2020-3月份月考试卷
2020届长郡中学高三第3次月考试卷-理数答案
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2020年初一(下)厦门第六中学3月份月考考试试卷(无听力部分)
厦门六中2019-2020学年第二学期初一年U1-U4阶段考试英语I. 选择填空(共15小题；每小题1.5分，满分15分)16. My mother doesn’t want me to watch TV ________ school nights.A. inB. onC. at17. After class I always play soccer with my friends ________ an hour.A. inB. fromC. for18. — I’m ________ I’m late for school, Miss Hand.— Not at all. Please come to school on time next time.A. afraidB. happyC. sorry19. Kobe is good ________ playing basketball, ________ he plays basketball ________.A. with; so; goodB. for; but; wellC. at; and; well20. — Can the NPC (新冠) ________ from one person ________ another one?— Yes, it can.A. spread; toB. spreads; forC. to spread; of21. If you can ________, please join the ________ club.A. tell story; story-tellB. tell stories; story-tellingC. talk stories; story-talking22. My English teacher often helps ________ with ________ English.A. me; myB. I; meC. me; me23. — Excuse me, how long does it take to get to the Guangming Middle School?— About ________.A. 15 minutes walkB. 15 minutes’ walkC. 15 minute’s walk24. It usually ________ Jennifer about ten minutes to ride to school.A. spendsB. costsC. takes25. Jane and I are roommates. Either she ________ I clean the room in the morning.A. orB. andC. but26. Sorry, I can’t go out with you. I have ________ homework to do.A. a lotB. manyC. lots of27. Hey, boys! ________ leave your soccer balls in the sports club.A. NotB. Don’tC. No28. — Does your mother go to work by ________ car every day?— No, sometimes she takes ________ bus.A. /; theB. the; aC. a; a29. — ________?— Riding a bike.A. How does he go to workB. When does he go to workC. What time does he go to work30. — ________ is it from your home to your school?— About two kilometers.A. How oftenB. How longC. How farII. 完形填空(共6小题；每小题1.5分，满分7.5分)Cindy is on a trip to Italy. She is 31 herself very much. At the moment, she is taking a bus to the Leaning Tower of Pisa (比萨斜塔).When she gets off the bus, she gets a(n) 32 . It’s from her grandma in London. Grandma asks, “Cindy, are you having a good time?”“Yes, Grandma. Italy is such a beautiful country. Next, I’m going to visit the Leaning Tower of Pisa,” says Cindy.Grandma always thinks it’s 33 to eat well and she always eats healthy food. So she says, “Oh, dear, it’s not a good idea to eat only a pizza 34 breakfast. It’s not good for your health. You should also drink some milk.”Cindy can’t help laughing after 35 this. She says, “Oh, you mistake the word Pisa for pizza, Grandma. Pisa is a beautiful city in Italy. The Leaning Tower of Pisa is a building, not something to eat. It’s a great place for people to enjoy.”31. A. teaching B. enjoying C. asking32. A. call B. email C. game33. A. easy B. interesting C. important34. A. for B. with C. over35. A. reading B. seeing C. hearingIII. 阅读理解（每小题2分，共10分）AWelcome to our school! Here we have three clubs-food Club, Book Club and Sports Club. They are really interesting and you can find what you want here. Do you want to join them? Now let me introduce them to you one by one.Food ClubDo you like bread, salad or chicken? If you want to learn cooking, you should join us.Meet us on Sunday mornings from 9:30 to 12:00.If you have any question, please call 658-9047.Book ClubDo you like reading? If your answer is “Yes”, please come to our club.We usually meet from 2:00 to 4:00 in the afternoon.Telephone number: 825-4322Sports ClubYou want to play basketball, but you don’t have one? Don’t worry.We have many basket balls, volleyballs, soccer balls, tennis balls and all kinds of bats. So if you love sports, just come and practice with us.We meet from 9:00 am. to 4:00 pm. on Saturdays and Sundays.If you want to learn more, please call Mr Lee at 736-9269.36. If Alan is free from 3:00 to 4:00 on Friday afternoon, he can join ________.A. Food ClubB. Book ClubC. Sports Club37. You can’t get a ________ at Sports Club.A. basketballB. ping-pong ballC. soccer ball38. Which is RIGHT according to the passage?A. You can learn to cook fish at Food Club.B. If you don’t take your volleyball to Sports Club, you can’t play it there.C. Mr. Lee can tell you more about Sports Club.39. What’s the best title for the passage?A. Cooking Skills (技能).B. Reading Time.C. Interesting ClubsBIn Junior High School in America, kids study English, writing, math, science, biology, music and art.At 12 o’clock, the students eat lunch at school. They have meat, vegetables, fruit, bread and a drink, but they like hot dogs and hamburgers best. American kids like candy, and after lunch they can have a small piece of cake.Students sleep for a short time after lunch. They begin classes at 1:30 in the afternoon. They go to school on weekdays and have classes for six hours every day and then return home.The kids often play or watch TV until dinner at 6:00 p.m. After dinner, they do their homework. Sometimes kids and their parents have a family activity after dinner.40. In America, students go to school ________ days a week.A. 4B. 5C. 641. The American kids usually have dinner ________ in the evening.A. at five o’clockB. at six thirtyC. at six o’clock42. Which of the following is NOT TRUE?A. American students like candy.B. After lunch students sleep for a short time.C. The classes begin at 2:00 p.m.43. The best title (标题) for the passage (短文) is ________.A. Favorite foodB. Junior high schoolC. School life in AmericaCMy name is Lucy. I am an English girl. Now I’m a middle school student in No.8 Middle School in Beijing.My favorite subject is Chinese at school. It’s interesting, but it’s not easy to learn. I can’t speak it well or write the Chinese characters (汉字) well. Luckily (幸运地), I have a lot of Chinese friends here. They often help me with my study (学习) and life. Miss Lin, my Chinese teacher, is a kind and beautiful woman, and she teaches well. I really like her and her classes.I am very happy to study in China. But there is one thing I don’t like. Chinese students have too many rules at school. I think the students need more freedom. They need more time to do what they like.44. What does Lucy think of Chinese?A. It’s interesting and easy.B. It’s easy but boring.C. It’s interesting but difficult.45. What subject does Miss Lin teach?A. English.B. Math.C. Chinese.46. 划线单词“freedom”的汉语意思是________.A. 知识B. 自由C. 纪律47. What doesn’t Lucy like about her school life in China?A. There are too many rules at school.B. She has too much homework to do.C. She has no friends here.第二部分(非选择题)第二节阅读D篇短文，根据短文内容及要求完成各题。
内蒙古2020年高一下学期历史3月月考试卷A卷
内蒙古2020年高一下学期历史3月月考试卷A卷姓名:________ 班级:________ 成绩:________一、单选题 (共30题；共60分)1. （2分）(2017·连云港模拟) 明末清初，江南地区开始出现“棉争粮田”和“桑争稻田”的现象，大量原本种植粮食作物的土地被转而种植经济作物。
如，松江府、太仓州的耕地在总体上已经形成了稻田和棉田各占—半的格局，部分县的棉田面积超过了稻田面积。
这反映了当时（）A . 手工业发展阻碍农业生产B . 江南地区形成新的生产方式C . 经济重心转移到江南地区D . 商品经济发展影响粮食种植2. （2分） (2020高二下·哈尔滨期末) 白居易在《策林》中指出：“善为国者，不求非农桑之产，不重非衣食之货，不用计数之吏，不畜聚敛之臣。
闻榷管之谋，则思侵削于下，见羡徐之利，则念诛求于人。
然后德泽流而歌咏作矣！”这反映出白居易（）A . 开拓进取的经济主张B . 劝诫统治者应实施仁政C . 固守传统的经济思想D . 强调赋税改革的必要性3. （2分）图2到图1的变化，反映我国古代农业生产中A . 铁犁牛耕的出现B . 耕犁技术的成熟C . 精耕细作的开始D . 单位亩产量提高4. （2分） (2019高三下·汉中模拟) 下面是出土于河北邯郸的汉代铜酒樽及铭文摹本。
铭文是“建武二十三年径梦元47年），蜀郡西工造乘舆（帝王的车舆）大爵酒樽，内者室，铜工堂、金银涂章、文工循、造工业，护工卒史挥、长汇、守垂沉、椽习、令史惜主”。
据此可知，此铜酒樽（）A . 是农副业的产物B . 铭文字体为小篆C . 由官营作坊制造D . 适应了市场需求5. （2分） (2018高三上·上海期中) “水稻跃居全国粮食作物的首位”、“太湖流域成为全国的粮仓”、“牛转翻车”、“机户”，上述语句意在说明（）A . 原始农耕的产生B . 海上丝绸之路的活跃C . 经济中心南移的完成D . 康乾盛世的繁荣6. （2分） (2019高二上·湖州期末) “以诗证史”是史学研究常采用的方法之一。
云南省丽江市第一中学2020-2021学年高二下学期3月月考英语试题含答案
丽江市第一中学2020-2021学年高二3月月考英语试卷考试时间：120分钟满分：150分本试卷共分四个部分。
第一部分听力（共两节，满分30分）注意，听力部分答题时请先将答案标在试卷上，听力部分结束前你将有两分钟的时间将答案转涂到答题卡上。
第一节听下面5 段对话。
每段对话后有一个小题，从题中所给的三个选项中选出最佳选项，并标注在试卷的相应位置。
每段对话仅读一遍。
1.Whatarethespeakers probablydoing?A.Preparingfor campingB.BuyingsleepingbagsC.Cleaningup thecar2.Whatdoes themanwant to do?A.LookforapetstoreB.Buysomethingfor dogsC.Letthewoman takecareof hisdogs.3.Whatarethespeakers doing?A.TakingpicturesB.DoingexerciseC.Playinga video4.Whatdayisittoday?A.SundayB.SaturdayC.Friday5.Why does the woman want a laterappointment?A.Her flight was delayedB.Sheneedsto pickup someone.C.Shehas to takeher motherto thehospital.第二节听下面5段对话或独白，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。
每段对话或独白读两遍。
听下面一段对话，回答第6 和第7 题。
6.Whatareposted onthe wallof thecafeteria?A.Thefood pricesB.SomepicturesC.Theintroductionto thecafeteria.7.What will theman probablyhave?A.ChickenB.FishC.Noodles听下面一段对话，回答第8题和第9题8.Accordingto thewoman, what was thepartylikethisyear?A.ItwasveryrelaxingB.Itwastoowildandcrazy.C.Itendedupafailure.9.Whatcan welearn abouttheman?A.Hehasasecretarynamed Maggie.B.Hehad neverbeento an officepartybefore.C.Heworeablacksuittotheparty.听下面一段对话，回答第10 至12 题10.Whatis botheringthemanand hiswife?A.ThenoiseB.ThesizeoftheirroomC.Theserviceof theelevator11.What will theman do?A.Check outtodayB.WaitinthehotelC.Call the police12.Whatdidthe womanpromisetodo?A.RepairtheelevatorB.CutdownthepriceC.Givetheman asuite tomorrow听下面一段对话，回答第13 至第16题。
：湖北省武汉市青山区武钢实验学校2020-2021学年九年级下学期3月月考化学试题(解析版)
2020-2021学年武钢实验学校九年级3月月考化学试卷相对原子质量：H—1 C—12 O—16 S—32 Zn—65 Mg—24 Na—23 Ca—40第Ⅰ卷（选择题共24分）一、选择题（本题包括20小题，每小题只有1个正确选项。
每小题3分，共60分。
）1. 下列物质中属于纯净物．．．的是（）A. 盐酸B. 酒精C. 稀有气体D. 过氧化氢溶液【答案】B【解析】【分析】纯净物：只由一种物质组成，有专门的化学符号；混合物：由两种或两种以上物质混合而成的物质，不能用化学式表示。
【详解】A、盐酸是无色液体，为氯化氢的水溶液，属于混合物，故A错误；B、酒精是乙醇的俗称，是纯净物，故B正确；C、稀有气体是对氦、氖、氩、氪、氙、氡等几种气体的统称，所以，如果只说是稀有气体，没有特指其中某一种，应认定为混合物，故C错误；D、过氧化氢溶液含有水分子和过氧化氢分子，属于混合物，故D错误；故选B。
2. 下列实验操作正确．．的是（）A. 测定溶液pHB. 加热液体C. 稀释浓硫酸D. 称量氢氧化钠【答案】A【解析】【详解】A、用pH 试纸测定未知溶液的pH 时，正确的操作方法为用玻璃棒蘸取少量待测液滴在干燥的pH 试纸上，与标准比色卡对比来确定pH，图中所示操作正确；B、给试管中液体加热时，用酒精灯的外焰加热试管中的液体，且液体的体积不能超过试管容积的三分之一，图中所示操作错误；C、稀释浓硫酸时，要把浓硫酸缓缓地沿器壁注入水中，同时用玻璃棒不断搅拌，以使热量及时地扩散；一定不能把水注入浓硫酸中，图中所示操作错误；D、托盘天平的使用要遵循“左物右码”的原则，且氢氧化钠具有腐蚀性，不能放在滤纸上，应放在玻璃器皿中称量，图中所示操作错误；故选A。
【点睛】在测定未知溶液的pH 时，不能将pH 试纸伸入待测液中，以免污染待测液；稀释浓硫酸时，可以记住“酸入水、沿器壁、慢慢倒、不断搅。
”3. 下列化学用语正确．．的是（）A. 两个氖分子：2Ne2B. 铜单质中铜元素的化合价：+2CuC. 粒子结构示意图表示的粒子：S2-D. 两个铁离子：2Fe2+【答案】C【解析】【分析】【详解】A、氖气由原子构成，两个氖原子：2Ne，A错误。
广东北京师范大学珠海分校附属外国语学校2020-2022学年高一3月月考语文试题及答案 统编版高一
广东北京师范大学珠海分校附属外国语学校2020-2022学年高一3月月考语文试题及答案统编版高一必修上北师大珠海分校附属外国语学校2020-2022学年3月份月考高一年级语文试卷时间：150分钟满分：150分一、现代文阅读（一）阅读下面的文字，完成下面小题。
（19分）材料一：社会学研究的对象固然可以包括一切经营着集体生活的动物，但主要是人类的集体生活，人类的社会。
所以我们不妨说，社会学是一门研究人们经营共同生活的集体的学科。
“共同生活的集体”必须有一个大家都公认和公守的生活行为规范。
普通就叫“规矩”。
这些规矩哪儿来的呢？靠文化，靠人类社会传下来的那一套办法。
许多经营集体生活的动物，它们是依靠本能来配合它们相互间的行为的。
而人们却不同，主要是靠传下来的习俗，我们不是生长在自然界里，而是生长在一个文化界里。
社会是什么东西？它不是一个简单的临时形成的共同生活的集体，而是一个在历史过程中形成的有文化的集体。
它是很复杂的，它包含着满足个人生活和集体持续多方面需要的种种集体活动。
这个复杂的集体活动都并不是乱七八糟的，而是一套有系统的安排。
我们要去认识它，就要运用很多概念、格格、框框。
我们要对它进行分析－分而析之，分析其异同，把相同的东西放在一起，取一个名字，形成一个概念。
社会是个集体，这个集体是由个人组成的。
个人首先是个生物的单位。
个人作为一个生物的单位，它是个有生有死，有痛有痒的个体。
说它是个单位，是个个体，就是指它是与别的单位分开的，互相独立的，生死不与共，痛痒不相关的。
它们是各自独立的封闭的实体。
可是人们生活又需要集体，要同别人生死与共、痛痒相关。
这与一群羊不一样。
羊群在被狼追赶时，每只羊都自顾自地奔跑，有只羊被狼抓住，吃掉，别的羊就可以逍遥了，它们并不关心那死掉的羊。
而人却不然，要共同想法对付敌人，所谓同仇敌忾。
母亲爱孩子，自己不吃也要省下东西来给孩子吃。
我看这里固然有一点生物基础，但主要是集体的文化教育出来的感情。
2020-2021学年上海华二(紫竹)高三英语下学期3月考试卷及答案
