Computer-facts.ppt

Module 2 Science and technologyOxford EnglishUnit 3Computerschat on QQplay gameswatch videoslisten to musictypecalculatemonitorkeyboardmousespeakersmain unit1 The _ shows words and pictures.2 We use the _ for typing.3 The“brain”of a computer is in the _.4 We move the _ to control the computer.5 We hear sound from the _.How much do you know about computers?Look at the photos below and complete the sentences with the correct names.Read aloudRead aloudTrue or False1 Computers are getting bigger and better.()2 You may be aware of computers.()3Computers always give wrong answers 4when they calculate.()4Computers may work as doctors.()5Computers are cleverer than human beings.()FsmallerFTFFunawarealmost neverHuman beingscomputersSmaller and betterIn the 1940s,the first computers were bigger than cars.Now computers are becoming smaller and better.Some computers are tiny.You may be unaware of them.There is probably one inside your TV or washing machine.You depend on computers more than you realize.Computer factsListen to the first part of the article and answer some questions.1What were the first computers like?_2.Why are we unaware of some computers?_3 Where can you find computers at homeThey were bigger than cars.Because they are tiny.We can find them inside our TVs or washing machinesWhile you readWhile you readWhat can we do with computers?We can use computers to calculate.They can calculate at a faster speedthan we can and almost never givewrong answers.We can also type anddraw things with them.In addition,computers can do important jobs likeoperating railways and flying planesand spaceships.Listen to the second part of the article and complete the table.We can use compu-ters tocalculateAdvantages(优势)Examplescalculate at a faster speed than we canalmost never give wrong answerstype and draw thingsdo important jobsfly planesoperate railwaysWhat can we do with computers?fly spaceshipsIs a computer cleverer than me?The answer is“No”.Your brain can produce newideas but computers cannot.However,one daycomputers may be able to do a better job thanhuman beings.For examplethey may be betterthan doctors at doing their job.What will happen to us if computers can do all ourjobs?Will we have nothing to do?Computers may change our lives,but will they make them better?Listen to the third part of the article and answer some questions.No,it isnt.Because the human brain can produce new ideas but computers cannot.The job of a doctor.We may have nothing to do.Fill in the blanks and then recite the summary of the text In the 1940s,the first computers were bigger than cars.Now they are becoming smaller and .Computers can calculate at a fast and almost never give wrong answers.We can also and draw things with them.In ,computers can do a lot of important jobs like railways and flying planes and .But they are not than people,because human beings can produce .However,one day computers may be to do a better job than human beings.They may our lives,but will they make them better?betterspeedtypeadditionoperatingclevererspaceshipsideasablechange1I cant type because the _ doesnt work.2You _ on your parents too much.You should learn how to look after yourself.3 My father _ as an engineer.His job is to _ some big machines and repair them.4 CPU is the“_”of a computer.Its a _ part in the main unit.5 Getting angry may make you lose friends,so it is important to _ your feelings.6 He is driving at a speed of 150 km per hour.Its very dangerous,but he is _ of the danger.dependkeyboardoperateworkstinybraincontrolunawareComplete the sentences with the words you have just learnt.Homework1.Complete the sentences with the words you have just learnt.2.Exercise book3.Page 34 A B and Page 38 A4.3.Learning English 5.Page 1 and 4