新华龙单片机学习入门教程基于本人学习单片机的痛苦经历，特编写本教程，以此献给广大的单片机初学者，希望您能从中受益。 单片机老鸟寄语：本教程乃最通俗易懂之单片机教材也，如果您还是看不懂，请千万不要涉足此行，以免误入歧途，耽误您的前程*_* 拿到这本教程您首先就会想，什么是 IAP 教学法?是不是一种什么全新的教学方法?当然不是，我可没有那么大的本事，其实这只是我杜撰的一个新名词，意思就是In Applications Program(在应用中编程),当然这只是针对单片机教学，说法是否正确，还得您说了算。 至于为什么要提这种说法，那我倒想说几句。大家都知道，学习电子技术是一件非常无聊和枯燥的事情，为什么会有这种想法，就是因为我们传统的教学方法只重理论而忽略了实践，要一个人记住那些空洞而有无聊的理论知识实在不是一件容易的事，好在我们总算熬过来了，不管如何，也多多少少的学习了一些电子基础知识。 接下来我们应该进一步掌握些什么知识呢，凡涉足此行的朋友都知道，那就是单片机。不过这可不是一件容易的事，倒不是因为单片机很难学，而实在是我们身边很难找到一本专为单片机入门者而编写的教材。翻一下传统的单片机教材，都好象是为已经懂单片机的人而写的，一般总是以单片机的结构为主线，先讲硬件原理，然后是指令，接着讲软件编程，再是系统扩展和外围器件，最后举一些实例(随便说一点：很多书中的实例都是有错误的)，很少涉及单片机的基础知识，如果按照此种学习方法，想进行产品开发，就必须先把所有的知识全部掌握了才可以进行实际应用。孰不知，单片机不象模拟电路和数字电路那样，只要搞懂了电路原理，再按照产品要求设计好相应的电路就可以了。它是一种以简单的硬件结构，复杂而有灵活的软件系统来完成设计的通用性产品，不同的设计者只会使用其不同的功能，几乎没有人会把它的全部指令都使用起来，所以学习使用单片机只能靠循序渐进的积累，而不可能先把它全部掌握了再去做产品开发(当然天才就例外了*_*)。 基于以上原因，本人想尝试一种全新的单片机教学方法，打破传统的循序渐进式的教学方法，以单片机的应用为蓝本，结合基本的工业控制系统和实践工作中的具体应用，不分先后顺序，将各条指令贯串于一个又一个的实验中，通过所见即所得的实验来讲解各种指令的编程方法，顺便讲解相关的基本概念，使您尽快地熟悉单片机应用的基本步骤，掌握软件编程的基本方法。 如果您学完了就能成为单片机的入门者，完全可以进行一般产品的开发;下册部分是单片机应用的提高部分，主要学习单片机的系统扩展(比如：ROM 和RAM 存储器的扩展，并行口的扩展，串行口的扩展，A/D 和D/A 与单片机的接口)以及相关开发工具和软件的使用(包括KELL C51 的应用与调试技巧，硬件仿真器的使用)等等，如果您学完了下册部分，那就得恭喜您成为了单片机开发的高手了，不过单片机的技术是在不断的发展和提高的，您也不要太骄傲哦! 为了尽量把最新的单片机知识和应用成果收录进我们的教程，希望您能不吝赐教，共同来努力把我们的教程不断的改进和完善。还是那句题外话，技术是靠不断的积累和交流才会进步的，固封自守只会更加落后。 由于时间和精力的限制，我还是希望在您学习本教程之前，自己先熟悉一点相关的电子技术知识，特别是数字电路基础，这对您学习中碰到的相关概念会有很大的帮助。
蒋静仪阅读教程2 课后习题答案（含quotations） Unit One Human Relationship 1. Interpretation of the quotations ①No man can be separated from the society and disconnected with other people as an island is isolated from the mankind. The inherent(内在的) oneness of mankind is just like a whole mass land. ②. when you deal with issues about yourself, try to be calm, reasonable and intelligent; but when you deal with issues about other people, you need to be affectionate, sincere and sympathetic. ③Here is an easy-to-follow, buy established and uncontroversial model for getting along with other people successfully. You just face and accept any serious misfortune or failure peacefully, as if it were something of litter significance or value; but never treat some ordinary, commonplace things as if they were extremely serious. Reference answers to the exercises Reading One: Check your comprehension 1-5 ADCCB Check your vocabulary 1.Fisher and Ury’s theory is based on the belief that the “win or lose”model does not work when two sides try to reach an agreement. https://www.doczj.com/doc/7018803015.html,e positive statements surrounding ideas that are negative. 3.You can often successfully resolve differences if you try this collaborative approach. Reading Two Check your vocabulary Resisted; frustration; fluttered; jerked; restless; haltingly; gratefully; thoughtless Reading Three Check your comprehension 1-7 FTFFTFT Check your vocabulary Administrative; meekly; hysterical; requisition; deposit; severe Confronted; spluttered; irate; bogus; purchase Reading four Check your comprehension 1-6 FTTTFT Check your comprehension 1.How often does this seriously affect people’s communication and make them fail in building
