【課件】Unit3SeaexplorationUsinglanguage2課件高二英語人教版選擇性必修第四冊

1、Using Language 2Express your opinions on sea explorationTo analyzes the arguments and evidence in the texts.To express your opinions on sea exploration.To learn to write an argumentative essay with the help of PEEL method.Should the sea be explored?Read the two texts below and find the arguments and

2、 evidence in them.argument evidenceExploration causes pollution.Deepwater Horizon oil spill Plastic pollutionMining for resources is damaging.It hurts the Arctic.Burning fossil fuels adds to climate change.argument evidenceOverfishing is an issue.Whales and dolphins are hunted.Banned, but some count

3、ries still doing it.argument evidenceSea exploration is important for our future.Scientific research ships can help address important issues like climate change.Understanding more about the sea will also help us manage its resources better.New medicines, food resources and energy.Predict events such

4、 as eartquakes.argument argument evidenceevidenceWe need new resources for future development.Vast amounts of resources may be under the sea and ice.Look at the two charts below and decide which one supports which text.Text 2Text 1In groups, discuss the following questions and take notes.1. What is

5、your opinion about sea exploration? Do you agree with one argument more than the other?I think sea exploration is a wonderful idea, because even if there are no immediate rewards for it, to explore and find out more about our world is always a good thing.2. Has your opinion changed after reading the

6、 two texts? Why or why not?Yes, my opinion has changed. Before reading Text 1, I did not know that sea exploration could add to sea pollution, via deep sea drilling for example.3. Are there any other aspects of sea exploration not mentioned that you think are important?We do not know what we dont kn

7、ow; we need to explore the ocean so that we can better understand issues such as acidification which leads to seawater to become more acidic, and how to fight these problems; studying the ocean causes the creation of new technologies that can help us in other areas.Based on your note, write an argum

8、entative essay on sea exploration, expressing your opinions with supporting facts.1) The following questions may help you.What is the purpose of sea exploration?How does sea exploration help us to protect the sea?How does sea exploration cause damage to the sea?Is there a good balance between protec

9、tion and exploitation?HomeworkPoint What point do you want to make?Evidence What facts and examples can you find to support your point? How reliable are the sources?Explanation Explain how the facts support your opinion and show other opinions to be incorrect.Link Connect this point to the next poin

10、t, or back to the main point of the essay or paragraph.2) Use the PEEL method to help structure your argument.Even though the oceans make up about 70% of the earths surface, more than 80% of the oceans remain unexplored. While some people say that we should not explore the oceans, their reasoning is

11、 not very sound. Exploring is not the same as exploiting. When we explore a place. We go just to see and understand what is there.We should explore the ocean, first and foremost, because we do not know what we do not know. We thought we knew many about the ocean, but we were wrong. There could be li

12、fe forms in the ocean, for example, that fit none of the neat categories we have for life while we have no clue that they even exist.This brings up the second point. We already know many things about the ocean, but we need to learn more. A good example is ocean acidification.We know that it is causi

13、ng coral to die. We know that using less fossil fuel would cause the process to slow down. However, we need to learn more to find out how to stop it. We need more research to see what is going on, and to come up with plans and solutions.Finally, to do this research, we have to enter an extreme envir

14、onment not very friendly to humans. This requires the development of new technologies that can also benefit us in other areas. For example, in many ways, the deep ocean resembles outer space.The technologies can benefit each other. For another instance, the technology of a mechanical arm to collect

15、samples with has been used in factories and development of artificial limbs for humans.All in all, there are many good reasons to explore the oceans. If we care about science, about protecting our oceans, and about developing new technologies, we need to do all we can to support ocean exploration.ex

16、ploit sthto do sth利用某事做某事 exploit sb.with sth.用剝削某人 exploitation n.開發(fā)；利用；剝削 explorer n. 開發(fā)者；剝削者 1.exploit vt開發(fā)；利用；剝削開發(fā)；利用；剝削 When people talk of exploring the sea more，they usually mean exploiting it.當(dāng)人們談?wù)摳嗟靥剿骱Ｑ髸r，他們通常意味著開發(fā)它。當(dāng)人們談?wù)摳嗟靥剿骱Ｑ髸r，他們通常意味著開發(fā)它。 【歸納擴展歸納擴展】單句語法填空單句語法填空 You must exploit every opp

17、ortunity _(learn) new things. The controlled _(exploit) of sea resources can protect many species. Children must go to school, not be financially_ (exploit). to learnexploitationexploited Although this was banned in 1982,some countries are still “murdering” these intelligent creatures without mercy.

