2019-2020年高中英语 Unit2Sailing the oceans教案（2） 新人教版选修9Part One: Teaching DesignPeriod 1: A sample lesson plan for reading(SAILING THE OCEANS)AimsTo help students read about sailing the oceans To help students learn about the predicateProceduresWarming up by leaning about navigatorWhat is a navigator?A navigator is the person onboard a ship responsible for the navigation of the vessel. On aircraft, the position may also be referred to as a flight officer. The navigators responsibilities include planning the journey, advising the captain (or pilot) while en route, and ensuring that hazards or obstacles are avoided.What is exploration?Exploration is the act of searching or traveling for the purpose of discovery, e.g. of unknown regions, including space (space exploration), or oil, gas, coal, ores, water (also known as prospecting), or information. Exploration has existed as long as human beings, but its peak is seen as being during the Age of Exploration when European navigators travelled around the world. In scientific research, exploration is one of three purposes of research (the other two being description and explanation). Exploration is the attempt to develop an initial, rough understanding of some phenomenon.Warming up by talking about Zheng Hes Seven VoyagesIn July 11, 1405, the eunuch Zheng He of the Ming Dynasty royal court set out on his first overseas voyage.In the following 28 years, this navigator proceeded to carry out six more voyages, acpanied by a huge entourage of nearly 30,000 people. By traveling throughout Southeast Asia, and around the Indian Ocean to the Red Sea and East Africa, he also landed at over thirty different nations. He was the earliest largest scale navigation in world history, ing more than half a century earlier than Columbusfamous exploits.Warming up by looking and listeningHello, class. Do you know this man? Yes, he is Marco Polo.Marco Polo (1254-1324), is probably the most famous Westerner traveled on the Silk Road. He excelled all the other travelers in his determination, his writing, and his influence. His journey through Asia lasted 24 years. He reached further than any of his predecessors, beyond Mongolia to China. He became a confidant of Kublai Khan (1214-1294). He traveled the whole of China and returned to tell the tale, which became the greatest travelogue.I. Pre-reading What are navigational instruments? Navigational instruments were built in the age of exploration to guide the explorers to their destinations.navigational instrument - an instrument used for navigating artificial horizon, flight indicator, gyro horizon - a navigational instrument based on a gyroscope; provides an artificial horizon for the pilotpass - navigational instrument for finding directionsdepth finder - navigational instrument used to measure the depth of a body of water (as by ultrasound or radar)inclinometer - an instrument showing the angle that an aircraft makes with the horizoninstrument - a device that requires skill for proper useasdic, echo sounder, sonar - a measuring instrument that sends out an acoustic pulse in water and measures distances in terms of the time for the echo of the pulse to return; sonar is an acronym for sound navigation ranging;asdic is an acronym for anti-submarine detection investigation mitteeII. Reading for forms Read the text SAILING THE OCEANS on page 12 to: cut/ the sentence into thought groups, blacken the predicative, darken the connectives and underline all the useful expressions.SAILING THE OCEANSWe may well wonder/ how seamen explored the oceans/ before latitude /and longitude made it possible /to plot a ships position/ on a mapThe voyages of travelers/ before the 17th century /show that /they were not at the mercy of the sea /even though they did not have modern navigational aidsSo/ how did they navigate so well? Read these pages/ from an encyclopediaPage l：Using nature to help Keeping alongside the coastline This seems to have been the first /and most useful form of exploration /which carried the minimum amount of riskUsing celestial bodies North StarAt the North Pole /the North Star is at its highest position /in the sky, but at the equator /it is along the horizonSo /acplished navigators were able to use it /to plot their positionsSunOn a clear day /especially during the summer/ the sailors could use the sun /overhead /at midday to navigate byThey can use the height of the sun /to work out their latitude CloudsSea captains observed the clouds /over islands. There is a special cloud formation /which indicates /there is land/ close by.Using wildlife SeaweedSailors often saw seaweed/ in the sea /and could tell /by the colour /and smell/ how long it had been thereIf it was flesh /and smelled strongly，then /the ship was close to land BirdsSea birds could be used to show the way/ to land /when it was nowhere to be seenIn the