江苏省新沂市第二中学高三英语 专题复习 Unit 3 Science versus nature（第4课时）教案 牛津译林版必修5.doc

unit 3 science versus nature课题 unit 3 science versus nature课型复习课教学目标把握考点，规范写作重点重点词汇，句型2,4,6难点规范写作教法讲授法、讨论法、探究法教学过程教 学 内 容 个案调整教师主导活动学生主体活动 forth periodproject 1: man versus nature for a long time, our environment has been damaged because humans have been careless. people have harmed nature through agriculture, fishing, hunting and tourism. we further damage earth by building new channels in the sea and factories on the land, and by creating pollution with chemical waste. we will some day destroy the planet we live on if we continue in this way.however, if we focus only on conservation, then people may suffer. not everything that is best for nature is good for people. would anyone say that development should be stopped in favor of nature? from the point of view of some people, we are only doing what humans have always done, using nature to meet our own needs. other people argue that such thinking may cause a catastrophe, unless we start to look around and understand how a clean environment benefits us all. after decades of destroying nature and using up natural resources, many developed nations are now concerned about saving nature rather than developing or destroying it. however, many poorer nations must focus on meeting the everyday needs of their people. in doing so, they are using up natural resources at a fast pace. they have not yet seen the effects of the careless use of the environment like many wealthy nations have. often they do not realize that the choices they make are bad for the environment. should they be blamed for destroying hundreds of thousands of acres of rainforest if it means a better income for their people? the developed and developing countries of the world need to work together to make sure that people enjoy healthy and happy lives, without the environment around them suffering. it should not be a question of humans winning and nature losing. humans can only really win by protecting nature. after all, food has to be produced in a healthy, natural system, and we all need clean air to breathe and pure water to drink. it is mankinds responsibility to find answers that are good for everyone, and everything.project 2: gm food: hope or danger?in recent years, there has been great progress in the study of genetics. with this progress, doors have been opened up to technologies that never existed before. while many people are excited about these new technologies, these same technologies frighten others. nowhere is this truer than with genetically modified (gm) food. there are two ways in which a plant or an animal can be genetically modified. 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. one aim of gm research is to produce food which will make us healthier. so far, this technology has been used to produce plants which are better able to defend themselves against pests and disease. supporters of gm food argue that gm plants are healthier and have larger harvests. while there has been research in gm animals such as pigs, no gm meat is being sold at present. many questions have been raised about gm food. no one really knows whether it is safe for animals or humans to eat. scientists admit that more tests should be done on gm food. research has been limited to increasing production profits, rather than making sure that gm foods are safe. gm food could therefore be dangerous to eat. there is also a question as to whether gm plants are safe for the environment. since gm crops are planted outside, they are part of the food chaininsects and other animals eat them or use their products, and these insects and animals will be eaten by yet other animals. no one knows what effects the gm material might have on the food chain. since no one really knows whether gm food is safe, many countries have hesitated to give permission for the production of gm foods, as they would rather be cautious with this new technology.step 1: read and learn listen to the text and grasp the general spirit of the text language focus: 1. consider vt. 考虑；认为考虑；认为知识探究：im considering changing my job. 我在考虑还份工作。were considering selling the house. 我们正在考虑卖掉房子。i consider what he said as reasonable. 我认为他说的有道理。 she considers it impolite to talk while eating. 她认为吃饭的时候说话是不礼貌的。he was generally considered to have invented the first computer.人们普遍认为是他发明了第一台计算机。we consider jack to have let out the secret. 我们认为是杰克泄露了秘密。归纳整理：consider作“考虑”讲时,其后可接名词、代词、动名词或宾语从句,也可接由how, what等引导的不定式,但不可直接接不定式。consider + n. / pron. consider + doing. consider +从句consider +疑问词+to do consider为“认为”时,后接that从句,复合宾语或带不定式的复合结构,但不可接动名词,结构表示如下：consider + that.consider +宾语+(to be/ as)+n./adj.consider + sb. to have done sth.consider + it + adj./ n.(+for sb.) to do sth.