高中英語(yǔ)新課標(biāo)(人教版)選修六_優(yōu)秀教案_{Unit4_Global_warming_Period_2

1、Period 2Language Study教學(xué)內(nèi)容分析The emphasis of this period will be placed on the important new words，phrases and sentence patterns in Warming Up，Prereading，Reading，Comprehending and Discovering useful words and expressions in Learning about Language.There are altogether 53 new words and phrases in thes

2、e five parts.20 of them are marked with triangles，which shows that the students needn't learn them by heart.It is enough to recognize them when meeting them while reading the passage.The other 33 should all be remembered，among which the following words and expressions are even more important：ten

3、d，range，subscribe to，go up，widespread，state，glance，steady，tendency，keep on，on the whole，quantity of，be opposed to，come about，result in，even if.They are all very useful and important.So are the sentence patterns “.it is a rapid increase when compared to other natural changes.” and “There is no doubt

4、that the earth is becoming warmer.” We ought to pay more attention to them.三維目標(biāo)設(shè)計(jì)Knowledge and skills1To get the students to learn to use the following important new words and phrases freely：tend，range，subscribe to，go up，widespread，state，glance，steady，tendency，keep on，on the whole，quantity of，oppose

5、，come about，result in，even if.2To get the students to understand and use the following important and useful sentence patterns：(1).it is a rapid increase when compared to other natural changes.(2)There is no doubt that the earth is becoming warmer.Process and methods1To help the students to understan

6、d the meanings of the above useful new words and expressions in the context，and then give some explanations about them，and at last offer some exercises to make students master their usages.2To ask the students to make up their own sentences by imitating the above sentence patterns.3At the end of the

7、 class，make students do more exercises for consolidation.In doing so，they can learn，grasp and use these important language points well.Emotion，attitude and value1To stimulate students' interest in learning English.2To develop students' sense of cooperation and teamwork.教學(xué)重、難點(diǎn)1Important new w

8、ords and expressions：quantity of，oppose，come about，result in，even if.2Important and useful sentence patterns：(1).it is a rapid increase when_compared_to other natural changes.(2)There_is_no_doubt_that the earth is becoming warmer.3Some difficult and long sentences in the text.Step 1Revision1Check th

9、e homework exercises.2Ask some students to talk about global warming.Step 2Reading and findingGet students to read through Warming Up，Prereading，Reading，Comprehending and Discovering useful words and expressions in Learning about Language to underline all the new words and useful expressions or coll

10、ocations in these parts.Read them aloud and copy them down in the exercise book.Step 3Practice for useful words and expressions1Turn to Page 28.Go through the exercises in Discovering useful words and expressions with students and make sure they know what to do.2Give them several minutes to finish t

11、he exercises.They first do them individually，and then discuss and check them with their partners.3Check the answers with the whole class and explain the problems they meet where necessary.Step 4Vocabulary study.簡(jiǎn)單知識(shí)掃描 1tend(P26) 【原句再現(xiàn)】It means that more heat energy tends to be trapped in the atmosph

12、ere causing the global temperature to go up.這意味著更多的熱量被困在大氣層中，從而引起全球溫度上升。【觀察探究】(1)We sometimes tend to think that the ocean bottom is made up of smooth plains.我們往往誤以為海底由平坦的平原構(gòu)成。(2)People under stress tend to express their full range of potential.處于壓力下的人容易發(fā)揮自己全部的潛力。(3)Doctors and nurses tended(to)the

13、injured.醫(yī)生和護(hù)士護(hù)理受傷的人。【歸納總結(jié)】tend vi.& vt.意思是“往往會(huì)，趨于，傾向；照料，護(hù)理”。作“照料，護(hù)理”講時(shí)，常與介詞to搭配?！炯淳盎钣谩?1)救護(hù)車(chē)上的救護(hù)人員在照料受傷的工人。Ambulance crews _ the injured workers.(2)男孩往往比女孩個(gè)子高。Boys _ taller than girls.Suggested answers：(1)were tending(to)(2)tend to be 2range(P27)【原句再現(xiàn)】.it will encourage a greater range of animal

14、sall of which will make life for human beings better.這將促進(jìn)動(dòng)物的生長(zhǎng)所有這一切都會(huì)使人類(lèi)的生活變得更好?！居^察探究】(1)Maybe the question is beyond the range of human understanding.或許這個(gè)問(wèn)題超越了人類(lèi)理解的范圍。(2)You can see a range of mountains standing on the top of the tower.站在塔頂你可以看到一系列山脈。 (3)The temperature ranges between ten and thirt

