初中Section A背景图课件ppt

这是一份初中Section A背景图课件ppt，文件包含核心素养人教版小学数学五年级下册27奇偶性课件pptx、核心素养人教版小学数学五年级下册《奇偶性》教案docxdocx、核心素养人教版小学数学五年级下册27奇偶性导学案docx等3份课件配套教学资源，其中PPT共23页， 欢迎下载使用。

T listen t specific infrmatin.
T talk abut pllutin and envirnmental prtectin.
T learn t use sentences .
Let's take a lk at tw satellite images f the Earth.What changes have happened t the Earth in these 45 years?
frm bright t dim
frm blue t dark blue
fewer green and mre yellw
What have we dne?
What will happen if we keep n causing pllutin?
Here are sme wrds related t different kinds f pllutin.Write them in the bx belw. Then add mre wrds.
be related t 与……有关
mbile phnes
building huses
Listen and cmplete the sentences.
really dirty
used t d sth. “过去常常……” 表示过去习惯性的动作但如今已不存在。
play a part in ding sth. “参与做某事; 在做某事上起作用”。
Listen again and answer the fllwing questins.
1.What des Tny want t d later this afternn? He wants t ______________________ in the river later this desn’t Mark want t g with Tny? Because the river was really ______. Even the bttm f the river was full f _______, and there were ___________ fr fishermen t catch. 3. Hw was the river in the past? It used t be s _______. It has been the ___________ in this twn.
g swimming with Mark
nicest river
Rle-play the cnversatin.Then make yur wn cnversatins abut the kinds f pllutin in 1a.
The river was dirty. Even the bttm f the river was full f rubbish.
But it used t be s clean!
Yes, but peple are thrwing litter int the river.
Everyne in this twn shuld play a part in cleaning it up!
Using clean energyUsing public transprtatinSave waterTree planting and affrestatinGarbage classificatinEstablishing a prtected area
S, t help save the earth,what shuld we d ?