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英语仁爱科普版Topic 3 What can we do to protect the environment?示范课课件ppt
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这是一份英语仁爱科普版Topic 3 What can we do to protect the environment?示范课课件ppt，共34页。PPT课件主要包含了biogas，used，use，for，Summary，Assignment等内容，欢迎下载使用。
Wind is used fr prducing electricity in many places.
Lk at the fllwing pictures and guess the meaningf the underlined wrd.
electricity n. 电，电流
Nuclear pwer is clean but it is very dangerus.
Lk at the fllwing pictures and guess the meaning f the underlined wrd.
nuclear 原子核的，原子能的
…peple prduce pwer frm cal, but it is verydirty and causes acid rain.
Lk at the fllwing pictures and guess the meaningf the underlined wrds.
pwer n.动力，力量
acid rain 酸雨
electric (adj.) — electricity (n.)
It’s an electric car. It wrks well, but its disadvantage is that it’ slw and Can’t run fr lng.
It’s a maglev train. Its advantages are quiet, fast and clean, but it’s t expensive.
D yu knw it ?
China is ne f the first cuntries in the wrld t use bigas technlgy .
Read and remember these wrds.
原子核的，原子能的；核动力的
Match the wrds with the pictures n Page 48 (1b).
A. acid rain B. nuclear energy C. bigas
adj.原子核的，原子能的
1a Read and understand. Lk at the pictures. D yu knw what they are? Chse the right picture fr each paragraph.
paragraph 2
paragraph 3
Paragraph 4
Read Paragraph 1 again, and then mark True (T) r False (F).
( ) It’s gd that peple prduce pwer frm cal. ( ) Nuclear pwer is dangerus. S we can’t use it. ( ) T slve the energy prblem, peple all ver the wrld are lking fr new ways t prduce pwer.
Paragraph 1
In many cuntries, peple prduce pwer frm cal, but it is very dirty and causes acid rain. Sme cuntries use nuclear energy t prduce pwer. Hwever, nuclear pwer can be very dangerus. T slve the energy prblem, peple all ver the wrld are lking fr new ways t prduce pwer.
Paragraph 2
What d farmers use t make bigas?It is the bigas perfect ? Why?
China is ne f the first cuntries in the wrld t use bigas technlgy. Farmers recycle straw, grass and animal waste t make bigas. This renewable energy is used in peple’s everyday lives. Its key disadvantage is that the prcess requires a lng time( up t 30 days) and the cst is high
They recycle straw, grass, and animal waste t make bigas.
N, it isn’t. Because its key disadvantage is that the prcess requires a lng time (up t 30 days) and the cst is high.
Paragraph 3
Electric vehicles were __________ in the 1990s. On April 11, 2010, a new kind f electric vehicle _______ “Yezi” was shwn in the 2010 Shanghai Wrld Exp. It prduces _________ frm the sun, the wind and CO2. It can nt nly prtect the envirnment but als _____ energy. It’s t small t hld many peple, but _______ mdels will be develped in the near future.
develp, electric, name, save, large
electricity
1.去30公里以外的飞机场只需花费人们七分钟的时间。
2.火车最高时速能够达到每小时431公里。
Find ut the English versin f the tw sentences.
In China, the best-knwn maglev train is the German-built ne in Shanghai. It takes peple just 7 minutes t g t the airprt 30 km away and reaches a tp speed f 431 km per hur. It is quiet and quick. There is n wheel nise, because there are n wheels. Maglev trains are very energy efficient and d nt pllute the air. Hwever, maglev guide paths are much mre expensive than traditinal steel railways.
It takes peple just 7 minutes t g t the airprt 30 km away.
The train can reach a tp speed f 431 km per hur.
1c Read 1a again and cmplete the table.
lng prcess and high cst fr its building
save energy, n pllutin
t small t hld many peple
quiet, quick, energy-efficient, n pllutin
much mre expensive than traditinal steel railways
1a Watch and read
Find ut the key phrases in 1a
1. lk fr new ways2. in the 1990s3. ne f the first cuntries4. peple all ver the wrld5. in peple’s everyday/daily lives6. in the near future7. reach a tp speed8. much mre expensive9. use… t d 10. be used fr ding/ t d sth.
1.寻找新方法2.在20世纪90年代3.首批国家之一4.全世界的人5. 在人们的日常生活中6.在不久的将来7.达到最高时速8.更贵得多9.用……来做10. 被用作
Language pints
Sme cuntries use nuclear energy t prduce pwer.思考：使用某物来做某事___________________/___________________练习：a.在过去人们使用竹子写字.Peple _______ bamb ___ ______ with in the past. b.人们用风发电。Peple _____ wind _______ prducing electricity.
use sth. t d sth.
use sth. fr ding.
t write
3. The train can reach a tp speed f 431 km per hur. 点拨：reach a speed f+具体速度 ---达到某个速度链接：at a speed f + 具体速度----以某个速度, 可用high, lw, full等形容词修饰speed 。练习：a.北京至天津线火车时速达到每小时300千米。Beijing-Tianjin train ______ ___ _______ ____ 300 km per hur.
reaches a speed f
2a Read the passage belw and match the pictures with the sentences. Then discuss in detail the use f ne energy surce.
