陕西省榆林育才中学高中英语 5.2 The power of nature reading导学案1 新人教版选修6.doc

陕西省榆林育才中学高中英语 5.2 the power of nature reading导学案1 新人教版选修6学习目标：1、理解课文内容，了解自然的威力，火山喷发的过程（作者的一份工作）。 2、结合上下文语境，感知、体验、重点句子。 3、让学生对 火山喷发的自然现象有更多的了解。学法指导：1、自主学习课文，完成预习案中的练习。 2以课文为载体在阅读中充分利用各种- 5 -读技巧以提高自己的阅读能力。预习案1、 话题阅读 some knowledge about volcanoes(关于火山的一些知识）there are thousands of volcanoes (火山)all over the world. what makes volcanoes ? what happens?the inside of the earth is very hot. because it is very, very hot, the rock（岩石） has melted（融化） like ice. it has become liquid（液体）, like water.it is always boiling, like water in a kettle（茶壶）.if you have seen a kettle boiling, you know that the steam（水蒸气） and boiling water try to get out. the very hot melted rock inside the earth also tries to get out. usually it cannot because the outside of the earth is too thick and strong.but in some places the outside of the earth is thin and weak. sometimes a crack（裂缝）( a small opening) appears. the hot melted rock, which we call “lava（岩浆）”, pushes up through the crack and bursts（喷涌） through . steam and gas shoot up into the air and the hot melted lava pours （倾倒）out. big pieces of rock may be thrown high into the air.after a while the volcano becomes quiet again. the melted lava becomes hard. later the same thing happens again and again. each time more hot lava pours out on top of mountain is built up, with a hole down the middle. perhaps the volcano will then be quiet and no more lava will burst out. perhaps it will start again hundreds of years later.vesuvius （维苏威火山）is the name of a very famous volcano in italy. it first came to life many, many years ago. it was quiet for hundreds of years. then in the year 79 it suddenly burst. a great cloud of smoke shot up into the sky with great burning rocks, which fell all around. hot lava pored down its sides. about 3,000 people were killed.questions:can you describe the eruption(喷发) of volcanoes?_ 探究案一、read the text and then match the main idea of each paragraph.para. 1 the writer expresses his love for his job and why he loves it.para.2 the writer describes his first sight of a volcano eruptionpara. 3 the writer describes his job and its importance.para.4 the writer states again his love for his work and volcanoes.para.5. the writer describes his first closer look at a volcano eruption 二、read the text and do the following exercises1we can know from the passage that _.athe writer likes his job because it is challengingbafter studying volcanoes for 20 years，the writer finds it very boringcnobody dare get close to the volcano after it erupteddit is easy for the writer to get close to the crater2the writer doesnt mind the occasional danger of his job because _.ahe travels to unusual places and meets interesting people from all over the worldbhe likes the different ways of workingche thinks his job the most importantdhe is excited about dangers and feels alive3whats the main idea of paragraph 2?aboiling rock which erupts from the volcano and crashes back to earth causes less damage.bthe lava that flows slowly down the mountain causes far more damage.cthe eruption is much more exciting to watch.dthere had been an eruption in the side of the mountain.4why is the lava that flows down mount kilauea more dangerous than the actual eruption?amany people live near the top of mount kilauea.bthe boiling rocks can cause great damage.cit can bury everything in its path.dpeople cant know where it will flow next.5what does the writer mean by using “lucky” in the sentence “i was lucky enough to have a much closer look at it”？ahe felt much safer on the top while the other two scientists climbed down into the crater.bit was his first sight of an eruption.cit was the first time for him to watch the crater.dboth b and c.三read the article carefully. are these statements true or false?1. the most important thing about the writers job is to travel to unusual places and work with people all over the world ( )2. the writer worked as a volcanologist for the hawaiian volcano observatory 20 years ago( )3. boiling rock cause more damage than we can imagine when it erupts from a volcano and crashes back to earth.( )4. the eruption oof mount kilauea was an absolutely fantastic sight on the scene.( )5. the writer and two other scientists came to the crater to do the research without any protective clothes.( ) 训练案answer the following questions.1. why is a volcanologists job important?_2. where is mount kilauea?_3. why is the lava that flows on mount kilauea more dangerous than the actual eruption?_4. what caused the writers bedroom to become as bright as day even though it was night?_5. why did the scientists have to get close to the