人教新课标选修6 Unit 5 教学设计参考.doc

Unit5 The power of natureIII教材分析本单元以the power of nature 为话题，旨在通过本单元教学使学生了解火山爆发，地震，台风，洪水，海啸等自然现象，认识到自然的伟大力量，并会用所学词汇描述在经历自然灾害时的感受，思考人类应对自然灾害的态度和方法，提高自我保护意识。Warming up 通过对火山爆发示意图的探讨激活学生了解与本单元话题相关的背景知识，而后通过讨论人类应对自然灾害的措施引发学生对本单元话题的思考，激发学生的求知欲，为随后进行的听说读写打下基础。Pre-reading 通过回答问题测试自己是否适合作火山学家，让学生了解这一陌生职业，为阅读做好准备。Reading 部分一味火山学家以第一人称的形式讲述了自己的工作及第一次目睹火山爆发时的情景和心情，描写了人与自然的斗争与和谐相处的乐趣，使学生认识到火山是美丽的，但同时极具破坏力，而火山学家的工作可以减少由火山引发的损失。 Comprehending 设计了两种题型：第一题要求学生在阅读后发表对火山学家这一职业的看法；第二题检测学生对文章细节的理解。 Learning about language 分为词汇和语法两部分。词汇部分着重从词的意义用法和表达方面对学生学习词汇给予指导；语法部分学习-ing形式在句子中作状语表原因，时间及结果。 Using language 以语言实践为目的，包括四个部分的内容。Listening 三位火山学家讲述了他们各自最惊险的一次经历。学生在练习听力的同时学会描述害怕和紧张的词汇。Speaking 是listening 的延续。要求学生讲述自己类似的经历，同时在运用中巩固单词。Reading 介绍了旅游胜地the lake of heaven， 培养学生快速获取信息的能力。Reading与writing 属于同一话题，要求根据所给信息写一篇介绍hot springs 的作文。 Sunning up部分要求学生就火山，火山学家，天池，本单元词语，-ing形式和表达情感的日常交际用语等方面进行自我评价，判定呢感学习情况。 learning tip 部分介绍单词记忆方法：利用构词法或话题分类记忆单词；利用图表，图片等记忆单词；随身携带生词本；多说多写。 IV分课时教案(多媒体教学)The first period Warming up and pre-reading1. Warming upIn 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 1) 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 2) 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 , unbelievable3) 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 volcanoesDiscuss 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 ?volcanologistsdo they take up a crazy job?2) 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. 3) after they have completed the task, survey the class to find out how many might enjoy the work of a volcanologist.The second period Reading and comprehending1.First readingSkinning & skimming1)Ask students to read through the passage quickly to get a main idea ofthe whole passage. Give them a limited time to read the whole passagein 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 volcanologists 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 (见课件) 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 volcanologists 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 dont 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 absolutely fantastic sight red hot lava was containing hundreds of metres into the air 2).what did the scientists do after the eruption ? answer: put on white protective suits, helmets, big bootsdropped as closed as possible to the craterslowly make our way to the edge of the craterlooked down into the red boiling centerHomeworkSpend 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 actual 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 disaster happening again or to lessen the damage.The third period Language PointsExplain language points in the reading passage.1. have you ever considered how weak humans are compared with a volcano, hurricane or earthquake ? 你是否想过， 和火山，飓风或地震相比人类是何等脆弱。consider 思考, 主要用于： consider +名词/-ing形式: He is considering studying abroad.他正在考虑出国留学。Consider + wh-: We considered how we should help them.我们仔细考虑应该如何帮助他们。Consider + 副词：Consider carefully before you decide.要慎重考虑后再作决定。2. Do you enjoy taking risks ? risk n. 风险，危险： he was taking a risk by overtaking on a bend. 他在转弯处超车是在冒险。 The house is a fire risk. 这房子有起火的危险短语联想：at risk 在危险中:You are at risk if you dont wear a seat belt. 不系安全带真的会有危险。at the risk of 冒危险：At the risk of seeming rude, I must refused your request, Im afraid. 尽管似乎无理，恐怕我还是必须拒绝你的要求。3.Many houses have been covered with lava or burnt to the ground. 许多房屋被熔岩覆盖或烧毁。 burn to the ground 指楼等被烧毁。