英语泛读教程（第2册）参考答案 Unit One Comprehension Points 1.Every year at the same time the stars were in the same place in the sky. 2.They are the planets. 3.He thought that … (Page 2, parag. 12) 4.The idea was that the stars and the sun did not turn around the earth. Instead, it was the earth that was turning. The sun and the stars were not really moving. 5.Because they would upset the whole science of astronomy and cause cruel persecution by the Church. 6.Content/details. https://www.doczj.com/doc/7018803015.html,mon. 8.Because radio telescopes find out new stars by picking up radio waves from them. 9.It means the group of stars that our earth is a member of. 10.The implication is that probably by then the earth has already been melted. 11.Every three days it gets very dim. It stays dim for a few hours, then it gets bright again. 12.Because a comet isn’t solid. It is thin like a cloud. Its tail is nothing but glowing gas. And its head is made of small pieces that could not hurt the earth. Exercises I. True or false 1. F 2. F 3. T 4. F 5. T 6. F 7. T 8. T 9. T 10. F II. 1.略。 2.Four stages. Childhood, manhood, old age, and the last stage. 3.The very hottest ones are blue. Those not quite so hot are white, and those less hot than the white ones are yellow and red. 4.略。 5.They help sailors to find their way and they help us to tell time. Unit Two Comprehension Points 1.It means to function properly. 2.电气史上最伟大的人物之一迈克尔·法拉第写了一篇报告，介绍了一种叫做gutta percha 的类似橡胶的物质，这种物质是从生在在马来西亚的一种树上提取出来的。 3.It means to bring out of the water on to the land. 4.To lay a cable under the Atlantic. 5.To become weaker. 6.第一个it指的是the telegraph failed，第二个it指的是it ever worked，第三个it指的是 the cable. 7.Because a big ship can’t carry the end of the cable on to the shore, it will get stranded.
Unit1 Ways of Learning Vocabulary I 1. 1)insert 2)on occasion 3)investigate 4)In retrospect 5)initial 6)phenomena 7)attached 8)make up for 9)is awaiting 10)not; in the least 11)promote 12)emerged 2. 1) a striking contrast between the standards of living in the north of the country and the south. 2)is said to be superior to synthetic fiber. 3)as a financial center has evolved slowly. 4)is not relevant to whether he is a good lawyer. 5)by a little-known sixteen-century Italian poet have found their way into some English magazines. 3. 1)be picked up; can’t accomplish; am exaggerating 2)somewhat; the performance; have neglected; they apply to 3)assist; On the other hand; are valid; a superior II 1. 1)continual 2)continuous 3)continual 4)continuous 2. 1)principal 2)principal 3)principle 4)principles 5)principal III 1.themselves 2.himself/herself 3.herself/by herself/on her own 4.itself 5.ourselves 6.yourself/by yourself/on your own Comprehensive Exercises I.cloze 1.