2021华二（紫竹）高三英语下学期3月考试卷II. Grammar and Vocabulary (20分)Section ADirections: After reading the passage below, fill in the blanks to make the passage coherent and grammatically correct. For the blanks with a given word, fill in each blank with the proper form of the given word; for the other blanks, use one word that best fits each blank.Tweenbots are human-dependent cardboard robots that navigate the city with the help of pedestrians they encounter. Rolling at a constant speed, in a straight line, Tweenbots have a destination (21) (display) on a flag and rely on passer-by they come across to read this flag and to aim them in the right direction to reach their goal.I walked out to Washington Square Park on a sunny summer day, (22) (place) my first Tweenbot on the sidewalk, and walked away. From a distance, I observed as the Tweenbot––a smiling 10-inch tall cardboard missionary––bumped along towards his inevitable fate.It was incredible.(23) _______ a Tweenbot got caught under a park bench, ground repeatedly against a curb, or became trapped in a pothole, some passer-by would always rescue it and send it toward its goal. Never once (24) a Tweenbot lost or damaged. Often, people would ignore the instructions to aim the Tweenbot in the "right" direction, if that direction meant (25) (send) the robot into a dangerous situation. One man turned the robot back in the direction (26) _______ it had just come, saying out loud to the Tweenbot, "You can’t go that way, it’s toward the road."The Tweenbot’s unexpected presence in the city created an unfolding narrative that speaks to the power of a simple technological object (27) (create) a complex network powered by human intelligence and asynchronous(非同时发生的) interactions. The journey (28) take becomes a story of people's willingness to engage with a creature that mirrors human characteristics of being easily harmed, of being lost, and of having intention (29) the means of achieving its goal alone.(30) each encounter with an empathetic(有同感的) pedestrian takes a Tweenbot one step closer to reaching its destination, the significance of our random discoveries and individual actions builds up into a story about a vast space made small by an even smaller robot.Section B (10分)Directions: Complete the passage with the words in the box. Each word can only be used once. Note that there is one word more than you need.Narrowing the Gap between College Degrees and Practical Skills Getting a university degree has never seemed more important: college graduates earn more money, live longer, and are happier. But college degrees are expensive (especially in the US), 31 focused(especially in the UK), and often fail to build the skills employers want (true in most countries).A new university in the UK wants to change that.The London Interdisciplinary School (LIS), which will 32 . in 2021 with a target of 100 students, will scrap traditional academic subjects and offer a three-year bachelor of arts and sciences degree designed to 33 real-world issues. The 34 is built around interdisciplinary problems-knife crime, childhood obesity, palm oil in supply chains, plastic pollution----as well as quantitative and qualitative research skills. Employers like the Met Police, Innocent, and Virgin will provide project ideas and offer five-week work experience for students.The idea is similar to a US liberal arts degree (a rarity in the UK) but also more explicitly focused on "interdisciplinarity, "or drawing on 35 subjects-economics, psychology, sociology, statistics-to solve 36 problems like childhood obesity. In other words, the problem, not the subject, sits at the center of the curriculum. The skills students develop, the founders hope, will more closely agree with what an Al-infused, automated world demands: 37 between people and machines, critical thinking, speaking and writing skills, and data management, to name just a few things.Students will tackle problems through various disciplines: knife crime, for example, by understanding cultural and socioeconomic factors in different neighborhoods, data science, statistics, publicly 38 data, an economics or psychology lens.In the UK, students apply through a central clearinghouse, and exam results are of primary importance. At LIS, students will instead apply 39 and all will be invited to a"selection day" which will include a face-to-face interview so that LIS can understand a students' background，motivations, and passions. Interviews will be conducted by a panel to minimize bias. Conditional offers will be 40 based on personal background, circumstances and, also, grades.III. Reading Comprehension (45 分）Section ADirections: For each blank in the following passage there are four words or phrases marked A, B, C and D. Fill in each blank with the word of phrase that best fits the context.Reading award-winning literature may boost your ability to read other people, a new study suggests. Researchers at the New School for Social Research found that when they had volunteers read works of acclaimed(受到称赞的) “literary fiction”, it seemed to temporarily improve their ability to (41)________ other people's emotions. The same was not (42)________ of nonfiction or “popular" fiction, the mystery, romance and science fiction books that often dominate bestseller lists.Researchers (43)________ a series of five experiments which participants read either literary fiction, popular fiction, nonfiction or nothing at all before taking some standard tests. One of the tests is known as "Reading the Mind in the Eyes”. People have to look at photos of actors’ eyes, and then guess what emotion is being expressed in each. The test is considered a(n) (44)________ of empathy. Overall, study participants scored better after reading literary fiction, versus the other three (45)________.It was a(n) (46)________ improvement, according to the principal researcher David Comer Kidd, "It's not like taking people from a ‘C' to an ‘A' ," he said. But, Kidd added, the effect was seen after only about 10 minutes’ reading, and it was a statistically strong finding, mean ing it's unlikely to have been due to (47)________.What's so (48)________ about literary fiction? It's usually more focused on character than on plot. There is usually no single "dominant narrator" who takes readers through the story. It (49)________ that the readers should think about the characters and fill in the gaps. The author doesn't tell you what to think. Readers have to make (50)________ about characters. And that's often what people are doing in the real-life conversations."This is great study!" said Raymond Mar, an associate professor of psychology at York University, who was not involved in the new study. (51)________, he added that the overall research in this area is "still in its infancy" and one key question is whether literary fiction really (52)________ other types of fiction. So, it's too early to tell people to (53)________ their romance novel for Nobel literature, at least if the goal is boosting empathy.But it is (54)________ that the findings suggest literature is important beyond entertainment or improving vocabulary. “There’s a common belief that reading literature is frivolous(可笑的), or not practical,” Mar said. “But there's a growing body of evidence that it's important in (55)________ that we need in our lives.”41. A. evaluate B. manage C. spell D. interpret42. A. true B. successful C. critical D. compulsory43. A. participated in B. went through C. set up D. compared to44. A. tool B. measure C. standard D. source45. A. subjects B. books C. conditions D. studies46.A. moderate B. invaluable C. significant D. unnoticeable47. A. reading B. time C. mistake D. chance48. A. curious B. intense C. special D. professional49. A. demands B. reveals C. confesses D. favors50. A. contact B. inferences C. assumptions D. images51. A. Besides B. However C. Therefore D. Even52. A. outweighs B. challenges C. dominates D. reduces53. A. cling to B. trade in C. invest in D. wear out54. A. expected B. suspected C. criticized D. agreed55. A. conversations B. moods C. skills D. innovationsSection BDirections:Read the following three passages. Each passage is followed by several questions or unfinished statements. For each of them there are four choices marked A, B, C and D. Choose the one that fits best according to the information given in the passage you have just read.(A)There are few situations more unpleasant than a television presenter trying to hang on to a job. When one of the presenters of the BBC program Crimewatch resigned recently, rather than suffer the inevitable indignity of being unfinished and replaced by a younger version, he made the usual hurt noises about his masters’ overemphasis on youth. People in the media listened sympathetically before he slid from view to join the ranks of television’s has-beens.The presenter’s argument, that the viewers don’t care how old you are so long as you can “do the job,” unfortunately is not backed up by the evidence. When you're on TV, viewers are always thinking about whether you're losing your hair or your figure and, lately, whether you've had cosmetic work done. This is what they’re actually doing when you think they’re listening to the wise things you say. Viewers actually don't understand much of what the job involves, they just see you sitting there looking the part. Like the ability to pat one’s head while rubbing one's stomach, TV presenting is just one of those skills. Some of those who possess this skill can hit the big name. inevitablyas they become more attached to the lifestyle this brings, however, the more likely they are to overstate the skill.In reality，if somebody is paying you a lot of money to do a job，it's often on the tacit(心照不宣的)understanding that you may be fired suddenly---it's part of the deal. Unlike football managers, TV presenters pretend not to understand this. If they’ve had many years being paid silly sums to read a script from an autocue(自动题词机)，it's difficult for them to accept that they³ve been the beneficiary of good fortune rather than anything else; even harder to face the fact that an editor could all too easily send them to the shopping channels.Something similar eventually awaits all the people who are currently making fortunes that would have been unimaginable to earlier generations of presenters. One day we'll decide that their face no longer fits and they³ll be dragged away complaining about the same ageist policy from which they no doubt previously profited. Show business is a brutal(残忍的)business. The one thing it reliably punishes is age, particularly among women. That's why, at the age of fifty, female TV presenters become female radio presenters and why girl bands planning to re-form need to get it done before they're forty, after which it will get too hard for everyone to suspend their collective disbelief.56. What does the writer imply about the Crimewatch presenter he mentions in the first paragraph?A. He was unwise to resign when he did.B. He will soon be forgotten by the viewers.C. He may well have had a valid point to make.D. He was treated insensitively by his employers.57. The underlined pronoun “this" in paragraph 2 refers to .A. a public imageB. a level of successC. an overstatementD. a common misunderstanding58. Why does the writer mention football managers in paragraph 3?A. To support his view that presenters are overpaid.B. To stress how important luck is in certain occupations.C. To show how relatively secure TV presenters are in their jobs.D. To illustrate a general rule that applies to certain types of job.59. According to the writer, TV personalities who may worry about ageism .A. should look for work in other forms of broadcastingB. may have benefited from it themselves at some pointC. are less well respected than presenters of the pastD. are being unfair to up-and-coming younger colleagues(B)60.In Fabric &Styles, which item leaves you with the latest personal choice?A.FabricB. Fly StyleC. Pocket StyleD. Thread Color61.According to the passage, which of the following statements is True?A.The tailor will meet all the requirements on your jeans on condition that you state every detail clearly in your order.B.If the order with wrong measurements has already been processed, nothing can be done tofix the situation.C.Before payment. you'd better check your order in detail and can still make modifications ifnecessary.D. You will have to wash your jeans upon receipt, because they don't fit perfectly until theyshrink a little after washing.62. If you place an overseas order with full payments by PayPal on October 12, you will receiveyour jeans no later than______.A. Oct. 21B. Oct. 26C. Nov.16D.Nov.20（C）Students of United States history, seeking to identify the circumstances that encouraged the emergence of feminist(女权主义者) movements, have thoroughly investigated the