| 高三复习Unit 24(book2) |
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RSEFC 2A Unit 9 Saving the earth 教材分析 本单元的中心话题为“拯救地球”，通过课堂导入引出水污染、空气污染、环境破坏，乱砍乱伐树木等环境问题，围绕这一主题，结合听、说、读、写的训练达到熟悉话题表述，语言熟练应用，能运用所学知识就环境问题展开讨论，在口头上和笔头上阐述自己的观点，达到语言输出的目的。 “热身”（Warming up）部分，运用图片导入法，通过对所展示图片的讨论，引出环境保护、拯救地球的主题，初步了解学生对现状、原因、解决办法的掌握程度，并通过提问了解学生对本单元学习内容、学习策略、学习途径的愿望，以便教师及时调整其后课堂教学的内容、难度、和深度的把握。 “听力”训练由两大部分组成，分别安排在“听力”（Listening）和“综合技能”（Integrating Skills）两个部分。前者又由两部分组成，第一部分为纪念“世界地球日”活动上的讲话，阐述了保护水资源的必要性和紧迫性。第二部分围绕保护水资源的主题，介绍了如何保护水资源的具体措施；后者，作为综合语言运用部分，听力内容主要为其后的写作作为铺垫，除了敏锐捕捉语言信息以外，学生还需要了解发言稿的开篇、论证、以及结束。 “阅读”（Reading）着重介绍世界地球峰会的由来，详细描述了2002年南非约翰内斯堡地球峰会的召开情况，展示了“可持续发展”这一主题，会上大多数代表所涉及的“世界三大杀手（被污染了的饮用水、简陋的卫生设备和空气污染，以及贫困、战争、和暴乱，指出世界的顺利发展，取决于各国的和平相处、互相合作、互相促进、共同进步，最后文章还阐述了世界地球峰会的作用和意义。 “语言学习”（Language Study）要求学生利用构词法的知识，灵活运用词形变化进行正确运用，在第二部分要求学生正确辨别－ly结尾词的词性。 “语法”（Grammar）通过对倒装形式的总结，全面了解倒装的具体结构和应用，结合句型转换和选词填空练习，帮助学生掌握这一语法现象。 “综合技能”（Integrating skills）采用高一课本中未曾出现过的展示方式，选用听力方式展示写作模式，通过口头讨论等方式，巩固学生对本单元知识的掌握，从而有效地指导学生进行写作练习， 并通过Unit 2中的checklist对所写的书面表达进行修改。 教案范例 Period 1 Warming up, listening and Speaking I. Goals: 1. To make Ss know pollution and present situation throughout the world and encourage them to find solutions to this problem. 2. To encourage Ss to activate the relevant vocabulary. 3. To develop Ss' speaking by practicing supporting an opinion. II. Teaching procedures Step 1 Warming up 1. Greetings 2. Talk about the pictures Present the students a series of pictures to assure them how serious the pollution is and ask them some questions about these pictures. ⑴ ⑵ ⑶ ⑷ ⑸ ⑹ Q1: What can you see in these pictures? How does it happen? Q2: What causes the problem? Q3: What are the biggest problems facing the earth? Why do you think so? Q4: Have you ever done something bad to the environment? Q5: Can you give me more examples that happened in people's daily life and is bad for the environment? Step 2 Listening 1. Lead in More and more people are realizing the damage that is being done the environment and learning more and more harm that the environment is doing to our human inhabit. People are celebrating International Earth Day, when varieties of activities are held so that more people will be involved in environment protection. 2. While-listening Listen to Part 1 and answer the questions. 1) Why is she giving this speech? 2) What does she think the most serious problem is? 3) What does she say that we should do about it? 4) What do you think she will say next? Listen to Part 2 and fill in the blanks with what Ss hear. Argument 1: We should _____________. We must _________________________. We should _______________________. If we _______, we ________________. Argument 2; _______________________ Problem: _______________________ Solutions: _______________________ 3. Post-listening Pair work: Infer what the speaker will say next, list like the above one and share the speech with the partner and the class. Group work: Discuss with group members about the measures that we may take to protect air, forest; animals; grassland. Ask Ss to deliver their speech on environment protection. Step 3 Speaking 1. Talking about what Ss can see in the picture. (1) (2) Q1: What is being piled in the picture 1? Q2: What can coal be used for? Q3: What is being giving off from the workshop? Q4: What is being polluted? Every coin has two sides. It is true with coal, which is a valuable resource that can be used to produce energy, but it can also cause serious pollution. 