(
课件网) Unit 4 SPACE EXPLORATION Reading & Thinking SPACE: THE FINAL FRONTIER n.边境;国界; 边远地区 标题源于美国系列连续剧《星际迷航》 (Star Trek) 每一集最初的引语，是剧中人物 James Kirk舰长的一段独白。 1.How many planets are there in the solar system There are eight. Elon Musk’s Plan to Colonize Mars Because Earth-Mars synchronization (轨道同步) happens roughly _____, there is an opportunity to fly to Mars. SpaceX plans to send_____cargo ships(货运飞船) to Mars in 2022. If that proves successful, in 2024, they want to fly _____ ships, two of which would be crewed, and the other two will be cargo ships. every two years two four With six ships, they would have plenty of loaded mass to construct the propellant depot (推进器能源库)， which would consist of large array of (大批) of solar pannels. Then they have to _____ (采矿)and _____ (净化)water and draw the _____ out of the atmosphere， and then create and store deep cryo(冷沉淀) CH4 and O2. mine refine CO2 Then they will build up the base with one ship, then multiple ships, then start building up the city. gravity frontier vehicle universe transmit data satellite launch orbit astronaut n. 重力；引力 n. 边境；国界；边远地区 n. 交通工具；车辆 n. 宇宙；天地万物 n. 资料，数据 n. 人造卫星；卫星 vt. & n. 发射；发起；上市 n. 轨道，势力范围 vt. & vi. 沿/环绕轨道运行 n.宇航员 vt. & vi. 传输；发送 Words Aid the USSR Sputnik 1 Voyager 1 spacecraft Challenger Jade Rabbit dock signal the International Space Station n.苏联 n. 旅伴一号 n. 旅行者一号 n. 航天器；宇宙飞船 n. 挑战者号 n. 玉兔 vt.&vi (两架航天器)对接;使……进港 n. 码头；船坞 vt. & vi. 标志着；标明；发信号 n. 信号；标志 国际空间站 Main idea of each paragraph: Para1:People are curious about space. Para 5. The future of space exploration. Para 2. Achievements of American and Soviet. Para 3. Space exploration continues in spite of great risks. Para 4. China’s space programme. A. Although scientists try to make sure nothing goes wrong, accidents can still happen. B. Space exploration has come a long way, and we now hope to discover other planets that are suitable enough to support life. C. The future of space exploration remains bright. D. After many experiments, they succeeded in making rockets that could escape Earth's gravity. Analyze the options What should we pay attention to key information: subject, object... pronouns, linking words expressions to tell order of time, space... A. Although scientists try to make sure nothing goes wrong, accidents can still happen. B. Space exploration has come a long way, and we now hope to discover other planets that are suitable enough to support life. C. The future of space exploration remains bright. D. After many experiments, they succeeded in making rockets that could escape Earth’s gravity. “Are we alone What’s out there ” People have always looked up at the stars and wondered about space. Today, scientists design vehicles to carry astronauts into ... ...
