英语---江西省南昌二中、临川一中2017届高三下学期期中联考

江西省南昌市2017届高三英语第四次联考试题时间：120分钟满分：150分第Ⅰ卷(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)请听下面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 the play to begin according to the schedule?A.At9:10．B.At9:30．C.At9:50．2.How will the speakers probably go?A.On foot．B.By bus．C.By taxi．3.What will the man do this afternoon?A.Give a report．B.Have a discussion．C.Take a business trip．4.What does the woman think of the man’s opinion?A.She considers it a fact．B.She disagrees with him．C.She thinks it interesting．5.What are the speakers mainly talking about?A.Their new boss．B.Their hobbies．C.Their work．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。

听每段对话或独白后，你将有时间阅读各个小题，每小题5秒钟；听完后，各小题将给出5秒钟的作答时间。

每段对话或独白读两遍。

听第6段材料，回答第6、7题。

6.What do we know about the man?A.He lost his bags．B.He is a non-smoker．C.He is quite careless．7.What will the woman do for the man?A.Clean the floor．B.Collect his bags．C.Find another room．听第7段材料，回答第8、9题。

★启用前绝密（3月19日）分宜中学玉山一中临川一中2017年江西省南城一中南康中学高安中学高三联合考试英语试卷彭泽一中泰和中学樟树中学命题：彭泽一中、玉山一中、临川一中第一节（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。

