air第十七单元综合检测
格力公司环保产品中有害物质控制管理规定
标准修订记录表QJ环保产品中有害物质控制管理规定珠海格力电器股份有限公司发布目次前言 (II)引言 (III)1 范围 (1)2 规范性引用文件 (1)3 术语和定义 (1)4 Ⅰ级有害物质具体管理标准 (5)5 Ⅱ级有害物质具体管理标准 (23)6 有害物质环保标识管理及对供应商的要求 (25)附录A（资料性附录）RoHS同质材料计算方法及部分环境管理物质的详细信息 (26)附录B（资料性附录) 各主要国家和地区就有害物质使用实施的法律法规 (35)附录C（资料性附录) 免于注册的物质清单 (39)附录D（资料性附录）注册需提交的信息 (40)附录E（资料性附录) 我司重点物料关注表 (42)附录F(规范性附录) REACH限制物质清单及使用要求 (43)附录G（资料性附录）第1批十五种高关注物质的检测流程 (59)参考文献 (62)前言格力电器股份有限公司技术标准是公司标准化委员会发布的标准，是公司内部使用的技术法规性文件。
本标准规定了格力电器产品需要满足的有害物质控制标准，检验分析方法等,旨在使原材料供应商和公司内部生产采用一致的控制标准,以符合欧盟及其他有关国家和地区或客户对电子电器产品中有毒有害物质的控制要求。
本标准与上次下发的版本相比的主要变化如下:--根据欧盟RoHS豁免条款修订决议修改本标准中关于RoHS各项豁免的表述(见4.1中表4，表6，表8，表9）本标准的附录A、附录B、附录C、附录D、附录F为资料性附录，附录E为规范性附录。
本标准由珠海格力电器股份有限公司提出。
本标准由珠海格力电器股份有限公司标准化委员会归口.本标准由珠海格力电器股份有限公司制冷技术研究院起草。
本标准主要起草人：王茜、袁琪、曾伟强、蔡小洪、颜小琳、龙新文、郑文力、古文育、唐君、高海涛、刘思红、张华、岳琳琳。
本标准于2005年12月首次发布，2006年5月第一次修订，2006年5月第二次修订，2006年7月第三次修订,2006年7月第四次修订，2006年9月第五次修订，2007年3月第六次修订，2007年9月第七次修订，2008年5月第八次修订，2008年7月第九次修订，2008年11月第十次修订,2009年2月第十一次修订，2009年4月第十二次修订，2009年7月第十三次修订，2009年9月第十四次修订,2010年1月第十五次修订，2010年4月第十六次修订，2010年10月第十七次修订,本次第十八次修订。
浅谈压缩空气除油方法及其油含量检测方法
浅谈压缩空气除油方法及其油含量检测方法汪永坚，邢凯文(贝克欧(上海)净化系统科技有限公司，上海200120)［摘要］:压缩空气的除油和油含量的监测，是对于压缩空气应用中非常重要的点。
为了能够实现无油压缩空气的需求，通过凝聚式过滤器，活性炭吸附和无油催化裂解的方法，来对比除油的效果。
同时通过油含量检测仪，实时监测油的含量。
从而来确保压缩空气的油含量能够满足ISO8573-1一级油含量的标准。
［关键词］:压缩空气；无油；吸附；催化裂解；油含量检测中图分类号：TH45文献标志码：A文章编号：1006-2971(2020)06-0025-06Method of Obtaining Oil-free Compressed Air and Method ofMeasuring Oil Content of Compressed AirWANG Yong-jian,XING Kai-wen(BEKO Technologies(Shanghai)Co.,Ltd.,Shanghai200120,China)Abstract:Oil-free and oil content monitoring of compressed air are the very important points in compressed air applications.In order to realize the requirement of oil-free compressed air,the effects of oil removal by means of filter,activated carbon adsorption and oil-free catalytic cracking were compared in the paper.At the same time, through the oil content detector,real-t ime monitoring oil content can ensure that the oil content of the compressed air can meet the ISO8573-1level1oil content standard.Key words:compressed air;oil-free;adsorption;catalytic cracking;oil content test1引言随着经济和产业的发展，越来越多的企业开始重视压缩空气的品质，特别是压缩空气中的含油量。
高三英语一轮单元卷：第十七套 英语7 Units 3-5 B卷
一轮单元训练金卷·高三·英语卷（B）英语7 Units 3-5注意事项：1．答题前，先将自己的姓名、准考证号填写在试题卷和答题卡上，并将准考证号条形码粘贴在答题卡上的指定位置。
2．选择题的作答：每小题选出答案后，用2B铅笔把答题卡上对应题目的答案标号涂黑，写在试题卷、草稿纸和答题卡上的非答题区域均无效。
3．非选择题的作答：用签字笔直接答在答题卡上对应的答题区域内。
写在试题卷、草稿纸和答题卡上的非答题区域均无效。
4．考试结束后，请将本试题卷和答题卡一并上交。
第Ⅰ卷第一部分:听力(共两节,满分30分)略第二部分: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，从每题所给的四个选项（A、B、C和D）中选出最佳选项，并在答题卡上将该项涂黑。
AYears ago, I lived in a building in a large city. The next building was only a few feet away from mine. There was a woman who lived there, whom I had never met, yet I could see her seated by her window each afternoon, sewing or reading.After several months had gone by, I began to notice that her window was dirty. Everything was unclear through the dirty window. I would say to myself, “I wonder why that woman doesn’t wash her window. It really looks terrible.”One bright morning I decided to clean my flat, including washing the window on the te in the afternoon when I finished the cleaning, I sat down by the window with a cup of coffee for a rest. What a surprise! Across the way, the woman sitting by her window was clearly visible. Her window was clean!Then it dawned on me. I had been criticizing her dirty window, but all the time I was watching hers through my own dirty window.That was quite an important lesson for me. How often had I looked at andcriticized others through the dirty window of my heart, through my own shortcomings?Since then, whenever I wanted to judge someone, I asked myself first, “Am I looking at him through my own dirty window?” I try to clean the window of my own world so that I may see the world about me more clearly.21. “It dawned on me” in paragraph 4 probably means “________”.A. I knew it grew lightB. it cheered me upC. I began to understand itD. it began to get dark22. It’s clear that ___________.A. the writer had never met the woman beforeB. the writer often washed the windowC. they both worked as cleanersD. they lived in a small town23. From the passage, we can learn___________.A. one shouldn’t criti cize others very oftenB. one should often make his windows cleanC. one must judge himself before he judges othersD. one must look at others through his dirty windowsBOn Sunday 23 April, more than 30, 000 people participated in the 2017 London Marathon, running 26.2 miles (42.2 kilometers) around the city centre.The London Marathon has taken place every year since 1981. At the first one just6,225 people completed the course, and since then it has grown into one of the biggest sporting events in the world. It is one of the “World Marathon Majors”, which is a competition made up of six global marathon events. The overall male and female winners receive $ 1 million in prize money between them. There are eleven people who have run every London Marathon since it began—they call themselves the “Ever Presents”.This year, the winners of the London Marathon were surprisingly both from Kenya— Daniel Wanjiru, who finished in 2 hours and 5 minutes, and Mary Keitany, whose time was 2 hours and 17 minutes.However, most marathon runners are not professional athletes. They are amateurs who have trained for months to raise money for charity or just as a personal challenge. For example, Tom Harrison took three days just to reach the run’s halfway point, as he is crawlin g the course on his hands and knees dressed as agorilla(大猩猩), trying to raise money and attention for the charity “The Gorilla Organization”.Matthew Rees was another runner to encourage people, as he stopped just before the finish line to help David Wyeth run the last 200m. They did not know each other before, but Matthew saw that David was exhausted and possibly close to collapsing, and wanted to help him finish.Every year there are lots of touching stories like this from the London Marathon, and it is a huge achievement even to run the 26.2 miles!24. What do we know about London Marathon from the text?A. It has been held continuously for 