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

人教版（2019）选择性必修四 Unit 3 Sea Exploration Learning About Language Build up your vocabulary Build up your vocabulary Complete the passage using the words from the text. There are many t__________ and legends about how seamen explored the oceans in the past. But how many of them are reliable? The fact is that they needed multiple ways to keep safe after s__________ sail. 1. Using nature to help is the first and most useful form of exploration. This includes the North Star, Sun and clouds. 2. Using the weather. Experienced captains could see the b__________ between weather and dangers. Either they withdrew the fleets or e__________ their voyage. 3. Using the sea. Skillful sailors could use tides and currents to carry ships back to the shore or pass through narrow c__________. These skills helped seamen explore the seas and discovered new lands. They needed not only the instruments but also courage and luck. ales etting onds xtended hannels Warm-up Write down the word that matches each definition. Then find the sentences containing these words in the text. Activity 1 1 an imaginary story or an exciting description of an event 2 related to the king or queen of a country 3 to reach an agreement by discussion 4 to stop taking part in an activity 5 to make something longer or larger 6 a connection between people 7 a level of quality, ability, etc. 8 a deep passage of water used as a route for ships tale royal negotiate withdraw extend bond league channel n. adj. v. v. v. n. n. n. 1. tale Marco Polo’s tales inspired European explorers to search for sea routes from west to east. 2. royal African royal families sent gifts such as giraffes as gestures of friendship in return for gold, silk, and spices. 3. negotiate Here, merchants from Chin