英语必修Ⅱ北师大版UNIT4金牌课件（共23张）L1.ppt

1、Imagine life in the next twenty years.How do you think technology will change our life?Step1 Lead-in which do you think the title will mention?the internetartificial humantime travelrobotsglobal warmingvirtual realityCheck your guess by reading the text.the internetartificial humantime travelrobotsg

2、lobal warmingvirtual realityStep 2 Fast-readingRead the article again and match the vocabulary from the text in the box below with the definitionshacker,chaos,terrorist,the net(Internet)virtual reality,crashMatch them!terroristVirtual realitychaoscrashthe Nethacker123645Step3 Checking 1.connectto1.c

3、onnectto 2.be pess2.be pessimisticimistic about about 6 opt 6 optimistic imistic 3.get into the computers3.get into the computers 4.cause chaos4.cause chaos 5.5.makemake planes and trains planes and trains crashcrash 7.get all sorts of information7.get all sorts of information 8.in the future8.in th

4、e future 9.9.withwith the increasing use of email the increasing use of emailStep 4 Detailed-reading1.Why are some experts pessimistic(悲观的）about the future of the Internet?2.Why are some people optimistic（乐观的）about the future of the Internet?crimeyoung hackersSome are _ _ the future ()1._ in cybersp

5、ace.2._ can get into the computers of bank and governments.3._may“_”the worlds computers,cause chaos,and make planes and trains _.pessimistic aboutterroristsattackcrashdisadvantagesThe question is _Some are _ _ the future ()1._ can _ all sorts of information from the internet.2.We will get _ from th

6、e net and _will disappear.3._ may also disappear with the increasing use of the _.optimistic aboutThe mail servicee-mailtelevisionadvantagesUsersgetentertainmentThe question is _Some experts see our future in _-the use of computers with _ and _ that make you feel as if you are in a real _.Personally

7、,I think _will become a part of modern life.We will _,_,even _in a virtual schools.The question isvirtual realitysound picturessituationvirtual reality work shop studyhow the computer and the Net are going to affect our lives.The structure of the passage (文章的写作结构）How does the computer and the Net ar

8、e going to affect our lives.disadvantages:pessimistic(悲观的）advantages:optimistic（乐观的）some experts opinions on our future virtual reality Topic Sentence:（中心句）PessimisticPessimisticOptimisticOptimisticPessimisticPessimisticPessimisticPessimisticOptimisticOptimisticOptimisticOptimisticThe structure of t

9、he article:The growth of the InternetPessimistic opinionsOptimistic opinionsVirtual realityIntroductionDifferent opinionsPrediction文件 F编辑E 插入I 格式 O 工具T帮助H Computers and the Internet affect our lives.More connection More activities done on the Internet More attacksFORWARD文件 F编辑E 插入I 格式 O 工具T帮助H More

10、ConnectionIn 1983,there were only 200 computers connected to the Internet but now there are around 50 million.The Internet has grown rapidly.We see a huge/rapid growth in the Internet.BACK文件 F编辑E 插入I 格式 O 工具T帮助H More activities done on the Internetactivities done on the Internetdo net shoppingget al

11、l sorts ofinformationget entertainmentfind out holidayofferssend emailbook ticketsFORWARDcause chaosget experience invirtual realityBACK文件 F编辑E 插入I 格式 O 工具T帮助H the use of computers to make situations feel and look realPeople can get various experiences in virtual reality.e.g.virtual school,virtualto

12、urism,BACK文件 F编辑E 插入I 格式 O 工具T帮助H chaosA terrible situation in which everything goes wrong.Yesterday my computer was attacked by a virus.Everything seemed to be in chaos.BACK文件 F编辑E 插入I 格式 O 工具T帮助H Cyberspaceterroristscriminalshackersattackcause crimecause chaosmake planes and trains crashinformatio

13、n disappearMore attacksBACK文件 F编辑E 插入I 格式 O 工具T帮助H terroristsomeone who does terrible things to harm countries and peopleThe plane driven by terrorists crashed into the twin towers.文件 F编辑E 插入I 格式 O 工具T帮助H activities that are against the lawcrimecriminalBACK文件 F编辑E 插入I 格式 O 工具T帮助H pronunciationaffect

14、 cause attack crashdisappearartificial virus floodchaos crime cyberspacecriminal hacker terroristentertainment offervirtual realityglobal warmingStep 5 DiscussionVoice your own opinion:Do you feel pessimistic or optimistic about the future of the internet?Why?Discuss and write how telephone is going to affect our lives.PessimisticPessimisticOptimisticOptimisticPessimisticPessimisticPessimisticPessimisticOptimisticOptimisticOptimisticOptimisticStep6 Homework Review the textWrite how telephone is going to affect our lives.