15、y degrees.氣溫在十至三十度之間。(4)I ranged the books on the shelf by/according to size.我把書(shū)依大小順序排在書(shū)架上?！練w納總結(jié)】range n. 意思是“范圍；射程；山脈；行列”； v. 意思是“變化；排列；歸類(lèi)于”，常用于range from.to.結(jié)構(gòu)，意為“從到范圍內(nèi)變化”。【即景活用】有年齡從七歲到十四歲的兩百個(gè)男孩。There are two hundred boys _.Suggested answer：ranging from seven to fourteen in age 3subscribe to(P26)【

16、原句再現(xiàn)】 All scientists subscribe_to the view that the increase in the earth's temperature is due to the burning of fossil fuels like coal，natural gas and oil to produce energy.所有科學(xué)家都贊同這樣的觀點(diǎn)：人們?yōu)榱松a(chǎn)能量而燃燒化石燃料(如煤、天然氣、石油等)，從而引起了地球溫度的升高?！居^察探究】(1)The children each subscribed 5 pence to buy a present for

17、Nick in hospital.孩子們每人出五便士為住院的尼克買(mǎi)禮品。(2)All the people present subscribe to the opinion put forward by the chairman.參加會(huì)議的人全部同意主席提出的意見(jiàn)。(3)I have subscribed to that magazine for years.我訂閱那本雜志已好幾年了?！練w納總結(jié)】subscribe to的意思有“捐款；捐助；同意，贊同；訂購(gòu)(報(bào)紙、雜志等)”等?！炯淳盎钣谩縏he government called on all the citizens to _ a rel

18、ief fund. Asubscribe toBagree toCamount toDshift to Suggested answers：A4go up(P26)【原句再現(xiàn)】It means that more heat energy tends to be trapped in the atmosphere causing the global temperature to go_up.這意味著更多的熱量被困在大氣層中，從而引起全球溫度上升?！居^察探究】(1)The elevator went up to the fourth floor.電梯升到了四樓。(2)As you go up a

19、 mountain，you have to overcome the earth's gravity which pulls you down.上山時(shí)你必須克服把你往下拉的地球引力。(3)Prices of fruit and vegetables have gone up.水果和蔬菜的價(jià)格上漲了。【歸納總結(jié)】動(dòng)詞短語(yǔ)go up的意思有“升；攀登；向上去，沿(街)而去；漲價(jià)”等。類(lèi)似意義的詞還有rise，increase等。其反義詞是：go down，fall down，decrease。【即景活用】(1)物價(jià)又上漲了。Prices _ again.(2)到處都蓋起新的大樓。New b

20、uildings _ everywhere.Suggested answers：(1)have gone up(2)are going up 5keep on(P27)【原句再現(xiàn)】 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.盡管我們已經(jīng)開(kāi)始減少二氧化碳和其他溫室氣體的排放量，但是在未來(lái)的幾十年或幾個(gè)世紀(jì)里氣候?qū)?huì)持續(xù)變暖。【觀察探究】(1)The

21、 airplane kept on flying at a high altitude.這架飛機(jī)持續(xù)在高空飛行。(2)He kept on smoking after the doctor told him to stop.醫(yī)生勸告他戒煙，可他仍繼續(xù)抽。(3)He is keeping on the house in his hometown.他把家鄉(xiāng)的那所房屋保留著。(4)Keep straight on and you'll come to the market.一直往前走就到市場(chǎng)。(5)I have failed several times，but I still keep on

22、.我已經(jīng)失敗了好幾次，但我仍然堅(jiān)持下去。 【歸納總結(jié)】keep on意為“繼續(xù)(做某事)；不顧困難、反對(duì)或警告而堅(jiān)持(做某事)；繼續(xù)前進(jìn)，繼續(xù)工作”等。【即景活用】Even if I fail again，I will _ working hard until I succeed.Agive up Bturn to Ckeep on Dthink of Suggested answer：C6on the whole(P28)【原句再現(xiàn)】On_the_whole the warming of the earth is a phenomenon that causes great concern.

