初中英语牛津版 (深圳&广州)九年级下册（2014秋审查）Unit 3 The environment课堂教学课件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课堂教学课件ppt，文件包含Unit3TheenvironmentPeriod2ReadingIIListening课件pptx、Unit3TheenvironmentPeriod2ReadingIIListening学案doc、Unit3TheenvironmentPeriod2ReadingIIListening练习doc、Unit3TheenvironmentPeriod2ReadingIIListening教案doc、Unit3Theenvironmentmp3等5份课件配套教学资源，其中PPT共38页， 欢迎下载使用。
1. Students can get the main idea f the text.2. Students can learn abut the general idea and main cntent f the text.3. Students get t knw the structure f envirnmental science article
Translate the phrases.
1. greenhuse effect__________　6. 采取行动　　_____________2. in danger__________　7. 有作用　　　_____________3. as a result f__________　8. 充当　　　　_____________4. result in__________　9.让…进入　　 _____________5. muntains f__________　10.和…一样　 _____________
温室效应在危险中由于造成；导致许多；大量
take actinmake a differenceact aslet … inthe same as
1. 她现在应该知道结果了。She'll have had the _______ by nw. 2. 整个地区与海平面齐平。The whle place is at _________.3. 一个人联系整个自然界。A man is related t all ______.
Cmplete the sentences.
4. 将表面擦光。Rub the _______ smth. 5. 把幼苗种在湿润的土壤里。Plant the seedlings in damp ____. 6. 洪水太深，汽车开不过去。The _____ was t deep t drive thrugh.
Cmprehensin
Presentatin
Replace the italicized wrds with infrmatin frm the article n page 35.
1The writer says that it is in danger.2It is necessary fr all living things.3CO2 cmes frm burning them.4This causes sea level t rise.5It causes the surface f the sil t be easily destryed by rain.6Many f ur habits cause this.
________________________________________________________________________________________________________________________________________________
the wrldThe atmspherefuelsThe increasing temperatureCutting dwn treespllutin
Prnun代词代词，是代替名词或一句话的一种词类。大多数代词具有名词和形容词的功能。英语中的代词，按其意义、特征及在句中的作用分为：人称代词、物主代词、指示代词、反身代词、相互代词、疑问代词、关系代词、连接代词、不定代词和替代词十种。
Read the article again and circle the crrect answers.
1Because f pllutin, ______.a nt enugh sunlight is reaching the Earthb nt enugh heat is leaving the Earthc nt enugh CO, is leaving the Earth2lf there are mre trees, the amunt f CO2 in the atmsphere will be _____.a greaterb lessc the same
3We can help prtect the envirnment if we _____.a change ur bad habitsb becme cnsumersc buy mre prducts4The purpse f the article is t make _____.a peple d mre t prtect the envirnmentb mre peple becme cnsumersc peple learn mre abut the envirnment
Cmplete the passage.
Our wrld is in danger. We are facing many prblems nw.The atmsphere arund the Earth is necessary fr all _______(live) things. It is like the glass f a greenhuse, letting sunlight in and keeping heat frm getting ut. Withut it, the Earth wuld be _____ same as the Mn-cld and _______ (life). Hwever, we prduce t much carbn dixide and this causes the atmsphere _______(keep) in t much heat. The greenhuse effect makes sea level rise, and in the future ___ may make cities __________(appear).
Every year, we destry nature by _______(cut) dwn huge areas f frests. This makes the greenhuse effect ______(bad) and results in flds.What's mre, many f ur habits cause _________(pllute). Fr example, we use things nce and then thrw them away，r leave them n the grund as litter. This creates muntains f rubbish and pllutes ur land and seas.In rder t prtect the envirnment, we must take prper actin. We shuld be green cnsumers. If we just learn t live ___ new and different ways, we can make a difference.
The writer gives an example f a bad habit that causes pllutin. Can yu name sme ther bad habits that cause pllutin?
Frget t turn ff lights when we leave the rm.
Change and wash clthes every day.
spit everywhere
Reading task1
Listen and read carefully .
The greenhuse effectThe atmsphere arund the Earth is necessary fr aThe wrld is in dangerOur wrld is in danger. We must d smething t prtect the envirnment. But, what are the main prblems we face?ll 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.
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.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 ur land and seas. In rder t prtect the envirnment, we need t take prper actin. We shuld be different frm many cnsumers and becme “green cnsumers”. This means that we shuld nly buy and use prducts friendly t the envirnment. We shuld als recycle as many 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.
Reading task2
Read the first part and make the fllwing sentences int crrect rder.
( )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.
Task3 read the secnd part f the text and cmplete the diagram.
