2017年中国成人在线外语教育行业白皮书

实现终端用户消费，独特商业模式实现突围《中国传媒科技》：首先恭喜朱博士和清睿教育，清睿登陆新三板。

关于上市对于清睿和您个人来说，意义在哪里？上市未来的目标是什么？朱奇峰：我们的目标是能够让更多的人了解我们的工作，因为这件事情一定是推进中国教育信息化的，我们的工作值得让大家了解。

清睿基于人工智能技术打造的智能教练和基于智能辅导和评价的网络学校空间学习社区已经赢得了中央电教馆和教育学会外语教学专业委员会的权威鉴定，被专家们鉴定为为“国内外首创和领先”，这对我们来说是巨大的鼓舞。

通过技术带来教育的革命，转变整个中小学学生9年或者是12年的核心生活。

如果这件事情真正做到了，对整个国家的竞争力是尤为重要的事情。

我们现在是默默地做，一些阶段性的成果还是非常初步的，但我们做这件事情的意义，值得让大家了解。

《中国传媒科技》：清睿教育从2012年创立到2015年底顺利上市，这其中您遭遇到的最大难题是什么？朱奇峰：我们整个发展是比较顺利的，2012年在南京深圳试点成功；2013年全国拓展百城千校，实现盈利；2014年进入2600多所学校，获得教育系统全面认可；现在有5000多所学校，600万用户在使用清睿教育口语100等产品。

3年总软件产智能语音+互联网教育的成功之道——专访清睿国际教育集团董事长朱奇峰博士本刊记者丨刘胜男12月17日，清睿国际教育集团成功登陆新三板，荣登中国中小学互联网+教育领域第一股。

清睿教育以领先的智能语音技术为基础，创造出了令人耳目一新的产品形态和价值定位，受到资本市场瞩目。

随着新三板挂牌，俞敏洪、王亚伟，千合资本、新东方、软银中国等众多一流VC构成的强大股东阵容浮出水面。

据了解，目前清睿教育的“口语100”产品已走进全国260个城市的6000多所中小学，并拥有成熟的商业模式。

在大部分互联网教育公司烧钱的背景下，清睿教育是中国K12互联网教育领域唯一一家连续3年盈利，并率先上市的在线教育企业。

解读“四位一体”“4P”课堂教学法助学生记单词作者：张春苗来源：《新课程·下旬》2017年第11期摘要：“4P”课堂教学法具有其独特性，就是打好“双基”，主张“抓中间，促两头”，坚持“面向大多数学生”，培养学生自主学习能力的英语教学法。

英语的每一种课型都可以用4P教学法来进行。

针对目前学生学习英语的现状，学英语有困难，记不住单词，认真解读“四位一体”“4P”课堂教学法，希望对学生学习英语有所帮助。

关键词：“4P”课堂教学法；词汇教学；英语语境一、解读“四位一体”“4P”课堂教学法包天仁教授的“四位一体”“4P”课堂教学法，这里的“4P”指的是：preparation（准备），presentation（呈现），practice（操练）和production（产出）。

第一个“P”是preparation（4分钟左右）是后3个“P”的基础。

准备包括教师的准备（备课）和学生的准备（自主学习）。

英语“四位一体”教学法指出，上课时教师首先要检查上一堂课留下的软作业（soft homework）。

软作业的范围很广泛，包括预习生词、短语、语法、课文，也可以给学生一个topic或project，让学生观察、思考、归纳、总结。

软作业非常符合素质教育的精神，能培养学生的自主学习能力。

上课时，教师从检查学生的软作业开始，组织学生讨论，自然导入新课。

这是一种比warming up更高效的课前准备。

第二个“P”是presentation（20分钟左右），呈现就是授课。

在这个过程当中，教师起主导作用，要充分体现learning-centred，保证课堂教学过程的高效性。

英语课堂教学形式可以多样化，但主要采用讲授法，老师主要通过口头语言向学生描绘情景，叙述事实，阐明规则，举出例子，让学生理解并能举一反三。

老师要充分利用好现代教学设备，如音响、多媒体技术等手段进行教学。

英语“4P”教学法是要求师生双边活动。

它遵循的是输入型教学模式，关注的是老师put in，take in之后，学生的input，intake效果如何。

论综合英语课程课堂教学的TELOS模式1--一项基于教学法试验的报告华东师范大学邹为诚摘要：本研究报告了一项历时两年的综合英语课堂教学法试验，该试验的课程和教材基础是《综合英语教程》。

报告提出了一套针对我国普通高等院校基础阶段综合英语课堂教学的实践模式。

这个模式的理论基础是以学生为中心，以促进语言交际能力、情感和认知等因素全面发展的现代外语教学理念，模式由简称为TELOS的五个核心要素构成。

本文全面介绍该项目的产生背景、模式要素和课堂实施方法。

一．序言“综合英语课程”是我国外语教学从传统的“精读课”发展出来的一门课，是全方位训练语言基本知识和基本技能的重要手段，“综合英语课堂教学”是实施这门课程的主要方法，我国几乎所有高等院校的英语专业都开设这门课2，因此对这门课的课堂教学开展实践性研究具有十分重要的意义。

本文所讨论的“综合英语课堂教学模式（TELOS）”是在我国九十年代师范英语教学改革3的基础上发展的一种教学体系，主要由下列五个要素构成，TELOS是这五个要素英语名称的简称。

1. T arget Language Input （目标语输入过程）2. E ngagement （学习投入过程）3. L earner’s Active Choices（学习者自主选择过程）4. Comprehensible O utput （可理解性输出过程）5. S elective Negative Input （选择性负面信息输入过程）我国师范英语教育专业的改革始于九五年，当时的目标是扭转我国师范英语教育专业长期滞后于国家外语教育发展的情况，改善我国基础教育教师“工作母机”的“产品质量”。

