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PrefaceUnit 1 Computers and NetworkPart l Listeningfor technologyPart II Reading for explorationPassage A Wearable Computers Will Transform LanguagePassage B Network SecurityPart III Watching for discussionPart IV Testing for consolidationUnit 2 Automation and RoboticsPart I Listening for technologyPart II Reading for explorationPassage A The Function and ELS Issues of a RobotPassage B Dyson's Robot Vacuum Has 360-Degree Camera£¬ Tank Treads£¬Cyclone SuctionPart Ill Watching for DiscussionPart IV Testing for consoliclationUnit 3 EnergyPart I Listening foe technologyPart II Reacling for explorationPassage A Capturing Value in Global Gas£º Prepare Now for anUncertain FuturePassage B Fact or Fiction£º Energy Can Neither Be Created Nor Destroyed? Part III Watching for cliscussionPart IV Testing for consoliclationUnit 4 Environmental SciencePart I Listening for technologyPart II Reading for explorationPassage A The Best Way to Deal With Ocean TrashPassage B Tropical Forests May Not Combat Climate ChangePart III Watching for cliscussionPart IV Testing for consolidationUnit 5 Material EngineeringPart I Listening for technologyPart II Reading for explorationPassage A \"Miracle Material\" Graphene One Step Closer to Commercial UsePassage B Laser-Generated Surface Structures Create Extremely Water-Repellent MetalsPart III Watching for discussionPart IV Testing for consolidationUnit 6 Civil EngineeringPart I Listenin0 for technologyPart II Reading for explorationPassage A The Business Case for Smart Building TechnologyPassage B Speedy Analysis of Steel Fiber Reinforced ConcretePart III Watching for discussionPart IV Testing for consolidationUnit 7 Communication TechnologyPart I Listening for technologyPart II Reading for explorationPassage A Generations of Mobile Wireless Communication NetworksPassage B Wireless Companies Put up More \"Stealth\" TowersPart III Watching for discussionPart IV Testing for consolidationUnit 8 Optimizing HealthPart I Listening for technologyPart II Reacling for explorationPassage A The World Is Richer£¬ Fatter£¬ and Not Much HappierPassage B The Science of SleepPart III Watching for cliscussionPart IV Testing for consolidationAppendix Reference answer