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1.ÄÜÌý¡¢Ëµ¡¢¶Á¡¢Ð´±¾¿ÎµÄºËÐĴʻ㣺earth, forest , ocean ,

¡¡¡¡land, part, rubbish , so many

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¡¡¡¡We should stop cutting down so many trees.

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Step¢ñ.Warm up and revision£¨ÈÈÉíÓ븴ϰ£©

1.Sing a song.

2.Do some warming-up exercises.

Step ¢ò.Presentation and practice£¨³ÊÏÖÐÂÓïÑÔ֪ʶºÍÁ·Ï°£©

1.Lead in.

¡¡¡¡T: Look£¡ What is it?

¡¡¡¡Ss: It??s earth.

¡¡¡¡T: What??s on the Earth? What do you see?

¡¡¡¡Ss: I see forest. / I see land./ I see oceans.

¡¡¡¡T: Yes. Today we are going to learn more about the Earth.

2.Ask and answer.

¡¡¡¡T: What do you know about the Earth?

¡¡¡¡Ss: We get wood from trees. We get fruit from trees.

¡¡¡¡T: What do we use wood for?

¡¡¡¡S1: The Earth is round.

¡¡¡¡S2: There are animals, people and plants.

3.Learn to say and use the words.

¡¡¡¡The students say and spell the words.

4.Watch the cartoon and talk about the Earth.

¡¡¡¡T: What are the green parts?

¡¡¡¡Ss: They are forests.

¡¡¡¡T: How about the brown parts?

¡¡¡¡Ss: It??s land.

¡¡¡¡T: What??s wrong with the Earth now? Read this dialogue again and try to find the answer.

¡¡¡¡S1: The Earth was clean, but now some parts are dirty.

¡¡¡¡T: What should we do to help the Earth?

¡¡¡¡Ss: We should keep the Earth clean.

5.The pupils read the text carefully. And then try to do some exercises.

Step ¢ô.Consolidation£¨ÍØÕ¹ÑÓÉ죩

¡¡¡¡Act out the dialogues in groups.