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执教人:李文荣 sea in the moonlight sea in the sunset romantic scene relaxing yourself enjoying the sunshine swimming surfing Part 1: general introduction Part 2: sea water Part 3: the Mediterranean Part 4: coral in the sea Part 5: salt lakes (the Dead sea) Part 1: General introduction blue Seen from space, the earth is ______. This is because the vast oceans ______ cover up two-thirds of the earth’s ________ surface , and __________ below the sea. much of the surface lies _______ Part 2: sea water salty clean water 35 parts of salt seaweeds seaweeds minerals chemicals the Mediterranean between Europe and Africa Part 3: the Mediterranean Size: 3700 km long 1800 km wide hot weather Salt : 37-39 parts losing water to the air hard to be changed with Atlantic water ( one entrance ) the Straits of Gibraltar The Mediterranean is charming site for sightseeing and travel, which draws thousands of visitors there each year. 1.What is coral? ------Coral is not a plant but a variety of animal life of different shapes and bright colors. 2.What conditions do corals need to grow? water temperature; 20 living conditions plenty of light clear water shallow water: less than 60 meters the Dead Sea floating on the sea few living things Part 5 :the Dead Sea salt staying a salt lake: 250 parts few living things a salt lake: 250 parts Part 5 : the Dead Sea minerals: from natural springs from the River Jordan 1.The ocean water is ______, salty which is made up of minerals How does the sea water stay 11 other ________. clean? The _________ seaweeds play an important part in it. Various _________ chemicals produced by them can keep the water clean. 2. The Mediterranean is in the place where the weather is very _____. hot The sea loses much ______ water to the _____, air and the _____ salt stays. It takes ____ 80 years for its water to be _________ changed with Atlantic water, for there is only one narrow _________ entrance . 3. Coral is a variety of animal _______ life, which only lives in the sea where the water is______.The clean water__________ temperature must not fall below ____ 20℃ and there must be plenty of _____. light The depth of water should be ____than 60 meters. The_______ less longest coral bed in the world is near the northeast coast of ________. Australia 4.The Dead Sea is a salt lake ___ It is so salty that it’s hard to swim ____ or dive ___ , as your body will _____on float the surface. The minerals in it are partly supplied by natural _______ springs , and partly by the River ______. Jordan the Dead Sea the Great Barrier Reef Hainan Work in groups: Suppose you are a guide or a manager in a Tourist company. Try to introduce these places we mentioned just now and an interesting place in China. Rules: 1.Try your best to draw more visitors to go with you. 2. Others are all visitors. After the manager and the guide’s introduction,you can ask them questions and decide where to go by their answers. How can we protect our sea?(one student,one sentence)