天津市滨海新区七所重点学校2018届高三毕业班联考英语试卷(含答案)
天津市滨海新区七所重点中学2025届高三最后一卷英语试卷含解析
天津市滨海新区七所重点中学2025届高三最后一卷英语试卷注意事项1．考生要认真填写考场号和座位序号。
2．试题所有答案必须填涂或书写在答题卡上，在试卷上作答无效。
第一部分必须用2B 铅笔作答；第二部分必须用黑色字迹的签字笔作答。
3．考试结束后，考生须将试卷和答题卡放在桌面上，待监考员收回。
第一部分（共20小题，每小题1.5分，满分30分）1．The Internet is so much a part of our culture that it affects our lives by acting as a ______ for face-to-face contacts. A．preference B．motivationC．substitute D．guideline2．My wife sometimes _____ something she has long been looking for. That’s why she enjoys window shopping. A．looks up B．looks for C．picks up D．picks out3．_______ in my life impressed me so deeply as my first visit to the Palace Museum.A．Anything B．NothingC．Everything D．Something4．________ competence in acquiring English today comes from the ability to express oneself rather than in simply passing exams.A．Due B．RawC．Core D．Keen5．—Is Peter coming?—No, he____ his mind after a phone call at the last minute.A．changes B．changedC．was changing D．had changed6．Lifting off at sunrise, the hot air balloon goes wherever the wind blow.A．may B．must C．need D．should7．— He made an apology be blamed what he had done.— It's really wise of him.A．so as to not; of B．in order to not; forC．so as not to; for D．in order not to; of8．The old bank, _____ appearance is not a pretty sight, is extremely beautiful on the inside.A．whose B．whereC．when D．which9．It wasn't easy having my friends talk about their freshman years ________ I wasn't a part of．A．whom B．when C．that D．what10．The shocking news made me realize ______ terrible problems we would face.A. that B．how C．what D．why11．Oh！I can feel something _____ up my leg！It must be an insect．A．to climb B．climbingC．climb D．climbed12．Peter has previous experience, ______ I think he’s the right person for the job.A．or B．butC．for D．so13．Try to be independent, for your parents can't do ________ for you all your life.A．something B．nothingC．everything D．anything14．When Thanksgiving Day is the corner, stores and supermarkets are busy with people.A．around B．on C．with D．at15．---Nowadays, buyers accustomed to prices moving upward just adopt a wait-and-see attitude.---If they continue to _____, then our company is closing down.A．fish in the air B．sit on the fenceC．fly off the handle D．beat around the bush16．As ______ healthier lifestyle is being promoted, the bicycle has also become a tool that keeps people on ______ go. A．the; a B．a; aC．a; the D．a; /17．Once you’ve ________ the items you ordered, put this record in your file.A．checked in B．checked offC．checked out D．checked with18．We have time and again ____our position on Taiwan issue! Whatever happens, we won’t change it!A．explained B．clarified C．introduced D．concluded19．---It was Sunday today, and I _______ up very early.---So you really had a good rest.A．didn’t need to get B．needn’t have got C．needn’t to get D．don’t need get20．Most students study because it’s unavoidable. ________, there are students who actually enjoy it.A．As a result B．In additionC．In conclusion D．By contrast第二部分阅读理解（满分40分）阅读下列短文，从每题所给的A、B、C、D四个选项中，选出最佳选项。
2018年天津市滨海新区英语试题及答案
