高中英语选修六Unit5 The power of nature Period 2教案

高中英语选修六Unit5 The power of nature Period 2教案

Period 2　Language Study 教学内容分析　　　‎ The emphasis of this period will be placed on the important new words，phrases and sentence patterns in Warming Up，Pre－reading，Reading，Comprehending and Discovering useful words and expressions in Learning about Language.There are altogether 44 new words and phrases in these five parts.17 of them are marked with triangles，which shows that the students needn't learn them by heart.It is enough to recognize them when meeting them while reading the passage.The other 27 should all be remembered，among which the following words and expressions are even more important：absolutely，make one's way，alongside，appoint，wave，suit，potential，actual.They are all very useful and important.So are the sentence patterns “Having collected and evaluated the information，I help other scientists to predict where lava from the volcano will flow next and how fast”“I was about to go back to sleep when suddenly my bedroom became as bright as day.” and “The other two climbed down into the crater to collect some lava for later study，but this being my first experience，I stayed at the top and watched them.” We ought to pay more attention to them.‎ 三维目标设计　　　‎ Knowledge and skills ‎1．To get the students to learn to use the following important new words and phrases freely：absolutely，make one's way，alongside，appoint，wave，suit，potential，actual.‎ ‎2．To get the students to understand and use the following important and useful sentence patterns：‎ ‎(1)Having_collected_and_evaluated the information，I help other scientists to predict where lava from the volcano will flow next and how fast.‎ ‎(2)I_was_about_to go back to sleep when suddenly my bedroom became as bright as day.‎ ‎(3)The other two climbed down into the crater to collect some lava for later study，but this_being_my_first_experience，I stayed at the top and watched them.‎ Process and methods ‎1．Referring to the textbook，reference books or dictionaries when meeting with any problems.‎ ‎2．Sharing your ideas with your classmates bravely.‎ ‎3．Talking about the difficult points with your group－mates heatedly.‎ ‎4．Asking the teacher for help if possible.‎ ‎5．Trying hard to learn the language points by heart.‎ ‎6．Practicing the language points actively.‎ Emotion，attitude and value ‎1．To stimulate students' interest in learning English.‎ ‎2．To develop students' sense of cooperation and teamwork.‎ 教学重、难点　　　‎ ‎1．Important new words and expressions：absolutely，alongside，appoint，wave，suit，potential，actual，make one's way.‎ ‎2．Important and useful sentence patterns：‎ ‎(1)be about to do...when...‎ ‎(2)the －ing form used as the adverbial in a sentence ‎3．Some difficult and long sentences in the text.‎ Step 1　Revision ‎1．Check the homework exercises.‎ ‎2．Ask some students to say something about the power of nature.