项目通过国内外调查和全国性的研讨会，摸清了我国师范英语教育专业的师资水平、教育理念、学生来源和学校条件。

从九六年开始项目组以编写《综合英语教程》为契机，以教材为基础，推广现代外语教学理念，促进师范英语专业基础英语教学的改革4。

大学生“网恋“现象分析一、问题的提岀随着网络技术的迅速发展，一个与现实社会相对的网络中的“虚拟社会”出现了。

现实社会的情感需求也在这个“虚拟社会"中得以折射，并显示出英独特的面貌和逻辑。

网络不仅改变着人们的日常交往方式，而且改变着人们的婚姻恋爱方式。

“网恋"，就是以因特网技术为基础而形成的一种特殊的情感生活方式和婚姻恋爱方式。

在齐种社会群体中，大学生的“网恋“现象尤为突出。

“网恋“不仅影响了大学生的日常生活和学习，而且影响着大学生的整个社会化进程。

大学生是社会的精英，是将来社会主义现代化建设的中坚力量，他们的成长关系着整个国家的未来和社会的发展，因此，我们必须科学地掌握和认识大学生“网恋“的现状、影响及其成因，在此基础上，加以适当的规范和引导。

这一点，正是本文的研究主题。

具体来说，本文将要集中研究以下两个问题：第一，描述大学生“网恋“的现状，即它现在发展到了什么程度？它有些什么基本特征？第二，揭示大学生“网恋“的形成机制，即大学生为什么会“网恋”？有哪些因素对大学生“网恋"构成了影响？构成了什么影响？又是怎样影响的？二、回顾相关资料(有相关资料就回顾，没有就没有必要了，这一步的工作主要跟前人的研究对比，在借鉴的基础上，突出自己研究的价值所在)“网恋"作为一种新兴的社会现象，有关的研究尚不多见。

从主题上看，以往的研究多侧重于“网恋"的心理感情层而，多采取心理学或社会心理学视角。

它们关注的问题主要有三个方而: 一是“网恋“的社会心理特征和社会心理过程：二是“网恋“过程中存在的认识误区；三是网络对人类婚姻恋爱方式所造成的影响，以及与传统的婚恋方式相比，“网恋“所存在的优势与不足。

在此基础上，有关研究探讨了通过“网恋”缔结婚姻的可能性和现实性，以及对“网恋” 进行引导和规范的建议和措施。

从方法上看，以往的研究几乎都只是对“网恋''进行左性描述, 在研究的规范性和科学性尚存在诸多不足。

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龙源期刊网 《中国少年儿童英语学习现状及趋势调研白皮书》发布会在京召开作者：来源：《留学》2016年第10期2016年5月12日，由中国青少年研究会，北京市教育学会学科英语教育研究分会团中央未来网，瑞思学科英语联合发布的《中国少年儿童英语学习现状及趋势调研白皮书》在京举行。

会上，教育部国家副总督学、原教育部基础教育司司长王文湛首先致辞，祝贺此次青少年英语学习现状调查会的圆满成功，并从宏观政策出发，强调了发展高质量的英语教学对于国计民生的重大意义。

共青团中央网络影视中心党组副书记、主任、未来网总裁何成锋发言表示未来网将大力支持对中国青少年英语素养的提升工作。

中国青少年研究中心常务副主任、中国青少年研究会副会长兼秘书长刘俊彦对此次调查的数据整理、分析进行了汇报，号召社会各界共同致力于此类研究。

中国质量认证中心创新研究部部长王晓涛则介绍了国际标准语言培训和通用认证标准。

随后，各界嘉宾代表也纷纷进行了发言。

何成锋总裁、刘俊彦会长、北京市教育学会学科英语教育研究分会理事长杨义春、以及瑞思学科英语CEO孙一丁先生为《中国少年儿童英语学习现状及趋势调研白皮书》发布仪式进行了揭幕。

中国青少年研究会副秘书长程旭辉先生详细介绍了《中国少年儿童英语学习现状及趋势调研白皮书》。

此次调研工作历经3个月时间，覆盖了全国100余所中小学，涉及8个省市，抽样采集全国1万余名学生的样本数据整理而成。

调查显示：目前有一半以上的少年儿童在3-5岁的时候开始学习英语，其中2/3比较注重英语的综合能力的应用。

其学习方式仍然以卷面答题为主，在应用能力方面还有待进一步的加强。

初中生比小学生参加英语课外辅导班的比例有所下降，学习目的对学生选择课外辅导有一定影响。

此外，在课堂上采用纯英语教学，少年儿童的综合应用能力会更强，而对英语的喜爱度越高，其英语综合应用能力也就越强。

中国卫生产业CHINA HEALTHINDUSTRY[基金项目]齐齐哈尔医学院教育科学研究项目(QYJY20190139);黑龙江省高等教育教学改革项目(SJGY20170307)。

[作者简介]王文豹(1990-),男,博士,讲师,研究方向为中药化学教学与科学研究。

习近平总书记在全国高等学校思想政治工作会议上强调,高校要坚持把立德树人作为中心环节,把思想政治工作贯穿教育教学全过程,实现全员育人、全过程育人、全方位育人,努力开创我国高等教育事业发展新局面[1-2]。

中药化学是一门结合传统中医药基本理论和临床DOI:10.16659/ki.1672-5654.2020.32.169BOPPPS 教学模式融入课程思政元素在中药化学课程教学中的探索与实践王文豹,郭丽娜,王晓丽,张金玲,董巍齐齐哈尔医学院药学院,黑龙江齐齐哈尔161006[摘要]党的十八大提出把立德树人作为教育的根本任务,明确指出了立德的重要性,因此,课程思政元素的融入与渗透成为新时代高校专业课程建设的根本任务。

