（新教材）2020-2021学年高中英语人教版必修第二册同步课件：UNIT 3 THE INTERNET PERIOD 3 .ppt

1、Unit 3THE INTERNETPeriod ThreeDiscovering Useful Structures&Listening and Talking课前自主预习1make a comment about _2betweenand_3in shape _4get fit _对加以评论 在两者之间 保持体形；状态良好 保持健康 1I have downloaded the software to _(帮助我的手机电池用的更长久)2My guess is that _(它不起作用)【答案】1.help my phone battery last longer2it wouldnt wo

2、rk课堂新知讲练1function n功能；作用；机能 vi.起作用；正常工作；运转(P30)Theyve built a kind of new PC with more functions.【翻译】他们制造了一种功能更多的新电脑。(1)perform/fulfill afunction 履行职责；发挥作用(2)perform a variety of functions 履行多种职责(3)the function of the heart 心脏的功能【用法详解】【归纳拓展】function as 起作用；具有功能function well/normally 运转良好/正常针对练习完成句子(

3、1)Although the electricity was cut off,the hospital continued to _ _(正常运转)(2)The chair can also _ _(具有功能)a bed.(3)In your new job you will _ _ _ _ _(履行多种职责)【答案】(1)function normally(2)function as(3)perform a variety of functions2confirm vt.确认；使确信(P30)Have you confirmed the WiFi password?【翻译】你确认WiFi密码

4、了吗？(1)confirm的过去式和过去分词均为 confirmed,现在分词为 confirming,第三人称单数为confirms。(2)confirmation 确认；证实；证明；批准(3)confirmatory adj.证实的；确定的【用法详解】【归纳拓展】(1)It has been confirmed that 已证实(2)confirm sb.in(belief/opinion/view)使某人确信(信念/意见/观点)(3)confirm that 证实The expression on her face confirmed her sadness.她脸上的表情证明了她很难过。

5、The latest evidence confirmed me in his honesty.最新的证据让我坚信他是诚实的。针对练习单句语法填空(1)So far,six people _(confirm)that they will attend the meeting.(2)The expression on his face confirmed me _my doubt.【答案】(1)have confirmed(2)in完成句子(3)_ _ _ _ _(已被证实)the meeting will take place next week.(4)My teachers encourag

6、ement _ _ _ _ _that I will surely win the championship of Chinese Poetry Competition.老师的鼓励使我坚信，我一定能获得中国诗歌比赛的冠军。【答案】(3)It has been confirmed that(4)confirms me in the belief3press vt.按；压；敦促(P30)Have you pressed the button yet to copy the file?【翻译】你按下按钮复印文件了吗？(1)press n报纸杂志；榨汁机；印刷机；新闻界；出版社press confer

7、ence 记者发布会；新闻发布会(2)pressing adj.紧迫的；迫切的pressed adj.紧缺的；压平的(3)pressure n压(力)；压强；强制【用法详解】【归纳拓展】(1)pressagainst/to 把压/挤/贴在press sb.to do sth.极力劝说/敦促某人做某事(2)put pressure on sb.给某人施加压力under pressure 处在压力下He pressed the button and the doorbell rang.他按了按钮，门铃响了。The naughty boy pressed his face against the g

8、lass.这个调皮的孩子把他的脸紧贴在玻璃上。针对练习单句语法填空(1)_(press)from his parents,the boy is determined to stop playing computer games.(2)Extra lessons on Sundays put more _(press)on students,who already have lots of homework in fact.【答案】(1)Pressed(2)pressure完成句子(3)Im _ _(处在压力下)from my parents to become a teacher.(4)The

9、 company may have _ _ _(对施加压力)her to agree.【答案】(3)under pressure(4)put pressure on4discount n折扣 vt.打折(P31)Laura needs an app that will help her get discounts.【翻译】劳拉需要一个能帮她获得折扣的软件。(1)discount的复数形式是discounts，过去式和过去分词都是 discounted，现在分词是discounting，第三人称单数形式是discounts。(2)前缀dis“不”，表示否定、相反或相对，如：disagree,di

