高一英语Unit3 Computers 新课标 人教版 必修二 课件VIP免费

DVD-ROMprintermonitorscreenmodemscannerkeyboardhard disc1 A monitor is2 The screen is3 A keyboard is4 A mouse is5 A CD-ROM is6 A hard disk is (a) the part of a computer that stores information.(b) the part of the computer that you type on.(c) the part of the computer that looks like a television(d) something you use to click on things (files, etc.).(e) the part of the monitor that you look at.(f) a separate disk that contains lots of information.Match the words with their meanings.Warming UpA notebook computerAn abacusA huge computerA calculatorA PCDiscussion: (What do they have in common?) I think that… In my opinion… I believe that… What’ s your reason? Why do you think so?1.They can be used for calculating. 2.They can deal with maths problems.3.They are our friends.4.They are useful and helpful.5. … Listen to the tape. Find the three robots from the following pictures and number them.123ABCD• What do you know about computer?• How have computers changed our lives?Pre-readingFast-reading Read the passage as fast as possible and find out the answers to these questions. 1.who was the first person to devise the earliest computer? 2. What did he make and what did it do? 3. who was the next important person to design computers?Read the passage again and get the general idea of this passage. The history and development of computers, also about the relationship between computers and humansExplanation1.I know this sounds very simple, but at that time it was a technological revolution!“this” refers to the thing that “I followed instructions from cards with holes”-------Now, we can see, it is a very easy, simple thing. But at that time, exactly in 1822, it was a very big, important thing or a technological revolution.2. My real father was Alan Turing, who in 1936 wrote a book to describe how computers could be made of work, and built a universal machine” to solve any mathematical problem.Attributive Clause( 定语从句 )“And” 起什么作用?Comprehending1642:________________________________;The Analytical Machine was made by Charles Babbage.1936:________________________________;1960s:_______________________________;The first family of computers was connected to each other.1970:_______________________________;Now:_______________________________.The computer began as a calculating machineAlan Turing wrote a book to describe how computers could be made to work.Computers had new transistors and became smaller.Computers were brought into people’s houseConnect people all over the world together.Homework 1. Recite the key sentences in the text. 2. Prepare for Learning about language.