mid-nineteenth-century American economic and social conditions that affected the status of women. These historians, however, have analyzed less fully the development of specifically feminist ideas and activities during the same period. Furthermore, the ideological origins of feminism in the United States have been obscured because, even when historians did take into account those feminist ideas and activities occurring within the United States, they failed to recognize that feminism was then a truly international movement actually centered in Europe. American feminist activists who have been described as “solitary” and “individual theorists” were in reality connected to a movement utopian socialism--which was already popularizing feminist ideas in Europe during the two decades that culminated(到达顶峰) in the first women’s rights conference held at Seneca Falls. New York, in 1848. Thus, a complete understanding of the origins and development of nineteenth-century feminism in the United States requires that the geographical focus be widened to include Europe and that the detailed study already made of social conditions be expanded to include the ideological development of feminism.The earliest and most popular of the utopian socialists were the Saint-Simonians. The specifically feminist part of Saint-Simoniamism has, however, been less studied than the group’s contribution to early socialism. This is regrettable on two counts. By 1832 feminism was the central concern of Saint-Simonianism and entirely absorbed itsadherents’ energy; hence, by ignoring its feminism. European historians have misunderstood Saint-Simonianism. Moreover, since many feminist ideas can be traced to Saint-Simonianism, European historians’ appreciation of later feminism in France and the United States remained limited.Saint-Simon's followers, many of whom were women, based their feminism on an interpretation of his project to reorganize the globe by replacing brute force with the rule of spiritual powers. The new world order would be ruled together by a male, to represent reflection, and a female, to represent sentiment. This complementarity reflects the fact that, while the Saint-Simonians did not reject the belief that there were innate differences between men and women, they nevertheless foresaw an equally important social and political role for both sexes in their Utopia.Only a few Saint-Simonians opposed a definition of sexual equality based on gender distinction. This minority believed that individuals of both sexes were born similar in capacity and character, and they owed male-female differences to socialization and education. The envisioned result of both currents of thought, however, was that women would enter public life in the new age and that sexual equality would reward men as well as women with an improved way of life.63. It can be inferred that the author considers those historians who describe early feminists in the United States as“solitary” to be______________.A. insufficiently familiar with the international origins of nineteenth-century American feminist thoughtB. overly concerned with the regional diversity of feminist ideas in the period before 1848C. not focused narrowly enough in their geo-graphical scopeD. insufficiently aware of the ideological consequence of the Seneca Falls conference64. According to the passage, which of the following is true of the Seneca Falls conference on women’s rights?A. It was primarily a product of nineteenth-century Saint-Simonian feminist thought.B. It was the work of American activists who were independent of feminists abroadC. It was the culminating achievement of the Utopian socialist movement.D. It was a manifestation of an international movement for social change and feminism65.It can be inferred from the passage that the author believes that study of Saint-Simonianism is necessary for.historians of American feminism because such study______________.A. would clarify the ideological origins of those feminist ideas that influenced American feminismB. would increase understanding of a movement that deeply influenced the Utopian socialism of early American.feministsC. would focus attention on the most important aspect of Saint-Simonian thought before 1832D. promises to offer insight into a movement that was a direct outgrowth of the Seneca Falls conference of 184866. According to the passage, which of the following would be the most accurate description of the society.envisioned by most Saint-Simonians?A. A society in which women were highly regarded for their extensive educationB. A society in which the two genders played complementary roles and had equal statusC. A society in which women did not enter public lifeD. A social order in which body of men and women would rule together on the basis of their spiritual power Section CDirections: Read the passage carefully. Fill in each blank with a proper sentence given in the box. Each sentence can be used only once. Note that there are two more sentences than you need.How to improve efficiency when working at home?Distinguish between work and home modeOne of the biggest merits about working from home - slowly moving from bed to the sofa five minutes before you start - can also be your biggest challenge, says Eyre-White.Don’t forget that you are there to work ——(67)______________ “Switch from home to work mode,” she says, by having something you physically do to “flip the switch”.“Maybe it’s walking round the block, making a special kind of tea, or lighting a candle at your desk. It doesn’t matter what it is but do it without fail to create a strong association in your mind,” she says.Be realistic about what you can achieve“A wide, open day working from home can feel full of possibilities. 145 things on the to do list? No problem! Don't fall into the trap of being over-ambitious," says Eyre-White. Instead, she recommends being realistic and then possibly achieving more than you set out to; and feeling satisfied, rather than feeling disappointed you didn't do everything.She suggests choosing three to five things to do and aim to get the majority done before lunch.“(68)______________” she recommends.Work in short burstsIn the office your day is broken up by everything from meetings to water-cooler chats, lunch breaks and even toilet breaks, but when you are sat at home on your own with no face-to-face interaction planned it can be easy to just work for long, unbroken periods.“(69)_____________ Although this can be frustrating, they divide the day up and create natural chunks of time,” explains Eyre-White. “In contrast, a day at home can be very unstructured.”In order to be productive, she recommends imposing stricture on yourself. For example, working in 45-60 minute chunks of focused work followed by a short break.” This can be an effective way to break the day up and maintain your concentration levels,” she says.Manage distractionsBeing in an office gives us a limited number of ways to get distracted but when you start working in a new environment (especially a very familiar one) it can be easy to let yourself get distracted.“(70)_________________” says Byre-White. “So proactively manage things which might interrupt your focus.” She explains: “Keep them limited to short breaks in between chunks of focused work. A change of scene is all we need to give our brain a break, and it’s the perfect time to put a load of washing on or empty the dishwasher.”V. TranslationDirections: Translate the following sentences into English, using the words given in the brackets.72.务必牢记：确保学校安全后才分期分批开学。
2020届上海市建平中学高三下学期英语3月月考试卷( Word版 )
建平中学高三下3月月考2020.3Ⅱ. Grammar and VocabularySection ADirections: Read the following passage. Fill in the blanks to make the passage coherent and grammatically correct. For the blanks with a given word, fill in each blank with the proper form of the given word. For the other blanks, use one word that best fits each blank.Cruz Genet, 11, and Anthony Skopick, 10, couldn’t agree. Were the birds out on the ice ducks or geese? There was only one way to find out.So on a chilly January evening last year, the two friends ventured（冒险）onto the frozen pond near their homes in Frankfort, Illinois, ___21___（get）a better look. First they cast a rock onto the ice to test it, then they stepped on it. ___22___（convince）the ice would hold their weight, Ant hony took a few steps, then… FOOMP. He crashed through the seemingly frozen surface. There was no sound, he just fell instantly.Cruz rushed to help his terrified friend. FOOMP—the pond swallowed him too. Cruz managed to lift ___23___ out of the frozen water and onto a more solid section. He then cautiously worked his way toward Anthony. But the ice ___24___（not hold），a nd he fell in again. This time, he couldn’t get out. The boys were up to their necks in icy water and quickly losing feeling in their limbs. There was not much chance ___25___ they could free themselves from the trouble. Cruz was sure he was going to die.Anthony’s older sister had seen the boys ___26___（fall）into the pond and started screaming for help. John Lavin, a neighbor driving nearby on his way to the grocery store, heard her. He quickly pulled over. Seeing the boys, he grabbed a nearby buoy（浮标），kicked off his shoes, and ran into the water, ___27___（chop）his way through the ice with free fist. Lavin made his way ___28___ Cruz and Anthony and pull them back to land. They were taken to the hospital, where doctors discovered that their five-minute stay in the water ___29___（lower）their body temperature nearly ten degrees.Fortunately, the boys have fully recovered, ___30___ they are still a little awestruck（惊叹的）by their fearless neighbor.“Just to think,”says Cruz,“I f he hadn’t been there, I would have died.”Section BDirections：Complete the following passage by using the words in the box. Each word can only be used once.American fashion from the ___31___ of Parisian design. Independence came in tying, wrapping, storing, and rationalizing that wardrobe. These designers established the modem dress code, letting playsuits and other active outfits suit casual clothing, allowing pants to enter the wardrobe, and prizing rationalism and utility in dress, in contradiction to dressing for an occasion. Fashion in America was logical and ___32___ to the will of the women who wore it. American fashion addressed a democracy, whereas traditional Paris-based fashion was prescriptive and imposed on women, willing or not.In an earlier time, American fashion had also followed the dictates of Paris, or even ___33___ specific French designs. Designer sportswear was not modeled on that of Europe, as “modem art” would later be; it was ___34___ invented and developed in America. Its designers were not high-end with supplementary lines. The design objective and the business commitment were targeted to sportswear, and the distinctive traits were problem-solving ingenuity（独创性）and realistic lifestyle applications. Ease of care was most important: summerdresses and outfits, in particular, were ___35___ cotton, readily capable of being washed and pressed at home. Closings were simple, practical, and ___36___, as the modem woman depended on no personal maid to dress her. American designers ___37___ the freedom of women who wore the clothing.Many have argued that the women designers of that time ___38___ their own clothing values into a new style. Of course, much of this argument in the 1930s-40s was advanced because there was little or no experience in designing clothes on the basis of utility. But could utility alone ___39___ the new ideas of the American designers? Fashion is often regarded as a pursuit of beauty, and some cherished fashion’s relationship to the fine arts. What the designers of the American sportswear proved was that fashion is a design art, answering to the demanding needs of service. Of course these practical, ___40___ designers have determined the course of late twentieth-century fashion. They were the pioneers of gender equity, in their useful, adaptable clothing, which was both made for the masses and capable of self-expression.