Unit 5　The power of nature教案

having_experienced_quite_a_few_earthquakes_in_hawaii_already，i didn't take much notice.
教
學
重
點 1.get students to know about disasters that are caused by natural forces.
2.have students learn some useful new words and expressions about natural disasters and let them learn effective ways to master them.
3.enable students to express their emotions such as joy，fear，anxiety and surprise.
4.let students get a better understanding of the grammar item：the －ing form.
5.develop students' listening，speaking，reading and writing ability.
教學難點 1.enable students to master the usages of the －ing form.
2.let students learn to write a letter expressing emotions.
3.develop students' integrative skills.
課時安排 periods needed：6
period 1　warming up，pre－reading，reading and comprehending
period 2　language study
period 3　grammar—the －ing form
period 4　listening and speaking
period 5　reading and writing
period 6　summing up，learning tip and assessment

period 1　warming up，pre－reading，reading
and comprehending
整體設計
教學內容分析　　　
this is the first teaching period of this unit.the central part of this period is the reading passage with the name of an exciting job showing the stude nts the power of nature.
warming up gives two topics for students to discuss，letting students get some more knowledge about the power of nature.
pre－reading provides some questions and a questionnaire to help students focus on the topic of the reading passage and lead the students to think about any personal experiences of working outside，such as things about climbing into a live volcano，doing dangerous work，travelling，taking risks，adventure，studying rocks and so on.
reading is a first－person account of a volcanologist's experiences.he loves his job very much because he can help protect ordinary people from one of the most powerful forces on earth.his job is collecting information for a database about mount kilauea and helping other scientists to predict where lava from the volcano will flow next and how fast.once，he watched an eruption and then collected some lava for later study.after many years，he is still enthusiastic about his job.reading contains a picture that is an absolutely fantastic sight.after a glance at the title of the text and the headlines within it we know that it is an account，in which there are many emotion expressions.then we can understand the topic of the text and how the information is organized.
comprehending consists of three written or oral exercises for the students to do so as to help the students to get a better understanding of the text，that is to say，to help the teacher to check how much the students have understood the text.