1、Section Learning about Language&Using Language速效提能演练预习多维感知Section 重点难点探究预习多维感知Step One：Ask and DiscussionScan the text and then choose the best answer according to the text._1Whats the main idea of the text?AOrganic farmers use many methods to keep the soil fertile.CBChemical fertilizer is better th
2、an natural fertilizer.CNatural fertilizer is better than chemical fertilizer.DOrganic farmers prefer chemical fertilizer because it can improve the soil.2According to the text，which of the following is NOT the problem caused by chemical fertilizer?_ACrop diseases can be stopped.BChemicals also stay
3、in the ground and underground water for a long time.CThe helpful bacteria and pests are killed as well as the harmful ones.DMany of these fertilizers are dangerous to peoples health.A3 Which of the following is true?_A Organic farmers prefer chemical fertilizers.BOrganic farmers prefer using natural
4、 waste from animals.CAll farming is organic farming.DFarmers often grow the same crops year after year.B4Farmers_so that the soil may absorb important minerals.Aoften change the kind of crop in each field every few yearsBuse chemical fertilizersCplant crops such as peas or soybeansDplant crops to us
5、e the same level of soilC5How many ways do the organic farmers have to keep their soil fertile and healthy?_A3.B4.C5.D6.AStep Two：Fast ReadingRead the text (P14)carefully and fill in the blanks.Chemical farming (farming by using chemical fertilizers)Problems：damage the land affect _affect animals an
6、d humanslead to _or other illnesses_farming(farming without using chemicals)cropscancerOrganicGoals：to reduce _ to grow good food to protect the environment and peoples healthMethods：by changing the kind of crop in each field every few yearsby using different _by planting _between cropsdiseaselevels
7、 of soilgrass重点难点探究词汇精研1.It is important to explain this again or we will confuse the students.重新解释一下很重要，否则我们会让学生感到困惑。品味经典This question confuses us.这个问题让我们困惑。Dont give me so much informationyoure confusing me!别告诉我这么多你会把我弄糊涂的！自我探究confuse vt.使迷惑；使为难。归纳拓展confuse A with/and B 把A与B混淆confused adj.困惑的；混乱的c
8、onfusing adj.令人困惑的be confused about.对感到困惑be confused by.被搞糊涂了be confused that.对困惑confusion n.混乱；困惑You confused Australia with Austria.你把澳大利亚和奥地利搞混了。Im still a bit confused about what happened.我对发生的事仍然有点不解。People were confused by a lot of information.人们被大量的信息搞糊涂了。I was getting confused by such a conf
9、using problem.我被这么困惑的问题搞得不知所措。牛刀小试完成句子(1)这对双胞胎姐妹长得很相似，以至于我经常把姐姐和妹妹搞混。The twin sisters are so much alike that I often _.confuse the elder with the younger(2)她脸上困惑的表情表明她并不很明白经理的想法。The_look on her face suggested that she_her managers idea.confusedhadnt quite understood2.regret vt.遗憾；惋惜&nU，C遗憾；懊悔品味经典I r
10、egret spending so much money on a car.我后悔在一辆小汽车上花这么多钱。I didnt regret the choice I had made.我做了这个选择并不后悔。He told me with regret that he could not come to the party.他很遗憾地对我说他不能来参加这个聚会了.To our regret，Song Dandan didnt take part in the Spring Festival Gala.令我们感到遗憾的是宋丹丹没有参加春晚。易混辨析regret to do sth.，regret
