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北师大版英语九年级Unit 8 Discoveries Lesson 22 Famous Discoveries 第一课时课件

  • 课件名称:北师大版英语九年级Unit 8 Discoveries Lesson 22 Famous Discoveries 第一课时课件
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    北师大版英语九年级Unit 8 Discoveries Lesson 22 Famous Discoveries 第一课时课件
    Three discoveries DNA (Crick ^ Watson) X-rays (Wilhelm Roentgen) 1. the building block of life 2. pass on certain characteristics 3. be able to treat more disease Doctors treat broken bones easily with X-rays machines. The text is about… A lot of diseases can be cured easily with it. Antibiotics (Fleming) effect Can you answer these questions? Finish them on the worksheet. 1. What can cure a lot of diseases easily? What passed on certain characteristics from parents to children? 3. What can scientists know from the map of our DNA? 4. Who was the first to study and name X-ray? 5. What prize did the discoverer of X-ray award? Answer the following questions Antibiotics, X-rays. (DNA, maybe in the future.) 1. What can cure a lot of diseases easily? 2. What passed on certain characteristics from parents to children? 3. What can scientists know from the map of our DNA? DNA. It tells them a great deal about what get from our parents. 4. Who was the first to study and name X-ray? 5. What prize did the discoverer of X-ray award? Wilhelm Roentgen. The first-ever Nobel Prize in Physics. If Mary’s hand is cut by a knife for 3days, what will she do? If your leg gets hurt in P.E, what should you do? If you have a headache, what can you do? “Doctor, can you explain what antibiotic is for me?” asks one patient. ……. Activity 1: If you’re a doctor, Please treat! (Pair Work) Problems Which discovery do you think is the most important according to the text? Example: A: I think X-rays are the most important discovery. B: Why? A: Because with X-rays, doctors can help fix broken bones more easily. ….. Activity 2: Homework Finish Ex 1 on P99. If you live in school or travel around for more than 10 days, what will you take in your medicine bag(急救包)? Discuss with your partner, and write down on the worksheet. Name: Nicolaus Copernicus 哥白尼 Achievement: heliocentric theory 日心说 1473-1543 Poland Name: Galileo 伽利略 Achievement: Principle of inertia 惯性原理 1564-1642 Italy Newton 牛顿 law of gravitation 万有引力定律 1643—1727 Britain Michael Faraday 迈克尔·法拉第 Electromagnetic induction 电磁感应 1791~1867 Britain William Harvery 威廉·哈维 Blood circulation 血液循环 1578-1657 Britain Robert Koch 罗伯特·科赫 Pathogenic bacteria (病原细菌) 1843----1910 Germany Wilhelm Konrad Rontgen 威廉·康拉德.伦琴 X-rays (X射线) 1845---1923 Germany * * Getting ready ^ Reading Lesson 22 王东梅 顺义八中 Lead-in Have you seen this picture? What’s this? NASA on 23rd, July announced the discovery of Kepler-452b, the most Earth-like planet ever found. Located 1,400 light-years from our planet, NASA called it “Earth 2.0”, because it’s the first planet discovered in the habitable zone of a G star similar to our sun. 7月23日,美国国家航空航天局(简称为NASA)宣布发现开普勒-452b,是迄今为止与地球最为相近的行星。该行星距离地球1400光年,NASA将其命名为“地球2.0”,因为它是第一颗人类在宜居带里与太阳相似的恒星附近发现的行星。 1.与太阳相似的恒星被发现 这颗系外行星编号Kepler 452b,其直径约为地球的1.6倍,与恒星之间的距离与日-地距离相近。恒星Kepler 452距离地球大约430秒差距(约合1400光年),位于天鹅座。   天文学家称,这是至今为止发现的最接近地球的“孪生星球”,跟地球的相似指数为0.98,并且有可能拥有大气层和流动水。   NASA说这个星球上可能有活火山,有存在生命的可能性,行星应该有60亿年历史,地球为45亿年。 An international team of scientists said they have discovered the farthest galaxy ever measured in the universe. By using a powerful instrument called MOSFIRE on the Keck I telescope at the Keck Observatory in Hawaii, the team thought that the galaxy, EGS-zs8-1, formed more than 13 billion years ago at a time when the universe was only five percent of its present age. 科学家使用位于夏威夷的凯克天文台的望远镜发现了新星系,并将这个星系命名为EGS-zs8-1。它是迄今发现的最遥远星系,打破了此前的观测纪录。 2.宇宙中最遥远星系被发现 What are the people doing in the pictures? What do you think they are trying to discover? What are the people doing in the following pictures? What do you think they are trying to discover? Example: I think the person in Photo A is observing the stars. Maybe he is trying to discover a new star. Key Words: Discoveries chemistry, do experiments, electricity, health, lab, machine, observe, physics, research, space, technology Listen and practice. 1.Do you know any other scientific discoveries? 2.Can you name some famous ones? 3. Among these discoveries, which do you think are the most important ones? Look at your worksheet after class. PPT(26—32) Do you know any of them? What’s their major achievements? Tu Youyou has become the first Chinese woman to win a Nobel Prize(2015), for her work in helping to create an anti-malaria (['' nti m l''e ri ] 抗疟疾的 ) medicine. 屠呦呦 (1930--)药学家 抗疟疾:青蒿素和双氢青蒿素 and match 2. Many children died very young because of different diseases. Now it can be cured(治愈) easily with it. Look ! Guess 1. It’s a discovery in physics(身体). It can go right through some things like skin(皮肤) and wood but stop by bones or metal. 3. It’s the building block of life and we know a great deal about what we get from our parents from it. A B C 1st reading: Read and find the name
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