AHere at the Allianz Arena, we receive dozens of questions and requests for information every day. In response to the enormous public interest, we’ve updated our Frequently Asked Questions(FAQ) section. You will also find comprehensive information about the Allianz Arena in the Facts & Figures section of the site, and souvenir and marketing information in Shop section.When is the Allianz Arena open?Arena Tours: 10:00-18:00 dailyArena bistro: 10:00-18:00 dailyArena shop: 10:00-18:00 dailyMatchdays: The stadium opens 2 hours before Bayern home games or TSV 1860 home games and the guided tours do not operate.How do I buy match tickets for the Allianz Arena?Please consult the Bayern Munich and TSV 1860 Munich home pages. FAQ section is not responsible for match ticket sales.Can I take a guided tour of the Allianz Arena?Tours lasting approximately 75 minutes for groups or individual visitors take place daily, and start with a film on the development of the Allianz Arena. After that there is a guided tour taking place in the changing rooms, the tunnel, the interior rooms, the press club, and the upper tier. Please refer to the Arena Tours section of this site, and address booking enquiries to besucher@.How many car, bus and coach parking spaces are available?The four four-storey car parks under the Esplanada provide parking for 9,800 cars (max. height 2,0meters). There are 350 bus and coach parking spaces, 240 to the north of the Arena and 110 to the south of the Esplanada.How do fans reach the stadium from the car parks and the underground station?All visitors reach the stadium itself from the car parks, the bus parking and via a short transition route from the Frottamaning underground station.21. In which section can we read this passage?A. FAQ section.B. Facts & Figures section.C. Shop section.D. Arena Tours section.22. How many bus and coach parking spaces do the four four-storyed car parks provide?A. 110B. 240C. 350D. 980023. Which of the following statements is true?A. Tourists can take the guided tour on weekdays.B. Visitors can buy tickets in this section.C. There are 700 bus and coach parking spaces.D. It is convenient for fans to reach the stadium.BThe story of Nine Lives follows Tom Brand (Kevin Spacey), a billionaire at the top of his game．Tom's workaholic lifestyle has disconnected him from his family, particularly his wife Lara (Jennifer Garner) and his daughter Rebecca (Malina Weissman)．It's coming up to Rebecca's 11th birthday and she wants a cat, but Tom hates cats and he’s without a gift and time is running out. So as he decides to buy a cat, his GPS directs him to a mystical pet store brimming with odd and exotic cats. The store’s eccentric owner, Felix Perkins (Christopher Walken), presents him with a majestic tomcat named Mr. Fuzzypants．But on his way to his daughter's party, Tom has a terrible accident and when he regains consciousness he discovers he is now trapped inside the body of the cat．Adopted by his own family, Tom begins to experience what life is truly like for the family pet, and as a cat, he begins to see his family and his life from a new and unexpected perspective．Meanwhile, his family adjusts to the life with an odd and stubborn cat, and his son David (Robbie Amell), steps up in ways Tom has never expected．If any hope exists of returning to his family as the husband and father they deserve, Tom will have to learn why he has been placed in this peculiar situation and the great lengths he must go to earn back his human existence．24.What often causes Tom to stay away from his family?A. His personality.B. His overwork.C. His feelings about his family.D. His job nature.25.The underlined word "brimming" in Paragraph 2 is closest in meaning to____?A. lackedB. putC. satD. filled26.How is Tom's life as a cat?A. He begins to experience a true life as a pet．B. He begins to experience a true life as a father．C. He takes his new life as a matter of course．D. He predicts everything that will happen in the future．27.We can conclude from the passage that______A. Tom should make every effort to earn back his human existence．B. Tom should understand his odd situation to earn back his human existence．C. Tom should master all kinds of knowledge to earn back his human existence．D. Tom should understand his odd situation and make efforts to earn back his human existence．CWhen suddenly the word lanshouxianggu began trending on Chinese social-networking sites, many internet users were left scratching their heads.Lanshouxianggu literally means blue thin chestnut mushroom but it made no sense to users. In case you are wondering what the whole fuss is about, a company in Shenzhen registered its name as blue thin chestnut mushroom, or lanshouxianggu,on Oct13. Just to make it more confusing, the company’s main business includes equipment manufacturing, trad e and engineering.It’s not the first time that internet memes（网络热词）have been registered as trademarks. On Aug 8, Chinese female swimmer Fu Yuanhui said “I’ve been using honghuangzhili” indicating she had used up all her strength. The word went viral. “Honghuangzhil i”, which meanspre-historical force, was registered as a trademark two days later.The reference to lanshouxianggu comes from a video clip that went viral where a young man in Nanning, complains to his girlfriend in Mandarin but with his strong local accent. In the video, he cries out lanshouxianggu repeatedly in local accent, which in fact means upset(lanshou)and wanting to cry(xianggu). His accent and lyrical tone gave the video a phenomenon of humor and swept social media immediately. People photoshopped（图像处理）his sad face on a blue small mushroom image.Some of China’s popular websites did discover the fact that blue mushrooms do exist in the nature and were not merely magic of photoshop. Meet Entoloma hochstetteri, or sky blue mushroom, a kind of blue fungus（真菌）whose stem’s diameter is just 5 