2012屆高考英語一輪復(fù)習(xí) Unit 4 Global warming課件 新人教版

1、Unit 4Global warming 全球變暖,重點(diǎn)難點(diǎn)研析,知能強(qiáng)化訓(xùn)練,Unit 4,基礎(chǔ)知識自采,基礎(chǔ)知識自采,核心詞匯 1_(消費(fèi)者)are encouraged to complain about faulty goods. 2We_(提倡)using cloth or paper bags instead of plastic ones. 3There is a growing_(趨勢)for people to work at home instead of in an office. 4. Child as he is，he has many interests，_(變化)

2、from chess to swimming.,5She was trembling with excitement，but to my surprise her voice was_(穩(wěn)定) 6Janes work is above _(平均)while Hobs is very much below it. 7Under normal_(情況)，these two gases react readily to produce carbon dioxide and water. 8All the crops and fields here are under water during the

3、_(洪水),9The violent_(現(xiàn)象)of nature are still hard for us to deal with. 10I _(瞥了一下)at the clock and discovered that there were only 30 seconds left to play. 11We_with each other on the matter，but it is urgent to reduce the _，for we dont have much time left.(agree),12用educate的適當(dāng)形式填空 (1)He was_at a very

4、good school in his teens. (2)No country can afford to neglect the_of its young people. (3)They engaged a young _to teach them Spanish.,1.Consumers 2.advocate 3.tendency 4.ranging 5.steady 6.average 7.circumstances 8.floods 9.phenomena 10.glanced 11.disagree;disagreement 12.(1)educated(2)education(3)

5、educator,高頻短語 1_發(fā)生；造成 2_ 同意；贊成；訂購 3_ 大量的 4_ 上升；增長；升起 5_ 導(dǎo)致 6_ 反對,7_ 即使 8_ 繼續(xù) 9_ 大體上；基本上 10_ 代表一方；作為的代言人 11_ 忍受；容忍 12_ 只要 13_ 等等,e about 2.subscribe to 3.quantities of 4.go up 5.result in 6.be opposed to 7.even if 8.keep on 9.on the whole10.on behalf of 11.put up with 12.so long as 13.and so on,重點(diǎn)句式

6、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.毫無疑問，地球正變得更加暖和。全球變暖是人為的，而不是隨意的自然現(xiàn)象。,2_we start reducing the amount of carbon dioxide and other greenhouse gases，the climate is going to keep on warming for dec

7、ades or centuries. 即使我們開始減少二氧化碳和其他溫室氣體的含量，在未來幾十年或幾個(gè)世紀(jì)內(nèi)，氣候仍會(huì)持續(xù)轉(zhuǎn)暖。,3It is OK to leave an electrical appliance on _you are using it_，turn it off! 只要你在使用電器設(shè)備，你便可以把它開著，如果不用就把它關(guān)掉！ 4_to make things from new materials，so，if you can，buy things made from recycled materials. 用新材料來做這些東西要花費(fèi)大量的能源，因此，只要有可能，就買那些用回收

8、材料制成的物品吧。,1.There is no doubt that 2.Even if 3.so long as;if not 4.It takes a lot of energy,重點(diǎn)難點(diǎn)研析,1quantityn量；數(shù)量；數(shù)目，數(shù)額 (回歸課本P26) The problem begins when we add huge quantities of extra carbon dioxide into the atmosphere.當(dāng)我們向空氣中排放大量的多余的二氧化碳的時(shí)候，問題就開始產(chǎn)生了。,歸納拓展,例句探源 (朗文P1667)The cards are cheaper if yo

9、u buy them in quantity.大批量購買這些卡片要便宜些。 (牛津P1620)The data is limited in terms of both quality and quantity. 這份資料在質(zhì)量上和數(shù)量上都很有限。,Large quantities of information have been collected. 已經(jīng)收集了大量信息。 A large quantity of good earth is being washed away in this area every year.每年這個(gè)地區(qū)大量沃土被沖走。 Large quantities of w

10、ater are badly needed here. 這里急需大量水。,【溫馨提示】a quantity of后同樣可接不可數(shù)名詞或可數(shù)名詞的復(fù)數(shù)形式。但當(dāng)它作主語時(shí)謂語動(dòng)詞一般根據(jù)其所修飾的名詞而定，而quantities of作主語時(shí)，不論其后的名詞為可數(shù)或不可數(shù)，謂語動(dòng)詞都用復(fù)數(shù)。,即境活用 1Why does the lake smell terrible? Because large quantities of water_(污染了). (pollute) 答案：have been polluted,2opposevt.反對；反抗；與(某人)較量 (回歸課本P27)On the o

