仁爱九年级年级课件

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电

3、力；电力；动力；力动力；力酸雨酸雨原子核的，原子核的，原子能的；原子能的；核动力的核动力的可更新的可更新的电动的，电动的，用电的用电的效率高的；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.电力；动力；力acid rain酸雨nuclearadj.原子核的，原子能的；核动力的biogasn.沼气technologyn.技术strawn.（收割后干燥的）禾杆，麦秆，稻草electricadj.电动的，用电的efficientadj.效率高的；

5、有能力的maglev train磁悬浮列车perprep. 每，每一wheeln.轮，车轮，轮子guiden.向导，导游；指南，手册steeln.钢，钢铁movementn.运动；活动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从从获得能量获得能量一直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 被广泛应用被广泛应用 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.电动车辆非常高效并且耗能极少电动车辆非常高效并且耗能极少.尽管电动车辆不会产生污染尽管电动车辆不会产生污染,但如果被广泛使但如果被广泛使用用,就会增加对电的需求就会增加对电的需求. 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.仅用仅用7分钟这辆车就可将人们送到分钟这辆车就可将人们送到30千米以外的机场千米以外的机场.然而然而,悬浮轨道的建设费用却远远高于传统铁悬浮轨道的建设费用却远远高于传统铁轨费用轨费用.3.Practise but, however, while 这些连词或副词均含“但是，可是，然而，而”之意。 but口语常用词，语气较强，泛指与前述情况相反。 however表转折关系，语气稍弱于but，连接性也弱一些，因而常作插入语。 while表对比，一般可与whereas换用，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.