Ⅲ. Reading comprehensionSection ADirections：For each blank in the following passages there are four words or phrases marked A, B, C, and D. Fill in each blank with the word or phrase that best fits the context.Face shape lets AI spot rare disordersPeople with genetic syndromes（综合症）sometimes have revealing facial features, but using them to make a quick and cheap diagnosis an be ___41___ given there are hundreds of possible conditions they may have. A new neural network that analyses photographs of faces can help doctors ___42___ the possibilities.Yaron Gurovich at biotechnology firm FDNA in Boston and his team built a neural network to look at the overall impression of faces and ___43___ a list of the 10 genetic syndromes a person is most likely to have.They ___44___ the neural network, called DeepGestalt, on 17,000 images correctly labelled to match more than 200 genetic syndromes. The team then asked the AI to ___45___ potential genetic disorders from a further 502 photos of people with such conditions. It included the correct answer among its list of 10 responses 91 per cent of the time.Gurovich and his team also ___46___ the neural network’s ability to distinguish between the different genetic mutations（变异）that can lead to the same syndrome. They used photographs of people with Noonan syndrome, which can result from mutations in any one of five genes. DeepGestalt correctly identified the genetic source of the physical appearance 64 per cent of the time. It’s clearly not ___47___, but it’s still much better than humans are at trying to do this.As the system makes its assessments, the facial regions that were most helpful in the determination are ___48___ and made available for doctors to view. This helps them to understand the relationships between genetic make-up and physical appearance.The fact that the diagnosis is based on a simple photograph raises questions about ___49___. If faces can reveal details about genetics, then employers and insurance providers could, in principle, ___50___ use such techniques to ___51___ against people who have a high probability of having certain disorders. ___52___, Gurovich says the tool will only be ___53___ for use by clinicians.This technique could bring significant ___54___ for those who have genetic syndromes. The real value here is that for some of these ultra-rare diseases, the process of diagnosis can be many, many years. This kind of technology can help narrow down the search space and then be confirmed through checking genetic markers. For some diseases, it will cut down the time to diagnosis dramatically. For others, it could perhaps add means of finding other people with the disease and, ___55___, help find new treatments or cures.41. A. convincing B. tricky C. reliable D. feasible42. A. bring about B. result from C. narrow down D. rule out43. A. return B. input C. top D. feed44. A. based B. imposed C. focused D. trained45. A. identify B. distinguish C. shift D. cure46. A. tested B. demonstrated C. recognized D. acquired47. A. acceptable B. perfect C. reliable D. workable48. A. covered B. excluded C. highlighted D. supervised49. A. objectivity B. accuracy C. credibility D. privacy50. A. legally B. habitually C. efficiently D. secretly51. A. discriminate B. fight C. argue D. vote52. A. Furthermore B. Therefore C. Otherwise D. However53. A. impossible B. available C. ready D. rare54. A. challenges B. benefits C. damages D. concerns55. A. by contrast B. in turn C. in addition D. on the contrarySection BDirections：Read the following three passages. Each passage is followed by several questions or unfinished statements. For each of them there are four choices marked A, B, C, and D. Choose the one that fits best according to the information given in the passage you have just read.（A）The two roadsIt was New Year’s night. An aged man was standing at a window. He raised his mournful eyes towards the deep blue sky, where the stars were floating like white lilies on the surface of a clear calm lake. When he cast them on the earth, where a few more hopeless people besides himself now moved towards their certain goal—the tomb. He had already passed sixty of the stages leading to it, and he had brought from his journey nothing but errors and regret. Now his health was poor, his mind vacant, his heart sorrowful, and his old age short of comforts.The days of his youth appeared like dreams before him, and he recalled the serious moment when his father placed him at the entrance of the two roads—one leading to a peaceful, sunny place, covered with flowers, fruits and resounding with soft, sweet songs; the other leading to a deep, dark cave, which was endless, where poison flowed instead of water and where devils and poisonous snakes hissed and crawled.He looked towards the sky and cried painfully, "Oh youth, return! Oh my father, place me once more at the entrance to life, and I'll choose the better way!" But both his father and the days of his youth had passed away.He saw the lights flowing away in the darkness. These were the days of his wasted life; he saw a star fall from the sky and disappeared, and this was the symbol of himself. His regret, which was like a sharp arrow, struck deeply into his heart. Then he remembered his friends in his childhood, who entered on life together with him. But they had made their way to success and were now honored and happy on this New Year's night.The clock in the high church tower struck and the sound made him remember his parents' early love for him. They had taught him and prayed to God for his good. But he chose the wrong way. With shame and grief he dared no longer look towards that heaven where his father lived. His darkened eyes were full of tears, and with a despairing effort, he burst out a cry: "Come back, my early days! Come back!"And his youth did return, for all this was only a dream, which he had on New Year's Night. He was still young though his faults were real; he had not yet entered the deep, dark cave, and he was still free to walk on the roadwhich leads to the peaceful and sunny land.Those who still linger on the entrance of life, hesitating to choose the bright road, remember that when years are passed and your feet stumble on the dark mountains, you will cry bitterly, but in vain. "O youth, return! Oh give me back my early days!"56. In the 3rd paragraph, the man cried painfully because ___.A. all the hopeless people were moving towards deathB. he had lost forever the chance to take the right roadC. His parents and the happy days of his youth were goneD. he refused to take the toad leading to a deep dark cave57. What happened to the man before his sudden realization?A. He was at his father’s fune ral farewell.B. He was enjoying the New Year’s eve.C. He was wandering at the entrance to life.D. He was having a dream of his life in old age.58. We can infer from the story that ___.A. the man’s childhood friends led a joyful life like himB. the man still had the opportunity to chose the right wayC. both the man’s parents passed away when he was youngD. the man’s father was quite strict with his son before death59. The passage is mainly written for ____.A. a new driver getting lost on a detourB. a concerned mother with two children to raiseC. an experienced teacher with a good reputationD. a hesitating young adult facing a tough life choice（B）“Buffalo buffalo Buffalo buffalo buffalo buffalo Buffalo buffalo”is a real sentence.How?Let’s break it down, starting with a simple phrase:Monkeys from Pisa bully deer from London.OK, admittedly it’s an implausible scenario, but it’s a grammatically fine sentence. In English we can use place names as adjectives, so let’s shorten the sentence a little.Pisa monkeys bully London deer.Now we’ll throw in some giraffes from Paris to even the score with those mean monkeys.Pisa monkeys, whom Paris giraffes intimidate, bully London deer.English is peculiar in that you can omit relative pronouns, e.g.,“the person whom I love”can be expressed as “the person I love.”L et’s do that to this sentence.Pisa monkeys Paris giraffes intimidate bully London deer.This kind of pronoun removal can be a little more difficult to grasp when written than when spoken. Saying the above sentences with pauses after monkeys and intimidate can help. Now we need to replace both of the verbs, intimidate and bully, with their（admittedly uncommon）synonym, buffalo.Pisa monkeys Paris giraffes buffalo buffalo London deer.A gain, pauses help keep the meaning in mind: Put a pause after monkeys and the first buffalo. Now we’ll replace all the worldwide place names with the second-largest city in New York State, Buffalo.（T hat’s Buffalo’s tallest building, One Seneca Tower, below.）Buffalo monkeys Buffalo giraffes buffalo buffalo Buffalo deer.You can probably guess what the next step is. But before we replace all the animals with the common name for the American bison, note how the capital letters in the above sentence help you keep the place names separate from the other usages of the word. OK, here goes:Buffalo buffalo Buffalo buffalo buffalo buffalo Buffalo buffalo.One last thing to note: This exceptional sentence is possible because the plural of the animal buffalo is buffalo, not buffalos, otherwise all the words wouldn’t be identical.English is strange and wonderful!60. How should we read the following sentence with proper pauses?A. Buffalo buffalo Buffalo / buffalo buffalo / buffalo Buffalo buffalo.B. Buffalo buffalo / Buffalo buffalo buffalo / buffalo Buffalo buffalo.C. Buffalo buffalo Buffalo / buffalo buffalo buffalo / Buffalo buffalo.D. Buffalo buffalo / Buffalo buffalo / buffalo buffalo Buffalo buffalo.61. What is the key element to make this sentence possible?A. The relative pronouns in English can be omitted.B. In English, place names can be used as adjectives.C. The city has the same name with a kind of American bison.D. The word buffalo has the same form of singular and plural.62. Where can you probably find this article?A. Wandering the EarthB. Linguistics Around UsC. Popular Animal ScienceD. Collins English Grammar（C）The idea that richer countries are happier may seem intuitively obvious. However, in 1974, research by economist Richard Easterlin found otherwise. He discovered that while individuals with higher incomes were more likely to be happy, this did not hold at a national level. In the United States, for example, average income per person rose steadily between 1946 and 1970, but reported happiness levels showed no positive long-term trend; in fact, they declined between 1060 and 1970. These differences between nation-level and individual results gave rise to the term“Easterlin paradox”: the idea that a higher rate of economic growth does not result in higher average long-term happiness.Having access to additional income seems to only provide a temporary surge in happiness. Since a certain minimum income is needed for basic necessities, it’s possible that the happiness boost from extra cash isn’t that great once you rise above the poverty line. This would explain Easterlin’s findings in the United States and other developed countries. He argued that life satisfaction does rise with average incomes—but only in the short term. Recent research has challenged the Eastern paradox, however. In 2013, sociologists Ruut Veenhoven and Floris Vergunst conducted a study using statistics from the World Database of Happiness. Their analysis revealed a positive correlation between economic growth and happiness. Another study by the University of Michigan found that there is no maximum wealth