11、ther 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.在另一方面，還有一些人，像科學(xué)家喬治漢布利，反對上面的觀點(diǎn)，他們認(rèn)為我們不必?fù)?dān)心空氣中會(huì)有高含量的二氧化碳。,歸納拓展,例句探源 To be honest，I oppose your going there alone. 說實(shí)話，我反對你獨(dú)自一人去那兒。 Many people o

12、pposed the idea of building a new high way because of the great cost. 由于需要巨額開支，許多人反對另修一條新公路的主意。 (朗文P1437) Most company bosses say they are opposed to employees working a lot of overtime. 大多數(shù)公司老板說，他們反對雇員頻繁加班。,即境活用 2We are all strongly opposed to _(到這個(gè)島上探險(xiǎn)) without a guide. It is not a wise decision.(

13、explore) 答案：exploring to the island,3averageadj.平均的；普通的；正常的；平 常的 n平均數(shù)；平均水平；一般水準(zhǔn) v平均為；計(jì)算出的平均數(shù) (回歸課本P29)The greenhouse effect gives the earths surface the average temperature of 15. 溫室效應(yīng)使地球表面的平均溫度保持在15。,歸納拓展,例句探源 (牛津P118)I was just an average sort of student. 我只是一個(gè)普通的學(xué)生。 (2009年高考全國卷)On average，people

14、who dont smoke are healthier than people who do. 通常，不吸煙的人比吸煙的人健康。,Toms work at school is above (the) average，while Harrys is below (the) average. 湯姆在學(xué)校的功課在一般以上，而哈利的功課在一般以下。 Our weekly profits average out at about $750. 我們每周的平均利潤約為750美元。,即境活用 3Dont expect too much of him.After all，he is a child of_in

15、telligence. AaverageBslight Cstrange Ddifferent 解析：選A。根據(jù)前句“不要對他期望太大”，可以推斷，這個(gè)孩子智力水平一般。,4glancevi.看一下，掃視n一瞥 (回歸課本P27)Glance quickly at the magazine article and answer the questions. 快速瀏覽一下這篇雜志文章，然后回答問題。,歸納拓展,例句探源 (全國高考)But，as he glanced down the page，a notice caught his eye. 但他往下瀏覽時(shí)，有則布告吸引了他的眼球。 (牛津P8

16、63)I only had time to glance at the newspapers. 我只來得及瀏覽一下報(bào)紙。,(牛津P863)At first glance，the problem seemed easy. 乍一看問題似乎很簡單。 I took a glance at the hall and found many familiar faces among the audience. 我掃視了一下大廳，發(fā)現(xiàn)觀眾中有許多熟悉的面孔。,即境活用 4匆匆看了病人一眼之后，醫(yī)生打電話叫了救護(hù)車。 _ at the patient the doctor rang for an ambulan

17、ce. 答案：After a quick glance,5circumstancen環(huán)境；情況，通常用作復(fù)數(shù)形式 (回歸課本P30)Recycle cans，bottles，plastic bags and newspapers if circumstances allow you to. 如果情況允許的話，回收容器、瓶子、塑料袋和報(bào)紙。,歸納拓展 in/under the circumstances 在這種情況下；情況既然如此 in/under no circumstances 決不，無論如何都不（放句首時(shí)主句用倒裝語序）,例句探源 (牛津P344)Under the circumstanc

18、es，it seemed better not to tell him about the accident. 在這種情況下，不告訴他有關(guān)這次事故的情況似乎更好。 (牛津P344)Under no circumstances should you lend Paul any money.你無論如何都不能借錢給保羅。 Circumstances permitting，Ill go abroad to study. 情況允許的話，我要出國學(xué)習(xí)。,即境活用 5Under no circumstances_(你會(huì)屈服) when you are in difficulty.(give) 答案：will

19、 you give in,6come about發(fā)生；造成 (回歸課本P26)So how has this come about and does it matter？那么，這種溫度的升高是怎么產(chǎn)生的呢？會(huì)有什么影響呢？,例句探源 (牛津P386)Can you tell me how the accident come about? 你能告訴我事故是怎樣發(fā)生的嗎？ Ill never understand how it came about that you were an hour late on such a short journey. 我真不明白這么短的路程你怎么會(huì)遲到一個(gè)小時(shí)。,

20、易混辨析 come about，happen，take place，break out (1)come about“發(fā)生，產(chǎn)生”，指要求解釋或說明事情發(fā)生的理由。通常與how連用。 (2)happen“發(fā)生”，常用詞匯，指偶然的，意外的，具體客觀事物的發(fā)生或出現(xiàn)，尤其指自發(fā)的未能預(yù)見的事情的發(fā)生。 (3)take place“發(fā)生”，指事件或事故的發(fā)生是在預(yù)料中的并非是偶然的，進(jìn)而引申為按計(jì)劃“進(jìn)行，舉行”。 (4)break out 指戰(zhàn)爭、火災(zāi)、疾病等的突然“發(fā)生、爆發(fā)”。,即境活用 6用come about；happen；take place；break out填空： (1)A fire