11、doing(having done)sth.(1)regret to do sth.表示“对将要做的事或要说的话表示遗憾”。(2)regret doing(having done)sth.表示“做了某事而后悔”。I regret to say that he is badly ill.很遗憾他病得很重。I regret not taking his advice.我后悔没有接受他的劝告。牛刀小试完成句子(1)I_(很抱歉)that I cant help you.(2)He told me_(令人遗憾的是)that he could not come to the party.(3)_(非常抱
12、歉)，I must leave now.regret to sayit is to be regrettedMuch to my regret3.These chemicals in the food supply build_up in peoples bodies over time.随着时间的推移，食物中的这些化学成分会在人体中堆积。品味经典The clouds are building up.云越积越厚。She plays Taijiquan to build herself up every day.她每天打太极拳来增强体质。Their words built up my confi
13、dence after the interview.他们的话在面试后增加了我的信心。They built up this business after ten years struggle.经过了10年拼搏他们建立了这家公司。自我探究build up逐渐增强；建立；开发。归纳拓展build up意为“逐步建立，逐步形成”(form steady)，如build up ones strength(养精蓄锐)。build指“建筑，建造”，如build a house(建房子)。牛刀小试完成句子练中国功夫不仅可以增强体力，还可以培养一个人的性格。Practising Chinese kong fu
14、can not only_，but also develop ones character.build up ones strength4.Many of these chemicals can lead_tocancer or other illnesses.很多化学成分能导致癌症或其他疾病。品味经典Eating too much sugar leads to rotten teeth.吃太多糖会导致蛀牙。Too much work and too little rest often lead to illness.过量的工作和过少的休息会引发疾病。All roads lead to Rom
15、e.条条道路通罗马。自我探究lead to引起，导致；通向。归纳拓展lead sb.to sp.引导某人去某地lead sb.to do sth.引导某人做某事lead the way带路；带头What led you to this conclusion?你是如何得出这个结论的？What led you to take up acting as a career?是什么让你开始从事演艺事业的？Japan led the way in using industrial robots.日本在工业机器人应用方面处于领先地位。牛刀小试完成句子(1)我们坚定地相信战争解决不了任何问题，它只能带来暴力。
16、We firmly believe that war never settles anything.It only_.(2)新的证据致使窃贼被抓。The discovery of new evidence led to_.leads to violencethe thief being caught5.In_addition，fruit，vegetables and other food grown with chemical fertilizers usually grow too fast to be full of much nutrition.另外，使用化学肥料种植的水果、蔬菜和其他食
17、物通常生长过快而营养不丰富。品味经典Its getting dark；in addition，it is beginning to rain.天快要黑了，除此之外，天开始下起雨来。In addition，early rising is also good to our health.再者，早起对我们的健康也有益处。自我探究in addition为副词短语，意为“另外，加之，而且”，相当于as well。归纳拓展in addition to为介词短语，意为“除之外，还有”，相当于besides。He speaks French in addition to English.他除了英语以外，还会说
18、法语。牛刀小试完成句子(1)除了小组向导外，所有的队都有厨师和搬运工。_the group guide，all teams have cooks and porters.As well as(2)这一课程除了介绍一般的电脑知识外，还提供实际经验。_ a general introduction to computers，the course also provides practical experience.In addition to giving6.They focus_on keeping their soil rich and free of disease.他们主要是想保持土壤肥沃
19、并免受病害。品味经典The discussion focused on three main problems.讨论集中在三个主要问题上。Focus your attention on your work.把注意力集中在你的工作上。自我探究in addition为副词短语，意为“另外，加之,而且”，相当于as well。归纳拓展focus n.C焦点；中心点 vt.集中；聚焦Focus ones attention/efforts/energy/thoughts/mind on(doing)sth.集中注意力/努力/精力/思想/心思于focus sth.on sth.聚焦于；集中于focus
20、a camera/telescope on/upon.使相机/望远镜聚焦于He speaks French in addition to English.他除了英语以外，还会说法语。牛刀小试完成句子(1)她所有的精力都集中在孩子身上，看起来很少有时间顾及其他。All her energies _ her children and she seems to have little time for anything else.are focused on用适当的介词填空(2)All eyes were focused_him.(3)You should focus your attention_
21、your work.onon7.This also keeps the air，soil，water and crops free_fromchemicals.这还可以让空气、土壤、水以及农作物不受化学物质的污染。品味经典We should keep this village free from pollution.我们要避免这个村庄受到污染。Keep the children free from harm.别让孩子们受到伤害。This medicine can keep you free from pain.这种药可以止痛。自我探究keep.free from/of使免受(影响；伤害等)；使
