in the south. According to the Shaanxi Development and Reform Commission，the proposed line will operate at a speed of 350 kilometers per hour〔217 mph〕.Beginning in Inner Mongolia's Baotou city and running through southern Shaanxi，Hubei，Hunan，Guangxi and Guangdong，its final stop would be in Haikou city on Hainan Island，China's southernmost province.Though the exact length of the proposed route has not been released，it will likely become the world's longest high-speed rail line as the journey by road between Baotou and Haikou is approximately 3,000 kilometers(1,864 miles)long. Currently, the world's longest high-speed rail line is almost 2,300 kilometers long 〔1,429 miles〕,running from Beijing to Guangzhou.The proposed rail is part of China's aim to create another “Silk Road of the 21st Century〞 and improve the country's transportation network while driving land development and urbanization〔城市化〕in some provincial areas.Many of the provinces through which the high-speed trains will travel are near major bodies of water，such as the Yellow River in Inner Mongolia and Shaanxi province, the Yangtzi River in Hubei and the South China Sea，where the line would end. It will also take passengers to popular tourist attractions including Zhangjiajie, Xi'an, Guilin and minority areas in western Hunan and Hubei."The country is now shifting its focus and investing in the western regions and economically underdeveloped areas, making up for China's long debt to these areas,“ Tan yuzhi, professor of the School of Economics and Management at Hubei University for Nationalities，told local media. " The project will significantly narrow regional disparities〔差异〕and solve minority issues.〞However，Deng Hongbing，director of China University of Geosciences' Center for Regional Economic and Investment Center，said that if the north-to-south railway is to go ahead，there needs to be a sound ecological program in place to ensure the protection of these underdeveloped and ecologically sensitive areas.8．What is the passage mainly talking about?A．China has decided to invest in the western areas.B．Another high-speed train line is being planned.C．The train will speed up to 350 kilometers per hour.D．China has produced the best high-speed train line.9．How many provinces will the proposed line cross?A．9B．8C．7D．610．Once the high-speed rain line is built，______.A．it will be the most convenient high-speed rail line in ChinaB．it will benefit the underdeveloped areas a lot in the westC．it will transport goods faster from north to southD．it will do good to the environment alongside the line11．What is Tan Yuzhi's attitude towards the proposed project? A．SupportiveB．Doubtful.C．Puzzled.D．Negative.D.Garbage sorting has become a hot issue around China,especially after Shanghai began carrying out a regulationon July 1.Beijing has thus been expected to follow suit. The current regulation gives garbage sorting responsibilities to government departments, property management groups and other organizations. It also gives rules for companies, outlining how they’re responsible fo r waste collection, transportation and treatment only individuals are not subject to responsibilities.The long-awaited revision will soon change the situation. “Taking out the trash without sorting it properly will be against law,〞said Sun Xinjun, director of the Beijing Commission of Urban Management. In Shanghai, violators are now fined up to 200 yuan for trash-sorting violations〔违背〕. The maximum fine in Beijing will not be less than that, he said.The Beijing city government first set out to promote garbage sorting in 2021. Authorities have since called on citizens to sort their household waste into four types---recyclable waste, kitchen trash, dangerouswasteandothers --- andleaveitinacorresponding〔相应的〕dustbinortrashcan. Blue-colored dustbinsindicate items within are recyclable, green represents kitchen trash, red corresponds to dangerous materials and grey to otherwaste.To promote the awareness of garbage sorting and expand the base of participants, authorities have employed workers to help residents on the spot. With intelligent devices, those who throw in recyclable waste at given sites will be rewarded with bonus points, which can be used to buy daily goods. At some communities, there are no color-coded dustbins. Instead, a scheduled garbage collection service is offered to help improve the environment. In other communities, workers offer a door-to-door service to collect recyclables or kitchenwaste.Beijing