Unit 3 Inventors and inventions P5 Listening exercise课件-优质公开课-人教选修8精品
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高中英语Unit 3 Inventors and Inventions人教版第八册Teaching aims:1.TopicTalking about inventors and inventionseful words and expressions:Discovery, patent, distinguish, product, power, perfume, cube, abrupt, abruptly, convenient, expectation, monitor, passive, criterion, valid, application, file, committee, bear, jam, mess, forehead, dot, tap, wire, straw, current, importance, helicopter, triangle, stable, practical, refrigerator, court, version.Expressions: call up, now and then, set about, in case, traffic jam, beaten track, dive into, set out, in truth, hang on, out of order, get through, ring back, ring off. 3. Functional items:making a telephone callHold the line, please.Hang on, please.Just a moment, please.I’m sorry, but this phone is out of order.I can’t get through. Sorry.He isn’t him right now.Can I ring back later?I’ll ring him up again.I must ring off now because…4. GrammarRevise the Past Participle.1.The Titanic is a sunk ship in the ocean.2.The book intended as a surprise to him was lost in the mail.3.He seems moved to tears by the film.4.If bitten by a snake, you should call for help.5.We left them caught in the storm.Teaching proceduresPeriod 1 ReadingStep 1. Warming upA. talk about inventions and discoveries.Ask the students to talk about the pictures with the teacher’s help, and then discuss the questions:What’s a discovery?What’s an invention?What’s the difference between a discovery and an invention?Which of these pictures show inventions?Guide the students to find out answers to the previous questions;An invention is something that is created by a human being, such as the lightning rod.A discovery merely makes known something that already existed in nature, such as the discovery on the New Continent by Columbia.B. the suitable order of the steps every inventor must go through before they can have their inventions approved:1. finding a problem2. doing research3. thinking of a creative solution4. testing the solution5. applying for a patent6. deciding on the inventionStep 2. ReadingTask 1: Ss scan the passage and try to get the main idea of each part:Suggested answers:Part 1 (para1): the discovery of the problem of the snakesPart 2 (2-3): the research on the approaches to solve the problemPart 3 (4-6): the attempts to catch the snakesPart 4 (7-8): the requirements of getting a patent.Task 2: Ss read the passage again and then finish Ex 1-3 on page 21-22.Period nguage learningStep 1. RevisionSs retell the text.Step 2. Language pointsExplain the following sentences:1.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.我设法做的第一件事是看看是否有能帮我忙的产品,但是好象只有一些用来捕杀蛇的粉末。