Unit 5 Power of Ideas Section A 3a-3d 课件 2026-2027学年人教版英语九年级上册

Unit 5 Power of Ideas Section A What changes can inventions bring to our lives? (3a-3d) What do you think is the most useful invention in your life? Look and share 1. Do you know who the man in the picture is? He is Guglielmo Marconi. 2. Do you know this machine? What is it? The radio 3. What do people use it for? It was invented to receive radio messages from far away. 古列尔莫•马科尼 the earliest wireless telegraph • Name: Guglielmo Marconi (古列尔莫•马科尼) • Nationality: Italy • Lifespan: 25 April 1874 – 20 July 1937 • Title: Inventor, electrical engineer, known as “the father of radio communication” • Won the Nobel Prize in Physics (1909) Basic Information /ɡʊˈdʒelməʊ mɑːˈkəʊni/ Today, we’re going to focus on one that changed how the world communicates forever: the radio. Read the conversation. What does Peter think is the most useful invention of all time? Fu Xing: What do you think is the most useful invention of all time, Peter? Peter: It has to be the radio. Fu Xing: The radio? Why? Peter: Before the radio was invented, information travelled very slowly. The world was made much smaller by the radio. Suddenly, news could be spread around the world in seconds. Fu Xing: Right. Who was the inventor? Peter: An Italian inventor called Guglielmo Marconi. He developed the idea in the 1890s. In 1901, a radio message was sent across the Atlantic Ocean for the first time. Fu Xing: Wow! That was quite a distance at that time. Peter: Yeah. And because of the radio, some other important inventions were developed as well. Fu Xing: Like the television? Peter: That’s right. It also had a big effect on music. The radio made it much easier for people to enjoy music from artists around the world. 3a What does “radio” refer to here? VS What was it like before the radio was invented? Fu Xing: What do you think is the most useful invention of all time, Peter? Peter: It has to be the radio. Fu Xing: The radio? Why? Peter: Before the radio was invented, information travelled very slowly. The world was made much smaller by the radio. Suddenly, news could be spread around the world in seconds. Fu Xing: Right. Who was the inventor? Peter: An Italian inventor called Guglielmo Marconi. He developed the idea in the 1890s. In 1901, a radio message was sent across the Atlantic Ocean for the first time. Fu Xing: Wow! That was quite a distance at that time. Peter: Yeah. And because of the radio, some other important inventions were developed as well. Fu Xing: Like the television? Peter: That’s right. It also had a big effect on music. The radio made it much easier for people to enjoy music from artists around the world. 3a Information travelled very slowly. The world felt “big” and disconnected. Read the conversation and complete the chart. Who was the inventor? ________________________________________________ When was it invented? ________________________________________________ How did it change the world? • _______________________________________________ • _______________________________________________ • _______________________________________________ _______________________________________________ An Italian inventor called Guglielmo Marconi. In the 1890s. It made the world much smaller. Invention: the radio 3b It had a big effect on music, making it much easier for people to enjoy music from artists around the world. It led to other important inventions, like the television. signal words for more information 8 Think and share. 1. Many new inventions like smartphones appear nowadays. Do you agree that the radio is still a great invention? Please give your reasons.  Yes, I agree. Although smartphones are popular now, the radio is still helpful. It brings us news and music. Besides, it works well without the Internet, so people can get information in some special situations.  I partly agree. The radio was great in the past. But today smartphones can offer more kinds of news and music. So it is less important for most young people.  I don’t agree. Smartphones can do almost all the work that the radio used to do. So the radio is not so necessary for us any more. Think and share. 2. Many inventions make our life easier, but some also bring troubles. Can you name one invention that has both good and bad influences on humans? The smartphone is such an invention. It was invented to connect people easily. On one hand, we can chat, study and shop online. On the other hand, many students spend too much time on it, and their eyesight and study are badly influenced. Choose another invention that you think is the most important and make a mind map about it. Then describe it to a partner. 3d Invention: Who was the inventor? ______________________________________ When was it invented? ______________________________________ How did it change the world? • _____________________________________ • _____________________________________ • _____________________________________ 11 Fu Xing: What do you think is the most useful invention of all time, Peter? Peter: It has to be the radio. Fu Xing: The radio? Why? Peter: Before the radio was invented, information travelled very slowly. The world was made much smaller by the radio. Suddenly, news could be spread around the world in seconds. Fu Xing: Right. Who was the inventor? Peter: An Italian inventor called Guglielmo Marconi. He developed the idea in the 1890s. In 1901, a radio message was sent across the Atlantic Ocean for the first time. Fu Xing: Wow! That was quite a distance at that time. Peter: Yeah. And because of the radio, some other important inventions were developed as well. Fu Xing: Like the television? Peter: That’s right. It also had a big effect on music. The radio made it much easier for people to enjoy music from artists around the world. 3c Listen to the conversation. Pay attention to how the key information is stressed. 谢谢 Other 71208.93 $