（新教材）2019-2020学年北师大版英语必修第二册同步学案课件：UNIT 4 SECTION Ⅰ　TOPIC TALK .ppt

1、1Unit 4INFORMATION TECHNOLOGY2主题语境人与社会之科学与技术【语境概说】本单元的主题语境为人与社会中的科学与技术，该主题语境主要包括科技发展与信息技术创新、科学精神、信息安全等。本单元主要涉及科技发展与信息技术创新、信息安全。通过本单元的学习，学生将对科技发展和信息技术创新有新的认知；同时在语言能力、文化意识、思维品质和学习能力等方面得到融合发展。34Information technology is the first productive force in the 21st century.信息技术是21世纪的第一生产力。Information is the c

2、arrier for mankind to inherit civilization and grasp the future.信息是人类传承文明，把握未来的载体。The development of high-tech is both a blessing and a curse.高科技的发展确实是一柄双刃剑。Science is endless；it is an eternal mystery.科学是永无止境的，它是一个永恒之谜。5.Pre-listeningTranslate the following words and phrases.1explore vt._2convenienc

3、e n._3order vt._4download vt._5recommendation n._Section Topic talk探究；探讨方便，便利订购下载建议；推荐66update vt._7personality n._8video chat with sb _9enable sb to do sth _10communicate with sb _更新个性，性格和某人视频聊天使某人能做某事和某人交流7.While-listening1Finish Ex.2 on Page 6.2Finish Ex.4 on Page 7.8.Post-listeningListen to Acti

4、vity 2 again and fill in the blanks.W：I love _ new technologies,because they are so convenient.You know,I use apps to buy things online and I usually receive them the same day!M：Wow，thats really _W：Indeed！I know one that can even help you get what you order within two hours!M：What is it？Id like to t

5、ry that,too.W：Sure，_Besides shopping online,I also like _ online.It makes me feel less lonely.Technology really enables people to communicate better with each other.exploringconvenienthere it ischatting9M：Thats true！But are there any disadvantages about these new technologies?W：Well，too much chattin

6、g online takes a lot of time.We really need time to _ what we are doing.focus on10.语言知识积累关于网上购物的常用口语1Do you often shop online?你经常网上购物吗？2Sometimes I surf online shops to check out what they have and then go to a physical store to do the actual shopping.有时候，我会逛逛网店，看看店里有什么，然后到实体店去买。3Can the quality of

7、goods online be guaranteed?网上商品的质量能有保证吗？114Prices are often relatively lower online.通常，网上的价格相对比较低。5Even though I shop online,I dont think its the best way to shop.虽然我在网上购物，但我认为这并不是最好的购物途径。6You can apply for a refund if you are not satisfied with the goods bought online.如果你对网上买的东西不满意，可以申请退款。7Theres s

8、till a long way to go before online shopping to be well recognized by the general public.网上购物要得到人们的认可，还有很长的路要走。12.BrainstormingHow is information technology applied in our daily life?Information technology is applied in many aspects of our daily life，including heath care，transport，education，communic

9、ation and so on.13.Make sentences after the model.1I love exploring new technologies，because they.我喜欢探索新技术，因为它们仿写 我喜欢探索新技术，因为它们非常方便/使生活更轻松/能促进更好的交流。I love exploring new technologies,because they _.2I use apps to.online我使用应用程序在网上仿写 我使用应用程序在网上聊天/交流/放松/购物。I use apps to _ online.are so convenient/make l

10、ife easier/enable better communicationchat/communicate/relax/buy things143I also like chatting online.It.Well,too much chatting online.我也喜欢网上聊天，它当然，网上聊天太多仿写我也喜欢网上聊天，它使交流变得方便/我感觉不那么孤独/信息更容易找到。当然，网上聊天太多使我们变得自我关注/生活在一个虚幻的世界/上瘾/花费很多时间。I also like chatting online.It _Well,too much chatting online _.makes