37 years.B. Most of its runners are professional athletes.C. Each winner can receive $ 1 million in prize money.D. It’s the most influential sporting event in the world25. What makes the winners of London Marathon this year special?A. Their speedB. Their nationality.C. Their prize money.D. Their purpose.26. Why does the author mention the story of Tom Harrison?A. To tell us competitors can help each other.B. To prove some amateurs are not good runners.C. To indicate participation matters more than success.D. To show the sports event means charity for some people.27. What is the best title for the text?A. Touching Stories behind MarathonB. Impressive Marathon RunnersC. The London MarathonD. The History of the London MarathonCWhat should you think about when trying to find your career? You are probably better at some school subjects than others. These may show strengths that you can use in your work. A boy who is good at mathematics can use that in an engineering career. A girl who spells well and likes English may be good atoffice work. So it is important to know the subjects you do well in at school. On the other hand, you may not have any especially strong subjects but your records show a general satisfactory standard. Although not all subjects can be used directly in a job, they may have indirect value. A knowledge of history is not required for most jobs but if history is one of your good subjects you will have learned to remember facts and details. This is an ability that can be useful in many jobs.Your school may have taught you skills, such as typing or technical drawing, which you can use in your work. You may be good at metalwork or cookery and look for a job where you can improve these skills. If you have had a part-time job on Saturdays or in the summer, think what you gained from it. If nothing else, you may have learned how to get to work on time, to follow instructions and to get on with older workers. You may have learned to give correct change in a shop, for example. Just as important, you may become interested in a particular industry or career you see from the inside in a part-time job.Facing your weak points is also part of knowing yourself. You may be all thumbs when you handle tools; perhaps you are a poor speller or cannot add up a column of figures. It is better to face any weakness than to pretend they do not exist. Your school record, for instance, may not be too good, yet it is an important part of your background. You should not be apologetic about it but instead recognize that you will have a chance of a fresh start at work.28. What is the passage mainly about?A. The importance of working hard at school.B. Choosing a career according to one’s strengths.C. How to face one’s weakness.D. The value of school work.29. All the subjects may have direct value for job hunting EXCEPT ________.A. mathematicsB. EnglishC. historyD. technical drawing30. The writer thinks that a student’s part-time job is probably ________.A. a good way to find out his weak pointsB. of great use for his work in the futureC. one of the best ways of earning extra moneyD. a waste of time he could have spent on study31. From the passage we learn that if a student’s school performance is not good, he ________.A. should pay more attention to learning skills and developing abilitiesB. will be regretful about his bad resultsC. may also do well in his future workD. should restart his study at schoolDBatteries can power anything from small sensors to large systems. While scientists are finding ways to make them smaller but even more powerful, problems can arise when these batteries are much larger and heavier than the devices themselves. University of Missouri(MU) researchers are developing a nuclear energy source that is smaller, lighter and more efficient.“To provide enough power, we need certain methods with high energy density (密度)”，said Jae Kwon, assistant professor of electrical and computer engi neering at MU. “The radioisotope (放射性同位素) battery can provide power density that is much higher than chemical batteries.”Kwon and his research team have been working on building a small nuclear battery, presently the size and thickness of a penny, intended to power various micro/nanoelectromechanical systems (MNEMS). Although nuclear batteries can cause concerns, Kwon said they are safe.“People hear the word ‘nuclear’ and think of something very dangerous,” he said, “However, nuclear power sources have already been safely powering a variety of devices, such as pace-makers, space satellites and underwater systems.”His new idea is not only in the battery’s size, but also in its semiconductor(半导体). Kwon’s battery uses a liquid semiconductor rather than a solid semiconductor.“The key part of using a radioactive battery is that when you harvest the energy, part of the radiation energy can damage the lattice structure(晶体结构) of the solid semiconductor,” Kwon said, “By using a liquid semiconductor, we believe we can minimize that problem.”Together with J. David Robertson, chemistry professor and associate director of the MU ResearchReactor, Kwon is working to build and test the battery, In the future, they hope to increase the battery’s power, shrink its size and try with various other materials. Kwon said that battery could be thinner than the thickness of human hair.32. Which of the following is TRUE of Jae Kwon?A. He developed a chemical battery.B. He teaches chemistry at MU.C. He made a breakthrough in computer engineering.D. He is working on a nuclear energy source.33. Liquid semiconductor is used to ________.A. reduce the damage to lattice structureB. test the power of nuclear batteriesC. decrease the size of nuclear batteriesD. get rid of the radioactive waste34. According to Jae Kwon, his nuclear battery ________.A. uses a solid semiconductorB. will soon replace the present onesC. could be extremely thinD. has passed the final test35. The text is most probably a ________.A. book reviewB. science news reportC. newspaper adD. science fiction story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。
高中高一英语第十七单元教案：Nature (自然界与动物保护)