BOPPPS 教学模式是一种注重学生全方位参与教学实践和及时获得反馈信息的教学设计模式,被我国各大高校广泛应用于各类课程的教学实践中。

中药化学既是中药学类专业的一门重要的专业课,也是一门重要的专业基础课。

在分析了中药化学课程特点的基础上,结合高校肩负着培养德、智、体、美、劳全面发展的社会主义事业建设者和接班人的重大使命,提出了在中药化学教学中采用BOPPPS 教学模式融入课程思政元素的方式。

在BOPPPS 教学模式的基础上,将中药化学课程与思想政治教育更好地结合,旨在更有效地发挥该专业课程的育人功能,培养树信念、重责任、强使命的中药学专业人才,弘扬中医药传统文化。

[关键词]BOPPPS ;教学模式;课程思政;中药化学[中图分类号]G642[文献标识码]A[文章编号]1672-5654(2020)11(b)-0169-03The Exploration and Practice of BOPPPS Teaching Mode into the Curricu⁃lum Ideological and Political Elements in the Teaching of Chinese Medicine ChemistryWANG Wen-bao,GUO Li-na,WANG Xiao-li,ZHANG Jin-ling,DONG WeiSchool of Pharmacy,Qiqihar Medical College,Qiqihar,Heilongjiang Province,161006China[Abstract]The 18th National Congress of the Communist Party of China put forward the fundamental task of establishing morality as the fundamental task of education,and clearly pointed out the importance of morality.Therefore,the integration and penetration of curriculum ideological and political elements has become the fundamental task of professional curriculum construction in colleges and universities in the new era.The BOPPPS teaching mode is a teaching design mode that focuses on students'full participation in teaching practice and timely feedback information.It is widely used in the teaching practice of various courses in major universities in our country.Traditional Chinese Medicine Chemistry is not only an important professional course,but also an important professional basic course.Based on the analysis of the characteristics of the Chi⁃nese medicine chemistry course,combined with the major mission of the colleges and universities to cultivate socialist builders and successors with comprehensive development of moral,intellectual,physical,aesthetic and labor,it is proposed to adopt BOPPPS teaching in the teaching of Chinese medicine chemistry.The way the model integrates the ideological and political elements of the curriculum on the basis of the BOPPPS teaching model,the Chinese medicine chemistry course is better integrated with ideological and political education,aiming to more effectively play the education function of this professional course,and cultivate Chinese medicine professionals who build beliefs,emphasize responsibility,and missions,promote the traditional culture of Chinese medicine.[Key words]BOPPPS;Teaching mode;Curriculum ideology;Chinese medicinal chemistry169HEALTH EDUCATION卫生教育用药经验,运用现代科学与先进技术,从化学的角度研究中药有效物质基础的学科[3-4],是中医药与现代科学结合的重要桥梁[5-6]。

龙源期刊网 《中国STEM教育白皮书》正式发布作者：来源：《中小学信息技术教育》2017年第07期2017年6月20日，“第一届中国STEM教育发展大会”在成都召开，来自全国各地的专家学者、教育部门领导、校长、老师及教育企事业代表千余人在“新战略、新课改、新高考背景下的STEM教育”主题下建言献策，共谋中国STEM教育发展的新方向、新模式，对中国STEM教育的发展环境、发展现状以及如何发展等问题做了全面的分析和深入的探讨。

由中国教育科学研究院和STEM研究中心联合起草的关于探索和推进中国STEM教育的指导手册——《中国STEM教育白皮书》在大会上正式发布，这标志着中国STEM教育开始走向更加全面、专业、成熟的发展道路。

中国教育科学研究院国际比较教育研究所所长、中国教育科学研究院STEM教育研究中心王素主任表示，《中国STEM教育白皮书》作为中国教育史上关于STEM教育的最全面、最专业、最详实的研究成果，详细阐述了中国发展STEM教育的时代和国际等背景需要，并在多年的理论研究和实践探索的基础上，深入分析了我国STEM教育的发展成就及问题与挑战。

同时针对我国的具体情况提出了“中国STEM教育2029创新行动计划”，明确了具体的行动方案，并全面探析了美国、英国、德国等发达国家的STEM教育发展现状和发展模式，对我国STEM教育的发展具有重要的指导和借鉴意义。

王素主任从中国STEM教育的背景、国际背景、现状和情况、科学教育政策等多个方面进行了具体解读，并对“中国STEM教育2029创新行动计划”进行了详细的介绍。

《中国STEM教育白皮书》显示：相对于美、英等发达国家来说，中国的STEM教育起步晚，发展基础比较薄弱，传统的教育理念和传授模式根深蒂固，面临着众多的问题和挑战，尽管如此，发展速度令人震惊。

