Unit 3 Sea Exploration Reading and Thinking 课件-2022-2023学年高中英语人教版（2019）选择性必修第四册

UNIT 3 SEA EXPLORATION They (oceans) provide a breeding ground for life, connect the world and promote development. --- Xi Jinping 海洋孕育了生命、联通了世界、促进了发展 --- 习近平 Lead-in 1. What do you think of when you see the photos? 2. Can you describe ocean using your own language? invader, corals, fish, harmony… The ocean is the cradle of life. (metaphor) The ocean hides secrets like mankind. (simile, personification) The ocean gave my face a salty slap as his tides rose. (personification) Lead-in Sea voyages, sea exploitation, sea protection, the development of a harmonious relationship between humans and the sea … What do you know about sea exploration? What do you want to know about sea exploration? Do you know any stories about sea voyages? Lead-in Zheng He was a Chinese admiral and explorer who made seven voyages to the Western Sea. The first voyage started in Yongle three years (1405), and the last voyage ended in Xuande eight years (1433), totaling seven times. Zheng He's voyages are one of the world navigation feats in history. Lead-in Ferdinand Magellan is a Portuguese navigator and explorer who made the first voyage around the world in 1519. He sailed around South America, discovering the Strait of Magellan, and across the Pacific. Lead-in Christopher Columbus was an Italian explorer whose journeys kicked off centuries of exploration and exploitation on the American continents. He discovered a new world in 1492. Prediction 1. What the content of the text is? 2. What is the style of the text? 3. What are the four major types of essay do you know? It is an expository essay. Narrative, descriptive, expository, and argumentative. The text is mainly about how Chinese people conduct sea explorations over time. A title usually covers the main point of the subject or keywords of the essay. It shares the theme of the essay and tells the reader what to expect. A na