高中高一英语第十七单元教案：Nature (自然界与动物保护)教学目标1.学习有关自然界的英语词汇及其应用。
2.掌握有关动物保护的知识。
3.学会运用英语表达对自然界和动物保护的观点。
教学重点1.自然界的保护2.动物保护教学难点1.以英语表达对自然界和动物保护的观点。
2.如何使用英语词汇描述自然界和动物。
教学内容自然界保护1.词汇学习：environment, ecosystem, nature, pollution, climate change, biodiversity.2.看图讨论-环境保护：讨论破坏环境的行为，如工业排放，垃圾处理不当等，从而引导学生了解环境保护的重要性。
3.完成练习-对话：学生在对话中，练习使用相关单词–A: What can we do to help protect the environment?–B: We can start by reducing the amount of plastic and paper we use.–A: That’s a good idea. We can also carpool or bike to reduce air pollution.–B: Yes, and we should also recycle and properly dispose of hazardous materials.4.阅读理解-生态系统保护：介绍了保护生态系统的重要性，学生需要阅读文章并回答问题。
动物保护1.词汇学习：endangered, extinct, habitat, conservation, poaching, safari.2.看图讨论-动物保护：查看图片，了解濒危动物的情况，并讨论保护这些动物的重要性。
3.完成练习-阅读与写作：学生需要阅读关于保护黑犀牛的文章并回答问题。
接着写一篇短文，介绍保护任意一个濒危动物的方法和重要性。
机械设计制造及其自动化专业英语课后题
机械设计制造及其自动化专业英语课后题第一单元3. Aliuminum铝copper 铜nicke镍titanium 钛structural strength结构强度deep drawing拉伸加工4. 定义defition 力torce 轴axle(roller) 非金属nometal 结构structure 载荷load 用途use(application)性质properties(nature)(character)第二单元4.hardenability硬化性machinability可加工性cold drawn 冷拔steel sheet钢板percent reduction in area断面收缩率endurance limit疲劳极限rolled-steel shapes 轧制钢板corrosion resistance 抗腐蚀性rupture断裂5.低碳钢low-carbon 高强度钢hinger-strengt steel热处理heat treatment屈服强度yield strength弹性模量elastic modulus伸长率percentage elongation韧性toughness内应力internal stresses第三单元4.non-ferrous 非钢的stress-strain curve应力应变曲线yield point屈服点percentage elongation伸长率necking 颈缩sensitivity 灵敏性5.应变硬化strain hardening横截面cross-sectional area断面收缩率reduction in area比例极限limit of proportionality 屈服极限yield limit 延性ductiliy机械性质mechannicalpropertiece用..除..divide…by…第六单元3.tangential notes肤浅的事情flexible manufacturingsystem 柔性制造系统machine instruction机器指令economy of scale规模经济Hardwireyd logic controller硬固线逻辑控制transfer-line运输线，流水线numerically control(NC)数字控制direct numerical control(DNC)直接数字控制computer numerical control(CNC)计算机数字控制4.计算机辅助制造computer-aided manufacturing数控机床手工、半自动化或全自动化manal semiautomatic or full automation 尽管机械制造业一直在持续发展，但知道20世纪50年代才出现又一个重大发展。
有限元分析网格单元的选用原则
收稿日期：2020-05-13 作者简介：杨俊生（1987—），男，硕士，研究方向：机械设计及结构有限元分析与应用。
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有限元分析网格单元的选用原则
总 715 期第十七期 2020 年 6 月
河南科技 Journal of Henan Science and Technology
信息技术
有限元分析网格单元的选用原则
杨俊生
（法雷奥汽车空调湖北有限公司，湖北 荆州 434000）
摘 要：有限元分析可以对企业产品设计做出快速响应，有效节省昂贵的现场试验费用，缩短产品开发周期，
三结点二次空间梁 单元 B32
杂交单元 B32H、 开口截面 B32OS
注：在连续体单元类型中，楔形单元并未列出，当实体划分六面体单元时，采用平滑过渡，允许少量使用楔形体单元，在实际运用中不推荐将实体划分为 楔形体单元，各单元的几何描述请参见 Abaqus 帮助文件。
Abstract: Finite element analysis can quickly respond to enterprise product design, effectively save expensive field test costs, shorten product development cycles, and advance time to market. This paper summarized the grid cell types, qualified evaluation indicators and selection principles, and selected the best grid cell type for different analy⁃ sis types to avoid repeated redundant cycles. Practical cases show that a reasonable choice of grid type can effectively shorten the solution cycle. Keywords: grid cell type；gridding；conformity assessment；selection principle；solution period
第一篇 Unit17
Unit 17状语从句Ⅰ.单项填空1．—Why didn’t you try your best to get on the bus?—I tried to, but ________ I could, it started moving.A．until B．when C．after D．before2．Owen wouldn’t eat anything ________ he cooked it himself.A．until B．since C．unless D．while3．This photo of mine was taken ________ stood the famous Eastern Bright Pearl in Shanghai.A．which B．in which C．where D．there4．You should make it a rule to leave things ________ you can find them again.A．when B．where C．which D．then5．Some children are mad over video games. They just can’t tear themselves away from them ________ they start.A．since B．once C．even if D．as6．In the north, summer is short and cool at night, ________ winter is not so bad with heating.A．while B．though C．if D．for7．It was foolish of you to take a taxi ________ you could easily walk there in five minutes.A．before B．till C．so that D．when8．You must keep on working in the evening, ________ you are sure you can finish the task in time.A．as B．if C．when D．unless9．Allow children the space to voice their opinions, ________ they are different from your own.A．until B．even if C．unless D．as though10．The old tower must be saved, ________ the cost.A．however B．whatever C．whichever D．whereverⅡ.完形填空As long as I can remember I was overweight.Actually that isn’t entirely true because I can 1 remember one summer when I was“normal”．After that it seems like I was always 2__.I wanted so 3 to be like all of the other kids.I would look in the mirror with my shirt off 4 cover my stomach， 5 it wasn’t there just so I could keep a positive 6 of myself.I can remember when my mom first found out I weighed over 200 pounds.I was 12 and had to go to the asthma(哮喘)doctor.When I got on the 7 it read 212 pounds.My heart8 .I 9 to her because I didn’t want her to find out.I was 10 of being overweight and afraid of her 11 ，which was a fear in my own mind rather than a reality.I can remember going to the“12 ”store with my grandma so I could get an outfit for my 8th grade graduation.They 13 me at size 46.I couldn’t believe it.I was used to the 40s that I had let down around my hips where most kids of my 14 wore them.Can you 15 being a size 46 at 14 years old？It took me a week to look myself in the face again without self pity.Not only was the high weight bad for my physical health，but it was 16 to my mental health.I never 17 how it made me shy，lonely or depressed.I kept all of these bottled up inside because I knew that I would just be 18 as the depressed fat kid who wanted everyone to feel 19 for him.And you know they were right not to feel sorry for me because it was my __20__：I overate and was lazy.1．A.never B．also C．hardly D．soon2．A.overweight B．healthy C．energetic D．easygoing3．A.slowly B．easily C．badly D．early4．A.but B．or C．then D．and5．A.managing B．pretending C．ensuring D．deciding6．A.view B．look C．image D．quality7．A.platform B．stairs C．table D．scale8．A.broke B．sank C．pumped D．stopped9．A.lied B．replied C．explained D．whispered10．A.fond B．tired C．ashamed D．accused11．A.judgement B．comfort C．attempt D．concept12．A.cheap&easy B．fast&right C．big&tall D．good&worthy13．A.showed B．dressed C．counted D．measured14．A.sex B．age C．race D．time15．A.confirm B．suggest C．approve D．imagine16．A.tough B．harmful C．dangerous D．serious17．A.admitted B．considered C．wondered D．doubted18．A.honored B．blamed C．adopted D．labeled19．A.sorry B．secure C．proud D．guilty20．A.idea B．decision C．fault D．intentionⅢ.阅读理解Why play games？Because they are fun，and a lot more besides.Following the rules...planning your next move...acting as a team member...these are all “game”ideas that you will come across throughout your life.Think about some of the games you played as a young child，such as rope-jumping and hide-and-seek.Such games are entertaining and fun.But perhaps more importantly，they translate life into exciting dramas that teach children some of the basic rules they will be expected to follow the rest of their lives，such as taking turns and cooperating(合作)。