中国的STEM教育不仅在理论研究上有所突破，还有了初步的实践成果。

国家已明确把STEM教育纳入国家战略发展政策，其重要程度日益彰显。

2017年成人高等学校高起点英语真题及答案Dsubect, feel free to discuss it. Otherwise. irv not to look like you are interested only in things for your own good An employer will more readily hire someone interested in bettering themselves AND the company as a whole.36.An employer usually expects an employee to be .A. hungry for promotionB. satisfied with the vacationC. pleased with the position D curious about the workplace37.Asking to work from hom may your future boss think that .A. you want to stay away from your bossB. you work beter at homeC. you're unwilling to meet others D you're too lazy to come into the office38. When can you offer the subject of pay?A. Before you ask about teamworkB. After you get the jobC At the end of your interview. D.At the beginning of your interview.39. What might be the best title of this text?A Questions Not to Ask in a Job InterviewB How to Dress for a Job InterviewC.Clever Answers to Interview Questions D Proper Time for a Job InterviewBMaria Mitchell(1818-1889,the first woman astronomer(天文学家)in the United States, was born in Nantucket. Massachusetts. Her parents valued education and insisted on giving her the same quality of education that boys receivedHer father. William Mitchell, was an astronomer and teacher himself. When he built his own school, Maria became a student and also a teaching assistant to him. At home. Marias fathertaught her to watch the stars and other natural objects in space using his personal telescope(望远镜).Later she went to work at the library of the Nantucket Atheneum. Over the next tweny years. she further developed her interest in reading as many books as she could.She spent her nights watching the sky closely with her father.On October 1, 1847,Maria discovered a comet(彗星)by merely using a two-inch telescope. Some years before, King Frederick VI of Denmark had set up prizes to each discover of a"telescopic comet". The prize was to be given to the"first discoverer"of each such comet because comets were often discovered by more than one person.There was once a question of who should be the winner. As the story goes, francesco de Vico had discovered the same comet two days later, but had reported it to the European vor. She won the prize in 1848 and became a big name the world over. The comet was named“ Miss mitchell's Comet.”40. What ean be learnt about Marias parents according to the text?A. They came from low-income families.B. They gave Maria equal chance for educationC. They were both astronomersD. They were both teachers.41. Whe played the most important role in Maria's great achievement?A. King FrederickⅥ B Francesco de VicoC. Her fatherD. Her mother42. What problem did Maria meet with in winning the prize?A She named the comet on her ownB. She did not use the required telescope.C. She did not report her discovery in timeD. She discovered the comet with her father43. When did Franeeseo de Vico discover the comet?A.In1818B.In1889C.In1848D.In1847CMany schools have their art programs removed in an effort to improve test scores and money. However, some researchers believe that this is not correct. Students can master some basic skills in art class that they cannot find in a normal classroom.Allow me to share why you have to take art class.First and most important,it stimulates creativity(激发创造力) Art schools encourage you to think outside the box and be creative enough to create something artistic.It can be used not only in art but in life,too.Besides,it helps you make the right choice. In art class, you are usually free to do what you want. In every art class, you are required to make decisions that can determine what your painting will turn out to be.In addition, students can learn the art of critical(批判性的) thinking as a skill of observation(观察). For example, art students find ways to imagine, That is a skill they need to beome better readers and problem settlers,What is more,it is noted that the company's bosses are actively looking for employees who can think creatively. Creative thinking is one of the most important skills that students can learn in art courses.Finally, students who are trained in art class have interesting mental habits. They low to work on a task for a long time and how to continue to work even if they are discouraged. They are better for creating a link between the classroom and the outside world. In addition,children who do art work are able to look back on their work and make iudgments about themselves.44.Why are art programs removed from many schools?A. To make students have their own hobbiesB. To improve students'test scores and save money.C To help students master some job skillsD To give students more free time45. What is the most important quality students develop in art class?A. DeterminationB.CarefulnessC.CreativityD.Honesty46. What can we learn from the text?A. Art students are easily employed.B. Art programs may bring a lot of money.C. Art class can help students in many ways.D Art teachers should pay more attention to tests.DYou know what a hotel is, of course. And perhaps, you also know what a condo is-aresidntial(居住的)building divided into seprate uniots that are owned by differentpeople.What you may not know is that in someU.S. cities, the two have come together into somethingcalled a “condo hotel”.Some condo hotels can now be found in beach and mountain towns and a few small cities,However, none is more famous than the great 105-year-old Plaza Hotel in New York,on Fifth Avenue across from Central Park. The Plaza closed for repair in 2005. When it reopened two years later,more than half of it had been changed into one of these modern condo hotels.Here's how it works: You buy what equals to an apartment(公寓). If it's at'The Plaza,it will cost you between $1.5million and $9 mllion. So you own a part of the building. But there's some inconvinience. You may stay there no more than 120 days a year. hereion. The rest of the time,the hotel's workers can book guests into your place, just as they would in the regular hotel's rooms. So if you're lucky and rich,you can now live in really special quarters up to almost one thid of the year. While others pay off your mortgage(房贷)the rest of the year.So far,a great monry of the nation's condo hotel units have been purchased not by rich people but richer companiesm, including foreign ones. They want a nice place for their bosses to stay when they are in town or working late at the office.47.A condo is a place where people .A. liveB. workC. eatD. study48.How long can you stay in your own condo hotel unit a most each year?A.120 daysB. One monthC. Half a yearD. Three months.49. What does purchased in the last parngraph probably mean?A. Closed.B. Bought.C. Damaged.D. Repaired.50. What do we know about a condo hotel?A.It is designed by rich companies.B. It is built for foreign travellers.C. It is usually sold at a low price.D.It is owned by different people.第Ⅱ卷(非选择题，共45分)五、补全对话:共5句;每句满分为3分,共15分。

英语课程标准（201 7年版）中华人民共和国教育部制目录第一部分前言 (3)一、课程性质 (3)二、课程基本理念 (3)三、课程设计思路 (4)第二部分课程目标 (5)一、总目标 (5)二、分级目标 (6)第三部分分级标准 (8)一、语言技能 (8)二、语言知识 (13)三、情感态度 (14)四、学习策略 (15)五、文化意识 (17)第四部分实施建议 (18)一、教学建议 (18)二、评价建议 (21)三、教材编写建议 (23)附录 (25)附录1 语音项目表 (25)附录2语法项目表 (26)附录3 词汇表 (27)第一部分前言当今世界正处在大发展和大调整的变革时期，呈现出世界多极化和经济全球化以及信息化的发展态势。

