2019-2020年高中英语必修7Unit1Livingwithtechnology-Section1
牛津译林版高中英语模块7 Unit 1 Living with technology Welcome
Unit 1 Living with technology Welcome 教学设计Aims and requirements♦ Read some exhibition boards about the history of television and audio devices，and an article about the dangers of mobile phones♦ Listen to information about electronic dictionaries♦Talk about how modern electronic devices affect our lives and ask for information over the telephone♦ Write an e-mail to give advice♦ Make a list of the advantages and disadvantages of some modern electronic devices Procedures●Welcome to the unitStep 1: BrainstormingNowadays，it seems that man cannot live without such electrical and electronic products as microwave ovens，refrigerators，TV sets，air conditioners，washing machines，electric fans，mobile phones，digital cameras and vacuum cleaners. Do you agree with me？Which do you think is the most useful？What electrical and electronic products do you use in your studies and in your life？(electronic dictionaries，computers，CD players，MP3)Are they helpful or just make you lazier？For referenceElectronic dictionaries give students quick responses in their reading. Students using electronic dictionaries need less time in reading than those who use paper dictionaries. Moreover，electronic dictionaries can provide correct pronunciation to students，which aAs we can see，with the rapid development of electronic technology in the last few decades，electrical and electronic products have made ou r lives more convenient. I’d like to give you some examples.Now，let’s have a discussion: What do you think life would be like without these products？Step 2: Sharing information1. Let’s enjoy some wonderful ads about some electrical and electronic produ cts. What conclusion can you draw？Do you think the progress has made our lives more convenient or has made simple things more complicated？2．Group work. Look at the four pictures at page 1. Let’s study them one by one and try to discuss some questions in group of four.Picture 1What kind of TV do you have at home？What differences can you find between the TV in your home and the TV in this picture？(Early TV had antennae on top. The screen was very small and could show only black-and-white pictures. The size of the TV was small compared with modern TV，and usually it looked like a wooden box. Early TV also did not have a remote control. The control panel was on one side of the screen.)What kind of pictures did early TV have？(Early TV had black-and-white pictures that were fuzzy.)What other functions do you need in a modern TV？Picture 2What did people need when they wanted to record music in the past？(Tapes and a tape recorder.)How did people record music in the past？(People put the tapes into the recorder，then played the tape with music at one side and pushed the play and record buttons at the other side to record the music onto the blank tape.)Look at the picture. What devices do people need to record music now？(A computer，an MP3 player and some recording software.)How do People record music using a computer？(People copy the music from a CD to the computer using recording software. The music will then be digitalized in and played by an MP Player. )Picture 3How do you look up a word in a paper dictionary？(The words in a paper dictionary are arranged in alphabetical order from ‘A’ to ‘Z’. We need to look at the first letter of the word and use it to search in the dictionary. If two words start with the same letter，we look at the second letter to decide the alphabetical order. If the first and second letters are the same，we look at the third letter and so on.)How many of you have an electronic dictionary？How do you look up a word in such a dictionary？(We key in the word we want to look up and cli ck the button ‘Enter’. Then the word entry will appear on the screen.)Besides the dictionary，what else can be stored in your electronic dictionary？(There can be a calendar，a list of addresses and phone numbers，memos or a clock. More recent electronic dictionaries have large memory space and some can be used as electronic books with hundreds of books stored inside.)Which do you prefer，an electronic book or a traditional paper book？