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111 英語：Unit5《The power of nature》教案（5）（新人教版選修6） The first period Warming up and pre-reading 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 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 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 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? get the students to answer the six questions in pre-reading to find out whether they will enjoy working as a volcanologist. Students could do this activity as a survey by asking others in their class these questions Or they could do it individually. after they have completed the task, survey the class to find out how many might enjoy the work of a volcanologist. their guesses were. The second period Reading and comprehending 1.First reading Skinning & skimming 1)Ask students to read through the passage quickly to get a main idea of the whole passage. Give them a limited time to read the whole passage in order to encourage them to practice reading for general ideas and to discourage them from reading word by word main idea: This passage is a first-person account of a volcanologist’s experiences. The volcanologist described his exciting job and wrote down his first sight of an eruption. What does a volcanologist do ?( answer in the text ) Then let students do the multiple-choices (見課件) 2)Set Exercise 1 in “comprehending” either as a group or whole-class activity. Explain to students that the purpose of questions like these is to help them develop skills of evaluating a text. 2.Second reading (intensive reading) Before reading, glance through Exercise 2 on Page35. Choose some to ask them and check their answers: 1). Why is a volcanologist’s job important ? Volcanologists study volcanoes so that they can warn people when the volcano is going to erupt and so save many lives. 2). Why is the lava that flows on Mount Kilauea more dangerous than the actual eruption ? The lava flows down the mountain and can cover up or burn villages in its path. the rocks that erupt from the volcano usually don’t damage anything because no one lives the crater. 3). Why was it difficult for the writer to walk towards the edge of the crater ? The author was wearing special protective clothing that made it difficult to walk 4). What does the writer find impressive about volcanoes even after studying them for 20 years ? The author is impressed by the beauty of the eruption and also by its potential to cause great destruction. 3.Third reading (Read again to find more details) 1).what made the author realize that an eruption occurred ? answer: my bed began shaking a strange sound my bedroom became as bright as day an abosolutely fantastic sight red hot lava was fountaining hundreds of metres into the air 2).what did the scientists do after the eruption ? answer: put on white protective suits, helmets, big boots dropped as closed as possible to the crater slowly make our way to the edge of the crater looked down into the red boiling center Homework Spend some time researching one disaster. You can use books, magazines, newspapers or the Internet. Collect pictures and diagram and look for information about: ? what causes this kind of disaster ? actrual events that happened in the past in china and/or the rest of the world ? how people helped the victims ? what is being done to prevent the disarster happening again or to lessen the damage 111