知识点复习精要ppt课件

Unit 4 Global warming基础落实 .高 频单词 思 忆1.She doesnt want to make a big emotional (承诺 ) to Steve at the moment.2.Under no (情况 ) should you lend Paul any money.3.The electricity industry (消耗 ) large quantities of fossil fuels.4.There are a lot of natural (现象 ) we cant mitmentcircumstancesconsumesphenomena5.If you behave so foolishly you must be ready to take the (后果 ).6.Large (量 ) of money have been spent on the bridge.7.Which journals does the library sto? 8.I would o changing the law. 9.This d was collected from 69 countries.10.He has already s his intention to run for election.consequencequantitiesubscribepposeatatated .重点短 语 再 现1. 发生；造成 2. 代表 一方，作为 的代言人3. 同意，赞成；订购 4. 反对 5. 继续 6. 导致 7. 忍受，容忍 8. 上升；增长；升起 9. 只要 10. 即使come abouton behalf ofsubscribe tobe opposed tokeep onresult input up withgo upso long aseven if .典型句式运用1.It takes a lot of energy to make things from new materials,.用新原料造东西需要大量能源， 句中 it为 ， take意为：（时间、劳力等）；有这种含义的 take通常不可用于被动语态。比较： It takes sb.time to do sth.某人花费时间做某事。考点提炼 形式主语 需要 ,消耗2.Its 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！ so/as long as引导 从句，意为 “ ” 。另外此短语还可意为 “ 在 的时间之内；既然，因为 ” 等。考点提炼 条件状语只要3.“We cant predict the climate well enough to know what to expect,.我们预报气候不够准确以致于不能知道要发生的事， not.enough to do sth.意为：“ ” ； enough表示它前面的形容词、副词的程度， 表示由此产生的结果或行动， enough后面 that从句。考点提炼 不够 以致于不能 不定式不能课堂导练互动重点 单词1.quantityThe problem begins when we add hugeof extra carbon dioxide into the atmosphere. （回归课本 P26）观察思考 He prefers quantity to quality when food is concerned.就食物而言，他讲究量不讲究质。 Quantities of food and tents were sent to Wenchuan from Shandong.大量的食品和帐篷被从山东运往汶川。quantities归纳总结quantity 。 in quantity大量 a large quantity of许多，大量，既可修饰可数名词复数，也可修饰不可数名词。 n.量；数量quantities of+ 不可数名词 可数名词复数 复数谓 语动词+ 许多的，大量的quantity of+ 可数名词复数 +复数谓语动词不可数名词 +单数谓语动词 许多的，大量的注意 a quantity of后同样可接不可数名词或可数名词的复数形式。但当它作主语时谓语动词一般根据其所修饰的名词而定，而 quantities of作主语时，不论其后的名词可数或不可数，谓语动词都用复数。即学即用 用 quantity的相关短语填空(1)Its a lot cheaper if you buy it. (2)My brother boughtbooks. (3)There are rain in this area.in quantitya large quantity oflarge quantities of2.oppose.,who are to this view and believe that we should not worry about high levels of carbon dioxide in the air. （回归课本 P27）观察思考He threw all those that opposed him into prison.他把所有反对他的人都投进了监狱。 I oppose you going there alone.我反对你单独去那儿。opposed归纳总结oppose vt. 。 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 /对抗 opposed adj.相反的；对立的 be opposed to反对；与 对立反对，反抗；与（某人）较量即学即用(1)他反对修建新礼堂的建议。 He to build a new hall. (2)不要用你的意愿和我的相抗衡。 Do not your will mine.(3)她好像很反对你出国。 She seems very much your going abroad.opposed the proposaloppose againstopposed to3.rangeIt will make plants grow quicker;crops will produce more;it will encourage a greater of animals. (回归课本 P27)观察思考The price of the house is well beyond our range.这所房子的价格远远超过了我们能承受的范围。There are 120 students whose ages range from 10 to 18.有 120名学生年龄在 10到 18岁之间。 rangeThere will be an increase in the range of 1 to 3 percent.将会有 1到 3个百分点的增长幅度。 The show ranges over many settings,from 18thcentury sailing ships to concert halls.这个节目涉及许多场景：从 18世纪的帆船到音乐厅。归纳总结range 。 (1)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 ones range 某人能力达不到的；某人知识以外的 (2)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n.种类；范围；幅度；界限； v.（在一定范围内）变动，变化；排列即学即用(1)这家商店商品品种繁多。 (2)年龄范围从 6岁到 12岁。 (3)老师沿着小径排列他的学生。 The shop keeps a wide range of goods.The age range is from 6 to 12 years.The teacher ranged his students alongthe path.4.glancequickly at the magazine article and answer the questions. （回归课本 P27）观察思考He glanced nervously at his watch.他紧张不安地看了一下表。 Nadine glanced round to see if there was anyone that she knew.纳丁快速环视了一下，看看是否有她认识的人。GlanceHe gave her a quick glance as she walked into the room.她走进房间时，他朝她看了一眼。 One glance at her face told me that she was tired.一看她的脸色，我就知道她累了。归纳总结glance 。 glance at/over/through浏览；匆匆地看一眼 glance off擦过；掠过 glance around/round环视 at a glance一眼；立刻 at first glance乍一看；乍看之下 take/have a glance at匆匆看一眼 steal a glance偷偷看一眼 vi.看一下；扫视； n.一瞥易混辨异glance,glare,stare,glimpse(1)glance指很快地看某人或某物一眼。 (2)glare指怒视。 (3)stare指由于生气、好奇、害怕或吃惊而睁大眼睛注视某人或某物。 (4)glimpse意为 “ 瞥见 ” ，强调结果。即学即用(1)他扫视了一下会议室。 He the conference room.(2)他瞥了一眼那个信封，认出是他叔父的笔迹。 He the envelope and recognized his uncles handwriting.(3)球从球门柱上斜擦入网。 The ball the post into the net.(4)他一眼就看出了问题所在。 He could tell what was wrong.glanced aroundglanced atglanced offat a glance5.averageThe greenhouse effect gives the earths surface the temperature of 15.(回归课本 P29)观察思考Do you know what the average rainfall is for the winter in our area?你知道我们地区冬季的平均降雨量是多少吗？ averageUsually,children of average intelligence achieve good results in study thanks to their diligence.通常智力水平中等的孩子往往会由于勤奋而成绩突出。 There is nothing special about it.It is only average.它没什么特别之处，很普通。归纳总结average adj. ； n. ； 平均为；计算出 的平均数。 (1)an average rate/cost/price平均比率 /成本 /价格 an average of 的平均数 above/below average高于 /低于平均水平 on average平均地；通常；按平均值 up to average达到平均数；达到一般水准 (2)average out (at sth.)平均数为；扯平；最终达到平衡 average sth.out算出 的平均数 平均的，普通的 平均数 v.即学即用 用适当的介词填空(1) average men smoke more cigarettes than women.(2)His living standards are average(低于一般水平 ).(3)My school work is well average.(4)The average age the boys in this class is fifteen.Onbelowaboveof重点短 语 与句型6.come aboutSo how has this and does it matter? (回归课本 P26)观察思考They didnt know how the change had come about.他们不知道这个变化是怎么发生的。 Many a quarrel comes about through a misunderstanding.很多争吵是由误解引起的。come about归纳总结come about意为： ，是 短语，不能接宾语，也没有被动语态。 与 come相关的短语： come across偶然遇见；无意中找到 come on跟着来，跟上来；口得啦；快点 come