1、人教课标高三 选修 9 Unit 21.Read these words and then listen 1.Read these words and then listen to the tape.Circle those aids that to the tape.Circle those aids that early sailors used to find their way.early sailors used to find their pass maps fish movementsstars weather wavescurrents clouds rainfallbirds
2、 other ships mountains2.Listen to the tape again and fill 2.Listen to the tape again and fill in the chart.in the chart.Sailors fromSea or OceanSkillsPhoenicia MediterraneanUsed the sky to find their wayNorthPolynesiaNorway PacificStudied the waves of the ocean Watched birds to find land 3.These are
3、 some Viking sailing 3.These are some Viking sailing directions from Norway to Greenland.directions from Norway to Greenland.Sail west but keep to the north of the Sail west but keep to the north of the Shetland Islands so you can hardly see Shetland Islands so you can hardly see them in good weathe
4、r.them in good weather.Stay far enough south of the Stay far enough south of the FaroesFaroes so so that their steep mountains are just that their steep mountains are just halfway up the horizon.halfway up the horizon.Keep south of Iceland so that you Keep south of Iceland so that you cannot see lan
5、d but just coastal birds.cannot see land but just coastal birds.Follow this route and you should Follow this route and you should reach Greenland.reach Greenland.Use the information from the listening Use the information from the listening to explain these sailing strategies.to explain these sailing
6、 strategies.1.1.Vikings used to prefer to sail following Vikings used to prefer to sail following the coastline so they could check that the coastline so they could check that they were on the correct route.they were on the correct route.2.2.Vikings used birds,and natural Vikings used birds,and natu
7、ral features like mountains,to direct their features like mountains,to direct their ships.ships.4.Polynesian seamen had traditional sayings to help them with their sailing.Can you explain what they mean?1.“If you can read the ocean,you will never be lost.”Study the waves so that you can read what wi
8、ll happen in the weather or when land is close.2.“Watch for when the sun grows.”3.“The stars are the eyes of Heaven.”The position of the morning sun on the horizon can help you check your course.The stars can give you information about your position and can help you“see”where you are.4.“When the bird flies out to sea,the sea will grow calm.”Birds do not fly out to sea if a storm is coming so a bird flying away from the shore means good weather.