北京版四年级上册Lesson 25完美版ppt课件

这是一份北京版四年级上册Lesson 25完美版ppt课件，共22页。PPT课件主要包含了lake，stream 等内容，欢迎下载使用。
Teachers can encurage students t think by asking:We can't live withut water.Can water change frm?What can we use water t d?
Where can we see water?
Can water change its frm?改变形式
Water freezes凝结，结冰
Water turns int gas气体
three frms f water
What can we use water t d?
t wash clthes
t wash the dishes
t take /have a shwer淋浴T have a bath泡澡
t make drinks
t put ut fires灭火
t water vegetables
t make things in factries
Why shuld we save water?
nt leave the tap n while yu wash…/ Use a basin面盆
nt leave the tap n while yu…
nt water plants t much
Flush yur tilet冲马桶 with used water
Hmewrk:Read the dialgue and recite it.