LearningaboutLanguage (3).pptx

1、Unit 3 Computers Learning about language,1. Find the word or expression for each of the following meanings from the text.,1) complete change in ways of thinking, working, etc. 2) connected computer system 3) to make things easier 4) to find the answer using numbers,calculate,simplify,revolution,netw

2、ork,Discovering useful words and expressions,5) can be moved easily from place to place 6) to work out the answer to a problem 7) to travel around an area to find out about it 8) completely 9) anyway 10) activity of managing money,finance,anyhow,totally,explore,solve,mobile,2. Complete the passage w

3、ith the words below.,artificial technology intelligent Web applications explore reality logically,My brother was very interested in computers and enjoyed writing programs of his own. He used to download information from the Internet and made good use of it. He liked to _ the World Wide _ and,explore

4、,Web,used the Internet to communicate with computer programmers all over the world. When he went to university he studied IT (information _) and developed a special interest in _ intelligence. After developing special _ of the computer, he hopes to design an _ robot which can think _ and look like a

5、 human being, but in _ he has a long way to go.,technology,artificial,applications,intelligent,logically,reality,Grammar,The Present Perfect Passive Voice,1. The new bridge over the Yellow River has just been completed. 2. Many more buildings have been built in the past ten years.,一、现在完成时的被动语态构成： ha

6、ve/has been + 动词的过去分词 表示到现在为止已经完成的某个被动的动作。例如：,3. The dirty clothes have been washed. 4. The plan has been studied by the experts for three times. 5. The child has been taken care of by Grandma Wang all these years.,1. 主语是行为动作的承受者。如： The Temple of Zhang Fei has been rebuilt. 张飞庙已经过重建。,二、现在完成时的被动语态主要用

7、 于以下情况：,2. 说话时已完成的动作或出现的结果。 The door has been locked. 门已经被锁上了。 （我或别人现在进不去） 3. 动作或状态始于过去, 持续到现在, 并可能持续下去。如： He has been told about it for many times. 有人告诉他这事很多次了。 （可能还会有人告诉他）,4. 用在时间和条件状语从句中, 表示 将来某时已完成的动作。如： Well start as soon as the work has been finished. 工作一完成我们就立即动身。,固定搭配中的介词在被动语态中 不能省略。例如： He h

8、as thought of a way of solving the problem. =A way of solving the problem has been thought of.,三、几点注意：,2. break out/ happen/ take place/ arrive/ become/ die/ disappear etc 不及物动词没有被动语态。例如： The accident which happened yesterday surprised me.,3. 带双宾语的动词give /send/bring/ take/teach/show/ tell/ make/ sin

9、g/ write/ sell/buy/ ask/ pay/ borrow/ lend/ hand/ offer/provide/ past/get/promise 等变被动语态有两种方法： I have given him the book. =He has been given the book. =The book has been given to him.,He has offered us the most comfortable service. =The most comfortable service has been offered to us by him. =We hav

10、e been offered the most comfortable service by him.,1. I got caught in the rain and my suit .（北京2007） A. has ruined B. had ruined C. has been ruined D. had been ruined,C,高考链接,2. Professor James will give us a lecture on the Western culture, but when and where _ yet. （浙江2007） A. hasnt been decided B.

11、 havent decided C. isnt being decided D. arent decided,A,3. If Newton lived today, he would be surprised by what in science and technology.（天津2007） A. had discovered B. had been discovered C. has discovered D. has been discovered,D,4. Cathy is taking notes of the grammatical rules in class at Sunshi

12、ne School, where she _ English for a year. （湖南2007） A. studies B. studied C. is studying D. has been studying,D,5. With the help of high technology, more and more new substances in the past years. （上海2007） A. discovered B. have discovered C. had been discovered D. have been discovered,D,6. When you get the paper back, pay