初中英语牛津版 (深圳&广州)九年级下册（2014秋审查）Unit 3 The environment背景图课件ppt

这是一份初中英语牛津版 (深圳&广州)九年级下册（2014秋审查）Unit 3 The environment背景图课件ppt，文件包含Unit3TheenvironmentPeriod1ReadingⅠ课件pptx、Unit3TheenvironmentPeriod1ReadingⅠ学案doc、Unit3TheenvironmentPeriod1ReadingⅠ练习doc、Unit3TheenvironmentPeriod1ReadingⅠ教案doc等4份课件配套教学资源，其中PPT共26页， 欢迎下载使用。
1. Students can get the main idea f the text.2. Studentscan learn abut the general idea and main cntent f the text.3. Students get t knw the structure f envirnmental science article.
Hw much d yu knw abut the greenhuse effect?
Hw can we save the Earth?
We shuld nly buy and use prduct.
We shuld prtect the .
the air arund Earth
atmsphere n.
adj. 无生命的；无生物生长的
a lifeless planet 没有生物的行星
greenhuse n. 温室
Smking is a bad .
Presentatin
There is an atmsphere. It cntrls Hwever, we are plluting The gases cause the atmsphere The Earth is getting We call this
A the greenhuse effectB the Earth with harmful gasesC warmer and warmerD t keep in t much heat frm the SunE arund the EarthF the Earth’s temperature
Match the sentences with similar meanings.
What is the result f the greenhuse effect? In grups, discuss this with yur classmates.
The greenhuse effect results in: plar ice melting and the rise f sea levels hurricanes (飓风) and ther strms are likely t happen mre frequently as well as flds and drughts (旱灾) fresh water will be less availablesme diseases spread faster
What is the article mainly abut?What prblems des the article discuss?A cnsumer is smene wh buys and uses things. Can yu guess what a “green cnsumer” is?
Envirnmental prblems.
The greenhuse effect, cutting dwn frests and bad habits.
A “green cnsumer” is smene wh nly buys and uses things friendly t the envirnment.
Befre yu read
Read and answer the questins.
Lk at the article n page 35 and chse the best answer.
The article is prbably frm a(n) ____.a advertisementb pster abut the Earth Hurc envirnmental science bkd cmic bk
The wrld is in dangerOur wrld is in danger. We must d smething t prtect the envirnment. But, what are the main prblems we face?The greenhuse effectThe atmsphere arund the Earth is necessary fr all living things. It is like the glass f a greenhuse, letting sunlight in and keeping heat frm getting ut. Withut it, the Earth wuld be the same as the Mn—cld and lifeless.When we burn fuels such as petrl and cal, we prduce a gas called carbn dixide (CO2). T much f this gas pllutes the atmsphere, and causes it t keep in t much heat. As a result f the greenhuse effect, the Earth’s temperature is increasing. This causes sea level t rise, and in the future may cause cities t disappear.
Task 1: Read the first part and make the fllwing sentences int crrect rder.
Read and finish the fllwing tasks.
( )T much CO2 pllutes the atmsphere.( )The atmsphere des nt let the heat ut.( )The atmsphere lets the sunlight in.( )The atmsphere keeps in t much heat.( )The sunlight reaches the atmsphere f the Earth.( )The greenhuse effect takes place — the Earth’s temperature increases.( )Peple burn fuels such as petrl and cal and prduce a lt f CO2.
Read the first paragraph and find ut the main idea.
Our wrld is in danger.
Cutting dwn frestsEvery year, we destry nature by cutting dwn huge areas f frests. This makes the greenhuse effect wrse because trees take in CO2 and prduce xygen. Cutting dwn trees als destrys the hmes f the animals that live in ur frests, and causes the surface f the sil t be easily destryed by rain. This can result in flds and even mre damage t the envirnment.
Read the secnd paragraph and find ut the main idea.
The atmsphere arund Earth is imprtant t all living things.
Bad habitsMany f ur habits cause pllutin. Peple ften use things nce and then thrw them away, r leave them n the grund as litter. This creates muntains f rubbish and pllutes urland and seas.
Read the third paragraph and find ut the main idea.
Cutting dwn trees cause many prblems.
Bad habits cause pllutin. Rubbish shuld be thrwn away in right way r we shuld use recycling things.
In rder t prtect the envirnment, we need t take prper actin. We shuld be different frm manycnsumers and becme “green cnsumers”. This means that we shuld nly buy and use prductsfriendly t the envirnment. We shuld als recycle asmany things as we can. We can reuse things frthe same purpse as befre, r we can use them fr new purpses. If we just learn t live in new and different ways, we can make a difference.
Read the last paragraph and find ut the main idea.
Be green cnsumers and try t buy and use prducts friendly t the envirnment.
Discuss the questins belw in grups and then reprt yur result t the whle class. Let’s see which grup is the best! What ther bad habits d peple have in their daily lives?What shuld we d t help prtect the envirnment?