Environmental Sanitation Engineering Group has been promoting new garbage sorting facilities such as recycling cabinets and smart kitchen waste trash cans since 2021, Xinhua News Agency reported.12.Which of the following shouldn’t be thrown into a bluedustbin?A.Cokecans.B. Usedbooks.C.Thrown-awaybatteries.D. Abandoned iron pots.13.It’s known from thepassagethat.A.Shanghai carried out garbage sorting at the same time asBeijingB.green color indicates recyclable waste like desertedclothesC.citizens are not responsible for garbage sorting in BeijingnowD.people sorting recyclable waste will be rewarded throughoutBeijing14.What is the best title for thetext?A.Present Garbage Collection InBeijing.B.New Garbage Sorting Regulation inBeijing.C.An Example in Garbage Sorting InShanghai.D.Action to Be Taken To Sort Garbage inShanghai.15.Where can you read thearticle?A.Afashion magazine.B. Asciencebook.B.Agovernmentreport. D. Anewspaper.第二节(共5小题；每题2分，总分值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正确选项。
内蒙古包头市第九中学2013-2014学年高一下学期期中考试英语试题-Word版含答案
包九中2021-2022学年度其次学期第一学段高一班级英语期中试题总分150分，考试时间120分钟第I卷第一部分：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秒钟的时间来回答有关小题和阅读下一小题。
每段对话你将听一遍。
1.What are they going to do next?A.Watch a movie.B. Have a drink..C. Do some shopping.2. Where is the girl’s father now?A. In a hospital.B. In his office.C. At home.3. What does the boy think of the lecture?A. Surprising.B. Exciting.C. Boring.4. What will the boy do before going to the dance party?A. Have a piano lesson.B. Do his homework.C. Visit the girl.5. What’s the weather like today?A. Cloudy.B. Rainy.C. Sunny.其次节（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，你将有时间阅读各个小题，每小题5秒钟；听完后，每小题将给出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 many countries will the man visit?A. Two.B. There.C. Four.7. Who will go on a trip with the man?A. His son.B. His parents.C. His wife.听第7段材料，回答8至10题。
内蒙古包头市第一中学2020-2021学年高二第一学期期中考试英语试卷含答案
包头一中2020-2021学年度第一学期期中考试高二年级英语试题第I卷第一部分：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 does the conversation take place?A.In a bank.B.In a hospital.C.In a restaurant.2.What will the man do this afternoon?A.Go shopping.B.Go to the zoo.C.Do a project.3.How much more does Ben need to save for the mobile?A.200dollars.B.300dollars.C.500dollars.4.What are the speakers talking about?A.A Nobel Prize winner.B.A prize.C.Chemistry.5.How does the woman feel about losing the job last month?A.Sad.B.Lucky.C.Shocked.第二节（共15小题，每小题1.5分，满分22.5分）听下面5段对话或独白，每段对话或独白后有几个小题，从题中所给的A.B.C 三个选项中选出最佳选项，并标在试卷的相应位置。
听每段对话或独白前，你将有时间阅读各个小题，每小题5秒钟，听完后，各小题将给出5秒钟的作答时间。
每段对话或独白读两遍。
听第6段材料，回答第6,7题。
6.How long will the man have to walk to the bank?A.About15minutes.B.About20minutes.C.About25minutes.7.Where is the bank?A.At a crossing.B.Behind a hotel.C.Next to a school.听第7段材料，回答第8-10题。
内蒙古包头市第一中学2020-2021学年高二上学期期中考试英语试题 Word版含解析
包头一中2020-2021学年度第一学期期中考试高二年级英语试题第I卷第一部分：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 does the conversation take place?A. In a bank.B. In a hospital.C. In a restaurant.2. What will the man do this afternoon?A. Go shopping.B. Go to the zoo.C. Do a project.3. How much more does Ben need to save for the mobile?A. 200 dollars.B. 300 dollars.C. 500 dollars.4. What are the speakers talking about?A. A Nobel Prize winner.B. A prize.C. Chemistry.5. How does the woman feel about losing the job last month?A. Sad.B. Lucky.C. Shocked.第二节（共15小题，每小题1.5分，满分22.5分）听下面5段对话或独白，每段对话或独白后有几个小题，从题中所给的A. B. C三个选项中选出最佳选项，并标在试卷的相应位置。
听每段对话或独白前，你将有时间阅读各个小题，每小题5秒钟，听完后，各小题将给出5秒钟的作答时间。
每段对话或独白读两遍。
听第6段材料，回答第6,7题。
6. How long will the man have to walk to the bank?A. About 15 minutes.B. About 20 minutes.C. About 25 minutes.7. Where is the bank?A. At a crossing.B. Behind a hotel.C. Next to a school.听第7段材料，回答第8-10题。
内蒙古包头市第六中学2020-2021学年高一上学期期中考试物理试卷 PDF版含答案
19. （6 分）一列火车以 2m/s 的初速度，0.5m/s2 的加速度做匀加速直线运动，求： 21. （8 分）一辆值勤的警车停在路边，当警员发现从他旁边以 v=8m/s 的速度匀速行驶的货车
（1）火车在第 3s 末的速度是多少？
有违章行为时，决定前去追赶。经 2.5s 警车发动起来，以 a=2m/s2 做匀加速运动。试求：
D. 500m/s2 ，方向水平向右 4. 一辆汽车做匀加速直线运动，初速度为 4 m/s，经过 4s 速度达到 12 m/s，下列
说法中不正确的是
A. 汽车的加速度为 2m/s2 C. 汽车的平均速度为 6 m/s
B. 汽车每秒速度的变化量为 2 m/s D. 汽车的位移为 32m
A. 甲做匀变速直线运动 B. 甲在 0 ~ 3s 的时间内通过的总位移为 2m C. 乙在 0 ~ 3s 的时间内通过的总位移为 0 D. 乙在 0 ~ 6s 的时间内运动方向一直不变，它通过的总位移为 4m
错误的是
A. 位置“1”是小球释放的初始位置
B. 小球做匀加速直线运动 d
C. 小球下落的加速度为 T2 D.小球在位置“3”的速度为 7d
2T
A.0.6 m/s2
B.0.36 m/s2
C.0.7 m/s2
D.0.43 m/s2
7. 物体甲的 x-t 图象和物体乙的 v-t 图象分别如图 1、图 2 所示，则这两个物体的
m.
（1）该同学实验过程中纸带的______（填“左”或“右”）端与小车相连；
（2）下列操作中正确的有______（填选项前代号）
A.在释放小车前，小车要靠近打点计时器
B.打点计时器应放在长木板的有滑轮一端
C.应先接通电源，后释放小车