millimeter. It was first discovered in New Zealand. The country even selected the image of the blue mushroom on its banknote with face value of NZ$50 to show the nature diversity in the country. In 2002, New Zealand post even released a stamp.And for foodies who want to eat it: no, it is not edible and most species of this kind are poisonous.Are you lanshouxianggu now?28.Which of the situation can be described by “Blue Mushroom”?A.Tom was beaten by his rival and felt very depressed.B.Mary had her phone stolen but thought nothing of it.C.Ginar failed to pass the exam but was determined to work harder.D.John won the first place and was excited to burst out crying.29.Where can you mostly find the picture of literal blue mushroom?A.On a note written by a New Zealander.B.On a newspaper in New Zealand.C.On a bank bill in New Zealand.D.On a notice put up by a New Zealander.30.What can we learn from the passage?A.The blue mushroom is so delicious that everyone wants to buy it.B.“Honghuangzhili”was registered by Fu Yuanhui.C.The blue mushroom doesn’t exist in the world.D.The young man from the original video draws great attention.31.What can be inferred from the passage?A.New Zealanders first know the real meaning of “lanshouxianggu”.B.“lanshouxianggu” was first popular through the Internet.C.After the match, Fu Yuanhui was tired out.D.All the trademarks are Internet memes.DImagine you’ve just arrived in a new place and don’t know anybody yet. Someone smiles at you. You smile back. Your heart leaps because you realize this person could be a potential new friend. Your imagination r uns wild, dreaming of all the fun times you’ll have together, chewing the fat over coffee, lunch and dinner.You become so excited that in the first few minutes of talking you tell him/her everything—what you had for breakfast, how nervous you’re in this n ew place, and how you felt when your favorite goldfish died.But then you suddenly realize you’ve gone too far and that there’s no going back. You’ve committed the biggest social crime in the books—you over-shared.Researchers have found over-sharing your personal information too quickly is a kiss of deathto new friendships. A recent article highlights that it’s possible to establish a close bond with someone in as little as 45 minutes but this is only possible when the connection is built gradually by each person sharing a little bit more of themselves in turn. This theory was tested in an agreement called “Fast Friends” created by Authur Anopn, a professor from New York. In it, two people were put in a room together with three sets of 12 questions. The questions must be taken in order, with each person taking turns to answer them.Questions in the first set were mild and only slightly personal, like “Would you like to be famous?” But questions in the next set were more personal, like “What’s your most terr ible memory?” The final set of questions was deeply personal, like “When did you last cry in front of another person?” As Anon told, “If you disclose too much too fast, you put someone off.” It’s important that a relationship is built on mutual benefit and for each person to be talking. A key sign you’re over-sharing is when you’re the only one talking.To be close to someone, it’s also necessary that you’re both willing to open up, but it’s important that each person gives the other space and time to do so. Giving away mutual information gradually is a good choice.32. To establish a close relationship with someone, you should __________.A. talk as much as possibleB. share everything with him/herC. be the only one talkingD. give him/her space and time33. The underlined part in Paragraph 1 most probably means ________.A. drinking tea or coffeeB. talking happily and relaxedlyC. eating the fat meatD. laughing happily34. According to the passage, which of the following questions is deeply personal?A. What is the weather like in your hometown?B. What is your dream in the senior high school?C. What do you think of our national football team?D. Do you remember the situation you felt stupid before your friends?35. Which can be the best title for the passage?A. Take Turns to Share Between New FriendsB. Share Everything With FriendsC. Be Talkative While Making New FriendsD. Be Friendly to a Potential New Friend第二节(共5小题; 每小题2分, 满分10 分)Success is so much more than just money or fame. Success is about being able to live a happy and fulfilling life that allows you to be true to who you really are. 36.______Have belief in yourselfIf you don’t believe in yourself, how do you expect other people to? 37.____ It also helps you to take a leap of faith when it comes to going after what it is that you truly desire.38._____If your intention is simply rooted in money and fame, chances are that you are never going to truly feel successful. 39.____ When your intention is to serve your purpose, make a change in the world and express your gifts and talents; you will feel true success and satisfaction no matter what the outcome is.Realize you are already successfulSuccess is all around you and flows through you. The more you can welcome that into your life, the more you will start to feel it. 40.____Once you realize you are already successful, nothing can stop you from doing what you cando.A. Know your aim.B. Overlook your purpose.C. For a truly successful life, your intention has to be aimed at you purpose, at your passions and at what is good to you.D. If you want to succeed, here are the three things you need to focus on.E. Being thankful for the subtlest achievements in life will also assist you to produce more and more success.F. The secret of success is perseverance and belief.G.When you trust yourself, it strengthens your creativity, your ambitions and your motivation to do things.第三部分语言知识运用( 共两节，满分45分)第一节完形填空( 共20小题，每小题1.5分，满分30分)阅读下面短文，从短文后各题所给的选项四个选项(A、B、C、和D)中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。

