牛津译林版九年级下册英语-Unit-4-Life-on-Mars-Welcome-to-the-unit-教学课件-(共29张).ppt

can provide energy power pack A shelter to prevent wind and rain tent Practice Time Finish Ex.A on P.51 Are these things all necessary for life on Mars? Daniel is talking to Amy about living on Mars. What would it be like? Work in pairs and discuss with your partner. Use the conversation below as a model. 1. Why do they need to wear special boots on Mars? 2. What else do they need to live on Mars? 3. Why do they have to eat dried food on Mars? 4. Is there any pollution on Mars? Because there’s less gravity on Mars. 2. We might need sleeping bag too. 3. Because there is no fruit or vegetables. 4. No. there isnt. Are they sure about all these? How do you know? Discussion Whould you like to live on Mars? Why or why not? Advantages Disadvantages Living on Mars larger space ... ... bad for health ... ... 9下 Unit 4 Life on Mars Welcome to the unit Do you know this planet (行星)? It’s Earth, our home. Earth is covered with water, so it looks blue. Mars What else do you know about Mars? It looks red. So it is also called the Red Planet. The surface of Mars The eight planets in the solar system (太阳系) are Mercury (水星), Venus (金星), Earth, Mars, Jupiter (木星), Saturn (土星), Uranus (天王星), Neptune (海王星). (T/F) Facts about Mars, True or False? 1111 Solar System Where is Mars? There are rivers and lakes on Mars at present. (T/F) Facts about Mars, True or False? 2013年12月公布的探测资料表明，火星上存在已干涸远古湖泊，或有生命出现证据。 The gravity (重力) on Mars is much lower than that on Earth. (T/F) Facts about Mars, True or False? u.n.?(force): the?force?that causes things to drop?to the ground Mars has two moons (卫星): Phobos and Deimos. (T/F) Facts about Mars, True or False? 火星有两个天然卫星：火卫一和火卫二，形状不规则，可能是捕获的小行星。 The atmosphere (大气) of Mars is 95 per cent oxygen (氧气). (T/F) Facts about Mars, True or False? 火星基本上是沙漠行星，地表沙丘、砾石遍布没有稳定的液态水体。二氧化碳为主的大气既稀薄又寒冷，沙尘悬浮其中，每年常有尘暴发生。 Humans have already visited Mars. (T/F) Facts about Mars, True or False? The surface of Mars is more similar to the surface of Earth than an