英语初级听力十七单元听力文本
01 Woman: I'd like the continental breakfast, please.Waiter: Yes, madam. What sort of fruit juice would you like to start with? Woman: The pineapple juice.Waiter: Would you prefer honey, marmalade or jam?Woman: Oh, marmalade, please.Waiter: And what would you like to drink, madam?Woman: Coffee, please, black coffee.02 Head Waiter: "Deep Sea Restaurant". Head Waiter. Good morning. Woman: I'd like to reserve a table for five.Head Waiter: And was that today, madam?Woman: Of course.Head Waiter: At what time, madam?Woman: Oh, about three o'clock, I suppose.Head Waiter: I'm afraid we only serve lunch until 3 pm, madam. Woman: Oh well, two o'clock then, and it must be by a window.Head Waiter: Very good, and what name, please?Woman: Bellington, Mrs. Martha Bellington.Head Waiter: Very good, Mrs. Bellington. A table for five at 2 pm today.03 Head Waiter: "Deep Sea Restaurant." Good morning.Man: Do you have a table for two this evening?Head Waiter: Certainly, sir. At what time was it?Man: What time does the band start playing?Head Waiter: At 8 pm, sir.Man: Right. Make it 7:30 then, and near the dance floor if possible. Head Waiter: Very good, sir. And what name, please?Man: Kryzkoviak.Head Waiter: Could you just repeat that, please?Man: Kryzkoviak, that's Polish, you know. K-R-Y-Z-K-O-V-I-A-K. Head Waiter: Yes. Thank you, Mr. Kryzkoviak. We look forward to seeing you.04 —What shall we do tonight?—How about the cinema?—That's a good idea. We haven't been for ages.—What would you like to see?—Oh, I don't know. Spy Story?—Spy Story? That terrible, old film?—But it's got James Perevelle in it. I'm still trying to write a story about him, you know.—But I've seen it before.—Never mind. Perhaps you'll like it better the second time.(In the cinema)—(You look so beautiful in that dress. Why do you have to die?) —Would you like an ice cream?—Shhhh. No, thank you.—(Let's run away together and forget about the whole world.)—What about some chocolates?—Shut up! I'm watching the film.—Well, I'm gonna get myself some chocolates.—(Just you and me and nobody else.)(After the film)—That was really wonderful.—Wonderful? Don't be silly.—He's a fantastic actor.—Do you feel alright?—Of course, I do.—I just wondered. You don't usually like rubbish films like that.—It wasn't rubbish at all. Some of the films you like are really terrible, though.05 The spaceship flew around the new planet several times. The planet was blue and green. They couldn't see the surface of the planet because there were too many white clouds. The spaceship descended slowly through the clouds and landed in the middle of a green forest. The two astronauts put on their space suits, opened the door, climbed carefully down the ladder, and stepped onto the planet.The woman looked at a small control unit on her arm. 'It's all right,' she said to the man. 'We can breathe the air ... it's a mixture of oxygen and nitrogen.' Both of them took off their helmets and breathed deeply.They looked at everything carefully. All the plants and animals looked new and strange. They could not find any intelligent life.After several hours, they returned to their spaceship. Everything looked normal. The man switched on the controls, but nothing happened. 'Something's wrong,' he said. 'I don't understand ... the engines aren't working.' He switched on the computer, but that didn't work either. 'Eve,' he said, 'we're stuck here ... we can't take off!''Don't worry, Adam,' she replied. 'They'll rescue us soon.'3 01 There were angry scenes yesterday outside No. 10 Downing Street as London school teachers protested about their salaries and conditions. London teachers are now in the second week of their strike for better pay. Tim Burston, BBC correspondent for education was there.。
高三英语一轮单元卷：第十七套_英语7_units_3-5_b卷 有答案
一轮单元训练金卷·高三·英语卷（B）英语7 Units 3-5注意事项：1．答题前，先将自己的姓名、准考证号填写在试题卷和答题卡上，并将准考证号条形码粘贴在答题卡上的指定位置。
2．选择题的作答：每小题选出答案后，用2B铅笔把答题卡上对应题目的答案标号涂黑，写在试题卷、草稿纸和答题卡上的非答题区域均无效。
3．非选择题的作答：用签字笔直接答在答题卡上对应的答题区域内。
写在试题卷、草稿纸和答题卡上的非答题区域均无效。
4．考试结束后，请将本试题卷和答题卡一并上交。
第Ⅰ卷第一部分:听力(共两节,满分30分)略第二部分: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，从每题所给的四个选项（A、B、C和D）中选出最佳选项，并在答题卡上将该项涂黑。
AYears ago, I lived in a building in a large city. The next building was only a few feet away from mine. There was a woman who lived there, whom I had never met, yet I could see her seated by her window each afternoon, sewing or reading.After several months had gone by, I began to notice that her window was dirty. Everything was unclear through the dirty window. I would say to myself, “I wonder why that woman doesn’t wash her window. It really looks terrible.”One bright morning I decided to clean my flat, including washing the window on the te in the afternoon when I finished the cleaning, I sat down by the window with a cup of coffee for a rest. Whata surprise! Across the way, the woman sitting by her window was clearly visible. Her window was clean!Then it dawned on me. I had been criticizing her dirty window, but all the time I was watching hers through my own dirty window.That was quite an important lesson for me. How often had I looked at and criticized others through the dirty window of my heart, through my own shortcomings?Since