21、 _during the night. 答案：broke out (2)Luckily the earthquake didnt _in the center of the city. 答案：happen,(3)How did it _ that the dairy products were harmful to children? 答案：come children (4)Great changes _ in our school in the past few years. 答案：have taken place,7result in導(dǎo)致 (回歸課本P26)They also agree

22、that it is the burning of more and more fossil fuels that has resulted in this increase in carbon dioxide.他們還贊同下述觀點(diǎn)，正是由于越來越多地燃燒化石燃料導(dǎo)致了二氧化碳的增加。,歸納拓展 result from.由造成；因而產(chǎn)生 as a result結(jié)果 as a result of.由于的結(jié)果 with the result that.其結(jié)果是 without result沒有結(jié)果；白費(fèi),例句探源 His hard work resulted in excellent grades

23、in his exams. 他的努力使他在考試中取得了優(yōu)異的成績。 However，pollution and other serious problems have also resulted from human progress. 但是，人類的發(fā)展也產(chǎn)生了污染和其他嚴(yán)重的問題。 (牛津P1702)He made one big mistake，and as a result，lost his job. 他犯了個(gè)大錯(cuò)，結(jié)果丟了工作。,About 21 million people died during the 1990s as a result of smoking. 20世紀(jì)90年代約

24、有2100萬人死于吸煙。 He has tried very hard to find a job，until now without result.他努力找工作，但直到現(xiàn)在仍毫無結(jié)果。,即境活用 7_(由于)medical advances, many people who might once have died in childhood of such infections as diphtheria, pneumonia, or rheumatic fever now live well into old age. (result) 答案：As a result of,8In AD.

25、391 _(由于)the destruction of the largest library of the ancient world at Alexandria, later generations lost all but the lliad and Odyssey among Greek epics.(result) 答案：resulting from,8put up with容忍；忍受 (回歸課本P30)We do not have to put up with pollution. 我們沒必要忍受污染。,歸納拓展,例句探源 I cant put up with your ruden

26、ess any more；leave the room，please. 我不能再忍受你這種無禮的態(tài)度了，請離開這個(gè)房間。 (牛津P1615)Im not going to put up with their smoking any longer.我再也不能容忍他們抽煙了。,We are trying to put aside some money every month for our vacation.我們盡量每月存些錢供度假用。 One moment please，Im just trying to put you through. 請等一下，我這就給你接通電話。 Please put o

27、ut the light before you go to bed. 上床之前請把燈關(guān)掉。 He put forward a new theory at the meeting. 在會(huì)上他提出了一種新理論。,即境活用 9She will have to find some other work，for she cant_the loud noise any more. Acome up withBput up with Ckeep up with Dend up with 解析：選B?？疾槎陶Z辨析。put up with忍受，容忍。句意：她將不得不另找工作，因?yàn)樗僖踩淌懿涣四敲创蟮脑胍袅?。c

28、ome up with想出，提出；keep up with跟上；end up with以結(jié)束。,10The teacher asked a difficult question，but Ted finally managed to_a good answer. Aput up with Bkeep up with Ccome up with Dgo through with 解析：選C。句意：老師問了一道很難的題，但特德最后還是想出了令人滿意的答案。put up with忍受；keep up with跟上；come up with提出；go through with(艱難地)完成，履行諾言。根

29、據(jù)句意選C。,11Dont be so discouraged.If you _such feelings，you will do better next time. Acarry on Bget back Cbreak down Dput away 解析：選D。carry on開展；進(jìn)行；get back 取回；break down分解；崩潰；出故障；put away收拾起來。句意：不要泄氣，如果你收起這種情緒，下次你會(huì)做得更好。,1【教材原句】It takes a lot of energy to make things from new materials.(P30) 用新材料造東西需要

30、大量能源 【句法分析】句中it為形式主語，take意為需要/消耗(時(shí)間、勞力等)，take作此含義時(shí)通常不可用于被動(dòng)式。,To be honest，it takes great courage to tell the truth. 老實(shí)說，說出真相需要很大勇氣。 It takes perseverance and courage to become a successful man. 成為一個(gè)成功的人需要毅力和勇氣。,即境活用 12Honesty is a kind of quality and thats_(所需要的)to communicate with others successfully.(take) 答案：what it takes,2【教材原句】It is OK to leave an electrical appliance on so long as you are using itif not，turn it off！(P30) 在使用電器設(shè)備時(shí)你可以把它開著，如果不用就把它關(guān)掉！ 【句法分析】(1)so long asas long as“只要”，引導(dǎo)條件狀語從句。