23、大體上，地球變暖是一種引起巨大關(guān)注的現(xiàn)象?！居^察探究】The weather this month has been good on the whole.這個(gè)月的天氣基本上是好的。Living in town is pleasant but，on the whole，I like the country better.住在城里是愉快的，但是，總的來(lái)看，我更喜歡農(nóng)村?！練w納總結(jié)】on the whole意為“總的看來(lái)；大體上；基本上”，相當(dāng)于in general，mostly，可位于句首、句中或句尾。 【即景活用】翻譯句子總的看來(lái)，我認(rèn)為他那樣做是對(duì)的。Suggested answer：On t

24、he whole，I think he was quite right to act as he did.重點(diǎn)知識(shí)探究 1oppose(P27)【原句再現(xiàn)】On the other hand，there are those，like George Hambley，who are opposed to this view，believe that we should not worry about high levels of carbon dioxide in the air.另一方面，像喬治·漢布利那些人，他們反對(duì)這種觀點(diǎn)，認(rèn)為我們不應(yīng)該為空氣中二氧化碳含量高擔(dān)心?！居^察探究】Ma

25、ny members of the council opposed the building of the luxury houses in the centre of the city.許多市議會(huì)議員反對(duì)在市中心建造豪華型住宅。Many residents are opposed to the plan of building the motorway.許多居民反對(duì)修建那條高速公路的計(jì)劃?！練w納總結(jié)】oppose vt.& vi.意為“反對(duì)；使對(duì)立；使對(duì)抗； 抗?fàn)帯保竺婵芍苯痈~作賓語(yǔ)，也可用于be opposed to(doing)sth.結(jié)構(gòu)?！驹~匯辨析】 oppose，ob

26、ject和resist三者都含有“反對(duì)”的意思，但是用法有區(qū)別。oppose為常用詞，指“對(duì)某人、某事采取積極行動(dòng)來(lái)反對(duì)”，著重動(dòng)作，尤指“反對(duì)一種觀念、思想、計(jì)劃等”。如：The father opposed to his son's marriage.父親反對(duì)兒子的婚事。object 常指“用言論或論據(jù)等表示反對(duì)”，著重“個(gè)人嫌厭”和“(由于與個(gè)人有關(guān)因此)提出反對(duì)意見(jiàn)”。如：I objected to his plan.我反對(duì)他的計(jì)劃。resist 指“積極地反抗、對(duì)抗；用武力阻止的前進(jìn)”，如：The villagers were united to resist the ene

27、my.村民們團(tuán)結(jié)起來(lái)抵抗敵人。【即景活用】我們堅(jiān)決反對(duì)在國(guó)與國(guó)之間實(shí)行強(qiáng)權(quán)政治。We _ firmly _ the practice of power politics between nations.Suggested answers：are；opposed to 2come about(P26)【原句再現(xiàn)】So how has this come_about and does it matter？這種情況是怎么發(fā)生的，有什么影響？【觀察探究】With the use of electricity，great changes have come about.隨著電的使用，種種大變化發(fā)生了。T

28、he accident comes about in this way.這事故就是這樣發(fā)生的。Many a quarrel has come about through a misunderstanding.許多爭(zhēng)執(zhí)都是由于誤會(huì)產(chǎn)生的。【歸納總結(jié)】come about意為“發(fā)生，造成”，有時(shí)用it作主語(yǔ)，后面跟that引導(dǎo)的從句?！驹~匯辨析】 come about與happen，occur，take place的異同。come about與happen，occur，take place同義。take place常指經(jīng)過(guò)安排的。happen指“偶然發(fā)生”，等于occur。happen tov.意

29、為“偶然/碰巧做出”。It happens/happened thatclause.碰巧occur/happento(prep.).發(fā)生在 occurto(prep.).想起It occur(s/ed)(to sb.)to do sth./thatclause想起，想到【即景活用】同義句轉(zhuǎn)換She happened to be out when he called.A：It _ that she _ _ _ _when he called.B：She _not to be _ when he called.C：It _ _ she was not at home when he called.