作为一个和平发展的大国，中国承担着重要的历史使命和国际责任与义务。

英语作为全球使用最广泛的语言之一.已经成为国际交往和科技、文化交流的重要工具。

学习和使用英语对吸取人类文明成果、借鉴外国先进科学技术、增进中国和世界的相互理解具有重要的作用。

在义务教育阶段开设英语课程能够为提高我国整体国民素养，培养具有创新能力和跨文化交际能力的人才，提高国家的国际竞争力和国民的国际交流能力奠定基础。

在义务教育阶段开设英语课程对青少年的未来发展具有重要意义。

学习英语不仅有利于他们更好地了解世界，学习先进的科学文化知识，传播中国文化，增进他们与各国青少年的相互沟通和理解，还能为他们提供更多的接受教育和职业发展的机会。

学习英语能帮助他们形成开放、包容的性格，发展跨文化交流的意识与能力，促进思维发展，形成正确的人生观、价值观和良好的人文素养。

学习英语能够为学生未来参与知识创新和科技创新储备能力，也能为他们未来更好地适应世界多极化、经济全球化以及信息化奠定基础。

一、课程性质义务教育阶段的英语课程具有工具性和人文性双重性质。

就工具性而言，英语课程承担着培养学生基本英语素养和发展学生思维能力的任务，即学生通过英语课程掌握基本的英语语言知识，发展基本的英语听、说、读、写技能，初步形成用英语与他人交流的能力，进一步促进思维能力的发展，为今后继续学习英语和用英语学习其他相关科学文化知识奠定基础。

英语流利说app产品分析报告目录英语流利说app产品分析报告 (1)一、市场分析 (3)1. 行业趋势 (3)2. 产品市场现状 (4)二、产品定位 (5)三、用户分析 (6)1. 用户画像 (6)2. 用户使用场景 (9)四、商业模式画布 (10)普通用户 (11)付费用户 (11)1. 高质量的AI技术； (12)2. 拥有庞大的中国人英语数据库； (12)3. 口语搜索引擎。

(12)五、内容分析 (13)1. 个性化定制 (14)（1）用户的英语层次 (14)（2）词汇的重要性 (15)（3）学习的趣味性 (15)2. 口语练习 (19)培养语感 (20)考试/考证 (20)生活口语 (21)技能类 (21)3. 模仿英语 (21)4. 学以致用 (23)六、核心功能分析 (25)1. 懂你英语 (25)七、总结与思考 (43)1. 产品特色 (43)2. 产品不足之处 (44)3. 建议与思考 (45)一、市场分析1. 行业趋势根据2017年10月9日，由知名第三方研究机构艾瑞咨询联合国内最大互联网学习平台沪江，对外发布的《2017年中国成人在线外语教育行业白皮书》可以得知：2017年中国在线教育行正处于初步成熟期过渡阶段。

2017年中国在线语言教育市场规模预计将达到375.6亿元，用户规模突破2600万，未来在线语言教育市场规模与用户规模将持续增长，但增长幅度会逐渐降低，预计在2019年其市场规模将达到523.5亿元。

艾瑞分析认为，在线语言教育市场规模增长主要有几个因素影响：1.课程易于标准化，可复制性强，利于降低成本；2.在线教育用户认可度不断提升，与外教直播互动学习可实时营造使用场景，提高语言使用率，吸引更多的用户；3.用户学习行为数字化进一步完善，人工智能等新兴技术不断与在线教育结合，个性化学习逐步实现；4.在线语言教育细分领域中差异化产品更加丰富，更多传统线下教育企业线上化转型加速。