微信订阅号：初中英语资源库，获取全套试卷滨海新区一模II. 单项选择：21 ----Who’s girl on the left? ----This is Betty. She is lovely girl. Many people like her.A.a, anB. a , theC. the, aD. the, an22.Tom doesn’t like schoolbag. He likes .A.him, yoursB. him, yourC. his , yourD. his , yours23.What beautiful music it is! It’s really nice.A.smellsB. soundsC. tastesD. looks.24.----Who ran in the sports meeting. ----Henry did, I think.A.fastB. fasterC. fastest D very fast25.My friends often give me fans presents because they know I like them.A.asB. forC. withD. about26.Eating dumplings at Spring Festival is in China.A.impossibleB. luckyC. strangeD. traditional27.I can look after myself. it won’t be easy for me.A.orB. althoughC. ifD. whether28.If he tells a lie, his father will him.A.protectB. describeC. punishD. trust29.----How’s the in Tianjin? -----Too bad. There are always long lines of cars on roads.30.---What a mess! Please those old magazines, Mike! ----OK, Mum.A.throw awayB. look throughC. think aboutD. find out31.---Where are you going for your summer vacations? ---Well, we yet.A.aren’t decidedB. haven’t decidedC. don’t decideD. didn’t decide32.Mrs.Li usually reads newspaper in the morning, but she see a film this morning.A.canB. mustC. needD. might33.When this stone bridge ? -----Two years ago.A.did, buildB. does, buildC. was, builtD. is built34.---Do you know the Great Wall? ------Next Friday.A.when will we visitB. when we will visitC.how will we visitD.how we will visit35.----I’ll go to the museum this afternoon, so I can’t go swimming with y ou. ------ .A.That’s a pityB.You’re welcome.C. It’s my pleasureD. Don’t mention it.三．完形填空March 22nd is World Water Day. It started in 1993. It not only makes us think about the importance of water, but also calls on ( 号召) us to 36 and protect water. Today, we’re facing terrible water problems. Among them, wastewater problem is especially 37 . And the subject of World Water Day in 2017 is “wastewater”.What is wastewater? It is used water. Usually, wastewater comes from homes, 38 , hospitals and so on. It is produ ced by different kinds of activities, including washing the machines, taking showers and using the kitchen. The rain also 39 wastewater when it is running down the street during a storm. No matter where it comes from, this kind of water is sure to have 40 harmful in it.41 must we treat ( 处理) wastewater? Wastewater has a big influence on our life. It causes both illness for us and pollution for the environment. We must care for our environment and our own 42 .How can we treat wastewater? Different kinds of wastewater need different ways of treatment.Wastewater 43 homes can be reused. Then there will be 44 wastewater. Also, factory wastewater has to be cleaned 45 it goes back to nature.36.A. drink B. save C. carry D. watch37.A. easy B. popular C. small D. serious38.A. factories B. lakes C. rivers D. seas39.A. gets back B. hands in C. changes into D. picks up40.A. nothing B. something C. nobody D. somebody41.A. What B. Who C. Why D. How42.A. work B. interest C. health D. business43.A. on B. for C. with D. from44, A. less B. more C. better D. worse45.A. and B. whether C. after D. before四．