computerswarmingupandlistening

1、Unit 3 Computersperiod 1 warming up As time goes by, the technology develops so quickly that many new things appear in human beings life.Lets guess what they are:guessing gameAn old calculating machine used in China until now.What is it?abacusIt is a new calculating machinewhich can solve a large nu

2、mber of mathematical problems.A calculatorIt is built to solve some mathematical problems. But it is too big. A huge computerIt is a computer which can solve all kinds of problems and is used widely now .A PC / desktop It is a kind of computer which can be taken conveniently(方便).A laptop / notebook

3、computer an abacus a huge computera calculator a PCa notebook computerWhat do they have in common? useful /widely used in everyday life /calculate sth /convenient / fast /easyQ: How much do you know about the parts that make up a computer?keyboardmousemonitorscreenloudspeaker box host computercamera

4、floppy disc 軟盤USB flash dischard discDVD-ROMDigital Versatile Disc Read Only Memory 數(shù)字通用光盤 chipsMedical operationstypeDo shoppingControl space rocketsDo businessSearch informationDO office workEducation CommunicationEntertainmentWhat can computers be used to do in our daily life?1.Besides computer,

5、what else can we get information from?Pre-listening:Information TechnologyListen to Part A and fill in the chart. Then do the same with Part B.Part APart BWhat does IT include?Which form of IT decides the skills of a sport best?What is the most popular form of IT?Which form of IT has the most functi

6、ons?Books, radio and TVbooksTVComputersdiscuss and fill in the chart:Type of ITAdvantagesDisadvantagesBookRadioTVcomputerYou can both listen and_.You cant write to friends.Watch a _, write to _, and _ what is going on in the world.Very_ and too big to _ everywhere. The information is sometimes not _

7、.listen to _.You cant watch a film.A _ way to get _, cheap and _ to take.Sometimes it is_out of date.Englishwatchfilmfind outfriendswonderfulinformationeasycarrycorrectexpensiveWhats next?work for us in Mars(火星)Whats next?What do we use the robots for now and in the future?do houseworkwork in warsact as a friend/pet321Listen to the tape. Can you guess the content?Listening on Page 55It will be about robots.Robot 1HeightAppearanceAbilityPrice35 cmhas five arms to hold all the toolscan do all the work around the houseonly 5,000 yuan1Robot 2HeightAppearanceAbilityP