1、Unit 5 The power of naturetsunamiearthquake snowstormflood tornado landslide volcano What do you know about volcano? Do you know how a volcano erupts?active volcanodormant volcanoextinct volcanovolcano-eruptionBoiling rock erupts from the crater; the lava flows slowly down the mountain. Magma chambe
2、rLavaCraterAsh cloudMore about the volcanoMore about the volcano1. How is a volcano formed?The rocks under the earth become hotter and hotter and erupt from the mountain.Near the oceans.2.Where is most possible for a volcano to erupt? gasliquidsolidlavawater vapour, carbon dioxide, nitrogen(氮氮), sul
3、phur(硫磺硫磺), etc.bits of rock and volcanic ash, etc.3.What will be produced after the eruption of volcano?Who will climb into a live volcano to take the temperature of the boiling rock inside?QuizAre you suitable for being a volcanologist ?Yes No 1 Do you like working outside as well as inside?2 Do y
4、ou enjoy travelling to unusual places?3 Do you enjoy taking risks?4 Do you dislike doing the same thing every day?5 Do you like adventure in your life?6 Are you interested in studying rocks and other things that make up the surface of the earth?An Exciting JobWorking as a volcanologist. What might b
5、e talked about? What does a volcanologist do? Is the work important? His job is to collect the information about the volcano and predict where lava will flow and how fast so that the people in the path of the lava can be warned to leave their house.Skimming Get the main idea of each paragraphPara 1P
6、ara 2Para 3Para 4Para 5The writer expresses his love for his job and why he loves it.The writer describes his job and its importance.The writer describes his first sight of a volcano eruption.The writer describes his first closer look at a volcano eruption.The writer states again his love for his wo
7、rk and volcanoes.The main idea of the passagePart 1Part 2Part 3(Paras. 1-2)(Paras. 3-4)(Para 5)What the writers job is and the importance of his job.The writers experience of watching the volcano eruption.The reasons why the writer is enthusiastic about his job.Part one (Para. 1- Para. 2) 1)Why is a
8、 volcanologists job important?2) Where is Mount Kilauea?3)What does the word “alive” mean ?A. Living or not dead. B. Active or lively. C. Continuing. D. Healthy.It can warn people when the volcano is going to erupt and save many lives.In Hawaii.Part two (Para. 3- Para. 4) 1. Why is the lava that flo
9、ws on Mount Kilauea more dangerous than the actual eruption?2. What made the author realize that an eruption occurred?3. Why did the scientists have to get close to the volcano after it began erupting?4. Why was it difficult for the writer to walk towards the edge of the crater ?The lava can cover u
10、p or burn villages in its path. The rocks from the volcano usually dont damage anything because no one lives near the crater.2.What made the author realize that an eruption occurred?My bed began shakingA strange soundMy bed room became as bright as dayRed hot lava was fountaining hundreds of metres
11、into the airAn absolutely fantastic sight3.What did the scientists do after the eruption?Put on white protective suits helmets, big bootsSlowly made our way to the edge of the craterLooked down into the red, boiling centreClimbed down into the crater to collect some lava3. Why did the scientists hav
12、e to get close to the volcano after it began erupting?To get some lava for later study.Part two (Para. 3- Para. 4) 4. Why was it difficult for the writer to walk towards the edge of the crater ?The writer wore special protective suits that made it difficult to walk.Part two (Para. 3- Para. 4) Part t
13、hree (Para. 5) What does the writer find impressive even after studying volcanoes for more than twenty years? The author is impressed by the beauty of the eruption and also by its potential to cause great damage.1 The writer doesnt mind the occasional danger of his job because _.A He travels to unus
14、ual places and meets interesting people from all over the world.B He likes the different ways of working. C He thinks his job the most important. D He is excited about dangers and feels alive. Choose the best answer: D D2 As a result of the volcanologists work, _.A other scientists predict the progr
15、ess of lava from the volcano. B many people have been warned to leave their homes. C the eruption causes less damage. D the eruption may be prevented breaking out. A A3 Why did the vocalnologist run out of the house into back garden ?A Because his bed began shaking. B Because his bedroom suddenly be
16、came as bright as day.C Because he thought there was an earthquake in Hawaii.D Because he wanted to collect information about eruption. B B4 What does the writer mean by using lucky in the sentence I was lucky enough to have a much closer look at it?A He felt much safer on the top while the other tw
17、o scientists climbed down into the crater. B It was his first sight of an eruption. C It was the first time for him to watch the crater.D Both B and C. D D1） Having learnt a little more about the work of a volcanologist, Discuss your reasons with others in your class.2) If you could meet the writer of the passage, Discuss with others in your class.Homework 1. Writing: 80 words (choose one of them) 1).tell your feeling of the power of nature 2) tell whether you will enjoy working as a volcanologist2.Try to find out the language points in the text.
