Unit 7 What is nature? Lesson 25 课件

课件21张PPT。UNIT 7 WHAT
IS NATURE
Lesson25 Teachers can encourage students to think by asking:
We can't live without water.
Can water change form?
What can we use water to do?
Where can we see water?lakestream 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 waterWhat can we use water to do?to wash clothesto wash the dishesto take /have a shower淋浴
To have a bath泡澡to make drinksto put out fires灭火to water vegetablesto make things in factoriesWhy 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 muchFlush your toilet冲马桶
with used waterHomework:
Read the dialogue and recite it.