threshold at which more money ceases to contribute to your happiness:“If there is a satiation point, we are yet to reach it.”T he study’s findin gs suggested that every extra dollar you earn makes you happier. With so much debate about the relationship between money and happiness, it’s clear that happiness itself is a complex concept and depends on many factors.According to psychologists Selin Kesebir and Shigehiro Oishi, happiness also depends on how your income compares to the people around you. They argue that a country’s economic growth only makes its citizens happier if wealth is evenly distributed. In emerging countries with high income inequality—where the rich get richer and the poor get poorer—average happiness tends to drop because only relatively few people benefit from the economic prosperity. This suggests that governments should consider implementing policies to ensure more equal distribution of wealth. The happier people are, the more productive they are likely to become, thus leading to improved economic outcomes at the individual and national levels.There is continuing debate about the link between wealth and happiness, with arguments both for and against the notion that richer countries are happier. However, it is clear that wealth alone isn’t enough to make us happy. The effect of income inequality on happiness shows that happiness is a societal responsibility. We need to remember the positive effects of generosity, altruism, and building social connections. Perhaps our focus should be less on how much money we have, and more on how we use it.63. According to the passage, Easterlin Paradox refers to ____.A. the fact that the more money, the happier people will feelB. the suggestion that money should be given the top priorityC. the question how economic outcomes are distributed nationwideD. the opinion that higher income doesn’t necessarily generate happiness64. The word“satiation”in paragraph 3 is closest in meaning to“__”.A. satisfactionB. controversialC. centralD. sensitive65. What is the major reason for people’s unhappiness related to money?A. Money not enoughB. Money not fairly distributedC. Rich people richerD. Unequal money paid for equal work66. Which of the following might be best title of this passage?A. It’s all relativeB. Easterlin paradoxC. The economics of happinessD. Rising income, rising happinessSection CDirections：Read the passage carefully. Fill in each blank with a proper sentence given in the box. Each sentenceTrue intelligenceTaking charge of yourself involves putting to test some very popular myths. At the top of the list is the notion that intelligence is measured by your ability to solve complex problems; to read, write and compute at certain levels; and to resolve abstract equations quickly. ___67___ It encourages a kind of intellectual prejudice that has brought with it some discouraging results. We have come to believe that someone who has more educational merit badges, who is very good at some form of school discipline is "intelligent. " Yet mental hospitals are filled with patients who have all of the properly lettered certificates. A truer indicator of intelligence is an effective, happy life lived each day and each present moment of every day. ___68___Problem solving is a useful help to your happiness, but if you know that given your inability to resolve a particular concern you can still choose happiness for yourself, or at a minimum refuse to choose unhappiness, then you are intelligent. You are intelligent because you have the ultimate weapon against the big N.B.D.—Nervous Break Down.“Intelligent”do not have N. B. D. ’s because they are in charge of themselves. ___69___You can begin to think of yourself as truly intelligent on the basis of how you choose to feel in the face of trying circumstances. The life struggles are pretty much the same for each of us. Everyone who is involved with other human beings in any social context has similar difficulties. Disagreements, conflicts and compromises are a part of what it means to be human. ___70___ But some people are able to make it, to avoid immobilizing depression and unhappiness despite such occurrences, while others collapse or have an N. B. D. Those who recognize problems as a human condition and don’t measure happiness by an absence of problems are the most intelligent kind of humans we know; also, the most rare.Ⅳ. Summary writingDirections：Read the following passage. Summarize the main idea and the main point(s) of the passage in no more than 60 words. Use your own words as far as possible.Blowing a Few TopsEver stopped to consider the upside of volcanic eruptions? It’s not all death, destruction and hot liquidrock—scientists have a plan to cool the planet by simulating one such eruption.Solar geoengineering involves simulating a volcano by spraying aerosols（气溶胶）into the atmosphere. When they combine with oxygen, droplets of sulfuric acid（硫酸）form. These droplets reflect sunlight away from Earth, cooling the planet. All good in theory, but the consequences are largely unknown and a few could be disastrous. In a study recently published in Nature Communications, researchers led by Anthony Jones, a climate scientist from the University of Exeter, found that using this technology in the Northern Hemisphere could reduce the number of tropical winds hitting the U.S. and Caribbean. But there’s an annoying exchang e: more winds in the Southern Hemisphere and a drought across the Sahel region of Africa. That’s because the entire climate system is linked—disrupting one region will invariably affect another. How would a nation react if another was causing its weather to get much worse? Would that be an act of war?There is, however, a case for using solar geoengineering on a global scale. Jones says it could be used to“take the edge off”the temperature increases scientists are predicting. It could be used while the world searches for more effective strategies.The study also highlights a far bigger problem with solar geoengineering: its complete lack of regulation.“T here’s nothing that could stop one country just doing it,”Jones says.“You only need about 100 aircraft with three flights per day. It would cost $1 billion to $10 billion per year.”He adds,“I t’s deeply disturbing that we have this technology that could have such a massive influence on the climate, yet there’s just no regulation to stop countries or even organizations from doing it.”Jones cautions that there is much about the climate system we do not understand, as well as far more that will need to be done before solar geoengineering is considered safe—or too dangerous to even discuss.V. TranslationsDirections：Translate the following sentences into English, using the words given in the brackets.72. 建议老年人晚上不要喝浓茶，以免睡不着。
2020-2021学年山东省德州市宁津县杜集镇四年级(下)第一次月考语文试卷(3月份)
2020-2021学年山东省德州市宁津县杜集镇四年级（下）第一次月考语文试卷（3月份）试题数：13，总分：1001.（填空题，8分）看拼音，写词语。
周六，爸爸带我们去一家农家乐游玩。
这家农家乐环境十分幽静。
wū yán___ 上挂着红红的灯笼，院子里长着芍药、fèng xiān___ 等花，蜜蜂、qīng tíng___ 飞来飞去，不远的hé tān___ 上，用lí ba___ 围着，养了一些鸡shū cài___ 和鸭。
中午，主人用新鲜的鸡、鱼等给我们准备了丰盛的wǔ cān___ ，他说：“我们这些都是绿色食品，保证大家吃得jiàn kāng___ 、放心。
”2.（单选题，1分）下列词语注音错误的一项是（）。
A.蝙蝠（biān fú）B.倘若（tǎng ruò）C.闪烁（shǎn shuò）D.半晌（bàn xiǎng）3.（单选题，1分）下列词语中有错别字的一项是（）A.慰藉B.装饰C.栽人航天D.阔达4.（单选题，1分）下列词语中搭配最恰当的一项是（）A.改善生活B.提高知识C.发挥优点D.端正习惯5.（单选题，1分）填入下面句子中的关联词，最恰当的一项是（）。
（）附近的石头上有妇女在捣衣，它们（）从不吃惊。
A.因为……所以……B.不但……而且……C.即使……也……D.虽然……但是……6.（填空题，6分）根据拼音写同音字。
jí___ 病___ 祥___ 格___ 忙shì装___ 战___ 拂___ ___ 死如归zhī松___ ___ 体___ 援无所不___7.（问答题，6分）按要求写句子。
（1）晌午的太阳热辣辣地照射着整个树林。
（缩句）___（2）许多鲜嫩的笋，成群地从土里长出来。
（改为拟人句）___（3）我们的衣食住行都会有纳米技术的影子。
（改为反问句）___8.（填空题，12分）积累填空。
湖北省黄梅国际育才高级中学2020-2021学年高二下学期3月月考英语试卷.Word版含答案
高二3月月考英语试题（试卷满分 150分，考试时间120分钟）注意事项：1．答卷前，考生务必将自己的姓名、准考证号填写在答题卡上。
2．回答选择题时，选出每小题答案后，用铅笔把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。
回答非选择题时，将答案写在答题卡上，写在本试卷上无效。
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 does the man suggest the woman do?A. Buy less expensive food.B. Have meals at the university.C. Cook simple dishes.2. What does the man imply?A. The handbag has been sold out.B. The woman can take the sample.C. The show will begin soon.3. How long can the man keep the books?A. One week.B. Two weeks.C. Three weeks.4. Where did the man spend his holiday?A. In a gym.B. At the seaside.C. In an indoor pool.5. What are the speakers talking about?A. A robbery.B. A new store.C. A neighbor.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。
2020-2021学年山东省德州市宁津县杜集镇五年级(下)第一次月考语文试卷(3月份)
2020-2021学年山东省德州市宁津县杜集镇五年级（下）第一次月考语文试卷（3月份）试题数：11，总分：1001.（问答题，3分）抄写生字，要把字写紧凑。
妒___ 诡___ 逛___2.（问答题，4分）匹配横线词正确读音，连一连。
稚子yī涟漪zhì倭瓜qǐng点缀dū澄澈wō碧波万顷zhuì毛嘟嘟chéng chè游子吟yín纨绔kù3.（填空题，4分）为带点字选择正确的读音，填在横线上。
燕．国（yān yàn）___ 涟漪．（yī yì）___ 供．货（gōng gòng）___ 秉．持（bǐng bǐn）___ 蚌．壳（fēng bàng）___ 倭．瓜（wěi wō）___晃．眼（huǎng huàng）___ 点缀．（zhuì chuò）___4.（填空题，6分）补全下列词语，并给加线字选择正确的解释。
（填序号）（1）___ 胜数，此中数的正确解释是___ 。
① 查点，逐个说出② 列举③ 数目（2）___ 大悟，此中悟的正确解释是___ 。
① 了解，领会② 见面③ 感觉5.（填空题，7分）积累填空。
（1）《水浒传》是我国古代著名的长篇小说，作者是元末明初的___ 。
我知道里面著名的故事：___ 、___ 。
（2）___ （填一本名著）是中国古代神话小说，是中国“四大名著”之一。
书中的主要人物是唐僧、孙悟空、猪八戒、沙僧，其中___ 等故事更是妇孺皆知，耳熟能详。
（3）人闲桂花落，___ 。
6.（填空题，6分）补足古诗并填空。
游子吟___ ，游子身上衣。
临行密密缝，___ 。
谁言寸草心，___ 。
这首诗中千古流传的经典诗句是___ ，___ 。
表达了作者___ 的思想感情。
7.（问答题，6分）按要求完成句子。
（1）这清白的梅花，是能玷污的吗？（改成陈述句）___（2）老人总是摇摇头，长长地叹一口气，说：“你还小呢，不懂！”（用横线上的句子造句）___（3）我并不细看，不过马马虎虎随随便便承认下来就是了。
湖南省永州市耀祥中学2020-2021学年高二下学期3月月考英语试卷含答案
湖南省永州市耀祥中学2020-2021学年度高二第二学期3月月考试卷英语科满分共120分考试时间120分钟第一部分阅读理解（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。
ALike many, I felt pressure from my parents and teachers to go to university and study something academic. With top grades I received at the end of high school, I was almost able to enter any course of my pick. Yet the thought of spending the next few years facing the four walls of a classroom caused a lump(肿块) in my throat.After a year majoring in photography at university, which was not just what I expected, I made the decision to take a break and go on a gap year. In fact, I gained more knowledge in the real world in four months than I did from my entire schooling, but most importantly, I learnt so much about myself.One day, my posted photos were noticed by Topdeck Travel, and they asked if they could use some of my travel pictures for their posters. This really was the beginning of my career. I began developing my relationship with Topdeck Travel, and before long, I got my first paid travelling overseas to take photographs.Soon I reached the point where I had to make a decision—either to play it safe, go back to university and settle down like everyone else, or to follow my heart and go my own way—a path with an uncertain future. I chose the latter, and it was the scariest and best decision I have ever made.Five years after leaving school, I might not have a university degree, a well-paid job, a husband or a house with a white fence. Instead, I'm sitting at my office, with a cafe by a beach at Goa, India. As I stare past my laptop screen at the sun setting beyond the waves, a salty breeze touches my face.To me, success is about pursuing my dreams and creating my own path instead of trying to follow someone else's. Somehow, I feel like my life is exactly where it is meant to be.1.What did the author think of going to university?A.She took it seriously.B.She showed little interest.C.She looked forward to it.D.She thought it was a must.2.What benefit did the author gain from her gap year?A.The knowledge about the real world.B.Her paid overseas travel experience.C.Realising what she really wanted in her life.D.Knowing what really mattered at university.3.What can we infer about the author from the passage?A.She regrets not going back to university.B.She gets less knowledge in the real world.C.She feels quite satisfied with her present life.D.She misses the days working for Topdeck Travel.BA new report connects eating eggs to an increased risk of heart disease. The results follow several earlier studies that found eating eggs was generally healthy. The study collects data from six other earlier studies. It shows a 6 percent increased risk of heart disease when the number of eggs a person ate each day increased by half an egg.Norrina Allen, an associate professor at Northwestern University said that, in the United States, eggs are generally one of the top sources of cholesterol(胆固醇) in a person’s daily food. People with higher levels of cholesterol in their food are at increased risk of the development of heart disease later in life. However, Allen added that she would not say that eggs are completely unhealthy. “I’m not saying that people should take them completely out of their food,” she said. “I’m just suggesting that people eat them in a proper amount.”Some experts believe the new study does not prove that eggs are causing heart disease. “Cholesterol’s role in the development of heart disease has been discussed for more than 30 years,” said Bruemmer, an associate professor of medicine at the University of Pittsburgh Medical Center.