The sun, wind, waves and heat frm deep in the earth are energy surces. They will never run ut s they are called renewable surces. In 2011, abut 16% f energy used wrldwide came frm renewable surces. The use f it is increasing rapidly each year.
deep adj.深的，厚的 adv.深深地， 在深处
run ut 用完，耗尽E.g. He has run ut f fd, s his children are hungry.
run ut /run ut f 用完，耗尽 run ut 主语为物，且无被动。 run ut f 主语为人 我们的食物已经用完了。Our fd has already run ut.=We have already run ut f the fd.
Wind can prduce electricity in many places. Peple use sunlight t prduce electricity. Sea waves are used fr prducing electricity. Peple use ht water r steam frm deep in the earth t prduce electricity and heat fr factries, schls and hmes.
2b Take ntes n yur discussin and write a passage with them.
Yu may begin like this: Sunlight can prduce a lt f energy. Peple began t use the energy frm the sunlight in different ways many years ag…
Sunlight can prduce a lt f energy. Peple began t use the energy frm the sunlight in different ways many years ag. We can use it t warm the huse in the winter, t heat the water fr baths, and t prduce electricity. What’s mre, we can even use it t run vehicles directly in the near future. As is knwn t us, the energy frm the sunlight has a lt f advantages. Fr example, it is clean, renewable and nn-plluting. Besides, it des n harm t ur nature. S we’d better use it as much as pssible.
Yu can write it like this:
We learn: 1. Sme wrds: technlgy, wheel, steel, require, German, guide , deep 2.Sme phrases: run ut 3.Sme sentences: (1)In many cuntries, peple prduce pwer frm cal, but it is very dirty and causes acid rain. (2)They will never run ut s they are called renewable surces.We can: Talk abut the advantages and disadvantages f sme kinds f energy.
Read 1a again and try t retell it.Memrize the useful expressins and key sentences which we learn tday.3. Finish Sectin C in yur wrkbk.
cal--- dirty, acid nuclear energy --- dangerus electric vehicles --- the sun, the wind andCO2---prtect the envirnment, save energy, smallmaglev train ---German-built, quiet, quick, n wheel nise, energy-efficient, nt pllute the air bigas technlgy – straw, grass and animal waste, everyday lives, require, the high cst
Wind is used fr prducing electricity in many places.
Lk at the fllwing pictures and guess the meaningf the underlined wrd.
electricity n. 电，电流
Nuclear pwer is clean but it is very dangerus.
Lk at the fllwing pictures and guess the meaning f the underlined wrd.
nuclear 原子核的，原子能的
…peple prduce pwer frm cal, but it is verydirty and causes acid rain.
Lk at the fllwing pictures and guess the meaningf the underlined wrds.
pwer n.动力，力量
acid rain 酸雨
electric (adj.) — electricity (n.)
It’s an electric car. It wrks well, but its disadvantage is that it’ slw and Can’t run fr lng.
It’s a maglev train. Its advantages are quiet, fast and clean, but it’s t expensive.
D yu knw it ?
China is ne f the first cuntries in the wrld t use bigas technlgy .
Read and remember these wrds.
原子核的，原子能的；核动力的
Match the wrds with the pictures n Page 48 (1b).
A. acid rain B. nuclear energy C. bigas
adj.原子核的，原子能的
1a Read and understand. Lk at the pictures. D yu knw what they are? Chse the right picture fr each paragraph.
paragraph 2
paragraph 3
Paragraph 4
Read Paragraph 1 again, and then mark True (T) r False (F).
( ) It’s gd that peple prduce pwer frm cal. ( ) Nuclear pwer is dangerus. S we can’t use it. ( ) T slve the energy prblem, peple all ver the wrld are lking fr new ways t prduce pwer.
Paragraph 1
In many cuntries, peple prduce pwer frm cal, but it is very dirty and causes acid rain. Sme cuntries use nuclear energy t prduce pwer. Hwever, nuclear pwer can be very dangerus. T slve the energy prblem, peple all ver the wrld are lking fr new ways t prduce pwer.
Paragraph 2
What d farmers use t make bigas?It is the bigas perfect ? Why?
China is ne f the first cuntries in the wrld t use bigas technlgy. Farmers recycle straw, grass and animal waste t make bigas. This renewable energy is used in peple’s everyday lives. Its key disadvantage is that the prcess requires a lng time( up t 30 days) and the cst is high
They recycle straw, grass, and animal waste t make bigas.
N, it isn’t. Because its key disadvantage is that the prcess requires a lng time (up t 30 days) and the cst is high.
