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

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优秀ppt课件，文件包含Unit3TheenvironmentPeriod1ReadingⅠpptx、Unit3TheenvironmentPeriod1ReadingⅠ导学单doc、Unit3TheenvironmentPeriod1ReadingⅠ教案doc、Unit3Theenvironmentmp3、地球气候变得异常印度下大雪日本下大冰雹mp4等5份课件配套教学资源，其中PPT共41页， 欢迎下载使用。

Read the new wrds
cncernatmspheretemperaturecnsumerfuelcalresultsea level
担心；忧虑大气层温度；气温消费者燃料煤结果海平面
naturesurfacesilfldhabitpurpseslutingvernmentrle mdel
自然界；大自然表面；表层土壤洪水；水灾习惯目的；用途解决办法政府楷模
guessincreasedestryrecycle
猜测（使）增长；增多；增加摧毁；毁灭回收利用
guessed – guessed – guessingincreased – increased – increasingdestryed – destryed – destrying recycled – recycled – recycling
greenlifelessprperfriendly
环境保护的；赞成环境保护的无生命的；无生物生长的正确的；恰当的无害的
greenhuse effectin dangeras a result fresult inmuntains ftake actinmake a differenceact as
温室效应在危险中由于造成；导致许多；大量采取行动有作用；有影响充当
Watch the vide and talk abut it.
Frm the vide, we can see because f the extremely bad weather, a lt f peple are hmeless, injured, and dead.What can we think f it?The envirnment prblems.
What d yu knw abut the greenhuse effect? Match the first half f the sentences in clumn A with the secnd half in clumn B. Write the crrect letters in the blanks.
Pre-reading
What d yu knw abut…?
What d yu knw abut the greenhuse effect? Match the first half f thesentences in clumn A with the secnd half in clumn B. Write the crrect letters in the blanks.
A1　There is an atmsphere2　It cntrls3　Hwever, we are plluting4　The gases cause the 　atmsphere5　The Earth is getting6　We call this
Ba　the greenhuse effect.b　the Earth with harmful gases.c　warmer and warmer.d　t keep in t much heat frm 　 the Sun.e　arund the Earth.f　the Earth’s temperature.
______ ______ ______ __________________
Read the sentences.1　There is an atmsphere arund the Earth.2　It cntrls the Earth’s temperature.3　Hwever, we are plluting the Earth with harmful gases.4　The gases cause the atmsphere t keep in t much heat frm 　 the Sun.5　The Earth is getting warmer and warmer.6　We call this the greenhuse effect.
Answer the questins.1What cntrls the Earth’s temperature?The atmsphere arund the Earth.2What are peple plluting the Earth with?Harmful gases.3What d we call the phenmenn that the Earth is getting warmer and warmer?The greenhuse effect.
What is the result f the greenhuse effect? In grups, discuss this with yur classmates.
Glaciers recede and sea levels rise.冰川消退，海平面上升
The climate zne mved nrthward, causing eclgical prblems.气候带北移，引发生态问题
Aggravating Reginal Disasters.加重区域灾害
Harm t human health.危害人类健康
Befre yu read
Lk at the pictures, the title, the intrductin and the sub-headings f the article n page 35.Then answer the questins belw.1What is the article mainly abut?2What prblems des the article discuss?3A cnsumer is smene wh buys and uses things. Can yu guess what a “green cnsumer” is?
Lk at the pictures, the title, the intrductin and the sub-headings f the article n page 35.Then answer the questins belw.
Title: The wrld is in danger
Our wrld is in danger. We must d smething t prtect the envirnment. But, what are the main prblems we face?
The greenhuse effectCutting dwn frestsBad habits
Intrductin:
sub-headings:
1What is the article mainly abut?Envirnmental prblems.2What prblems des the article discuss?The greenhuse effect, cutting dwn frest sand bad habits.3A cnsumer is smene wh buys and uses things. Can yu guess what a “green cnsumer” is?A “green cnsumer” is smene wh nly buys and uses things friendly t the envirnment.
While-reading
Listen, read and understand.
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. 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.
Presentatin
Language pints.
1. living things: 生物2. It is like the glass f a greenhuse, letting sunlight in and keeping heat frm getting ut. let in: 让…进入，放进keep … frm ding sth = stp/prevent … frm ding sth 阻止…做…Translate:她咬住嘴唇不哭。She bit her lip t keep frm crying.