TTLM I/O Installation, Calibration & Operator’s ManualRevision E, Oct. 2009TTLMTable of ContentsLimited Warranty (2)Features Overview (3)Specifications (4)Mounting the TTLM (5)Connecting Sensors to the TTLM (6)Supplying AC Power to the TTLM (8)Supplying DC Power to the TTLM (9)TTLM Cam Switch Wiring Connections (10)Wiring a Triggering Device Into the TTLM (11)The Analog Output Connector (12)Calibrating the TTLM (13)Setup the TTLM with Pre-calibrated Load Cells (16)Operating the TTLM (17)Definition of Terms (18)Table of Figures1 Mounting Hole Arrangement (5)2 Strip the Cable Panel (6)2a Cable through the Lug (6)2b Side View (6)2c Color Codes (6)3 Channel Connections (7)4a A.C. Power Connections (8)4b D.C. Power Connections (9)5 Probe Interface Connections (10)6 Probe Timing (11)7 Analog Output Connections (12)8 Calibration Controls.......................................................................................................................................13-17 AppendixA Sensor Placement & Installation (20)B Replacing a T400 Sensor (28)TTLMLimited WarrantyThis unit is warranted by the manufacturer, Toledo Transducers, Inc., to be free of defects in workmanship and materials for one year from date of manufacturer’sshipment. This warranty is limited to repairing or replacing products whichmanufacturer’s investigation shows were defective at the time of shipment by themanufacturer.All products subject to this warranty must be returned for examination, repair orreplacementF.O.B. to: Toledo Transducers, Inc.ValleyDriveSpring683443528OhioHolland,The express warranty set forth herein is in lieu of all other warranties, expressed or implied, including without limitation any warranties of merchant-ability orfitness for a particular purpose. All such warranties are hereby disclaimed andexcluded by the manufacturer.Repair or replacement of defective products as provided above is the sole andexclusive remedy provided thereunder. The manufacturer shall not be liable for any further loss, damages, or expenses, including incidental or consequential damages, directly or indirectly arising from the sale or use of this product.Any unauthorized repair voids this warranty.There are no warranties that extend beyond those expressly set forth herein.Features OverviewTTLM I/O Load Module.The new TTLM I/O Load Module has been designed with user friendliness in mind. The unit incorporates the use of Phoenix Connectors on the sensor inputs as well as the analog output for easier wire installation. The TTLM was designed to condition the output from most 350 Ohm bridge sensors such as Toledo Transducers, Inc. T400 Load Sensors or load cells. It provides an analog output in the range of +/-9 VDC for use by many standard A/D conversion products. Several useful functions such as auto-zeroing and peak hold circuits have been incorporated to make the TTLM a versatile signal conditioner.Note: The TTLM is a signal conditioner which can be used as an input to a PLC or a PC with the appropriate software to convert the TTLM’s analog signal into auseable digital tonnage reading. The software should also have a routine that allows for tonnage calibration in order to achieve accurate readings. If you have questions concerning the software or hardware needed to convert the analog signal to a tonnage reading contact:Toledo Transducers, Inc. 6834 Spring Valley Drive Holland, Ohio 43528 Phone: 419-867-4170• Signal conditioning module for strain gage sensors and load cells • Four independent channels for accommodating up to eight sensors • For use with full bridge sensors from 120 Ohms to 1,000 Ohms • Plug-in connectors are used for sensor inputs• High/low sensitivity span ranges selected with front panel switch • Automatic zero balance circuits assure accurate measurements • Power input/output are plug-in connectors • Built-in automatic peak load memory circuits• Peak measurements are made with an external trigger device • Built-in power supply for stable operation and noise rejection • Compact size to fit almost any location• Steel enclosure for maximum protection and noise rejectionSpecificationsTransducers Full Bridge, 120 OHMS to1000 OHMS.versionchannelavailable.FourOnetoMaximum of two 350 Ohm sensors, paralleledconnection, per channel.Dimensions 2.00” x 3.10” x 8.95”Balance Range +/- 1mV/V of offsetGain - Two Ranges Low gain = 100 to 1,100 adjustableHigh gain = 1000 to 11,000 adjustable Output Range +/-9 VDC @ 12 VDC excitationCircuit Accuracy Maximum inaccuracy of +/- 1% of full scaleCircuit Linearity Maximum non-linearity +/- 0.1% of full scaleAuto Zero Time Constant 10 SecondsFrequency Response Flat DC to 1 KHz.Peak Decay Less than 1% of full scale in 10 minutesCalibration Shunts 1 Meg OHM, 0.1%Input Power 90 to 240 VAC 50-60 Hz.DC option: 24 VDCFused at 0.25 Amp Type: 3AG SLO-BLOexcited at +12 VDC, .30 Amps maximum SensorExcitation InternallySensor Input Connections Four pin 5.08 mm centers (.2”) Phoenix connectorPeak Output Connections Six pin 5.08 mm centers (.2”) Phoenix connectorProximity Probe 12 VDC internally supplied to drive NPN or PNPprobes, 50mA max. Input also supports drycontacts.relayMounting the TTLMThe dimensions and the recommended mounting hole arrangement for the TTLM.Use #10 screws to securely mount the TTLM in an enclosure suited to the environment.Figure 1 4) Analog Output5) Mode Selection Switches6) Probe Input7) Voltage Input(See appendix A for sensor placement & installation) Sensor Connection Guidelines1). Strip the sensor cable as shown in Figure 2.Be sure not to nick any of the signal conductors or strip the shield completely away. At least ½ inch ofFigure 22). Insert the cable through the lug as shown in Figure 2a.Make sure the cable shield is aligned with the portion of the wire lug which will be crimped.3). Next, crimp the lug on to the cable shield, do not crimp too tight and risk smashing the wires . Thiscould cause them to short to ground. Figure 2b shows a side view of the completed operation after crimping.Figure 2b4). Attach the wire lug to a ground terminal on the front of the TTLM. Use a 6-32 x ¼’ screw for thegrounding lug connection. If you have a Toledo Transducers sensor, attach the signal wires to the channel connector following the color codes in Figure 2c.Note: If your sensor is not double shielded with both foil and a braid, electrical noise may affect your output readings.Figure 2cNote: Some brands of sensors use a different color code than the red/white/green/black colors. It is important to check the spec sheet of the sensor. The spec sheet will indicate the excitationand signal.The TTLM Load Module accepts the signals from Toledo Transducers T400 sensors as well as other strain gages. Figure 3 illustrates the sensor connections available on the TTLMT400 Sensor T400 SensorFigure 3 - TTLM Channel Connections (2 through 4 are optional).Tension ForceCompression ForceNote: If TTLM has DC option see next page.