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单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,Unit 3 Computers,Warming up,Talking and Listening,Do you know them?,keyboard,mouse,floppy disc,USB flash disc,CD/DVD/VCD,CD/DVD-ROM,monitor,hard disc,chips,1,2,4,3,5,6,1.monitor 2.screen 3.CD-ROM,4.mouse 5.keyboard 6.hard disk,Label each part,abacus,huge computer,calculator,PC,(Personal computer),laptop,PDA,(personal digital assistant),robot,Whats next?,What do they tell you about the development of computers?,1.What do they have in common?,I think that,In my opinion,I believe that,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.,Discussion One,Do you know in what ways computers are used today?Work out a list and compare it with your partner.,Discussion Two,1.use a computer for school work,2.play games on the computer,3.send emails to friends,4.download music and films,5.surf the web for fun,6.take part in chat groups,7.use the Internet to research information for school tasks,8.buy things on line,9.look at photographs on the computer,10.read news both at home and abroad,read books and magazines,in common:for or by all of a group,共同的；共有的；共用的,常常,have in common with,如：,have nothing in common,无共同之处,have little in common,几乎无共同之处,have something in common,有一些共同之处,have a lot/much in common,有许多共同之处,Language points,1)You know,Dorothy,I have one thing,in common with you,2),I have noting in common with him,so how can I get along well with him.,3),In common with many other classmates,I like playing basketball.,common knowledge/sense,常识,common people,普通人，老百姓,Reading,1.Fast reading for general ideas,1)Who is the speaker in this story?,A computer.,2)Reading to get the general idea of the type of writing and summary of WHO AM I?,Type of,writing,Main idea of,the passage,This is a piece of narrative writing.,记叙文,It tells about the birth,and development of,computer.,Topic sentence of 1,st,paragraph,Topic sentence of 2,nd,paragraph,Topic sentence of 3,rd,paragraph,I began as a calculating machine in France in 1642.,My memory improved.,Since the 1970s many new applications have been found for me.,2.Detailed reading,1)Where were you in 1642?,2)What were you called in 1936?,3)What happened to you in the 1970s?,Since the 1970s I have been used in offices and homes.,In France.,A universal machine.,1642,The“analytical machine”was made by Charles Babbage.,1936,The computer began as a calculating machine,1840s,Alan Turing wrote a book about how computer could be made to work as a“universal machine”to solve any difficult mathematical problem.,Please fill in the table,1940s,The first family of computers was connected to each other.,1970s,now,1960s,Many new applications have been found for computer.,Computers connect people all over the world together.,Computer had grown as large as a room.,Discussion,How computers have changed our lives?,Advantages VS.Disadvantages,1.At that time it was,consider,ed a,technological,revolution.,technological adj.-technology n.,technical adj.-technique n.,technology,指总的科学技术（抽象）,technique,指小的技术，技巧（具体）,Eg.Science and _,modern management _,Language points,technology,technique,2.artificial adj.,人造的，假的,artificial intelligence,人工智能,artificial flowers/pearls/smile,假花,/,假珍珠,/,假笑,3.solve vt.-solution n.,solve a problem/puzzle/mystery,the solution,to,the problem,answer the question,the answer to the question,4.fromon,从,时起,从那時起，王子与公主就幸福地生活在一起,。,From then on,the prince and princess,lived happily.,From now on,I will listen carefully in class.,5.,By the 1940s,I,had grown,as large as,a room,and I,wondered,if,I would grow,any larger,.,by,加时间，一般用完成时态,By the end of 2009,I _ for ten years.,By the time I was fifteen,I _ my dream.,as,原形,as,，和,一样,not as/so as,不如,The room is,as large as,that room.,The room is,three times as large as,that room.,The room is,twice larger than,that room.,The room is,three times the size of,that room.,可修饰比较级的词,a bit,a little,rather,much,far,a lot,a great deal,any,still,even,by far,等,注意：,quite,very,不能修饰比较级,1.That box is _ mine.,A.as heavy twice as B.twice so heavy as,C.twice as heavy as D.twice as heavier as,2.Does he get _ better?,much B.more C.very D.any,6.as time went by,I was,as time goes by=with time going by,随着时间流逝，他通过努力在英语上取得了很大进步。,As time goes by,he makes great progress in English because of his hard work.,7.as a result,结果,1),他不用功,结果考试不及格。,He didnt work hard,as a result he failed his exam.,as a result of ,的结果，由于,2),由于大雪他迟到了。,He was late as a result of the snow.,3),由于政府缩减经费的缘故，有五百人被突然解雇了。,Five hundred people were fired as a result of government spending cuts.,8.so that,如此,以致于,suchthat,eg.He is,so,old a man,that,he cant carry the box.,He is,such,an old man,that,he cant,carry the box.,They are _ beautiful flowers that we all like them.,They are _ beautiful flowers _we all like.,so.that.,结构的,so+,形容词,/,副词位于句首时，句子用倒装结构。,So,hard,does,he work,that,he seldom goes home.,There are _ many books _ we cant afford them.,There are_ many books _ we cant afford.,(many,much,few,little(,少）前只能
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