阅读理解AMr. Smith is fifty years old .He began to teach in a middle school twenty-six years ago . He works hard and always comes to his office on time .He expects his students to be honest and is strict with them . Some of his students become famous people ,but they still remember him and often write to him .Of course, the old man is proud of it .This term he began to teach Grade One . Some of the new students were told about him ,but the others didn’t know him well .He told them how to be an honest person .He gave them several examples and said ,“I hate telling a lie most .”Before class was over ,he told all his students to finish Exercise 8 in Unit 1.The next morning ,as soon ashe came into the classroom , he as ked , “Who’s finished Exercise 8?”A few students put up their hands .He shook his head and said , “Open your workbooks and see whether there’s Exercise 8 in Unit 1 or not ? ”The students had a look at their workbooks and their faces turned red at once .46.How long has Mr. Smith taught in the middle school ?A.For fifty years .B. For twenty-six years .C. For twenty years .D. For thirty-six years .47.What is Mr. Smith proud of ?A.All students are honest .B. He teaches math very well .C. His students often write to him .D. He is strict with students .48.Mr. Smith told his students .A.how to study hardB. not to tell a lieC. how to be famousD. not to be late for class49.Why did Mr. Smith tell his students to finish Exercise 8 in Unit 1?A.Because he wanted to know if they were honest .B.Because Exercise 8 was very easy for them .C.Because he wanted them to do more exercises .D.Because the students could do it well .50.The students felt when Mr .Smith found them telling a lie .A.angryB. happyC. boredD. sorryBPeople usually think volunteering is just for adults and it seems hard for students like us. But it is totally different in Canada. The government encourages people of any age to volunteer in public and make contributions (贡献) to the whole society. Therefore, if students want to graduate from high school, 30 hoursof volunteering is required. If students want to get into a good university, it helps if they contribute a lot to society. Volunteering is an important factor (因素) that universities will take into consideration.What is more, there are volunteer opportunities everywhere. People can find information about how to volunteer posted in the library or on the internet. It includes many different jobs, such as wrapping ( 包装) gifts in a shopping mall, taking care of small kids or cleaning up a church. Students can choose what they want to do and register (注册) online.I got my first volunteering job in New Westminster Museum every Sunday from 9:30 am to 11:30 am.My job is to proofread the documents (校对文件) on a laptop and correct mistakes. The museum is about the history of the Irving Family, a historically important family in New Westminster. At first, I was nervous to communicate with others. But as time passed I became more open. During volunteering, I not only learned how to work with other volunteers, but also learned a lot of history about New Westminster.As a volunteer, I am proud of myself. I enjoy doing my job and helping others.51.From the first paragraph, we know in Canada.A.being a volunteer can earn a lot of money.B.the government only ask adults to be volunteer.C.students can graduate from high school without doing volunteering.D.the students who contributes a lot to society may have a chance to enter the good university.52.The writer’s first volunteering job is to .A.wrap giftsB.proofread the documentC. take care of small kids.D. clean up a church.53.The writer was to communicate with others at first.A.nervousB. openC. surprisedD. excited54.The writer wrote the article mainly toA.introduce the volunteering in CanadaB.describe where people can find volunteer