课件22张PPT。Unit 4 Computer facts Answer these questions.What can we use computers to do?…bigsmalltiny/'ta?n?/ adj.The computer inside is so tiny that you don’t know about it.are unaware ofEveryone knows there is a computer in this washing machine.It is common knowledge/??n?'we?(r)/ adj.aeroplane/'e?r?ple?n/ are called/??lek?tr?n?k/electronic brainsDo you know other jobs?BrainstormUnit 4 Computer factsFind the five headings in the passage.Computers … 1 are getting smaller. T / F 2 can do important jobs like flying aeroplanes. T / F 3 may work as doctors. T / F 4 can’t recognize your voice. T / FcanMatch the headings with pictures.cdebaabedcMatch the headings with main ideas.cdebaThe size of computers:_____ The jobs of computers: _____ Computers VS humans:_____ The abilities of computers: _____ The useful parts of computers: _____cebadHistory of computersthe first computersdesktoplaptoppalmtop_____/?pɑ:mt?p/Read the first part of the passage again and complete the table.Computers have become _____.bigger than carsthe size of televisionsthe size of big bookssmall enough to put in your pocket like a bar of chocolateso tiny that you may be unaware of themsmaller and smaller?Computer factssizesmaller smaller_____and _____first computersdesktopslaptopspalmtopstinyComputers are called _____ and _____.super calculatorselectronic brainsThey can calculate very fast and rarely give wrong answers.=almost neverThey can type, print and draw things.They can teach you and play games with you.They can operate railways and fly aeroplanes and spaceships.?Computer factssize_____and _____smaller smallerfirst—desktop—laptops—palmtop--tinyjobs1.super _____ 2._____calculatorselectronic brainscalculate/_____type/print/draw/ teach/play/ operate/flyDiscuss: What else can computers do?Is a computer cleverer than I am?For the time beingNoOne daymay1. What job will a computer probably be better at than a human? 2. What questions will it raise if a computer is cleverer than a human brain?Read and answer:Why?Because your brain can understand the meaning of things better and create new ideas.Doctors.?Computer factssize_____and _____smaller smallerfirst—desktop—laptops—palmtop--tinyjobs1.super _____ 2._____calculatorselectronic brainscalculate/_____type/print/draw/ teach/play/ operate/flyComputers PK humansWhat? How? Will?Discuss: what other jobs will computers probably do better?Watch and discuss: are you afraid of the development of computers?HomeworkA: 1. Read the words and phrases . 2. Read the first three parts fluently. B: Write some sentences about the computers.
