Unit 2 Out of this world（课件）-【优化探究】2022-2023学年新教材高中英语选择性必修第三册同步导学案（牛津译林版2020）

下页 上页 译林英语选择性必修第三册   现如今，各国都致力于探索外太空，在外太空中与在地球上可能会有很多不同之处，现在让我们一起了解一下航天员的太空漫步情况。 下页 上页 译林英语选择性必修第三册 Just like any other home，the International Space Station (ISS) requires some housekeeping，in the form of routine work and repairs.That is why NASA astronaut Scolt Kelly and fellow astronaut Kjell Lindgren performed a spacewalk outside the station on Wednesday.The operation began at 8：03 a．m.and lasted for more than seven hours.It was the first spacewalk for both men. 下页 上页 译林英语选择性必修第三册 The ISS has been in constant use for 15 years and needs to be upgraded from time to time.During their spacewalk, Kelly and Lindgren did basic electrical work，such as attaching new cables that will provide power for docking ports on the station.The ports will be used when new crew and cargo ships arrive at the ISS.The two astronauts also placed a thermal (防寒的) cover on a key scientific instrument on the station to protect it from the cold temperatures of space. 下页 上页 译林英语选择性必修第三册 As the more senior astronaut, Kelly led the spacewalk.However，Lindgren handled some of the more challenging parts of the job in some of the tighter areas of the station. “Lindgren has longer arms，” said NASA's Grant Slusser, who served as ground director for Wednesday's spacewalk. 下页 上页 译林英语选择性必修第三册 Kelly and Lindgren spent months training and practicing for the operation.The preparation began in NASA's Neutral Buoyancy Lab (NBL), a 6.2­million­gallon swimming pool with a full­size replica (复制品) of most of the ISS located at the bottom.Here astronauts become accustomed to working in an environment similar to the one outside the space station. 下页 上页 译林英语选择性必修第三册 $