2. Review some compound sentences:

　 (1) About 35% of the rubbish in Hong Kong can be recycled every year while the rest can’t.

　 (2) They work well, but they are slow and can’t run for long.

1. Learn a new word: towel

4. Homework:

T: Turn to your parents and your friends and try to find some other kinds of materials that can produce electricity.

板书设计：

Would you like to be a greener person?
Section C
electric (adj. )--electricity (n. )　　 1. Electric cars work well, but they are slow and can’t
electric car　　　　　　　　　　　　　　　　　　　　 run for long.
Maglev Train　　　　　　　　　　　　　　　　 2. The water trains in Wales use water to push one train
push … down　　　　　　　　　　　　　　　　　　 down a hill while pulling another train up the hill.
pull … up　　　　　　　　　　　　　　　　　　　 3. It’s a pity that it’s too expensive to use in most of China.

3. (要求学生在本课找出含有but, and, while的复合句，老师核对答案并板书。)

(依照文中的句子，说出类似的句子。)

T: Could you make sentences with them? Now, please have a try.

S6:　 I’d love to, but I have to finish my report first.

S7:　 He came up to her and she gave him a hug.

S8:　 Could you take care of my dog while I’m away.

S9:　 …

2. (和同桌一起讨论，列出环保的好习惯，鼓励学生列得越多越好。完成3。)

1. (填写表格，让学生学会如何节约能源，更加合理地利用能源，以增强学生的环保意识。)

T: Look at the form and think about things we should do every day and things we should not do to protect the environment, and what materials or waste things we can reuse, recycle and reduce.

Day
Thing
　
Name
 Mon.
 Tue.
 Wed.
Thur.
 Fri.
 Sat.
 Sun.
to do
 not to do
 to do
 not to do
 to do
 not to do
 to do
 not to do
 to do
 not to do
 to do
 not to do
 to do
 not to do
S1
 　
 　
 　
 　
 　
 　
 　
 　
 　
 　
 　
 　
 　
 　
S2
 　
 　
 　
 　
 　
 　
 　
 　
 　
 　
 　
 　
 　
 　
S3
 　
 　
 　
 　
 　
 　
 　
 　
 　
 　
 　
 　
 　
 　
S4
 　
 　
 　
 　
 　
 　
 　
 　
 　
 　
 　
 　
 　
 　

T: Discuss in groups and finish it as quickly as possible.

(几分钟后)

T:　 Who’d like to be a volunteer? Report it to the class.

S5: …

1. (小组讨论更多更新发电的方法，导入下文。)

T: We know that people can produce power in many ways, such as from coal, nuclear power and animal waste. There are also electric cars in many countries. Maglev Train is used in Japan. The Water trains in Wales use water to push a train down a hill while pulling another train up the hill. Now who can tell us some ways of producing electricity?

(板书push…down, pull…up)

S1: Use the sunlight to produce electricity.

S2: Use wind to produce electricity in the deserts.

S3: Use water in the sea to produce electricity.

S4: …

3. (通过学习1b的表格，为学生复述课文打下了基础。)

Step 3 　Consolidation 第三步 　巩固(时间:8分钟)

(根据1b表格，以问答形式复述1a课文。)

T: Let’s retell 1a according to the table in 1b by asking and answering. For example:

(1) T: What are the advantages and disadvantages of coal?

　 Ss: Cheap, dirty, dangerous.

(2) T: Can you say something about nuclear power?

　 Ss: Dangerous and expensive.

(3) T: What about animal waste?

　 Ss: Cheap but it smells terrible.

(4) T: And electric car?

　 Ss: Work well but can not run for long.

(5) T: What are the advantages and disadvantages of Maglev Train?

　 Ss: Quiet, fast, clean but too expensive.

(6) T: What about the water trains?

　 Ss: Very cheap but slow.

(7) T: What is the main idea of this passage? Can you give a proper title for this passage?

　 Ss: Some different ways of producing power.

Step 4 　Practice 第四步 　练习(时间:10分钟)
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