‎ Step 2　Reading and finding Get students to read through Warming Up，Pre－reading，Reading，Comprehending and Learning about Language to underline all the new words and useful expressions or collocations in these parts.Read them aloud and copy them down in the exercise book.‎ Step 3　Practice for useful words and expressions ‎1．Turn to Page 36.Go through the exercises in Discovering useful words and expressions with students and make sure they know what to do.‎ ‎2．Give them several minutes to finish the exercises.They first do them individually，and then discuss and check them with their partners.‎ ‎3．Check the answers with the whole class and explain the problems they meet where necessary.‎ Step 4　Vocabulary study Ⅰ.简单知识扫描 ‎1．alongside(P34)‎ ‎【原句再现】‎ I travel to unusual places and work alongside people from all over the world.‎ 我跑的地方是稀罕奇特的地方，和我一道工作的人来自世界各地。‎ ‎【观察探究】‎ ‎(1)The boat pulled up alongside the dock.‎ 那条船在码头旁停靠。‎ ‎(2)He caught up with me and walked alongside.‎ 他赶上我和我并肩走。‎ ‎【归纳总结】‎ ‎ alongside prep.沿着……的边；在……旁边 adv.在旁边，沿着边 ‎ ‎ 【即景活用】‎ The police car pulled up ______.‎ A．along　　　　　B．alongside　　　　　C．beside　　　　　D．sideline Suggested answer：B ‎2．equipment(P34)‎ ‎【原句再现】‎ ‎...sometimes using scientific equipment and sometimes meeting local people and tourists，I ‎ am never bored.‎ ‎……有时工作中要用科学仪器，有时要会见当地百姓和旅游人士，我从来不感到工作烦人。‎ ‎【观察探究】‎ ‎(1)The equipment has all been field－tested.‎ 这些设备都已经实地实验过了。‎ ‎(2)The equipment of the photographic studio was expensive.‎ 这个摄影室的装备花费巨大。‎ ‎【归纳总结】‎ equipment 是不可数名词，意为“设备，装备”。‎ ‎【知识链接】‎ a piece of equipment 一件设备 equip v. 配备；装备 equip sb.with sth.给某人装备上某物 ‎【即景活用】‎ ‎ (1)Sports equipment ______ in great need.‎ A．is B．are ‎ C．were D．had been ‎ (2)他具有丰富的教学经验。‎ He ______ ______ ______ much experience in teaching.‎ Suggested answers：(1)A　(2)is equipped with ‎3．appoint(P34)‎ ‎【原句再现】‎ I was appointed as a volcanologist working for the Hawaiian Volcano Observatory(HVO)twenty years ago.‎ 作为一名火山学家，我被派到夏威夷火山观测站(HVO)工作。‎ ‎【观察探究】‎ ‎(1)They appointed Mr Smith(to be/as)manager.‎ 他们任命史密斯先生做经理。‎ ‎(2)He was appointed to the vacant post.‎ 他被委派填补那个空缺。‎ ‎(3)They appointed a place to exchange stamps.‎ 他们约定了一个地方交换邮票。‎ ‎(4)I made an appointment with my friend to see a film this weekend.‎ 我和朋友约定了这个周末去看电影。‎ ‎【归纳总结】‎ appoint vt.任命；委派；指定，约定 appoint sb.(to be/as)．..任命某人做……‎ appoint sb.to sth./be appointed to 挑选某人做某工作 make an appointment with sb.to do sth.与某人约定去做某事 ‎【即景活用】‎ ‎ He had a talent for music and was ______ conductor of the Shanghai Symphony Orchestra at the age of 30.‎ A．assigned B．appointed ‎ C．named D．honored Suggested answer：B ‎4．wave(P34)‎ ‎【原句再现】‎ The lava that flows slowly like a wave down the mountain causes far more damage because it buries everything in its path under the molten rock.‎ 像波浪一样顺着山坡缓慢下流的火山熔岩所造成的损失大得多，因为火山岩浆所流经的地方，一切东西都被掩埋在熔岩下面了。‎ ‎【观察探究】‎ ‎(1)Huge waves were breaking on the shore.‎ 巨浪拍打着海岸。‎ ‎(2)The flag waved in the breeze.‎ 旗子在微风中飘扬。‎ ‎(3)Why did you wave at him?‎ 你为什么向他挥手？‎ ‎(4)Mary waved me a greeting.‎ 玛丽挥手与我打招呼。‎ ‎(5)I showed my pass to the guard and he waved me through.