chances.C.show that she learned a lot from being a volunteer.pare her first volunteering job with other jobs to show their d ifferences.55.The best title of the article maybe “”.A.Students in CanadaB.Volunteering in CanadaC.Where to find a volunteering job in Canada.D.The best way to find a volunteering job in Canada.CGreen is an important color in nature. It is the color of grass and the leaves on trees. It is also the color of most growing plants.Sometimes, the word green means young, fresh and growing. Sometimes, it describes something thatis not yet ripe or finished.For example, a greenhorn is someone who has no experience, who is new to a situation. In thefifteenth century, a greenhorn referred to a young cow or ox whose horns (角) had not yet developed. A微信订阅号：初中英语资源库，获取全套试卷century or so later, a greenhorn was for a soldier who had not yet had any experience in battle. By the eighteenth century, a greenhorn had the meaning it has today - a person who is new in a job.Someone who has the ability to grow plants well is said to have a green thumb. The expression comes from the early nineteen hundreds. A person with a green thumb seems to have a magic touch that makes plants grow quickly and well. You might say that the woman next door has a green thumb if her garden continues to grow long after your plants have died.The Green Revolution is the name given some years ago to the development of new kinds of rice and other grains. The new plants produced much larger crops. The Green Revolution was the result of hard work by agricultural scientists who had green thumbs.56.According to the passage, a greenhorn means now.A.a person who is new in a job.B. a soldier who has not had any experience in war.C.a young cow or ox whose horns have not yet developed.D. a man who doesn’t have the skills to live in the country.57.The meaning of the underlined word “ripe” in the second paragraph isA.unfinishedB. fully grownC. freshD. experienced58.Which of the following about the Green Revolution is NOT right?A.If there weren’t the Green Revolution, we would have no rice to eat.B.The expression “the Green Revolution” appeared several years a go.C.Because of the Green Revolution, we have more kinds of rice and other grains.D. Agriculture scientists with green thumbs started the Green Revolution.59.We can know from the passage that .A.all growing plants is green.B. green is the most important color in nature.C.a person with green thumb can make plants grow well.D.the expression “a green thumb” has a history of two hundred years.60.The main idea of the passage is .A.a greenhornB. a green thumbC. the Green RevolutionD. the word “green” and its story.五．补全对话A.You’d better take a bus.B.Why do you go there?C.You know, I want to lose my weight.D.But I don’t know the way there.E.It’s a wonderful one.F.Where do you usually do sports?G.It’s between a bank and a theater.A: Hello , Tony. What are you busy doing these days?B: I’m busy exercising. 61 .A: What for? You’re in good health.B: Thank you. But I want to be healthier.A: 62 .B: At Sunshine Sports Centre. I’m a VIP of it.A: Wow, cool. I’d like to exercise there, too. 63 .B: Don’t worry. I can help you.A: Is it far from here?B: Yes, it’s about three kilometers from here. 64 .A: Which bus should I take?B: You need to take Bus 3 to Binjiang Road, and walk along that road to the end. Then you can see SunshineIt;s easy to find it.Sport Center on your left. 65A: Thank youj very much.B: My pleasure.六完成句子66.她捡起那只大碗，但是不喜欢。