2. Group work: A debate Coal is/isn’t a valuable resource. pros cons A businessman An environmentalist A scientist A local citizen A local leader … … Period 2 Reading Welcome to the Earth Summit I. Goals: 1.To promote the students' understanding of the text 2. To get the students to grasp the detailed information of the text 3. To enable the students to master some words and expressions 4. To improve the students' reading ability II. Teaching procedures Step 1 Warming up Ask the students some questions connected with pollution Q1: Did you use to go swimming in a river when you were young? What about the children today? Why not? Q2: Do you use one-off chopsticks while having fast food? Q3: How do you deal with the plastic bags? Q4: What do you think of the air today? Q5: What do you think of the relationship between economy development and pollution? Step 2 Pre-reading 1. Discussion Read the title and discuss in pairs what problems will be discussed at the summit. (As the title states, problems related to the earth will be discussed at the summit, like air, water, forest, desert, grassland, etc) 2. Prediction Group work: Fill in the chart with what Ss predict about what each part of the text will be about. Introduction Body Conclusion 3. Problem-solving Go through the whole passage and compare whose guess is the closest to the content of the passage. 4. Find the answers to these two questions. Q1: When and where was the Earth Summit held? (In 2002 in Johannesburg in South Africa.) (Premier Zhu Rongji; Stressed the need for quality and fairness in the world. ) Step 3 While-reading 1. Individual work Get the students to read the text carefully and ask some students to answer the following questions in their own words. Q1: What was the meeting held in 1972 about ? Q2: What's the main theme of the Earth Summit? Q3: Do you know the 'big three’? What are they? Q4: Where do you think usually has 'the big three'? Why? Q5: What does global development mean nowadays? What should developed countries actually do? Q6: What's the use of conferences like the Earth Summit? Q7: What's the key to the future? As a student, what should you do? 2. Reading for information Introduction Name The Earth Summit When In 2002 Where Johannesburg, south Africa Theme Sustainable development How to continue developing the world without damaging the environment Body The “big three” Contaminated drinking water; 20% Poor sanitation: Air pollution: three million deaths; in rural areas in developing countries Global development Equality Each country takes part in Fairness International cooperation Rich counties help poor countries; Prosperity of developing countries; Possible sustainable development Conclusion Impact 1. help to understand the existing serious problems 2. there’s still time to take action 3. change the way we live to save the earth 4. Ss are learning “earth issues” 5. a place to find solutions for the future Step 4 Post-reading 1. Retelling Suppose you were the Chinese girl who attended the Earth Summit, tell what she heard and saw at the Summit. Begin with “Hello, everyone. I’m the luckiest girl to attend the 2002 Earth Summit in Johannesburg. Now let me tell you about the summit. …” 2. Interview Ss work in pairs, playing the role of a newspaper reporter, attendants from different continents attending the Earth Summit. Finally the teacher invites some pairs to act out their interview 2. Design the coming Earth Summit Group work: Task: Prepare the coming Earth Summit Arrangement: S1: organization S2: Prepare necessities for the Summit S3: Mess media S4: Attendants invited S5: budget S6: Transportation & accommodation Have Ss present the preparations for the Summit in groups. Period 3Language Study & Grammar I. Goals: 1. To get Ss to learn and master the usages of the new words and the useful expressions in this unit. 2. To enable Ss to grasp the grammar: Inversion. II. Teaching procedures: Step 1 Warming up 1. Greetings 2. Play a guessing game: first some items are shown on the screen, and each item is the paraphrase of one new word. Divide the class into four groups. Ss are encouraged to guess the word as quickly as possible. This game is to enlarge Ss’ vocabulary. (1) To make a place or substance dirty and dangerous by adding sth to it. (2) To make a short statement giving only the main information and not the details of a plan, report etc. (3) The situation or experience of being poor. (4) A position or situation in which people have the same rights, advantages. (5) To do sth in order to protect someone or sth from being attacked (6) To do sth that produces an effect or change in someone or sth (7) .Behavior that is