“This study does have clear shortcomings, including self-reporting at a single time point,” he added.Bruemmer said, “Eggs in moderation (适度) are probably acceptable from a nutritional standpoint.” “Moderation,” he added, “is less than one egg a day, including eggs in foods such as bread”.Holly Andersen, a doctor at the NewYork-Presbyterian/Weill Cornell Medical Center, agrees that the study has “real shortcomings”. On e problem Andersen has with the study is that a lot of the egg-eating people in the study also appeared to be eating much meat and processed meat. “If you’re taking a lot of processed meat, it doesn’t matter how many eggs you’re eating,” Andersen said.Als o, Andersen said, “The study can only show there is a relation between eggs eating and heart disease. But it cannot prove eggs are the cause of the disease. It may just be that people eating a lot of eggs are also taking a lot of bacon.”4.What does Norrina Allen agree with?A.Eggs are completely unhealthy.B.Eggs should be eaten in a right amount.C.Eggs contain the most cholesterol.D.Eggs have no connection with heart disease.5.What is Bruemmer’s attitude towards thestudy?A.Interested.B.Concerned.C.Doubtful.D.Hopeful.6.What can we learn from Holly Andersen’s words?A.Processed meat may cause heart disease.B.Eggs and meat cannot be eaten together.C.Processed meat should be avoided.D.The study is supported by evidence.7.What’s the best title of the text?A.Are eggs the top source of cholesterol?B.Do eggs cause heartdisease?C.What’s the proper amount of eggs eaten?D.Is the cholesterol to blame for heart disease?CJournalists are the major group of people who make their living from writing. Many young people who see themselves as future novelists choose journalism as a way of earning a living while developing their writing skills. Although writing for newspapers and writing for books require different qualities, the aspiration (志向) to be a great writer is not one to be discouraged in a would-be journalist.Most people want their work to be recognized by others. This helps to give it value. Some people also want themselves to be recognized, so that they have status (地位) in the eyes of society. It is not a bad motive to wish to be famous, but this must never become your main reason for being a journalist. You will not be a good journalist if you care more for impressing your audience than for serving their needs.Knowing the power of the printed or spoken word or image, some people enter journalism for the power it will give them to influence people. There is a strong belief that journalists control the mass media but the best journalists recognize their role as servants of the people. There is a difference between the desire to influence events for your own sake, and the desire to do it for other people. You should never use journalism for selfish ends, but you can use it to improve the life of other people.Curiosity is a natural part of most people’s characters and a n important ingredient for any journalist. Lots of young men and women enter the profession with the desire to know more about the world without needing to specialize in limited fields of study. Most journalists tend to know a little bit about a lot of things, rather than a lot about one subject. Knowledge has many uses. It can simply help to make you a fuller and more interesting person. It can also give you power over people, especially people who do not have that particular knowledge. Always bear in mind that power can be used in a positive way to improve people’s lives.8.What can we know from the first paragraph?A.Journalists are most likely to become great writers.B.Writing for newspapers is similar to writing for novels.C.Most of the journalists make a living by writing books.D.Journalism can be used as a means to improve writing.9.Why do some people want themselves to be recognized?A.To gain high position.B.To get great power.C.To earn much wealth.D.To learn rich knowledge.10.What is most necessary for journalists according to Paragraph 4?A.Being specialized in a certain field.B.Having a wide range of knowledge.C.Being good at making friends with others.D.Being able to speak a foreign language well.11.What does the text mainly talk about?A.The development of journalism.B.The challenges journalists face now.C.How to become a qualified journalist.D.Why people choose a career in journalism.DA clever technologist took steamboat inventions and turned them into the first commercial steamboat service.Although Robert Fulton did not invent the steamboat, as is commonly believed, he played an important role in making steamboat travel a reality. He was born in Pennsylvania in 1765. As a young man, he set out to make his name as a portrait painter. His career took him to Europe and into the orbit of people with the power to support him politically and financially.Fulton entered London society after he painted Benjamin Franklin’s portrait. While abroad, Fulton left the arts for a career in shipbuilding. He was interested in the recently-invented steam engine, and thought it could be used to power ships. Fulton’s vision was not original; many others had entered the field, and the unfortunate inventor John Fitch had built a working steamship already. But like Henry F ord, Fulton’s talent lay not in the invention but in the product’s application in the marketplace.Fulton didn’t focus entirely on the steamboat. In 1804, he tested the first submarine successfully, which he had built for the British Royal Navy. His invention would make him a celebrity upon his return to the United States two years later. Fulton’s partner Robert Livingston obtained an exclusive license for steamboat services on New York’s Hudson River. It was time for Fulton to deliver.To build an efficient, reliable steamboat, Fulton used a special English steam engine. The ship’s bottom was flat and its stern was square. The steamboat Clermont made its debut (首次亮相) on August 17, 1807, steaming up the river from New York to Albany, and it soon entered commercial services. The hilly terrain of New York made water transport faster than land transport, and Fulton’s boat —formerly known as the “North River Steamboat” — was a hit. Within five years, Fulton would be running services on six major rivers plus the Chesapeake Bay, and bring in great profits.12.What can be inferred from Paragraph 3?A.Henry Ford was as unfortunate as JohnFitch.B.Henry Ford was talented in product application.C.Fulton left the arts as he couldn’t support himself.D.Fulton was the first to create a working steamship.13.When did Fulton becomea celebrity in the United States?A.In 1804.B.In 1806.C.In 1807.D.In 1812.14.What is mentioned about Clermont?A.It operated for five years.B.It earned Fault much money.C.It had an American steam engine.D.It was not accepted by people at first.15.What’s the best title of the text?A.Robert Fulton and his SteamboatB.Robert Fulton: A Great InventorC.Steamboats Changing Water TransportD.The History of Commercial Steamboats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。
福建省厦门外国语学校2020-2021学年七年级下学期月考数学试卷(3月份)解析版
福建省厦门外国语学校2020-2021学年七年级下学期月考数学试卷（3月份）解析版一.选择题（共10小题）1．下列各组图形，可以经过平移变换由一个图形得到另一个图形的是（）A．B．C．D．2．如图，直线a，b被c所截，则∠1的内错角是（）A．∠2B．∠3C．∠4D．∠53．如图，直线l与直线a，b相交，且a∥b，∠1＝110°，则∠2的度数是（）A．20°B．70°C．90°D．110°4．下面4个图形中，∠1与∠2是对顶角的是（）A．B．C．D．5．如图，三角形ABC中，∠ACB＝90°，CD⊥AB于点D，则下列说法错误的是（）A．点A到直线BC的距离为线段AB的长度B．点A到直线CD的距离为线段AD的长度C．点B到直线AC的距离为线段BC的长度D．点C到直线AB的距离为线段CD的长度6．下列命题是真命题的是（）A．同位角相等B．两个锐角的和是锐角C．如果一个数能被4整除，那么它能被2整除D．相等的角是对顶角7．实数1﹣2a有平方根，则a可以取的值为（）A．B．1C．D．π8．9的平方根是±3，用下列式子表示正确的是（）A．±＝3B．＝±3C．±＝±3D．＝39．关于“”，下列说法不正确的是（）A．它是一个无理数B．它可以用数轴上的一个点来表示C．它可以表示面积为19的正方形的边长D．若n＜＜n+1（n为整数），则n＝510．已知min{，x2，x}表示取三个数中最小的那个数，例如：当x＝9，min{，x2，x}＝min{，92，9}＝3．当min{，x2，x}＝时，则x的值为（）A．B．C．D．二.填空题（共6小题）11．计算化简：（1）＝；（2）＝；（3）（）2＝；（4）＝；（5）（﹣2）＝；（6）|﹣3|＝．12．如图是一把剪刀，若∠AOB+∠COD＝60°，则∠BOD＝°．13．的算术平方根是．﹣的相反数是．化简：＝．14．把下列命题写成“如果…那么…”的形式：“两直线平行，同位角相等”，改写：．15．如表所示，被开方数a的小数点位置移动和它的算术平方根的小数点位置移动规律符合一定的规律，若＝180，且＝﹣1.8，则被开方数a的值为．a…0.0000010.011100100001000000……0.0010.11101001000…16．我国著名的数学家华罗庚曾巧解开立方的智力题：问题：59319是一个整数的立方，求这个整数？解答：因为：10＜＜100，所以：是两位整数；因为：整数59319的末位上的数字是9，而整数0～9的立方中，只有93＝729的末位数字是9，所以：的末位数字是9；又因为划去59319的后面三位319得到59，而3＜＜4，所以的十位数字是3；因此＝39．应用：已知2（2x﹣2）3+221184＝0，其中x是整数．则x的值为．三.解答题（共9小题）17．（1）计算：4÷2×（﹣3）﹣（﹣9）；（2）计算：x+（2x﹣2）﹣（3x+5）；（3）计算：；（4）解方程：5y+9＝3y﹣1．18．已知：如图，直线AB与CD被EF所截，∠1＝∠2，求证：AB∥CD．19．完成下面的证明：如图，点D、E、F分别是三角形ABC的边BC，CA，AB上的点，DE∥BA，∠FDE＝∠A．求证：DF∥CA．证明：∵DE∥AB（已知）∴∠BFD＝（）∵∠FDE＝∠A（已知）∴∠A＝（等量代换）∴DF∥CA（）．20．如图，已知直线AB，CD相交于点O．（1）读下列语句，并画出图形：点P是直线AB，CD外的一点，直线EF经过点P且与直线AB平行，与直线CD相交于点E；（2）请写出第（1）小题图中所有与∠COB相等的角．21．如图，△ABC的三个顶点A、B、C在正方形网格中，每小方格的边长都为1cm．请在方格纸上面图并回答问题：（1）延长线段AB到点D，使BD＝AB；（2）过C点作AB的垂线，垂足为点E；（3）过A点画AF∥BC，交直线CE于点F；（4）△ABC的面积为cm2．22．小辰想用一块面积为100cm2的正方形纸片，沿着边的方向裁出一块面积为90cm2的长方形纸片，使它的长宽之比为5：3．小辰能否用这张正方形纸片裁出符合要求的纸片？若能请写出具体栽法；若不能，请说明理由．23．阅读下面的文字，解答问题．大家知道是无理数，而无理数是无限不循环小数，因此的小数部分我们不可能全部地写出来，于是小明用﹣1来表示的小数部分，你同意小明的表示方法吗？事实上，小明的表示方法是有道理，因为的整数部分是1，将这个数减去其整数部分，差就是小数部分．请解答：（1）若的整数部分为a，小数部分为b，求a2+b﹣的值．（2）已知：10+＝x+y，其中x是整数，且0＜y＜1，求x﹣y的值．24．如图1，点E在四边形ABCD的边BA的延长线上，CE与AD交于点F，∠DCE＝∠AEF，∠B＝∠D．（1）求证：AD∥BC；（2）如图2，若点P在线段BC上，点Q在线段BP上，且∠FQP＝∠QFP，FM平分∠EFP，试探究∠MFQ与∠DFC的数量关系，并说明理由．25．如图1，在四边形ABCD中，∠A＝∠C，点E在AB边上，DE平分∠ADC，且∠ADE ＝∠DEA．（1）求证：AD∥BC；（2）如图2，已知DF⊥BC交BC边于点G，交AB边的延长线于点F，且DB平分∠EDF．若∠BDC＜45°，试比较∠F与∠EDF的大小，并说明理由．2020-2021学年福建省厦门外国语学校七年级（下）月考数学试卷（3月份）参考答案与试题解析一.选择题（共10小题）1．下列各组图形，可以经过平移变换由一个图形得到另一个图形的是（）A．B．C．D．【分析】根据平移的性质，结合图形对选项进行一一分析，选出正确答案．【解答】解：A、图形的形状和大小没有变化，符合平移的性质，属于平移得到；B、图形的大小发生变化，不符合平移的性质，不属于平移得到；C、图形的方向发生变化，不符合平移的性质，不属于平移得到；D、图形由轴对称得到，不属于平移得到．故选：A．【点评】本题考查平移的基本性质，平移不改变图形的形状、大小和方向．注意结合图形解题的思想．2．如图，直线a，b被c所截，则∠1的内错角是（）A．∠2B．∠3C．∠4D．∠5【分析】两条直线被第三条直线所截形成的角中，若两个角都在两直线的之间，并且在第三条直线（截线）的两旁，则这样一对角叫做内错角．【解答】解：∠1的内错角是∠4．故选：C．【点评】本题主要考查了同位角、内错角、同旁内角，解题的关键是熟记它们的特征．3．如图，直线l与直线a，b相交，且a∥b，∠1＝110°，则∠2的度数是（）A．20°B．70°C．90°D．110°【分析】直接根据平行线的性质即可得出结论．【解答】解：∵直线a∥b，∠1＝100°，∴∠2＝180°﹣∠1＝70°．故选：B．【点评】本题考查的是平行线的性质，用到的知识点为：两直线平行，同旁内角互补．4．下面4个图形中，∠1与∠2是对顶角的是（）A．B．C．D．【分析】根据对顶角的定义，两条直线相交后所得的只有一个公共顶点且两边互为反向延长线，这样的两个角叫做对顶角．【解答】解：根据对顶角的定义可知：只有B项中的是对顶角，其它都不是．故选：B．【点评】本题考查了对顶角的定义，熟记对顶角的定义是解题的关键．5．如图，三角形ABC中，∠ACB＝90°，CD⊥AB于点D，则下列说法错误的是（）A．点A到直线BC的距离为线段AB的长度B．点A到直线CD的距离为线段AD的长度C．点B到直线AC的距离为线段BC的长度D．点C到直线AB的距离为线段CD的长度【分析】根据定义点到直线的距离为：点到直线的垂线段的长度，结合图形进行判断即可．【解答】解：A、点A到直线BC的距离为线段AC的长度，故A错误，符合题意；B、点A到直线CD的距离为线段AD的长度，故B正确，不符合题意；C、点B到直线AC的距离为线段BC的长度，故C正确，不符合题意；D、点C到直线AB的距离为线段CD的长度，故D正确，不符合题意．故选：A．【点评】本题主要考查点到直线的距离的概念，搞清楚概念的本质是解题关键．6．下列命题是真命题的是（）A．同位角相等B．两个锐角的和是锐角C．如果一个数能被4整除，那么它能被2整除D．相等的角是对顶角【分析】根据同位角的性质、角的和、整除、对顶角的性质判断即可．【解答】解：A、两直线平行，同位角相等，是假命题；B、两个锐角的和可能是锐角，是假命题；C、如果一个数能被4整除，那么它能被2整除，是真命题；D、相等的角不一定是对顶角，是假命题；故选：C．【点评】本题考查了命题与定理：判断一件事情的语句，叫做命题．许多命题都是由题设和结论两部分组成，题设是已知事项，结论是由已知事项推出的事项，一个命题可以写成“如果…那么…”形式．有些命题的正确性是用推理证实的，这样的真命题叫做定理．要说明一个命题的正确性，一般需要推理、论证，而判断一个命题是假命题，只需举出一个反例即可．