高考英语模拟试卷题号I总分得分一、阅读理解（本大题共 3 小题，共 6.0 分）AFormal Afternoon Teas A pot of tea ， a plate of finger sandwiches and aselection of pastries and scones： In America ， this wonderful way to wileaway the afternoon is commonly ，though mistakenly ， known as "high tea ． " In Britain ， where it originated ，"high tea" is simply an old-fashioned name for the evening meal ； it's alsocalled "meal tea ． " The light ，elegant， scone-centric meal served at fancyhotels is called "low tea" or "afternoontea"． Whatever you call it ， here are four places to get afternoon tea on LongIsland． Prices are per person．Chat Noir230 Merrick Rd ．， Rockville Centre516-208-8521 ， chatnoirtea．comOwner Emma Tso is a talented pastry chef， and her afternoon tea（﹩22）includes sandwiches，miniature pastries ， warm scones， cream and jam and a pot of tea． Open 7 days aweek ． Reservations required．Robinson's Tea Room97-E Main St ．， Stony Brook631-751-1232Robinson's service afternoon tea Tuesday to Sunday．﹩26 buys unlimited tea， about 10 finger sandwiches， fresh scones， cream and jam and desserts． Reservations required．The Secret Garden Tea Cafe& Gift Shoppe225 Main St ．， Port Jefferson631-476-8327 ， thesecretgardentearoom． comThe Street Garden's menu has more modest options， but the full afternoon tea ，﹩，includes scones， fresh fruit ， tea sandwiches， mini desserts and a pot oftea． Open Tuesday to Sunday．The Hidden Oak CafeBayard Cutting Arboretum ， Montauk Highway ，Great River 631-277-3895 ，bayardcuttingarboretum ． orgThe cafe is open Tuesday to Sunday ． Afternoon tea （﹩） includes tea sandwiches，desserts and pastries， scones with cream and jam and a pot oftea． Reservations required 24 hours in advance．1.What do we know about British afternoon tea ？ ______A.It's known as "meal tea" ．B.It's centered on desserts．C.It's served at fancy hotels ．D.It's originated from America ．2.Which number should you call to reserve for a Monday afternoon tea ？ ______第1页，共 3页A. 516-208-8521B. 631-751-1232 D. 631-277-3895 3. Where can you get afternoon tea with fresh fruit ？______A. At Chat NoirB. At Robinson's Tea RoomC. At the Hidden Oak CafeD. At the Secret Garden Tea Cafe& Gift Shoppe 第2页，共 3页C. 631-476-8327答案和分析1.【答案】【小题 1】 C【小题2】A【小题3】D【分析】 21． C．细节理解题．依据第一段．"The light ， elegant，scone-centric meal served at fancy hotels is called"low tea"or"afternoon tea可知英国下午茶曾在豪华酒店被供给；应选C．22． A．细节理解题．依据第二部分Open 7 days a week． Reservations required 可知你要打电话预约礼拜一下午茶用516-208-8521 ；应选 A．23． D．细节理解题．依据第三部分The Street Garden's menu has more modest options，but the full afternoon tea ，﹩，includesscones， freshfruit ， teasandwiches，minidessertsandapotoftea 可知你在奥密花园茶餐厅礼品专柜可以买到下午茶与新鲜水果；应选 D ．本文属于说明文阅读，作者经过这篇文章主要向我们描述了正式的下午茶，以及四个可以喝下午茶的地方的一些信息．观察学生的细节理解和推理判断能力，做细节理解题时必定要找到文章中的原句，和题干进行比较，再做出正确的选择．在做推理判断题不要以个人的主观想象取代文章的事实，要依据文章事实进行切合逻辑的推理判断．第3页，共 3页。