10、sappear，disappointed；也表示分离、夺去，如：disband(解体，解散),discard(丢弃；扔掉)，discover(揭露，发现)，等。【用法详解】【归纳拓展】Perhaps with a discount and a new sign he could win his customers back.也许打点折、写个新的招牌他就能赢回顾客。At closing time every day，we have some foods on sale at a discount.每天打烊的时候，我们都有一些食品打折出售。针对练习单句语法填空(1)These goods will

11、 be sold _ a discount.(2)The young woman often goes to the market to buy some _(discount)clothes.【答案】(1)at(2)discounted完成句子(3)Theyre _ _ _ _(给予九折的折扣)on all sofas this month.(4)In order to win back the customers,the owner of the restaurant decided to sell his food _ _ _ _(打八折)(5)He told us a piece of

12、 good news that the bookstore near our school was _ _ _ _ _(打折卖书)【答案】(3)offering/giving a 10%discount(4)at a 20%discount(5)selling books at a discount5account n账户；描述(P31)Laura needs an app that will add money to her bankaccount.【翻译】劳拉需要一款可以给她银行账户转钱的软件。account作名词时，翻译为“账目；账单；理由；描述”。作动词时，可译为“认为；把视为”。【用

13、法详解】【归纳拓展】(1)take account oftakeinto account/consideration 考虑on no account决不(置于句首时，句子用部分倒装)give an account of 描述on account of 由于；因为(2)account for 是的原因；解释；导致；占(比例)(3)表示“决不”的常用短语为：in no way,in no case,at no time,by no means,under no circumstances。Youll have to account for why you told a lie to me.你必须向

14、我解释你为什么向我撒谎。Please remind me to go to the bank to open an account this afternoon.请提醒我今天下午去银行开个账户。针对练习单句语法填空(1)She has the habit of keeping an account _ her daily activities.(2)_ no account must you leave the baby alone in the house.(3)It is said that body language accounts _55 percent of a first imp

15、ression while what you say just 7 percent.【答案】(1)of(2)On(3)for完成句子(4)The poor weather may have _ _(是的原因)the increase in the number of people who cough day and night.(5)He was too shocked to _ _ _ _(描述)what had happened.【答案】(4)accounted for(5)give an account of6in shape 状态良好(P31)Xiao Bo is looking fo

16、r a(n)_ app to help him get in shape.【翻译】小波正在寻找一款_应用软件来帮助他健身。in shape“状态良好”，也可译为“处于良好状态”。【用法详解】【归纳拓展】(1)get/stay in shape保持良好身材be back in shape回到良好状态get into shape强身健体(2)in the shape of 以的形状(3)in good/bad/poor shape身体健康/不健康；状态好/不好(4)表示“状态良好”的短语还有：in good condition,in good health,in a good stateHe is

17、 in good shape for a man of his age.对他这个年龄的人来说，他这身体算是不错的了。The economy is in very bad shape and is likely to get worse.经济形势很不好，而且还有可能恶化。针对练习完成句子(1)This battery can last longer,keeping your smart phone _ _(状态良好)(2)Tom always goes jogging in the morning and he usually does pushups to _ _ _(保持身材)(3)Afte

18、r a nights rest,he _ _ _ _(回到良好状态)【答案】(1)in shape(2)get/stay in shape(3)was back in shape7keep track of 掌握的最新消息；了解的动态(P31)Both of Xiao Bos apps keep track of the steps he takes.【翻译】小波的两个应用程序都记录了他所采取的步骤。track n跑道；足迹；铁路轨道vt.&vi.追踪；跟踪【用法详解】【归纳拓展】(1)lose track of 不了解的情况；与失去联系be on the right/wrong track

19、思路正确/错误track and field 田径；田径赛(2)track down 追踪到；追查到The police have lost track of the criminals.警方已失去罪犯的线索。They read the newspapers every day to keep track of current events.他们每天阅读报纸，以了解时事。针对练习单句语法填空(1)Thats not the answer but you are _ the right track.(2)The person who shot the elephant in the circus

20、 was tracked _ and thrown into prison.完成句子(3)I find it difficult to _ _ _(了解的情况)my old friends now.【答案】(1)on(2)down(3)keep track of(P30)I have downloaded the software to help my phone battery last longer.【翻译】我已下载软件帮助我的手机电池用得更长久。【考点提炼】help my phone battery last longer意为“帮助手机电池使用得更加长久”，即“使手机电池用得更久”。he