Why？Picture 4How did people keep in touch in the past？(People sent letters in the past，but letters wereslow，and they took from a few days to several months to arrive. Then people invented the telegraph，but the telegraph could send only short sentences. Later，people could communicate via telephone，but the disadvantage was that not everyone had a telephone. Now，people use e-mails to communicate. E-mails are quick，but people without computers and access to the Internet cannot send e-mails. Today，most people use mobile phones to keep in touch with others. The size of a mobile phone is small so people can carry one in a pocket and receive and make calls wherever they are and whenever it is.)What recent developments have been made to mobile phones？(Now，mobile phones have more and more functions. They can send text messages. They can also be used as a digital camera to take still or even moving pictures. People can send the pictures they take to other mobile phones or e-mail addresses. Mobile phones can be connected to the Internet and people can look at web pages with mobile phones. More technologically advanced mobile phones can receive TV signals so that people can watch live TV programmes on their mobile phones.)It is reported that many high school students bring mobile phones to their schools. Do you think high school students should use mobile phones at school？Why or why not？Please express your ideas freely and make sure that all of you have a chance to speak. Step 3: Discussion:1. How have different electronic devices changed over time？2. How have these inv entions improved people’s lives？Step 4: Homework:1. Collect more information about the development of some electronic and electrical devices.2. Prepare the Reading part.。
牛津译林版高中英语选修七Module 7 Unit 1 Living with technology .docx
高中英语学习材料***鼎尚图文理制作***Module 7 Unit 1 Living with technologyWelcome and ReadingA. 词形变换1. construct__________________ (n.)2. electric _____________________(n.)3. accessible____________________(n.)4. apply ______________________ (n.)5. evolution ___________________ (v.)6. component____________________(v.)7. convenience ____________________(adj.)8. storage _______________________(v.)9.adaptation_____________________(v.)10. wind _________________(pp.)B. 短语翻译:做贡献，有助于______________________ 做出重大突破_____________________二十世纪二十年代晚期______________ .获益于__________________________跟上…________________________上发条__________________________ 便携式袖珍盒带播放器_______________ .播放唱片___________________________ 依赖________________________ 由……组成___________________公众，大众____________________ 由…..决定____________________用作…..的替代物_________________ .原则上____________________ .对…..怀疑的_______________________ .实现首次远距离电视播送：之后不久对电视的发展做出贡献有缺点使用许多由某人首先发现的原理直到…..才花某人多少时间做某事短时期内被用来做某事允许某人做某事现场直播接收节目使电视节目为居住在偏远地区的人们收看看到卫星天线遍布整个乡村及偏远地区一小部分人住在附近的居民C 用所给的短语的正确形式填空contribute to …, benefit from …, keep pace with …,wind up, be absorbed in, rely on, make up1. Your suggestion has greatly ________ the accomplishment of our work.2. As your best friend, you may ________ me to help you.3. Bank loans during the prosperity decade did not ________ the rising level of economic activity.4. Who is likely to ________ the new tax laws?5. Could you ________ the window ________, please?6 The girl sat quietly in the classroom, ________ in her book.7. Women ________ only a small percentage of the prison population.D．单项选择:1. The old clock needs ________ every day, otherwise it will stop workingA. to turn upB. to wind upC. winding upD. wind down2. The situation is hard to ________, because he isn’t a man easy to ________.A. be dealt, communicateB. be dealt with, be communicatedC. deal with, communicate withD. deal , be communicated with3 They ________ invited if there had been room.A. would have been allB. would have all beenC. all would have beenD. would all have been4..My elder brother wants to buy a _____ computer, so that he can carry it around when hetravels.A. removableB. portableC. possibleD. readable5. Who is it up _____ decide what to do next?A. toB. to toC. for toD. to for6. ---How is everything going on with you in Europe?