intended to hurt other people physically (8).Not right or fair (9).Sth that you can choose to do or use instead of sth else contaminate, summarize, poverty, equality, defend, affect; violence, unfair, alternative ) Complete the following sentences with the words from the bracket, using the correct form. 1. According to the report, the environment has become a major _______ worldwide. One in five children before age five die from diseases caused by environmental problems. ( kill ) 2. Internet use has been spreading at a(n) _________ speed in China. “Have you surfed the net?’’ has become a more common greeting than the traditional “ Have you eaten?’’ ( alarm ) 3. The word “netizen”, which means a person who uses the Internet, comes from “net” and “________”. ( city ) 4. During the interview, the young man asked about the job ____________ as a sales manager. ( responsible) 5. How many Chinese ______________ will be sent to the international meeting in Stockholm, Sweden? ( represent ) 6. The people who listened to the report were shocked by the ________ of the villagers. ( suffer ) 7. It was there people’s __________ to work hard and well that impressed me most. ( willing ) ( possible answers: killer, alarming, citizen, responsibility, representatives, suffering, willingness ) Step 3 language points and useful expressions 1. Attend: 出席，上（大学等），照料 •To go to an event such as a meeting eg: Only 7 people attended the meeting. •To go regularly to a school, church etc eg: All children between the ages of 5 and 16 must attend school. •To look after someone, especially because they are ill eg: The nurse attended the patient daily.attend to sb/sth 处理，照应 eg: I may be late – I have got one or two things to attend to. Are you being attended to in a shop? Then do some exercises to enable Ss to distinguish the following words: attend / join / join in / take part in / join sb in sth Ex: Fill in the blanks with the expressions given. 1. He’ll _________ an important meeting tomorrow. 2. Almost all the teams in our school __________ the basketball match. 3. My wish is to ________ the army after graduation. 4. We’ll _______________ social activities during the summer vacation. 5. They didn’t ___________ the wedding. 6. I ________ the party last year. 7. Our headmaster will _______ us ____ the discussion this afternoon. ( possible answers: attend, join in, join, take part in, attend, joined, join in ) 2. take notes: 作笔记，记录 take action: 采取行动 Eg: Do you takes notes of the lectures? He sat quietly in the corner taking notes carefully. They took action to stop him. The police took action to deal with this thing immediately. The medicine will not take action for several hours. 开始起作用，见效，生效 The pill takes effect as soon as you swallow it. •take turns •take measures/steps •take place •take care •take medicine •take time •take cold •take notice •take sides Eg: You always takes sides with him without even listening to me. 3. content: 1). n. 内容，目录 (常作 ~ s ) ; 容量，容积 Eg: the contents of a book a table of contents Look up the contents at the beginning of the book. a bucket of more than usual content 2). Adj. 满足的，满意的 be content to do sth be content with sth content oneself with sth He is quite content to watch TV for hours. I’m very content with my life at present. As there’s no butter we must content ourselves with dry bread. access: 进入，接近 Eg: The dead-end street was the only access to her home. Access to the mountain-town is often difficult because of the bad roads. have access to : Eg: Twenty percent of the people on earth do not have access to clean drinking water. have sth that you can use Eg: The public don’t have access to the site. the right to enter a place Not until we know more will we be able to improve the situation. Until 的三种句式 I didn’t go to bed until my mother came back. （ 陈述句 ） v Not until my mother came back did I go to bed. （ 倒装句 ） It was not until my mother came back that I went to bed. （ 强调句 ）直到她母亲把一切对杰克和盘托出，杰克才明白她为什么跟自己生气。 1).Jack didn’t understand why she was angry with him until her mother told him everything. 