21、lp sb.do sth.“帮助某人做某事”，此句式中do 也可以写为to do。【归纳拓展】(1)help sb.with sth./(to)do sth.帮助某人某事/做某事cant help doing sth.忍不住做某事cant help but do只得做；不得不做help yourself(to sth.)便自己动手(夹菜吃、用等)(2)with the help of sb.with ones help 在某人的帮助下Group activities will be organized after class to help children develop team spir

22、it.课后会安排小组活动来帮助孩子们培养团队精神。As I held my fathers hands one night,I couldnt help but notice their roughness.一天晚上，我握着父亲的双手，不禁注意到这双手很粗糙。The information gained helped us(to)determine where special attention should be paid in our course.获得的信息帮助我们确定了应该特别注意课程中的哪些地方。针对练习单句语法填空(1)I cant help _(wonder)what happe

23、ned to that little girl.(2)I cant thank him too much,_ the help of whom I have achieved my dream.【答案】(1)wondering(2)with完成句子(3)As he is my best friend，when I am in trouble he will certainly _ _ _.因为他是我最好的朋友，当我遇到麻烦时他肯定会帮我。(4)Faced with so much trouble，I _ _ _ turn to my parents for help.面对这么多困难，我不得不向

24、我父母求助。【答案】(3)help me out(4)cant help but突破语法观察领悟【例句观察】(1)Much has been written about the wonders of the World Wide Web.(2)But the Internet has done much more for people than simply make life more convenient.(3)Many people have been helped by the club.(4)She no longer feels lonely,and her company has

25、 becomequite successful.(5)Today I thought Id blog about a question that has been asked many timeshow do you stay safe online and avoid bad experiences on the Internet?【我的领悟】1现在完成时的主动形式为“have/has done”，强调过去的动作对现在的影响或结果。比如句(2),句(4)。2现在完成时的被动构成为“have/has been done”，也是强调过去的动作对现在造成的影响或结果。如句(1)，句(3)，句(5)

26、。现在完成时的被动语态一、现在完成时的被动语态的结构肯定式主语have/has been done 否定式主语have/has not been done 一般疑问式Have/Has主语been done？特殊疑问式疑问词have/has主语been done？The ink has not been removed from his overcoat.墨迹还没有从他外套上去掉。Has the date for the next meeting been decided?下次会议的日期已确定了吗？How long has the battery not been changed?电池多久没有更

27、换了？He has been selected to take part in the sports meeting.他已被挑选出来参加运动会。二、现在完成时的被动语态的用法1现在完成时的被动语态同它的主动语态一样，强调过去的动作对现在造成的影响或结果，通常与already,yet,just,never,recently等副词连用。The machine has already been repaired.机器已经修好了。2表示一个被动的动作或状态开始于过去，持续到现在，并可能持续下去，常与for或since引导的时间状语连用，或用于“How long？”句型中。How long has th

28、is film been shown?这部电影已放映多长时间了？Financial problems of the company have been discussed fornearly two hours.公司的财务问题已被讨论了近两个小时了。3.用在时间或条件状语从句中，表示将来某时已完成的动作，即用现在完成时的被动语态代替将来完成时的被动语态。You shouldnt leave school before your homework has been finished.在你的作业没完成之前你不应该离开学校。三、现在完成时的时间状语常与现在完成时连用的时间状语有：already(已经

29、);yet(已经);recently/lately(最近);since then(从那时起);ever since(自那以来);ever(曾经);so far(迄今为止);by now(到现在为止);for a long time(很长一段时间);in recent years(在最近几年里);in/during/over the past/last years(在过去的几年里)【归纳拓展】(1)只带有一个宾语的动词变为被动语态时，将主动语态的宾语变为被动语态的主语。His boss has already punished him.He has already been punished(b

30、y his boss)(2)带有双宾语的动词，如give,send,bring,take,teach,show,tell,make,sing,write,read,sell,buy,pay,lend,pass,promise等，在变为被动语态时，一般将间接宾语变为被动语态的主语；若将直接宾语变为被动语态的主语时，间接宾语前面要用相应的介词。He gave the little girl an apple.The little girl was given an apple(by him)An apple was given to the little girl(by him)四、现在完成时和现

