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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。
高二英语选修6 Unit 4 Global Warming人教新课标版一、学习目标：知识目标：学习本单元的单词、短语和句型。
能力目标：能用所学基础知识来解决实际题目。
二、重点、难点：●重要单词：subscribe, quantity, tend, oppose, state, range, glance, steady, average，circumstance●重要短语：come about, go up, result in, even if, keep on, on the whole, on behalf of, put up with, so(as) long as, and so on●重要句型：1）独立主格结构的用法2）“疑问词＋to do”结构3) The most important one of which is carbon dioxide.三、知能提升：（一）重点单词［单词学习］1. subscribe①vt. & vi. 定期（向慈善机构）捐款；定期捐助 subscribe (sth.) to…向……捐……【例句】He subscribed liberally to charities.他向慈善事业慷慨捐款。
②vi. 订阅，订购（报刊等） subscribe to sth. 订阅……【例句】I subscribed to a morning paper. 我订阅了一份晨报。
2. quantity n.数量，量【用法】（ large / huge）quantities of 许多，大量a quantity of 许多，大量（修饰可数/不可数）in quantity 批量，大量【例句】Before they enter an entrance examination, they have to do quantities of exercise.在参加入学考试前，他们得做大量的练习。
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。
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。
tend 用作及物动词，意为“照顾；照料”;observe观察；注意；monitor 监视；监控；care为不及物动词，care for 才有“照顾；照料”的意思。
3. opposevt.反对；反抗；对抗；（与to连用）使反对，使相对Many members of the council opposed the building of the luxury houses in the centre of the city.许多议会议员反对在市中心建造豪华型住宅。
My mother is opposed to the new plan.我妈妈是反对这个新计划的。
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。
常用结构：be opposed to （表示对比）而，相对于易混辨析oppose/object/resistoppose 为常用词，指“对某人、某事采取积极行动来反对”，强调动作,尤指“反对一种观念、思想、计划等”。
object 常指“用言论或论据等表示反对”, 强调“个人嫌厌”和“由于与个人有关，因此提出反对意见”。
resist指“积极地反抗、对抗”；“用武力阻止……的前进”。
高手过招单项填空The professor, out the project, made a comment on the report.A. was opposed to carryB. opposed to carryC. opposed to carryingD. opposed carrying解析：选C。
短语be opposed to sth./doing sth.意为“反对/某事/做某事”，其中to是介词。
此处用过去分词作后置定语，相当于定语从句who was opposed to carrying。
4. consequencen.［C］结果；后果；影响I’m quite willing to accept the consequences.我完全愿意承担后果。
You should know the consequence of not studying hard.你应该知道不用功学习的后果。
This had the unexpected consequence that he got fired.这件事有了意外的后果，那就是他被革职了。
常用结构：as a consequence (of ...)=in consequence (of ...)=as a result (of ...) 结果;因此；由于……的原因联想拓展consequent adj.（+on/upon）因……而起的；随之发生的consequently adv. 结果；因此；必然地高手过招翻译句子①降雨量很大，结果田地被淹了。
②他努力学习，因此通过了考试。
答案：①The rain was heavy and consequently the land was flooded.②He studied hard, and in consequence he passed the exam.5. averageadj. 平均的；普通的n.平均;平均数The average age of the boys in this class is fifteen.这个班男生的平均年龄为十五岁。
It was an average piece of work.那是一件普通的作品。
The average man is not interested in this subject.普通人一般对这个题目不感兴趣。
常用结构：on average 平均地；通常above/below average 高于/低于平均数/水平an average of ... ……的平均数up to average 达到平均数The average of 4 and 8 is 6. 4和8的平均数为6。
Two students are absent each day on average.平均每天有两个学生缺席。
高手过招选词填空(ordinary/average/normal/common）①Though she is CEO of a big company, she is a(n) woman in the eyes of her families.②Relations between the two countries have been restored to .③It’s a bag, and you can find it in every store.④Letterboxes are much more in the UK than in the US, where most people have a mailbox instead.答案：①average ②normal ③common④ordinary6. blamev. 埋怨,责备常用结构：be to blame 应受谴责,应负责任blame something on sb. 把……归咎于blame sb. for sth./doing sth. 因……而责备某人City residents also blame migrant workers for the sharp rise in the urban crime rate. 城市居民还责怪民工造成了城市犯罪率的大幅度上升。
They blamed the failure on George. 他们把失败归咎于乔治。
Blame me if I don’t. 我要是不这样做,随你怎么办好了。
联想拓展blameful adj.该受责备的，有过错的blameless adj.无可责难的,无过错的blameworthy adj. 该受责备的高手过招单项填空He deserved to his carelessness.A. blamed forB. be blamed forC. blame forD. be blame for解析：选C。
be to blame应受谴责,应负责任，不能用于被动语态。
重点短语7. come about发生；产生How did this dangerous state of affairs come about?这种危险的事态是怎么发生的?联想拓展关于come的其他短语:come across 偶然发现；被理解；提供come into being 发生；产生；出现；形成come into power 开始执政；当权；当选come into effect/force 开始生效；开始实行come into existence 形成；产生；开始存在come into fashion 开始流行come off （头发、牙齿、纽扣）脱落；离开come on 上场；开始；赶快；加油come out 出来，发芽；出版；说出；洗掉come to know/realize/understand开始了解到/意识到/明白come up with 找到（答案）；拿出（一笔钱等）高手过招单项填空—How did it that you made such a silly mistake?—I myself haven’t figured it out yet.A. bring aboutB. come aboutC. come acrossD. come on解析：选B。
句意为：——怎么会发生这么愚蠢的错误？——我自己也搞不明白。
come about 发生，指事情发生的原因，常与how连用。
其他选项无此用法。
8. quantities of意思是“大量的”，既可以修饰可数名词，又可以修饰不可数名词。
Quantities of apples were on the table.桌子上有很多苹果。
Huge quantities of oil were shipped to Japan last year.去年大量的石油被海运到日本。
联想拓展in quantity/in large quantities 大量的in small quantities 少量的易混辨析a quantity of/quantities ofa quantity of 与quantities of，都可译为“大量的”，都既可修饰可数名词又可修饰不可数名词，但用法有区别。
a quantity of的谓语动词根据其后的名词而定，跟可数名词复数时谓语动词用复数，跟不可数名词时谓语动词用单数。