30、Suggested answers：A：happened；was not at homeB：happened；homeC：came about3result in(P26)【原句再現(xiàn)】They also agree that it is the burning of more and more fossil fuels that has resulted_in this increase in carbon dioxide.他們還一致認(rèn)為，正是因?yàn)樵絹?lái)越多的化石燃料的燃燒才導(dǎo)致了二氧化碳的增長(zhǎng)?！居^察探究】These measures resulted in a great victory.由

31、于采取了這些措施，打了一個(gè)大勝仗。The plot resulted in failure.陰謀以失敗告終?！練w納總結(jié)】result in的意思是“產(chǎn)生，導(dǎo)致”，與 cause或lead to同義，其主語(yǔ)是起因；in的賓語(yǔ)是結(jié)果。result from的意思是“由引起，產(chǎn)生”，與lie in，as a result of和because of同義，其主語(yǔ)是結(jié)果，from的賓語(yǔ)是起因?！炯淳盎钣谩客x句轉(zhuǎn)換(1)His failure resulted from not working hard enough.Not working hard enough_ _his failure.(2)Hi

32、s sickness was caused by eating too much.AHis sickness _ _eating too much.BHe was ill _he ate too much.C_ _ _ _ eating too much，he was ill.Suggested answers：(1)resulted in(2)resulted from；because；As a result of4quantities of(P26)【原句再現(xiàn)】The problem begins when we add huge quantities_of extra carbon di

33、oxide into the atmosphere.當(dāng)我們把大量額外的二氧化碳排入大氣層的時(shí)候，問(wèn)題就出現(xiàn)了?！居^察探究】(1)Quantities of food(nuts)were on the table.桌子上有許多食品(堅(jiān)果)。 (2)Great quantities of sand were washed down the hillside by the rain.雨水把大量的泥沙沖下山坡。(3)He collected quantities(a quantity)of old pictures.他收集了大量的舊畫(huà)。(4)There is only a small quantity

34、 of wine left.只剩下很少一點(diǎn)酒了。【歸納總結(jié)】quantities ofa quantity of，意為“大量的”，既可以修飾可數(shù)名詞，也可以修飾不可數(shù)名詞。quantities of無(wú)論修飾可數(shù)還是不可數(shù)名詞，后面的謂語(yǔ)動(dòng)詞都用復(fù)數(shù)。另外，quantity前面還可以加修飾成分，構(gòu)成的短語(yǔ)有a certain quantity of (一定數(shù)量的)，a large(great，good)quantity of(大量的)，a small quantity of(少量的)，large(great，good)quantities of (大量的)，small quantities of

35、(少量的)。 【知識(shí)拓展】(1)quantity 量，數(shù)量。如：Without quantity there can be no quality.沒(méi)有數(shù)量就沒(méi)有質(zhì)量。The government has been buying silver in great quantities.政府一直在大量購(gòu)進(jìn)白銀。(in great/small quantities意為“大/少量”，用作狀語(yǔ)。)(2)表示“大量的”時(shí)，可用以下形式：修飾可數(shù)名詞many，a great/large number of，great/large numbers of，a good/great many (后面沒(méi)有of)，ma

36、ny a(后接單數(shù)名詞，其謂語(yǔ)動(dòng)詞也用單數(shù)形式)修飾不可數(shù)名詞much，a great/large amount of，great/large amounts of，a great/good deal of 既可以修飾可數(shù)名詞，也可以修飾不可數(shù)名詞a lot oflots of，a quantity ofquantities of，a mass ofmasses of，plenty of (前面沒(méi)有a)這些短語(yǔ)均常被形容詞修飾，如：a large number of，a small amount of，a great quantity of。quantities of/amounts of不可

37、數(shù)名詞復(fù)數(shù)動(dòng)詞；a lot of/lots of/plenty of不可數(shù)名詞單數(shù)動(dòng)詞。in amount/amounts/quantity/quantities/number意為“在數(shù)量上，大量地”。【即景活用】(1)We aim at quality rather than _.Anumber Bamount Cfigure Dquantity(2)With more forests being destroyed，huge quantities of good earth _ each year.Ais washing away Bis being washed awayCare was

38、hing away Dare being washed awaySuggested answers：(1)D(2)D 5even if(P27)【原句再現(xiàn)】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.盡管我們已經(jīng)開(kāi)始減少二氧化碳和其他溫室氣體的排放量，但是在未來(lái)的幾十年或幾個(gè)世紀(jì)里氣候?qū)?huì)持續(xù)變暖。【觀察探究】Even if it rained h

