江西省横峰中学book 8 unit 3 reading 课件.ppt

Problem 1: The ripe apples on your apple tree are too high for you to reach. What can you invent to pick the apples in comfort? Problem 2: You need to make a house but you only have strings, glue, fishing nets and many plastic bottles. How can you solve it? Problem 3: You want to catch fish but not hurt them when you do so. Design a fishing rod that will solve this problem. Learn the language points in reading text; Report your ideas in written. 英语学习辅导报 出品 英语学习辅导报 出品 英语学习辅导报 出品 英语学习辅导报 出品 英语学习辅导报 出品 英语学习辅导报 出品 英语学习辅导报 出品 英语学习辅导报 出品 英语学习辅导报 出品 英语学习辅导报 出品 英语学习辅导报 出品 New words: discovery amphibious Stephenson DNA inventor invention patent So, what’s it? An invention? It is… It is? An invention? DNA In pairs discuss which of the following pictures show inventions. Does any of them show discoveries? An amphibious car(2003) This is the first car that can travel safely on water and on land. When moving on water, the wheels of the car turn sideways and move into the body. The underneath of the car is strong enough to sail as a boat. It is a prototype and is not yet being produced for sale. This is an interesting modern invention. Stephenson’s “Rocket” (1781-1848) George Stephenson was one of the first men to design engines for the railways which were new at that time. One of the first tracks to be laid was between Stockton and Darlington. Stephenson was one of the first railway engineers and in 1825 he drove the first train along the line. The structure of DNA This was a discovery of Francis Crick and James Watson and published in 1953. These two scientists were the first to show that our genes consist of two spirals of DNA (called the double-helix). This work led directly to the human genome project in 2003, which discovered the Structure of DNA. 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 list and w