---Quite well. Not so smoothly as I hoped,______.A. thoughB. insteadC.eitherD. too7. ---Why didn’t you tell him about the meeting?---He rushed out of the room_______ I could say a word.A. beforeB. untilC. whenD. after8. Ten ____ the students are absent.A. per cent ofB. percentage ofC. per centD. percentage9. They drove along with all the car windows ____.A. wound upB. winding onC. winded upD. wind up10. It was ______back home after the experiment .A．not until midnight did he go B．until midnight that he didn't goC．not until midnight that he went D．until midnight when he didn't go11.._____ though he was, even he couldn’t get into Harvard.A. A smart studentB. The smart studentC. Smart studentD. Smart students12.Try____ she might, she couldn’t get the door open.A. IfB. whenC. sinceD. as13. The Internet makes more and more violent games _______to children.A. accessibleB. avoidableC. acceptableD. adjustable14.It was_______he came back from Africa that year______ he met the girl he would like to marry.A.when; thenB. not; untilC. not until; that D only; when15 According to a UN report, one third of the world population have no ____to clean drinking water and health care.A. meansB. approachC. channelD. access16. It is more than ten years ___________he worked here.A that B. since C. before D. when17. They delayed ______ the sports meeting.A. to holdB. to haveC. holdingD. taking place18.. The river ______ its way between the two mountains.A. followsB. windsC. flowsD. gets21．Not until recent years ________ a popular means of communication.A．e —mail has become B．e—mail becameC．has e—mail become D．will e—mail become22.Tomorrow I will see myself _________by my family ,_________a delicious dinner.A. accompanying enjoyingB. accompanied enjoiedC.accompanied enjoying C. accompany enjoy23. Patience is ___________it takes to take good care of the naughty boys.A. whatB. whichC. thatD. where24．—The space technology will be ________ great benefit to us in the future.—Yes.Now we are benefiting more and more ________ it.A．of；of B．of；fromC．for；of D．for；fromE、用括号中所给的提示翻译句子。
牛津译林版必修七 Unit 1 Living with technology
Module 7Unit 1 Living with technology新课标单词review n. 回顾，综述wireless adj. 无线的long-distance adj. 长途的，远距离的broadcast n. 播送，广播broadcasting n. 播送，广播uncertain adj. 不确定的altogether adv. 总共，一共；完全，全部age n. 时代superior adj. 优越的，占优势的consumer n. 消费者signal n. 信号；暗号questionnaire n. 问卷，调查表recording n. 录音，录音制品wind vt. 上发条；缠，绕play vt. 播放record n. 唱片electric adj. 电的patent n. 专利apply vt. & vi. 应用，运用；申请portable adj. 便携的，手提的pocket-sized adj. 口袋大小的，袖珍的demand vt., vi. & n. 需要，需求，要求degree n. 程度；度，度数；学位spring vi. 跳，跳跃；弹起personally adv. 从个人角度，主观地；亲自delight n. 喜悦，快乐，高兴vt. & vi. 〔使〕高兴，〔使〕欣喜variety n. 多样，种种evolution n. 演变，演化，进化birthplace n. 出生地，诞生地assume vt. 假设，设想，以为convenience n. 方便，便利merely adv. 仅仅，只有accompany vt. 陪伴，陪同ownership n. 所有权，物主身份anyhow adv. 无论如何，不管怎样selection n. 可选之物；所选之物；选择，挑选familiar adj. 熟悉的budget n. 预算all-round adj. 功能齐全的；全方位的，全面的weigh vi. 重量为…… vt. 称……的重量，称measure vt. & vi. 测量，度量elegantly adv. 优雅地，高雅地，优美地shape vt. 使成形；塑造，制造suitable adj. 合适的，适合的scan vt. 扫描；细看，审视；浏览elegant adj. 优雅的，高雅的，优美的case n. 套子；盒子，匣子guarantee n. 保证；商品使用保证advancement n. 促进，增进；前进，进步；提高，增加necessarily adv. 必然，必须，必定caution n. 谨慎，小心actual adj. 真实的，实际的expose vt. 使暴露，使显露；使暴光；使处于……作用〔或影响〕之下，使遭受equal adj. 相等的；平等的link n. 联系，关联valid adj. 有根据的，有理的，有效的，令人信服的theory n. 理论，原理，学说；意见，看法，推测，假说profit n. 利润，利益，赢利unwilling adj. 不愿意的，不情愿的thus adv. 因此，因而处adj. 平行的，类似的，相同的acknowledge vt. 承认，认可faith n. 相信，信任；信仰，信念honest adj. 诚实的，真诚的conference n. 会议，研讨会worrying adj. 令人担忧的课文出现短语1. keep in touch with2. shortly after3. contribute to4. consider… to be5. be superior to6. have access to7. come onto the market8. combine…with9. respond to10. add…to11. for the first time (ever)12. spring up13. wind up14. move on to15. It’s up to you to do sth16. up to (three minutes) 17. look into18. head for19. stand for20. in time for21. a variety of22. by means of23. by accident24. by mistake25. up to date26. capable of27. in particular28. above all29. provide sb with sth.30. be based on31. concentrate on32. not necessarily33. be exposed to34. the amount of35. be equal to36. part of37. previous to38. point out39. be unwilling to do sth40. be associated with41. have faith in42. for the time being43. be confident of44. in that case一．单词应用根据单词的首字母或汉语意思填写正确单词，注意形式变化。
