仁愛九年級年級課件

1、Unit 2 Topic 3 What kinds of things can we do to protect the environment?Section C1. _ its raining hard, he keeps on working outside.2. Kangkang can play the voilin, _ I cant.3. Mr. Lin is very kind _ he is very humorous, too.4. The suit fits me well _ I cant afford it.Though while and but Fill in t

2、he blanks using but, and, though and while.Revision:What new ways have been invented to produce power?electric vehiclebiogas technologyWhat new ways have been invented to produce power?maglev trainwater batteryLook up these words in a dictionary. power acid rain nuclear renewable electric efficient電

3、力；電力；動(dòng)力；力動(dòng)力；力酸雨酸雨原子核的，原子核的，原子能的；原子能的；核動(dòng)力的核動(dòng)力的可更新的可更新的電動(dòng)的，電動(dòng)的，用電的用電的效率高的；效率高的；有能力的有能力的Wind is used for producing electricity in many places.Look at the following pictures and guess the meaningof the underlined word.More and more people are interested in electric cars.The maglev train in Shanghai uses

4、 magnets.The magnets push the train forward.people produce power from coal, but it is very dirty and causes acid rain.Nuclear power is clean but it is very dangerous.powern.電力；動(dòng)力；力acid rain酸雨nuclearadj.原子核的，原子能的；核動(dòng)力的biogasn.沼氣technologyn.技術(shù)strawn.（收割后干燥的）禾桿，麥稈，稻草electricadj.電動(dòng)的，用電的efficientadj.效率高的；

5、有能力的maglev train磁懸浮列車perprep. 每，每一wheeln.輪，車輪，輪子guiden.向?qū)?，?dǎo)游；指南，手冊steeln.鋼，鋼鐵movementn.運(yùn)動(dòng)；活動(dòng)1a1aChoose the right picture for each paragraph.Choose the right picture for each paragraph of 1a.abcChina is one of the first countries in the world to use biogas technology. Farmers recycle straw, grass and

6、 animal waste to make biogas. This renewable energy is used in peoples everyday life.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 a

7、n increase in electricity needs if they are widely used. In China, the best-known maglev train is the German-built one in Shanghai. It takes people just 7 minutes to go to the airport 30 km away and reaches a top speed of 431 km per hour. It is quiet and quick. There is no wheel noise, because there

8、 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 steel railways.1. Why isnt coal a good material?2. What is the disadvantage of using nuclear power?Because it is very dirty and causes acid rain. B

9、ecause it can be very dangerous.Read paragraph 1 and answer the two questions: 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,

10、people all over the world are looking all the time for new ways to produce power.abc從從獲得能量獲得能量一直Read paragraph 2 and answer the question: How do farmers make biogas? Farmers recycle straw, grass and animal waste to make biogas.c_China is one of the first countries in the world to use biogas technolo

11、gy. Farmers recycle straw, grass and animal waste to make biogas. This renewable energy is used in peoples everyday life.abcChoose the right picture for each paragraph.Paragraph3What do you think of electric cars? They are very efficient and cost very little to run._ Electric vehicles were developed

12、 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.aabcbe widely used 被廣泛應(yīng)用被廣泛應(yīng)用 Paragraph3 Read and translate t

13、hem into English 1. They are very efficient and cost very little to run. 2. Although electric vehicles produce no pollution, there will be an increase in electricity needs if they are widely used.電動(dòng)車輛非常高效并且耗能極少電動(dòng)車輛非常高效并且耗能極少.盡管電動(dòng)車輛不會(huì)產(chǎn)生污染盡管電動(dòng)車輛不會(huì)產(chǎn)生污染,但如果被廣泛使但如果被廣泛使用用,就會(huì)增加對電的需求就會(huì)增加對電的需求. What do you t

14、hink of the maglev train? It is quiet and quick._ 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.

15、Maglev trains are very energy efficient and do not pollute the air. However, maglev guide paths are much more expensive than traditional street railways.babc Paragraph4 Read and translate them into English 1.It takes people just 7 minutes to go to the airport 30 km away.2. However, maglev guide path

16、s are much more expensive than traditional street railways.僅用僅用7分鐘這輛車就可將人們送到分鐘這輛車就可將人們送到30千米以外的機(jī)場千米以外的機(jī)場.然而然而,懸浮軌道的建設(shè)費(fèi)用卻遠(yuǎn)遠(yuǎn)高于傳統(tǒng)鐵懸浮軌道的建設(shè)費(fèi)用卻遠(yuǎn)遠(yuǎn)高于傳統(tǒng)鐵軌費(fèi)用軌費(fèi)用.3.Practise but, however, while 這些連詞或副詞均含“但是，可是，然而，而”之意。 but口語常用詞，語氣較強(qiáng)，泛指與前述情況相反。 however表轉(zhuǎn)折關(guān)系，語氣稍弱于but，連接性也弱一些，因而常作插入語。 while表對比，一般可與whereas換用，但程度弱一些

17、。 。 Though,but,and while 1Though its raining hard , he keeps on working in the field . 2.Kangkang can solve the program, but I cant. 3.Coal is very dirty and it is dangerous,because it causes acid rain.Read 1a again and fill out the following table.Way to produce powerAdvantageDisadvantagebiogaselec

18、tric vehiclemaglev trainrenewable efficient,cheap, no pollution quiet, quick,energy efficient, no pollution It will cause an increase in electricity needs. much more expensive than traditional trains. 1b1bpower stationsthe movement of waterthe wind powersolar energya. There are more than 3 000 power stations in the world that produce electricity by burning garbage to heat water.