四年级上册英语ppt课件UNIT7WHATISNATURELesson251北京课改版.ppt
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1、UNIT 7 WHAT IS NATURE Lesson25,Teachers can encourage students to think by asking:We cant live without water.Can water change form?What can we use water to do?,Where can we see water?,lake,stream,reservoir,Can water change its form?改变形式,Water freezes凝结,结冰,Water turns into gas气体,three forms of water,
2、What can we use water to do?,to wash clothes,to wash the dishes,to take/have a shower淋浴To have a bath泡澡,to make drinks,to put out fires灭火,to water vegetables,to make things in factories,Why should we save water?,not leave the tap on while you wash/Use a basin面盆,not leave the tap on while you,not water plants too much,Flush your toilet冲马桶 with used water,Homework:Read the dialogue and recite it.,
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