高考英语(人教版)要点梳理+重点突破:选修6 Unit 4 Global warming
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人教版高中英语选修六知识点梳理重点题型(常考知识点)巩固练习Unit 4 Global warming 语言点学习目标重点词汇oppose compare state range quantity tend glance steady average circumstance重点短语come about subscribe to go up result in even if keep on on the wholeon behalf of put up with so long as and so on重点句型There is no doubt that...知识讲解重点词汇oppose【原句回放】On the other hand, there are those, like George Hambley, who are opposed to this view and believe that we should not worry about high levels of carbon dioxide in the air. 另一方面,还有一些人,像(科学家)乔治·汉布利反对这种观点,他们认为我们不必担心空气中有高含量的二氧化碳。
【点拨】oppose vt. 反对,反抗;与(某人)较量常用结构:be opposed to sth. 反对,相对(注意to是介词)He threw all those that opposed him into prison. 他把反对他的人都投入监狱。
Many residents are opposed to the plan of building the motorway.许多居民反对修建那条高速公路的计划。
I’m much opposed to your going abroad. 我非常反对你出国。
【拓展1】opposed adj.反对的,对立的(常与to连用,to是介词)She remained bitterly opposed to the idea of moving abroad.她仍然激烈地反对移居到国外的想法。
Unit 4Global warming重难点讲解一、重点词汇、短语与句式重点词汇1.n. 副产品byproduct2.n. 大灾难;浩劫catastrophe3.n. 个人;个体adj. 单独的;个别的individual4.n. 承诺;交托;信奉commitment5.n. 量;数量quantity6. vi. 趋向;易于;照顾vt. 照顾;护理tend7. vt. 消费;消耗;耗尽;吃完consume8.vi. 同意;捐赠;订阅vt. 签署(文件);捐助subscribe 9.vt. 反对;反抗;与(某人)较量oppose10.n. 结果;后果;影响consequence12.n. 种类;范围range13. adj. 平稳的;持续的;稳固的steady14. vt. 拥护;提倡;主张advocate15. v. (使)精神振作, (使)精力恢复, 更新refresh重点短语1.________________发生;造成2.________________ 同意;赞成;订购3.________________ 大量的4.________________ 上升;增长;升起5.________________ 导致6.________________ 反对……7.________________ 即使8.________________ 继续9.________________ 大体上;基本上10.________________ 忍受;容忍11.________________ 只要12.________________ 等等13.________________ 代表……一方;作为……的代言人e about2.subscribe to3.quantities of4.go up5.result in6.be opposed to7.even if8.keep on9.on the whole10.put up with11.so long as 12.and so on 13.on behalf of重点句式1.____________________the earth is becoming warmer and that it is human activity that has caused this global warming rather than a random but natural phenomenon.毫无疑问,地球正变得更加暖和。
1. 学习句型,理解句型的含义。
2. 正确地运用句型,并能灵敏地用于作文。
3. 掌握even if引导让步状语从句及so long as引导条件状语从句的用法。
重点:(1) Even if we start reducing the amount of carbon dioxide and other greenhouse gases, the climate is going to keep on warming for decades or centuries.(2) It is OK to leave an electrical appliance on so long as you are using it—if not, turn it off!难点:even if与so long as引导状语从句的用法。
【句型学习】1. Even if we start reducing the amount of carbon dioxide and other greenhouse gases, the climate is going to keep on warming for decades or centuries.即使我们开场减少二氧化碳和其他温室气体的含量,在(将来)几十年或几个世纪内,气候仍会持续转暖。
even if=even though引导让步状语从句,意为“即使,纵使〞。
Even if it should rain tomorrow, we will continue our work.即使明天下雨,我们仍要继续工作。
The engineers are so busy that they have zero time for outdoor sports activities, even if they have the interest.工程师很忙,尽管他们对户外运动感兴趣也没有时间运动。
体会解决实际问题重在学会探索。
善于运用数学思想去解决实际问题。
探寻用一元一次方程解决实际问题的一般方法与基本过程。
教学重点、难点: 重点:实现算术方法到方程思想的转化。
难点:能找准问题中的等量关系,并用正确的代数式表示出等量关系。
方法设计: 从解决实际问题入手,在探寻的过程中发学可以用方程来解决现实问题。
从中也琢磨出用方程解决实际问题的一般步骤及方法,让学生体会用方程解题的便捷与直观,培养他们用方程的思想来解决问题的习惯。