then, whenever I wanted to judge someone, I asked myself first, “Am I looking at him through my own dirty window?” I try to clean the window of my own world so that I may see the world about me more clearly.21. “It dawned on me” in paragraph 4 probably means “________”.A. I knew it grew lightB. it cheered me upC. I began to understand itD. it began to get dark22. It’s clear that ___________.A. the writer had never met the woman beforeB. the writer often washed the windowC. they both worked as cleanersD. they lived in a small town23. From the passage, we can learn___________.A. one shouldn’t criticize others very oftenB. one should often make his windows cleanC. one must judge himself before he judges othersD. one must look at others through his dirty windowsBOn Sunday 23 April, more than 30, 000 people participated in the 2017 London Marathon, running 26.2 miles (42.2 kilometers) around the city centre.The London Marathon has taken place every year since 1981. At the first one just6,225 people completed the course, and since then it has grown into one of the biggest sporting events in the world. It is one of the “World Marathon Majors”, which is a competition made up of six global marathon events. The overall male and female winners receive $ 1 million in prize money between them. There are eleven people who have run every London Marathon since it began—they call themselves the “Ever Presents”.This year, the winners of the London Marathon were surprisingly both from Kenya— Daniel Wanjiru, who finished in 2 hours and 5 minutes, and Mary Keitany, whose time was 2 hours and 17 minutes.However, most marathon runners are not professional athletes. They are amateurs who have trained for months to raise money for charity or just as a personal challenge. For example, Tom Harrison took three days just to reach the run’s halfway point, as he is crawling the course on his hands and knees dressed as a gorilla(大猩猩), trying to raise money and attention for the charity “The Gorilla Organization”.Matthew Rees was another runner to encourage people, as he stopped just before the finish line to help David Wyeth run the last 200m. They did not know each other before, but Matthew saw that David was exhausted and possibly close to collapsing, and wanted to help him finish.Every year there are lots of touching stories like this from the London Marathon, and it is a huge achievement even to run the 26.2 miles!24. What do we know about London Marathon from the text?A. It has been held continuously for 37 years.B. Most of its runners are professional athletes.C. Each winner can receive $ 1 million in prize money.D. It’s the most influential sporting event in the world25. What makes the winners of London Marathon this year special?A. Their speedB. Their nationality.C. Their prize money.D. Their purpose.26. Why does the author mention the story of Tom Harrison?A. To tell us competitors can help each other.B. To prove some amateurs are not good runners.C. To indicate participation matters more than success.D. To show the sports event means charity for some people.27. What is the best title for the text?A. Touching Stories behind MarathonB. Impressive Marathon RunnersC. The London MarathonD. The History of the London MarathonCWhat should you think about when trying to find your career? You are probably better at some school subjects than others. These may show strengths that you can use in your work. A boy who is good at mathematics can use that in an engineering career. A girl who spells well and likes English may be good at office work. So it is important to know the subjects you do well in at school. On the other hand, you may not have any especially strong subjects but your records show a general satisfactory standard. Although not all subjects can be used directly in a job, they may have indirect value. A knowledge of history is not required for most jobs but if history is one of your good subjects you will have learned to remember facts and details. This is an ability that can be useful in many jobs.Your school may have taught you skills, such as typing or technical drawing, which you can use in your work. You may be good at metalwork or cookery and look for a job where you can improve these skills. If you have had a part-time job on Saturdays or in the summer, think what you gained from it. If nothing else, you may have learned how to get to work on time, to follow instructions and to get on with older workers. You may have learned to give correct change in a shop, for example. Just as important, you may become interested in a particular industry or career you see from the inside in a part-time job.Facing your weak points is also part of knowing yourself. You may be all thumbs when you handle tools; perhaps you are a poor speller or cannot add up a column of figures. It is better to face any weakness than to pretend they do not exist. Your school record, for instance, may not be too good, yet it is an important part of your background. You should not be apologetic about it but instead recognize that you will have a chance of a fresh start at work.28. What is the passage mainly about?A. The importance of working hard at school.B. Choosing a career according to one’s strengths.C. How to face one’s weakness.D. The value of school work.29. All the subjects may have direct value for job hunting EXCEPT ________.A. mathematicsB. EnglishC. historyD. technical drawing30. The writer thinks that a student’s part-time job is probably ________.A. a good way to find out his weak pointsB. of great use for his work in the futureC. one of the best ways of earning extra moneyD. a waste of time he could have spent on study31. From the passage we learn that if a student’s school performance is not good, he ________.A. should pay more attention to learning skills and developing abilitiesB. will be regretful about his bad resultsC. may also do well in his future workD. should restart his study at schoolDBatteries can power anything from small sensors to large systems. While scientists are finding ways to make them smaller but even more powerful, problems can arise when these batteries are much larger and heavier than the devices themselves. University of Missouri(MU) researchers are developing a nuclear energy source that is smaller, lighter and more efficient.