¾The TTLM can use an input range of 90-240 VAC.¾ Input power is connected by means of the front panel “A.C. IN” connector and fused with a 250mA slo-blo fuse.Figure 4a - Front Panel A.C. Power Connections.A.C. Power Connection FuseSupplying DC power to the TTLM (DC option only)¾The DC TTLM uses an input of 24VDC.¾ Input power is connected by means of the front panel “D.C. IN” connector and fused with a 250mA slo-blo fuse.Figure 4b - Front Panel D.C. Power Connections.TTLM Cam Switch Wiring Connections¾ The probe supply voltage is provided by the TTLM via the +12VDC output connection on the PROBE interface connector. (This is different from first generation module which required an external supply.) ¾ The diagram below illustrates the wiring for both the PNP and NPN probe types.¾ Either a normally open or normally closed probe may be used.¾ The LED directly above the probe input connector (PROBE SENSE) indicates the actual state of the probe.¾ This LED should turn on at 140° and turn off at 240°. If it is working just the opposite, simply flip the N.C. -N.O. Dip Switch to invert the logic of the probe signal in the TTLM.TTLM Probe Interface ConnectionsWiring a Triggering Device Into the TTLMThe TTLM remains in the auto-zeroing mode of operation until an external probe is applied.The auto zero feature is important for accurate readings. Over time the press frame will slightly change in its structure. This may be due to temperature or press frame tension. The TTLM will compensate for the slight change. It will readjust the zero base line. This zero base line is the no-load value of the press. With a consistent zero value, the tonnage output readings should remain accurate.When the probe turns on, the TTLM opens the window to read a load signal. In peak mode the load level rises to the highest value.When the probe turns off, the peak level is reset and the auto-zeroing function is resumed. (Notice the dotted line below).The timing of the probe should be such that it turns on just before the machine begins generating a load (140°) and remains on until the load is removed (240°) and the TTLM outputs have been read.Figure 6The recommended timing of the probe vs. the loading on the machine.Probe Probe ClosedProbe OpenLoadThe Analog Output ConnectorThe analog outputs are provided on a 6 pin Phoenix connector for easy access. The voltage level at these outputs ranges from 0 V at no load, up to +/-9 V at maximum.This output voltage level is directly related to the gain setting of each channel.Figure 7The analog output connections provided for interfacing to other peripherals.Analog Voltage Output Connector Pin 1 = Ch 1 out Pin 2 = Common Pin 3 = Ch 2 out Pin 4 = Ch 3 out Pin 5 = Common Pin 6 = Ch 4 outCalibrating the TTLM Load Module*If you have a Maximizer Load Monitor (Allen Bradley based system), please refer to thatmanual for proper calibration of the TTLM.Figure 8 highlights the switches and controls used to calibrate the TTLM Load Module.Step 1) With the sensors placed in the best possible location, (see appendix A), torque all of the sensors down to 150 in/lbs on the sensor bolts. Do not put the sensor enclosure covers on yet. You will need to test each sensor location.Step 2) Toggle the mode select switches to CAL, ZERO, TRACK:Step 3) On your output plug, connect your volt meter to channel one and common. Now adjust the zero pot so your voltage is adjusted to 0.00 VDC. After completing channel one, do the same for the rest of the channels.Step 4) Again connect your volt meter to the output plug on channel one and common. Have someone put pressure on channel one’s sensor with their thumb. It should slightly change as pressure isapplied. This will verify your sensor location. Normally we locate our sensors:Ch1 = Left RearCh2 = Right RearCh3 = Left FrontCh4 = Right FrontStep 5) Coat the sensors with silicone if you are calibrating a forging press. This will help prevent waterand carbon contamination that might damage the sensors over time. Put covers on all sensor enclosures.Step 6) Without load cells in the press, cycle the press and stop it at bottom dead center. Measurebetween the ram and the bed to determine the size of the spacers you will need. Be careful to allow around a 1/8 in. gap between the ram and the load cells.* Damage to the press could occur if the ram locks up the load cells due to an improper measurement.Step 7) Cycle the press so the ram goes to the top. Insert the load cells and spacers. Keep the load cellssymmetrical with each other in the bed of the press. Record their placement on a calibration sheet.Step 8) Cycle the press over and over. Each time lower the adjustment until you reach the tonnage ratingof the press.* The load will increase approximately 1 ton for every 1/1000 inch as you begin to lower the adjustment.Step 9) Make sure to evenly distribute the load on all load cells using shims if needed. You are nowready to adjust the gain of the TTLM.Note: If your PLC does not have the ability to digitally adjust tonnage values proceed to Step 13.Step 10) For PLC readout devices that have tonnage adjustment capabilities, set the mode select switchesto CAL, GAIN SET, TRACK: Step 11) Adjust each channel’s gain pot to 2.5 VDC. (Some systems may use a slightly higher voltagelevel)Step 12) Toggle the switches to RUN, ZERO, PEAK and adjust the PLC’s tonnage readings to equal thoseof the load cells. Proceed to Step 15.Step 13) For PLC’s that do not have the ability to digitally adjust tonnage, you must manually adjust thegain of the TTLM.Note: Make sure your analog card input has a rating of 0 to 5VDC for each channel’s input.Set the mode switches to select RUN, ZERO, PEAK:N.C.N.C.N.C.Step 14) Adjust the gain pot after each press cycle until the readings on your PLC display match theStep 15) After the TTLM is calibrated to match the load cells at press capacity, record on your Cal sheetthe tonnage value of each TTLM channel and of each load cell.Now check press linearity at lower tonnage by collecting tonnage data at 75%, 50% and 25% of press capacity. Do this by increasing the slide adjust or by removing shim material from the load cells. Do not adjust PLC tonnage or TTLM gain in order to match the load cell tonnage at these points, this is for documentation purposes only. Record all tonnage values on your Cal sheet.Step 16) Record the Calibration Numbers.A) If you programmed the tonnage values with your PLC obtain the calibration numbers(sometimes referred to as points) from your PLC and record them on your Cal sheet. You are now finished.B)If you manually adjusted the gain of the TTLM to obtain correct tonnage readings, toggle themode switch to select CAL, ZERO, TRACK and rebalance each sensor to 0VDC (refer to Steps 2 and 3).Set the mode switch to CAL, GAIN SET, TRACK and measure the voltage of each channel. These voltages will be your calibration numbers that need to be recorded on your Cal sheet.C)Important; Make sure the mode switch is returned to RUN, ZERO, PEAK beforeputting the press back in service.