高中英语Unit2SailingtheoceansSectionⅠWarmingUpReading—Preparing教案新人教版选修.docx

Unit 2 Sailing the oceans教制背景阚河流孕育着世界各地的文明，我们不能只是向她们索取，更重要的是要保护她们。在美 国举行的River Spirit Exchange活动，正在帮助中国和美国的青年们更好地了解对方，了 解河流，从而一起协作，更好地保护河流。Sister rivers build cultural bridge between US and ChinaThe Mississippi is the major river system in the United States. The Yangtze is China' s longest river.Although a world apart , the two water ways share conservation（保护）concerns that provide a cultural bridge between students from the United States and China, as well as from other parts of the world.41 students from a dozen colleges explored a section of the Mississippi in Wisconsin and Iowa, to learn about the environment, and each other.The students, from the US, China and other countries, took part in the River Spirit Exchange program.The cross-cultural educational experience focuses on the Mississippi and China' s longest river, the Yangtze.This three day get-together featured story-telling, camping and canoeing（戈ij 独木舟）.It' s part of a larger lesson about conservation projects that can be used on both the Yangtze and Mississippi.After the group met at the Crane Foundation preserve, they headed south to an area of the Kickapoo River, where a 20-year conservation protected the natural setting of the waterway.The effort was led by the director of the Lower Wisconsin State Riverway Board.He told the group he was proud of its success. "I believe because of the Riverway Project we can make sure that our grandchildren? s grandchildren will be able to set a canoe in the waters of the Wisconsin River and be able to experience the samebeauty that we can see today and what Native Americans saw many generations before.'But accomplishing that was not easy. He told the students setting rules for loggers （樵夫），farmers, landowners and developers caused anger and even a few threats of violence between the two sides.Similar difficulties were met in China when people were trying to preserve the Yangtze River.Chinese student Lu Xiaojun said the Mississippi and Yangtze River were uniting these students from opposite ends of the earth.uWe got to know each other during the exchange,“ he said. He hoped that, by working together, they would find solutions to preserving these waterways. "I think it certainly helped people change their thinking and so they can look beyond now to the future. ”Section I Warming Up & ReadingPreparing自学导引窖管O 自主探究-巩固新知.U重点单词1. mercy n.2. exploration n.3. overhead adv. adj.二新知感情，明其意仁慈；宽恕；怜悯探险；探测在头顶上；在空中；在高处 在头上的4. random adj.5. awkward adj.6. reference n.7. minimum adj.8. secure adj.9. precise adj.10. simplify vt.11. shortcoming n.12. rel iable adj.13. update vt.14. tendency n.任意的；随便的 难使用的；笨拙的 参考最小的；最低的 安全的；可靠的 精确的；准确的 单一化；简单化 缺点；短处可靠的；可信赖的 更新趋向；倾向用其活重点短语受支配制定出把与相比较与相关联犯错误仿其神1. at the mercy of2. work out3. compare sth. with sth.4. in relation to.5. make mistakes重点句型1. How do you think seamen found their way before modern accurate methods of navigation were invented?你们认为现在精确的航海方法被发明之前海员们是怎么找到方法进行航海的？2. We may well wonder how seamen explored the oceans before latitude and longitude made it possible to plot a ship' s position on g map.我们很可能感到奇怪，在经纬度被用来在地图上标出船只位置之前，海员是如何进行探 索的。3. This seems to have been the first and most useful form of exploration which carried the minimum amount of risk.这似乎已是最早的、最有用的探险方式，所冒风险也最小。语篇理解I Scan the text and then choose the best answer according to the text.1. A skilled seaman cannot use the to plot a ship' s position.A. flagB. sunC. cloudsD. North Star2. The use of seaweed is to.A. judge whether the ship is close to landB. know how long the seamen left their homeC. tell the distance of the land and the shipD. make their journey meaningful3. How many things did the seamen use before latitude and longitude were plotted?A. Four.B. Five.C. Seven.D. Eight.4. We can learn from the text that there had been method(s) to findlongitude by the 17th century.A. twoB. threeC. oneD. no5. What, s the main idea of the passage?A. Why early seaman wanted to sail the ocean.B. There is useful information in an encyclopedia.C. Early sailing men went exploring the seas using their skills and simple instruments.D. Latitude and longitude are important to plot a ship' s position.II Fill in the blanks according to the text.This reading explains 1. seamen explored the oceans and what kind of 2. ( they were navigating the open seas without 5.(see) land. The voyages of travellers before the 6.(seventeen) century show that they were not at 7.mercy of the sea even though they did not have modern navigational aids. The seamen could use celestial bodies, wildlife, the weather or the sea to keep alongside the coastline. They could also use the compass to help find the direction that the ship needs 8. (go). They could use the Bearing Circle to measure the sun' s position and tell if they were sailing on their correct rather 9.a random course. The astrolabe, quadrant and sextant could help give the seamen the local time and allowed them 10.(find) their latitude at sea.答案:1. how 2. navigational 3. were used 5. seeing 6. seventeenth 7. the 8. to go 9. than 10.to find