人教版高二英语选修8-Unit-3-Inventors-and-inventions--全单元教案.doc

。Unit 3 Inventors and inventionsThe First Period Warming up一Aims:1. Teaching aims 教学目标：Help the students learn how to talk about inventions and discoveries.重点词汇和短语discovery, application, evaluate, presentation, alternative, messenger, get together, make a case for, add up2. Ability aims能力目标Enable the students to talk about information and different.二Contents Step I Ask the students to talk about the pictures with the teachers help, and then discuss the first two questions.what is a discovery? Whats the difference between a discovery and an invention? Step II Work in pairs and talk about the three different things, telling them apart and giving reasons.1. Which these pictures show inventions? Does any of them show discoveries?2. Work out two rules that will help you decide what is a discovery and what is an invention?Step III Go on with some other questions of this part. What modern inventions do you know? Describe them to your partner and how useful they are in life today.Step IV Work in groups of four to discuss the question: Suppose you are working for a mobile company. It is your job to suggest new ways of developing a mobile. In pairs discuss some new applications of a mobile. Make a list of the ones you like and that seem the most useful. Choose one you both like and think will be popular with other people. The Second Period Reading一Aims:1. Teaching aims 教学目标How s to describe the problem of the snakes and what has been done by the writer to solve the problem.重点词汇和短语Patent, distinguish, product, power, perfume, cube, abrupt, abruptly, convenient, expectation, monitor, passive, criterion, valid, application, file, rod, call up, now and then, set about, in case2. Ability aims能力目标Enable the students to describe the problem of the snakes and what has been done by the writer to solve the problem. Make them realize it takes steps to catch the snakes and its not easy to get a patent.二Contents:Step I Ask the Ss to guess about the content of the passage from the title.Then ask the Ss to judge the right order of stages of inventions.Step II Get the Ss to comprehend the passage carefully and accurately, and then divide the text into several parts and work out the main idea for each paragraph.Part (Para.1) the discovery of the problem of snakesPart (Para.2-3) the research on the approaches to solve the problemPart (Para.4-6) the attempts to catch the snakesPart (Para.7-8) the requirements of getting a patent.Step III Ask Ss to go over the whole text again and analyze the text in details.Discuss the following questions:1.What are the writing techniques of this text?2.Whats the main idea of the text?3.What should we learn from this text?4.What the writing purpose of the writer?Step IV Comprehending: Finish the exercise1, 2, 3.The Third Period Language Points一Aims:Talk about inventors and inventionsLearn about the stages used in scientific research二Contents:Step I words and phrase1. Do you know the stages every inventor must go through before they can have their invention approved?go through(1)经历(2)通过,成功,成交(3)审阅,检查(4)翻找,查看(5)穿过,通过Most families went through a lot in the war.2. I was researching into the habits of snakes so I could trap them in the easiest way. do research on /into /in. 从事, 进行, 做研究 They are carrying out a research into the causes of cancer. They are doing research into electricity.3. when I called up my mother in the countryside on the phone.call up 打电话，使.回忆起 Ill call you up tonight (call sb. /ring sb. up ) The old photo calls up memories of my childhood. (recall sth.) 4. Snakes come near the house now and then.now and then 有时, 偶尔 I see them now and then, but not often. 5. Here was a chance for me to distinguish myself by inventing something that would catch snakes but not harm them. distinguish oneself 显扬自己, 使自己扬名6. But there only seemed to be powders designed to kill snakes.powder: n. 粉，粉末；药粉；火药grain sth. into powder 把磨成粉7. I set about researching the habits of snakes so I could tap them in the easiest way. set about 开始, 着手 The sooner we set about it , the sooner well finish. 8. This was in the expectation that the snakes would bite again.expectation: n. 预料，期待Against all expectation, she won first prize.9. abruptly adv. A man with an abrupt manner is not welcome here.10. convenient Come and see me whenever it is convenient to you. If it is quite convenient to you, Ill visit you next Tuesday. 11.If it passes that test, your application for a patent will be published 18 months from the date you apply.application: n. 应用，运用；申请，请求；努力，专注The invention had no practical application.12. bear (bore, borne) 忍受; 带有, 具有 I couldnt bear to listen any longer, so I left the room. bear doing 表示习惯性动作 bear to do sth. 表示一次具体动作This letter bears french stamp.13. mess: n.杂乱,脏东西 v.无所事事, 混日子,胡闹There is a lot of mess to clear up.14. but monitored carefully, the snakes proved to be no trouble and all went according to plan.monitor: vt.监听，收听：监视15. I collected the passive snakes and the next day we released them all back into the wild.passive: adj. 被动的，消极的；不抵抗的；不活跃的He played a passive role in the marriage.Step II sentences1. The first thing I tried to do was to see if there were products that might help me, but there only seemed to be powders designed to kill snakes. P202. Between the outside and inside walls of the bowl there is some jelly, which freezes hard when cooled. P203. The criteria are so strict that it is difficult for new ideas to be accepted unless they are truly novel. P21The Forth period Learning about language and Using language一Aims 1. Teaching aims 教学目标Help the Ss learn how the famous inventor Alexander Graham Bell invented telephones重点词汇和短语forehead, dot, tap, wire, straw, current, importance, helicopter, triangle, stable, practical, beaten track, dive into, set out (to do), in truth重点句子He found that by pressing his lips against He designed a machine that Although he will always be known for , he was He realized that by understanding how 2. Ability aims能力目标Enable the Ss to learn about the famous inventor Alexander Graham Bell and his inventions.二Contents Step I Check the homework. Get the Ss to finish the exercises on page 23-24.Step II Ask the Ss to discuss the following questions:1.What do you know about the inventor?2.How useful is his invention to human