人教版高中英語必修2第三單元公開課課件(15頁PPT)

1、computersWang Wei第1頁，共15頁。Step1 Vocabulary presentationPre-reading第2頁，共15頁。abacus/bks/My grandpa plays the very well, but I can not play the abacus at all.abacus第3頁，共15頁。calculator/klkjlet/This is a CASIO electronic.calculator第4頁，共15頁。huge computerlaptopPC第5頁，共15頁。PDArobot/rbt /第6頁，共15頁。?Whats next?

2、to make these intellectual machines have feelings第7頁，共15頁。Step2 PredictionTask1 Look at the pictures and the title of the reading passage. Predict what it is going to be about.第8頁，共15頁。Task2 Look at these inventions. Put them in order according to the time when they appeared. After reading the passa

3、ge, check to see if you were right.() analytical machine() laptop() calculating machine() robot() PC() universal machine214563第9頁，共15頁。Step1 Skim for the main ideaWhile-readingThe development of computers.第10頁，共15頁。Step2 Scan for detailsParagraph 1Paragraph 2Paragraph 3Topic sentenceOver time I have

4、 been changed quite a lot.These changes only became possible as my memory improved.Since the 1970s many new applications have been found for me.Supporting detailscalculating machineanalytical machineuniversal machinePCtubestransistorssmall chipscommunicationsfinancetraderobotsmobile phones Medical o

5、perationsspace rocket第11頁，共15頁。Step3 Make a timeline1642:1822: The analytical machine was made by Charles Babbage.:1940s: : The first family of computers was connected to each other.1970s:Now: Calculating machine was made in France.Calculating machine was made in France.19361960Huge computers were m

6、ade.Many new applications have been found.It will be more and more advanced to provide humans with a life of high quality.第12頁，共15頁。 Brainstorm a list of things that you, your school and your family use computers for. Think abut what you would have to do if you could not use computers any more.Post-readingTask DiscussionQuestion: how computers have changed our li