2).Not until her mother told him everything did Jack understand why she was angry with him. 3).It was not until her mother told him everything that Jack understood why she was angry with him. A better understanding of the environment is necessary, as is the willingness to act. As 此处的用法与so相同。 Eg: He is a patriot, as are his bothers. David works hard, as do his classmates. Harry is unusually tall, as are his sisters. He believed, as did his family, that you were telling the truth. With better education, people will be able to build a better society in harmony with nature. in harmony with 与---- 协调 ,和谐 Eg: The color of the sofa is in harmony with the sitting room. He soon found himself in harmony with his new co-workers. Your suggestions are not in harmony with the aims of this project. …perhaps put an end to the death and suffering caused by the big three. put an end to 结束，毁掉 Eg: Winning the competition put an end to his financial problems. The discussion was put an end to by his sudden arrival. The wind put an end to the pier. wipe out : 擦洗---- 的内部，去除，消灭To make sth inside clean Eg: wipe out the coffee pot To destroy, remove, or get rid of sth completely Eg: wipe out the enemy’s major military targets Half the population was wiped out by this disease. informal ) to make you feel extremely tired Eg: The heat had wiped us out. And if poverty is less of a problem and people are better educated, there is a good chance that we will see ------- there is a good chance ( that ) ---- “有 可能发生某事 ”Eg: There is a good chance that I’ll finish the work tomorrow. There is a good chance ( that ) he will be gone by then. affect: vt.影响，感动，（疾病）侵袭 effect：n. 影响，效果，作用 Eg: This country was affected by draught. The amount of rain affects the growth of crops. The sight affected her to tears. It may be the effect of the illness. This accident had an effect on the future of both mother and son. •Not until we know more will we be able to improve the situation. •Only by changing the way we live can we save the earth. •Had I known that air conditioners cause so much pollution, I would never have bought one. •There exist serious problems and there is still time to take action. •Among the speakers was China’s then Premier Zhu Rongji. •A better understanding of the environment is necessary, as is the willingness to act. •Without international cooperation, developing countries cannot prosper, nor will sustainable development be possible. Study the structures of inverted sentences and g A. Here comes the bus. There goes the bell. Down he went. On the wall hangs a picture. B. Hardly had I got home when it began to rain. Never have I seen such a wonderful film. Step 6 Practice So neither nor as 1. Richer countries have a responsibility to protect the environment, ___________ the poor countries. 2. We shouldn’t waste so much water,________ we use things that are harmful to the environment. 3. Air conditioners cause much pollution,________ cars. 4. Many people are determined to change the way they live.___________ I. 5. I don’t buy products that cause pollution, ________ most people I know. 6. She is interested in environmental protection,________________ her mother. 7. If you don’t stay at the party,_____________ will I. 8. I can’t attend the meeting and _______________ you; we have some other work to do. 9. A: How old are you? B: Can you keep a secret? A: Sure. B: ______________ I. Possible answers: (so/as do, neither/nor should, so/as do, so/as am, neither/nor do, so/as is, neither/nor, neither/nor can, so/as am ) II. Rewrite the following sentences, beginning with the underlined part. 1. We will not have enough drinking water until we stop polluting our lakes and rivers. Not until_______________________________________________ 2. We can save the earth only by learning to live in harmony with nature. Only __________________________________________________. 3. I knew that air pollution causes almost three million deaths every year only after the meeting. Only___________________________________________________ 4. Sustainable development can only be possible with international cooperation. Only__________________________________________________. 