4.5 Video Time课件-高中英语新教材必修第三册大单元整体教学设计+拼图式阅读（视频+课件+教案）

Book 3 Unit 4 Space Exploration Period 5:Video Time Who are we? Where are we from? What’s in space? the Earth the Moon the Sun Solar System 水星 Mercury [ˈmə:kjurɪ] 金星 Venus ['viːnəs] 地球 Earth [ə:θ] 火星 Mars [mɑːz] 木星 Jupiter ['dʒuːpɪtə] 土星 Saturn ['sætən] 天王星 Uranus ['jʊərənəs] 海王星 Neptune ['neptjuːn] orbit n. 轨道 v. 顺着轨道环绕 orbiter n. 轨道飞行器 land v. 登陆，着陆 lander n. 登陆器 rove v. 漂泊，漫游 rover n. 探测车，漫游者 1.Mars is the fourth planet from the Sun and the smallest planet in the solar system. 2.It is one of the few planets that we can see with the naked eye. 3.Like Earth, Mars has volcanoes, valleys, polar ice caps, seasons, and weather. 4. Olympus Mons, the largest volcano on Mars, is about twice as high as Mount Qomolangma. BEFORE YOU WATCH How much do you know about Mars? Read the statements below and decide whether they are true(T) or false(F). F T T F Check your answers in Before You Watch. Put the events in the correct order. ______The probe separates from the launch vehicle. ______The lander lands on the surface of Mars. ______The probe enters the Earth-Mars transfer orbit. ______Controllers on guide the probe into the orbit around Mars. ______The lander discards the protective shield and the parachute. ______The space-to-ground communications link is created. ______The orbiter and the lander separate. ______The rover transmits data back to Earth and receives orders from Earth. ______The rover begins to explore the surface of Mars. WHILE YOU WATCH 1 2 3 4 5 6 7 9 8 探测器 发射器 传输 AFTER YOU WATCH Watch the video and think about the following questions. 1. How big is Mars compared to Earth? 2. How long are the seasons on Mars? 3. What is the ice on Mars made of? It is about half of the size of Earth. Much of Mars’ ice is made from carbon dioxide. The seasons on Mars are twice as long as the seasons on Earth. AFTER YOU WATCH Work in pairs. One student acts as a space expert and the other acts as a reporter. Use what you have learnt from the video