1、Unit 4 Cyberspace,Can you imagine a world without the Internet？Its surprising to think about it. Now，China has more than 162 million Internet users，according to the China Internet Network Information Centre.This is the second largest number of users in the world after the United States.Today,66% of
2、Chinese netizens(网民) are teenagers.“They spend about thirteen hours every week online，” said Qian Hulin，an Internet expert.Doctor Song in Beijing Xuanwu Hospital said，“About 14% of Chinese netizens who are teens often last over ten hours to play online games.”,话题导入,The main reasons why teenagers sur
3、f the Net are to search for information，to communicate with others and to have fun.On the Internet，teenagers can find out almost anything.And surfing the Net can help students with their homework and widen their knowledge. Li Dong，a teacher in No.41 Middle School in Shijiazhuang，likes her students t
4、o use the Internet.“When we talk in class，students who surf the Net usually know more background information than the others，” she said. In addition，people can use the Internet to write letters or stories，send e-mails and chat.Many teens keep in touch with their friends online.It is cheaper than pho
5、ning somebody far away and also much quicker.,根据上文回答下列问题,1.Which country has the most Internet users in the world according to the article? _ 2.Why does Li Dong in No.41 Middle School like her students to use the Internet? _,America/The United States.,Because she thinks her students can get more bac
6、kground information by using the Internet.,基础自测,内容索引,要点探究,达标检测,课文预读,Period One Warm-up & Lesson 1 Tomorrows World,基础自测,.重点单词,1. adj.人造的 2. n.洪水，水灾vt.& vi.淹没 3. n.真实，现实adj.真实的adv.真实地 4. vt.影响；使感动 5. adv.快，迅速地adj.迅速的,artificial,flood,reality,real,really,affect,rapidly,rapid,6. n.增长；生长vt.& vi.生长；种植 7.
7、n.犯罪；罪行n.罪犯，犯人 8. n.& vt.攻击，进攻 9. n.混乱，无秩序 10. vt.(汽车、飞机等)撞毁；坠毁 11. adj.乐观的adj.悲观的；厌世的,growth,grow,crime,criminal,attack,chaos,crash,optimistic,pessimistic,12. n.娱乐；款待v.款待；使感兴趣 13. vi.消失 14. vt.& n.伤害，损害 15. adj.明显的，显而易见的,entertainment,entertain,disappear,harm,obvious,1. 组成；编造；弥补；化妆；和好 2. (愿望、梦想等)实现
8、 3. 找出，发现，查明 4. 对悲观/乐观 5. 采取行动,.重点短语,make up,come true,find out,be pessimistic/optimistic about.,take action,.重点句式,1.in the last/past时间段，句子谓语用现在完成时 In the last thirty years，the Internet (grow) rapidly. 三十年来，因特网迅猛发展。 2.it 作形式主语 .，“ is clear that we are going to see a huge growth in shopping on the In
9、ternet.” ，“很显然，我们将会看到网络购物的巨大增长。”,has grown,it,3.as if/though.仿佛，好像 Some experts see our future in virtual realitythe use of computers with sounds and pictures that make you feel you are in a real situation. 一些专家预见了虚拟现实的未来计算机通过声音和图像模拟现实，以使人感到仿佛置身于一个真实的空间中。,as if/though,课文预读,.根据课文内容判断正(T)、误(F),1.More
10、and more computers will be connected to the Internet.( ) 2.The Internet came into the world in the 1980s.( ) 3.Some experts are pessimistic about the future of the Internet because they are worrying that the world wont be safe.( ) 4.Peter Anderson thinks people will be able to work in a virtual worl
11、d.( ) 5.We can live in virtual reality completely.( ),T,F,T,T,F,答案,1.The writer writes this passage in order to . A.show us the bright future of cyberspace B.tell people the disadvantages of the Net C.build up the future picture of the influence of the Net on our life D.make people know about the ad
12、vantages of the Net,.课文阅读理解,答案,1,2,3,4,5,2.We can infer from the passage that . A.cyberspace will affect peoples life greatly B.communicating with your friends on the Internet is always secret C.the Net is sure to have a good effect on peoples life D.the Net is sure to have a bad influence on people
13、s life,答案,1,2,3,4,5,3.Angela Rossetto thinks that . A.e-mail will surely replace mail B.most people think the Net has a bright future C.people will book tickets from the Net D.more and more people will buy what they need on the Net,答案,1,2,3,4,5,4.The word “chaos” in the second paragraph can be repla
