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1、 Lesson 14 Lesson 14 WaterWaterWaterWater the earthlandwaterThere is a lot of water on the earth，such as lakes,rivers,seas.All of us know that the 70 percent of the world is water.The earth is a ball filled with water.sea waterSea water is Cold and salty.FishesWhaleDolphinsWater grassIn the deep par
2、t of the sea,many kinds of living things live in the water.many kinds of fishes and plants live in the water a map of the world the earth mountains land living things on the top salty What do you What do you know aboutknow about the water:seas and the water:seas and rivers?You may say:rivers?You may
3、 say:”I I know it wellknow it well.I go.I go swimming and play in it.swimming and play in it.”Nearly all of you Nearly all of you know these about the water.First,look at the know these about the water.First,look at the map of the world,there is a lot of water on map of the world,there is a lot of w
4、ater on the earth.Second,the water in the sea is the earth.Second,the water in the sea is salty.Third,salty.Third,many kinds ofmany kinds of fishesfishes and plants and plants live inlive in the water.And last,the water in the the water.And last,the water in the sea can be very cold.sea can be very cold.The deeper,the colderThe deeper,the colder.What else do you know about the water?What else do you know about the water?For For exampleexample,where is the deepest part in the water ,where is the deepest part in the water of the sea,and how deep is it?of the sea,and how deep is it?