译林牛津版必修五Unit3-project教学课件(共48张ppt).ppt

Unit 3 Science and nature Project,1. Improve students ability and provide practice； 2. Master and use some useful words and expressions； 3. Have a debate to express and support your opinions.,Are they beautiful?,Man and nature,clear-cut logging,opencast mining,slash and burn farming,As a result of mankind and technology, natural resources have been seriously affected and natural disasters attack us frequently!,desertification,drought,acid rain,flood,How do people harm nature? 2. Do you think the problem of humans winning and nature losing can be settled?,People have harmed nature through agriculture, fishing, hunting and tourism.,Yes, it should not be a question of humans winning and nature losing.,Read the first passage on Page 58 and then answer the following questions:,Fast reading,Read the article and give the main idea for each paragraph.,_ have been seriously affected by carelessness.,_ towards the problem.,Natural resources,Different attitudes,Careful reading,Humans are moving towards _.,Humans can only really win by _.,an important point in the relationship with nature,protecting nature,Paragraph 1,Further reading,The ways people over develop Earths resources:,?,Paragraph 2,Different attitudes towards the problem.,Use nature to meet our needs,Only a clean environment can benefit us all.,T or F 1. Both poorer and developed nations pay more attention to economic development but less to the environment. 2. Because of everyday needs, many poorer nations are using up natural resources rapidly. 3. Developing and developed countries should work together to make people have healthy and productive lives, suffering the environment . 4. Humans are moving towards an important point of understanding in the relationship with nature.,T,F,T,F,Poorer nations pay more attention to economic development while developed nations do things in a different way,Developing and developed productive lives, without the environment around them suffering,The main idea： A. Through the development of economy, nature will become better at the same time. B. Human can really win by protecting nature. C. Just protect nature, then man will have a better future.,Paragraph 4,B,1. What have people done to nature? 2. If we continue in this way, what might happen?,They have done a lot to destroy and damage nature.,The planet we live on will be eventually destroyed.,Read the passage again and then answer more questions.,3. What different attitudes towards environmental conservation do they have?,If we focus only on environmental conservation, then people may suffer. Should the economic development be stopped in favour of nature? We are only doing what humans have always done, using nature to meet our needs.,One side:,Such thinking may cause a catastrophe, unless we start to look around and understand how a clean environment benefits us all.,The other side:,4. What is the attitude of poorer nations towards the problem? What about the attitude of developed nations?,Many developed nations are now concerned about saving nature while many poorer nations pay more attention to economic development but less to the environment.,For a long time, our _ _ have been seriously affected by people in many ways such as _, _, _, tourism and so on. In order to live, people have to use nature to _ needs. But if we only focus on _ _, then people may suffer. Fortunately, humans are moving towards an important point of _ in the relationship with nature.,natural,resources,agriculture,fishing,hunting,environmental,conservation,understanding,meet,Summary,Both_ and _ countries should work together to ensure that people enjoy _ and _lives, _ the environment around them suffering. Humans can only really win by _ _. Its mankinds responsibility to find _ that are _ for everyone and everything.,healthy,happy,without,protecting,nature,solutions,acceptable,developing,developed,Group work,As far as we are concerned, what can we do to help protect nature?,Fast reading,How can a plant or an animal be genetically modified?,GM food: hope or danger?,First, new material can be inserted into its DNA to give the plant or animal qualities which it would