●Unit One Water
●Section One Speaking
●Section Two Listening
●Section Three Reading
●Passage A Treasuring Water
●Passage B The Water Resources of China and SNWTP
●Section Four Writing
●Three Gorges Dam
●Section One Speaking
●Section Two Listening
●Section Three Reading
●Passage A Three Gorges Dam(Ⅰ)
●Passage B Three Gorges Dam(Ⅱ)
●Section Four Writing
●Unit Three Dams(Ⅰ)
●Section One Speaking
●Section Two Listening
●Section Three Reading
●Passage A A Gravity Dam
●Passage B An Arch Darn
●部分目錄