Keys to Reading Course 2 Unit 1 Reading Section A Word Pretest 1.B 2.A 3.B 4.A 5.B 6.C 7.B 8.C Reading Comprehension 1.B 2.A 3.B 4.B 5.C 6.C Vocabulary Building Word Search 1. assignment 2. irony 3. reverse 4. accomplish 5. assemble 6. squeeze 7. sensual 8. fragment 9. narcotic 10. adolescence Use of English 1.Bob agreed to take on the leadership of the expedition. 2.The world was taken in by his fantastic story of having got to the Pole alone. 3.He took up his story after a pause for questions and refreshments. 4.That takes me back to the time I climbed to the top of Mount Fuji. 5.The members of the party took it in turns to steer the boat. 6.They took it for granted that someone would pick up their signals and come to their aid. Stems 1.proclaim: to announce officially and publicly; to declare 2.percentage: a proportion or share in relation to a whole; a part 3.confirm: to support or establish the certainty or validity of; to verify 4.affirm: to declare positively or firmly; to maintain to be true 5.centigram: a metric unit of mass equal to one hundredth of a gram 6.exclaim: to express or utter(something) suddenly or vehemently Synonyms 1. adaptability 2. purpose 3.strained 4.hold 5.defeat Cloze important second France student bilingual monolingual serious means use difficult Section B 1.F 2.T 3.T 4.C 5.A 6.B 7.B 8.B 9.B 10.T 11.T 12.F 13.F 14.T 15.T Section C 1.F 2.T 3.T 4.F 5.T 6.F 7.F 8.F 9.F 10.F Unit 2 Music Section A Word Pretest 1. B 2. C 3. B 4. C 5. B 6. B Reading comprehension 1. T 2. F 3. T 4. T 5. T 6. T 7. T 8. F V ocabulary Building Word search 1. folk 2. capacity 3. sensuous 4. qualified 5. abuse 6. stuff 7. mood 8. clarity 9. strive Semantic variations 1. B 2. B 3. B 4. B 5. A 6.B Stems
阅读教程2 Unit 1 Part I P7 I Reading for Information 1-6 A C D B C A P8 II Translation 1.有一百份卷子要批，而且全是男孩们用潦草的字迹写的，这事它已经拖了好几个星期了。这些日子，他一直觉得头上仿佛悬着把剑。 2. 我私下里已经花了一大笔钱来学音乐。 3.他的脸上挂满了汗珠。 4.没有哪个宣布判决的法官会比吃上的谢卡尔更痛苦、更无助。 5.说出事实和接受事实同样需要勇气。 P8 III Summary 1.sun, straight in the face, blinking, dazed. 2.morning , night, tempering truth, shock 3.truth, trials, wife, headmaster 4.apple pie, culinary masterpiece, good, swallow 5.fine, mean, selfish 6.singing, stupefied 7.frogs, buffalo, window shutters 8.strength, give, receive Part II P14 Answer the following questions.