‎ 我向卫兵出示了我的通行证，他挥手让我过去。‎ ‎【归纳总结】‎ wave n．波浪；波涛　vi.& vt.波动；起伏；挥手 ‎【即景活用】‎ ‎(1)我向母亲挥手告别时她哭了。‎ My mother was crying as I ______ her goodbye.‎ ‎(2)风吹得池水起了涟漪。‎ The wind made little ______ on the pool.‎ Suggested answers：(1)waved　(2)waves ‎5．suit(P34)‎ ‎【原句再现】‎ ‎ We had white protective suits that covered our whole body，helmets，big boots and special gloves.‎ 我们都穿着白色的防护服遮住全身，戴上了头盔和特别的手套，还穿了一双大靴子。‎ ‎【观察探究】‎ ‎(1)Li Hua bought a business suit in the supermarket last night.‎ 昨天晚上李华在超市买了一套公务服装。‎ ‎(2)Choose a computer to suit your particular needs.‎ 选一台适合你自个儿需要的电脑。‎ ‎(3)If we met at 8，would that suit you?‎ 我们八点钟见面，你方便吗？‎ ‎(4)I don't think this coat really suits you.‎ 我觉得这件大衣不大适合你穿。‎ ‎(5)This hot weather doesn't suit me.‎ 天这么热，我真受不了。‎ ‎(6)—I will stay in this evening.‎ 今晚我就不出去了。‎ ‎—Suit yourself.随你的便。‎ ‎【归纳总结】‎ ‎ suit n．一套外衣，套装；v.适合；对某人方便；(尤指服装，颜色等)相配，合身；适宜；有利于；自便；随便 ‎【知识链接】‎ ‎ suitable adj. 合适的；适宜的 ‎ suitability n. 适合 ‎ suitcase n．手提箱 ‎【即景活用】‎ ‎ He can be very helpful，but only when it suits him.(翻译)‎ Suggested answer：有时候他非常乐意帮忙，不过那得他觉得合适。‎ ‎6．potential(P35)‎ ‎【原句再现】‎ ‎ Having studied volcanoes now for many years，I am still amazed at their beauty as well as their potential to cause great damage.‎ 虽然我从事火山研究很多年了，但是我对火山的壮丽景色以及它们那潜在的巨大破坏力至今仍然感到惊愕不已。‎ ‎【观察探究】‎ ‎ (1)She has artistic potential as an artist.‎ 她有做艺术家的潜质。‎ ‎ (2)He studied the German market to find the potential there for profitable investment.‎ 他对德国的市场进行了研究以寻求投资获利的可能性。‎ ‎ (3)The book is arguably a potential best seller.‎ 这本书或可成为一本畅销书。‎ ‎ (4)This is a machine with several potential uses.‎ 这是一台具有多种潜在功能的机器。‎ ‎【归纳总结】‎ ‎ potential n. 意为“潜能；潜力；潜在性；可能性”，后常接介词for；‎ adj. 意为“潜在的；有可能的”，常作定语。‎ ‎【即景活用】‎ ‎ People who don't smoke have less ______ of suffering from lung cancer than those who do so.‎ A．potential B．cause ‎ C．hope D．choice Suggested answer：A ‎7．actual(P35)[来源:学科网ZXXK]‎ ‎【原句再现】‎ ‎ Why is the lava that flows on Mount Kilauea more dangerous than the actual eruption?‎ ‎ 为什么在基拉韦厄火山上流淌的火山熔岩比实际的火山爆发更危险？‎ ‎【观察探究】‎ ‎ (1)The actual cost was much higher than we had expected.‎ 实际成本比我们预计的要高得多。‎ ‎ (2)Tom looks younger than his wife but in actual fact he is several years older.‎ 汤姆看起来比他妻子年轻，但实际上他比妻子大好几岁。‎ ‎ (3)The wedding preparations take weeks but the actual ceremony takes less than an hour.‎ 准备婚礼要几周，而婚礼仪式本身还不到一小时。‎ ‎【归纳总结】‎ ‎ actual adj. 真实的；实际的(强调事情最重要的部分)；真正的；……本身 ‎ in actual fact＝really ‎【即景活用】‎ ‎ What were his actual words？(翻译)‎ Suggested answer：他实际上是怎么说的？‎ Ⅱ.重点知识探究 ‎1．erupt(P33)‎ ‎【原句再现】‎ It shows a volcano erupting.它展示了一次火山爆发。‎ ‎【观察探究】‎ ‎(1)Mount Vesuvius hasn't erupted for a good many years.‎ 维苏维火山已有很多年没有爆发了。‎ ‎(2)His face erupted in pimples.‎ 他的脸上长出了很多粉刺。‎ ‎(3)Violence erupted after the football match.‎ 足球赛后发生了暴力行为。‎ ‎【归纳总结】‎ erupt vi. 突然发生，爆发；火山爆发 ‎【知识链接】‎ erupt into laughter/shouting/crying 突然大笑/叫喊/大哭起来 ‎ 同根词 eruption n．火山爆发；(战争等)爆发 ‎【即景活用】‎ ‎(1)汉译英：‎ Todd常常会莫名其妙地大笑起来。‎ ‎(2)用erupt的正确形式填空：‎ The volcano is in active ______.‎ ‎(3)选择正确答案：‎ A lot of lava had ______ from the volcano to bury the entire village.