learning tip 部分介绍单词记忆方法：利用构词法或话题分类记忆单词；利用图表，图片等记忆单词；随身携带生词本；多说多写。

IV．分课时教案(多媒体教学)

The first period Warming up and pre-reading

1. Warming up

In order to talk about what volcanoes are and how they are formed, students need to learn some new words: lava erupt/eruption crater active/dormant/extinct volcanoes

1) Show some pictures of disasters .Ask student to name disasters as much as they know.

Sample answer: cyclone typhoon Hurricane tornado snowstorm landslide

　　　volcano tsunami earthquake flood hailstorm sandstorm

2) Ask them what they feel when they see the power of nature showing in the pictures:

Have you ever experienced one?

Share you experience and feelings? (were you frightened and how frightened were you?)

Some expressions tips: scared to death, frightened, worried, unforgettable , unbelievable

3) Have you ever seen a volcano?

Ask Ss to complete exercise 1 in groups. Then check their answers orally as a whole class.

Ask students to help you make a list of words connected with volcanoes

　　　Discuss with students where in the world active and extinct volcanoes occur.

2. pre-reading

　　1) Can you tell me who will climb into a live volcano in order to take the temperature of the boiling rock inside?

volcanologists--do they take up a crazy job?