11、 communication convenient/me feel less lonely/information easier to findmakes us self-focused/live in an unreal world/addicted to it/takes a lot of time15.Talk about the Internet using the following sayings or proverbs.1In this world of rapid technological progress,if you want to survive,you must co

12、ntinue to learn.在这个科技进步得飞快的世界，你想要活下去，就要不断地学习。2If you miss the Internet,you will miss not only the opportunity,but an entire era.如果错过互联网，与你擦肩而过的不仅是机会，而是整整一个时代。163Great Internet applications will either change how people access information or how they communicate.伟大的互联网应用要么改变人们对信息的获取方式，要么改变人们的沟通方式。4No

13、 invention has received more praise and abuse than Internet.没有一项发明像互联网一样同时受到如此多的赞扬和批评。17The Internet is playing a more and more important part in our daily life.On the Internet,we can learn news both at home and abroad and all kinds of other information as well.We can also send messages by e-mail,ma

14、ke phone calls,go to net schools,read different kinds of books and learn foreign languages by ourselves.Besides,we can enjoy music,watch sports matches and play chess or cards.On the Internet,we can even do shopping,have a chat with others and make friends with them.In a word,if you miss the Interne

15、t,you will miss not only the opportunity,but an entire era.18.文化知识习得地球村地球村，是说地球虽然很大，但是随着广播、电视、互联网和其它电子媒介的出现，大家交流就像在一个小村子里面一样便利。“地球村”(global village)一词是加拿大传播学家M.麦克卢汉1967年在他的理解媒介：人的延伸一书中首次提出。麦克卢汉对现代传播媒介的分析深刻地改变了人们特别是当代青年人，对20世纪以及21世纪生活的观念，他所预言的地球村在今天的社会已经变成了现实。在麦克卢汉看来，“地球村”的主要含义不是指发达的传媒使地球变小了，而是指人们的交往

16、方式以及社会和文化形态发生了重大变化。19地球村是互联网的发展；是信息网络时代的集中体现；是知识经济时代的一种形式；而现代交通工具的飞速发展，通信技术的更新换代，网络技术的全面运用使地球村得以形成。20.学习策略形成如何有效地进行听说训练1听懂文章大意在听力过程中，不能只在意单词，要在意句子本身的意思，有些地方听不懂没关系，要了解整篇文章在说什么。2积累语言知识整理每次听力材料中的新知识点、新单词，通过语境去记忆。213训练听说能力听说能力可以从听写、精听、跟读和复述四个方面来训练。(1)听写：先总体听一遍材料，了解大意；然后听文章句子，写下来，倒回去再听；直到把它完全写出来。(2)精听：将听

17、力材料一字一句地写下来，精确到标点符号。(3)跟读：先对照着文本，精听至少三遍；然后尝试以相同的节奏跟读听力材料，不断地跟读，理想情况下平均8遍之后可以跟上材料的语速。(4)复述：整段复述(保证段落长度的复述时间不超过1分钟)。224不要害怕犯错误学习英语口语是在不断犯错误的过程中练习、进步的。因此练口语应该积极主动，克服害羞心理，利用一切机会讲英语。231.convenience n方便，便利；便利的事物convenient adj.方便的；便利的inconvenience n.不方便；不便inconvenient adj.不方便的provide convenience(教材P6)提供便利合

18、作探究体会convenience及其派生词的用法和意义We hope to discuss business with you at your earliest convenience.我们希望尽早与你方洽谈业务。We have provided seats for the convenience of our customers.为方便顾客，我们备有座位。Will it be convenient for you to chat with me on the Internet tonight?你今晚和我网上聊天方便吗？24自主发现_ ones convenience 在某人方便的时候_ on

