PrefaceUnit 1 Computers and Network 1Part I Listening for technology 1Part II Reading for exploration 2Passage A The New Old Thing 2Passage B Network Security 10Part III Watching for discussion 15Part IV Testing for consolidation 17Unit 2 Automation and Robotics 19Part I Listening for technology 19Part II Reading for exploration 20Passage A The Function and ELS Issues of a Robot 20Passage B Dyson��s Robot Vacuum Has 360-Degree Camera, Tank Treads, Cyclone Suction 27Part III Watching for discussion 32Part IV Testing for consolidation 33Unit 3 Energy 36Part I Listening for technology 36Part II Reading for exploration 37Passage A Capturing Value in Global Gas: Prepare Now for an Uncertain Future 37Passage B Fact or Fiction: Energy Can Neither Be Created Nor Destroyed�� 43Part III Watching for discussion 46Part IV Testing for consolidation 48Unit 4 Environmental Science 50Part I Listening for technology 50Part II Reading for exploration 51Passage A What Do We Know about Wildfires and Climate Change 51Passage B Tropical Forests May Not Combat Climate Change 60Part III Watching for discussion 64Part IV Testing for consolidation 65Unit 5 Materials Engineering 67Part I Listening for technology 67Part II Reading for exploration 68Passage A ��Miracle Material�� Graphene One Step Closer to Commercial Use 68Passage B Laser-Generated Surface Structures Create Extremely Water- Repellent Metals 75Part III Watching for discussion 79Part IV Testing for consolidation 80Unit 6 Civil Engineering 82Part I Listening for technology 82Part II Reading for exploration 83Passage A The Business Case for Smart Building Technology 83Passage B Speedy Analysis of Steel Fiber Reinforced Concrete 91Part III Watching for discussion 94Part IV Testing for consolidation 96Unit 7 Communication Technology 98Part I Listening for technology 98Part II Reading for exploration 99Passage A Alexa, What Are You Doing with My Family's Personal Info? 99Passage B Wireless Companies Put up More ��Stealth�� Towers 106Part III Watching for discussion 110Part IV Testing for consolidation 111Unit 8 Optimizing Health 113Part I Listening for technology 113Part II Reading for exploration 114Passage A The World Is Richer, Fatter, and Not Much Happier 114Passage B The Science of Sleep 122Part III Watching for discussion 127Part IV Testing for consolidation 129Appendix Reference Answer 131