14、ced by “ ”. A.an accident B.a disordered situation C.a fire D.an interruption,答案,1,2,3,4,5,5.The main idea of the last paragraph is that . A.people can do everything in virtual reality B.cyberspace will play an important role in peoples life C.the prediction of our life in virtual reality D.people c
15、an not live without the Net,答案,1,2,3,4,5,She also believes that，in the future，we will get entertainment from the Net and that television will probably disappear. 句式分析 本句是一个 句，其中两个that引导并列的 从句，作believes的 。 自主翻译 _ _,.课文难句分析,复合,宾语,宾语,她还确信，我们将来可以在网上进行娱乐活动，而且那时电视很可能不复存在。,小组讨论 Think about the advantages a
16、nd disadvantages of computers and Internet to students.Use the mind map below to help you.,核心素养提升,要点探究,The movies that make up Star Wars are about wars in space. 组成星球大战系列的电影都是关于太空战争的。,重点词汇,(1)make up组成；构成；编造；弥补；化妆；和好 make up for弥补；补偿 make up ones mind下定决心 (2)be made up of由组成(构成),(1)As a result，peopl
17、e will eat more food to try to make up for that something missing. 结果，人们会吃更多食物来补足缺失的东西。(2017全国) (2)Williams two books helped Benjamin to make up his mind to be a painter. 威廉姆斯的两本书帮助本杰明下定决心成为一名画家。(2017浙江) (3)The ocean ecosystem very complex food webs. 海洋生态系统是由非常复杂的食物网组成的。,is made up of,一词多义 写出下列句子中加颜
18、色词的汉语意思 (4)Women always spend some time in making themselves up before going out. _ (5)Our teacher asked us to make up some sentences using the given words. _ (6)The couple quarreled with each other but soon made up. _,化妆,编造,和好,Which of the predictions in them do you think will come true in your lif
19、etime？其中的预言有哪些你认为会在你的有生之年变成现实？,come true (愿望、梦想等)实现 come about产生，发生(无被动语态) come across (偶然)遇见；被理解 come out出版；出现(无被动语态) come up with提出，想出 注意：come true是系表结构，不能用于被动语态，否则要用realize或achieve。sth. come truesth. be realized/achieved，表示“某事被实现了”。,(1)It was when I got back to my apartment that I first came acro
20、ss my new neighbors. 正是当我回到公寓时，我第一次偶然遇见了我的新邻居们。(2017天津) (2)How did it ? 这件事是怎么发生的？ (3)When will her new book ? 她的新书什么时候出版？ (4)I cant any good ideas right now. 我现在想不出什么好主意。,come about,come out,come up with,句型转换 (5)Her hope of living to 100 wasnt realized. Her hope of living to 100 .,didnt come true,s
21、omeone who does terrible things to harm countries，governments and people 做可怕的事来危害国家、政府和人民的人,(1)harm vt.& n.伤害，损害 do sb. /sth. harmdo harm to sb. /sth. 对有害；有害于 Theres no harm in doing sth. 不妨做某事 (2)harmful adj.有害的；伤害的 be harmful to.对有害,(1)He would never do anyone any harm. 他永远不会伤害任何人。 (2)Theres no ha
22、rm in trying. 试试也无妨。 一句多译 (3)吸烟有害健康。 Smoking your health.(harm v.) Smoking your health.(harm n.) Smoking your health.(harmful),harms,does harm to,is harmful to,Peter Taylor finds out how computers and the Internet are going to affect our lives. 彼得泰勒发现计算机和互联网将如何影响我们的生活。,find out找出，发现，查明,易混辨析 find out
23、，find find out指通过研究、观察、调查找出原因，查明事实，发现秘密、错误等，强调主观有意识的动作。 find指偶然或经过一番经历而发现，强调寻找的结果，是终止性动词。,选词填空 find out，find (1)He a wallet when he crossed the street. (2)Scientists are trying to whether life of some kind exists on Mars. (3)I have that the best way to give advice to children is to _ what they want
24、to do and then advise them to do it.,found,find out,found,find out,(1)affect vt.影响；使感动 (2)effect n.影响，效果 take effect开始起作用，见效；(法律、规则或制度)生效 have an effect on对有影响，对起作用,单句改错 (4)He took a quick look at the back of the book to find the answers to the questions., out,(5)Alcohol can affect your attention an
25、d it also has a bad effect on your liver. 酒精会影响你的注意力，还会对你的肝有不好的影响。 (6)After the medicine took effect，I was a little sleepy. 药见效后，我有点困。 单句改错 (7) Affecting by the rise of house prices，people in big cities live under great pressure.,Affected,In the future，terrorists may “attack” the worlds computers，ca
26、use chaos，and make planes and trains crash. 将来，恐怖分子可能会“攻击”全世界的电脑，制造混乱，引发飞机坠毁和火车相撞。,attack vt.& n.攻击，袭击；抨击，责难；(疾病)侵袭 attack sb. with sth. 用某物袭击某人 attack sb. for sth. 因某事抨击某人 make an attack on.对发起攻击 come/be under attack遭到袭击,(1)What does a plant do when it is under attack? 遭到攻击时植物会做什么？(2017全国) (2)The a
27、ttackers get (attack). 袭击者受到了袭击。(2017全国) (3)He was arrested for attacking his brother a knife. 他因用刀袭击他哥哥而被捕。 (4)Newspapers attacked the president failing to cut taxes. 报纸因该总统未能降税而抨击他。,attacked,with,for,句型转换 (5)The enemy attacked our airport last night. The enemy our airport last night.,made an attac