22、不含(有害物)。归纳拓展free from/of.没有的；免除的；不受约束的They like living in a village，free from/of crowds and noises.他们喜欢住在村子里，远离人群和喧闹。She got the ticket free of charge.她免费得到了这张票。牛刀小试完成句子(1)一定要想办法阻止那个男孩子吵闹。Something must be done to keep_.the boy from making noise(2)如果城市噪音的增长不被阻止，20年后人们在餐桌上只有喊叫才能被听到。If city noises_fro
23、m increasing，people_shout to be heard even at dinner table 20 years from now.are not keptwill have to8.Swap summaries with your partner and give each other comments.和你的搭档交换摘要并互作评论。品味经典She made helpful comments on my work.她对我的工作提出了有益的意见。He made a comment about the match between Spain and Holland.他对西班
24、牙和荷兰之间的比赛发表了评论。The Prime Ministers speech received much comment in the press.首相的演说受到新闻界的广泛评论。She commented that it was an excellent film.她评论说这是一部很精彩的电影。自我探究comment nC，U评论；议论 U批评，指责 vt.&vi.表达意见；作出评论。归纳拓展make a comment/comments about/on.对发表评论comment about/on.对发表评论No comment！无可奉告！Some girls spend the d
25、ay commenting on others.有些女孩整天对别人品头论足。He did not comment on what I said.他对我的话未做评论。牛刀小试完成句子(1)你对最近事态的发展有什么评论吗？Do you _ the recent developments?(2)政府发言人对此事件发表了评论。The government spokesman_this event.have any comments to make on made a comment/comments about/on/commented about/on句型巧析9.Recently，however，s
26、cientists have_been_finding that longterm use of these fertilizers can cause damage to the land and，even more dangerous，to peoples health.可是，最近，科学家们发现长期使用这些肥料会造成土壤受损，而且，更危险的是，会对人的健康造成危害。品味经典I have been collecting stamps for 5 years.我收集邮票已经五年了。He has been reading books for 3 hours.他看书已经三个小时了。Ann is v
27、ery tired.She has been working hard.安很累，她一直在努力工作。自我探究have been finding是现在完成进行时态，表示一个动作开始于过去，并持续到现在，说话时仍在进行或刚刚结束。牛刀小试完成句子(1)(2010年高考江苏卷)杰克，你怎么看起来这么累！哦，我一直在粉刷房子。我必须明天完成这项工作。Why，Jack，you look so tired!Well，I_the house and I must finish the work tomorrow.have been painting(2)(2011年高考北京卷)在过去的三个月里，汤姆每晚都在图
28、书馆工作。Tom _ in the library every night over the last three months.has been working10.Crops such as peas or soybeans put important minerals back into the soil，making_it_ready for crops such as wheat or corn that need rich and fertile soil.像豌豆或大豆这样的农作物将重要的矿物质带回土壤，从而使之适宜于要求土壤肥沃的农作物，比如小麦或玉米。品味经典Many peop
29、le moved to New York，making it the largest city in the USA.很多人去了纽约，使之成为美国最大的城市。He cut off the wire，preventing a big fire.他剪断电线，阻止了一场大火的发生。He worked day and night，thus making himself nearsighted.他日夜工作，结果造成眼睛近视。自我探究句中making it ready.为现在分词短语作结果状语。现在分词作结果状语，相当于一个并列谓语，描述谓语动词发生后所带来的一种自然而然的结果。归纳拓展动词不定式也可作结
30、果状语，但它通常表示一种“偶然的、出人意料的”结果，有时为了强调这种意外的结果，可在不定式前面加only，译为“(结果)却”，“只(只是)”。He ran to the station，only to find the train had left.他跑到火车站却发现火车已开走了。He woke up to find everybody had gone.他醒了过来，结果发现大家都走了。牛刀小试完成句子(1)(2011年高考陕西卷)中国又建了很多公路，这使得人们出行变得更加容易了。More highways have been built in China，_for people_travel
31、 from one place to another.making it much easierto(2)神舟八号飞船与天宫一号成功完成第一次交会对接，从而使中国成为继俄罗斯、美国之后第三个掌握此技术的国家。Shenzhou successfully completed its first space rendezvous and docking with Tiangong1,_after Russia and the US.making China the worlds third country to have mastered this technology译文助读CHEMICAL OR