19、es convenience(of)_ the convenience of sb 为了某人的方便It is _ for sb to do sth 某人方便做某事名师提醒convenient作表语时，不可用人作主语，要用物作主语或用it充当形式主语。表达“如果你方便的话”和“在你方便的时候”时，要分别用if it is convenient for you和when it is convenient for you。atforforconvenient25词块积累for convenience 为了方便起见convenience food/store 方便食品/便利店巩固内化(1)单句语法填空

20、These gates are always open _ the convenience of visitors.Any help from you will be greatly appreciated.Please give me a reply _ your convenience.Will it be convenient _ you to start work tomorrow?foratfor26(2)一句多译方便的话，我们希望你能接受我们的邀请。We hope you will accept our invitation _.(convenience)We hope you w

21、ill accept our invitation _.(convenient)at your convenienceif/when it is convenient for you272.effect n效应；影响；结果(教材P6)effective adj.有效的合作探究体会effect的用法和意义While online shopping has changed our life,not all of its effects have been positive.虽然网上购物已经改变了我们的生活，但它的影响并不全是积极的。The new traffic rule came into ef

22、fect.Now,it is beginning to take effect.In effect，it has an effect on peoples life in many ways besides peoples focus on the road safety.新的交通法规开始实施了。现在它开始生效了。实际上，除了人们对道路安全的关注外，它还在很多方面影响着人们的生活。28自主发现come _ effect 生效，开始实施_ 生效，开始起作用_ effect 实际上，事实上have a/an.effect _.对有影响词块积累side effect 副作用cause and eff

23、ect 因果intotake effectinon/upon29巩固内化 单句语法填空Should house property tax(房产税)come _ effect，China might witness a fall in house prices.Optimism has a positive effect _ peoples physical and mental health,of which Im very convinced.He said he graduated from a famous university，but _ effect，he never went to

24、 college.One of the most _(effect)ways to reduce stress is to talk about your feelings with someone you trust.intoon/uponineffective303.addicted adj.对着迷的；沉迷的addiction n癖好addict vt.使沉溺；使上瘾n有瘾的人makes us addicted to it(教材P6)使我们对它上瘾合作探究体会addict的用法和意义Teenagers who are addicted to the Internet are more li

25、kely to suffer from depression.有网瘾的青少年更可能患忧郁症。Her son addicted himself to smoking,which had a bad effect on his health.她的儿子吸烟上瘾，这对他的健康有很坏的影响。Addicted to playing the violin,he didnt find a thief walk into his house.他醉心于拉小提琴，没有注意到小偷进屋。31自主发现be/become/get _ to sth/doing sth 沉溺于；专心做addict _ to sth 沉溺于巩固

26、内化 一句多译很多孩子沉迷于上网，因此他们对学习失去了兴趣。Many kids _ surfing the Net,and so they have lost interest in study.Many kids _ surfing the Net,and so they have lost interest in study._ surfing the Net,many kids have lost interest in study.addictedoneselfare/become/get addicted toaddict themselves toAddicted to324.ad

27、mit vt.&vi.承认；容许；接纳；容纳 admission n承认；许可Well，I admit it.(教材P99)好吧，我承认。合作探究体会admit的用法和意义He had to admit having made a serious mistake in public.他不得不当众承认犯了一个严重的错误。I have to admit that time can change everything，including your face and your mind.我不得不承认，时间可以改变一切，包括你的容颜和你的想法。The concerned mother became ex

28、cited to hear the news of her sons having been admitted to the university.担忧的母亲听到她儿子被大学录取的消息十分激动。Our football team decided to admit him as one of the members.我们的足球队决定吸收他为本队队员。33自主发现admit _/that.承认be admitted _ 被接纳进入admit._.接纳作为doing/having doneto/intoas34巩固内化(1)单句语法填空Little Jack admitted _(steal)in the shop,promising that he wouldnt do that in future.He studies very hard in order to get himself admitted _ a key university.(2)一句多译他承认无证驾驶。He admitted _ without a driving license.He admitted _ without a driving license.having stoleninto/tohaving driventhat he had driven35本节内容结束