例如： He has no place to live in because his house has been burnt to the ground. 他无处栖身因为他的房子被烧掉了。短语联想：burn away 烧掉：The wood had burnt away to nothing. 木头已烧成灰烬。burn down (建筑物) 烧毁：The cinema burnt down last year.电影院去年被烧毁了。The school was burnt down by vandals.学校被人纵火烧毁了。Burn off 烧掉：He was badly injured in the accident, and his hair was burnt off. 他在事故中严重受伤，头发也被烧掉了。Burn out 烧坏:The engine had burnt out. 引擎给烧坏了。Burn up 烧毁，燃得更亮/旺： The rocket burnt up when it reentered the earths atmosphere. 火箭重入地球大气层时烧毁。 He put more wood in the fire to make it burn up. 他往火上加木材想让他烧的更 旺。4. We slowly made our way to the edge of the crater. 我们慢慢向走火山口的边缘。 make ones way （向某地）走（去）：She hesitated, but made her way forward. 她犹豫了一下，但向前走去。She hastily left the room, and made her way to her bed. 他迅速离开房间，朝她床边走去。短语比较：make ones way 还表示“有出息” ：If you want to make your way in the world, you must learn to work hard while you are still young. 你若想要有出息，趁年轻的时候要学会发奋。make way (for) 让路，让位：All the traffic has to make way for a fire engine. 所有的车辆都得给救火车让道。I shall make way for a younger man .我将把职位让给更年轻的人。5. Today , I am just as enthusiastic about my job as the day I first started. 如今， 我和开始从事这项工作时一样满怀热情。 enthusiastic (about) 感兴趣的，热心的： She seemed enthusiastic about the idea. 她好像对这个主意很感兴趣。 We got an enthusiastic response from our customers. 我们得到了顾客们的热情反应。6. She made an effort to be nice to her boss.她努力对老板好些。 effort 可用做不可数名词，表“力气”： It took a lot effort to lift the boxes. 抬起那些箱子要花很大的力气。effort 可用做可数名词，表“费劲的事” “尝试”： It was an effort to get up this morning.今天早晨起床很费劲。 Despite all our efforts, we failed. 尽管我们尽了力，我们还是失败了。make an effort to do sth 努力做某事： He made an effort to arrive on time. 他尽量准时到达。Homework: finish exercises in “learning about language”The forth period GrammarReview the usage of ing form:1.Write the following pairs of sentences(or other similar ones)on the board.I was feeling tired. I went to bed earlyfeeling tired I went to bed earlyI worked hard all day. I went to bed earlyHaving worked hard all day, I went to bed early.2. Ask student to consider when the action in each pair of sentences happened and Lead them to understand that in the first pair of sentences, the feeling and the action are happening at the same time; whereas in the second pair, the working allday happened before he/she was tired.3.Examine the sentences below and discuss in what way the structures similar to each other and in what way they are differentLooking carefully at the ground, I made my way to the edge of the crater.Having experienced quite a few earthquakes in Hawaii already, I didnt take much notice.Having + past participle (the perfect ing form) to refer to an action that took place before the time expressed by main verb.4. Read and discuss Exercise 1 in the SB5. Set Exercise 2. check answers and discuss structures.6. Set Exercise 3,4 and 5. check answers after each exercise and discuss reasons for the structures used.7. 小结-ing 形式的用法1) ing 形式作状语用法例句时间Walking along the street, I met Mary. (= While I was walking along the street.)在街上走的时候，我遇到了玛丽。条件Turning to the left, you will find the school. (= If you turn to the left, .)向左走，你就会找到那个学校让步Knowing where I live, he never come to see me .(= Though he knows where Ilive, .)尽管他知道我的住处，但从不来看我。伴随I stood there, waiting for her. (= , and waited for her.)我站在那儿等她原因Being tired , I stopped to take a rest. (= Because I was tired, .)因为疲倦，我停下来休息。结果It rained heavily, causing severe flooding in the area.(= It rained heavily so that it caused severe flooding in the area.)