江西省临川一中2017届高三年级第二次九校联考英语第一部分听力（共两节，满分30分）做题时，先将答案标在试卷上，录音内容结束后，你将有两分钟的时间，将试卷上的答案转涂到答题卡上。

第一节（共5小题，每小题1.5分，满分7.5分）听下面5段对话。

每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳选项，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 will the speakers do next probably ?A. Buy new tickets.B. Go to another office.C. Wait a few minutes.2. What does the man do ?A. He’s a chef.B. He’s a businessman.C. He’s a waiter.3. What probably happened last year ?A. The man had difficulty catching fish.B. The man caught too many fish.C. The man forgot to go fishing.4. How does the man probably feel ?A. Nervous.B. Relieved.C. foolish.5. Where are the speakers ?A. In a car.B. At a gas station.C. At a train station.第二节（共15小题，每小题1.5分，满分22.5分）听下面5段对话或独白。

每段对话或独白后有几个小题，从题中所给的A、B、C 三个选项中选出最佳选项，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。

江西省南昌市2017届高三英语下学期期中试题考试用时：120分全卷满分：150分第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. What happened to the man?A. He got a parking ticket.B. He lost his ticket.C. He got a permit to park in the red zone.2. What is the man doing now?A. Drinking a cup of tea.B. Washing clothes.C. Going to the bank.3. Where was the computer used last week?A. In a lab.B. In a theater.C. In a classroom.4. What day is it today?A. Friday.B. Wednesday.C. Tuesday.5. Why does Mary call the man?A. To cancel an appointment.B. To confirm an appointment.C. To reschedule an appointment.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。

听第6段材料，回答第6、7题。

2016届高三年级四月份联考（二）英语试卷本试卷分为第I卷（选择题）和第II卷（非选择题）第I卷（选择题满分100分）注意事项：1.答第I卷前，考生务必将自己的姓名、班级、考号等信息填写在答题卡上。

2.选出每小题的答案后，用铅笔将答题卡上对应题目的答案标号涂黑，如需改动，用橡皮擦干净后，再填涂其他答案标号。

不能答在本试卷上，否则无效。

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，你将有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. Why was the man disappointed?A. The play wasn’t interesting.B. The tickets were unavailable.C. The play was only for daytime.2. What are the speakers going to do?A. To see an exhibition.B. To have a meeting.C. To listen to a lecture.3. What sport does the man like best?A. Swimming.B. Tennis.C. Golf.4. What musical instrument does the man play?A. The piano.B. The violin.C. None.5. What is the man’s opinion?A. He thinks highly of Jim.B. He disagrees with the woman.C. He doesn’t care at all.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。

江西省九所重点中学2017届高三下学期联合考试英语试题本试卷分为第Ⅰ卷（选择题）和第Ⅱ卷（非选择题）两部分．共150分，考试时间120分钟．第I卷（共两部分，共115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，并标在试卷的相应位置。

听完每段对话后，你都有10秒钟的时间回答有关小题和阅读下一小题。

每段对话仅读一遍。

1．Why doesn't the girl's father believe that she is a grown woman?A．She watches TV all day．B．She often buys cartoon btoys.C．She spends most time watching cartoons．2．How will the man go to San Francisco?A．By bus．B．By train.C．By air.3．What does the man suggest the woman do?A．Open the door carefully．B．Have John fix the lock.C．Fix the door in time.4．Why does the man go home by train?A．It's more comfortable．B．He can finish a book in the long trip．C．All flights are booked．5．What will the man look like?第二节（共15小题；每题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。

江西省南昌市2017届高三英语第四次联考试题时间：120分钟满分：150分第Ⅰ卷(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)请听下面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 the play to begin according to the schedule?A. At 9:10．B. At 9:30．C. At 9:50．2. How will the speakers probably go?A. On foot．B. By bus．C. By taxi．3. What will the man do this afternoon?A. Give a report．B. Have a discussion．C. Take a business trip．4. What does the woman thi nk of the man’s opinion?A. She considers it a fact．B. She disagrees with him．C. She thinks it interesting．5. What are the speakers mainly talking about?A. Their new boss．B. Their hobbies．C. Their work．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。

听每段对话或独白后，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。

联考高三年级英语学科试题第I 卷（共三部分，满分115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，并标在试卷的相应位置。

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. On which nights is the store open late?A. Thursdays and Fridays.B. Tuesdays and Fridays.C. Tuesdays through Fridays.2. Who will pay for the bill?A. The man.B. The woman.C. Both of them.3. What did the woman do?A. She had a holiday.B. She went to Spain with her cousin.C. She invited her cousin to her place.4. Why did the man call the office?A. To make an appointment.B. To tell the doctor he’ll be late.C. To ask someone to repair his car.5. What is the woman’s opinion of the film?A. Interesting.B. Better than she expected.C. Disappointing.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。