Paragraph 3
Electric vehicles were __________ in the 1990s. On April 11, 2010, a new kind f electric vehicle _______ “Yezi” was shwn in the 2010 Shanghai Wrld Exp. It prduces _________ frm the sun, the wind and CO2. It can nt nly prtect the envirnment but als _____ energy. It’s t small t hld many peple, but _______ mdels will be develped in the near future.
develp, electric, name, save, large
electricity
1.去30公里以外的飞机场只需花费人们七分钟的时间。
2.火车最高时速能够达到每小时431公里。
Find ut the English versin f the tw sentences.
In China, the best-knwn maglev train is the German-built ne in Shanghai. It takes peple just 7 minutes t g t the airprt 30 km away and reaches a tp speed f 431 km per hur. It is quiet and quick. There is n wheel nise, because there are n wheels. Maglev trains are very energy efficient and d nt pllute the air. Hwever, maglev guide paths are much mre expensive than traditinal steel railways.
It takes peple just 7 minutes t g t the airprt 30 km away.
The train can reach a tp speed f 431 km per hur.
1c Read 1a again and cmplete the table.
lng prcess and high cst fr its building
save energy, n pllutin
t small t hld many peple
quiet, quick, energy-efficient, n pllutin
much mre expensive than traditinal steel railways
1a Watch and read
Find ut the key phrases in 1a
1. lk fr new ways2. in the 1990s3. ne f the first cuntries4. peple all ver the wrld5. in peple’s everyday/daily lives6. in the near future7. reach a tp speed8. much mre expensive9. use… t d 10. be used fr ding/ t d sth.
1.寻找新方法2.在20世纪90年代3.首批国家之一4.全世界的人5. 在人们的日常生活中6.在不久的将来7.达到最高时速8.更贵得多9.用……来做10. 被用作
Language pints
Sme cuntries use nuclear energy t prduce pwer.思考：使用某物来做某事___________________/___________________练习：a.在过去人们使用竹子写字.Peple _______ bamb ___ ______ with in the past. b.人们用风发电。Peple _____ wind _______ prducing electricity.
use sth. t d sth.
use sth. fr ding.
t write
3. The train can reach a tp speed f 431 km per hur. 点拨：reach a speed f+具体速度 ---达到某个速度链接：at a speed f + 具体速度----以某个速度, 可用high, lw, full等形容词修饰speed 。练习：a.北京至天津线火车时速达到每小时300千米。Beijing-Tianjin train ______ ___ _______ ____ 300 km per hur.
reaches a speed f
2a Read the passage belw and match the pictures with the sentences. Then discuss in detail the use f ne energy surce.
The sun, wind, waves and heat frm deep in the earth are energy surces. They will never run ut s they are called renewable surces. In 2011, abut 16% f energy used wrldwide came frm renewable surces. The use f it is increasing rapidly each year.
deep adj.深的，厚的 adv.深深地， 在深处
run ut 用完，耗尽E.g. He has run ut f fd, s his children are hungry.
run ut /run ut f 用完，耗尽 run ut 主语为物，且无被动。 run ut f 主语为人 我们的食物已经用完了。Our fd has already run ut.=We have already run ut f the fd.
Wind can prduce electricity in many places. Peple use sunlight t prduce electricity. Sea waves are used fr prducing electricity. Peple use ht water r steam frm deep in the earth t prduce electricity and heat fr factries, schls and hmes.
2b Take ntes n yur discussin and write a passage with them.
Yu may begin like this: Sunlight can prduce a lt f energy. Peple began t use the energy frm the sunlight in different ways many years ag…
Sunlight can prduce a lt f energy. Peple began t use the energy frm the sunlight in different ways many years ag. We can use it t warm the huse in the winter, t heat the water fr baths, and t prduce electricity. What’s mre, we can even use it t run vehicles directly in the near future. As is knwn t us, the energy frm the sunlight has a lt f advantages. Fr example, it is clean, renewable and nn-plluting. Besides, it des n harm t ur nature. S we’d better use it as much as pssible.
Yu can write it like this:
We learn: 1. Sme wrds: technlgy, wheel, steel, require, German, guide , deep 2.Sme phrases: run ut 3.Sme sentences: (1)In many cuntries, peple prduce pwer frm cal, but it is very dirty and causes acid rain. (2)They will never run ut s they are called renewable surces.We can: Talk abut the advantages and disadvantages f sme kinds f energy.
Read 1a again and try t retell it.Memrize the useful expressins and key sentences which we learn tday.3. Finish Sectin C in yur wrkbk.
cal--- dirty, acid nuclear energy --- dangerus electric vehicles --- the sun, the wind andCO2---prtect the envirnment, save energy, smallmaglev train ---German-built, quiet, quick, n wheel nise, energy-efficient, nt pllute the air bigas technlgy – straw, grass and animal waste, everyday lives, require, the high cst
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