外研版（2024）七年级下册（2024）Developing ideas授课ppt课件

这是一份外研版（2024）七年级下册（2024）Developing ideas授课ppt课件，共25页。PPT课件主要包含了 sea，lake，snake，river，Name， km²，Rainforest，Glaciers，melting，Why等内容，欢迎下载使用。
View and say.
What can yu see in these pictures?
ice and snw
glacier
I can see __________.
salty
-saltier
frest/trees/plants
rainfrest
Natural wnders
Read and take ntes (做笔记).
It lies between Jrdan and Israelrd
. It’s a salty lake.
. It’s saltier than the ceans.
. Its water and mud are gd fr us.
The Dead Sea
Feature(特征)
. It’s easy t lie n the surface.
. It’s a great place t explre.
Read and take ntes (做笔记).
Summarize (总结).
What d yu think f them？
They are beautiful and amazing !
blue and salty
ld and big
white and cld
See, think and wnder(想知道).
the Dead Sea
The glaciers are turning int water.
The will be fewer glaciers.
Why are they turning int water？
See, think and wnder (想知道).
Trees are becming fewer and fewer.
Animals will lse their hme.
Hw can we help them?
The Dead Sea is becming smaller.
We may lse the natural wnder.
What can we d t help？
The rainfrests are diappearing.
disappear - disappearing
Think and cmplete.
Causes (起因)
Glaciers are turning int water.
Watch and answer.
Why des the Dead Sea becme smaller？
water level
Human activities
Take water fr farming
Take water fr drinking
Take water fr factries
Because peple take t much water frm the Jrdan river.
peple cut dwn trees t make space fr farming.
peple cut dwn trees fr wd.
peple burn trees fr wd and t make space fr field.
peple cut dwn trees fr mineral (矿物质) and t make space fr rads.
View and match.
Why is the rainfrest disappearing?
peple burn trees t make space fr field.
peple cut dwn trees fr mineral (矿物质) and t make space fr rads and factries.
Watch and cmplete.
The glaciers are shrinking. In the1800s, there were abut ______ glaciers, but nw we nly have ______ glaciers.The increasing temperature makes glaciers_____________.
turn int water
becming fewer and fewer
The natural wnders are in danger, what can peple d t help them?
Think and answer.
Take less water.
Stp cutting dwn trees.
Stp climate change.
As a middle schl student, what can yu d t help them?
Small things make a big difference.
Chse ne f the natural wnders t intrduce it frm these 6 aspects (方面).
The Dead Sea lies between Jrdan and Israel. It’s a super salty lake but nt a sea. It’s even saltier than the ceans! s peple can lie n the surface. Its water and mud are gd fr ur skin. But nw the water level is ging dwn, and the lake is becming smaller. Because peple are taking t much water frm the rivers arund it. Let’s use less water t save the Dead Sea!
Tip: Try t use linking wrds t be lgical (逻辑的).
Nature desn’t need us, but we need nature! Let’s prtect it and stay in peace with it!
Must d:Chse anther natural wnder t intrduce.Chse t d:Search fr mre infrmatin abut natural wnders in danger.