“To provide enough power, we need certain methods with high energy density (密度)”，said Jae Kwon, assistant professor of electrical and computer engineering at MU. “The radioisotope (放射性同位素) battery can provide power density that is much higher than chemical batteries.”Kwon and his research team have been working on building a small nuclear battery, presently the size and thickness of a penny, intended to power various micro/nanoelectromechanical systems (MNEMS).Although nuclear batteries can cause concerns, Kwon said they are safe.“People hear the word ‘nuclear’ and think of something very dangerous,” he said, “However, nuclear power sources have already been safely powering a variety of devices, such as pace-makers, space satellites and underwater systems.”His new idea is not only in the battery’s size, but also in its semiconductor(半导体). Kwon’s battery uses a liquid semiconductor rather than a solid semiconductor.“The key part of using a radioactive battery is that when you harvest the energy, part of the radiation energy can damage the lattice structure(晶体结构) of the solid semiconductor,” Kwon said, “By using a liquid semiconductor, we believe we can minimize that problem.”Together with J. David Robertson, chemistry professor and associate director of the MU Research Reactor, Kwon is working to build and test the battery, In the future, they hope to increase the battery’s power, shrink its size and try with various other materials. Kwon said that battery could be thinner than the thickness of human hair.32. Which of the following is TRUE of Jae Kwon?A. He developed a chemical battery.B. He teaches chemistry at MU.C. He made a breakthrough in computer engineering.D. He is working on a nuclear energy source.33. Liquid semiconductor is used to ________.A. reduce the damage to lattice structureB. test the power of nuclear batteriesC. decrease the size of nuclear batteriesD. get rid of the radioactive waste34. According to Jae Kwon, his nuclear battery ________.A. uses a solid semiconductorB. will soon replace the present onesC. could be extremely thinD. has passed the final test35. The text is most probably a ________.A. book reviewB. science news reportC. newspaper adD. science fiction story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。
2021年石家庄第十七中学高三英语模拟试题及答案解析
2021年石家庄第十七中学高三英语模拟试题及答案解析第一部分阅读（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、D四个选项中选出最佳选项AThere are different types of money-saving apps, such as JD Finance, Yu’E Bao, Ant Financial, and all of them work in different ways. Here are 3 of the best apps that can help you save much money.Capital One ShoppingCapital One Shopping can compare prices automatically as you shop online. As you add items to your cart at an online seller, this app will search the web for better deals and coupon codes(优惠码). You can follow the links to other sellers offering a better price and use the available codes tosave. You can even use this app while shopping at physical shops.ParibusThere’s nothing more upsetting than buying something and then seeing it for sale at a lower price a few days later. Wouldn’t it be nice to get that money back? Now you can. Paribus helps you get money back by tracking your purchases from major stores and discussing refunds. It also helps you get compensated (补偿) for late deliveries and makes sure you don’t leave it too late to return anything you bought.DigitIf you can’t figure out how much you can afford to save, Digit will analyze your spending habits and spare a certain amount to your savings. If the appknows you have spare money to save, then it will be moved automatically, and if you don’t, it will stop, so there’s no risk of being left with no cash for the basics. You can sign up for a free trial for a month, and after that, the monthly service charge is $5.1. If you want your money back, what app will you choose?A. Digit.B. Paribus.C. Yu’E Bao.D. Capital One Shopping.2. What can you do by using Digit?A. Offer the most favorable price.B. Track detailed information of goods.C. Analyze spending habits to save money.D. Compare prices of products while shopping.3. What is the purpose of the text?A. To introduce useful apps for saving money.B. To advertise various products online.C. To improve the power of spending.D. To help to manage spare money.BLast summer, Maria and her mother moved from their house in the countryside to a flat building in Chicago. Maria really liked some things about the city, but she missed her house and yard in the countryside.One day, Maria was in her flat building when she noticed her neighbor, Mrs. Garcia, carrying a gardening tool and a bag of soil. Maria wondered how Mrs. Garcia was able to garden in the city.“My mom used to grow the most delicious vegetables, and I know she misses her garden now that we don’t have a yard,” said Maria.Mrs. Garcia laughed. “I’ll show you,” she said.Maria thought that Mrs. Garcia would take her to the park, but she took her to the roof. When the door opened, Maria was surprised to see rows of flowers and vegetables on the roof.“What a wonderful garden!” said Maria.Mrs. Garcia told Maria that for a long time the roof was just an empty space. Then some of the people in the building asked the owners to turn it into a community garden. The building owners liked the idea because the plants not only helped to keep the air clean, but they also helped to keep the building cooler during warmer weather.