江西省南昌二中、临川一中2017届高三下学期期中联考理综物理试卷答 案二、选择题 14~17．CDDB 18．ABC 19．ABD 20．AC 21．ACD 三、非选择题 22．（1）CD （2）减小 （3）mg（4）不需要；需要 23．（1）0g xEI R R r R =+++（2）BC（3）A ；8.75 V ．24．解析：（1）小物块到C 点时的速度竖直分量为Cy 04v v tan533 4 m /s 3=︒=⨯= 下落的高度2Cy v 16h 0.8m 2g20=== 小物块在木板上滑行达到共同速度的过程，木板的加速度大小：21mg 10a 0.31m /s M 3μ==⨯=， 物块的加速度大小：22 / 3/a mg m g m s μμ=== ，由题意得：1D 2a t v a t =-，22112122D v t a t a t l --=联立以上各式并代入数据解得D v /s =小球在D 点时由牛顿第二定律得2D N mv F mg R-= 代入数据解得N F 26N =，由牛顿第三定律得N N F F 26 N '==，方向竖直向下．（3）小物块由A 到D 的过程中，由动能定理得2211f D 022mgh mgR(1cos53)W mv mv +-︒-=-，代入数据解得f W 6J =． 25．（18分）（1）34μ=；（2）1.5 kg ；（3）8.4 J（1）对ab 棒，由平衡条件得11m gsin m gcos 0θ-μθ= （2分）解得34μ=（或0.75） （2分） （2）当P 的质量最大时，P 和cd 的运动达到稳定时，P 和cd 一起做匀速直线运动，ab 处于静止状态，但摩擦力达到最大且沿斜面向下．设此时电路中的电流为I 对ab 棒，由平衡条件得沿斜面方向：1cos sin 0IlB m g N θθμ--= （2分） 垂直于斜面方向：1sin cos 0N IlB m g θθ--= （2分） 或水平方向：sin cos 0IlB N N θμθ--= 竖直方向：1Ncos Nsin m g 0θ-μθ-=对cd 棒，设绳中的张力为T ，由平衡条件得20T IlB m g μ--= （1分） 对P ，由平衡条件得Mg T 0-= （1分） 联立以上各式得：M 1.5Kg = （1分） 故当P 的质量不超过1.5 Kg 时，ab 始终处于静止状态（3）设P 匀速运动的速度为v ，由法拉第电磁感应定律和闭合电路欧姆定律得12()Blv I R R =+ ，得v 2 m /s = （2分）对P 、棒cd ，由牛顿第二定律得()2212iBlv Mg m g Bl M m a R R μ--=++两边同时乘以t ∆，并累加求和，可得()2212BlsMgt m gt Bl M m v R R μ--=++解得41s m 30=（2分） 对P 、ab 棒和cd 棒，由能量守恒定律得()2221Mgs m gs Q M m v 2=μ+++，Q 12.6 J = （2分） 在这1 s 内ab 棒上产生的焦耳热为1112R Q Q 8.4J R R ==+ （1分）33．（1）ACE（2）①活塞缓慢左拉的过程中，气体B 做等温变化1122B B B B p V p V = （2分）BNf m 1gBIl2B 75 cmHg 20S p 25S ⨯⨯＝（设S 为玻璃管横截面） 2B p 60cmHg = （2分）左右管中水银面的高度差h (7560)cm 15 cm ∆=-= （1分） ②活塞被缓慢的左拉的过程中，气体A 做等温变化1A p (7525)cmHg 100cmHg =+= （1分） 2A p (755)cmHg 80cmHg =+= （2分）1122A A A A p V p V =2A 10010S 80L S ⨯⨯＝，2A L 12.5 cm = （2分）34．（1）BCD（2）①如图所示，FG 为法线D 75∠=︒，则EQA 75∠=︒，PQE 15∠=︒，PQA 60∠=︒PQG 30∠=︒ （2分） sin 45n 2sin30︒==︒（3分）②设全发射临界角为C ，如图所示12sin C n 2==，C 45=︒ （2分） JOD 90 C 45∠=︒-=︒，D 75∠=︒因而OJD 60∠=︒激光在CD 边的入射角3045︒<︒，因而激光能够从CD 边出射．（3分）C C AB C D H IJ OF GQP45°ABCDE。