Unit2SailingtheoceansWarmingup课件(30张PPT).ppt
(共30张PPT)
人教2003课标版选修9
Unit2 Sailing the Oceans
Warming up,Pre-reading, Reading,Comprehending
He made seven voyages during his lifetime and contributed greatly to the science of navigation in China.
navigators
Zheng He
Marco Polo
James Cook
What instruments did they use in the sa...