北师版必修3配套课件:8.4 Lesson 4 Journey to the Antarctic(29张PPT).pptxpage1Lesson 4 Journey to the Antarcticpage2一二三四page3一二三四page4一二三四page5一二三四page6一二三四page7一二三四page8一二三四page9123456789page10123456789page11123456789page12123456789page13123456789page14123456789page15123456789page16123456789page17123456789page18123456789page19123456789page20123456789page21123456789page22123456789page23123456789page24123456789page25123456789page26123456789page27123456789page2812345..