大学核心英语学习参考书 第4册PDF电子书下载

Text A:Working at Home—The Growth of Cottage Industry 1

目录Unit 1 1

Text A:The Big Bang and AfterText C:Hanging the Universe on StringsUnit 6

Text C:keep up with the satohsUnit 2 19

Text A:Exercising and MetabolismText C:The National Nutrition QuizUnit 3 34

Text A:Ifyou Want Some thing DoneText C:When Machines Have EarsUnit 4 54

Text A:Be prepared:PIanning Video ProgrammesText C:The Open CollegeUnit 5 74

Simulated CET-4(I)Unit 7 92

Text A:Predicting Crime from the WeatherText C:Protecting the EnvironmentUnit 8 109

Text A:Chunneling the ChannelText C:Hands off Captains on the BridgeUnit 9 131

Text A:Fire in the BushRext C:Alaska's Speeding GlacierUnit 10 149

Text A:Sound Strategies for SurvivalText C:Strange World of Palau's Salt LakesUnit 11 168