1、Unit 5 The Power of Nature 人教新課標(biāo)選修六Remember what happened on Dec 26, 2004?tsunami Do you know any other natural disasters ? Please work with your partners and make a list of natural disasters .Warming up earthquakefloodsdroughtthunder/ lightningtornado/cyclonehurricane /typhoonvolcano-eruptionWhat d

2、o you know about volcano?Do you know how a volcano erupts?volcano-eruptionBoiling rock erupts from the crater; the lava flows slowly down the mountain. Magma chamberLavaCraterAsh cloud/volcanic ashMore about the volcano1. How is a volcano formed?The rocks under the earth become hotter and hotter and

3、 erupt from the mountain.Near the oceans. Where is most possible for a volcano to erupt?An extinct volcanoHaleakala Crater, the largest dormant volcano in the worldMaui, HawaiiAn active volcano3. What types of volcanoes do you know?dormant volcanoactive volcano (=one that may erupt at any time)dorma

4、nt volcano (=one that is not active at the moment)extinct volcano (=one that is no longer active at all)What qualities are needed for a volcanologist?Are you suitable for being a volcanologist ?Answer “yes”or “no” to the following questions.Pre-reading Questions Yes No 1 Do you like working outside

5、as well as inside?2 Do you 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?I would like/ wouldnt like to b

6、e a volcanologist because.An Exciting JobReadingWhat is the writer?When did he first see an eruption? How did it look like?What was he wearing when getting close to the crater? And what was the result?Skim the text and answer the following questions:What is the writer?When did he first see an erupti

7、on? How did it look like?He is a volcanologist working for the Hawaiian Volcano Observatory. He mainly collects information about Mount Kilauea.It was in the second week after he arrived in Hawaii. It was very bright although it was night. Red lava fountained hundreds of meters into the air and it w

8、as a fantastic sight.3. What was he wearing when getting close to the crater? And what was the result?He was wearing white protective suits that covered his whole body, helmets, big boots and special gloves, just like a spaceman. As a result, it made him difficult to walk.What kind of things should

9、a volcanologist do? Collect and evaluate information about volcanoes. 2. What is the volcanologist wearing when getting close to the crater? White protective suits that covered his whole body, helmets, big boots, special gloves. He looks just like a spaceman.Part 1(Para 1-2) Part 2(Para 3-4) Part 3(

10、Para 5) The writers job and its importance The writers experience of watching the volcano eruptionThe reasons for the writers enthusiasm about his jobThe main idea of the passage:Part one (Para 1- Para 2) 1) Why is a volcanologists job important?2) Where is Mount Kilauea?3) The writer doesnt mind th

11、e occasional danger of his job because _ _.It can warn people when the volcano is going to erupt and save many lives.In Hawaii. danger excites him and make him feel alivePart two (Para 3- Para 4) Why is the lava that flows on Mount Kilauea more dangerous than the actual eruption?What made the author

12、 realize that an eruption occurred?a. I heard a strange sound.b. my bedroom became as bright as day.c. my bed began shaking.d. I ran out of the house into the back garden.1234Part two (Para 3- Para 4) 3. What does the writer mean by using “l(fā)ucky” in the sentence “I was lucky enough to have a much cl

13、oser look at it.”?4. Why did the scientists have to get close to the volcano after it began erupting?To get some lava for later study.It was his first sight of an eruption.It was the first time for him to watch the crater.Part three (Para 5) What attracts the writer after he has studied volcanoes fo

14、r more than twenty years? The author is impressed by the beauty of the eruption and also by its potential to cause great damage. 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. Where is

15、 Mount Kilauea? Mount Kilauea is in Hawaii.Scan the text and answer the following questions: 4. What caused the writers bedroom to become as bright as day even though it was night? The light that was caused by the red-hot rocks and gases that erupted from the volcano.3. Why is the lava that flows on

16、 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 near the crater.5. Why did the scientists have to get close to the volcano a

17、fter it began erupting? The scientists needed to get samples of the lava so they could study them.6. 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.7. What does the writer find impressive a