教学过程: 问题探知: 问题1:如图,天平的两个盘内分别放置51g和45g的盐,问应该从盘A中拿出多少盐放到盘B内,才能使天平平衡? 思考:(1)天平平衡的含义是什么?(天平平衡即所盛盐的质量相等。
) A盘盐的质量=B盘盐的质量 (2)这个等量关系中,如何表示出后来A、B两盘盐的质量? 解:设从A盘内拿出x克盐放入B盘内,使天平平衡。
这时,A盘中有盐(51-x)克,B盘中有盐(45+x)克。
根据题意,得 51-x=45+x x=3 答:从A盘内拿出3克盐放入B盘内,使天平平衡。
知识导学: 指出:列方程解决实际问题的关键在于抓住能表示问题含义的一个重要等量关系。
对于这个等量关系中的量,弄清哪些是已知的,哪些是未知的,设出合理的未知数,再将其它的未知量用这个未知数的代数式表示,最后根据等量关系,得到方程,解这个方程,求出未知数的值,并检验是否合理,最后解决问题。
问题2:某种商品因换季准备打折出售,如果按定价的七五折出售,将赔25元,如果按定价的九折出售将赚20元,问这种商品的定价是多少? 思路导引:解答此类题首先应理解“打折”的意义,按定价的七五折出售,即按定价的75%出售。
然后,要理解售价、进价(成本价)、利润三者之间的关系:售价-进价=利润。
利用进价不变这个量列方程。
方法规律:商品利润问题的基本关系有: 售价-进价=利润;售价=进价(1+利润率);利润率=实践与应用: 实践1:某中学开学了,老师对学生说:“新书发完了,我们每位同学用去你所缴代办费用的70%,还剩下60元留作以后备用。
Unit 4 Global warming核心单词1. subscribevi.同意;捐赠;订阅vt.(签署)文件;捐助常用结构:subscribe to ... 同意,赞许;(在文件等下面)签名,署名subscribe sth. to ... 捐助subscribe to/for ... 订阅;订购(书籍等)He did not subscribe to my proposal.他不赞同我的建议。
He subscribed a large sum to the relief fund.他向救济基金捐赠巨资。
He subscribed his name to a petition. 他在请愿书上签名。
高手过招翻译句子①只有疯子才会同意这样的观点。
②我订了一份《妇女周刊》。
答案:①No one but mad people would subscribe to such views.②I subscribed to a Weekly Women’s magazine.2. tendvt. & vi.(常与to连用)有某种倾向;有……的趋势;走向;趋向;朝向;照管,照料;看护People under stress tend to express their full range of potential.处于压力下的人容易发挥自己全部的潜力。
He tends to pitch the ball too high.他往往把球掷得过高。
Prices are tending upward. 物价在上涨。
The woman stayed at home to tend her child.那个妇女呆在家里照料她的孩子。
高手过招单项填空I never forget the days when I was by the villagers when I was wounded. Tended B. observed C. monitored D. Cared解析:选A。
选修6Unit 4Global warming要点梳理高效梳理·知识备考●重点单词1.phenomenon n.现象→phenomena pl.2.subscribe vi.同意;捐赠;订阅vt.(签署)文件;捐助3.quantity n.量;数量→quality n.质量;品质4.tend vi.趋向;易于;照顾vt.照顾;护理→tendency n.倾向;趋势5.trend n.趋势;倾向;走向6.oppose vt.反对;反抗;与(某人)较量→opposed adj.反对的;对立的7.consequence n.结果;后果;影响8.state vt.陈述;说明→statement n.说明9.range n.种类;范围10.glance vi.看一下;扫视n.一瞥11.steady adj.平稳的;持续的;稳固的→steadily adv.平稳地;持续地12.widespread adj.分布广的;普遍的13.average adj.平均的14.circumstance n.环境;情况15.refresh vt.使恢复;使振作16.contribution n.贡献→contribute v.贡献●重点短语1.come about发生;造成2.subscribe to同意;赞成;订购3.quantities of大量的4.go up上升;增长;升起5.result in 导致6.be opposed to反对……7.even if 即使8.keep on继续9.on the whole 大体上;基本上10.on behalf of 代表……一方;作为……的代言人11.put up with忍受;容忍12.so long_ as 只要13.and so on 等等●重点句型1.There is no doubt that the earth is becoming warmer(see Graph 1) and that it is human activity that has caused this global warming rather than a random but natural phenomenon.毫无疑问,地球正变得更加暖和(见图表1),而且全球转暖是人为的,而不是随意的自然现象。
2.Even if we start reducing the amount of carbon dioxide and other greenhouse gases, the climate is going to keep on warming for decades or centuries.即使我们开始减少二氧化碳和其他温室气体的含量,在(未来)几十年或几个世纪内,气候仍会持续转暖。
3.It is OK to leave an electrical appliance on so long as you are using it-if not,_turn it off!只要你在使用电器设备,你便可以把它开着。
如果不用就把它关掉!4.It takes a lot of energy to make things from new materials,_so, if you can, buy things made from recycled materials.将新材料做成物品需要许多能量,因而,如果有可能请购买用回收材料制成的物品。
●高考范文(2008·江西)学校计划举行英语作文竞赛,主题为We Need Advice from Older Generations。
请根据下列要求写一篇作文:你遇到了困难或问题,不知该怎么办。
你去请教一位长辈,后来问题得到了解决。
