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We should stop… (doing)句型中动词 -ing的用法。
Teaching procedure:
Step 1 Warming up
Greeting and free talk about colours.
Step 2 Lead in
Show “地球仪”，引出“The Earth”，并板书。
Step 3 Presentation and Practice
Learn the new words: part, forest, land, ocean.
T:How many colours are there on the Earth? What are they?
T:There are many different parts on the Earth.
T:(Point to green)green part( 板书part)
T: What are the green parts?
S: They are forests.
T: The green parts are forests. (同上学习land, ocean)
Write the words in the blacks.(完成Step 1)Read the sentences together.
Read and answer
T: The children in Ms Guo’s class are talking about the Earth.Let’s listen.
T: What’s wrong with the Earth now? Read this dialogue again and try to find the answer.(完成Step 2)
S1: The Earth was clean and beautiful in the past, but now some parts are dirty.
Read and discuss in groups
T: What should we do to help the Earth? Now read the dialogue again and find the answers, then discuss in groups.（完成Step 3）
4. Learn “rubbish, so many, plastic bag”(课件出示We should stop …并板书rubbish)
5. T: We know “should + 动词原形”.Read the sentences.What can you find?
Choose and fill.
Step 4 Consolidation and Summary
Act it out
2. Summary
Step 5 Homework
1. Listen to and read Student’s Book page 80.
2. Finish “Think and write” on page 85.