仁爱版九年级上Unit2Topic3SectionC
合集下载
- 1、下载文档前请自行甄别文档内容的完整性，平台不提供额外的编辑、内容补充、找答案等附加服务。
- 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
- 3、如文档侵犯您的权益，请联系客服反馈,我们会尽快为您处理(人工客服工作时间：9:00-18:30)。
a
第13页/共25页
______ In China, the best-known maglev train is the German-built one in Shanghai. It takes people 30km to the airport in just 7 minutes and reaches a top speed of 431 km per hour. It is quiet and quick. There is no wheel noise, because there are no wheels. Maglev trains are very energy efficient and do not pollute the air. However, maglev guide paths are much more expensive than traditional street railways.
Answer the following questions according to 1a.
第15页/共25页
Read 1a again and fill out the following table.
Way to produce power
Advantage
Disadvantage
biogas
Choose the right picture for each paragraph.
第12页/共25页
______ Electric vehicles were developed in the 1990s. Now there are electric vehicles in many countries. They are very efficient and cost very little to run. Although electric vehicles produce no pollution, there will be an increase in electricity needs if they are widely used.
第11页/共25页
c
______China is one of the first countries in the world to use biogas technology. Farmers recycle straw, grass and animal waste to make biogas. This renewable energy is used in people’s everyday life.
Guessing game
第7页/共25页
…people produce power from coal, but it is very dirty and causes acid rain.
Guessing game
第8页/共25页
Nuclear power is clean but it is very dangerous.
Good Habits
1. Turn off the lights when you leave a room.
2. Walk or ride a bike instead of taking a bus or a taxi.
3.Take a cloth bag when you go shopping.
第23页/共25页
Good-bye!
第24页/共25页
Guessing game
第5页/共25页
More and more people are interested in electric cars.
Guessing game
第6页/共25页
The maglev train in Shanghai uses magnets.The magnets push the train forward.
Guessing game
第9页/共25页
1a
Choose the right picture for each paragraph.
第10页/共25页
In many countries, people produce power from coal, but it is very dirty and causes acid rain. Some countries use nuclear energy to produce power. However, nuclear power can be very dangerous. To solve the energy problem, people all over the world are looking all the time for new ways to produce power.
( b )
( c )
( d )
( a )
2a
第21页/共25页
What habits are good for the environment? List as many as you can. The more you list, the greener you are.
acid rain
nuclear
renewable
electric
efficient
电力；动力；力
酸雨
可更新的
第4页/共25页
Wind is used for producing electricity in many places.
Look at the following pictures and guess the meaningof the underlined word.
1. _____ it’s raining hard, he keeps on working outside.2. Kangkang can play the voilin, ______ I can’t.3. Mr. Lin is very kind _____ he is very humorous, too.4. The suit fits me well _____ I can’t afford it.
4.Don't use plastic bags.
3
第22页/共25页
Homework:
Copy the words and phrases.抄写单词和词组。2. Study Case:导学案Unit 2 Topic 3 Section C3. Recite 1a Passage.背诵1a课文。
much more expensive than traditional trains.
1b
第16页/共25页
power stations
第17页/共25页
the movement of water
第18页/共25页
the wind power
第19页/共25页
solar energy
第
maglev train
renewable
efficient,cheap, no pollution
quiet, quick,energy efficient, no pollution
It will cause an increase in electricity needs.
b
第14页/共25页
1. Why isn’t coal a good material?2. What is the disadvantage of using nuclear power?3. What do you think of electric cars?4. What do you think of the maglev train?
Though
while
and
but
Fill in the blanks using but, and, though and while.
Revision:
第1页/共25页
What new ways have been invented to produce power?
electric vehicle
biogas technology
第2页/共25页
What new ways have been invented to produce power?
maglev train
water battery
第3页/共25页
Look up these words in a dictionary.
power
Because it is very dirty and causes acid rain.
Because it can be very dangerous.
It is quiet and quick.