2018年天津市滨海新区七所重点学校高三毕业班联考答案
2018年天津市滨海新区七所重点学校高三毕业班联考化学试卷答案第Ⅱ卷（非选择题，共64分）二、非选择题：19、（共14分）(1) 33（1分）（1分）（2）a c （2分）(3)H 3AsO 4H ++H 2AsO 4- （2分）(4)CaSO 4 （2分）(5) 沉淀过量的S 2-，使As 2O 3(a)+3S 2-(aq)2AsS 32-(aq) 平衡左移，提高沉砷效果。
（2分）（前后各1分）H 3AsO 3+H 2O 2=H 3AsO 4+H 2O （2分） （6）4FeS 2＋15O 2＋14H 2O 4Fe(OH)3 ＋8SO 42−＋16H +（2分）20、（共17分）（1）（1分）羧基、羟基、硝基（3分） （2）Fe(或氯化铁或催化剂)（1分）；取代反应或硝化反应（1分） （3）AD （2分）（选对一个给1分，多选错选不给分） （4）（5） 或（2分）—CH 3+3NaOHO－O －C －CH 3 ═COOHONa+CH 3COONa+2H 2O （2分）COONa—CH 3COOHH 3C — COOH —CH 3H 3C —（6）（2分）（7）（每步条件和产物1分，共3分，顺序颠倒不给分）(氧化写成酸性高锰酸钾也对) 21、(共18分)（1）d ，c （各1分，共2分）（2）长颈漏斗（1分）；生石灰或碱石灰或氢氧化钠（1分）；（写化学式不给分饱和碳酸氢钠溶液或饱和NaHCO 3溶液（1分）（写硫酸的不扣分）； 湿润的红色石蕊试纸变蓝（1分）(合理均给分）； （3）Ⅱ（1分）；（4）取少量固体放入试管中，加热，固体大部分消失，在试管口内壁又有较多的固体凝结。
（2分）（答出受热分解固体消失或减少就给分） （5）CO 2在水中存在平衡：CO 2+H 2OH 2CO 3HCO3+H +，有H 2SO 4存在时，可使上述平衡向左移动，从而减少CO 2在水中的溶解（1分）（6）c(HCO 3-)>c(H 2CO 3)>c(CO 32-) （2分）（若排入其他离子正确即给分） （7）①2H 2O-4e -=O 2↑+4H + , C(H +)增大，与溶液中CO 32-结合生成HCO 3-(2分) ②84(cV 2-cV 1)/1000W （2分）偏小（2分） 22、 (共15分）Ⅰ.（1）0.2mol/（L ▪min ）; （1分） 1.25 （1分）（2） cd （2分）（选对一个给1分，多选错选不给分） （3）2NO(g) ＋O 2(g)2NO 2(g) ΔH = －115 kJ·mol －1，温度升高，平衡向逆反应方向移动，NO 转化为NO 2的平衡转化率降低（2分热化学方程式1分，解释分析1分，写ΔH<0的不扣分,ΔH 算错的扣1分）Ⅱ.（4）SO 2、NO x (1分）（漏写不给分）（5）①4NO+3ClO 2－+2H 2O=4NO 3－+3Cl －+4H+(2分）提高(1分）②SO 2的初始浓度大于NO(合理均给分）(1分）（6）①NO+5e -+6H +=NH 4++H 2O (2分） ②5:2(2分）—CH 3NO 23NO 2NH 2。
天津市滨海新区七所重点学校2018届高三毕业班联考英语试卷(带答案)
2018年天津市滨海七所重点学校高三毕业班联考英语试卷第I卷选择题（共115分)注意事项：1．答第Ⅰ卷前，考生务必将自己的姓名、准考证号、考试科目用铅笔涂写在答题卡上。
2．选出答案后，用铅笔把答题卡上对应的题目的答案标号涂黑，如需改动，用橡皮擦干净后，再填涂其它答案。
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）听下面五段对话。
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. What does the man plan to do?A. Watch a show.B. Do an experiment.C. Attend a lecture.2. How will the man probably go to Chicago?A. By car.B. By plane.C. By bus.3. What does the man mean?A. Few people agree with his points.B. Few people know about arts.C. Few people read his article.4. What do we know about Helen?A. She is away traveling.B. She started a studio.C. She was fired.5. How many tickets does the woman have?A. 2.B. 3.C. 4.第二节（共10小题；每小题1.5分，满分15分）听下面几段材料。
每段材料后有几个小题，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。
听每段材料前，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。
天津市2018届高三下学期第二次联考英语试题Word版含答案
本试卷共分为第Ⅰ卷（选择题）和第Ⅱ卷（非选择题），满分130分；考试时间为 100分钟。
本试卷共9页。
第I卷选择题（共95分）第一部分：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）1. ― I’m sorry for what I have done to you.― .A. Of course notB. Let’s forget it.C. No, nothing much.D. You bet.2. The company can’t afford the latest equipment at present., they keep trying new ways to improve efficiency.A. MeanwhileB. OtherwiseC. FurthermoreD. Nevertheless3. The director had to one or two scenes in the play because of the timeproblem.A. find outB. make outC. leave outD. reach out4. Find out the reason when you make a mistake, and then making the mistake becomes .A. worthwhileB. preciousC. essentialD. favorable5. It is so cold that you can’t go outside fully covered in thick clothes.A. ifB. unlessC. onceD. when6. We have been making furniture for over 100 years, and have a worldwide for quality.A. contributionB. qualificationC. reputationD. institution7. — How do you know Jimmy will come out first in the final exam?