新人教版高一英语必修二.pptx

Unit Unit 3 3 ComputersComputersListening Learning aims1.To strengthen the ability of listening.2.To learn to do exercises by using data heard.3.To develop the intrest of listening.1.The 21st century will be the century of Information Technology.Before you listen,discuss in pairs what IT consists puters and Mp5,TV,camera,radioListening and speakingTwo students are talking about information technology.2.Listen to the whole text and write down the main idea in one sentence.3.Listen to Part A and fill in the chart.Part AWhat does IT include?What is the most popular form of IT?computers,books,radio and TVbooksListen to Part B and fill in the chart.Part BWhich form of IT decides the skills of a sport best?Which form of IT has the most functions?TVComputersWhat is information technology?L=Laura D=DavePart A D:Hi,Laura.Its good to see you because Im so bored.My homework is about information Technology but I know everything there is to know about IT.LISTENING TEXTL:Come off it,Dave.I think I might know more than you.D:OK.Let me test you!Heres the first question.Whats information technology?L:Gosh,thats easy!Its computers,of course.D:Ah!Thats just where youre wrong.It includes books,radio and TV as well.L:Really!Well,I never.D:Question number 2.Which is the most popular form of IT in the world?L:Well,that must be computers this time.D:No,its books.Think of all those people in developing countries without computers.Their only form of IT is books!L:Oh dear!Im not doing very well.Part BD:Heres the third question.Which form of IT is the best for describing the skills of a sport?L:It must be the radio.D:Actually,its not.The best describing are on the TV because you can not only hear the technical language,but also see how it happens.L:Goodness!Wrong again!D:Heres the last question?Which form IT has the most functions?L:This time I must be right.Its the computer,of course.D:Yes.You can watch a film,replay a match,communicate with friends through the Internet,get information and find out whats going on in the world.L:Oh dear!Three questions wrong out of four.Perhaps I dont know as much about IT as I thought I did!The advantage/disadvantage is I think/dont think thatGive me your reasonsWhat makes you think so?I thinkbecause of Lets decideAs/Since,I think I agree/dont agreebecauseFirst Second I believe thatIve decided that Lets make a decision4.What are the advantages and disadvantages of each form of IT?Type of IT AdvantagesDisadvantagesTVComputer RadioBookYou can both listen and watchYou cannot write to friendsYou can findinformation.It is not always accurateYou can listen to EnglishYou cannot watch a filmYou can get information.Sometimes it is out of dateFinish exercises on page 42 on workbook.HomeworkThank you