Central Topic: “zheng he,the great ancient Chinese explorer"思维导图
航行的背景，人物简介等内容讲解
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思维导图大纲
Central Topic: “zheng he,the great ancient Chinese explorer"思维导图模板大纲
一、Encounter on Pate Island (1999)
American journalist's report
Descendants of Chinese sailors
Clues: Asian appearance, porcelain heirlooms, shards
Echo of maritime exploration
二、Background of the Voyages
Time period: 6 centuries ago
划分的母项
被划分的概念
划分的子项
从母项中划分出来的种概念
划分的标准
Fleet's composition: giant junks, supply ships, etc.
划分必须相称
划分根据必须同一
各子项必须相互排斥
Crew size: over 27,000
Comparison with Columbus
四、Voyages (1405-1433)
Seven expeditions
Led by Zheng He
子主题 1
Half-century before Europeans
三、Zheng He's Life
Birth: Yunnan, China (1371)
Childhood curiosity
Education: Confucius, Mencius
Military training and palace duties
Knowledge in ship construction
五、Treasure Fleet Construction (1403)
Engineering innovation: divided hulls
Features: watertight compartments, ballast
Roots in early Chinese seafaring
六、Objectives of the Voyages
Establish ties with rulers
Trade goods: silk, porcelain, lacquerware
Exchange for spices, ivory, medicines, etc.
七、Achievements and Impact
Trade pacts
Fight against pirates
Diplomatic skills impress rulers
Sending ambassadors to Ming court
八、Seventh Expedition (1431-1433)
Sailing to Malindi, Kenya
Stopping at trading ports
Zheng He's death
九、Decline of the Voyages
Military investment shifted to the north
Focus on Great Wall construction
Navy shrank, ships destroyed
End of Ming Dynasty sea voyages
十、Legacy and Significance
Spread of Chinese culture and influence
Challenges human limits at sea
Contributions to modern technologies: gunpowder, compass
Reshaping Asian life
Great explorer in world history
Contributions to human civilization
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