‎ ‎ A．erupted B．given out ‎ C．burst out D．sprung up Suggested answers：‎ ‎(1)Todd often erupts into laughter without any reason.　(2)eruption　(3)A ‎2．evaluate(P34)‎ ‎【原句再现】‎ Having collected and evaluated the information...‎ 收集和评估了这些信息之后……‎ ‎【观察探究】‎ ‎(1)I can't evaluate his ability without seeing his work.‎ 没有看到他的工作情况，我无法评价他的能力。‎ ‎(2)You should evaluate your chances of success before making a decision.‎ 做出决定之前，你应该估计成功的几率。‎ ‎(3)The new drug is being evaluated in clinical trials.‎ 新药正在临床实验鉴定中。‎ ‎【归纳总结】‎ evaluate v．评估，评价，估计；鉴定[来源:学§科§网Z§X§X§K]‎ ‎【知识链接】‎ ‎(1)evaluation n. 评价，估价 ‎(2)estimate，appraise，value，evaluate，assess和appreciate 的区别：‎ estimate表示的“估计”或“估价”只是猜测，多多少少有些不准确的估计，甚至只是一种想法。 ‎ appraise 表示的“评价”是行家和专家的“估计”，常用于估计某物的价值或市场价格，也可用于评审某物的质量，或估计某人的才能等。‎ value与appraise的含义很近，即“估计某物的价值、价格”。其区别在于appraise强调“行家”的估计，而value用于一般人所作的“估计”。‎ evaluate表示通过仔细的考察对能力、成就或等级等进行判断、评估、鉴定。‎ assess的原义是对某商品进行估价，以期决定应收多少税。词义引申之后，assess通常表示“估计”出某物的价值，以更有效地利用它。 ‎ appreciate 是前面这几个词的近义词，它的意思是“鉴赏”，即充分了解某物或某人的价值或才能，以期批判地欣赏或赏识。appreciate的同义词应为value，treasure，cherish。[来源:学。科。网]‎ ‎【即景活用】‎ ‎(1)It's impossible ______these results without knowing more about the research method.(用evaluate的适当形式填空)‎ ‎(2)Tom attempted an honest ______of his own life.(用evaluate的适当形式填空)‎ ‎(3)The research project has only been under way for three months，so it's too early to ______ its success.‎ ‎ A．evaluate B．estimate ‎ C．value D．weigh Suggested answers：(1)to evaluate　 (2)evaluation　(3)A ‎3．absolutely(P34)‎ ‎【原句再现】‎ It was an absolutely fantastic sight.‎ 这真是绝妙的奇景。‎ ‎【观察探究】‎ ‎(1)It's absolutely impossible.这是绝对不可能的。‎ ‎(2)He did absolutely no work at all.他简直什么都没干。‎ ‎(3)—Don't you agree？你不同意吗？‎ ‎—Oh，absolutely! 奥，当然同意！‎ ‎(4)Kate is absolutely frightened of the tiger.‎ 凯特极其害怕老虎。‎ ‎【归纳总结】‎ absolutely adv. 绝对地，完全地；正是，当然，对极了(常用于口语中)；极其，非常 ‎【知识链接】[来源:学科网ZXXK]‎ absolute adj. 意为“纯粹的，完全的，绝对的”，没有比较级；不能被very修饰，‎ 但是可以用nearly修饰。‎ ‎【即景活用】‎ ‎(1)—Do you agree with me?‎ ‎—______.‎ ‎ A．Very absolutely B．Rather absolutely ‎ C．Nearly absolutely D．No absolutely ‎(2)The employees have not been paid ______ since the new manager took over this company last month.‎ A．regularly B．normally ‎ C．absolutely D．ordinarily Suggested answers：(1)C　(2)A ‎4．burn to the ground(P34)‎ ‎【原句再现】‎ Unfortunately，we cannot move their homes out of the way，and many houses have been covered with lava or burned_to_the_ground.‎ 遗憾的是，我们不可能把他们的家搬离岩浆流过的地方，许多房屋被熔岩淹没或者焚烧殆尽。‎ ‎【观察探究】‎ The whole city was burned to the ground.‎ 整座城市都被烧光了。‎ ‎【归纳总结】‎ burn to the ground ‎ ‎(be) burn(ed) to the ground(楼房等)被烧毁/被焚烧殆尽 ‎【知识链接】‎ ‎(1)burn v. 燃烧，着火，烫伤，发光 The soup was so hot that it burned my mouth.‎ 这汤很热，烫伤了我的嘴。 ‎ The sun burns bright in the sky.‎ 太阳在天空中明亮地照耀着。‎ Dry wood burns easily.干柴易燃。‎ ‎(2)burn...to death 把……烧死 ‎(3)burn off 烧掉某物 ‎(4)burn down 把……烧成平地；渐渐烧完 ‎(5)burn up 烧掉；烧起来，旺起来 ‎(6)burn away 逐渐烧掉 ‎(7)burn out 烧光，烧完 ‎【即景活用】‎ 用burn构成的词组填空 ‎(1)He ______ all the old letters.‎ ‎(2)His hair was ______ in the fire.