高三课件Unit 2 Crossing Limits.ppt

Unit 2 Crossing Limits,World map exploration,How many continents are there in the world ? What are their names? Oceania Antarctica,1.Talk about exploration Space/polar/desert/voyage exploration 2.New words Navigator 3. Look at the pictures and talk about the people.,Zheng He, in the year between 1405 and 1433, seven large treasure fleets sailed westwards on voyages of trade and exploration. Under the command of Zheng He, the fleets set sail from the South China Sea across the Indian Ocean to the Red Sea, and then traveled further south, discovering the eastern coast of Africa.,James Cook (1728-1779) was the greatest Britain navigator. In 1768 he was sent to the Pacific On his famous second expedition (1772-75) he explored Antarctica. In 1776 he undertook his third and final voyage in which he explored the West coast of North America and tried to locate a passage between the Atlantic and Pacific oceans. On this voyage he discovered the Hawaiian Islands, and sailed up the coast of North America through the Bering Straits to the Arctic Ocean. On his return he was killed by Hawaiian islanders.,JAMES COOK,Italian-born explorer Christopher Columbus broke with tradition in 1492, sailing west in an attempt to find a shorter route to India and China. On August 3rd, 1492, Columbus departed from Palos de la Frontera, Spain, on the first of several voyages to what he later called the “New World.”,Christopher Columbus,The discovery of New Zealand Abel Abel Janszoon Tasman - Holland 1603 1659 The first European to discover New Zealand,Abel Janszoon Tasman,What do you know about the Silk Road? The Silk Road began from Changan, the city of Xian now , along the Gansu Corridor, then to West Asia and Europe.,Whats meaning of the title? Reaching out across the ocean,reach out (to sb/sth )= reach for sth,=stretch out 伸手以拿到、抓到某物,Eg.He reached for his dictionary. We must reach out to those in need. 我们应该伸出援助之手，帮助需要帮助的人。,reach vt. 到达，达到，获得 vi.,Read the passage and answer; 1.What could have been possible reasons to search for sea routes from China while routes over land were shorter and already existed? 2.In ancient China , there were some famous explores , such as Gan Ying and Zhen He ,What do you know about them?,1.Maybe because people had great curiosity about the distant Asia and Marco Polos stories, Columbus and other European explorers influenced people.They all thought Asian lands were very wealthy.,Gan Ying was a Chinese ambassador who went to the East Roman empire over land in 97 A.D and returned to Luoyang with a present from an African king -rhinoceros horns. Zheng He, in the year between 1405 and 1433, set sail from the South China Sea across the Indian Ocean to the Red Sea, and then traveled further south, discovering the eastern coast of Africa.,Judge the following sentences True or False The Europeans were the first Explorers to travel to other countries. 2. Accurate maps of the countries around the Indian Ocean were made before the fifteenth century. 3. In the years between 1405 and 1433 , Zheng He sailed westwards only on voyages of exploration. 4. Zheng He invited African countries to send ambassadors to China.,F,F,F,T,1. Who were (was) the earliest explorer(s) 0f the western Ocean? AMarco Polo BChristopher Columbus CEuropean explorers DBrave merchants 2. Through the Silk Road，China got _countries from other Aspices and glass Bsilk Cweapons Dmilk,D,A,3. An African king gave rhinoceros horns to China in order to_ Amake money Bstop the war Cshow his friendship Daward the Arabassado。 4. Which of the following became the worlds trading center over a few centuries after Han Dynasty? ACeylon BIndia CSwanhili kingdoms DEgypt,C,C,5. In Du Huans book “Record of My Travels” you can 1earn about_ AMarco Polo Bmany foreign countries CChristopher Columbus Dways to make silk 6. Who does “The Chinese Columbus” refer to? AThe Ming emperor BDu Huan CThe Chinese ambassador DZheng He,B,D,7. The text is mainly about _ Ahow the Silk Road was formed Bhow China developed trading relations with Arabic countries C Zheng Hes expeditions across the Indian 0cean Dthe history of ChinaS opening to the outside world,D,8. The small bronze statue of a lion found in Shanga most probably came from_ AChina BRome CGreece DLondon 9. “In the east，China prospered under a new dynasty” The underlined part refers to_ Athe Han Dynasty Bthe Song Dynasty Cthe Qin Dynasty Dthe Ming Dynasty,A,D,10. Which of the following can be inferred from the text? AColumbusexploration was stopped for economic reasons BNo accurate maps of the countries around the Indian Ocean existed before Zheng He CIn the Ming Dynasty China had the most powerful navy in the world DThe giraffe was an animal that could not be found in China in the Ming Dynasty,C,long before before long(= soon ) There was a lively market long before. Before long you will understand what I said is good for you. I had waited him long before he came. It wont be long before you see him again. It was long before they escaped from the cruel prison.,contact,n. 接触，联系 be in contact with,eg. They have been in contact with each other for 5 years.,She came into contact with many people.,v. 联系，接触,When can I contact you tomorrow?,She contacted me upon her arrival.,make /lose contact with,in exchange for 交换，调换,eg. Hes giving her French lessons in exchange for her teaching him English.,receive one thing in place of another,exchange v.交换，互换,exchange A for B/exchange(with sb),eg. I exchanged the black cellphone for a red one.,eg. Joan exchanged seats with John.,an island off the coast of the southeast Keep off the grassland ! cut a piece off the loaf,wander ( 常与about /in/ through连用) The children wandered in the woods. The river wanders through beautiful country. They wandered up and down the road aimlessly. His mind wandered back to his college life.,command 1.The officer commanded his men