人教版高中英语 必修二 Unit3 《Computers---Pre-Reading》 课件(共24张PPT).ppt

1、Unit 3 ComputersBefore reading,Try to put these inventions in an order according to the time when they appeared.(make a prediction in your mind)()analytical machine ()laptop ()calculating machine ()robot ()PC ()universal machinePre-reading(P17)Connection?Task 1 Task 1 SkimmingSkimming1.Who is the sp

2、eaker in this story?A computer.2.Whats the main idea of the text?A.The computer wants to find“who he is”.B.The function of the computer.C.The computer becomes popular around the world.D.The changes and the applications of the computer.A tip:The key words in the text may help you to summarize the mai

3、n idea of the text.Task 2scanningRead the text quickly and find out the history of computers.Many new _have been found.16421822Now19361960s1970sThe computer began as a_.The _was built by Charles Babbage._wrote a book about how computers could be made to work as a_.The first family of computers was c

4、onnected to each other by_First as a _and then as a _,Computers were used in offices and homes.The history of computers:1940s The computer had grown_.TimelineWhat happened?calculating machineanalytical machineAlan Turinguniversal machineas large as a rooma network.applicationsPClaptopBefore reading,

5、Try to put these inventions in an order according to the time when they appeared.()analytical machine ()laptop ()calculating machine ()robot ()PC ()universal machinePre-reading(P17)The development of computers:Calculating machineAnalytical machineUniversal machinePCLaptopRobotTask 3Detail reading Fi

6、nd the topic sentence of each paragraph and the supporting details.Over time I have been changed quite a lot.1.Calculating machine2.analytical machine3.universal machine4.PC5.laptopThese changes only became possible as my memory work5.World Wide Web Since the 1970s many new applications have been fo

7、und for munications 2.finance 3.trade4.robots 5.mobile phones6.medical operations7.space rocketsuA topic sentence tells us the main idea of a paragraph.uA topic sentence is usually the first or last sentence of a paragraph.summaryTask 4 Discuss&speaking What can we do on a computer in our daily life

8、?search for some informationwatch movieslisten to musicread books/magazinessend emails to friendsDownload filesDo shopping on lineplay gamesdraw pictureslook at photographs Do homeworkCommunicate/chat with my friends.do homeworkdraw picturesplay gamescommunicate with my friendsSearch for some informationlisten to musicwatch moviesShopping online.Thankyou!