18、bout volcanoes even after studying them for many years? The writer finds their beauty and also their potential to cause great destruction.DiscussionHaving learned a little more about the work of a volcanologist, do you think it is a occupation you would enjoy? Give your reasons.No. I probably wouldn

19、t enjoy this job because I would have to live in other countries and also I dont like being in dangerous. Also, Im not very good at science.Yes, Id like to do a job like this because I would enjoy working outside and I think I would enjoy the adventure. It would be exciting to meet people from diffe

20、rent countries and I would feel good about helping people avoid danger.Suggested answers to Exercise 2 on page 35Essential skillsDegree and/or Doctors degree in geologyInterest in Earth science which includes:knowledge of volcanoesknowledge how magma (hot, liquid rock) erupts and how it behavesresea

21、rch skillsskill in analysing and interpreting research results and other informationpractical skills for performing experiments and operating scientific equipmentDesirable skillsComputer skillsForeign languagesPractical skills such as:the ability to read blem-solving skills.planning and orga

22、nizational munication skills.writing skills, for writing reports and for publications.1. volcanopl. volcanoes-logy: “ 學(xué)/論”volcanology-ist “學(xué)家 ”volcanologist 活火山死火山休眠火山火山學(xué)scientistpianist 火山學(xué)家biologyoceanology an active volcano an extinct volcano a dormant volcanoLanguage points 2. eruptIts many year

23、s since Mount Vesuvius last erupted.2)（搏斗，暴力事件，噪音等）突然發(fā)生，爆發(fā) Violence has erupted on the streets.erupt into laughter/shouting/crying突然大笑/叫喊/大哭He erupted into laughter without any reason.1)（火山）爆發(fā)，噴發(fā)3. alongside 1) prep. with “和” ; beside “在.旁邊”Its a pleasure to work alongside such men. The boat pulled

24、up alongside the dock（碼頭）.2) adv. 在旁邊;沿著;靠攏著;并排地The police car drew up alongside. 拓展：alongside of 在旁邊，與并排，與相比alongside with 與一起， 除.以外4 . equipment 【u】 n.配備,裝備The complete equipment of the new hospital will take a year. 把這個(gè)新醫(yī)院的設(shè)備配齊要化一年時(shí)間。 設(shè)備， 器材This is a usual piece of equipment for the kitchen.medic

25、al / office equipment equip v. 裝備,使有準(zhǔn)備使能夠做某事Equip ourselves with knowledgeEquip the army with modern weapons5. bore I am _ with the same old routine day after day. The book is _. I am sorry I spoke for so long. I hope I didnt _ you. My father is always _ us with his stories about the war. boredborin

26、gboreboringbore sb. to death 使某人厭煩得要命6. appointvt.任命,指派 appoint sb. as/to beThey appointed him (to be) manager.約定,指定;安排Our visitors arrived at the appointed time. 拓展：appoint sb. to do sth. appoint a time / place / for sth. / to do sth. The time appointed for the meeting is 10:30.appointment n.(尤指正式的

27、)約會(huì)+withhave an appointment with sb. 與某人約會(huì)I have an appointment with them in the evening. 7. evaluate 評(píng)估，評(píng)價(jià)沒見過他的工作，我無法評(píng)估他的能力。I cannot _ without seeing his work.evaluate water quality , evaluate method , evaluate factorevaluation n. 評(píng)估，評(píng)價(jià)，評(píng)估報(bào)告They made an intensive evaluation of the health care progr

28、am.evaluate his ability8. burn to the ground 完全(樓房等)燒毀 He has no place to live in because his house has been burnt to the ground. 與burn搭配的常用詞組有： burn away燒掉 Half of the candle had burnt away.burn down 漸漸燒完 The room grew colder as the fire burnt down.burn sth. down 把燒得精光 Dont forget to turn off the g

29、asyou might burn the house down. burn up 燒得更旺 He put more wood on the fire to make it burn up.burn sth. up 把燒掉 He has burnt up all the garden rubbish.burn off 燒掉某物，消耗 burn to death 燒死 burn out 燒光 burn oneself out 耗盡某人精力9. wave v. 1）指固定的物體上下擺動(dòng)或搖動(dòng)2）（指人）揮手、招手、擺手3）（使某物）呈弧形a flag waving in the breeze , a

