选修unitThepowerofnature之PPT学习教案

1、会计学1tall buildingsmodern agriculturespaceshipmodern communication第1页/共24页 However, humans are so weak compared with nature power. They all show us _power. Man is wise and powerful and has changed the whole world a lot.human We should pay attention to protecting our environment.第2页/共24页 Can you list

2、some natural disasters?第3页/共24页flooddroughtearthquake第4页/共24页thunder/ lightningtornadoTyphoon/Hurricane tsunami第5页/共24页sandstorm第6页/共24页snowstorm第7页/共24页landslide山体滑坡 mud-rock flow泥石流第8页/共24页Volcano第9页/共24页Get to know about 第10页/共24页火山灰火山口岩浆岩浆流 第11页/共24页The rocks under the earth become _and finally

3、_from the mountain. How is a volcano formed?hotter and hottererupt第12页/共24页Joints between the plates. Often near the oceans.Where is the most possible place that a volcano may erupt?第13页/共24页extinct volcano (= one that is no longer active at all)dormant volcano (= one that is not active at the momen

4、t)active volcano (= one that may erupt at any time) What types of volcanoes do you know?第14页/共24页,vlknldst Someone who study volcanoes is called第15页/共24页An Exciting JobWorking as a volcanologist.第16页/共24页1. Whats the main idea of the article?The writer expressed his _ for his job as a _ and told us

5、one of his unusual _in Mount Kilauea, Hawaii.lovevolcanologistexperiences第17页/共24页2. Find out main ideas for each part.Part 1Part 2 Part 3 The writers _ and its _.jobimportanceThe writers _of watching the volcanic eruption.experienceThe _ for the writers enthusiasm about his job.reasonsPara 1-2Para

6、3-4Para 5PartParamain idea第18页/共24页Part one ( Para 1 -2 ) 1. Why is a volcanologists job important?2. The writer doesnt mind the occasional danger of his job because _.Part two ( Para 3 - 4 ) 3. Why is the lava that flows on Mount Kilauea more dangerous than the actual eruption?4. Why did the scient

7、ists have to get close tothe volcano after it began erupting?Part two ( Para 5 ) 5. What attracts the writer after he has studied volcanoes for more than twenty years?第19页/共24页Part one ( Para 1 -2 ) 1. Why is a volcanologists job important?2. The writer doesnt mind the occasional danger of his job b

8、ecause _.Because it can warn people when the volcano is going to erupt and save many lives.danger excites him and make him feel alive第20页/共24页Part two (Para 3 - 4) 3. Why is the lava that flows on Mount Kilauea more dangerous than the actual eruption?Because the lava flows down the mountain and can

9、bury everything in its path under molten rock.4. Why did the scientists have to get close tothe volcano after it began erupting?To get some lava for later study.第21页/共24页The beauty of the eruption and its potential to cause great damage. Part three ( Para 5 ) 5. What attracts the writer after he has studied volcanoes for more than twenty years?第22页/共24页Lets invite 3 students to act as volcanologists. Each of the other students prepares a ques