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Unit2 单元详解 1. 只工作不玩耍，聪明的孩子也变傻All work and no play makes Jack a dull boy.2. 十分舒适，十分熟悉as comfortable as an old shoeThis old house is fine .It is as comfortable as an old shoe.3. 被宰了 highway robbery =it is very expensive 4.A A 制 go Dutch (with somebody)to share the cost of a meal in a restaurant Unit 2 Crossing limits 超越极限Warming up Look at the pictures and talk about these people and try to find out what made them famous?Picture 1.Zheng He is famous for having made several great voyages to the west,reaching as far as Africa.Picture 2.James Cook ,English explorer is famous for having made three great voyages around the world, and mapping coasts and sea routes.Picture3. Christopher Columbus ,an Italian, discovered America in Columbus was the first European to explore America.He explored the West Indies 印度群岛 South America,and Central America. Picture 4. Abel Tasman was a Dutchman who discovered New Zealand. He made several trading and exploring voyages in the Pacific and Indian oceans.1. Who was the person that mapped the Indian coast?---Zheng He.2. Who was the first person that discovered the”New World?---Columbus.3.Why did Abel Tasman sail along the coast of Australia and many islands in the Pacific Ocean?---Tasman was to answer questions about the nature of the geography of Pacific Ocean region during his exploration.4.What was James Cook’s purpose of his voyage?---Cook was chosen by the Royal Society of London to undertake a scientific journey to Tahiti to observe and document the event as the planet Venus passed between the earth and the sun .His secret task was to find new landmasses in the south. There are seven continents in the world.They are Asia,...