Unit 3 The world of Science Listening and Speaking课件-2022-2023学年高中英语外研版必修第三册

Unit 3The world of scienceTo know something about Alzheimer’s diseaseTo learn some listening skills to get useful informationTo tell a story about an inventionView a video to find out what is Alzheimer’s disease (AD) (阿尔茨海默病，老年痴呆症).Invention storiesAlzheimer’s disease is a brain disorder that causes problems with memory, thinking and behaviour.The majority of people with Alzheimer’s are 65 and above. It is recognised as the most common mental disease among older people, and the number of sufferers is growing. Currently, there's no cure for Alzheimer's, but scientists are researching ways to improve the quality of life for people living with the disease.If one of your close relative has the Alzheimer’s disease, what can you do to help him or her?Listen to the conversation and number the pictures in the correct order.c b d a eListen again and complete the notes.What is it?Who was it invented by?It’s___________________________________________________________.It was invented by_________________________called Kenneth. a pair of socks designed for people with Alzheimer’s diseasea student form New YorkWho inspired the invention?__________________, who has Alzheimer's.How does it work?__________________ is sent to a mobile phone like an alarm when the person with it ____________________.His grandfatherA warninggets out of bed听力文本Now talk about how the speakers describe the story behind an invention. Listen again if necessary.Learning to learnExclamatory sentences express strong emotions, such as surprise, shock, joy, emphasis and excitement. These are usually formed with what or how, and in written form usually end with an exclamation mark. Act out the conversation about the invention of the telephone.You are going to give a presentation about the invention of the telephone. As part of your research, you speak to Student B who has just read a book about it. Ask him/her questions to find out more information. Student AInformation you’d like to know:the inventor year of inventionthe inventing processthe first phone callother interesting things about the inventionWho invented..?When was… invented?How was … invented?What was the first phone call about?What other interesting things…?Useful expressionsYou've just read a book about the invention of the telephone.Student A, who is going to give a presentation on the same topic, asks you for information.Inventor: Alexander Graham BellInvention created in: 1876Student BBackground: Bell was a teacher at a school for the deaf. He tried to invent a machine to send messages over an electronic wire. This eventually led to the idea of a telephone. Later, with his assistant, he created a device to produce and receive sound waves using electrical signals. First phone call: On 10 March 1876, Bell made the first clear and complete phone call to his assistant, saying, “Mr Watson- come here-I want to see you.”Other information: Bell never had a telephone in his study, where he wanted to be alone with his thoughts and work.The telephone was invented by… in…When…he…He later… and finally…The first phone call was about…It is interesting that…Useful expressionsChoose another story of an invention you know and have a similar conversation.Do you know how were the smart phones first invented? Who invented them? Write a short passage about it. You can surf the Internet for necessary information.