7．实数1﹣2a有平方根，则a可以取的值为（）A．B．1C．D．π【分析】根据负数没有平方根，即可解答此题．【解答】解：由题意得：1﹣2a≥0，解得：a≤∴a可以取的值为．故选：A．【点评】本题主要考查了平方根的定义，明确“一个正数有两个平方根，这两个平方根互为相反数，零的平方根是零，负数没有平方根”是解题的关键．8．9的平方根是±3，用下列式子表示正确的是（）A．±＝3B．＝±3C．±＝±3D．＝3【分析】依据平方根的定义和性质解答即可．【解答】解：．故选：C．【点评】本题主要考查的是平方根的定义和性质，熟练掌握平方根的定义和性质是解题的关键．9．关于“”，下列说法不正确的是（）A．它是一个无理数B．它可以用数轴上的一个点来表示C．它可以表示面积为19的正方形的边长D．若n＜＜n+1（n为整数），则n＝5【分析】分别根据无理数的定义、数轴的意义、正方形面积公式以及无理数的估算方法判断即可．【解答】解：A.是一个无理数，说法正确，故选项A不合题意；B.可以用数轴上的一个点来表示，说法正确，故选项B不合题意；C．它可以表示面积为19的正方形的边长，说法正确，故选项C不合题意；D.，故选项D说法不正确．故选：D．【点评】本题主要考查了无理数的定义、数轴的意义以及无理数的估算，无理数的估算关键是确定无理数的整数部分．“夹逼法”是估算的一般方法，也是常用方法．10．已知min{，x2，x}表示取三个数中最小的那个数，例如：当x＝9，min{，x2，x}＝min{，92，9}＝3．当min{，x2，x}＝时，则x的值为（）A．B．C．D．【分析】本题分别计算＝，x2＝，x＝的x值，找到满足条件的x值即可．首先从x的值代入来求，由x≥0，则x＝0，1，2，3，4，5，则可知最小值是0，最大值是6．【解答】解：当＝时，x＝，x＜，不合题意；当x2＝时，x＝±，当x＝﹣时，x＜x2，不合题意；当x＝时，＝，x2＜x ＜，符合题意；当x＝时，x2＝，x2＜x，不合题意．故选：C．【点评】本题主要考查实数大小比较，算术平方根及其最值问题，解决此题时，注意分类思想的运用．二.填空题（共6小题）11．计算化简：（1）＝2；（2）＝﹣；（3）（）2＝3；（4）＝0.7；（5）（﹣2）＝2﹣2；（6）|﹣3|＝3﹣．【分析】（1）根据二次根式的性质求出即可；（2）根据立方根的定义求出即可；（3）根据二次根式的性质求出即可；（4）根据二次根式的性质求出即可；（5）根据二次根式的性质求出即可；（6）去掉绝对值符号即可．【解答】解：（1）＝2，故答案为：2；（2）＝﹣，故答案为：﹣；（3）（）2＝3，故答案为：3；（4）＝0.7，故答案为：0.7；（5）（﹣2）＝2﹣2，故答案为：2﹣2；（6）|﹣3|＝3﹣，故答案为：3﹣．【点评】本题考查了二次根式的性质和化简，立方根，绝对值等知识点，能熟记二次根式的性质是解此题的关键．12．如图是一把剪刀，若∠AOB+∠COD＝60°，则∠BOD＝150°．【分析】先根据对顶角相等得出∠AOB＝30°，再由邻补角性质可得答案．【解答】解：∵∠AOB＝∠COD，且∠AOB+∠COD＝60°，∴∠AOB＝30°，则∠BOD＝180°﹣∠AOB＝150°，故答案为：150．【点评】本题主要考查对顶角、邻补角，解题的关键是掌握对顶角和邻补角的定义和性质．13．的算术平方根是2．﹣的相反数是．化简：＝3．【分析】根据立方根，相反数和算术平方根的定义可直接求解．【解答】解：的算术平方根是2．﹣的相反数是．化简：＝3．故答案为：2，，3．【点评】主要考查了立方根，相反数和算术平方根的意义，特别注意算术平方根是指一个数的正的平方根．14．把下列命题写成“如果…那么…”的形式：“两直线平行，同位角相等”，改写：如果两直线平行，那么同位角相等．【分析】一个命题都能写成“如果…那么…”的形式，如果后面是题设，那么后面是结论．【解答】解：“两直线平行，同位角相等”的条件是：“两直线平行”，结论为：“同位角相等”，∴写成“如果…，那么…”的形式为：“如果两直线平行，那么同位角相等”，故答案为：如果两直线平行，那么同位角相等．【点评】本题考查了一个命题写成“如果…那么…”的形式，如果后面是题设，那么后面是结论，难度适中．15．如表所示，被开方数a的小数点位置移动和它的算术平方根的小数点位置移动规律符合一定的规律，若＝180，且＝﹣1.8，则被开方数a的值为32400．a…0.0000010.011100100001000000……0.0010.11101001000…【分析】根据题意和表格中数据的变化规律，可以求得a的值．【解答】解：∵＝180，且﹣＝﹣1.8，∴＝1.8，∴＝180，∴a＝32400，故答案为：32400．【点评】本题考查算术平方根，解答本题的关键是明确算术平方根的定义，求出相应的a 的值．16．我国著名的数学家华罗庚曾巧解开立方的智力题：问题：59319是一个整数的立方，求这个整数？解答：因为：10＜＜100，所以：是两位整数；因为：整数59319的末位上的数字是9，而整数0～9的立方中，只有93＝729的末位数字是9，所以：的末位数字是9；又因为划去59319的后面三位319得到59，而3＜＜4，所以的十位数字是3；因此＝39．应用：已知2（2x﹣2）3+221184＝0，其中x是整数．则x的值为﹣23．【分析】分别根据题中所给的分析方法先求出这＝110592的立方根都是两位数，再根据110592的末位数和前三位数确定110592的立方根，据此解答即可．【解答】解：2（2x﹣2）3+221184＝0，（2x﹣2）3＝﹣110592，因为：10＜＜100，所以：两位整数；因为：整数110592的末位上的数字是2，而整数0～9的立方中，只有83＝512，的末位数字是8，所以：的末位数字是8；又因为划去110592的后面三位592得到110，而4＜＜5，所以的十位数字是4；因此＝48．∴2x﹣2＝﹣48，解得x＝﹣23．故答案为：﹣23【点评】本题主要考查了数的立方，理解一个数的立方的个位数就是这个数的个位数的立方的个位数是解题的关键，有一定难度．三.解答题（共9小题）17．（1）计算：4÷2×（﹣3）﹣（﹣9）；（2）计算：x+（2x﹣2）﹣（3x+5）；（3）计算：；（4）解方程：5y+9＝3y﹣1．【分析】（1）先计算除法、同时将减法转化为加法，再计算乘法，最后计算加法即可得；（2）先去括号，再合并同类项即可得；（3）根据有理数的混合运算顺序和运算法则计算可得；（4）依次移项、合并同类项、系数化为1即可得．【解答】解：（1）原式＝2×（﹣3）+9＝﹣6+9＝3；（2）原式＝x+2x﹣2﹣3x﹣5＝﹣7；（3）原式＝[﹣8+（9﹣5）×2]×（﹣3）＝（﹣8+4×2）×（﹣3）＝（﹣8+8）×（﹣3）＝0×（﹣3）＝0；（4）移项，得：5y﹣3y＝﹣1﹣9，合并同类项，得：2y＝﹣10，系数化为1，得：y＝﹣5．【点评】本题主要考查有理数的混合运算与解一元一次方程，解题的关键是掌握有理数的混合运算顺序和运算法则、解一元一次方程的步骤和依据．18．已知：如图，直线AB与CD被EF所截，∠1＝∠2，求证：AB∥CD．【分析】根据对顶角相等，等量代换和平行线的判定定理进行证明即可．【解答】证明：∵∠2＝∠3（对顶角相等），又∵∠1＝∠2（已知），∴∠1＝∠3，∴AB∥CD（同位角相等，两直线平行）．【点评】本题考查的是平行线的判定，掌握平行线的判定定理是解题的关键．19．完成下面的证明：如图，点D、E、F分别是三角形ABC的边BC，CA，AB上的点，DE∥BA，∠FDE＝∠A．求证：DF∥CA．证明：∵DE∥AB（已知）∴∠BFD＝∠EDF（两直线平行，内错角相等）∵∠FDE＝∠A（已知）∴∠A＝∠BFD（等量代换）∴DF∥CA（同位角相等，两直线平行）．【分析】根据平行线的性质，得到∠BFD＝∠EDF，再根据平行线的判定，即可得出DF ∥CA．【解答】证明：∵DE∥AB（已知）∴∠BFD＝∠EDF（两直线平行，内错角相等）∵∠FDE＝∠A（已知）∴∠A＝∠BFD（等量代换）∴DF∥CA（同位角相等，两直线平行）．故答案为：∠EDF，两直线平行，内错角相等；∠BFD，同位角相等，两直线平行．【点评】本题主要考查了平行线的性质与判定的运用，解题时注意：平行线的判定是由角的数量关系判断两直线的位置关系，平行线的性质是由平行关系来寻找角的数量关系．20．如图，已知直线AB，CD相交于点O．（1）读下列语句，并画出图形：点P是直线AB，CD外的一点，直线EF经过点P且与直线AB平行，与直线CD相交于点E；（2）请写出第（1）小题图中所有与∠COB相等的角．【分析】（1）过点P作EF∥AB，交CD于E即可；（2）依据对顶角相等，以及两直线平行，同位角相等，即可得到与∠COB相等的角．【解答】解：（1）如图所示：（2）与∠BOC相等的角有：∠AOD，∠FEC，∠DEP．【点评】此题主要考查了平行线的性质，关键是掌握平行线的画法以及平行线的性质．21．如图，△ABC的三个顶点A、B、C在正方形网格中，每小方格的边长都为1cm．请在方格纸上面图并回答问题：（1）延长线段AB到点D，使BD＝AB；（2）过C点作AB的垂线，垂足为点E；（3）过A点画AF∥BC，交直线CE于点F；（4）△ABC的面积为3cm2．【分析】（1）（2）（3）根据线段的定义以及垂线定义分别画出图形即可；（4）根据三角形的面积公式即可得到结论．【解答】解：（1）如图所示：线段BD即为所求；（2）如图所示：直线CE即为所求；（3）如图所示：直线AF即为所求；（4）△ABC的面积＝×3×2＝3cm2，故答案为：3．【点评】此题主要考查了基本作图以及直线、线段、垂线的定义，利用数形结合是解题关键．22．小辰想用一块面积为100cm2的正方形纸片，沿着边的方向裁出一块面积为90cm2的长方形纸片，使它的长宽之比为5：3．小辰能否用这张正方形纸片裁出符合要求的纸片？若能请写出具体栽法；若不能，请说明理由．【分析】根据长方形面积为90，和长宽比例为5：3即可求得长方形的长，即可解题．【解答】解：设长方形长为5x，则长方形的宽为3x，根据题意得5x•3x＝90，15x2＝90，x2＝6，∵x＞0，∴，∴长方形长为5cm，∴面积为100的正方形的边长为10cm，∵＞2，∴＞10，答：无法裁出符合要求的纸片．【点评】本题考查了一元二次方程的应用以及算术平方根，解题的关键是先求出所裁出的长方形纸片的长．23．阅读下面的文字，解答问题．大家知道是无理数，而无理数是无限不循环小数，因此的小数部分我们不可能全部地写出来，于是小明用﹣1来表示的小数部分，你同意小明的表示方法吗？事实上，小明的表示方法是有道理，因为的整数部分是1，将这个数减去其整数部分，差就是小数部分．请解答：（1）若的整数部分为a，小数部分为b，求a2+b﹣的值．（2）已知：10+＝x+y，其中x是整数，且0＜y＜1，求x﹣y的值．【分析】（1）先估算出的范围，求出a、b的值，再代入求出即可；（2）先估算出的范围，再求出x、y的值，再代入要求的式子进行计算即可．【解答】解：（1）∵3＜＜4，∴a＝3，b＝﹣3，∴a2+b﹣＝32+﹣3﹣＝6；（2）∵1＜＜2，又∵10+＝x+y，其中x是整数，且0＜y＜1，∴x＝11，y＝﹣1，∴x﹣y＝11﹣（﹣1）＝12﹣．【点评】本题考查了估算无理数的大小，能估算出，的范围是解此题的关键．24．如图1，点E在四边形ABCD的边BA的延长线上，CE与AD交于点F，∠DCE＝∠AEF，∠B＝∠D．（1）求证：AD∥BC；（2）如图2，若点P在线段BC上，点Q在线段BP上，且∠FQP＝∠QFP，FM平分∠EFP，试探究∠MFQ与∠DFC的数量关系，并说明理由．【分析】（1）由∠DCE＝∠AEF知BE∥CD，据此得∠D＝∠EAF，结合∠B＝∠D知∠B ＝∠EAF，据此即可得证．（2）根据角平分线的定义可得出∠MFP＝∠EF A+∠AFP以及∠QFP＝∠AFP，将其代入∠QFM＝∠MFP﹣∠QFP可得结论．【解答】解：（1）∵∠DCE＝∠AEF，∴BE∥CD，∴∠D＝∠EAF，又∵∠B＝∠D，∴∠B＝∠EAF，∴AD∥BC；（2）∠QFM＝∠EF A，∵FM为∠EFP的平分线，∴∠MFP＝∠EFP＝∠EF A+∠AFP．∵∠AFQ＝∠QFP，∴∠QFP＝∠AFP，∴∠QFM＝∠MFP﹣∠QFP＝∠EF A，∵∠EF A＝∠DFC，即∠MFQ＝∠DFC．【点评】本题考查了平行线的判定与性质、角平分线的定义，解题的关键是掌握平行线的判定和性质及角平分线的定义．25．如图1，在四边形ABCD中，∠A＝∠C，点E在AB边上，DE平分∠ADC，且∠ADE ＝∠DEA．（1）求证：AD∥BC；（2）如图2，已知DF⊥BC交BC边于点G，交AB边的延长线于点F，且DB平分∠EDF．若∠BDC＜45°，试比较∠F与∠EDF的大小，并说明理由．【分析】（1）根据角平分线的定义可得∠CDE＝∠ADE，再结合已知条件可得∠CDE＝∠DEA，从而得出CD∥AB，根据平行线的性质以及已知条件可得∠B+∠A＝180°，从而证得AD∥BC；（2）由垂直的定义可得∠BGF＝90°，由AD∥BC可得∠ADF＝∠BGF＝90°，由CD ∥AB可得∠CDF＝∠F，∠EDB＝∠BDF＝x°，∠CDF＝∠F＝y°，则∠EDF＝2x°，∠ADE＝∠EDC＝（2x+y）°，由∠ADF＝∠ADE+∠EDF，得2x+y+2x＝90，得出y＝90﹣4x，∠F﹣∠EDF＝y°﹣2x°＝90°﹣6x°，再根据∠BDC＜45°得出x+y＜45°，求出x的取值范围，进而比较出∠F与∠EDF的大小．【解答】解：（1）证明：∵DE平分∠ADC，∴∠CDE＝∠ADE，又∵∠ADE＝∠DEA，∴∠CDE＝∠DEA，∴CD∥AB，∴∠B+∠C＝180°，又∵∠A＝∠C，∴∠B+∠A＝180°，∴AD∥BC；（2）∵DF⊥BC，∴∠BGF＝90°，又∵AD∥BC，∴∠ADF＝∠BGF＝90°，∵CD∥AB，∴∠CDF＝∠F．设∠EDB＝∠BDF＝x°，∠CDF＝∠F＝y°，则∠EDF＝2x°，∠ADE＝∠EDC＝（2x+y）°，由∠ADF＝∠ADE+∠EDF，得2x+y+2x＝90，∴y＝90﹣4x，∴∠F﹣∠EDF＝y°﹣2x°＝90°﹣4x°﹣2x°＝90°﹣6x，∵∠BDC＜45°，∴x+y＜45°，x+90﹣4x＜45，解得x＞15，∴6x＞90．∴∠F﹣∠EDF＝90°﹣6x°＜0，∴∠F＜∠EDF．【点评】本题考查了平行线的判定以及多边形的内角和公式，根据角的和差关系和倍分关系列出式子或方程是解答（2）的关键．。
2020年福建省宁德市中考物理模拟考试(三月月考试卷)
2020年福建省宁德市中考物理模拟试卷（3月份）学校:___________姓名：___________班级：___________考号：___________一、单选题（本大题共16小题，共32.0分）1.下列四幅图片与其对应的说法，正确的是()A. 图中摩托车的消音器是在人耳处减弱噪声的B. 图中蝙蝠的导航系统在太空中依然可能发挥作用C. 图中正在发声的音叉把小球反复弹开，说明发声的音叉在振动D. 图中自制橡皮筋吉他的橡皮筋粗细不同，是为了改变声音的音色2.近一年来在我们的生活中，4G手机通信业务已经逐渐推广，使用4G手机不仅通话信号好，还要在无线网络上网时效果更佳。
下列说法正确的是()A. 电磁波和声波在空气中的传播速度都是3×108m/sB. 电磁波和声波都是由物体振动产生的C. 手机无线上网是利用电磁波传输信息D. 电磁波能传递能量，声波不能传递能量3.如图所示的四种现象中，符合安全用电要求的是()A. 在电加热器上烘烤衣服B. 使用绝缘层破损的插头C. 在高压线附近放风筝D. 换灯泡时断开电源4.“影”是我们日常生活中常见的光现象，如做光学游戏形成的“手影”，剧院放映的“电影”，湖岸景色在水中形成的“倒影”，春游时留下美好记忆的照片−摄影等，以下列出的“影”与物理知识对应关系不正确的是()A. 手影--光的直线传播B. 电影--光的直线传播C. 倒影--平面镜成像D. 摄影--光的折射5.如图所示，小亮用一根与毛皮摩擦过的橡胶棒接近从水龙头流出的细水流时，发现细水流偏向橡胶棒，不再竖直下流。
这一现象说明()A. 水流被风吹偏了B. 水流带有和橡胶棒相反的电荷C. 水带上了电荷，能吸引不带电橡胶棒D. 带上电荷的橡胶棒能吸引细水流我省昌江核电工程已经开工，以下关于核能发电的说法中不正确的是()A. 核废料具有放射性B. 核能发电会产生大量的二氧化碳C. 核电的最大优点之一是功率大D. 核反应堆中发生的链式反应是可控的6.下列关于热机和环境保护的说法中，正确的是()A. 热机排出的尾气没有内能B. 热机的效率能达到100%C. 热机都是使用汽油作燃料D. 热机的大量使用会造成环境污染7.在提倡“低碳生活”的今天，自行车成为人们“绿色出行”的首选工具，越来越多的年轻人喜欢上了骑行。
2020-2021学年北京市朝阳区七年级(下)月考数学试卷(3月份)(含解析)
2020-2021学年北京市朝阳区七年级（下）月考数学试卷（3月份）一、选择题（共10小题）.1．已知a、b是两个连续的整数，且a＜＜b，a+b则等于（）A．7B．8C．9D．102．下列命题中，是真命题的是（）A．相等的角是对顶角B．垂线段最短C．的平方根是±9D．无限小数都是无理数3．下列各式中，正确的是（）A．±＝±3B．（﹣）2＝9C．＝﹣3D．＝﹣2 4．对于实数x，我们规定[x]表示不大于x的最大整数，如[4]＝4，[]＝1，[﹣2.5]＝﹣3．现对82进行如下操作：82[]＝9[]＝3[]＝1，这样对82只需进行3次操作后变为1，类似地，对121只需进行多少次操作后变为1（）A．1B．2C．3D．45．如图，一条公路修到湖边时，需拐弯绕道而过，如果第一次拐的角∠A是100°第二次拐的角∠B是150°，第三次拐的角是∠C，这时的道路恰好和第一次拐弯之前的道路平行，则∠C是（）A．120°B．130°C．140°D．150°6．如图，a∥b，AB∥CD，CE⊥b，FG⊥b，E、G为垂足，则下列说法中错误的是（）A．CE∥FGB．CE＝FGC．A、B两点的距离就是线段AB的长D．直线a、b间的距离就是线段CD的长7．关于代数式的说法正确的是（）A．x＝0时最大B．x＝0时最小C．x＝﹣4时最大D．x＝﹣4时最小8．如图，已知AC∥BD，∠CAE＝30°，∠DBE＝45°，则∠AEB等于（）A．30°B．45°C．60°D．75°9．如图，将△ABE向右平移2cm得到△DCF．如果△ABE的周长是16cm，那么四边形ABFD 的周长是（）A．16 cm B．18 cm C．20 cm D．21 cm10．如图，把△ABC纸片沿DE折叠，当点A落在四边形BCDE内部时，则∠A与∠1+∠2之间有一种数量关系始终保持不变，请试着找一找这个规律，这个规律是（）A．∠A＝∠1+∠2B．3∠A＝2∠1+∠2C．2∠A＝∠1+∠2D．3∠A＝2（∠1+∠2）二、填空题11．如果的平方根是±3，则＝．12．设：＝1.732，＝5.477，则＝．13．如图，已知AD∥BC，∠B＝30°，DB平分∠ADE，则∠DEC＝．14．如图，把一个长方形纸片沿EF折叠后，点D、C分别落在D′、C′的位置，若∠EFB ＝70°，则∠AED′等于．15．如图，直线AB、CD相交于点O，OE⊥AB，O为垂足，如果∠EOD＝38°，则∠AOC ＝度，∠COB＝度．16．如图，已知AB∥CD，F为CD上一点，∠EFD＝60°，∠AEC＝2∠CEF，若6°＜∠BAE＜15°，∠C的度数为整数，则∠C的度数为．17．如图，数轴上A、B两点表示的数分别为1和，且AB＝AC，那么数轴上C点表示的数为．18．已知，BC∥OA，∠B＝∠A＝100°，点E、F在BC上，OE平分∠BOF，且∠FOC＝∠AOC，下列结论中正确的是：．①OB∥AC；②∠EOC＝45°；③∠OCB：∠OFB＝1：3；④若∠OEB＝∠OCA，则∠OCA＝60°．三、计算题19．计算：（1）|﹣2|+|﹣1|﹣．（2）﹣22﹣+（﹣1）2013×+．20．求下列各式中x的值．（1）8x2﹣128＝0；（2）（x+2）3＝﹣27．（3）4（x+1）2＝64．21．将下列各数填入相应的集合内．﹣7，0.32，，0，，，，π，0.1010010001…①有理数集合{ …}②无理数集合{ …}③负实数集合{ …}．22．（1）已知2a﹣1的平方根是±3，3a+b﹣1的平方根是±4，求a+2b的平方根；（2）若x，y都是实数，且y＝+8，求x+3y的立方根．23．阅读理解∵＜＜，即2＜＜3．∴的整数部分为2，小数部分为﹣2∴1＜﹣1＜2∴﹣1的整数部分为1．∴﹣1的小数部分为﹣2解决问题：已知：a是﹣3的整数部分，b是﹣3的小数部分，求：（1）a，b的值；（2）（﹣a）3+（b+4）2的平方根．24．如图，经过平移，△ABC的顶点A移到了点D，请作出平移后的三角形．25．完成证明并写出推理根据已知，如图，∠1＝132°，∠ACB＝48°，∠2＝∠3，FH⊥AB于H，求证：CD⊥AB．证明：∵∠1＝132°，∠ACB＝48°∴∠1+∠ACB＝180°∴DE∥BC∴∠2＝∠DCB（）又∵∠2＝∠3∴∠3＝∠DCB（）∴HF∥DC（）∴∠CDB＝∠FHB．（）又∵FH⊥AB，∴∠FHB＝90°∴∠CDB＝°∴CD⊥AB．（）26．如图，∠E＝∠1，∠3+∠ABC＝180°，BE是∠ABC的角平分线．你能判断DF与AB 的位置关系吗？请说明理由．27．学习完平行线的性质与判定之后，我们发现借助构造平行线的方法可以帮我们解决许多问题．（1）小明遇到了下面的问题：如图1，l1∥l2，点P在l1，l2内部，探究∠A，∠APB，∠B的关系小明过点P作l1的平行线，可证∠APB，∠A，∠B之间的数量关系是：∠APB＝；（2）如图2，若AC∥BD，点P在AC，BD外部，∠A，∠B，∠APB的数量关系是否发生变化？请写出证明过程；（3）随着以后的学习你还会发现平行线的许多用途．试构造平行线解决以下问题：已知：如图3，三角形ABC，求证：∠A+∠B+∠C＝180°．参考答案一、选择题1．已知a、b是两个连续的整数，且a＜＜b，a+b则等于（）A．7B．8C．9D．10【分析】先估算出的取值范围，再求出a，b的值，进而可得出结论．解：∵16＜19＜25，∴4＜＜5．∵a、b是两个连续的整数，∴a＝4，b＝5，∴a+b＝4+5＝9．故选：C．2．下列命题中，是真命题的是（）A．相等的角是对顶角B．垂线段最短C．的平方根是±9D．无限小数都是无理数【分析】根据对顶角的定义、垂线段的性质、平方根以及无理数的概念进行判断．解：A．相等的角不一定是对顶角，错误；B．垂线段最短，正确；C．的平方根是±3，错误；D．无限小数不都是无理数，错误；故选：B．3．下列各式中，正确的是（）A．±＝±3B．（﹣）2＝9C．＝﹣3D．＝﹣2【分析】直接利用二次根式的性质分别化简得出答案．解：A、±＝±3，故此选项正确；B、（﹣）2＝3，故此选项错误；C、，无法化简，故此选项错误；D、＝2，故此选项错误；故选：A．4．对于实数x，我们规定[x]表示不大于x的最大整数，如[4]＝4，[]＝1，[﹣2.5]＝﹣3．现对82进行如下操作：82[]＝9[]＝3[]＝1，这样对82只需进行3次操作后变为1，类似地，对121只需进行多少次操作后变为1（）A．1B．2C．3D．4【分析】[x]表示不大于x的最大整数，依据题目中提供的操作进行计算即可．解：121[]＝11[]＝3[]＝1，∴对121只需进行3次操作后变为1，故选：C．5．如图，一条公路修到湖边时，需拐弯绕道而过，如果第一次拐的角∠A是100°第二次拐的角∠B是150°，第三次拐的角是∠C，这时的道路恰好和第一次拐弯之前的道路平行，则∠C是（）A．120°B．130°C．140°D．150°【分析】首先根据题意作辅助线：过点B作BD∥AE，即可得AE∥BD∥CF，则可求得：∠A＝∠1，∠2+∠C＝180°，则可求得∠C的值．解：过点B作BD∥AE，∵AE∥CF，∴AE∥BD∥CF，∴∠A＝∠1，∠2+∠C＝180°，∵∠A＝100°，∠1+∠2＝∠ABC＝150°，∴∠2＝50°，∴∠C＝180°﹣∠2＝180°﹣50°＝130°，故选：B．6．如图，a∥b，AB∥CD，CE⊥b，FG⊥b，E、G为垂足，则下列说法中错误的是（）A．CE∥FGB．CE＝FGC．A、B两点的距离就是线段AB的长D．直线a、b间的距离就是线段CD的长【分析】根据垂线的性质以及两点之间的距离定义以及两直线之间的距离定义分别分析得出即可．解：A、∵CE⊥b，FG⊥b，∴FG∥EC，故此选项正确，不符合题意；B、∵a∥b，FG∥EC，∴四边形FGEC是平行四边形，∴FG＝EC，故此选项正确，不符合题意；C、A、B两点的距离就是线段AB的长，此选项正确，不符合题意；D、直线a、b间的距离就是线段CE的长，故此选项错误，符合题意．故选：D．7．关于代数式的说法正确的是（）A．x＝0时最大B．x＝0时最小C．x＝﹣4时最大D．x＝﹣4时最小【分析】由算术平方根的性质可知，是非负数，最小是0，这时的值最大，即可解答．解：当＝0时，的值最大，即x+4＝0，解得x＝﹣4．故选：C．8．如图，已知AC∥BD，∠CAE＝30°，∠DBE＝45°，则∠AEB等于（）A．30°B．45°C．60°D．75°【分析】过E作EF∥AC，然后根据平行线的传递性可得EF∥BD，再根据平行线的性质可得∠B＝∠2＝45°，∠1＝∠A＝30°，进而可得∠AEB的度数．解：过E作EF∥AC，∵AC∥BD，∴EF∥BD，∴∠B＝∠2＝45°，∵AC∥EF，∴∠1＝∠A＝30°，∴∠AEB＝30°+45°＝75°，故选：D．9．如图，将△ABE向右平移2cm得到△DCF．如果△ABE的周长是16cm，那么四边形ABFD 的周长是（）A．16 cm B．18 cm C．20 cm D．21 cm【分析】根据平移的性质可得DF＝AE，然后判断出四边形ABFD的周长＝△ABE的周长+AD+EF，然后代入数据计算即可得解．解：∵△ABE向右平移2cm得到△DCF，∴DF＝AE，∴四边形ABFD的周长＝AB+BE+DF+AD+EF，＝AB+BE+AE+AD+EF，＝△ABE的周长+AD+EF，∵平移距离为2cm，∴AD＝EF＝2cm，∵△ABE的周长是16cm，∴四边形ABFD的周长＝16+2+2＝20cm．故选：C．10．如图，把△ABC纸片沿DE折叠，当点A落在四边形BCDE内部时，则∠A与∠1+∠2之间有一种数量关系始终保持不变，请试着找一找这个规律，这个规律是（）A．∠A＝∠1+∠2B．3∠A＝2∠1+∠2C．2∠A＝∠1+∠2D．3∠A＝2（∠1+∠2）【分析】根据三角形的内角和定理，以及四边形的内角和定理即可求出答案．解：由题意可知：∠AED+∠ADE＝180°﹣∠A，∠B+∠C＝180°﹣∠A∵∠AED+∠ADE+∠1+∠2+∠B+∠C＝360°，∴360°﹣2∠A+∠1+∠2＝360°，∴2∠A＝∠1+∠2，故选：C．二、填空题11．如果的平方根是±3，则＝4．【分析】求出a的值，代入求出即可．解：∵的平方根是±3，∴＝9，∴a＝81，∴＝＝4，故答案为：4．12．设：＝1.732，＝5.477，则＝17.32．【分析】由＝1.732，根据移位规律可得只要将的结果的小数点向右移动一位即可得到答案．解：∵＝1.732，而3×102＝300∴＝10×1.732＝17.32，故答案为：17.32．13．如图，已知AD∥BC，∠B＝30°，DB平分∠ADE，则∠DEC＝60°．【分析】由AD∥BC，∠B＝30°，根据平行线的性质，可得∠ADB＝30°，又由DB平分∠ADE，可求得∠ADE的度数，继而求得答案．解：∵AD∥BC，∠B＝30°，∴∠ADB＝∠B＝30°，∵DB平分∠ADE，∴∠ADE＝2∠ADB＝60°，∵AD∥BC，∴∠DEC＝∠ADE＝60°．故答案为：60°．14．