‎ ‎(3)In the accident，two of the workers ______.‎ ‎(4)The building was ______ and only ashes were left.‎ Suggested answers：(1)burnt up　(2)burnt off　(3)were burnt to death　(4)burnt down ‎5．make one's way(P35)‎ ‎【原句再现】‎ It was not easy to walk in these suits，but we slowly made_our_way to the edge of the crater and looked down into the red，boiling centre.‎ 穿着这些衣服走起路来很不容易，但我们还是缓缓往火山口的边缘走去，并且向下看到了红红的沸腾的中央。‎ ‎【观察探究】‎ ‎(1)He made his way towards the museum.他向博物馆走去。‎ ‎(2)Ham began to make his way in politics.汉姆逐渐在政界有所建树。‎ ‎(3)The police made their way in the crowd.‎ 警察在人群中挤出一条路。‎ ‎【归纳总结】‎ make one's way意思是“向前，前往；获得成功；挤出一条路”，后面常常接to或towards。‎ ‎【知识链接】‎ make way (for)(为……)让路；让位 feel one's way(在黑暗中)摸索着走 find one's way 找到出路，设法到达 ‎ go one's way 出发，动身 lose one's way 迷路 ‎ push one's way 跻身前行 by the way 顺便说说，顺便提起 in the way 当道，碍事 ‎【即景活用】‎ ‎(1)If you want to ______you must learn to work hard while you are still young.‎ A．make your way B．make its way ‎ C．make a way D．make the way ‎(2)Her parents told her not to ______when she picked up mushrooms in the forest.‎ A．find her way B．go her way ‎ C．lose her way C．feel her way ‎(3)—______，can you go with me?‎ ‎—OK，I'll go with you.‎ A．By the way B．In the way ‎ C．Out of the way D．Give way Suggested answers：(1)A　(2)C　(3)A Ⅲ.词汇综合运用 ‎1．用括号中所给的单词或短语翻译下列句子。‎ ‎(1)后来，他被任命为队长。(appoint)‎ ‎(2)事实上，他对这种自然灾害极其害怕。但是，他还是决定前往灾区。(in actual fact，absolutely，make one's way)‎ ‎(3)火山旁边的许多树木和房子被熔岩淹没，或者被焚烧殆尽。(alongside，burn to the ground)[来源:学_科_网]‎ ‎(4)火山熔岩像波涛一样顺着山坡缓慢流下来。(wave)‎ ‎(5)他穿着白色的防护服遮住全身，戴上了头盔和特别的手套，还穿了一双大靴子，并且随身携带了一些设备。(suit，helmet，boot，equipment)‎ ‎(6)他在那种恶劣的环境中日夜工作。看到他的工作情况，当地人高度评价他的能力和潜能。(evaluate，potential)‎ ‎(7)去年，汤姆正在看电视，他突然看到了火山爆发。(erupt)‎ Suggested answers：‎ ‎(1)Later，he was appointed captain.‎ ‎(2)In actual fact，he was absolutely frightened of this natural disaster.But he decided to make his way towards the disaster area.‎ ‎(3)Many trees and houses alongside the volcano have been covered with lava or burned to the ground.‎ ‎(4)The lava flowed slowly like a wave down the mountain.‎ ‎(5)He had white protective suits that covered his whole body，helmets，big boots and special gloves and took some equipment with himself.‎ ‎(6)He worked in the bad condition day and night.Seeing his work，local people highly evaluated his ability and potential.‎ ‎(7)Tom was watching TV when he saw a volcano erupting last year.‎ ‎2．连句成篇(按照一定的逻辑顺序适当调整句子的顺序，把上面的句子连成一篇小短文，必要时增加适当的连词。)‎ ‎________________________________________________________________________‎ ‎________________________________________________________________________‎ ‎________________________________________________________________________‎ ‎________________________________________________________________________‎ ‎________________________________________________________________________‎ ‎________________________________________________________________________‎ ‎________________________________________________________________________‎ ‎________________________________________________________________________‎ Suggested answers：‎ Tom was watching TV when he saw a volcano erupting last year.The lava flowed slowly like a wave down the mountain.Many trees and houses alongside the volcano have been covered with lava or burned to the ground.In actual fact，he was absolutely frightened of this natural disaster.But he decided to make his way towards the disaster area.He had white protective suits that covered his whole body，helmets，big boots and special gloves and took some equipment with himself.He worked in the bad condition day and night.Seeing his work，local people highly evaluated his ability and potential.Later，he was appointed captain.‎ Step 5　Sentence focus ‎1．Having collected and evaluated the information，I help other scientists to predict where lava from the volcano will flow next and how fast.(P34)‎ 收集和评估了这些信息之后，我就帮助其他科学家一起预测下次火山熔岩将往何处流去，流速是多少。‎ Having collected and evaluated the information是现在分词短语，在句中用作时间状语，相当于一个由when 引导的时间状语从句When I have collected and evaluated the information。现在分词短语在句中还可以用作原因状语、让步状语等等。如：‎ ‎(1)Having worked hard all day，I went to bed early.‎ ‎＝Because I had worked hard all day，I went to bed early.‎ ‎(2)Having been told many times，he still repeated the same mistakes.‎ ‎＝Though he had been told many times，he still repeated the same mistakes.‎ 另外，predict后是由where和how引导的两个宾语从句。‎ ‎2．I was about to go back to sleep when suddenly my bedroom became as bright as day.(P34)‎ 我刚要再睡，突然我的卧室亮如白昼。‎ be about to...when...意为“正要……这时……”，其中when相当于at this/that time，类似的句式还有be doing...when...“正在做……突然……”；had done...when...“刚做完……这时(那时)……”。例如：‎ ‎(1)The sports meeting was about to begin when it rained heavily.‎ 运动会刚要开始，这时天开始下起了大雨。‎ ‎(2)I was reading when he broke in.我正在读书，他突然闯了进来。‎ ‎3．The other two climbed down into the crater to collect some lava for later study，but this being my first experience，I stayed at the top and watched them.(P35)‎ 另外两个人攀下火山口去收集供日后研究的岩浆，但是我是第一次经历这样的事，所以留在山顶上观察他们。‎ this being my first experience 是独立主格结构，在句中作原因状语。再如：‎ It being a very hot day，we decided to go swimming.‎ ‎＝Because it was a very hot day，we decided to go swimming.‎ Step 6　Using words and expressions Turn to Page 70.Ask students to do the exercises in Using Words and Expressions in the Workbook.The following procedures may be followed：‎ ‎1．Go through the first two exercises with students and make sure they know what to do.‎ ‎2．Give students several minutes to finish them individually.‎ ‎3．Check the answers with the whole class.‎ Step 7　Homework ‎1．Finish off the Workbook exercises.Do Exercise 3 in the exercise book.‎ ‎2．Learn the useful new words and expressions by heart.‎ Step 8　Reflection after teaching ‎________________________________________________________________________‎ ‎________________________________________________________________________‎ ‎________________________________________________________________________‎ ‎________________________________________________________________________‎