5. The Earth Summit is not only a place to talk about problems, but also a place to find solutions for the future. Not only___________________________________________________. 6. People will be able to build a better society in harmony with nature only with better education. Only______________________________________________________. 7. We seldom think of the small changes that we can do to make a big difference. Seldom___________________________________________________. 8. I have never realized that water is so precious. Never ____________________________________________________.Try to be clean in our daily activities; c. Use environmentally safe products Dispose of trash properly Recycle household waste, yard waste, and hazardous chemicalsDon’t pour waste water into rivers and lakes without being cleaned.Recycle the used battery.Use paper bags instead of plastic bags. 2. Report the ways to stop pollution in class. I. 参考网址： http://www.unesco.org/water/water_celebrations/index.shtml （World Day for Water 2004） 6. http://www.un.org/esa/sustdev/index.html 7. http://www.un.org (联合国) 8. http://www.ukabc.org/wssd.htm 9. http://www.earthobservationsummit.gov 10. http://www.danknapp.com/speechcn.htm （how to plan and prepare a speech） II. 补充语法 倒装语序分为“全部倒装”和“部分倒装”。在全部倒装的句子中，整个谓语都放在主语的前面；在部分倒装的句子中，只是谓语中的一部分（如助动词、情态动词或系动词be等）放在主语前面，其余部分仍放在主语后面。一、由there, here 或now 等引起，谓语为come（或go）的句子，例如： There comes the bus! There goes the bell! Here comes Mary! Now comes your turn. 注：如果主语为人称代词，仍用自然语序，例如： There he comes! Here she comes! 二、由then 引起，谓语为come（或 follow）的句子， Then came a new difficulty. Then followed eight years of the Anti-Japanese War. 三、由here（或there）引导，谓语为be的句子 Here is China’s largest tropical forest. Here are some picture-books. 注：如果主语为人称代词，仍用自然语序， Here you are. / Here we are. / Here it is 四、由so引起的，表示前面所说的情况也适用于另一个人（或物）的句子，如： Society has changed and so have the people in it. He plays the violin quite well. So does my sister. 如果一个句子只是重复前面一句话的意思，尽管so用开头，语序也不要倒装 --It was cold yesterday.–-So it was! 五、由neither或nor引起的，表示前面所说 的情况也适用于另一个人（或物）的句子， -- I won’t do such a thing. –-Neither / Nor will I. -- I haven’t done my homework. –- Neither / Nor have I. If you don’t go, neither will I. I didn’t read the notice, nor did he. 六、在if引导的非真实条件句中，如有助动词had, should或were时，可以省略if，进行倒装， Had I come five minutes earlier, I would have met the famous scientist. (If I had come five minutes …) Should anyone call, tell him to wait for me here. Were I ten years younger, I would with you. Should you change your mind, let us know. 七、out, in, up, down, away等副词放在主语前,主谓倒装 Up flew the red balloon. Out rushed a policeman from among the crowd. 注：如果主语是一个人称代词，谓语仍放在后面，如： Away they went./ Down it flew. / Up it went.八、当as引导让步状语从句时，把表语提到前面来, 用“形容词（或副词、名词+ as +主语+谓语”这种形式 Child as he is, he knows a lot. Tired as he was, he continued to work. Hard as I work, I can’t catch up with you. Much as we like the place, we can’t stay here. 九、当always, often, many a time等词放在句首时，后面常用倒装语序，如： Always did he come to help us. Often did we warn them not to do so. Many a time did he go swimming in the river. 注：上述所说的词不放在句首，不用倒装语序。 十、only所修饰的副词、介词短语或状语从句放在句首时，其后面的主语部分要进行倒装，如： Only in this way can you hope to improve the situation there. Only then did I realize that I was wrong. Only once did his father discuss his future with him. Only yesterday did I realize what was going on. Only after he came back was I able to see him. 注：only修饰主语，仍用自然语序，如： Only socialism can save China. 十一、含有否定意义的副词、连词或短语构成的状语放在句首时，常用倒装语序 not, never, hardly, seldom, little, rarely, scarcely, not until, not only…but also…, neither…nor… no sooner…than…, hardly…when …, scarcely…when Never shall I forget the day. Not until I began to work did I realize Ihad wasted much time. Not only did he read the book, but also he remembered what he had read. No sooner had he arrived than he fell ill. Hardly / Scarcely had he arrived when he fell ill. 注：上面所说的词和词组如果不在句首，句子不必用倒装语序。 另外，not only…but also连接两个主语时, 不用倒装，如： Not only the students, but also the teacher wishes for a holiday. 