牛津译林版高中英语选修七Unit 1《Living with technology》语法讲练讲解
Unit1 Living with technology语法讲解Transitive verbs and intransitive verbs动词得种类动词得种类比较复杂,大致可以根据其在句子中得功用分为及物动词与不及物动词,连系动词介乎二者之间。
及物动词与不及物动词(Transitive and intransitive verbs)1、及物动词要求有直接宾语。
如:John Ford himself opened the door to me、2、不及物动词则不需要宾语。
如:The car stopped、3、及物动词可以有一个或两个(直接与间接)宾语或复合宾语。
如:Mist clothed the hills、They gave him the first injection、4、只有及物动词可用于被动语态。
如:The meeting will be held in the town hall、5、许多动词既可用作及物动词,又可用作不及物动词。
如:He turned his horse’s head androde away、 Tom turned towards Maggie、6、有些不及物动词有时可用作及物动词。
如:He walked the horse to and fro、7、有些不及物动词用作及物动词时可后接同源宾语。
如:Morell dreamed an extraordinary dream last night、8、有些动词形式相似,但一为及物动词,一为不及物动词,有lay与lie,raise与rise,set与sit等。
如:They’ve raised a statue in memory of Robert Burns、 The kite rises in the sky、9、有些及物动词常用作不及物动词以表示被动意义,这时主语往往就是物而不就是人。
如The books sold out in a week、连系动词(linking verbs)1、连系动词就是一个表示谓语关系得动词。
人教版新课标高中英语 2019-2020年 选修 七 Unit 1 Living well Le
Unit 1Living welLearning about Language & Using LanguageⅠ.单句填空1.The manager refused to comment on the news that he had planned(resign).2.I think it is a top priority for us to furnish the children with access the Internet.3.They made high profit by buying at a lower price while selling at a higher price.4.I met some trouble when I took this exam.5.“We can t go out in such terrible weather,” said Ted,(look) out of the window.6. (abolish) the unfair treaty wasn t an easy job, but they said they would never give up their efforts.7. Hearing the news, we came to their (assist) at once.8. The young assistant often assists us preparing tools for experiments.9. He came up to me to offer his (congratulate) on my success.10. Many students are not (adequate) prepared for higher education.Ⅱ.短语填空meet with;never mind;resign from;all the best;assist…in;approve of;have access to;a row of1.On the farther side of the street there was small shops.2.—Sorry to trouble you.—. What can I do for you?3.Her father will never her marriage to Tom.4.Mr Primakov gave a full account of his the president in the flesh.5.Wish you in the coming year.6.Hackers may have the big data without anyone knowing.7. The public is urgently requested to the police tracing this man.8. Today I am announcing that I will be my position as a member of the club. Ⅲ.句型训练1. His knowledge and experience this job.他的知识和经验足可胜任这项工作。
2019-2020年高中英语必修7Unit1Livingwithtechnology-Section3Welcometotheunit
2019-2020年高中英语必修7Unit1Livingwithtechnology-Section3Weletotheunit1. With mobile phones, we can keep in touch with others wherever we are. (P1)whereverIt introduces an adverbial clause here. The usage of “—ever” is as follows:however◆作连词，"不管用什么方法"。
He can go however he likes.◆作副词，"无论如何"、"不管怎样" However cold it is, he always goes swimming.◆作副词，"究竟怎么"（表示惊奇）。
However did you find it?whenever◆作连词，"任何时候"。
Whenever we see him we speak to him.◆作副词，"任何时间""任何时候" He might turn up on Monday , or Friday, or whenever, and expectto be given a meal.wherever◆作连词，"在任何地方"、"到任何地方"、"在任何情况下"。
Sit wherever you likewhatever◆"whatever"作代词，=no matter what "无论什么"、"无论如何"。
Keep calm, whatever happens ◆"whatever"作代词，=anything or everything that "任何的事物"、"每一……的事物"。
牛津译林版高中英语模块7 Unit 1 Living with technology Section
·4. Broadcasting TV began in 1962 by satellite.
·Satellites allow TV to be broadcast 5. live over The
vast distances. modern age
·Thanks to satellites, people living far away from
John Logie Baird.
(F )
2．Colour TV became popular within just a few years after it
was invented.
(F)
3．Satellites allow TV to be broadcast live over vast
distances.
( T)
4．The first record players had to be wound up by hand but
they could play records for a long time.
( F)
5．Traditional records and cassettes do not offer as good a
Ⅰ.Read the text carefully and decide whether the following
statements are true (T) or false (F).
1．Modern TVs use many of the principles first discovered by
·In 1928, the first tape recorders used for Sound and 8. copying sound were made in .