— . He is always working hard and he is very clever.A. You are rightB. It’s my guessC. No wonderD. No offence.8. —Have you played the piano for a long time?— Yes, since I the Aiqin Club.A. joinedB. joinsC. had joinedD. has joined9. Cheer up! Everyone may have periods in their lives everything seems tough.A. whichB. thatC. whereD. when10. The spokesperson spoke very slowly, what she would say.A. being weighedB. to weighC. weighedD. weighing11. There is a possibility that instead of cash and bank cards, mobile paymentsbecome the main method of payment by 2020.A. mayB. mustC. shall D need12. Many things in the countryside, like the fresh air and peaceful environment,are people living in big cities can’t enjoy.A. whichB. whereC. whatD. that13. Into the dark classroom , who was surprised and moved when every student sang Happy Birthday to her.A. did Cindy walkB. walked CindyC. Cindy walkedD. Cindy did walk14. from university, Peter spent two years doing a part-time job beforefinally finding a position in a small company.A. GraduateB. GraduatedC. Being graduatedD.Having graduated15. —I forgot all about the party yesterday.—I , too, if my secretary hadn’t reminded me.A. didB. hadC. shouldD. would have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，从16-35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并在答题卡上将其涂黑。
2018年全国普通高等学校招生统一考试英语(天津卷)(解析版)
学.科.网...学.科.网...学.科.网...学.科.网...学.科.网...学.科.网...学.科.网...学.科.网...学.科.网...学.科.网...学.科.网...学.科.网...学.科.网...学.科.网...绝密★启用前2018年普通高等学校招生全国统一考试（天津卷）英语笔试本试卷分为第I卷（选择题）和第II卷（非选择题）两部分，共130分，考试用时100分钟。
第I卷1至10页，第II卷11至12页。
答卷前，考生务必将自己的姓名、准考号填写在答题卡上，并在规定位置粘贴考试用条形码。
答卷时，考生务必将答案涂写在答题卡上，答在试卷上的无效。
考试结束后，将本试卷和答题卡一并交回。
祝各位考生考试顺利！第I卷注意事项：1. 每小题选出答案后，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，再选涂其他答案标号。
2. 本卷共55小题，共95分。
第一部分：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。
例：Stand over there___________ y ou’ll be able to see it better.A. orB. andC. butD. while答案是B。
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16~35各题所给的A、B、C、D四个选项中，选出最佳选项。
1.1.【2018·天津】—Wasn't Joan supposed to be here by now?—________. She will be here in about twenty minutes.A. All rightB. Don't worryC. No wonderD. Enjoy yourself【答案】B【解析】考查交际用语。
2018年高考天津英语真题答案
2018年普通高等学校招生全国统一考试（天津卷）英语笔试参考答案第I卷第一、二部分（Key to 1-55）1．B 2．C 3．A 4．D 5．A6．C 7．B 8．B 9．C 10．D11．B 12．D 13．C 14．B 15．A16．C 17．B 18．D 19．D 20．B21．A 22．A 23．C 24．B 25．A26．C 27．B 28．D 29．A 30．B31．C 32．B 33．D 34．A 35．D36．C 37．B 38．C 39．A 40．D41．A 42．D 43．A 44．D 45．C46．B 47．D 48．B 49．C 50．A51．D 52．A 53．C 54．B 55．A第II卷第三部分第一节Some possible answers:56．Curiosity made her do so.Or:The desire to explore.57．Because it was getting dark，and she didn’t want her mother to worry about her.Or:Because she was seared，and might not be able to find her/the way back home.58．She had rich imagination and she was brave.Or:She was a brave and determined girl with rich imagination.Or:She was imaginative and determined，and she dared to explore.Or:She was imaginative，adventurous and determined.59．We all sometimes fail.Or:We face failure/defeat/hardships/challenges in life.Or:There are difficulties/barriers/obstacles in life.Or:We run into trouble sometimes.Or:We have trouble in life.60．I will try to reach my goal because I want to live an exciting life.Or:I will try to reach/get to the top of the“mountain”because I want to be successful in life.。