十二、当so（或such）…that…结构中的so或such用于句首时，要采取倒装语序，如： So loudly did he speak that he was heard upstairs. So angry was he that he couldn’t speak. So hard does he study that he is the best in the class. Such was the force of the explosion that all the windows were broken. Such was his strength that he could bend iron bars. 注：such和be连用作表语时，也常用倒装语序， Such was the result. Such were her words. Such was the story he told.十三、在下列结构中也常用倒装语序： In front of them stood a great castle. On the bed lay a sick old man. Under the tree sat an old man. Seated on the ground are some young men. Lying on the floor was a boy. 典型例题： 1. Not until I began to work ______ how much time I had wasted. A. didn't I realize B. did I realize C. I didn't realize D. I realize 2. — Do you know Tom bought a new car? — I don't know, _______. A. nor don't I care B. nor do I care C. I don't care neither D. I don't care also 答案为B。 Not until 引导从句位于句首，后面的主句要倒装。 答案为B。句中的nor引出部分倒装结构，表示"也不"。由 so, neither, nor引导的倒装句，表示前一情况的重复出现。其中, so用于肯定句, 而 neither, nor 用在否定句中。 典型例题 — Why can't I smoke here? — At no time _______ in the meeting-room. A. is smoking permitted B. smoking is permitted C. smoking is it permitted D. does smoking permit 答案A. 这是一个倒装问题。当否定词语置于句首以表示强调时，其句中的主谓须用倒装结构。这些否定词包括no, little, hardly, seldom, never, not only, not until等。本题的正常语序是 Smoking is permitted in the meeting-room at no time. Not until the early years of the 19th century _______ what heat is. A. man did know B. man know C. didn't man know D. did man know 答案D. 看到Not until…的句型，我们知道为一倒装句，答案在C，D 中选一个。改写为正常语序为，Man did not know what heat is until the early years of the 19th. 现在将not提前，后面就不能再用否定了,否则意思就变了。 典型例题 No sooner _______ than it began to rain heavily. A. the game began B. has the game begun C. did the game begin D. had the game begun答案D. 以具有否定意义的副词放在句首时，一般采用倒装句(谓语前置)。这类表示否定意义的词有never, seldom, scarcely, little, few, not, hardly, 以及not only…but (also), no sooner…than, hardly… when scarcely… when等等。 注意：只有当Not only… but also连接两个分句时，才在第一个分句用倒装结构。如果置于句首的Not only… but also仅连接两个并列词语，不可用倒装结构。 Not only you but also I am fond of music. About World Day for Water The United Nations General Assembly adopted resolution A/RES/47/193 of 22 December 1992 by which 22 March of each year was declared World Day for Water, to be observed starting in 1993, in conformity with the recommendations of the United Nations Conference on Environment and Development (UNCED) contained in Chapter 18 (Fresh Water Resources) of Agenda 21. States were invited to devote the Day, as appropriate in the national context, to concrete activities such as the promotion of public awareness through the publication and diffusion of documentaries and the organization of conferences, round tables, seminars and expositions related to the conservation and development of water resources and the implementation of the recommendations of Agenda 21. hat is World Environment Day? World Environment Day was established by the United Nations General Assembly in 1972 to raise environmental awareness and to encourage action to protect the environment. IV. EARTH SUMMIT In 1992, more than 100 heads of state met in Rio de Janeiro, Brazil for the first international Earth Summit convened to address urgent problems of environmental protection and socio-economic development. The assembled leaders signed the Convention on Climate Change and the Convention on Biological Diversity, endorsed the Rio Declaration and the Forest Principles, and adopted Agenda 21, a 300 page plan for achieving sustainable development in the 21st century. The Commission on Sustainable Development (CSD) was created to monitor and report on implementation of the Earth Summit agreements. It was agreed that a five year review of Earth Summit progress would be made in 1997 by the United Nations General Assembly meeting in special session. This special session of the UN General Assembly took stock of how well countries, international organizations and sectors of civil society have responded to the challenge of the Earth Summit. |
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