1.Hell is not so terrible as most people think because it can be transformed into Heaven through hard work, courage, faith and love. The real hell is in one’s heart. 2.Heaven is a land of beauty and peace, and it is the result o our hard work. 3.all those hardworking people with courage and determination can rest in Heaven after they die, because although they cannot all reach Heaven in the first place, they can build hell into Heaven. 4.Those who are afraid of Hell and do not have courage to fight difficulties and disasters will end up in Hell. 5.This parable tells us that our destiny is controlled by ourselves. Part III P.16 True or False Passage 1 1-5 T F T F F Passage 2 6-10 T F T T F Passage 3 11-15 C B B B D Passage 4 16-20 C D B D C Unit 2
A :c B 1-5 baccd 6-8 cdd D.1-5 daaba 6-10 dadca Fast Reading:1 dbcca 2 cbbcd 3 dcdcd Home Reading:abcccbac Unit 2 A:c B 1-5 cdada 6-10 bdacb D 1-5 dcbad 6-10 cbbad 11-15 cabdc Fast Reading:1 bbcad 2 bbbdd 3 cddda Home Reading: abadcadbcd Unit 3 A :c B 1-5 dccad 6-10 ddcaa D 1-5 badcd 6-12 bbcdacb Fast Reading:1 dbacc 2 abdcbd 3 dabc Home Reading:abdccccbab Unit 4 A :c B bdcaab D 1-5 dbacb 6-12 ccdcdcb Fast Reading:1 cdabd 2 cdcdd 3 dccbb Home Reading:bcddcdccdd Unit 5 A: c B 1-5 cacbd 6-10 bdabc D 1-5 abacd 6-10 ababa Fast Reading:1 ddbdb 2 dbddc 3 cdbcd Home Reading:cbdcbaacbd Uint 6 A:a B 1-5 bbbad 6-10 bdddc D 1-5 ccbaa 6-12 dabada Fast Reading:1 cabdd 2 addaa 3 bccdb Home Reading:bcacbbbb Unit 7 A:b B 1-5 cadbd 6-11 abcbad D 1-5 badca 6-14 bcbbadcab Fast Reading:1 cabdb 2 dbbdd 3 dccbd Home Reading:dcdbaccadb Unit 8 A:b B 1-5 badda 6-8 bac D:dacdcabbdab Fast Reading:1 cdbbd 2 dcacb 3 adcab Home Reading:accbdbacdb Unit 9 A:c B 1-5 bdcac 6-8 bcd D:aaabccdacbb Fast Reading:1 bcdda 2 adccd 3 dcbdc Home Reading:bcbadcab Unit 10 A:a B 1-5 acdcb 6-10 dadcc D:aaadbbcdabb Fast Reading: 1 ddccc 2 bbbca 3 cdacc Home Reading:bddcddcba Unit 11 A:c B 1-5 bdbba 6-7 bc D:aabbadab Fast Reading:1 bcbcb 2 ccbdd 3 abccd Home Reading:cdddddbcba
汪晓寒 location 场所位置 dumb 愚蠢的（foolish）,哑的（toneless） assure 向某人保证（promise）,使确信（guarantee） glorious 极好的（wonderful），辉煌的（splendid），光荣的 （completely） exhaust 筋疲力尽，用完 community 社区 committee 交流 fade 渐渐消失，褪色 comtast 持续的，不变的 humiliate 羞辱，使丢脸 simultaneous 同事的 interference 干涉，干扰 keep （sb）in suspense 使产生悬念 talented /gift/ genius 天赋 typical 典型的 consist of / be made up of 由……组成 reversal 颠倒 critical 至关重要的 principal 主要的 initial 最初的 investigate 调查 elementary 基本的 vigorous 用力地，精力充沛的 colleague 同事 creative 独创的 creativity 创造力 originality 独创性 independence 独立 enormous 巨大的，极大的 breakthrough 突破 (一到五单元单词) 1)背离传统需要极大的勇气。(departure，enormous)' It takes an enormous amount of courage to make a departure from the tradition. 3) 很多教育家认为从小培养孩子的创新精神是很可取的。(creative，desirable) Many educators think it desirable to foster the creative spirit in the child at an early age. 5)如果这些数据在统计上是站得住脚的，那它将会帮助我们认识正在调查的问题。 (throw lighton, investigate, valid) If the data is statistically valid, it will throw light on the problem we are investigating.