30、 field of waving corn;He waved ( to us ) when he saw us.She has her hair waved .n. 波浪，The storm whipped up (掀起了) huge waves.拓展：wave band （無線電波）波段 wave length （光波、聲波等的）波長(zhǎng) in waves 一批一批，一陣一陣wave sth. aside 不理會(huì)某事10. However, the eruption itself is really exciting to watch and I shall never forget my fi

31、rst sight of one.然而火山噴發(fā)本身的確是很壯觀的，我永遠(yuǎn)也忘不了我第一次看見火山噴發(fā)時(shí)的情景。在“主語+be+形容詞+不定式”句型中，有時(shí)主語是不定時(shí)結(jié)構(gòu)的邏輯主語，這時(shí)應(yīng)用主動(dòng)形式表示被動(dòng)含義。適合于此結(jié)構(gòu)的形容詞比較多，最常用的有amusing, dangerous, difficult, easy, important, nice, pleasant 等。當(dāng)上述形容詞在句子做賓語補(bǔ)足語，后接不定式，不定式也用主動(dòng)形式表被動(dòng)意義That question is difficult to answer.Chicken legs are nice to eat.I found

32、him easy to get along with.They dont think the game interesting to play.sight , scene , scenery, viewsight: 表示“風(fēng)景，名勝”時(shí)用復(fù)數(shù)形式，人文景觀；還有“視力”意思。scene： 指一眼可以瀏覽的風(fēng)景，不限于自然風(fēng)景。scenery：集合名詞，至該地區(qū)的“整個(gè)風(fēng)景”，是有多個(gè)scene構(gòu)成的景色。view : 常指在遠(yuǎn)處或高處，一人的角度看到的scenery一部分。Birds have better sight than dogs.We have a fine view of the

33、lake from our hotel window.Guilin is world-famous for its scenery.There are many beautiful scenes in the park.12. Having experienced quite a few earthquakes in Hawaii already, I didnt take much notice. 由于我已經(jīng)在夏威夷經(jīng)歷過好幾次地震，所以我并沒過多注意。Having分詞短語在句中作狀語，表示動(dòng)作發(fā)生在主句動(dòng)作take notice之前。 Having cleaned the classroo

34、m, the students went to the playground to watch the football match.take notice of sb or sth 注意到（常用于否定句） Take no notice of what others say about your way of life.13. absolute adj. 完全的;真實(shí)的 absolutely adv.完全地;絕對(duì)地e.g. Its an _ fact. Do you let your kids walk alone at night? _not. You are _ right. Its _

35、impossible. I have _ trust in you. There is no _ standard for beauty.absoluteAbsolutelyabsolutelyabsolutelyabsoluteabsolute拓展:absolute zero 絕對(duì)零度absolute majorityabsolute trustabsolute proof 確鑿證據(jù)absolutely adv.完全地，無條件地,完全對(duì)absolutely right十分對(duì)，對(duì)極了，當(dāng)然（口語，作為對(duì)一問題的回答或評(píng)語）-Do you let your kids walk alone at

36、night? -Absolutely not. 14. make ones way 向某地走去, 有出息她猶豫了一下,但向前走去.She hesitated, but _.她快速離開房間,朝她床邊走去.She hastily left the room ,and _ _.你若想要有出息,趁年輕的時(shí)候要學(xué)會(huì)發(fā)奮.If you want to _, you must learn to work hard while you are still young.made her way forward made her way to her bedmake your way in the world所有

37、的車輛都得給救火車讓路.All the traffic has to _ _.我將把職務(wù)讓給更年輕的人.I shall _ . make way for a fire truckmake way for younger peopleMake way for 為讓路拓展:feel one way 摸索前進(jìn)push ones way 擠過find ones way 找到路，設(shè)法到達(dá)go ones way 走自己的路，我行我素fight ones way 奮勇前進(jìn)wind ones /its way 蜿蜒前進(jìn)lose ones way 迷路Stuggle ones way掙扎著前進(jìn)15. Today

