高中英语unit22environmentalprotectionsectionlesson2lesson3课件北师大版选修

Section Lesson 2 & Lesson 3,课前自主预习,.重点单词 基础单词 1_ vt. 武装 2_ n. 代表 3_ adj. 巨大的 4_ adj. 多变的 5_ adj. 艰难的 6_ n. 方法 7_ n. 降雨量,arm behalf grand changeable rough means rainfall,8_ n. 大陆 9_ vi. 滑落 10_ adj. 破烂的 11_ adj. 在近海岸的 12_ vi. 滑行,mainland slip shabby offshore slide,拓展单词 13_ n巨大的灾难catastrophical adj.灾难的，灾难性的 14_ vt.灌溉irrigation n灌溉 15_ adj.独立的；vt.分离，分开separation n分开，分离；分居separated adj.分开的 16_ vt.建造construction n建造；建设constructive adj.建设性的，积极的,catastrophe,irrigate,separate,construct,17_ adj.潜在的；可能的；n.潜在的可能性potentially adv.潜在地；可能地potentiality n潜力，可能性 18_ adj.多山的mountain n山，山岳；mountains山脉,potential,mountainous,.重点短语 1_ 除之外 2_ (对已产生的不良后果)负责任 3_ 要求结束 4_ 否则，不然 5_ 结束(工作、会议等)，包裹 6_ 代表某人 7_ 永远 8_ 掠去，夺走,apart from answer for call for an end to sth. or else wrap up on somebodys behalf for good carry off,9_ 总的来说 10_ 导致，造成 11_ 从中恢复 12_ 克服 13_ 突然攻击；打开；取决于；依而定 14_ 谋生 15_ 提前 16_ 在某种程度上,all in all result in recover from get over turn on earn ones living in advance to some degree,.重点句型 1教材原句：Another reason why numbers have decreased is the loss of the tigers natural habitat. 数量减少的另一个原因是老虎自然栖息地的丧失。 佳句诵读：汤姆开会迟到的原因是他病了。 The reason_Tom came late for the meeting_he was ill.,why,was that,2教材原句：The last few years have seen environmental disasters on a grand scale，and experts are predicting far worse to come. 最近几年已经经历了大规模的环境灾难，专家们预测更为严重的灾难即将到来。 佳句诵读：深圳市见证了最近30年的许多变化。 The city of Shenzhen _many changes in the last 30 years.,has witnessed,3教材原句：Storms have been getting worse everywhere too，with a growing number of hurricanes hitting the US，and Central America. 随着不断增多的飓风袭击美国和中美地区，各地的暴风雨灾害也越来越严重。 佳句诵读：在老人的带领下，他们动身往山里走去。 _，they started toward the mountain.,With the old man leading,.语篇理解 1Scan the text and answer the following questions. (1)What is the attitude of the journalist towards the future? _ 答案： Pessimistic. (2)Who are most likely to be the victims of natural disasters? _ 答案： Poor people.,(3)Why are there now more hurricanes，floods and droughts? _ 答案： Overpopulation and mismanagement of the worlds resources. (4)Why are volcanoes and earthquakes more dangerous now? _ 答案： Because half the worlds population lives in cities within the range of volcanic eruptions and earthquakes.,(5)What could be the biggest threat to the planet in the future? _ 答案： A volcanic eruption. (6)What effects might this threat have? _ 答案： It might plunge the planet into winter for years.,2Fill in the blanks according to the text. Nature is turning on us,seen,leaving,armed conflict,wiped out,suffering,recovering from,reasons,overpopulation,On top of,half,课内研析探究,apart from除之外 (教材P8)Apart from the few found in zoos，pandas live only in the central bamboo forests of mainland China.除了少数生活在动物园，熊猫只生活在中国内地中部的竹林里。 It is a good piece of work，apart from a few slight faults. 除了几处瑕疵之外，这是一篇佳作。 Apart from the price，we also need to think about where it is situated when buying a house. 买房子时，除了价格外，我们还要考虑房子的位置。,We go to work every day except/apart from Sunday. 除了星期天，我们每天都去工作。 He is always in good health except that he has had a slight headache in the past few days. 