要求写清楚下面三点:1.当时面临的困难或问题是什么?2.你获得的指教是什么?3.结果如何?注意:1.作文总词数为100左右;2.不能在作文中出现所在学校的校名和本人姓名,否则本节判为零分。
_______________________________________________________________________________ _________________________[范文]We Need Advice from Older GenerationsNo one can deal with every problem they meet on their own. We need advice from others at times, especially from our older generations.The other day, I went to my uncle. I had had a hard time deciding which subject to major in in the university. I'd like to choose English because of my strong desire of learning languages, while my parents wanted me to major in science. Having learned my trouble, my uncle advised me to talk with my parents frankly, presenting my real thoughts. I did so.My parents understood me and agreed to respect my final choice.Remember: Go to your older generations for advice, and they will not disappoint you.考点探究互动探究·能力备考Ⅰ.词汇短语过关1.quantity n. 量;数量a large quantity of... 许多;大量(可数;不可数)quantities of... 许多;大量in quantity/large quantities 批量;大量[即学即练1](1)There ______ only a small quantity of wine left.只剩下很少一点酒了。
(2)Large quantities of clothes and food ______ provided for the earthquake areas.向地震灾区提供了大量的衣物和食品。
(3)The government has been buying silver ______ ______ __________.政府一直在购进大量白银。
is,are,in,great,quantities答案:提示:a large quantity of/quantities of 后可以跟可数名词也可跟不可数名词。
如果该短语做主语,前者谓语动词的单复数要依据所修饰名词的单复数形式而定,后者无论其后的名词可数或不可数,谓语动词都用复数。
2.tend vi.趋向;易于;照顾vt. 照顾;护理tendency n.倾向;趋势tend to do sth.往往容易干某事tend towards/to倾向于;趋于……tend sb./sth.照顾,护理某人/某物[即学即练2](1)The sort of music he listens to varies, but ______ _________ popular music.他听的音乐形形色色,不过倾向于流行音乐。
(2)She ______ ______ get angry when people oppose to her plan.别人反对她的计划时,她很容易生气。
tends/ towards / tends/ to(3)The nurse skillfully ______ their wounds.那位护士熟练地为他们包扎伤口。
tended3.oppose vt.反对;反抗;与(某人)较量opposed adj.相反的;对立的oppose sth./doing sth./sb. doing sth.反对某事/做某事/某人做某事oppose sth. to/against sth.使某事物与另一事物对照或对抗be opposed to...反对……;与……对立[即学即练3](1)He _________ the proposal to build a new hall.他反对修建新礼堂的建议。
(2)Do not ______ your will _________ mine.不要用你的意愿和我的相抗衡。
(3)She seems very much ______ ______ your going abroad.她好像很反对你出国。
Opposed / oppose / against / opposed / to4.state vt.陈述;说明n.状况;政府;国家;州in a...state处于……状态中in a bad/good state处于良好(差)状况中state+n./that clause/wh clause阐明……[即学即练4](1)She was ______ ______ ________ ______ when we arrived.我们到达时,她情绪很不好。
(2)He is ______ ______ ______ ______ ______ health.他的健康状况不好。
(3)The witness ______ that he had not seen the woman before.该证人说他以前从未见过那个女人。
in / a / terrible / state/ in/ a / poor / state / of / stated(4)She gave away ______ ________ to the enemy.她把国家的机密泄露给了敌人。
(5)Please ______ ______ ______ as they are.请如实地陈述事实。
state / secrets / state/ the / facts5.range n. 种类,范围,幅度,界限v. (在一定范围内)变动,变化;排列a wide range of 一系列……a full range of 各种……in/within range 在射程以内,在……范围内beyond/out of range 在射程外,在……范围外in/out of the range of 在/超出……范围out of one‘s range 某人能力达不到的,某人知识以外的range from...to... 在……范围内变动,包括由……到……之间的各类事物range between...and... 在……和……范围内变动[即学即练5](1)The child was now ______ ______ ______ ______ of vision.这孩子现在走出了她的视线。