在这个地方雨下的如此大，以至引发了洪灾。(Having been)+p.p. , 主语+谓语被动主动Having finished my work, I went home. (= After I had finished my work, .)工作做完只后，我就回家了。例句u ing形式的完成式所表示的时间在谓语动词之前u 表示被动可直接用过却分词用法Having +p.p. , 主语+谓语句型2) . 使用-ing形式需注意的几个问题:.分词(短语)作状语时，其逻辑主语必须与句子的主语一致。如果不一致，必须用独立主格结构来表示，也就是在分词前面加上它的逻辑主语。 My wife had a long talk with Sally, explaining why she didnt want the children to play together我妻子与莎莉谈了很长时间，解释她为什么不想让孩子们在一起玩。(现在分词explaining是句子主语my wife做的动作，它们之间是主动关系,即explaining的逻辑主语，就是句子的主语my wife 。)The train having gone, we had to wait another day.（the train逻辑主语 + having gone 既为独立主格结构）分词短语做状语时，前面可以加上连词或 介词，但是分词短语和句子之间不能用并列连词(如but，and)，因为并列连词接的是两个并列成分，而分词短语只是全句的一个状语部分。分词和主句之间可用逗号。例如:误: Having been told many times，but he still couldnt understand it.正: He was told many times, but he still couldnt understand it.或Having been told many times， he still couldnt understand it.-ing的一般式和完成式现在分词都可以表示先后接连发生的动作。在可能引起误解的场合应该用完成式现在分词表示先发生的动作。例如:Opening the drawer，he took out his wallet. (=He opened the drawer and took out his wallet.)他打开抽屉，拿出钱包。Coming into the room，he put down his bag. (=he came into the room and put down his bag.)他走进房间，放下提包。Having brushed his teeth，Mr. Brown came downstairs for breakfast.布朗先生刷过牙，就下楼来吃早饭。 (此句如写成:Brushing his teeth, Mr. Brown came downstairs for breakfast.可能指“边刷牙，边下楼。分词的否定形式是在分词短语前面加上 not, never等否定词构成。例如: Not fearing the fire, the child touched and got a finger burnt. 小孩儿不知道怕火，用手去摸，把手指烫了。 Not knowing how to find the subway, I asked a policeman for help. 我不知道怎 样找到地铁，就去找警察帮忙。 5. some explanations:The height of the land varies from 700 metres above sea level to over 2,000 metresand is home to a great diversity of plants and animals.这里的地面高度从海拔700米到2，000多米不等， 是各种各样的动植物的生长地。vary v. 呈现不同 ；改变，变化:My husband varies the vegetables he plants each year.我的丈夫每年都种不同的蔬菜。vary fromto 由到不等； 从变为 :These fish vary in price from 3 to 5.这些鱼的价格从3镑到5镑不等。Her mood varied from optimism to extreme depression.她的情绪由乐观一变而极为消沉。variety (质量，种类或特征的)变化：You need a lot of variety in your diet.你的膳食要多样化种类，品种：different varieties of bananas不同品种的香蕉6. Assign writing task: on page40 in the SB.Unit 5 The power of natureVocabulary and Useful ExpressionsStep 2 Language Points1volcano n.pl. volcanoes an active volcano 活火山an extinct volcano 死火山a dormant volcano休眠火山知识拓展火山学 volcanology -logy: “ 学/论。” oceanology climatology火山学家 volcanologist -ist “学家 ” pianist physicist2. Have you ever considered how weak humans are compared with a volcano, hurricane or earthquake? consider大致有两种含义。含义不同，用法有别。知识拓展consider作“考虑”解，常用于以下句型：consider+名词/代词/动名词consider+从句或“疑问词+不定式”。Youd better_. 你最好考虑我的建议。Im _abroad some day.我一直考虑有一天出国。Have you considered_?你们考虑他的建议了吗？We must consider_.我们必须考虑下一步要做什么。Keys:consider my suggestion considering going what he suggested; what to do nextconsider作“认为”解时，常用于以下句型：consider sb. /sth+ (as) +形容词/名词 其中，as可以省略。consider +sb./sth.+不定式 其中，不定式通常是to be (可以省略) 或其他动词的完成式。consider +it+形容词/名词+不定式短语consider+宾语从句At first they considered me_.起初他们认为我是医生。We consider this matter_.我们认为这件事很重要。We all consider him _the bike.我们都认为他偷了自行车。We_.我们认为学好英语很难。I consider_. 我认为帮助你学习英语是我的职责。We_. 我们这首音乐很值得一听。 Keys:(as) a doctor (to be) very important to have stolenconsider it hard to learn English well it my duty to help you with your studies consider that the music is well worth listening to3. Sometimes working indoors, Im never bored.bore vt 使(人)厌烦-I am sorry I spoke for so long-I hope I didnt bore you.bored adj. (人) 厌烦的boring adj. （物）令人厌烦的Are you getting bored of doing the same thing every day?The movie was so boring that I fell asleep The life is more and more boring, so many people become more and more bored.