《全新版大学英语阅读教程》 (通用本课后练习答案) 第二册 UNIT ONE The Pleasure of Learning Key to the Exercises I. 1. C 2. A 3. C 4. B 5. B II. 1. F 2. T 3. T 4. T. 5. F. 6. T III. 1.对于太多的人来说,学习似乎是自己的意愿屈服于外界的指引,是一种奴役. 2.然而,只要幸运,有决心,指导得法,人的精神不仅经得起贫穷而且经得起富裕的考验. 3.对一个人来说,形成完整和协调的人格与保持自身的卫生,健康以及经济上的自立是同样必要的,那些从来没有认识到这一点的人已经吃尽苦头. IV. 1. First of all , the writer points out that there is a mistake about learning. Some young people dislike learning simply because they are educated in the wrong way. Learning is a natural pleasure that should be enjoyed. Then he develops this idea by examples to illustrate the different aspects: learning from books, by travel and trough practice. Learning can expand one’s knowledge over a period of time. 2. The chief danger of learning is laziness, sloth, routine, stupidity. It sneaks into people’s mind like wind through the shutters, causing people to slowly give up learning. We should realize that learning is a life-long endeavor, and only by continuous learning can one gain a meaningful and rewarding life. Key to the reading—skill Exercises 1. Students have improved SAT scores. 2. Teenagers planned patrols 3. TV programs are less thorough than newspapers. 4. Welcome to Our City is about the South and its people 5. Some films show little children fascinated at the world. 6. One can communicate with the writer as one reads a book. with Santa Claus Key to the Exercises I . 1. A 2. D 3. C 4. A 5. C 6. B II. . 1. 朱莉让我们如此为难,我的确感到生气.难道圣诞老人不存在的事实不是从同学那里得知的吗 2.我给她讲述了事情的经过,尽量使它听起来滑稽有趣,希望她不要注意到我和杰里在处理我开始认为的"圣诞老人问题"上是如此拙劣. 3.我可以看出,他正努力在想一种办法,用来解释我们的行为,使其听起来不太像事实那样具有欺骗性,那样错误和愚蠢. 4.事情就这样结束了.对圣诞老人不存在的事实悲伤了片刻只后,生活又恢复了正常. III. 1. Santa Claus is an imaginary old man with a long white beard and a red coat.
英语泛读教程2-王守仁-答案
Keys to Reading Course 2 Unit 1 Reading Section A Word Pretest 1.B 2.A 3.B 4.A 5.B 6.C 7.B 8.C Reading Comprehension 1.B 2.A 3.B 4.B 5.C 6.C Vocabulary Building Word Search 1. assignment 2. irony 3. reverse 4. accomplish 5. assemble 6. squeeze 7. sensual 8. fragment 9. narcotic 10. adolescence Use of English 1Bob agreed to take on the leadership of the expedition. 2The world was taken in by his fantastic story of having got to the Pole alone. 3He took up his story after a pause for questions and refreshments.
4That takes me back to the time I climbed to the top of Mount Fuji. 5The members of the party took it in turns to steer the boat. 6They took it for granted that someone would pick up their signals and come to their aid. Stems 7proclaim: to announce officially and publicly; to declare 8percentage: a proportion or share in relation to a whole; a part 9confirm: to support or establish the certainty or validity of; to verify 10affirm: to declare positively or firmly; to maintain to be true 11centigram: a metric unit of mass equal to one hundredth of a gram 12exclaim: to express or utter(something) suddenly or vehemently Synonyms