天津市滨海新区七所重点学校2018届高三毕业班联考数学(文)试卷 Word版含答案
2018年天津市滨海七所重点学校高三毕业班联考数学试卷（文科）本试卷分第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1至2页，第Ⅱ卷2至4页。
参考公式： 圆柱的体积公式sh V =，其中S 表示棱柱的底面面积，h 表示棱柱的高 锥体的体积公式13V sh =，其中S 表示锥体的底面面积，h 表示锥体的高 第I 卷（选择题，共40分）一. 选择题（本题共8个小题，每小题5分，共40分。
在每小题给出的四个选项中，有且只有一个是正确的）1.已知全集}5,4,3,2,1{=U ,集合}5,1{=A ,集合}5,3,2{=B ,则()=⋂A B C U ( ) A.}2{B.}3,2{C.}1{D.}4,1{2.实数,x y 满足不等式组⎪⎩⎪⎨⎧≥≤--≥-+10202y y x y x 则目标函数y x z 2+=的最小值是（ ）A.2B.3C.4D.53.执行如图1所示的程序框图,若输入n 的值为3,则输出s 的值是（ ）A.1B. 2C. 4D.74.若31)21(=a ，3log ,2log 2131==c b ,则c b a ,,的大小关系是( )A.c a b <<B.a c b <<C.c b a <<D. a b c <<5.设R x ∈，则“1<x ”是“02||<-x x ”的（ ）A.充分不必要条件B.必要不充分条件C.充要条件D.既不充分也不必要条件 6.函数)2,0)(sin()(πϕωϕω<>+=x x f 的最小正周期是π，若其图象向左平移3π个单位后得到的函数为奇函数，则函数()f x 的图象 ( ) A.关于点)0,12(π对称 B.关于直线12x π=对称 C.关于点)0,6(π对称 D.关于直线6π=x 对称7.已知双曲线22221x y a b-=(0,0)a b >>的两条渐近线与抛物线 )0(22>=p px y 的准线分别交于A ,B 两点,O 为坐标原点. 若双曲线的离心率为2,ABO ∆的面积为32, 则抛物线的焦点为( )A. (0,21)B.（0,22）C. )0,1(D. )0,2(8.已知函数()2f x x x a x =-+,若存在(]32，∈a ，使得关于x 的函数()()y f x tf a =- 有三个不同的零点，则实数t 的取值范围是（ ）A ．⎪⎭⎫ ⎝⎛4589，B ．⎪⎭⎫ ⎝⎛24251，C ．⎪⎭⎫ ⎝⎛891，D ．⎪⎭⎫ ⎝⎛451，第Ⅱ卷 (非选择题，共110分)二.填空题：本大题共6小题，每小题5分，共30分.把答案填在试题的相应的横线上. 9.已知i 是虚数单位，则=++ii437 ． 10.一个几何体的三视图如图所示，则该几何体的体积为 ．11.等比数列{}n a 中，各项都是正数，且1a ,312a ,22a 成等差数列，则15141413a a a a ++= ．12.设直线a x y 2+=与圆022:22=--+ay y x C )0(>a 相交于B A ,两点,若32=AB ,则=a ．13.已知正实数b a ,满足,b a >且21=ab ,则b a b a -++21422的最小值为___________.14.已知菱形ABCD 的边长为2,︒=∠120BAD ,点E 、F 分别在边CD BC ,上,λ=，DC DF μ=,若252=+μλ, 则⋅的最小值 ．三.解答题：本大题6小题，共80分．解答应写出文字说明，证明过程或演算步骤．15.（本题满分13分）从高三学生中抽取n 名学生参加数学竞赛，成绩（单位：分）的分组及各数据绘制的频率分布直方图如图所示，已知成绩的范围是区间)100,40[,且成绩在区间)90,70[的学生人数是27人, （1）求n x ，的值；（2）若从数学成绩（单位：分）在)60,40[的学生中随机选取2人进行成绩分析 ①列出所有可能的抽取结果；②设选取的2人中,成绩都在)60,50[内为事件A ,求事件A 发生的概率.16．（本题满分13分）锐角ABC ∆中,c b a ,,分别为角C B A ,,的对边,b B a 7sin 4=，（1）若6,8,a b c =+=求ABC ∆的面积； （2）求)322sin(π+A 的值.17.（本题满分13分）如图，在四棱锥ABCD P -中，底面ABCD 的边长是2的正方形，PD PA =,PD PA ⊥,上的点，为PB F 且PBD AF 平面⊥. （1）求证:AB PD ⊥;（2）求证:平面⊥PAD 平面ABCD ;（3）求直线PB 与平面ABCD 所成角的正弦值.18．(本题满分13分)已知(0,2)A -,椭圆2222:1(x y E a b a b+=>>2的右焦点,直线AF O 为坐标原点. .0006.0.0.0x .0（1）求椭圆的方程；（2）设过点A 的动直线l 与椭圆E 相交于P ,Q 两点,当OPQ ∆的面积最大时,求直线l 的方程.19. (本题满分14分)已知数列{}n a 的前n 项和为n S ,满足21n n S a =-(*n N ∈),数列{}n b 满足()()111n n nb n b n n +-+=+(*n N ∈),且11b =（1）证明数列⎭⎬⎫⎩⎨⎧n b n 为等差数列,并求数列{}n a 和{}n b 的通项公式; （2）若)log 23)(log 23()1(4)1(1221+-+++-=n n n n a a n c ,求数列{}n c 的前n 项和n T 2;（3）若n n n b a d ⋅=,数列{}n d 的前n 项和为n D ,对任意的*n N ∈,都有a nS D n n -≤,求实数a 的取值范围.20． (本题满分14分)已知函数()1ln xf x x ax-=+（其中0a >,e 2.7≈）. （1）当1=a 时,求函数)(x f 在))1(,1(f 点处的切线方程; （2）若函数()f x 在区间[)+∞,2上为增函数,求实数a 的取值范围; （3）求证:对于任意大于1的正整数n ,都有111ln 23n n>+++. 2018年天津市滨海七所重点学校高三毕业班联考数学试卷（文科）评分标准一、选择题：C B C D A B D B 二、填空题：9.i -1 10. π64+ 11. 12- 12.2 13. 32 14. 3 三、解答题：15.（本题满分13分）从高三学生中抽取n 名学生参加数学竞赛，成绩（单位：分）的分组及各数据绘制的频率分布直方图如图所示，已知成绩的范围是区间)100,40[,且成绩在区间)90,70[的学生人数是27人, （1）求n x ，的值；（2）若从数学成绩（单位：分）在)60,40[的学生中随机选取2人进行成绩分析 ①列出所有可能的抽取结果；②设选取的2人中,成绩都在)60,50[内为事件A ,求事件A 发生的概率..0.0.0.0x.0解：(1)由直方图可得成绩分布在区间的频率为024.0)03.0016.002.0006.0004.0(1.0=++++-=x ............. 2分样本容量50)024.003.0(1027=+=n ............ 4分(2) ①成绩在区间)50,40[共有2人记为y x ,成绩在区间)60,50[共有3人记为c b a ,, ............ 5分则从中随机选取2人所有可能的抽取结果共有10种情况；},}{,}{,}{,}{,}{,}{,}{,}{,}{,{c b c a b a c y b y a y c x b x a x y x ............ 9分② “从上述5人中任选2人，都来自)60,50[分数段”为事件A; 则事件A 包含的基本事件有},}{,}{,{c b c a b a ............ 11分故所求概率103)(=A P ............ 13分16．