Unit 4 Information Technology Section ⅡLesson1 ppt课件（2020）新北师大版高中英语必修第二册.pptx

1、UNIT 4 INFORMATION TECHNOLOGY Section Lesson 1 AVATARSDo you use a photo of yourself or a different image as an avatar when you are online? Why?Pre-readingLook at the pictures and the title on Page 89，and predict what the text is probably about.While-readingFirst readingRead the text and match the m

2、ain idea with each paragraph.Part 1 (Para.1)AThe views on the use of avatarsPart 2 (Para.2)BAvatars are everywhere nowadays.Part 3 (Paras.34) CThe history of avatarsPart 4 (Para.5)DThe definition of avatarsPart 5 (Para.6) EThe purposes of avatarsSecond readingRead the text carefully and choose the b

3、est answer.(1)When were avatars being used in web chats like instant messenger?AIn the 1980s.BBy the late 1990s.CNowadays.DIn the 1970s.(2)What does a picture of a cute cat mean?A“I like relaxing and having fun.”B“Im a really funny person.”C“Im tall，young and nicelooking.”D“I like being creative.”(3

4、)Who could see your avatars?AOnly your friends.BMany people.CNo one.DOnly your family.BABSecond readingRead the text carefully and choose the best answer.(4)What people can use avatars do?AAct just like a real person.BTravel around bigger，more exciting virtual worlds.CHelp others online.DCheat other

5、s online.(5)What is the purpose of the text?ATo introduce some information about avatars.BTo express yourself using pictures.CTo introduce the history of avatars.DTo introduce definition of avatars.DAThird readingRead the text carefully again and then fill in the form below. DetailsDefinitiona digit

6、al that represents an Internet user . 1980sThe first simple 2D avatars in roleplaying computer games.Late 1990sAvatars were being used in web like instant messenger.PurposesTo expressoneselfPeople discovered they were going to have the power to create new identities that didnt look or act like their

7、 real at all. Avatars let you express yourself and they give you lots of room for To representoneselfThe avatar you choose says a lot about your .ViewsPositiveSome view avatars in a more way. . The use of avatars has also caused a few .imageHistoryappearedchatsselvescreativitypersonalitypositiveNega

8、tiveconcernsPost-reading1What does the writer mean by saying “The avatar you choose says a lot about your personality.”？Do you agree with the writer？Give examples to support your opinion. 2Can you give examples of how the use of avatars may cause risks online？What can you do to prevent such risks? D

9、iscussing Words 1to trick others 来欺骗别人trick vt. 欺骗，诱骗，哄骗 n骗局，把戏，玩笑，诀窍trick的用法和意义:The boys hid Johns bike to play a trick on him.男孩子们把约翰的自行车藏起来捉弄他。You cant teach an old dog new tricks.老狗学不会新把戏。He tricked me into lending him $100.他骗我借给了他100美元。He tricked the girl out of all her money.他骗了那个女孩所有的钱。play a

10、 trick/tricks sb.欺骗/捉弄/戏弄某人trick sb. doing sth. 骗某人做某事trick sb. sth. 从某人处骗走某物onintoout of2By the late 1990s, they had been used in web chats like instant messenger.到了20世纪90年代后期，它们已经被应用在网络聊天，如实时通信中。instant adj.即时的，立刻的，马上的 n瞬间；片刻instantly adv.立即地 conj.一就instant的用法和意义:The telegram asked for an instant

11、reply.这封电报要求立即回复。I shall be back in an instant.我马上就回来。I couldnt answer for an instant.我一时答不上来。The instant (that) I saw him, I knew he was the man the police were looking for.我一看见他就认出他正是警方在寻找的那个人。an reply立即回复in instant 片刻，瞬间 an instant 一瞬间 instant (that) 一就instantanforthe3. The use of avatars has als

12、o caused a few concerns.虚拟形象的使用也引起了很多的担忧。concern n担忧，忧虑vt.与有关；使担心concerned adj.担心的，烦恼的，忧虑的concerning prep.关于；有关concern的用法和意义:She showed great concern for her sons illness.她非常担心儿子的病情。She is concerned about how little food I eat.她见我吃得那么少，很是担忧。The book is primarily concerned with the economic situation