最全的全新版大学英语第二版综合教程2答案 课后练习答案 Unit1 Ways of Learning Part II Reading Task Comprehension Content Question Pair Work 1. They were studying arts education in Chinese kindergartens and elementary schools in Nanjing. 2. Their 18-month-old son Benjamin was fond of trying to place the key into the slot of the key box during their stay at the Jinling Hotel. 3. They would come over to watch Benjamin and then try to teach him how to do it properly. 4. Because he realized that this anecdote was directly relevant to their assigned tasks in China: to investigate early childhood education and to throw light on Chinese attitudes toward creativity. 5. Most of them displayed the same attitude as the staff at the Jinling Hotel. 6. He emphasized that the most important thing is to teach the child that on can solve a problem effectively by
Unit 1 Text：A.c B. 1. b 2.a 3. c 4. c 5. d 6. c 7. d 8. d C.1.d 2.a 3.a 4.b 5.a 6.d 7.a 8.b 9.c 10.a Fast Reading： 1.d 2.b 3.c 4.c 5.a 6.c 7.b 8.b 9.c 10.d 11.d 12 c 13.d 14.c 15.d Home Reading： 1.a 2.b 3.c 4.c 5.c 6.b 7.a 8.c Unit 2 Text：A.d B. 1.b 2.d 3.d 4.b 5.d 6.d 7.b 8.d 9.a 10.d C. 1.a 2.b 3.a 4.d 5.d 6.c 7.a 8.a 9.c 10.c Reading Skills
Fast Reading： 1.b 2.b 3.c 4.a 5.d 6.b 7.b 8.b 9.d 10.d 11.c 12.d 13.d 14.d 15.a Home Reading： 1.a 2.b 3.a 4.d 5.c 6.a 7.d 8.b 9.c 10.d Ｕnit3 Text: A. c B. 1.b 2.c 3.c 4.a 5.d 6.d 7.d 8.c 9.a 10.a C. 1.b 2.a 3.d 4.c 5.d 6.b 7.b 8.c 9.d 10.a 11.c 12.b Fast Reading: 1.d 2.b 3.a 4.c 5.c 6.a 7.b 8.d 9.c 10.b 11.b 12.d 13.a 14.b 15.c Home Reading: 1.c 2.a 3.d 4.c 5.c 6.c 7. d 8. d 9. a 10. d
《单片机原理及应用程序》（第三版）习题参考答案 第一章 1. 为什么计算机要采用二进制数？学习十六进制数的目的是什么？ 在计算机中，由于所采用的电子逻辑器件仅能存储和识别两种状态的特点，计算机部一切信息存储、处理和传送均采用二进制数的形式。可以说，二进制数是计算机硬件能直接识别并进行处理的惟一形式。十六进制数可以简化表示二进制数。 2． (1) 01111001 79H (2) 0.11 0.CH (3) 01111001.11 79.CH (4) 11101010.101 0EA.AH (5)01100001 61H (6) 00110001 31H 3. (1) 0B3H (2)80H (3) 17.AH (4) 0C.CH 4. (1)01000001B 65 (2) 110101111B 431 5. (1) 00100100 00100100 00100100 (2) 10100100 11011011 11011100 (5) 10000001 11111110 11111111 6. 00100101B 00110111BCD 25H 7. 137 119 89 8．什么是总线？总线主要有哪几部分组成？各部分的作用是什么？ 总线是连接计算机各部件之间的一组公共的信号线。一般情况下，可分为系统总线和外总线。 系统总线应包括：地址总线（AB）控制总线（CB）数据总线（DB） 地址总线(AB)：CPU根据指令的功能需要访问某一存储器单元或外部设备时，其地址信
息由地址总线输出，然后经地址译码单元处理。地址总线为16位时，可寻址围为216=64K，地址总线的位数决定了所寻址存储器容量或外设数量的围。在任一时刻，地址总线上的地址信息是惟一对应某一存储单元或外部设备。 控制总线(CB)：由CPU产生的控制信号是通过控制总线向存储器或外部设备发出控制命令的，以使在传送信息时协调一致的工作。CPU还可以接收由外部设备发来的中断请求信号和状态信号，所以控制总线可以是输入、输出或双向的。 数据总线(DB)：CPU是通过数据总线与存储单元或外部设备交换数据信息的，故数据总线应为双向总线。在CPU进行读操作时，存储单元或外设的数据信息通过数据总线传送给CPU；在CPU进行写操作时，CPU把数据通过数据总线传送给存储单元或外设9．什么是接口电路? CPU与接口电路连接一般应具有哪些信号线?外部设备与接口电路连接一般应具有哪些信号线？ CPU通过接口电路与外部输入、输出设备交换信息， 一般情况下，外部设备种类、数量较多，而且各种参量（如运行速度、数据格式及物理量）也不尽相同。CPU为了实现选取目标外部设备并与其交换信息，必须借助接口电路。一般情况下，接口电路通过地址总线、控制总线和数据总线与CPU连接；通过数据线（D）、控制线（C）和状态线（S）与外部设备连接。 10. 存储器的作用是什么？只读存储器和随机存储器有什么不同？ 存储器具有记忆功能，用来存放数据和程序。计算机中的存储器主要有随机存储器（RAM）和只读存储器（ROM）两种。随机存储器一般用来存放程序运行过程中的中间数据，计算机掉电时数据不再保存。只读存储器一般用来存放程序，计算机掉电时信息不会丢失。 11．某存储器的存储容量为64KB,它表示多少个存储单元？64×1024 12. 简述微型计算机硬件系统组成。
全新版大学英语综合教程（第二版）2 TextA参考答案 Unit 1 Text A After listening 1. much more advanced 2. apply some academic pressure, gave in to his pleas/gave up 3. a duck takes to water 4. memorizing (stuff), thinking 5. ample space to grow Text Organization 1-1 The text begins with an anecdote. 1-2 His thoughts are mainly about different approaches to learning in China and the West. 1-3 He winds up the text with a suggestion in the form of a question. 2. 1, show a child how to do something, or teach by holding the hand; teach children that they should rely on themselves for solutions to problems. 2,give greater priority to developing skills at an early age,believing that creativiy can be promoted over time. Put more emphasis on fostering creativity in young children, thinking skills can be picked up later. Language Sense Enhancement (1) summarizing (2) value originality and independence (3) contrast between (4) in terms of (5)harbor (6)fearful (7) comparable (8) promote creativity (9)emerge (10) picked up