28、k on,It is obvious that this destruction will become more dangerous in the future. 很明显这种破坏在将来会变得更加危险。,(1)obvious adj.明显的，显而易见的 be obvious to sb. 对某人来说显而易见 It is/was obvious that.很明显 (2)obviously adv.显然地，明显地,(1)He tried to hide his obvious pleasure from the music teacher. 他试图向音乐老师掩饰自己明显的快乐。(2017江苏) (
29、2)It is obvious the students they should get well prepared for their future. 对这些学生来说，很明显他们应该为自己的未来做好准备。 (3) (obvious) youre suffering from jet lag. 很显然你正在遭受时差反应的折磨。,to,that,Obviously,In the last thirty years，the Internet has grown rapidly. 三十年来，因特网迅猛发展。,经典句式,时间状语“in the last/past时间段”通常与现在完成时连用。另外rec
30、ently，lately，so far，until now，up to now，by now，(ever) since等也是现在完成时的标志性时间状语。,(1)In the past three years，the children have made great progress. 近三年来，孩子们已取得了很大的进步。 (2)In the last two years，the villagers (plant) thousands of trees on the hill. 近两年来，村民们已在山上种了数千棵树。 (3)Her sister left home in 1998，and (no
31、t，hear) ever since. 她姐姐1998年离开了家，从此再也没有了她的消息。 (4)I (receive) eleven Christmas cards by now. 到目前为止，我已收到了十一张圣诞卡片。,have planted,hasnt been heard,have received,Some experts see our future in virtual realitythe use of computers with sounds and pictures that make you feel as if you are in a real situation
32、. 一些专家预见了虚拟现实的未来计算机通过声音和图像模拟现实，以使人感到仿佛置身于一个真实的空间中。,(1)as if/though可引导表语从句和状语从句。若表示与现在事实相反的假设，从句谓语动词用过去时(be用were)；若表示与过去事实相反的情况，从句谓语动词用过去完成时；若表示与将来事实相反的情况，从句谓语动词用would/could do。 (2)如果as if/though引导的从句所表示的内容与事实相符，则使用陈述语气。,(1)When fat and salt are removed from food，the food tastes as if it is missing s
33、omething. 当把脂肪和盐从食物中去除，食物尝起来就好像缺了什么。(2017全国) (2)The young man with long hair walks as if he (be) a girl. 留长发的那个小伙子走起路来像个姑娘。 (3)He was shaking with fright as if he (see) a ghost. 他正吓得发抖，好像见了鬼似的。 (4)I felt as if my heart (burst) with joy. 我感觉我的心高兴得就要爆了。,were,had seen,would burst,达标检测,.单句语法填空,1.He offe
34、red (lend) me the money. 2.A cinema is a place of (entertain). 3. With the rapid (grow) of population，the lack of housing is becoming more evident than ever before. 4.The whole country is still chaos several years after the war. 5.Its economy has been developing (rapid) in the past ten years. 6.They
35、 do no harm anyone and it is wrong to hurt them.,to lend,entertainment,growth,in,rapidly,to,7.He is very optimistic his chance of winning a scholarship this semester. 8.She is (obvious) worried about something. 9.Jack wasnt saying anything，but the teacher smiled at him as if he _(do) something very
36、clever. 10.When will we make attack to the enemy?,about,obviously,had done,an,.完成句子,11.在过去的几年里，我的家乡发生了巨大的变化。 In the past few years，great changes in my hometown. 12.英语现在是一种约有7.5亿人说的国际性语言。 English is now an international language _ _. 13.真遗憾，他输掉了比赛。he lost the game.,have taken place,spoken by about 75
37、0 million,people,It was a pity that,14.听起来好像有人正在敲门。someone is knocking at the door. 15.他下定决心去查明谁帮助了这位老人。who helped the old man.,It sounds as if/though,He made up his mind to find out,.课文语法填空,In the last thirty years，the Internet 16. (grow) rapidly，and this growth is 17. (clear) going to continue. So
38、me experts are pessimistic 18. the future.One worry is crime in cyberspace.In the future,19. (terror) may “attack” the worlds computers，cause chaos，and make planes and trains crash. 20. ，many people are optimistic about the future of the Internet. Already，users can buy books，find out about holiday o
39、ffers and so on.,has grown,clearly,about,terrorists,However,Angela Rossetto says that in the next few years，it is clear 21._ we are going to see a huge 22. (grow) in shopping on the Internet.She also believes that，in the future，we 23. (get) entertainment from the Net and that television will probably disappear.The mail service may also disappear with the 24._(increase) use of e-mail. Some experts see our future in virtual realitythe use of computers with sounds and pictures that make you feel as if you are in 25. real situation.,that,growth,will get,increasing,a,