39、eavily，we still marched on.即使大雨傾盆，我們還是繼續(xù)前進(jìn)。Even if you are a good highjumper，you jump no more than three meters.即使是個(gè)優(yōu)秀的跳高運(yùn)動(dòng)員，你也跳不過(guò)三米。We shall go，even if it rains.就是下雨，我們也要去?！練w納總結(jié)】even if有“雖然、即使、盡管”的意思，引導(dǎo)讓步狀語(yǔ)從句，可以與even though互換，語(yǔ)氣比although和though強(qiáng)，可以放在主句前面也可以放在主句后面?！局R(shí)拓展】though，although引導(dǎo)讓步從句的用法：thou

40、gh，although引導(dǎo)讓步從句時(shí)，后面的從句不能有but，但是可以用 yet。如：Although it's raining，they are still working in the field.雖然在下雨，但他們?nèi)栽诘乩锔苫?。He is very old，but he still works very hard.雖然很老了，但他仍然努力地工作。Though the sore be healed，yet a scar may remain.傷口雖愈合，但傷疤留下了。(諺語(yǔ))【即景活用】(1)We'll make a trip _ the weather is bad.Aa

41、s for Beven if Cbecause of Das long as (2)_she is young，she knows quite a lot.AWhen BHowever CAlthough DUnless Suggested answers：(1)B(2)C.詞匯綜合運(yùn)用1用括號(hào)中所給的單詞或短語(yǔ)翻譯下列句子。(1)即使一個(gè)工人持續(xù)工作三十余年，他依然買(mǎi)不起房。(even if)(2)總起來(lái)說(shuō)，中國(guó)的房?jī)r(jià)太高。而且房?jī)r(jià)還在持續(xù)增長(zhǎng)。(on the whole；tend；keep on)(3)他們堅(jiān)決要求把房?jī)r(jià)控制在一定的范圍內(nèi)。(range)(4)盡管政府已經(jīng)采取了一些措施，但

42、是房?jī)r(jià)依然在上漲，這導(dǎo)致了許多問(wèn)題。(although；go up；result in)(5)許多人想知道這是如何造成的。(come about)(6)他們反對(duì)政府采取的一些措施。(oppose)Suggested answers：(1)Even if a worker works continually for more than thirty years，he still can't afford a house.(2)On the whole，the price of houses in China is too high.And it tends to keep on risi

43、ng.(3)They insist that the price of houses should be controlled within a range.(4)Although the government has taken some measures，the price of houses is still going up，which has resulted in many problems.(5)Many people want to know how it comes about.(6)They oppose some measurements taken by the gov

44、ernment.2連句成篇(按照一定的邏輯順序適當(dāng)調(diào)整句子的順序，把上面的句子連成一篇小短文，必要時(shí)增加適當(dāng)?shù)倪B詞。)_Suggested answers：On the whole，the price of houses in China is too high.And it tends to keep on rising.Although the government has taken some measures，the price of houses is still going up，which has resulted in many problems.Even if a worke

45、r works continually for more than thirty years，he still can't afford a house.Many people want to know how it comes about.They oppose some measurements taken by the government and insist that the price of houses should be controlled within a range.Step 5Sentence focus1.but it is a rapid increase

46、when_compared_to other natural changes.(P26)但是，同自然界的其他變化相比，這種升高是迅速的。這是一個(gè)省略句，補(bǔ)全之后是.but it is a rapid increase when it is compared to other natural changes。一般說(shuō)來(lái)，省略現(xiàn)象多出現(xiàn)在下列五種狀語(yǔ)從句中：(1)由 when，while，as，before，after，till，until，once等引導(dǎo)的時(shí)間狀語(yǔ)從句；(2)由whether，if，unless 等引導(dǎo)的條件狀語(yǔ)從句；(3)由 though，although，even if，whatever等引導(dǎo)的讓步狀語(yǔ)從句；(4)由 as，than 等引導(dǎo)的比較狀語(yǔ)從句；(5)由as，as if，as though 等引導(dǎo)的方式狀語(yǔ)從句。上述狀語(yǔ)從句在省略時(shí)，并非任何成分都可以省略，而是遵循以下原則：(1)當(dāng)狀語(yǔ)從句的主語(yǔ)與主句的主語(yǔ)一致時(shí)，可以省略狀語(yǔ)從句的主語(yǔ)和系動(dòng)詞be，這時(shí)從句中可出現(xiàn)如下結(jié)構(gòu)：連詞(as，as if，once)名詞。如：Once(he was)a worker，Pang Long now b