1. the teacher asks the students how important water is to our daily lives. The students tell how to save water. and students know that the water we use, mainly how many percentage? As the ice a few percent? is in the sea and the ocean a few percent? Students help each other to guess the answer. The teacher did not reveal the answers., students read an article about water in practice page 47 article 5. Ask students with original question again. Students help each other answer. Then the students read the article again to fill in the gaps. Teachers to reveal the answer.
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