U12 Reading club 2-2021-2022学年高二英语教学课件+音视频素材（北师大2019版选择性必修四）

Simple Inventions That Changed the World Unit 12 Innovation Reading club 2 Who? When and where were them invented and developed? Working principles? How have these inventions changed our lives? Read and draw a mindmap of the 3 simiple inventions the ancient Egyptians water clock Sundial /ˈsʌndaɪəl/ 日晷 Gnomon /ˈnəʊmɒn/ 圭表 Clepsydra /ˈklepsɪdrə/ 漏刻 The accurate mechanical clock pendulum clock  /ˈpendʒələm/ Compressed gases in metal coil inside the refrigerator suck the heat out of the surrounding air as the gases expand. Elevators have changed the city skylines. The skyline is the line or shape that is formed where the sky meets buildings or the land.  Inventions When Where Inventors Changed our lives the clock in the 16th and 17th centuries Europe European inventors almost every part of our day-to-day lives is governed by time and our ability to measure it accurately Inventions When Where Inventors Changed our lives the refrigerator 1805 Oliver Evans it’s a common object in