必修二unit3 computers reading阅读优质课课件

1、1.the topic sentence of each paragraph. Paragraph 1: paragraph 2: paragraph 3:2.So the whole passage is mainly about_.Task 1 Scanning(Task 1 Scanning(略读略读) ) Over time I have been changed quite a lot. These changes only became possible as my memory improved. Since the 1970s many new applications hav

2、e been found for me.Fast-reading the development of computers.Task 2 Careful Reading( Task 2 Careful Reading( 细读细读) )Read the passage more carefully and find more information about computers.Then fill in the two forms below. 1642 19361940s 1970s nowThe computer _ _ _ _ machine1822Alan Turing _ _ _ _

3、 how computers could be made to workComputers had _ _ _ _ a room.1960sFirst as _ _and then _ _ _ computers were used in _ and _. Computers connect people all over the world together as devoted _ and _. A family of computers was connected by a_. The _ machine was made by Charles Babbage.began as a ca

4、lculating analyticalwrote a book aboutgrown as large asa PC as a laptopnetworkofficeshomesfriendshelpersFrom the above form, we can know that the text is written in an order of _timefind more information about the development of computers. Fill in the blanks. Early days (paragraph 1) Name Function(功

5、能功能)a 1._ machinesimplify difficult sumsan 2. _ machinethink 3._a 4._ machinesolve difficult 5._ _analyticallogicallyuniversalmathematical problemscalculating network times (paragraph2&3) 6._my memory tubes7._transistorssmall chipssince the 1970s8._have been found in many fields(领域领域).9._; finan

6、ce;10. _; robots; mobile phones; 11._; space rocketsapplicationscommunicationtrademedical operationscalculating machineanalytical machineuniversal machineartificial intelligencePC( desktop/notebook )serve the human raceGoal?Network BASICInternetHow the computer technology has been developing:consoli

7、dation Read the passage and choose the best answers.1.What can we learn from the text?A Computer has a short history.B No one knows computer when the first computer was made.C Computers are not widely used even today. D Computers are widely used.2. Who was the computers real father?A Alan Turning B

8、Not mentioned in the text. C Bill Gates D Charles Babbage3 .The computer almost changed completely _.A in 1642 B in 1882 C in the 1960s D in the 1970sDAC It began as a _ machine in 1642 in France. In 1822 it was built as an _ machine. Then in 1936 Alan Turing wrote a book and built a _ machine. As t

9、ime_ _, 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 bylargerlargernetworkoffic

10、eshomesTest in classSummaryhuman race What are advantages and disadvantages of computers? How can we make use of it? Should high school students Should high school students surf surf the internetthe internet( (上网上网)? )? advantages we cancommunicate with friends listen to the music see films & watch news play games do shopping save a lot of time do a lot of useful things Disadvantages Some people especially the teenagers abandon (沉迷于沉迷于) themselves to the computer games and chatting on the Intern