13、 in Europe during the World War .本书主要讲的是第二次世界大战期间的欧洲经济形势。Everyone who was directly concerned in the incident has now resigned.与该事件有直接牵连的人现在均已辞职。As far as I am concerned, I prefer to work in a team，which offers me a chance to learn how to get along with others.就我而言，我更愿意在团队中工作，这为我提供了如何与他人相处的学习机会。show

14、concern 对表示关心be concerned 关心/挂念be concerned 与有关/有牵连as/so far as.be concerned 就而言forabout/forwith/inconcerned充当前置定语时，意为“关心的，挂念的”；如果表示“有关的”，作定语要后置。如：a concerned father一位担心的父亲；all the people concerned所有相关的人员。4The use of several avatars can also be a risk, as people can use avatars to cheat others onlin

15、e.某些虚拟形象的使用也可能是一种风险，因为人们可以使用虚拟形象在网上欺骗他人。cheat vt.欺骗；欺诈 n骗子cheat的用法和意义:She meant to have cheated her aged aunt out of her fortune.她本打算从年迈的姨妈那里骗取财产。This politician tried to cheat the people into the belief that he would work for public welfare.这个政客试图哄骗人们相信他会为大众谋福利。He is nothing but a cheat.他只不过是个骗子。Th

16、e salesman cheated her into buying a fake.那个推销员骗她买了件赝品。1.cheat sb. doing sth.骗某人(做)某事cheat sb. sth. 骗取某人某物intoout of5However，other users view avatars in a more positive light.然而，其他用户用更积极的眼光看待虚拟形象。view vt. 看，把视为；考虑 n风景；视野；观点；见解view的用法和意义:Being an orphan, he viewed his aunt as his mother.由于是孤儿，他把他的姨妈看

17、作妈妈。In my view，it was a waste of time and money.在我看来，那是浪费时间和金钱。He climbed up to the top of the church tower to get a better view of the entire city.他爬上教堂的塔顶为了更好地看到整个城市。When the old man opened the window, a stranger with a high hat came into view.当这个老人打开窗户时，一个带着高帽子的陌生人进入了视线。view. .把看作 ones view 在某人看来

18、get/have good view of 清楚地看到；饱览come view 进入视野；看得见asinaintoPhrases 1Yet, very few people knew that future avatars would have such a wide variety of forms and uses.但是，几乎没有人想到，虚拟形象在未来居然有如此多样的形式和如此广泛的应用。a variety of 各种各样的various种类繁多的vary with sth 随而变化vary from.to. 从到不等；在到之间变动He left for a variety of reas

19、ons.他由于种种原因离开了。Varieties of flowers are sold in the market.市场上出售各种花卉。Opinions on this matter vary from person to person.对于这件事，人人意见不一。2They could dress their avatars in fancy clothes，or they could try being someone of the opposite sex, and call themselves “Andy” instead of “Anna”！他们可以给虚拟形象穿上奇装异服，或者他们

20、可以尝试成为异性，称自己为“安迪”而不是“安娜”！instead of代替，作为的替换(1)instead of表示“代替，作为的替换”，为介词短语，其后常接名词、代词或v.ing作宾语。(2)instead副词，意为“代替，顶替”，单独使用。Instead of going to Qingdao，Im going to Dalian this year.今年我将去大连，而不去青岛。Mr Wang is ill.I will take his class instead.王老师病了，我将替他上课。3They look forward to a time when their avatar wi

21、ll act like a real person and travel around bigger，more exciting virtual worlds.他们期待着有朝一日，自己的虚拟形象会像真人一样去环游更广阔、更精彩的虚拟世界。look forward to期望，盼望(to为介词)look into往里看；调查look out 向外看；当心；小心look up to 仰视；尊敬；赞赏look down on/upon 俯视；轻视；看不起look through 浏览；仔细查看Were really looking forward to seeing you again.我们真的盼望着