“I plant flowers in my own place,” Mrs. Garcia said, “but you would be surprised by how different the plants are up here. Some people grow vegetables just like your mom. You can do some of the same things in the city as in the countryside. You just have to be creative!”4. Where did Mrs. Garcia take Maria to one day?A. The park.B. The roof.C. The garden in front of her house.D. The countryside.5. Which of the following is NOT the good side of the community garden?A. It made the building stronger.B. It helped keep the air clean.C. It helped keep the building cooler.D. It used the empty space well.6. After Maria visited the garden, she would most probably ask her mom to ________.A. go back to the countrysideB. pick flowers from the gardenC show her around the park D. grow vegetables on the roof7. What is the best title for this passage?A. A Creative LadyB. An Empty RoofC. A Rooftop GardenD. A Special BuildingCAvi Loeb, a scientist, believes that we are not alone in the universe. The belief fits withLoeb's alien spaceship theory that at least one alien spaceship might be flying over the orbit of Jupiter, which won the international attention last year.Astronomers inHawaiifound the first known interstellar object in late 2017. It was a bit of light moving so fast past the sun that it could only have come from another star. Almost every astronomer on the planet was trying to figure out how the object, called “Oumuamua” got to our far-away part of the Milky way galaxy. “One possibility is that ‘Oumuamua’ is debris from an advanced technological equipment,” Loeb said. “Technology comes from another solar system just showed up at our door. ”“‘Oumuamua’ is not an alien spaceship,” Paul Sutter, another scientist wrote. He suggested Loeb was seeking publicity. Most scientists think “Oumuamua” is some sort of rock. They think it could be an icy wandering comet.Loeb says that “Oumuamua's” behavior means it can't be a block of rock shaped like a long photo. He thinks it's more likely an object that's very long and thin, perhaps like a long pancake or a ship's sail. Loeb says that if someone shows him evidence thatcontradictshis beliefs, he will immediately give in.Loeb believes himself a truth-teller and risk-taker in an age of very safe, too-quiet scientists. “The worst thing that can happen to me is that I would be relieved of my management duties, and that would give me even more time to focus on science,” Loeb says. He said he wouldn't mind giving up all the titles he had and returning to the Israeli farming village where he grew up.8. What does Loeb say about “Oumuamua”?A. It is an icy comet.B. It looks like a long photo.C. It is actually some sort of rock.D. It may come from another alien civilization.9. What does the underlined word “contradicts” in paragraph 4 probably mean?A.Goes against.B. Relies on.C. Turns to.D. Searches for.10. What do you think of Loeb?A. He is foolish.B. He is unsatisfied with his titles.C. He is a firm believer in scientific truth.D. He is uncertain about his career future.11. What's the best title for the text?A. Have Aliens Paid a Visit in Spaceships?B. Do We Really Know about Space Theory?C. Scientists Are Working on High TechnologyD. Astronomers Are Encouraging Space TravelDTourism is often about seeking deeper emotional and personal connections with the world around us. Not all travel experiences, however, need to take place in the real world. With the evolution of virtual reality(VR) technology, tourism will increasingly become a combination of physical and virtual worlds. VR may even remove the need to travel entirely.But can a VR experience really equal a real world one? Many experts believe it can. Studies have shown that our brains have an inbuilt VR-like mechanism that enables us to live imagined experiences. Much of our waking life is spent thinking about either the past or the future. This is known as" mind wandering". During these events we' re not paying attention to the current world around us. Instead, we' re recalling memories, or creating and processing imagined futures.When engaged in mind wandering, our brains process these mental images using the same pathways used to receive inputs from the real world. So, the imagined past or future can create emotions and feelings similar to how we react to everyday life. VR can create these same feelings.While critics might argue that a virtual experience will never match reality, there are several ways VR tourism could make a positive contribution. Firstly it could help protect sensitive locations from over-tourism. In recent years famous sites such as Maya Bay in Thailand, and Cambodia's Angkor Wat Temples have had to limit the number of visitors because of their negative impact. These places are now producing their own VR experiences that will allow tourists to pass through virtual models of the sites.Virtual reality may also allow people back in time, to experience historical events, visit ancient cities, and even to walk among dinosaurs.Finally, in a world where many people suffer from stress and depression due to overwork, virtual tourism may provide a cheap and convenient way for people to take brief holidays to otherwise unreachable destinations and recharge their batteries, without ever leaving their homes.It sounds like science fiction but it's already happening. As virtual technology improves and as people continue to demand new and interesting experiences, expect more virtual tourism, both in combination with the real world and instead of it.12. What is driving the development of virtual tourism?A. Companies seeking to make more money.B. Improvements in virtual reality technology.C. People's demand for more shared experiences.D. People's deeper understanding of the physical world.13. Which of the following best describes "mind wandering"?A. The brain processes which help people think VR is real.B. The way the brain processes inputs from the real world.C. Brain activities focusing on past or future events.D. Experiences coming from a person's imagination.14. What does the underlined word "it" in the last paragraph refer to?A. Science fiction.B. Virtual technology.C. Virtual tourism.D. The real world.15. What is the purpose of the passage?A. To describe the advantages of VR tourism.B. To give suggestions for reducing over-tourism.C. To encourage people to develop VR technology.D. To argue VR tourism will replace the real world travel.第二节（共5小题；每小题2分，满分10分）阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。
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第十七单元综合检测 (A级，45分钟，满分100分)