32、 ORGANIC FARMING?Over the past half century，using chemical fertilizers has become very common in farming.Many farmers welcomed them as a great way to stop crop disease and increase production.Recently，however,scientists have been finding that longterm use of these fertilizers can cause damage to the
33、 land and，even more dangerous，to peoples health.What are some of the problems caused by chemical fertilizers?First，they damage the land by killing the helpful bacteria and pests as well as the harmful ones.Chemicals also stay in the ground and underground water for a long time.This affects crops and
34、，therefore，animals and humans，since chemicals get inside the crops and cannot just be washed off.These chemicals in the food supply build up in peoples bodies over time.Many of these chemicals can lead to cancer or other illnesses.In addition，fruit，vegetables and other food grown with chemical ferti
35、lizers usually grow too fast to be full of much nutrition.They may look beautiful，but inside there is usually more water than vitamins and minerals.With these discoveries，some farmers and many customers are beginning to turn to organic farming.Organic farming is simply farming without using any chem
36、icals.They focus on keeping their soil rich and free of disease.A healthy soil reduces disease and helps crops grow strong and healthy.Organic farmers，therefore，often prefer using natural waste from animals as fertilizer.They feel that this makes the soil in their fields richer in minerals and so mo
37、re fertile.This also keeps the air，soil，water and crops free from chemicals.Organic farmers also use many other methods to keep the soil fertile.They often change the kind of crop in each field every few years，for example，growing corn or wheat and then the next year peas or soybeans.Crops such as pe
38、as or soybeans put important minerals back into the soil，making it ready for crops such as wheat or corn that need rich and fertile soil.Organic farmers also plant crops to use different levels of soil，for example，planting peanuts that use the grounds surface followed by vegetables that put down dee
39、p roots.Some organic farmers prefer planting grass between crops to prevent wind or water from carrying away the soil,and then leaving it in the ground to become a natural fertilizer for the next years crop.These many different organic farming methods have the same goal：to grow good food and avoid d
40、amaging the environment or peoples health.化学耕作还是有机耕作？在过去的半个世纪里，在耕作中使用化学肥料已经非常普遍。一些农民喜欢使用化肥，把化肥作为防治农作物病虫害和增产的重要手段。然而，最近科学家们发现长期使用这些肥料会对土地造成损害，甚至更危险的是，会对人们的健康造成危害。化学肥料都能造成哪些问题呢？首先，它们杀死有害细菌和害虫的同时也杀死了有益细菌和益虫，从而对土地造成损害。化学肥料还会在土壤和地下水中保存很长时间。这将会影响农作物，因此影响到动物和人类，因为化学物质会进入到农作物里面，而不能被冲洗掉。食物中的这些化学物质会随着时间的推移而在人
41、体内逐渐堆积.很多化学物质能导致癌症或其他疾病.另外，使用化学肥料种植的水果、蔬菜和其他食物通常生长过快而缺少足够的营养。它们可能看起来很好，但里面通常含更多的水分而不是维生素和矿物质.由于这些发现，一些农民和很多消费者开始转向有机耕作。有机耕作就是不使用任何化学肥料的耕作。他们主要是想保持土壤肥沃且免受病害。健康的土壤能减少病害并促进农作物茁壮生长。因此，有机耕作的农民通常喜欢使用天然的动物粪便作肥料。他们认为这样能使土壤中的矿物质更丰富因而也会更肥沃。这也能使空气、土壤、水和农作物不受化学物质的污染。有机耕作的农民也使用很多其他的方式保持土壤肥沃。他们经常每隔几年就在一块土地里更换一次农作物，例如，今年种植玉米或小麦，来年改种豌豆或大豆。像豌豆或大豆这样的农作物能使土壤重新富含重要的矿物质，这为种植需要肥沃土壤的农作物，如小麦和玉米等做好了准备。有机耕作的农民也使用不同的土壤层种植作物，例如，先种植生长在表层土壤的花生，然后种植生根于深层土壤的蔬菜。有些有机耕作的农民喜欢在农作物之间种草来防止水土流失，然后将草留在地里成为来年农作物的天然肥料。这些不同的有机耕作方式有一个相同的目标：种植好粮食并避免损害环境和人们的健康。速效提能演练本部分内容讲解结束点此进入课件目录按ESC键退出全屏播放谢谢使用