（本题满分13分）锐角ABC ∆中,c b a ,,分别为角C B A ,,的对边,b B a 7sin 4=，（1）若6,8,a b c =+=求ABC ∆的面积； （2）求)322sin(π+A 的值. 解：(1) bB a 7sin 4=B B A sin 7sin sin 4=∴……………1分π<<B 0 ……………2分 47sin =∴A ……………3分 A 是锐角 ……………4分43471sin 1cos 22=⎪⎪⎭⎫ ⎝⎛-=-=∴A A ……………5分 由余弦定理 2222cos a b c bc A =+-，得bc bc c b bc c b 276427)(2336222-=-+=-+=， ∴8=bc ，……………6分 则747821sin 21=⨯⨯==∆A bc S ABC ……………7分（2）87343472cos sin 22sin =⨯⨯==A A A ，……………9分 81)47(21sin 212cos 22=-=-=A A ……………11分 163732381)21(87332sin 2cos 32cos 2sin )322sin(+-=⋅+-⋅=+=+πππA A A …13分17.（本题满分13分）如图，在四棱锥ABCD P -中，底面ABCD 的边长是2的正方形，PD PA =,PD PA ⊥,上的点，为PB F 且PBD AF 平面⊥. （1）求证:AB PD ⊥;（2）求证:平面⊥PAD 平面ABCD ;（3）求直线PB 与平面ABCD 所成角的正弦值.证明：（1）AF PBD ⊥平面 PB PBD ⊂平面 PD AF ∴⊥……………………1分PA PD ⊥ PA AF A = PD PAB ∴⊥平面 ……………………2分AB PAB ⊂平面PD AB ∴⊥……………………3分 (2)ABCD 是正方形 AB AD ∴⊥ …………………4分PD AB ⊥ AD PD D = AB PAD ∴⊥平面 …………………5分AB ABCD ⊂平面 PAD ABCD ∴⊥平面平面 …………………6分(3)取AD 的中点H ,连接PH ,BH ,PA PD =,PH AD ∴⊥PAD ABCD ⊥平面平面 PH PAD ⊂平面 …………………7分 PAD ABCD AD =平面平面PH ABCD ∴⊥平面 ……………………8分BH PB ∴是在平面ABCD 内的射影 ……………………9分PBH PB ABCD ∴∠就是与平面所成的角……………………10分在等腰中PAD Rt ∆，2AD = H 是AD 中点 1PH ∴= ……………………11分在中BAH Rt ∆1,2AH AB ==BH ∴=PB ∴=……………………12分sin PH PBH PB ∴∠===……………………13分 18．(本题满分13分) 已知(0,2)A -,椭圆2222:1(0)x y E a b a b+=>>F 是椭圆E 的右焦点，PABCDF直线AFO 为坐标原点。
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2018年天津市滨海七所重点学校高三毕业班联考
英语试卷
第I卷选择题（共115分)
注意事项：
1．答第Ⅰ卷前，考生务必将自己的姓名、准考证号、考试科目用铅笔涂写在答题卡上。
2．选出答案后，用铅笔把答题卡上对应的题目的答案标号涂黑，如需改动，用橡皮擦干净后，再填涂其它答案。
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）
听下面五段对话。
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.What does the man plan to do?
A.Watch a show.
B.Do an experiment.
C.Attend a lecture.
2.How will the man probably go to Chicago?
A.By car.
B.By plane.
C.By bus.
3.What does the man mean?
A.Few people agree with his points.
B.Few people know about arts.
C.Few people read his article.
4.What do we know about Helen?
A.She is away traveling.
B.She started a studio.
C.She was fired.
5.How many tickets does the woman have?
A.2.
B.3.
C.4.
第二节（共10小题；每小题1.5分，满分15分）
听下面几段材料。
每段材料后有几个小题，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。
听每段材料前，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。
每段材料读两遍。
听下面一段对话，回答第6至第8小题。
6.What is the relationship between the speakers?
A.Former schoolmates.
B.Theater group members.
C.Close friends.
7.How often does the man practice for every show?
A.Once a month.
B.Once a week.
C.Twice a week.
8.What will the speakers do next?
A.Attend a dance party.
B.Have a meal.
C.See a film.
听下面一段对话，回答第9至第11小题。
9.Why does the woman think the man wants to talk to her?
A.She spends too much time at work.
B.She is mean to her assistants.
C.She has done something wrong.
10.When did the woman start working with the man?
A.Six years ago.
B.Two years ago.
C.Six months ago.
11.Where are the speakers now?
A.In the woman’s house.
B.At her son’s school.
C.In the office.
听下面一段独白，回答第12至第15小题。
12.What is the first prize in the photo competition?
A.A two-week holiday.
B.A500-pound camera.
C.Two plane tickets to Egypt.
13.What requirements do the photos need to meet?
A.They must be in color.
B.They must be taken on holidays.
C.They must show family life.
14.When can kids enter the sports competition?
A.In August.
B.In September.
C.In October.
15.What does the speaker remind the competitors to do?
A.Put their information down on the back of the photos.。