2021高中英语 Unit 3 Computers Period 2课件 新人教必修2.ppt

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1、Unit 3 Computers2 文本研读课（同课异构）PeriodReading Look at these pictures.Discuss what they have in common.Predict what it is going to be about.DisscussionWhats next?Pre-reading questions1.What have computers changed our life?2.What changes will they bring to us in the future?Task 1 SkimmingTask 1 Skimming1

2、.Who is the speaker in this story?A computer.2.Write down three sentences from the story to support your idea.1)I was built as an Analytical machine by Charles Babbage.2)My real father,Alan Turing,3)I was always lonely standing there by myself,until in early 1960s they gave me a family connected by

3、a network.Task 2 Fast reading1.Where were you in 1642?In France.2.What happened to you after nearly two hundred years?I was built as an Analytical Machine by Babbage.3.What were you called in 1936?A universal machine.4.What happened to you in the 1970s?I have been used in offices and homes.16421822T

4、he analytical machine was made by Charles Babbage.1936The computer began as a calculating machineThe computer grew rapidly both in size and in brainpower.Task 3 Careful reading1940s The first family of computers was connected to each other.1970s nowComputers had grown as large as a room.1960sCompute

5、rs were used in offices and homes.Computers connect people all over the world together.DevelopmentEarly daysNameFunctionPoorStrongA _ machineSimplify difficult sumsAn _ machineThink logically and produce an answer quicklyA _ machineSolve difficult _calculatinganalytical universal mathematical proble

6、msDevelopmentNetwork times_ stored inTubesLargeSmall_Small chips _Narrow WideFinance_RobotsMobile phones_Space rocketsMedical operations MemoryTransistorsApplicationsCommunicationTrade1completely2complete change3to make things easier4to find the answer using numbers5can be moved easily from place to

7、 place 6to work out the answer to a problemtotallyrevolutionsimplifycalculatemobilesolveTask 4 Fill in the blanks.7to travel around an area to find out about it8completely9anyway10activity of managing moneyexploretotallyanyhowfinanceThe history of computersthe second generationthe second generation

8、(1956-1963)(1956-1963)the third generation (1964-1971)the fourth generation (1971-)The first generationThe first generation (1945-1956)(1945-1956)Task 5 QUESTION-ANSWER COMPETITION 1.What is PC?Speak the name on the whole.It means:personal computer.2.What is IT?Information Technology.3.What is CD-RO

9、M?Compact disc read-only memory.4.What is PDA?Personal digital assistant.5.What is W.W.W?World wide web.6.科学技术。科学技术。Science and technology.7.人工智能。人工智能。Artificial intelligence.8.笔记本电脑。笔记本电脑。Notebook computer.9.Who was the first person to devise the first computer?Charles Babbage invented an Analytical machine in 1822.10.Who was the computers real father?Alan Turing.Homework模仿本节阅读材料，按照时间的发展顺序，用第一人称写一篇介绍事物或人的变化的文章（可以写植物，宠物也可以写自己或朋友）适当运用文章中出现的短语：字数120左右Phrases suggested:when xx was young，over time，at that time，by the time，from then on 等，等，