38、, I am just as enthusiastic about my job as the day I first started. 如今，我和當(dāng)初從事這項(xiàng)工作時(shí)一樣滿懷熱情。在句中，the day 作復(fù)合連詞用，引導(dǎo)時(shí)間狀語從句I first started名詞短語each time, every time, the moment（一就）和the day 等都可以用作復(fù)合名詞，引導(dǎo)時(shí)間狀語從句，使用時(shí)注意短語前面不可以有介詞，后面不用when. I will give him your message the minute he arrives. He bought a computer

39、 the day he got his salary.16. potentialn. U. 可能性;潛力,潛能 (+for) She has acting potential, but she needs training. He is a young player with great potential. It was his high school teacher that discovered his potential and kept encouraging him.adj. 潛在的，可能的 A number of potential buyers expressed intere

40、st in the company. Education develops potential abilities. Discovering useful words and expressionsLearning about language 1 Replace the underlined parts with a word or phrase of similar meaning from the text. Rewrite the sentence if necessary. We received the written set of questions from the compa

41、ny as they were eager to find out our opinion on their products. the questionnaire2. The car drew up next to the side of our car and the driver waved to us. 3. The scientists were studying carefully to see how successful the experiment is. alongsideThe scientists were evaluating the experiment4. I m

42、oved carefully over the fallen rocks and returned to the car.5. I think the boy is likely to achieve success in painting, but he needs training.6. The teacher was given the job because he was the best candidate. made my wayhas potentialappointed7. It is certain that the factory will greatly raise th

43、eir efficiency if they have modern machines and tools. 8. Charles looked at the drawing that shows how the machine works and knew immediately what was wrong with it. equipmentdiagram2 Complete the paragraph with the words in the box in the correct forms. burn to the ground absolute volcano eruption

44、wave fountain ash lava erupt The eruption of Mount Vesuvius in 79AD took the people of Pompeii by surprise.They had always known that the mountain was a _ but it had been quiet for so long that nobody saw it as a threat. When the volcano finally did _, volcanoeruptit was so quick and so severe that

45、the town was soon covered in _ and _. A writer called Pliny, who was there during the _, described how lava was thrown into the air like a _. After it fell to earth, it turned into _ of lava which travelled down ashlavaeruptionfountainwavesthe mountain faster than people could run away. It was an _

46、disaster for those who could not escape in time. Many of the wooden houses and bungalows in Pompeii were _, but the stone houses remained under the ash until they were rediscovered during the 20th century.absoluteburned to the groundDiscovering useful structuresLearning about language本課時(shí)重、難點(diǎn)重點(diǎn): 動(dòng)詞-i

47、ng形式的作用 動(dòng)詞-ing形式在做狀語時(shí)的作用難點(diǎn):動(dòng)詞-ing形式的一般式與完成式的區(qū)別Revising the ing form觀察下列例句, 思考劃線部分作用。(1) This is an interesting book. ( )(2) The man sitting by the window is our maths teacher. ( )(3) Seeing the teacher entering the room, the students stood up. ( )(4) I saw the boy walking on the street yesterday. (

48、)(5) Playing football is his favotire sport. ( ) (6) I didnt stop working last night. ( )(7) My work is teaching English. ( )定語定語狀語賓補(bǔ) 主語賓語表語歸納總結(jié)：動(dòng)詞-ing是 _ 中的一種， 單獨(dú)使用時(shí), 能在句中做除_ 之外的任何其他句子成分。如: 主語、 賓語、表語、定語、狀語、賓補(bǔ)等。在語態(tài)上，動(dòng)詞-ing表示 _ (主動(dòng)/被動(dòng)的動(dòng)作)。 在時(shí)間上, 動(dòng)詞-ing一般表示 _ (正在進(jìn)行/已經(jīng)完成)的動(dòng)作。 動(dòng)詞非謂語形式謂語主動(dòng)正在進(jìn)行用法例句時(shí)間Walki