They are very efficient and cost very little to run.
a. There are more than 3 000 power stations in the world that produce electricity by burning garbage to heat water.b. People use the movement of water to produce electricity.c. Wind is used for producing electricity in many places.d. People produce electricity from the sun.
第13页/共25页
______ In China, the best-known maglev train is the German-built one in Shanghai. It takes people 30km to the airport in just 7 minutes and reaches a top speed of 431 km per hour. It is quiet and quick. There is no wheel noise, because there are no wheels. Maglev trains are very energy efficient and do not pollute the air. However, maglev guide paths are much more expensive than traditional street railways.
Answer the following questions according to 1a.
第15页/共25页
Read 1a again and fill out the following table.
Way to produce power
Advantage
Disadvantage
biogas
Choose the right picture for each paragraph.
第12页/共25页
______ Electric vehicles were developed in the 1990s. Now there are electric vehicles in many countries. They are very efficient and cost very little to run. Although electric vehicles produce no pollution, there will be an increase in electricity needs if they are widely used.
第11页/共25页
c
______China is one of the first countries in the world to use biogas technology. Farmers recycle straw, grass and animal waste to make biogas. This renewable energy is used in people’s everyday life.
Guessing game
第7页/共25页
…people produce power from coal, but it is very dirty and causes acid rain.
Guessing game
第8页/共25页
Nuclear power is clean but it is very dangerous.
Good Habits
1. Turn off the lights when you leave a room.
2. Walk or ride a bike instead of taking a bus or a taxi.
3.Take a cloth bag when you go shopping.
第23页/共25页
Good-bye!
第24页/共25页
Guessing game
第5页/共25页
More and more people are interested in electric cars.
Guessing game
第6页/共25页
The maglev train in Shanghai uses magnets.The magnets push the train forward.
Guessing game
第9页/共25页
1a
Choose the right picture for each paragraph.
第10页/共25页
In many countries, people produce power from coal, but it is very dirty and causes acid rain. Some countries use nuclear energy to produce power. However, nuclear power can be very dangerous. To solve the energy problem, people all over the world are looking all the time for new ways to produce power.
( b )
( c )
( d )
( a )
2a
第21页/共25页
What habits are good for the environment? List as many as you can. The more you list, the greener you are.
acid rain
nuclear
renewable
electric
efficient
电力；动力；力
酸雨
可更新的
第4页/共25页
Wind is used for producing electricity in many places.
Look at the following pictures and guess the meaningof the underlined word.
1. _____ it’s raining hard, he keeps on working outside.2. Kangkang can play the voilin, ______ I can’t.3. Mr. Lin is very kind _____ he is very humorous, too.4. The suit fits me well _____ I can’t afford it.
4.Don't use plastic bags.
3
第22页/共25页
Homework:
Copy the words and phrases.抄写单词和词组。2. Study Case:导学案Unit 2 Topic 3 Section C3. Recite 1a Passage.背诵1a课文。
much more expensive than traditional trains.
1b
第16页/共25页
power stations
第17页/共25页
the movement of water
第18页/共25页
the wind power
第19页/共25页
solar energy
第
maglev train
renewable
efficient,cheap, no pollution
quiet, quick,energy efficient, no pollution
It will cause an increase in electricity needs.
b
第14页/共25页
1. Why isn’t coal a good material?2. What is the disadvantage of using nuclear power?3. What do you think of electric cars?4. What do you think of the maglev train?
Though
while
and
but
Fill in the blanks using but, and, though and while.
Revision:
第1页/共25页
What new ways have been invented to produce power?
electric vehicle
biogas technology
第2页/共25页
What new ways have been invented to produce power?
maglev train
water battery
第3页/共25页
Look up these words in a dictionary.
power
Because it is very dirty and causes acid rain.
Because it can be very dangerous.
It is quiet and quick.
They are very efficient and cost very little to run.
a. There are more than 3 000 power stations in the world that produce electricity by burning garbage to heat water.b. People use the movement of water to produce electricity.c. Wind is used for producing electricity in many places.d. People produce electricity from the sun.