他身体一直很好，除了那几天有些轻微头痛。 She can also speak French and Japanese besides/except from English. 除了英语之外，他也会讲法语和日语。,answer for(对不良后果)负责任；保证；代表意见 (教材P8)Hunters in general have a lot to answer for in terms of endangered animals. 狩猎者通常在濒危动物方面负有很大责任。,answer back 顶嘴，反驳 in answer to. 作为对的回答 make no answer 不作答，不回答,You will have to answer for your crimes one day. 你总有一天要因为你的罪行而得到报应。 We should not answer back when criticized by our parents. 当父母批评我们时，我们不应顶嘴。 The doctor came at once in answer to my phone call. 医生一接到我的电话立刻就来了。,seize vt.依法没收，扣押；抓住，抓获；夺取，攻占；理解 (教材P8)Every year police seize bags of tiger parts and arrest illegal hunters but sadly，many never get caught. 警方每年都会缴获大量的虎制品，逮捕非法的狩猎者，不幸的是，很多未被抓到。,seize sb.by the身体部位 抓住某人身体的某个部位 be seized with 受到侵袭；得疾病,The policeman seized the thief by the arm. 警察抓住了小偷的胳膊。 He was seized with a slight attack of fever yesterday. 昨天他有一点儿发烧。 The enemy seized the town after a violent attack. 敌人猛攻后占领了这个城镇。 Did he seize the chance of attending the World Cup? 他有没有抓住参加世界杯的机会？,call for an end to sth.要求结束 To save these beautiful animals，we need to call for an end to illegal hunting. The local government called for an end to the pollution. 当地政府要求结束污染。,call for 需要；要求；去请/接某人 call at 拜访(某个地方) call in 打电话来；召来(服务)；召回，收回 call on 号召；拜访(某人)；请求 call off 取消；把叫走 call up (给某人)打电话；使回忆起,This kind of job calls for patience，determination and perseverance.这种工作需要耐心、决心与毅力。 The meeting has been called off because of the bad weather. 因为天气不好，会议被取消了。 The smell of the sea called up memories of her childhood. 大海的气息勾起了她对童年的回忆。,on somebodys behalf代表 We need to speak out on their behalf before they disappear for good.,(1)on somebodys behalfon behalf of somebody 代表某人，为帮助某人，为了某人 (2)in behalf of somebodyin somebodys behalf 为帮助某人，为了某人,They gave us a welcome on the headmasters behalf. 他们代表校长欢迎我们。 On behalf of my colleagues and myself I thank you. 我代表我的同事和我向你表示感谢。 We collected money in behalf of the poor student. 我们为贫困学生募捐。,carry off掠去，夺走 Because the alligators live in holes that damage the farmland and sometimes carry off farm animals.,carry on (with/doing) 继续(做) carry out 实施；执行 carry away 带走；冲走 carry through 达成(目的)；使某人渡过(难关),He wants to carry off European champion cup and all honors，and realise all dreams. 他想夺得欧洲冠军杯和所有的荣誉，并实现所有的梦想。 They managed to carry on their experiments despite the difficulties.虽有困难，他们还是设法使试验继续下去。 Extensive tests have been carried out on the patient. 已对患者进行了全面检查。,scale n规模，大小；磅秤；比例 (教材P10)The last few years have seen environmental disasters on a grand scale.,to the same scale 按同一比例 on a large/small scale 大、小规模地,Nowadays，the scale of the pollution problem is much worse than before.当今，污染问题的程度比以前严重多了。 It is obvious that both plans are drawn to the same scale. 很明显两张平面图是按同一比例绘制的。 The typhoon caused damage on a large scale across the country. 台风对全国造成很大的损失。,result in导致 (教材P10)A number of nations have already been in armed conflict over water，and reduced rainfall in the west of the US has resulted in huge forest fires. 有些国家已经因为水的问题而发生武装冲突，美国西部的降水量减少已经导致多起森林大火。