never have in nature. Second, material can be taken from the DNA of a plant or an animal in order to remove qualities which are not desired.,GM food,What is GM food? How is food genetically modified?,food that has been genetically modified To insert new material into its DNA; To take undesired material from its DNA,Careful reading,Hope,Danger,GM plants are able to defend themselves against pests and disease better. GM plants are healthier and have larger harvests.,GM food could be dangerous for people to eat. GM food could be unsafe for the environment.,Discuss the collected information and tick the strong points to be the start and the end. Make a list of all your points. Think about the opposite points and think about how to argue against them.,Preparing,Having a debate,Practise in your group to check everyones task. Practise many times to make it better. Decide the time of each section.,Producing,Presenting,Present the debate in front of class. Display your research on the wall when debating. Make rules of winning before the debate and check which group wins in the end.,Would anyone say that development should be stopped in favour of nature? 难道我们为了保护自然就应该停止发展吗？,1. in favour of 有利于;赞同（接名词、代词和动名词）,Im in favour of your plan. 我赞同你的计划。 Most people voted in favour of the candidate. 大部分人都投票支持这个候选人。,Language points,【拓展】,ask a favour of sb. 拜托某人 do sb. a favour = do a favour for sb.帮助某人 find favour with a person 受青睐 favour sb. with sth. 对某人施恩惠,When asked about their opinions about the schoolmaster, many teachers would prefer to see him step aside _ younger men. in terms of B. in need of C. in favour of D. in praise of,C,From the point of view of some people, we are only doing what humans have always done, using nature to meet our own needs. 根据有些人的观点，我们只是在做人类一直在做的事情，利用自然满足我们自己的需求。,2. point of view 观点；着眼点,We should tune them in to our point of view. 我们应让他们了解我们的观点。,【辨析】,view / opinion / idea (1)view侧重于对比较广泛、重大或者有关公众问题所采取的态度，是比较固定、系统、全面的见解 (2)opinion是对某事或某人持有的看法或舆论 (3)idea是处理某事的计划、判断、理解或对其实现之可能性进行评测。,using nature to meet our own needs是现在分词短语在句中作状语，表示方式。,People developed a way of printing, using rocks.但是以后，人们利用石块发展了印刷术.,Please answer the question using another way.请用另一种方式回答这个问题。,The sun began to rise in the sky, _ the mountain in golden light.(2013湖南高考) A. bathed B. bathing C. to have bathed D. have bathed,【解析】选B。考查非谓语动词。动词bathe与主语the sun之间为主动关系，且表示进行，故选B。,While many people are excited about these new technologies, these same technologies frighten others. 尽管许多人对这些新技术感到兴奋，但其他人则对这些同样的技术感到害怕。,while 意为 “尽管；虽然”。,While I admit his good points ，I can see his shortcomings.,While he loves his students, he is very strict with them.,_ I always felt I would pass the exam, I never thought I would get an A. A. While B. Once C. If D. Until,【解析】选A。句意：尽管我老觉得我会通过考试，然而，我从来不曾想过会得“A”。根据上下文可以看出，题干需要一个引导让步状语从句的连词。while在这里等于though。,4. Nowhere is this truer than with genetically modified (GM) food. 转基因食品就是最好的例子。,这是一个倒装句否定副词nowhere置于句首时，构成了倒装句。当否定副词置于句首时，句子需要倒装。常见的副词有：not、never、seldom、hardly、nowhere等。,Seldom do I go to work by bus. 我很少乘公共汽车上班。,Not once _ to Michael that he could one day become a top student in his class. A. occurred it B. it did occur C. it occurred D. did it occur,【解析】选D。考查倒装。否定词（短语）放于句首，句子要部分倒装，此处即将助动词did放于主语it之前。故答案选D。,We further damage earth by constructing new water construct: v. 建造，建设，构造 construction n. 建造，建设 constructive adj. 有建设性的，有帮助的 under construction 正在修建 The story is skillfully constructed. 故事的构思相当巧妙。,2. development should be stopped in favour of nature? in favour of: 有利于，赞同（接名词、代词和动名词） ask a favour of 拜托某人 do sb. a favour = do a favour for sb. 帮助某人 find favour with a person 受青睐 favour sb. with sth.对某人施恩惠,3. From the point of view of sb point of view :观点，着眼点 view: n. 观点，看法，见解 辨析：view / opinion / idea view侧重于对比较广泛、重大或者有关公众问题所采取的态度，比较固定、系统。全面的见解； opinion是对某事或某人持有的看法或舆论 idea是处置某事的计划、判断、理解或对其实现之可能性进行评测,He holds an opinion opposite to our. 他持有与我们相反的意见。 Do you have any idea of what Im trying to explain?你知道我努力要解释的是什么吗？ Different social classes hold different political views.不同的社会阶级有不同的政治观点。,4. Other people argue that argue: v. 争辩，辩论，主张 argue with sb. about /over sth. 因某事同某人争论 argue for / against sth. 为赞成或反对某事而争辩 argue that 主张 argu