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Wonders,in,Science and Technology,Book 5 Unit 2,Electricity Radio / TV Phone Plane / satellite Computer / Internet Genetic engineering Cloning ,Can you name some wonders in science and technology?,Space exploration technology,On July 20th 1969, Neil Armstrong became the first man to step on the moon. As Neil Armstrong placed his feet on the Lunar surface, he said the historic words, “Thats one small step for man, one giant leap for mankind”.,Neil Armstrong,Armstrong,Who are the people in the following picture? How much do you know about them?,the invention of the Internet,What are the people doing? What is the wonder in the picture named?,They are using computers: they can be doing exercises; they might also be playing games, chatting or shopping online.,What makes it possible for us to enjoy live television broadcasts of important events around the world?,The TV shows that some football players are having a football match. The match is being broadcast live to people all over the world.,LIVE,What does the TV show?,What does the word “LIVE” mean?,“LIVE” means broadcasting and showing something while it is going on or happening. Thanks to communications satellites, people can now enjoy live television broadcasts of important events all around the world.,communications satellites,Guess the wonder:,It was invented at the end of the 19th century. Its inventor was a German. It is widely applied, especially in the hospital. It is often used to check whether ones bone is broken or not.,X-ray,The Discovery of X-rays,Text,Do you know who discovered X-rays?,Wilhelm Konrad Roentgen,Para AB:,Why was Mrs. Roentgen concerned about his husbands health? To ease his wifes concerns, where did Roentgen take his wife? What did Roentgen do then? Why was Mrs. Roentgen astonished when she saw the developed photo in the lab?,What date was the birth of the era of X-rays? When did the world learn of the birth of X-rays? Why was Roentgen the first to receive the Nobel Prize for physics? Why was Roentgens discovery named X-rays instead of Roentgen Rays?,Para CD:,Where did Roentgen go on experimenting with the X-rays after receiving many honors and prizes? How did Roentgen find a new use for X-rays? What are some of the applications of X-rays? What has been done to avoid possible dangers caused by the rays? Give an example.,Para EG:,A Proverb,Pain makes man think. Thought makes man wise. Wisdom makes life endurable. John Patrick,The end of the lead-in,同学们,来学校和回家的路上要注意安全,同学们,来学校和回家的路上要注意安全,
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