一、单项选择(2分×15) 1. Not beautiful, the office building is now. A. looked; being rebuilt B. looking; rebuilt C. being looked; rebuilding D. looking; being rebuilt 2. in the newspapers, the new president will take office next week. A. It is reported B. Which is reported C. It is reporting D. As is reported 3. She was so angry at all he was doing she walked out, and closed the door behind her. A. that; that B. what; that C. what; as D. what; which 4. Everybody knows that coal electricity for agriculture and industry. A. is used to produce B. used to produce C. is used to producing D. used for producing 5. -“How soon will you finish doing the work?” -“Just , ” he answered, without stopping it. A. in one and a half hours; working on B. after an hour and a half; working at C. for an hour and half; to work to D. within one and half hours; to work at 6. It is said that money at present for the Hope Project. A. is collected B. has collected C. is being collected D. has been collected 7. In several months' time, we'll see a new lake in the park. -Right. It . A. is made B. is being made C. has made D. has been made 8. Interestingly enough, the two brothers have much in . A. ordinary B. common C. general D. particular 9. Twenty years later, the soldiers in the battle gathered in the city. A. lived B. alive C. live D. lively 10. The play at present is attractive. So many people are watching it. A. being performed B. performed C. having performed D. having been performed 11. Riding a bicycle is in our country. As , my father went to work by bike. A. usual; usual B. common; usual C. usual; common D. common; common 12. that he learned some Chinese as a child. A. He is believing B. He is believed C. It believes D. It is believed 13. -When shall we meet again? -Make it any day you like; it’s all to me. A. similar B. the same C. suitable D. familiar 14. -Excuse me, what time is it now? -Sorry, my watch . It at the shop. A. isn't working; is being repaired B. doesn't work; is being repaired C. isn't working; is repaired D. doesn't work; is repaired 15. in the newspapers that the new president will take office next week. A. It is reported B. Which is reported C. It is reporting D. As is reported 二、完形填空(1. 5分×20) Tom's family just moved to a new town. Some days later 1 Tom and his classmates were having a lesson, the teacher called Tom to 2 desk and began to ask him a lot of questions. 3 Tom could not answer 4 of them. The teacher then 5 to ask him some very 6 questions so that he could get a few right. “ 7 is the Great Wall?” she asked. Tom 8 for some time and 9 answered, “In Egypt. ” “No, it is in 10 , ” the teacher said. She was getting a little 11 now, but was trying not 12 it. Then she asked, “Who was the 13 president of the United States?” Tom thought for a long time, but didn't 14 anything. Then the teacher got very angry and 15 , “George Washington!” Tom turned back and began to walk towards his 16 . “Come 17 !” the teacher said, “I didn't tell you to 18 . ” “Oh, 19 , ” Tom said, “I thought you were calling 20 student. ” 1. A. if B. when C. though D. after 2. A. its B. his C. her D. my 3. A. and B. but C. or D. so that 4. A. any B. some C. all D. every 5. A. decided B. tired C. started D. wanted 6. A. easy B. funny C. good D. strange 7. A. How B. Who C. Where D. What 8. A. stood B. looked C. waited D. thought 9. A. so B. soon C. then D. just 10. A. Egypt B. China C. India D. Japan 11. A. careless B. interested C. tired D. angry 12. A. say B. prove C. show D. see 13. A. first B. second C. third D. fourth 14. A. speak B. talk C. say D. tell 15. A. cried B. laughed C. called D. shouted 16. A. house B. room C. table D. seat 17. A. here B. back C. out D. up 18. A. come B. go C. stop D. stay 19. A. that's good B. that's all right C. I'm sorry D. you're mistaken 20. A. another B. other C. the other D. the next 三、阅读理解(2分×10) A June came and the hay was almost ready for cutting. On Midsummer's Eve, which was a Saturday, Mr. Jones went into Willington and got so drunk at the Red Lion tha the did not come back till midday on Sunday. The men had milked the cows in the early morning and then had gone out rabbiting, without bothering(麻烦) to feed the animals. When Mr. Jones got back he immediately went to sleep on the living-room sofa with the “News of the World” over his face, so that when evening came , the animals were still not fed. At last, they could stand no longer. One of the cows broke into the door of the storehouse with her horns(角) and all the animals began to help themselves to the grains. It was just then that Mr. Jones woke up. The next moment he and his four men were in the storehouse with whips in their hands, whipping in all directions. This was more than the hungry animals could bear. Together, though nothing of the kind had been planned beforehand, they jumped upon their toasters. Jones and his men suddenly found themselves being struck with their horns and kicked from all sides. The situation was quite out of their control. They had never seen animals act like this before, and this sudden uprising of creatures whom they were used to beating and whipping just as they chose, frightened them. After only a moment or two they gave up trying to defend themselves. A minute later all five of them were in full fright down the road, with the animals running after them joyfully. 1. Which of the following is true according to the story? A. Willington was the name of a hotel. B. Red Lion was the name of a restaurant. C. News of the World was a TV programme. D. Store-house is a place to feed the cows. 2. That four men didn't feed the cows because . A. the cows fed themselves B. Mr. Jones wasn't at home C. they went hunting for rabbits D. they had nothing for the cows 3. The cows broke into the storehouse to feed themselves because . A. they were so angry at their masters B. they wanted to fight with the men C. they wanted to go on strike D. they were too hungry 4. The cows jumped upon their masters because . A. they were not fed B. they were so hungry C. they were whipped so hard by them D. they were so happy 5. What is the best title for the story?