如图，把一个长方形纸片沿EF折叠后，点D、C分别落在D′、C′的位置，若∠EFB ＝70°，则∠AED′等于40°．【分析】根据两直线平行，内错角相等求出∠DEF，再根据折叠的性质可得∠D′EF，然后利用平角等于180°列式计算即可得解．解：∵ABCD是长方形纸片，∴AD∥BC，∴∠DEF＝∠EFB＝70°，根据折叠的性质，∠D′EF＝∠DEF＝70°，所以，∠AED′＝180°﹣（∠D′EF+∠DEF）＝180°﹣（70°+70°）＝180°﹣140°＝40°．故答案为：40°．15．如图，直线AB、CD相交于点O，OE⊥AB，O为垂足，如果∠EOD＝38°，则∠AOC ＝52度，∠COB＝128度．【分析】由已知条件和观察图形可知∠EOD与∠DOB互余，∠DOB与∠AOC是对顶角，∠COB与∠AOC互补，利用这些关系可解此题．解：∵OE⊥AB，∴∠EOB＝90°，又∠EOD＝38°，∴∠DOB＝90°﹣38°＝52°，∵∠AOC＝∠DOB，∴∠AOC＝52°，∵∠COB与∠AOC互补，∴∠COB＝180°﹣52°＝128°．故答案为：52；128．16．如图，已知AB∥CD，F为CD上一点，∠EFD＝60°，∠AEC＝2∠CEF，若6°＜∠BAE＜15°，∠C的度数为整数，则∠C的度数为36°或37°．【分析】先过E作EG∥AB，根据平行线的性质可得∠AEF＝∠BAE+∠DFE，再设∠CEF ＝x，则∠AEC＝2x，根据6°＜∠BAE＜15°，即可得到6°＜3x﹣60°＜15°，解得22°＜x＜25°，进而得到∠C的度数．解：如图，过E作EG∥AB，∵AB∥CD，∴GE∥CD，∴∠BAE＝∠AEG，∠DFE＝∠GEF，∴∠AEF＝∠BAE+∠DFE，设∠CEF＝x，则∠AEC＝2x，∴x+2x＝∠BAE+60°，∴∠BAE＝3x﹣60°，又∵6°＜∠BAE＜15°，∴6°＜3x﹣60°＜15°，解得22°＜x＜25°，又∵∠DFE是△CEF的外角，∠C的度数为整数，∴∠C＝60°﹣23°＝37°或∠C＝60°﹣24°＝36°，故答案为：36°或37°．17．如图，数轴上A、B两点表示的数分别为1和，且AB＝AC，那么数轴上C点表示的数为2﹣．【分析】设C点表示x，再根据数轴上两点间距离的定义即可得出结论．解：设C点表示x，∵数轴上A、B两点表示的数分别为1和，且AB＝AC，∴1﹣x＝﹣1，解得x＝2﹣．故答案为：2﹣．18．已知，BC∥OA，∠B＝∠A＝100°，点E、F在BC上，OE平分∠BOF，且∠FOC＝∠AOC，下列结论中正确的是：①④．①OB∥AC；②∠EOC＝45°；③∠OCB：∠OFB＝1：3；④若∠OEB＝∠OCA，则∠OCA＝60°．【分析】①由BC∥OA，∠B＝∠A＝100°，∠AOB＝∠ACB＝180°﹣100°＝80°，得到∠A+∠AOB＝180°，得出OB∥AC．②OE平分∠BOF，得出∠FOE＝∠BOE＝∠BOF，∠FOC＝∠AOC＝∠AOF，从而计算出∠EOC＝∠FOE+∠FOC＝40°．③由∠OCB＝∠AOC，∠OFB＝∠AOF＝2∠AOC，得出∠OCB：∠OFB＝1：2．④由∠OEB＝∠OCA＝∠AOE＝∠BOC，得到∠AOE﹣∠COE＝∠BOC﹣∠COE，∠BOE ＝∠AOC，再得到∠BOE＝∠FOE＝∠FOC＝∠AOC＝∠AOB＝20°，从而计算出∠OCA＝∠BOC＝3∠BOE＝60°．解：∵BC∥OA，∠B＝∠A＝100°，∴∠AOB＝∠ACB＝180°﹣100°＝80°，∴∠A+∠AOB＝180°，∴OB∥AC．故①正确；∵OE平分∠BOF，∴∠FOE＝∠BOE＝∠BOF，∴∠FOC＝∠AOC＝∠AOF，∴∠EOC＝∠FOE+∠FOC＝（∠BOF+∠AOF）＝×80°＝40°．故②错误；∵∠OCB＝∠AOC，∠OFB＝∠AOF＝2∠AOC，∴∠OCB：∠OFB＝1：2．故③错误；∵∠OEB＝∠OCA＝∠AOE＝∠BOC，∴∠AOE﹣∠COE＝∠BOC﹣∠COE，∴∠BOE＝∠AOC，∴∠BOE＝∠FOE＝∠FOC＝∠AOC＝∠AOB＝20°，∴∠OCA＝∠BOC＝3∠BOE＝60°．故④正确．故答案为：①④．三、计算题19．计算：（1）|﹣2|+|﹣1|﹣．（2）﹣22﹣+（﹣1）2013×+．解：（1）原式＝2﹣+﹣1﹣2＝﹣1；（2）原式＝﹣4﹣2﹣﹣＝﹣7．20．求下列各式中x的值．（1）8x2﹣128＝0；（2）（x+2）3＝﹣27．（3）4（x+1）2＝64．【分析】（1）直接利用平方根的定义计算得出答案；（2）直接利用立方根的定义计算得出答案；（3）直接利用平方根的定义计算得出答案．解：（1）8x2﹣128＝0，则8x2＝128，故x2＝16，解得：x＝±4；（2）（x+2）3＝﹣27，则x+2＝﹣3，解得：x＝﹣5；（3）4（x+1）2＝64则（x+1）2＝16，故x+1＝±4，解得：x＝﹣5或3．21．将下列各数填入相应的集合内．﹣7，0.32，，0，，，，π，0.1010010001…①有理数集合{ …}②无理数集合{ …}③负实数集合{ …}．【分析】根据实数的分类：实数分为有理数、无理数．或者实数分为正实数、0、负实数．进行填空．解：＝5，＝2．①有理数集合{﹣7，0.32，，0，…}②无理数集合{，，π，0.1010010001…}③负实数集合{﹣7…}．故答案是：﹣7，0.32，，0，；，，π，0.1010010001…；﹣7．22．（1）已知2a﹣1的平方根是±3，3a+b﹣1的平方根是±4，求a+2b的平方根；（2）若x，y都是实数，且y＝+8，求x+3y的立方根．解：（1）由题意可知：2a﹣1＝9，3a+b﹣1＝16，∴a＝5，b＝2，∴a+2b＝5+4＝9，∴9的平方根是±3，即a+2b的平方根为±3．（2）由题意可知：，∴x＝3，∴y＝8，∴x+3y＝3+24＝27，∴27的立方根是3，即x+3y的立方根是323．阅读理解∵＜＜，即2＜＜3．∴的整数部分为2，小数部分为﹣2∴1＜﹣1＜2∴﹣1的整数部分为1．∴﹣1的小数部分为﹣2解决问题：已知：a是﹣3的整数部分，b是﹣3的小数部分，求：（1）a，b的值；（2）（﹣a）3+（b+4）2的平方根．解：（1）∵＜＜，∴4＜＜5，∴1＜﹣3＜2，∴a＝1，b＝﹣4，（2）（﹣a）3+（b+4）2＝（﹣1）3+（﹣4+4）2＝﹣1+17＝16，故（﹣a）3+（b+4）2的平方根是：±4．24．如图，经过平移，△ABC的顶点A移到了点D，请作出平移后的三角形．解：如图，△DEF就是所求作的三角形．25．完成证明并写出推理根据已知，如图，∠1＝132°，∠ACB＝48°，∠2＝∠3，FH⊥AB于H，求证：CD⊥AB．证明：∵∠1＝132°，∠ACB＝48°∴∠1+∠ACB＝180°∴DE∥BC∴∠2＝∠DCB（两直线平行，内错角相等）又∵∠2＝∠3∴∠3＝∠DCB（等量代换）∴HF∥DC（同位角相等，两直线平行）∴∠CDB＝∠FHB．（两直线平行，同位角相等）又∵FH⊥AB，∴∠FHB＝90°∴∠CDB＝90°∴CD⊥AB．（垂直的定义）【分析】求出∠1+∠ACB＝180°，根据平行线的判定得出DE∥BC，根据平行线的性质得出∠2＝∠DCB，求出∠3＝∠DCB，根据平行线的判定得出HF∥CD，根据平行线的性质得出∠CDB＝∠FHB，即可求出答案．【解答】证明：∵∠1＝132°，∠ACB＝48°，∴∠1+∠ACB＝180°，∴DE∥BC，∴∠2＝∠DCB（两直线平行，内错角相等），又∵∠2＝∠3，∴∠3＝∠DCB（等量代换），∴HF∥DC（同位角相等，两直线平行），∴∠CDB＝∠FHB（两直线平行，同位角相等），又∵FH⊥AB，∴∠FHB＝90°，∴∠CDB＝90°，∴CD⊥AB．（垂直的定义）故答案为：两直线平行，内错角相等；等量代换；同位角相等，两直线平行；两直线平行，同位角相等；90；垂直的定义．26．如图，∠E＝∠1，∠3+∠ABC＝180°，BE是∠ABC的角平分线．你能判断DF与AB 的位置关系吗？请说明理由．【解答】证明：平行，理由是：∵BE是∠ABC的角平分线∴∠1＝∠2，∵∠E＝∠1，∴∠E＝∠2，∴AE∥BC，∴∠A+∠ABC＝180°，∵∠3+∠ABC＝180°，∴∠A＝∠3，∴DF∥AB．27．学习完平行线的性质与判定之后，我们发现借助构造平行线的方法可以帮我们解决许多问题．（1）小明遇到了下面的问题：如图1，l1∥l2，点P在l1，l2内部，探究∠A，∠APB，∠B的关系小明过点P作l1的平行线，可证∠APB，∠A，∠B之间的数量关系是：∠APB ＝∠A+∠B；（2）如图2，若AC∥BD，点P在AC，BD外部，∠A，∠B，∠APB的数量关系是否发生变化？请写出证明过程；（3）随着以后的学习你还会发现平行线的许多用途．试构造平行线解决以下问题：已知：如图3，三角形ABC，求证：∠A+∠B+∠C＝180°．解：（1）∵l1∥PE∥l2，∴∠A＝∠APE，∠B＝∠BPE，∴∠APB＝∠APE+∠BPE＝∠A+∠B，（2）∵AC∥BD，∴∠PEC＝∠B，∵∠PEC＝∠A+∠APB，∴∠B＝∠A+∠APB，（3）过点A作PE∥BC，∴∠PAB＝∠B，∠EAC＝∠C，∵∠PAB+∠BAC+∠CAE＝180°，∴∠B+∠BAC+∠C＝180°。
2020-2021学年湖北省武汉二中九年级(下)月考英语试卷(3月份)
2020-2021学年湖北省武汉二中九年级（下）月考英语试卷（3月份）第二部分笔试部分（95分）一、单项选择（共15小题，每小题1分，满分15分）从题中所给的A、B、C、D四个选项中，选出一个最佳答案1．（1分）﹣You went to Thailand last week．Did you have a good time？（）﹣Well，_______．The food was wonderful but the hotel was awful．A．it depends B．not at all C．of course D．yes and no 2．（1分）—Would you mind my opening the window？—_________.It's so hot in the room.（）A．Of course not B．CertainlyC．You'd better not D．Thank you3．（1分）—He'll_________himself when he finds out he could have had the job.—That's natural.After all，he works so hard.（）A．kick B．knock C．balance D．weigh4．（1分）—I still don't know what _________while I was away from home.—You'll know it all someday，I believe.（）A．happened B．would happenC．has happened D．had happened5．（1分）—Did you see your friend off yesterday？—No.When I _________to her house，she _________ away for half an hour.（）A．got；had left B．had got；had beenC．got；was D．got；had been6．（1分）—Mike，why are you so late？We have been waiting for you for an hour.—I'm sorry.The old car_________ hard as we drove slowly up the hill.（）A．pushed B．pulled C．behaved D．acted7．（1分）—You must be good at math，aren't you？—No.I don't have a（n）_________for numbers.I'm better at art.（）A．idea B．head C．eye D．sense8．（1分）—During the Spring Festival，people usually put paper cutting on windows，doors andwalls.—Yes.They are symbols of wishes for good luck and a happy new year.We must keep the tradition .（）A．lively B．living C．alive D．live9．（1分）—We all want to try something new，but finding the_________ to start is always the hardest part.—Yes，I agree with you.A good beginning is half done.（）A．power B．progress C．courage D．knowledge 10．（1分）—What can we do to protect the environment？—We_________ classify （分类）the rubbish and throw them into the right bin.（）A．must B．might C．have to D．should11．（1分）—Think carefully before you resign（辞职）—you don't want to ______ your bridges.—I get it，but I really need a change.（）A．cut B．break C．burn D．destroy12．（1分）—What time will we meet at the school gate，Ms.Chen？—Please pay _________ attention to what I am telling you.（）A．strong B．huge C．close D．prime13．（1分）—Look!There are flowers and green trees on_________side of the road.—Yes，they're really tidy and beautiful.（）A．both B．neither C．either D．none14．（1分）—If you keep on working like that，you will _________ sooner or later.—I know that，but I have to complete my task.（）A．give up B．give out C．give in D．give off15．（1分）—Son，what did you learn today？—Our physics teacher told us_________.（）A．when the telephone is inventedB．why we have to study physicsC．that the sun is much bigger than the earthD．why did we have to study physics二、完形填空16．（15分）阅读下面短文，从短文后各题所给的A、B、C和D四个选项中，选出可以填入空白处的最佳选项。
河北省廊坊市五年级下学期数学月考试卷(3月份)
河北省廊坊市五年级下学期数学月考试卷（3月份）姓名:________ 班级:________ 成绩:________亲爱的小朋友们，这一段时间的学习，你们收获怎么样呢？今天就让我们来检验一下吧！一、解答题（满分12分） (共1题；共12分)1. （12分）解方程。
（1）x÷1.8=11.7（2） x+6.5=18（3） 2x-2.7=5.3二、填空（共23分） (共12题；共23分)2. （2分）用简便写法表示下面的式子．4×a=________x×1.5=________3. （1分）口算（24＋16）÷4=________13×（16＋14）=________7×8＋3×8=________4. （2分） 6是3的________，3是6的________．5. （1分） (2019五上·晋城期末) 一个数比20大，比40小，如果这个数是5的倍数，又是偶数，那么它是________。
6. （3分） (2019五下·明光期末) 明明看一本故事书200页，每天看23页，看了x天，还剩________页。
7. （4分）下面表示的是________运算定律？abc=(ab)c=a(bc)8. （2分）先把数量关系补充完整，再解答．学校饲养小组养黑兔12只，正好是白兔的，饲养组养白兔多少只？________ 的只数×=________ 的只数．9. （1分）根据下列题目中的数量关系，用含有字母的式子表示。
橘子和香蕉的单价分别是每千克5元和6元，买x千克的橘子和y千克的香蕉，共需________元．10. （2分）三个连续自然数中间的一个数是a，他们的和是________．11. （1分）填一填。
（1）如果用a和b分别表示两个加数，那么加法交换律可表示为________。
（2）如果用a，b和c分别表示三个加数，那么加法结合律可以表示为________。
【语文】2020-厦门一中-初三下3月月考-试卷+答案
D.本文作者认为，与草木同安，应是人类的大同理想。
12.第③段在文章中有何作用？(4 分)
13.结合文本说一说，草在生活中有哪些具体的作用？(6 分)
14.结合上下文品析词句。(8 分)
(1)如何理解文章第⑤段画线句中加点词“怒放”？(4 分)
他们在黄土地上过着一种隐忍的生活，偶尔怒．放．，于简中释放美好。
（选自叶嘉莹《唐宋词十七讲》） （_________ ②处__________ （2）为文中甲乙处加点字选择符合语境的解释，只填序号。（2 分）
甲处__________ 乙处__________ （3）在文中横线上依次填入下列三个句子，恰当的一项是（ ）（4 分）
(2)从修辞角度品析第⑥段的画线句。(4 分)
当一座山被这些声音打开，它就不再怀才不遇，不再孤独终老。
15.联系全文说说你对“草木的精神”的理解。(6 分)
3
(四)阅读下面的文字，完成 16～18 题。(14 分) 为什么盯一个字看久了，反而感觉不认识了？
①你有没有过这样的经历，盯着一个字看久了，这个字好像变得越来越扭曲，到最后甚至感觉都不认识这个 字了？例如“了”字，你试着盯 30 秒，越看越一脸懵……这个字原本在日常中应用频繁，但却可以在长时间的 观察下逐渐变得陌生。不光是盯久了，一个字写久了也会有出现相同的感觉。这究竟是怎么一回事呢？
④首先，让我们先搞懂在“认字”的这个过程中，我们的小脑袋到底经历了什么。 ⑤看到一个字时，我们的大脑会经历两个步骤： ⑥我们的眼睛先输入了字形的图案信息，然后传送给大脑；大脑接受到了这个图案信息后开始运转，在它的 知识仓库里找到和这个字形相关联的意义，然后把它们联系起来。 ⑦而在这个过程中，主要负责接收和处理信息的是我们大脑中的神经元，也就是在识别文字时，字的笔画结 构等视觉上的信息，会刺激着神经元。被刺激后，神经元会发送视觉信号给我们的神经中枢，我们的神经中枢就 会在一个视觉与文字记忆的数据库进行比对，找到正确的语义，我们也就理解了这个字的含义。 ⑧但是如果你长时间盯着一个字看，情况又会有所改变。你的眼睛不断接收这个字形，同一个区域的神经元 会被反复刺激，然后神经元再反复发送信号给神经中枢，神经中枢再反复读取记忆库中的数据。 ⑨短时间内进行了这样一个反复的过程，神经元感觉到疲倦了，它就会选择偷懒，减少接受刺激。直至最后 罢工，也不发送信号给神经中枢了。因此，我们看到一个字就只剩下它的形状，而短暂失去了它的内涵。 ⑩Leon James 表示，任何一个词都可能成为我们体验语义饱和的牺牲品。但也有例外，举个例子，大碗宽面
9广东省北京师范大学珠海分校附属外国语学校2020-2021学年七年级3月月考英语试题
北师大珠海分校附属外国语学校2020-2021学年第二学期第一次月考考试七年级英语试卷满分：120分 时间：90分钟听力部分一、听力理解（本大题分为四部分，共30小题，每小题1分，共30分） A. 听单句话（本题共5小题，每小题1分，共5分）根据所听句子的内容和所提的问题，选择符合题意的图画回答问题。
并将最佳选项的字母编号填写在题号前的括号内。
每小题听一遍。
B. 听对话（本题共10小题，每小题1分，共10分）根据所听内容, 回答每段对话后面的问题，在每小题所给的三个选项中选出一个最佳答案，并将其字母编号写在题号前的括号内。
每段对话听两遍。
听第一段对话，回答第6小题。
( ) 6.What does the girl never do in the evening? A. Eat dinner.B. Do homework.C. Watch TV .听第二段对话，回答第7小题。
( ) 7.What does Tim do in the morning?A. Do morning exercises.B.Play basketball.C.Swim.听第三段对话，回答第8小题。
( ) 8.When does Mary usually clean her room?A.On Friday morning.B.On Saturday morning.C.On Sunday morning.听第四段对话，回答第9小题。
( ) 9.What did Amy have for breakfast this morning? A.Some noodles.B.Some bread.C.Some bread and eggs. 听第五段对话，回答第10小题。
( ) 10.Where does Mike eat lunch? A.At school.B.At home.C.At a restaurant.听第六段对话，回答第11-12小题。
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凤城中学2016-2017第二学期七年级月考模拟试卷
一、选择题（共10小题，每小题2分，满分20分）
1．如图所示的图案是一些汽车的车标，可以看做由“基本图案”经过平移得到的是（）A．B．C．D．
2．点P（﹣1，5）所在的象限是（）
A．第一象限B．第二象限C．第三象限D．第四象限
3．有下列四个论断：①﹣是有理数；②是分数；③2.131131113…是无理数；④π是无理数，其中正确的是（）
A．4个B．3个C．2个D．1个
4．如果一个角的两边和另一个角的两边互相平行，那么这两个角之间关系为（）A．相等B．互补C．相等或互补D．不能确定
5．下列各式中，正确的是（）
A．=±4 B．±=4 C．=﹣3 D．=﹣4 6．估计的大小应在（）
A．7与8之间B．8.0与8.5之间C．8.5与9.0之间D．9与10之间7．如图，给出了过直线外一点作已知直线的平行线的方法，其依据是（）
A．同位角相等，两直线平行B．内错角相等，两直线平行
C．同旁内角互补，两直线平行D．两直线平行，同位角相等
8．如图，AD∥BC，∠B=30°，DB平分∠ADE，则∠DEC的度数为（）
A．30°B．60°C．90°D．120°
9．下列命题：
①若点P（x、y）满足xy＜0，则点P在第二或第四象限；
②两条直线被第三条直线所截，同位角相等；
③过一点有且只有一条直线与已知直线平行；
④当x=0时，式子6﹣有最小值，其最小值是3；
其中真命题的有（）
A．①②③B．①③④C．①④D．③④
10．如图，在平面直角坐标系中，一动点从原点O出发，按向上，向右，向下，向右的方向不断地移动，每移动一个单位，得到点A1（0，1），A2（1，1），A3（1，0），A4（2，0），…那么点A2017的坐标为（）
A．（1007,0）B．（1007,1）C．（1008.，0）D．（1008,1）
二、填空题：本大题共10小题，每小题2分，共20分．请将答案直接填在题中的横线上. 11．比较大小：6．（用“＞”或“＜”连接）
12．把命题“对顶角相等”改写成：如果，那么．13．已知2x﹣3是81的算术平方根，则x的值为．
14．在与之间的整数有．
15．如图，AD∥BC，BD平分∠ABC，∠A：∠ABC=2：1，则∠ADB=度．
16．如图，已知AB、CD相交于点O，OE⊥AB，∠EOC=28°，则∠AOD=度．
17．已知点P（x，y）在第三象限，且|x|=，|y﹣2|=3，则点P的坐标为．18．已知线段AB=3，AB∥x轴，若点A的坐标为（﹣2，3），则点B的坐标为．19．点P是平面直角坐标系中的一点，将点P向左平移3个单位长度，再向下平移4个单位长度，得到点P′的坐标是（﹣2，1），则点P的坐标是 .
20．如图，AB∥CE，CE∥DF，则∠BCD等于.
三.解答题
21.解方程：（3+3）（1）（2）（x﹣1）3=216．22．（1）（3+3）（2）﹣|2﹣|﹣．
23．如图，点E在直线DF上，点B在直线AC上，若∠AGB=∠EHF，∠C=∠D．
则∠A=∠F，请在横线上说明理由．（6分）
解：∵∠AGB=∠EHF
∠AGB=（对顶角相等）
∴∠EHF=∠DGF
∴DB∥EC
∴∠=∠DBA（两直线平行，同位角相等）
又∵∠C=∠D
∴∠DBA=∠D
∴DF∥（内错角相等，两直线平行）
∴∠A=∠F．
24．（5分）已知：如图，AB∥CD，∠A+∠D=180°，求证：AC∥DE．
25．如图，将三角形ABC向右平移5个单位长度，再向上平移3个单位长度请回答下列问题：（3+2+2分）
（1）平移后的三个顶点坐标分别为：A1，B1，C1；
（2）画出平移后三角形A1B1C1；
（3）求三角形ABC的面积．
26．按要求画图：（4分）
（1）作BE∥AD交DC于E；
（2）连接AC，作BF∥AC交DC的延长线于F；
（3）作AG⊥DC于G．
27．如图所示，A（1，0）、点B在y轴上，将三角形OAB沿x轴负方向平移，平移后的图形为三角形DEC，且点C的坐标为（﹣3，2）．
（1）直接写出点E的坐标；
（2）在四边形ABCD中，点P从点B出发，沿BC→CD移动．若点P的速度为每秒1个单位长度，运动时间为t秒，请解决以下问题，并说明你的理由：
①当t为多少秒时，点P的横坐标与纵坐标互为相反数；
②求点P在运动过程中的坐标（用含t的式子表示）
28．如图，在平面直角坐标系中，A（a，0），B（b，0），C（﹣1，2），且|a+2|+=0．（1）求a，b的值；
（2）①在x轴的正半轴上存在一点M，使△COM的面积=△ABC的面积，求出点M的坐标；
②在坐标轴的其它位置是否存在点M，使△COM的面积=△ABC的面积恒成立？若存在，请直接写出符合条件的点M的坐标．
29．如图，已知直线l1∥l2，且l3和l1，l2分别交于A，B两点，l4和l1，l2相交于C，D两点，点P在直线AB上，
（1）当点P在A，B两点间运动时，问∠1，∠2，∠3之间的关系是否发生变化？并说明理由；
（2）如果点P在A，B两点外侧运动时，试探究∠ACP，∠BDP，∠CPD之间的关系，并说明理由．
30．三角形ABC在平面直角坐标系中的位置如图所示，三个顶点A，B，C的坐标分别是（﹣1，4）（﹣4，﹣1）（1，1）．
（1）将三角形ABC向右平移5个单位长度，再向上平移1个单位长度，得到三角形A′B′C′，请画出平移后的三角形A′B′C′，并写出A′，B′，C′的坐标．
（2）若在第四象限内有一点M（4，m），试用含m的式子表示四边形AOMB′的面积．（3）在（2）的条件下，是否存在点M，使得四边形A′OMB′的面积与三角形A′B′C′的面积相等？若存在，请求出点M的坐标；若不存在，请说明理由．。