题练落实：b) 1. all the staff in our company are considering _ to the city center for the fashion show. a. to gob. goingc. to have gone d. having goneb) 2. columbus was considered _ the great land of america. a. to discoverb. to have discovered c. discovering d. having considered b) 3. -i cant stand jack. he is too inefficient! -nobody is perfect. try to be _ to others. a. consideringb. considerate c. considerable d. considered b) 4. _ his high social status, it is really hard for us to _ his joining us in going west to teach children there.a. considered; prevent from b. considering; opposec. to consider; persuaded. being considered; object tob) 5. he wasnt made president of the board of directors, _ not very popular with all its members.a. to be considered b. being consideredc. considering d. having considered解析：句意：他未被任命为董事会主席，因为人们认为他不太受成员欢迎。因为句子的主语与非谓语动词是动宾关系，应用现在分词被动式作原因状语。c、d项为主动形式，不定式结构表示将来的动作，与题意不符。c) 6. the car burns more fuel, but _ all things into consideration, its still a good car. a. taken b. having taken c. taking d. to take d) 7. you surely cant _ him to be a selfish man, for he is ready to help anyone in trouble. a. doubt b. remain c. advise d. consider b) 8. have you considered _ him for help? a. ask b. asking c. to ask d. asked d) 9. his inexperience, he has done a very good job, so you should give him something as a (an) _. a. considered; award b. given; reward c. regard; gift d.considering; prize a) 10. it always made us embarrassed that when we tried to greet him politely, we were still considered _ . a. to be rude b. being rude c. to being rude d. to have been rude解析: 此句中consider意为“认为”，其结构为：consider.(to be)+adj./n.联想拓宽：consider的名词形式是consideration,与其相关的常用词组有：out of consideration for出于对的考虑;体谅 be worthy of consideration值得考虑be under consideration在讨论中 take sth. into consideration考虑到,顾及,把考虑在内have consideration for others为别人着想 give ones careful consideration加以慎重考虑 in consideration of考虑到;作为对的回报(= in return for) considerate adj.体贴的;考虑周全的 considering prep. / conj.考虑到;就而言(3)consider.as.表示“把当作来看待”, 此外以下结构也可以表示这一含义：regard. . . as. . . / respect. . . as. . . / accept. . . as. . . / recognize. . . as /think of. as: / think. . . to be / have. . . as / look on. . . as / treat. . . as considerate adj. 体贴的,考虑周到的considerable adj. 相当多的,相当大的consideration 考虑,体贴,报酬considering prep. & conj. 考虑,就而言be considerate towards sb. 对体贴be considerate to do sth. 做考虑周到的in consideration of 作为对的回报,考虑到take into consideration (account) 考虑某事物,体谅某事物under consideration 在考虑中 阅读理解：special trees that grow faster, fight pollution, produce better wood, and even sense chemical attacks are being planted by scientists in the us.when 40 per cent of hawaiis us$14 million-a-year papaya (木瓜)industry was destroyed by a virus five years ago, work began on creating genetically engineered (转基因的) trees.researchers successfully introduced seeds that were designed to resist the virus. since then, more and more people have been testing genetically engineered trees.some researchers put special bacteria into trees to help them grow faster and produce better wood. others are trying to create trees that can clean polluted soil.meanwhile fruit farmers are looking for trees that are strong enough to resist worms, and paper companies want trees that produce more wood and therefore more paper.the pentagon (五角大楼，美国国防部所在地) even gave the researchers us$500,000 this year after they developed a pine tree that changes its colours if it senses a chemical attack.so far, the poplar, eucalyptus (杨树与桉树), apple and coffee trees are among those being engineered. all these can be done today because we have a better understanding of tree genomes (基因组).however, some people fear that the genetically engineered trees will cause dangerous results. they are worried that the new trees will breed with natural species and change the balance of the forest environment.“it could be destructive,” said jim diamond, an environmentalist. “trees are what is left of our natural environment and home to many endangered species.”but researchers insist that science could give nature a fighting chance against both natural and man-made dangers.they hope to answer the critics by stopping the new trees from breeding, so their effect on the environment can be controlled.c) 1. which kind of tree is not the ones that scientists are planting in the us?a. trees that worms cant hurt.b. trees that can react to a chemical attack.c. trees that can resist wind better. d.genetically engineered trees.b) 2. what caused the american scientists to work on special trees?a. they think science could give nature a fighting chance against both natural and man-made dangers. b. great numbers of trees have been lost due to attacks by viruses. c. researchers successfully introduced seeds designed to resist the virus.d. tree genomes are mapped out so scientists know how to improve trees.a) 3. which of the following was probably the first kind of trees being engineered?a. papaya.b. pine.c. apple.d. poplar.a) 4. why did critics think engineered trees dangerous? because _.a. these trees may eventually destroy the balance of natureb. everything except trees has been genetically engineeredc. trees are home to many endangered species d. these trees will replace normal trees 写作能力培养：当前，家长普遍认为现在孩子的行为习惯没有他们自己小时候的好。请你根据下表所提供的信息写一篇英语文章，简单介绍一下这种现象及出现这种现象的原因，并针对这种现象提一些建议。现象家长小时候懂礼貌、尊重别人、循规蹈矩现在的小孩不乐于助人、不尊重别人、崇尚自由。原因1互联网及电视节目中不良信息的影响2家长和老师过分关注学生成绩，忽视对学生行为习惯的培养建议（提出至少两点建议）注意：1对所给要点逐一陈述，适当发挥，不要简单翻译。2词数150左右。开头已经写好，不计入总词数。nowadays, a large number