生活越来越无聊,所以很多人也变得越来越无聊 4. Many houses have been covered with lava or burnt to the ground. burn to the ground (楼房等)完全烧毁他无处栖身因为他的房子被烧掉了.He has no place to live in because his house has been burnt to the ground. 知识拓展burn up 烧完; 烧尽; 烧光;烧旺起来 burn down烧成平地(烧毁,烧光)burn off烧掉burn out烧掉Dont leave the gas on you might burn the house down.别忘了关煤气炉-不然会把房子烧掉的.The house burnt down in half an hour.那所房子在半小时之内就被焚为平地.All the wood has been burnt up.木柴全部烧光了。burn off 烧掉Burn the old paint off before re-painting the door.先把门上的旧漆烧掉再上新漆.burn out 烧掉The hotel was completely burnt out.该旅馆毁於大火.If he doesnt stop working so hard, hell burn himself out.他继续这样拚命地工作，就会累垮的。5. We slowly made our way to the edge of the crater. make ones way （向某地）走（去）make ones way in life 事业有所成就 make way (for) 让路，让位He made his way through the crowd to greet us.他穿过人群向我们打招呼。All the traffic has to make way for a fire engine. 所有的车辆都得给救火车让道。If you want to make your way in the world, you must learn to work hard while you are still young. 你若想要有出息，趁年轻的时候要学会发奋。知识拓展feel one way摸索前进push ones way挤过find ones way找到路，设法到达go ones way走自己的路，我行我素fight ones way奋勇前进wind ones /its way蜿蜒前进lose ones way迷路6. Today, I am just as enthusiastic about my job as the day I first started. be enthusiastic (about) 感兴趣的，热心的He is enthusiastic about helping others .他热心助人。Im really very enthusiastic about it.我对此真的非常热心。Despite all our efforts we still lost the game.7. She made an effort to be nice to her boss.effort n. 努力; 力气; 努力的成果make an effort to do sth 努力做某事：It took a lot effort to lift the boxes. 抬起那些箱子要花很大的力气。Despite all our efforts we still lost the game.尽管我们尽了全力，我们还是输掉了比赛。Put more effort into your work.你要更加努力地工作。Your success lies upon your effort.你成功与否取决于你的努力。He made an effort to arrive on time他尽量准时到达。8. Having collected and evaluated the information, I help other scientists to predict where lava from the volcano will flow next and how fast it will flow.本句为ing形式的完成式作状语。如果分词表示的动作在谓语动词表示的动作之前发生，该分词用完成式。 例如： Not having met the man before, I couldnt recognize him at first. Having finished my homework, I went to play football. _ the programme, they have to stay there for another two weeks. (C)A. Not completing B. Not completed C. Not having completed D. Having not completedStep 3 Homework1. Master and go over the use of the words and phrases above.2. Pre-view the usage of ing form.Unit5 The power of natureListening , Speaking and WritingTeaching procedures Step 1 Pre-listeningCan you imagine the volcanologists work?They often face the dangerous situation.Can you guess what the following three volcanologists most frightening experiences are?Step 2 ListeningLook at the pictures of volcanologists at work on page 38. Then listen to them talking about their most frightening experience. Write their names under the picture.A. Frank Gore B. Jane SmallC. Sarah TangListen to the tape again, and answer the following questions.1. How long has she been a volcanologist?2. In what country was the volcano he/she talks about?3. Why did he/she forget to be frightened?Jane Small1.How long has she been a volcanologist? Five years.2. In what country was the volcano she talks about? Alaska3. Why did she forget to be frightened? She was excited about what she had done.Frank Gore1. How long has he been a volcanologist?Ten years.2. In what country was the volcano he talks about?Hawaii.3.Why did he forget to be frightened?The p