单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,Unit 3,Unit 3,1,Unit 3 Inventors and inventions,Unit 3,2,高中英语选修八Unit3-Reading课件,3,Discuss in pairs which pictures show inventions and which show discoveries.,An amphibious car,Stephensons“Rocket”,Discuss in pairs which picture,4,DNA,Work out the rules that will help you decide what a discovery is and what an invention is.,DNAWork out the rules that wil,5,1)A discovery is,A discovery merely makes known something that already exist in nature,such as the discovery on the New Continent by Columbia.,2)An invention is,An invention is,something that created by human being,such as the lighting rod.,1)A discovery is 2)An invent,6,What are the important inventions of the 20th century?Which do you think is the most important one?,Enjoy the movies,What are the important inventi,7,Thomas Edison invented the electric bulb.,Thomas Edison invented the ele,8,Did Edison,invent electricity?Can electricity be invented?Is electricity an invention or discovery?Why?,Did Edison invent electricity?,9,Give your examples of each category and fill in the blanks.Work out the connections between them.,Give your examples of each cat,10,Discoveries,Inventions,1.Electricity,1.Systems of delivering electrical light and heating to homes and offices,2.Household machines for washing,ironing,keeping food cold,etc.,3.Computers,telephones,television,etc.,DiscoveriesInventions1.Electr,11,Discoveries,Inventions,2.The movement of air,1.Airplane jet engines,2.Air balloons,etc,Machines to help people with serious disease(like kidney failure),3.The circulation of the blood,DiscoveriesInventions2.The mo,12,Discoveries,Inventions,4.X-rays,Body scanners to see whether you are ill,2.Machines to treat illnesses(like cancer),Discoveries often lead to inventions.,DiscoveriesInventions4.X-rays,13,In pairs discuss any modern inventions you know.Describe them to your partner and explain how they changed peoples lives.,In pairs discuss any modern,14,television 1923,colour television 1940,television 1923 colour televis,15,photocopier 1937,air conditioner 1902,photocopier 1937air conditione,16,electronic digital computer 1946,electronic digital computer 19,17,Atomic bomb 1945,Atomic bomb 1945,18,Credit cards 1950,Credit cards 1950,19,Penicillin 1928,Penicillin 1928,20,Do you know the stages every inventor must go through before they can have their invention approved?Inventing is a scientific activity and so follows similar stages to those used in scientific research.Look at the following list and work out a suitable order.,Pre-reading,Do you know the stages every i,21,Applying for a,patent,2.,Finding a problem,3.,Doing research,4.,Testing the solution,5.,Thinking of a creative solution,6.,Deciding on the invention,Applying for a patent,22,The problem of the snakes,The problem of the snakes,23,The text is mainly about the authors experience in helping her mother get rid of the _ and applying for the _ for her invention.,snakes,patent,Read the text quickly and complete its main idea.,The text is mainly about the a,24,Divide the passage into several parts and find out the main idea for each paragraph.,Part 1(para.1),the discovery of the problem of the snakes,Part 2(para.2),Doing some research about the habits of snakes,Divide the passage into severa,25,Part 3(para.3),Deciding on the solution,Part 4(para.4-6),the attempts to catch the snakes,Part 5(para.7-8),the requirements of getting a patent,Part 3(para.3)Deciding on the,26,Read the text carefully and fill in,the blanks.,Finding a problem,Snakes came near my mothers house now and then and she wanted me to get rid of them without _ them.,Doing research,I set out to research the _ of snakes to find the easiest way to trap them.,harming,habits,Read the text carefully and fi,27,Thinking of a creative solution,Three possible approaches:,removing the snakes _,attracting the snakes into a _ using male or female perfume or food,_ the snakes so that they would become sleepy and could be easily caught,I decided to use the _ approach.,habitat,trap,cooling,last/third,Three possible approaches:I de,28,Testing the solution,Three attempts:,putting the frozen bowl over the snakes habitat early in the morning,putting the frozen bowl over the snakes habitat _,putting the frozen bowl over the snakes habitat in the evening and carrying a small _ to collect them the next morning,The third attempt was a success.,in the evening,net,Three attempts:The third atte,29,Applying for a,_,The patent office makes a search to check that your product really is _ from everyone elses.,Patent examiners examine whether your claim is _ or not.,Your application for a patent will be published _ months from the date you apply if your claim passes all the tests.,patent,different,valid,18,The patent office makes a se,30,1.How did the writer catch the snakes?,A.using something the snakes were,interested to attract them into a trap.,B.taking their habitat to another place.,C.placing the snakes at a low temperature for