m7u1Welcometotheunit市公开课一等奖省赛课微课金奖课件.pptx

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,Living with technology,Unit 1,Welcome to the unit,1/17,To look at the four different electrical and electronic devices(P1)and discuss how these devices have changed our lives,2/17,Many things have been invented in the history of mankind and more and more things are to be invented.,Technology has seen some developments in the last few decades.,What,electrical and electronic appliances(电器),do you have at home?,Lead-in,3/17,Which do you think is the most useful?,4/17,Electronics have developed very quickly in the last decades.,Do you think these things have made our lives more convenient or have they made simple things more complicated?,5/17,Whats your opinion on these products?,6/17,They are invented to meet peoples needs.,They have improved peoples lives to some degree.,They are developing very quickly.,The radiation from some of the electrical or electronic devices,such as mobile phones,may be harmful to peoples health.,When people buy new electrical or electronic devices,they throw away the old ones.This may generate a large amount of waste,which is harmful to the environment.,7/17,Picture 1,:Compare the TV in the picture with the TV in your home.,1.antennae(天线)on top,2.a small screen,3.only black and white pictures,4.no remote control,8/17,Development of TV,black-and-white TV,colour TV,LCD screen,液晶显示器,9/17,Picture 2,:How did people record music in the past?,Put the tapes into the recorder,in the past.,P,eople need to record music now,:,A computer,an MP3 player,a mobile phone and some recording software.,10/17,gramophone(留声机),radio/tape recorder,MP3 player,CD player,Development of audio(音响)devices,11/17,Picture 3,:,How do you look up a word in a paper dictionary?,We key in the word we want to look up and click the button Enter.Then the word entry will appear on the screen.,How do you look up a word in an electronic dictionary?,12/17,Development of dictionaries,paper dictionary,electronic dictionary,13/17,Picture 4:,How did people keep in touch in the past?,-by letter/telegraph/telephone,How do people keep in touch now?,-mostly by mobile phone,14/17,Development of communication,letter/telegram,telephone,cell phone,15/17,Development,of cameras,mobile phone,with a camera,digital camera,traditional camera,16/17,Microwave ovens,Refrigerators,TV sets,Air conditioners,Washing machines,Vacuum cleaners,Dishwasher,Computers,CD players,Mobile phones,Digital camera,Electronic dictionaries,blower,17/17,