* To see a track output on your scope, you must put the unit into TRACK mode. When in TRACK mode, most PLC units will not record correct tonnage values .N.C.N.C.N.C.Setup the TTLM with Pre-calibrated Load CellsStep 1) Locate the following information from the load cell calibration data sheet : Cal. No. mV/V ________________________Shunt Resistance ______________________Output at Rated Capacity _______________Step 2) Calculate the Adjusted (Cal. No. mV/V) for the standard TTLM with a 1Meg shunt resistor bycompleting the following formula. Do this step only if the Shunt Resistor on your load cellcalibration data sheet is different from the shunt resistor inside the TTLM, otherwise skip to step number 4. (The TTLM shunt resistor value is printed on the identification label and is part of the model number, i.e. TTLM-4-1M. The 1M means 1,000,000 ohms)(.000001) x (Shunt Resistance ) x (Cal No. mV/V ) = Adjusted (Cal. No. mV/V)Step 3) Determine the Full Scale Output for the TTLM. Suggested voltage is as follows: 5VDC FullScale Output when the pressing machine produces 100% of Rated Capacity on the load cell. Other less common Full Scale Output voltage is 2.5 VDC when the pressing machine produces 100% of Rated Capacity on the load cell.Step 4) Calculate the Cal. No. Voltage setting . This number represents the gain factor of the internalTTLM amplifiers.Full Scale Output x Adjusted (Cal. No. mV/V) / Output at Rated Capacity = Cal. No. VoltageExample #1 for a 350 ohm bridge load cell: 5VDC x 0.08848 mV/V / 1.05623 mV/V = 0.4188 VDC Example #2 for a 700 ohm bridge load cell: 5VDC x 0.17696 mV/V / 1.05623 mV/V = 0.8377 VDCStep 5)Adjust each balance pot to so that each channel output will read 0.000 VDC.Step 6) Switch the TTLM to CAL, GAIN SET, TRACK;Adjust the gain pot until the channel Output Voltage is equal to the Cal. No. Voltage from Step 4. Repeat steps 5 and 6 at least two times.Step 7)Switch the TTLM back to RUN, ZERO, PEAK;N.C.N.C.N.C.Operating the TTLMOnce the TTLM has been calibrated it is ready for continuous use. To ready the TTLM for load conversions, follow these four steps: ( Figure 8)Step 1) Make sure that the RUN/CAL switch is set to RUN.Step 2) Make sure that the GAIN SET/ZERO switch is set to ZERO.Step 3) Insure that the external probe signal is turned on before the load is generated and turned off after the operation is complete. If the logic of the probe is reversed, use the N.C./N.O. switch to invert the probe signal logic or adjust the probe accordingly.Step 4) Set the TRACK/PEAK switch to the desired mode. While in TRACK mode each channel's output will follow the loading on the sensor as the load on the machine increases and decreases. InPEAK mode, the output will increase to the highest load level and remain at that voltage until the probe is released.Definition of TermsAlarm A reading that is out of the high or low limit range causing the relay to de-energize.Once alarmed, the relay opens to stop the press/machine.Balance The balance adjustment electronically zeros the sensors under a no load condition. CalibrationNumberA gain reference value that is adjusted to obtain accurate tonnage readings.Calibration The process in which the TTLM unit is adjusted to read the same tonnage as the reference load cells.Triggering Device (Probe) A switching input to the unit allowing tonnage to be read at a certain position in the stroke. It is usually obtained from a rotary cam switch, programmable limit switch or a proximity switch. (Only 24 VDC devices.)Compression The force measured by the sensor or load cell by compression. The sensor location to measure compression is usually found in the rear of a C-Frame press or on a Pitmanarm.Gain / Span Gain, also called Span, is the amount of amplification applied to the sensor output.The gain is adjusted during calibration.Reverse Load The “snap through” or damaging negative forces occurring in the machine. Typically, the snap through rating is 10% of the capacity of the press.Shut Height The distance from the top of the bed of the press to the bottom of the ram when on BDC.Track Mode When using the track mode, the output will cycle between 0 and 9VDC during the press stroke. The value goes back to 0V when there is no load.Peak Mode When using the Peak Mode the output will hold the highest force seen during the time the probe switch is on.Tension The force measured by the sensor when the press frame stretchesAppendix A SENSORS PLACEMENT & INSTALLATIONINSTALLATION FIXTURE KIT No. 1977-749 DRILL AND TAP METHOD FOR MOUNTING SENSORSINSTALLATION FIXTURE KIT No. 1977-749 WELD PAD METHOD FOR MOUNTING SENSORSAppendix B Replacing a T400 SensorReplacing a T400 SensorTo replace a T400 Sensor locate the correct channel for that sensor. In most cases they are installed as: Left Rear – Channel 1Right Rear – Channel 2Left Front – Channel 3Right Front – Channel 4Step 1) After pulling the new sensor through, make sure it is tightened down to 150 in/lbs or 12.5ft/lbs. If you don’t do this, your new tonnage readings may end up being lower.Step 2) Refer to steps 1 through 3 of Connecting Sensors to the TTLM on page 6 for stripping and crimping the cable.Step 3) Make sure your cable is terminated correctly at the TTLM side. The wire colors should be the same as the replaced sensor.Step 4) Toggle the mode select switches to CAL, ZERO, TRACK:N.C.Step 5) Locate the analog output pins from figure 8 on page 13. These will be from 0-10vdc. Locate the channel which the sensor was replaced. Now locate the balance pot for that channel. Adjust thebalance pot for that channel until your voltmeter reads 0.00vdc. Do not adjust the gain pot or your readings will not be accurate. (Your unit will go out of calibration if the gain is adjusted.)Step 6) Toggle the switches to RUN, ZERO, PEAK and wait for three minutes before cycling the press.N.C.。