31、在完成进行时的区别时态含义现在完成时(have/has done)强调的是某个刚刚完成的动作或某个动作对现在的影响或产生的结果现在完成进行时(have/has been doing)表示过去的动作持续到现在并有可能延续下去；也可表示重复性动作，还可表示某种感情色彩追踪练习.单项选择()1.Excuse me,which movie are you waiting for?The new Star Wars.We _here for more than two hours.AwaitedBwaitCwould be waitingDhave been waiting()2.In my homet

32、own,there is always a harvest supper for the hardworking farmers after all the wheat _.Awill have been cutBwill be cutCwas cutDhas been cut()3.Marty _really hard on his book and he thinks hell have finished it by Friday.AworkedBhas been workingChad workedDhas worked()4.Despite the previous rounds of

33、 talks，no agreement _so far by the two sides.Ahas been reachedBwas reachedCwill reachDwill have reached()5.Just as I got to the school gate，I realized I _ my book in the cafe.Ahave leftBhad leftCwould leaveDwas leaving【答案】1.D2.D3.B4.A5.B.将下列句子改为被动语态1They have just connected the printer to the comput

34、er.2They have put out the big fire.3Tom hasnt sold out all the magazines.4Have you found ways to make waste water clean?5She has already returned this book to the library.【答案】1The printer has just been connected to the computer.2The big fire has been put out.3All the magazines have not been sold out

35、.4Have ways been found to make waste water clean?5This book has already been returned to the library.随堂知能小练.单句语法填空1Their new house _(decorate)for two months and they will settle in it in the near future.2Their new cars _(advertise)on the Internet for a long time.3All the athletes _(select)from milli

36、ons of people all over the country in the past two months.4A new library and a gymnasium in our school _(set)up so far and they will be put into use very soon.5A great many machines _(produce)by the factory since the technological revolution.6Great changes _(take)place in my hometown and a lot of fa

37、ctories _(set)up in the past ten years.7Every possible means _(try)to save the wounded soldier up to now.8How many suggestions _(give)to you so far?9I cant see any coffee in this cupboard._ it all _(finish)?10All the preparations for the task _(make),and were ready to start.【答案】1.has been decorated2

38、.have been advertised3have been selected 4.have been set5have been produced6.have taken;have been set7has been tried8.have been given 9Has;been finished10.have been made.单项选择()1.I didnt ask for the name list.Why _on my desk?I put it there just now in case you needed it.Adoes it landBhas it landedCwi

39、ll it landDhad it landed()2.Tom _in the library every night over the last three months.AworksBworkedChas been workingDhad been working()3.His first novel _ good reviews since it came out last month.AreceivesBis receivingCwill receiveDhas received()4.It is the most instructive lecture that I _ since

40、I came to this school.AattendedBhad attendedCam attendingDhave attended()5.In the last few years thousands of films _all over the word.Ahave producedBhave been producedCare producing Dare being produced()6.The manager _the workers how to improve the program since 9 am.Ahas toldBis tellingChas been t

41、ellingDwill have told()7.In order to find the missing child,villagers _all they can over the past five hours.AdidBdoChad doneDhave been doing()8.We wont start the work until all the preparations _.Aare being madeBwill be madeChave been madeDhad been made()9.Shakespeares play Hamlet _ into at least t

42、en different films over the past years.Ahad been madeBwas madeChas been madeDwould be made()10.During the last three decades,the number of people participating in physical fitness programs _sharply.Awas increasingBhas increasedChad increasedDwill be increasing【答案】1.B2.C3.D4.D5.B6.C7.D8.C9.C10.B.完成句子

43、1 The boys _ _ _ _ _(已经被多次警告)not to swim in that lake,but it doesnt make any difference.2We are glad to be told that Li Tao _ _ _ _ _ _(已经被复旦大学录取)for his top scores.3With the help of high technology,more and more new substances _ _ _(被发现)in the past few years.4 When and where to go for the on salary holiday _ _ _ _(没有确定)yet.5Though we dont know what was discussed,yet we can feel the topic_ _ _(已经被改变了)【答案】1.have been warned many times2has been admitted to Fudan University3have been discovered4has not been decided5has been changed课时作业