海南华侨中学三亚学校人教版高中英语必修二：UNIT3 READING第二课时 课件 .ppt

1、Unit 3 Computers ReadingLead in(导)1.Review the new words2.Guessing gameWith the development of science and technology,many new things appear in human beings life.Lets guess what they are:1.With me you can watch different programmes just at home.Im a machine that has a screen with moving pictures and

2、 sounds.But watching me too much is bad for your eyes.TV set 2.I am a machine which moves very fast on four wheels.You need a license(执照)and must be very careful when you drive me.Rolls Royce,Benz and BMW are some famous kinds of me.car3.I am a machine which is a good helper in doing house work.I wa

3、sh clothes for people.Who am I?washing machine4.A machine that you use to talk to other people even in a far-away place.We are connected by wire or radio.Now each of us often has a number.Who am I?telephone5.It is a machine,which you can use to type your homework,drawpictures,play games,watch movies

4、,listen to music,communicate withyour friends,gather information computerThingking(思)1.Go over the story to find out who the speaker is.Write down 3 sentences to support your idea.2.Find out the topic sentences of each para.Dicussing（议）1.Read the passage and finish the timeline below.2.Fill in the b

5、lanks.164219361940s1970snowComputers connect people _ _ _ _.18221960sThe computer _ _ _ _ machinebegan as a calculatingThe _ machine was made by Charles Babbage.analyticalThe computer grew _ both in _ and in _.rapidlyComputers had _ _ _ _ a room.grown as large asThe first family of computers was con

6、nected to each other.Computers were used in _ and _.officeshomessizebrainpowerall over the worldEarly days(the first paragraph)Name Function(功能)a _machinesimplify difficult sumsan _machinethink _a _machinesolve difficult _ _analyticallogicallyuniversalmathematical problemscalculatingShowing and comm

7、ent(展、评）network times(the 2nd and 3rd paragraph)_my memorytubes _transistorssmall chipssince the 1970s _have been found in many fields(领域)._;finance;_;robots;mobile phones;_;space rocketsapplicationscommunicationtrademedical operationsShowing and comment(展、评）Testing（测）It began as a _ machine in 1642

8、 in France.In 1822 it was built as an _ machine.Then in 1936 Alan Turing wrote a book and built a _ machine.As time_ _,it was made smaller but its memory grew _ and _.In the 1960s they gave it a family connected by a _.Now people call it the Internet.It was used in _ and _ since the 1970s.Since its birth it has truly been built to help the _ _.calculatinganalyticaluniversalwent bylargerlargernetworkofficeshomeshuman raceExercise（练）Homeworks:1.Finish exercise 1,2 P19,the text book.Thank you!