高中英语_Unit3《Inventors_and_inventions》课件-Warm_up_pre-reading_and_reading_新人教版选修8.ppt

ks5u精品课件 * Read the words and expressions three times a word 1). patent n.专利证书；专利权；v.获得专利权 2). distinguish vt.vi. 显示……的差别；使……有所不同 3). abrupt adj. 突然的；意外的 4). convenient adj. 便利的；方便的；就近的 5). expectation n. 预料；期待；期望 6).merciful adj.宽大的；仁慈的；慈悲的 7).product n.产品 8).seize vt.抓住；捉住；夺 9）.file n.文件；文件夹 vt.提交 10).now and then 偶尔；有时 11）set about 开始；着手 Unit 3 Inventors and inventions Warming up: In groups, discuss the inventions you know and then make a list. Do you know what these inventions are and when they happened? Telephone 1876 television 1923 colour television 1940 photocopier 1937 air conditioner 1902 electronic digital computer 1942 What is an invention? An Invention is something that is created by a human being. Inventing is a scientific activity. What is a discovery? A discovery merely makes known something that already existed in nature. Look at the pictures below and discuss in pairs which pictures show inventions and which show discoveries. An amphibious car(2003) The structure of DNA Do you know the stages every inventor must go through before they can have their invention approved? Look at the list and work out a suitable order. Applying for a patent Finding a problem Doing research Testing the solution Thinking of a creative solution Deciding on the invention The suitable order: Finding a problem Doing research Thinking of a creative solution Testing the solution Deciding on the invention Applying for a patent Reading The problem of the snakes Listen to the whole passage and get the main idea: The text tells us _______________________ and shows us _____________________ and applying for ________. the problem of the snakes the procedures of catching them a patent Have a discussion and show your answers on the blackboard Divide the text into four parts and work out the main idea for each paragraph. Part I Part II Part III Part IV (Para.1) The discovery of the problem of the snakes. (Paras2