3. …, the Earth wuld be the same as the Mn-cld and lifeless.the same as: 和…一样Translate:我要一个和你一样的。I'd like ne the same as yurs. 4. …, and causes it t keep in t much heat. cause sb. t d sth.: 导致某人做某事Translate:什么也不能使他改变主意。Nthing can cause him t change his mind.
5. As a result f the greenhuse effect, the Earth‘s temperature is …Cmpare:as a result f = because f = because f the effect f 因为，由于as a result = s = therefre = because f that 所以Translate:(1) 她由于受伤而死亡。She died as a result f her injuries. (2) 他犯了个大错，结果丢了工作。He made ne big mistake, and as a result, lst his jb.
Cutting dwn frestsEvery year, we destry nature by cutting dwn huge areas f frests. This makes the greenhuse effect wrse because trees take in carbn dixide 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.
6. take in carbn dixide: 吸收二氧化碳 prduce xygen: 产生氧气7. This can result in flds and even mre damage t the envirnment.result in = cause = lead t = make sth. happen 导致Translate:强迫永远不会使他们信服。Cmpulsin will never result in cnvincing them.
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 fr the 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.
8. This creates muntains f rubbish and pllutes ur land and seas. Cmpare:muntains f + (U/C) = a lt f = lts f = a large quantity fmuntains f + (C) = a very large number f + (C)muntains f + (U) = a great deal f + (U) = a large amunt f + (U)9. thrw away: 扔掉10. prtect the envirnment: 保护环境
11. We shuld be different frm many cnsumers and becme …be different frm: 和…不同Translate:各个地区的社会风俗很不相同。Scial custms are greatly different frm area t area. 12. We shuld als recycle as many things as we can. as … as sb. can = as… as pssible 尽可能的…Translate:所有人请尽快进入商场！Everyne, just get t the mall as quick as yu can!
1　As far as we knew, there was n cause fr _______(担心). 2　Yu can really see the wrld‘s ___________(大气层) up there. 3　The ___________(气温) must be in the nineties tday. 4　We are living in a ________(消费者) culture. 5　They had enugh _____(燃料) t see the winter ut. 6　I put mre _____(煤) n the fire.
根据提示或句意补全句子。
temperature
Pst-reading
The wrds in italics explain the meanings f sme wrds n page 35. Find these wrds t cmplete the sentences. Change their frms if necessary.
1_____________ the fld, many peple were left hmeless. (because f the effect f)2The wrld ppulatin will cntinue t __________ fr many years t cme. (t becme greater in number)3The muntain is high. It is 3,000 meters abve __________. (the height f the cean)
As a result f
4Man first walked n the ____________ f the Mn in 1969. (the tp part f an area f land)5There were ____________ tys in the shps during the Christmas hliday. (a very large number f)
Cmplete the cnversatin belw with the wrds frm the bx. Change their frms if necessary.
Mark:The burning and cutting dwn f trees all ver the wrld__________ the lss f ur frests. Why d yu think peple d that?Jenny:The wrld’s ppulatin is grwing fast. That’s prbably the main reasn. Peple need land t live n.
in danger　make a difference　take actin　increase　result in
Mark:I suppse s. But frests are imprtant t us. Trees take in CO2. When s many trees are being cut dwn, the CO2 in the Earth’s atmsphere __________. This causes the temperaturet rise and puts the wrld __________. Jenny:T ________________, we need t stp cutting dwn s many trees, and we shuld use as few wd prducts as pssible.Mark:Yu’re right. Everyne shuld _________ t prtect the Earth.
make a difference
Hw t be a green cnsumer?
Be green cnsumers⬇1. Buy and use prducts friendly t the envirnment2. Recycle as many things as we can3. Reuse things fr different purpses⬇We can make a difference
1. The news reprted that the plane crash resulted ___ hundreds f deaths.2. Parents shuld act ____ rle mdels in their daily lives.3. The beautiful are nt always the same ____ the gd.4. He is a man between sixty ____ seventy.5. ___ is impssible t master English in a mnth r tw.
Cmplete the sentences.
Key wrds: cncern; atmsphere; temperature; cnsumer; fuel; cal; result; sea level; nature; surface; sil; fld; habit; purpse; slutin; gvernment; rle mdel; guess; increase; destry; recycle; green; lifeless; prper; friendly;Key phrases:greenhuse effect; in danger; as a result f; result in; muntains f; take actin; make a difference; act as.