22、能再见到你。Her parents tell her not to look down upon/on countrymen.她父母叫她不要瞧不起乡下人。Look through this proposal for me，and tell me what you think of it.替我好好看一下这个提案，并把你的想法告诉我。Sentences 1They also experiment with things like different hairstyleswhich says a lot，perhaps，about what they want to look like.他们也会尝试

23、像不同的发型这样的事情，这很可能会体现他们理想中的样子。句中“what they want to look like”为what引导的宾语从句，what在从句中作宾语。what引导宾语从句时，在从句中可以作主语、宾语、表语和定语。They dont know what happened.他们不知道发生了什么。(what在从句中作主语)You cant imagine what he was ten years ago.你无法想象他10年前是个什么样的人。(what在从句中作表语)I dont know what books he likes reading.我不知道他喜欢读什么书。(what在

24、从句中作定语)2Some users worry that they are spending so much time in virtual worlds that they are becoming afraid of meeting people in the real world.一些网民开始担心自己在虚拟世界沉溺太久，以至于开始害怕在现实中与人交往。句中“so much time.that.”为“so.that.”结构。(1)so.that引导结果状语从句，意为“如此以至于”。其常见形式为：He was so foolish that he accepted her invitati

25、on.他接受她的邀请真是太傻了。It is so good a camping spot that Id like to go there again.这个露营地点如此好，以至于我想再去一次。There were so few guests that the host felt sad.宾客如此之少，主人感到伤心。(2)such.that.意为“如此以至于”，such后接名词，常见形式为：It is such a heavy box that I cant lift it.这个箱子如此重以至于我提不起来。They are such lovely children that we all lov

26、e them.这些孩子非常可爱，我们都喜欢他们。Grammar过去将来时一、基本构成过去将来时表示从过去某个时间看将要发生的动作或存在的状态，常用于宾语从句或间接引语中。过去将来时常用“should/would动词原形”或“was/were going to动词原形”来表达。过去将来时是由“should/would动词原形”或“was/were going to动词原形”构成的。过去将来时的基本特征，即“立足过去，着眼未来”。它表示从过去某一时间来看将要发生的某个动作或存在的某种状态。但这个“将来”时间绝不会延伸到“现在”，而仅限于“过去时间区域内”。二、用法He said that he w

27、ould wait for us at the bus stop.他说他要在车站等我们的。 Whenever we had trouble, he would come to help us.每当我们遇到困难时，他总会给予帮助。 I didnt know when she would come，but when she came I would let you know.我不知道她什么时候来，但她来了我会告诉你。The teacher said that it would be very difficult to make progress if I didnt work hard.老师说，如

28、果我不努力学习的话，就很难取得进步。We were going to go to the cinema when the phone rang.我们正准备去电影院，这时电话响了。(1)过去将来时可以表示从过去某时看来将要发生的动作或存在的状态。(2)条件状语从句和时间状语从句中须用一般过去时代替过去将来时。(3)was/were going to do表示准备、计划做某事，或将要发生某事。三、其他结构I couldnt go to Toms birthday party as I was about to go to hospital.我不能参加汤姆的生日晚会，因为我要去医院。He was o

29、n the point of leaving when we came in.我们进来时，他正要动身。A lot of people were coming to watch the fireworks.有许多人要来观看焰火。She told her mother that she was going to a dance with Tom.她告诉母亲，她要和汤姆一起去参加一个舞会。She said she was to take up the position.她说她要承担这个职务。The train was supposed to arrive half an hour ago.火车本应在

30、半小时之前到达。What was meant to be a funny story fell completely flat.原欲使之成为有趣的故事，结果完全变得索然寡味。(1)was/were about to do这种结构表示“正要、即将做某事”；was/were on the point of doing这种结构表示“正要时”。(2)go，come，leave，take off等少数动词可用过去进行时表示过去将要发生的情况；was/were to do表示曾计划做某事。(3)was/were supposed to do和was/were meant to do可以表示过去计划做，但没有做的事。Bye-bye!