2019-2020年高中英语选修7Unit1LivingwithTechnology
2019-2020年高中英语选修7Unit1LivingwithTechnology知识点罗列Key words:Useful phrasesImportant sentences:1. It is up to sb. to do sth.由某人决定做某事2. I am less worried about…我不担心3. double the price / the size / the lengthe两倍的价格/尺寸/长度Grammar & Usage:1. 介词介词短语知识点归纳1. apply for sth. to sb.向某人申请某事 apply A to B.把A应用到B上apply oneself to (doing) sth.致力于，集中精力做某事 = apply one’s mind to sth.他努力干好新工作。
_________________________________________这种标准不适用于孩子。
_________________________________________他专思考这个问题。
_________________________________________Key: He applied himself to his new job. The rule doesn’t apply to children.He applied himself / his mind to the problem.2. demand 常用结构meet / satisfy one’s demands满足某人的需求in demand需求量大；有需求demand to do sth.要求去做某事demand sb. of sth.要求某人某理damand that sb. (should) do sth.要求make the demand that…(should) do My demand is that…It is demanded that…3. delight n. & vt.with deligth高兴地，乐意地to one’s delight令某人高兴的是be in high delight非常高兴地take delight to do / in doing sth. 高兴地做某事be delighted to do 高兴地做某事be delighted at因…而高兴be delighted with sth.由于某事而高兴1）令他高兴的是，他的小说得到了公众的认可。
2019版一轮复习英语译林版：必修七 Unit 1 Living with technology
Unit 1Living with technology科普知识与现代技术之(二)——与科技同在[一积词汇见多识广][课内单词回扣](一)阅读词汇写其义1．evolution n．演变，发展；进化 2.drawback n．缺点，缺陷；不利条件3．tube n．管子；管状物；伦敦地铁 4.wind v t. &v i.上发条；缠绕；蜿蜒5．digital adj.数码的，数字式的 6.ample adj.足够的，充足的，丰裕的7．circumstance n．条件，环境，状况8.merely ad v.仅仅，只不过9．sacrifice v t. &n．牺牲10.stable adj.稳定的；稳重的(二)表达词汇写其形1．principle n．原理；道德原则 2.delay v t. &v i. &n．(使)推迟3．eventually ad v.最后，终于 4.obvious adj.显然的，显而易见的5．suitable adj.合适的，适当的 6.typical adj.平常的；典型的7．rid v t.摆脱；去除；丢弃8.elegant adj.精美的；优雅的(三)拓展词汇灵活用*1.construct v t.制造；修筑，建造→construction n．建筑*2.accessible adj.可使用的；可接触到的；可到达的；易理解的→access n．通道，通路；机会，权利*3.distribute v t.使分布，分散；分发，分配；分销→distribution n．分布，分散；分发，分配，发送→distributor n．销售者；批发商；分销商*4.adaptation n．适应；改编本，改写本→adapt v．适应*5.casual adj.非正式的，随便的；漫不经心的，不经意的→casually ad v.随便地；偶然地；临时地6.insurance n．保险；保障措施→insure v t.给……保险；确保*7.translation n．翻译；转化→translate v t.翻译；转化→translator n．翻译者，译员8.vote v i. &v t.投票，选举，表决n.选票；选举，表决→voter n．投票人；有选举权的人9.reject v t.拒绝，拒收；不予考虑，不予录用→rejection n．拒绝10.tight adj.亲密的，紧密的；紧的；紧身的；严密的→tightly ad v.紧紧地；坚固地11.oppose v t.反对，抵制，阻挠；与……竞争→opposed adj.相反的，反对的用上面加*号的单词的适当形式填空1．Though it was a casual appointment, soon his warm, inviting smile put me at ease, and we spent the next two hours talking casually.2．His property was distributed among his sons. But unexpectedly, they had a conflict about the distribution.3．Free Internet access at home is a huge step in making online education accessible to everybody.4．The workers are constructing the bridge damaged by the flood, and the bridge under construction connects the road with the town.5．A translator shouldn't introduce his own opinions into what he's translating.6．This new film is said to be adaptedfrom a novel by Jane Austen and the adaptation is popular with people.[话题单词积累]1．biotechnology /'baiəutek'nɔlədʒi/n．生物科技2．transplant /træns'plɑːnt/n. &v t.移植3．clone /kləun/v t. &v i. 克隆4．technological innovation 科技创新5．new frontier /'frʌntjə/新领域6．astronaut /'æstrənɔːt/n. 宇航员7．astronomer /ə'strɒnəmə/n. 天文学家8．planet /'plænIt/n. 行星9．telescope /'telIskəʊp/n. 望远镜10．universe /'juːnIvзːs/n. 宇宙11．globe /gləʊb/n．地球仪，地球12．gravity /'grævItI/n．