We destry nature by _____________________________
dwn huge areas f frests
__________________ becmes wrse.
The hmes f the animals that live in ur frests are destryed.
The surface f the sil is easily destryed by rain.
even mre damage is dne t
The greenhuse effect
_________________________________ ______________________
___________________________ __________________
______ take place and ____ _____________________ the envirnment.
Reading task3
Read the third part and cmplete the diagram.
Peple ften _________________________, r _______________________
leave them n the grund as litter.
This creates muntains f rubbish.
This pllutes ur land and seas.
use things nce and then thrw them
______________________
___________________________________
Reading task4
Read the last part f the text and fill in the table.
In rder t prtect the envirnment, we need t take prper actin.
“green cnsumers”
make a difference
buy and use prducts friendly t the envirnment
reuse things fr the same purpse as befre
use things fr new purpses
recycle as many things
D Cmphrehensin
Replace the italicized wrds with infrmatin frm the article n page 35.
1. The writer says that it is in danger. _______________2. It is necessary fr all living things. ______________ 3. CO2 cmes frm burning them. _______________4. This causes sea level t rise.___________________5. It causes the surface f the sil t be easily destryed by rain.____________ 6. Many f ur habits cause this. _______________
ur wrld/the Earth
The atmsphere arund the Earth
fuels such as petrl and cal
The increasing temperature
Cutting dwn trees
Read the article again and circle the crrect answers.
1.Because f pllutin, _______. nt enugh sunlight is reaching Eartht much heat is leaving the Earth nt enugh CO2 is leaving the Earth2. If there are mre trees, the amunt f CO2 in the atmsphere will be ____. greater lessc. the same
3. We can help prtect the envirnment if we_______. change ur bad habits becme cnsumers buy mre prducts4. The purpse f the article is t make ______. peple d mre t prtect the envirnment mre peple becme cnsumersc. Peple learn mre abut the envirnment
The writer gives an example f a bad habit that causes pllutin. Can yu name sme ther bad habits that cause pllutin? (P 37)
Spit everywhere.
Always drive cars t ther places.
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?
Hw green are yu?
Grup wrk II
Try t finish the fllwing test.Let’s see wh is the greenest!
1. D yu recycle A: newspapers? 1’ B: tins? 1’ C: plastic bags? 2’2. When yu make a shrt jurney, d yu A: walk r cycle? 3’ B: g by car? 0’ C: g by public transprt? 1’
3. D yu make sure that lights and ther electrical equipment are switched ff when nt needed? A: nearly always 2’ B: seldm 1’ C: never 0’4. D yu use dispsable chpsticks? A: ften 0’ B: seldm 1’ C: never 2’
Language pints
1. warmer and “越来越温暖”，“比较级+and+比较级”表示程度的增加，意为“越来越……”。
eg.The weather here is warmer and warmer.这里的天气越来越温暖。Yur English is getting better and better你的英语正变得越来越好。
如果形容词或副词的比较级是在其前加mre构成的，那么表达“越来越……”这一含义时应用“ mre and mre+原级”结构Mary is mre and mre beautiful .玛丽越来越漂亮。
2. It is like the glass f a greenhuse.它像温室的玻璃。
be like= lk like 像；什么样子 like prep.像
如： 你妈妈长什么样子？-What is yur mther like?=What des yur mther lk like?-My mther is a tall wman with shrt hair.
50年后的世界会是什么样子？-What will the wrld be/lk like in 50 years? – Our life will be mre wnderful.
3. We shuld als recycle as many things as we can. 我们也应该尽我们所能地多重复利用东西。
如： 我们应该尽可能多的帮妈妈做家务。We shuld d ______ we t help ur mther.= We shuld d ____ __ t help ur mther.
as…as sb can=as…as pssible尽可能的
as much hmewrk as can
as much hmewrk as pssible
Pre-listening
Hw many envirnmental prblems are there in ur daily lives? Can yu name sme?
water pllutin
air pllutin
nise pllutin
litter pllutin
Desertificatin (沙漠化)
Gd listeners usually make gd ntes. Making ntes can help yu find key pints and facts. Write dwn the key infrmatin. It includes names, times, numbers, thughts and ideas.
Caring fr the envirnment
D nt try t write dwn everything. D nt use cmplete sentences. Instead, yu shuld write dwn the imprtant nuns and verbs. When yu make ntes, yu can use: symbls: e.g. +, , and . shrt frms, e.g. a.m., p.m., Sat. and Sun.
Listen t tw wmen calling int a radi prgramme t talk abut envirnmental prblems. Arrange the pictures belw in the crrect rder by writing the numbers 1-3 in the bxes.
B Listen t the recrding again and fill in the table belw. Write ne wrd in each blank.
D nt litter
building manager