,result from 由于的原因，起因于 as a result of 由于的原因，因为 as a result 结果,As far as Im concerned，the terrible accident resulted from his carelessness. As far as Im concerned，his carelessness resulted in the terrible accident. 就我个人而言，粗心导致了可怕的事故。 He was late as a result of the heavy rain. 由于下大雨他迟到了。,means n方法，方式，手段 (教材P11)The telephone is a means of communication. 电话是一种交流工具。,by this means 通过这种方法 by means of 用办法；借助 by all means 一定；务必；好的，当然可以 by no means 决不，一点也不(位于句首时，部分倒装) by every means 用尽一切可能的办法,Furthermore，punishment is by no means a wise choice to help them grow up mentally and physically. 此外，惩罚绝不是一个帮助他们在精神上和身体上健康成长的明智选择。 All possible means have been tried. Every possible means has been tried. 所有(每一种)可能的办法都已经试过了。,Could I stay a little longer? By all means. 我可以多待一会儿吗？ 当然可以。 She could not speak，but made her wishes known by means of signs.她不会说话，但她用手势表达了她的愿望。,flee (fled；fled) vt.& vi.逃走，逃避；远离 (教材P11)In May 2006，thousands of Indonesians living near Mt Merapi (Which means mountain of fire) had to flee as they thought it was about to erupt. 2006年5月，成千上万的住在默拉皮火山(意思是火之山)附近的印尼人不得不逃离家园，因为他们认为火山要喷发了。 They were forced to flee (from) the country for political reasons.由于政治原因，他们被迫逃离这个国家。,Many German artists fled to/into America at the beginning of World War . 第二次世界大战初期，许多德国艺术家逃到美国。 He never flees away at the first sight of danger. 他从不一见危险就跑。,完成句子 1_(除之外) good service，the restaurant offers different kinds of traditional Fujian dishes. 答案： Apart from/Aside from/Besides 2I wrote several letters to his parents_(代表他) 答案： on his behalf,3She is very angry about what you did yesterday.You have to _(为负责) your behaviour. 答案： answer for 4You are old enough to_(自己谋生) 答案： earn your own living 5The family had to_(逃离那座燃烧的房子) 答案： flee the burning house,6George _( 抓住那个好机会) to present his proposal to the director，and at last it was adopted. 答案： seized the good chance 7Jenny nearly missed the flight_ _ doing too much shopping. 答案： as a result of 8_is this the first time you have been late. 答案： By no means,Another reason why numbers have decreased is the loss of the tigers natural habitat. 数量减少的另一个原因是老虎自然栖息地的丧失。 The reason why.is/was.表示“的原因是”，why引导定语从句，表语常用that引导从句，而不用because。 类似结构还有：,(1)This/That is why.为表语从句的常用句型结构，意为“这/那就是为什么”。 (2)Thats because.“这是因为”，because从句表示原因。,The reason why he got angry was that she told him a lie. 他生气的原因是她对他撒了谎。 Tom was ill.That was why he came late for the meeting. 汤姆病了，那就是他开会迟到的原因。 Tom came late for the meeting.That was because he was ill. 汤姆开会迟到了，那是因为他病了。,The last few years have seen environmental disasters on a grand scale and experts are predicting far worse to come.最近几年里，人们见证了大规模的环境灾难，专家们预测更为严重的灾难即将发生。 see在句中表示“见证，经历”，其主语通常是表示时间或地点的名词。 The following year saw the death of his mother. 第二年他妈妈去世了。 The old house saw their happy life. 这座老房子见证了他们幸福的生活。,英汉差异：英语中经常用物作主语，这符合事物从客体到主体的顺序，这也正是西方人的思维方式。而中国人思维习惯一般是从主体到客体，汉语习惯用有生命的人作主语。这样的动词常见的还有：witness，find，occur等。 The city has witnessed many changes in the last five years. 这座城市见证了最近五年的许多变化。,Storms have been getting worse everywhere too，with a growing number of hurricanes hitting the US，and Central America.随着不断增多的飓风袭击美国和中美地区，各地的暴风雨灾害也越来越严重。 句中使用了“with的复合结构”，其构成为with宾语现在分词短