重力，地球引力13．orbit /'ɔːbIt/n．(天体等的)运行轨道14．rocket /'rɒkIt/n. 火箭15．atmosphere /'ætməsfIə/n. 大气层，大气16．astronomy /ə'strɒnəmI/n. 天文学17．accelerate /ək'seləreɪt/v. 加速18．sophisticated equipment 尖端设备19．energy crisis 能源危机20．depletion of resources 能源消耗21．advanced science 尖端科学22．portable /'pɔːtəbl/adj. 便携的23．innovative /'ɪnəveɪtɪv/adj. 创新的24．cutting-edge /'kʌtɪŋ'edʒ/adj.尖端的25．cost-effective /kɒstɪ'fektɪv/adj.性价比高的26．scientific exploration 科学探索27．substitute /'sʌbstɪtjuːt/v. 取代28．milestone /'maɪlstəʊn/n. 里程碑29．alternative fuel 可替代燃料[二积短语顿挫抑扬][课内短语回扣](一)根据汉语写出下列短语*1.keep_in_touch_with与……保持联系 2.rid_..._of_..._摆脱，除去3.for_good_measure额外*4.contribute_to有利于，促进*5.benefit_from从……中受益*6.be_accessible_to可接近的7.keep_pace_with跟上8.in_particular特别地，尤其*9.answer_for负责10.adjust_to适应11.be_shaped_like形状像*12.rather_than而不是13.be_suitable_for适合……*14.be_absorbed_in全神贯注于15.wind_up上发条；把(汽车窗玻璃等)摇上(二)用上面加*号的短语完成下列句子1．Their inventions have contributed_to the development of electrical engineering.2．Now we can use the Internet to keep_in_touch_with each other.3．There are many organizations which could benefit_from your efforts.4．Their coach must answer_for the team's poor performance.5．He is_absorbed_in his experiment so he hasn't had a bite since morning.6．Tom, rather_than you, is to answer for it.7．All of the public transport facilities serving the Olympic Park will be_accessible_to wheelchair users.[话题短语积累]1．have more functions有更多的功能2．bring us more advantages给我们带来更多的好处3．become more convenient and colorful变得更便捷，更多彩4．become a threat to our mankind成为人类的威胁5．disturb man's normal social order扰乱人类的正常社会秩序6．make good use of its advantages and try our best to avoid its disadvantages扬长避短7．new and high technology industry 高新技术产业8．test-tube baby 试管婴儿9．GMF＝genetically modified food 转基因食品10．household robot 家用机器人11．industrial robot 工业机器人12．intelligent terminal 智能终端[三积句式写作扮靓][课内句式仿写]1．强调句式：It is/was not until ... that ...“直到……才”[例句]John Logie Baird constructed the first colour TV in 1928, but it was not until 1938 that the first colour TV programme was broadcast.[仿写]直到我读了《海国图志》，我才意识到改革开放的重要性。
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2019-2020年高中英语必修7Unit1Livingwithtechnology-Section1
Section 1 A text structure analysis of TV and audio devices: a review
I. Summary of TV and audio devices: a review
Main idea of the passage brief introduction of the history of TV and audio devices
Main idea of part 1early history of TV
Main idea of part 2TVs in modern age
Main idea of part 3early history of audio devices
Main idea of part 4the development of tape recorders and players
Main idea of part 5the use of digital technology in sounds
II. A tree diagram of the text
III. A retold version of the text TV and audio devices: a review
The reading passage is a review of the development of the development of TV and audio devices.
It provides some information about the history, the current situation and the future improvement of TV and audio devices. Take TV for example, the first public showings of wireless TV transmissions took place way back in 1925. Then TV kept progressing in the following decades and in xx, 66 per cent house holds in the USA had cable TV. As with TV, audio devices have been developing rapidly and surprisingly. These inventions all bring great convenience and delight to people’s lives.。