To improve our English, it is critical to do more reading, writing, listening and speaking. Besides, learning by heart as many well-written essays as possible is also very important. Without an enormous store of good English writing in your head you cannot express yourself freely in English. It is also helpful to summarize our experience as we go along, for in so doing, we can figure out which way of learning is more effective and will produce the most desirable result. As long as we keep working hard on it, we will in due course accomplish the task of mastering English. Unit 2 With more and more donations coming in, our university will be much better off financially next year. We will thus be able to focus on the most important task that we, educators, must take on: to encourage students to attain their scholarly/academic goals, to train them to be dependable and responsible individuals, to prepare them for the life ahead, and to guide them in their pursuit of spiritual as well as material satisfaction. Unit 3 George, the son of Mr. Johnson, liked listening to heavy metal music in the evenings, which made it hard for other residents in the community to fall asleep. Eventually the exhausted neighbors lost their patience and decided on direct interference. They called Mr. Johnson to tell him in a frank manner what they were thinking. Mr. Johnson assured them that he would certainly settle the issue. As soon as he put down the phone he scolded his son, “What has come over you? You should know better than to disturb others for your own amusement.”In the end George traded his CDs for computer games software from his classmates. Unit 4 Perhaps you envy me for being able to work from home on the computer. I agree that the Internet has made my job a lot easier. I can write, submit and edit articles via email, chat with my colleagues on line and discuss work with my boss. With a click of the mouse, I can get all the data I need and keep up with the latest news. But then, communicating through the Net can be frustrating at times. The system may crash. Worse still, without the emotional cues of face-to-face communication, the typed words sometimes seem difficult to interpret. Unit5 Numerous facts bear out the argument/statement/claim that in order to recover speedily from negative emotion, you should allow yourself to cry. Y ou needn't/ don't have to be ashamed of crying. Anxiety and sorrow can flow out of the body along with tears. Consider the case of /Take Donna. Her son unfortunately died in a car accident. The intensity of the blow made her unable to cry. She said, "It was not until two weeks later that I began to cry. And then I felt as if a big stone had been lifted from my shoulders. It was the tears that brought me back to earthand helped me survive the crisis."