49、ng along the street, I met Mary. (= While I was walking along the street.)在街上走的時(shí)候, 我遇到了瑪麗。一、動(dòng)詞-ing形式作狀語用法例句原因Being tired, I stopped to take a rest. (= Because I was tired, )因?yàn)槠＞? 我停下來休息。條件Turning to the left, you will find the school. (= If you turn to the left, ) 向左走, 你就會(huì)找到那個(gè)學(xué)校。用法例句讓步Knowing where

50、I live, he never comes to see me .(= Though he knows where I live, ) 盡管他知道我的住處, 但從不來看我。用法例句伴隨I stood there, waiting for her. (= , and waited for her.) 我站在那兒等她。結(jié)果It rained heavily, causing severe flooding in the area. (= It rained heavily so that it caused severe flooding in the area.) 在這個(gè)地方雨下的如此大, 以

51、至引發(fā)了洪災(zāi)。二、動(dòng)詞 ing形式的完成式句型主動(dòng)Having + p.p. , 主語+謂語被動(dòng)(Having been) + p.p. , 主語+謂語用法1) ing形式的完成式所表示的時(shí)間在謂語動(dòng)詞之前2) 表示被動(dòng)可直接用過去分詞例句Having finished my work, I went home. (= After I had finished my work, )工作做完之后, 我就回家了。觀察下列2個(gè)句子, 體會(huì)having done與doing的不同用法: 1) Having written the letter, John went to the post office

52、.2) Seeing the beautiful sight, the children felt excited. 總結(jié): V-ingdoinghaving done表動(dòng)作有先有后表動(dòng)作同時(shí)發(fā)生一般式完成式舉一反三 : V-ingdoinghaving done一般式完成式being donehaving been done主動(dòng)被動(dòng)Exercise 1: 1) 她被蛇咬了三次后, 她看見蛇后就害怕。 _ _ _2) 正在進(jìn)行的那個(gè)會(huì)議非常重要。 _ _Having been bitten by the snake for three times, she feels frightenedTh

53、e meeting being held now is of great importance.when seeing the snake.1) _ him the answer several timeS, I didt know whether he could understand.2) _ the answer several times, he still couldnt sovle the question.Having toldHaving been toldExercise 2: 用having been told /having told填空：主動(dòng)被動(dòng)歸納主句主語為動(dòng)作的發(fā)出

54、者。主句主語為動(dòng)作的承受者。Answer key for Exercise 1 on Page 37 :Having collected and evaluated the information, I help other scientists Having worked hard all day, I went to bed early.Having earlier collected special clothes from the observatory, we put them on before Having studied volcanoes now for many years

55、, I am still amazedAnswer key for Exercise 2 on Page 37:Having takenHaving givenHaving boughtHaving spentHaving arrivedRewrite the sentences using the present or the perfect ing form of the underlined verbs. 1. Because I had experienced earthquakes before, I wasnt frightened.2. As I came out of my h

56、ouse, I saw the volcano erupting.Having experienced earthquakes before, I wasnt frightened.Coming out of my house, I saw the volcano erupting.Answer key for Exercise 3 on Page 37:3. When she woke up in the middle of the night she saw her room was as light as day.4. After we had stopped the car, we f

57、ound ourselves trapped in thick fog and couldnt see clearly ahead.Waking up in the middle of the night, she saw her room was as bright as day.Having stopped the car, we found ourselves trapped in thick fog and couldnt see clearly ahead.5. Because I had spent all night reading the documents, I was ve

58、ry tired the next day.6. As the child had never seen a rainbow before, she was very excited.Having spent all night reading the documents, I was very tired the next day.Having never seen a rainbow before as a child, he was very excited.Answer key for Exercise 4:Arriving, Standing (there), Having take

59、n, Having tested, Hearing Answer key for Exercise 1 on Page 71 Watching the volcano erupt, John became worried about his safety.Knowing the children were bored, I tried to make my talk interesting.Knowing the view from the top of the mountain was absolutely fantastic, Sue encouraged her friends to m

60、ake the steep climb.Gathering all my courage, I ran back into the burning house to rescue the baby.Hearing the volcano was about to erupt, they cancelled their trip.8. Having made a huge effort to impress the judges, I was disappointed when I didnt win.9. Having swallowed the nuts too quickly, I beg