18、盡管早在1982年就已禁止,但有的國家仍地?zé)o情地 “謀殺”這些聰明的動物。 merciful adj. 仁慈的；寬大的仁慈的；寬大的be merciful to/ towards sb 對某人仁慈對某人仁慈2. mercy n. 仁慈；寬??；恩惠仁慈；寬??；恩惠【歸納擴展歸納擴展】【語境應(yīng)用】用適當(dāng)?shù)慕樵~填空。1) They showed mercy _ their enemies.2) The ship was _ the mercy of the storm.3) She got on her knees and begged _ mercy.onatformercy短語短語at the

19、mercy of 任任處置處置; 對對無能為力無能為力; 任由任由擺布擺布beg for mercy 懇請寬恕懇請寬恕 have mercy on/upon sb. 對某人表示憐憫對某人表示憐憫 show mercy to sb. 對某人表示憐憫對某人表示憐憫 without mercy 無情地?zé)o情地 The sea is home to life, not human beings possessions. 海洋是生命的家園，而不是人類的私產(chǎn)。 3.possession n.個人財產(chǎn)；擁有；控制個人財產(chǎn)；擁有；控制be in possession of 擁有擁有（主語為人）（主語為人）be

20、in the possession of (sb)= be in ones possession（某物）被（某物）被 （某人）擁有（某人）擁有come into ones possession 為某人所擁有為某人所擁有take / come into possession of 占有；擁有占有；擁有possess v. 占有，擁有；控制，支配。占有，擁有；控制，支配?！練w納擴展歸納擴展】【語境應(yīng)用語境應(yīng)用】根據(jù)漢語意思補全下面句子（每空一詞）。根據(jù)漢語意思補全下面句子（每空一詞）。1) 這伙人被逮住了，人贓俱獲。這伙人被逮住了，人贓俱獲。 The gang was caught _ _ _ s

21、tolen goods.2) 離開賓館時請記得隨身攜帶好你的私人物品。離開賓館時請記得隨身攜帶好你的私人物品。 Please remember to take all your _ _ with you when you leave the hotel.3) Jack是個好孩子，他有很多好品質(zhì)。是個好孩子，他有很多好品質(zhì)。 Jack is a good boy and _ _ _ _.in possession of personal possessions possesses many good qualities4arrest n逮捕；拘留；中止逮捕；拘留；中止 vt逮捕；拘留；阻止逮捕；

22、拘留；阻止 A 5 million reward has been announced for information leading to the arrest of those responsible for the murder已經(jīng)宣布了已經(jīng)宣布了500萬萬 美元的懸賞金，以獲取導(dǎo)致謀殺責(zé)任人被捕的信息。美元的懸賞金，以獲取導(dǎo)致謀殺責(zé)任人被捕的信息。 under arrest 被捕被捕make an arrest 展開拘捕行動展開拘捕行動arrest sb. for doing 因因.逮捕某人逮捕某人arrest ones attention 引起引起.的注意的注意【歸納擴展歸納擴展】單

23、句語法填空單句語法填空 Several days ago, Fox_ (arrest) during a protest against a new fuel pipeline. The murderer was _arrest in a small village. His son was arrested _stealing cars. was arrestedunderforAlthough this was banned in 1982, some countries are still “murdering” these intelligent creatures without m

24、ercy.盡管早在盡管早在1982年就已禁止，但有的國家仍在無情地年就已禁止，但有的國家仍在無情地“謀殺謀殺”這些這些聰明的動物。聰明的動物?！揪涫椒治鼍涫椒治觥勘揪涫且粋€復(fù)合句。本句是一個復(fù)合句。some countries are.是主句；是主句；although=though是從屬連詞，意為是從屬連詞，意為“雖然雖然;盡管盡管”，引導(dǎo)，引導(dǎo)讓步狀語從句。讓步狀語從句。句子結(jié)構(gòu)句子結(jié)構(gòu)(1)用作連詞表示“雖然”，兩者大致同義，可換用，只是 although 比 though 更為正式。Though/Although it was raining, we went outside.(2)用作

25、副詞although一般不用作副詞，而 though 可用作副詞，且一般放在句末(不放在句首)，意為“可是；不過”。Its hard work; I enjoy it though.(3)用于習(xí)語在 as though(好像，仿佛)、even though(即使，縱然)等固定短語中不能用 although。He is an honest man, I must say, even though I dont like him.(4)用于倒裝though引導(dǎo)的讓步狀語從句可用部分倒裝的形式(注意：倒裝后位于句首的名詞之前不用冠詞)，但 although 一般不這樣用。Child though h

26、e was, he did quite well.【語境應(yīng)用語境應(yīng)用】語法填空。語法填空。1) We will try our best to make it _ though it is hard work. 2) He nodded _ though he knew everything about it.evenasWritingAn argumentative essay on sea exploration寫作訓(xùn)練 弄清文路 寫作妙筆生花技法點撥 文體分析 把握寫作動脈本單元的寫作任務(wù)是辯論性議論文。一般包括四段：本單元的寫作任務(wù)是辯論性議論文。一般包括四段：第一段第一段說明辯論的主

27、題；說明辯論的主題；第二段第二段表明正方的觀點及其理由；表明正方的觀點及其理由；第三段第三段表明反方的觀點及其理由；表明反方的觀點及其理由；第四段第四段陳述自己的觀點。陳述自己的觀點。(有時也可以分為三段：第一段說明辯論的主題；第二段表明正方和反方有時也可以分為三段：第一段說明辯論的主題；第二段表明正方和反方的觀點及理由；第三段表明作者自己的觀點。的觀點及理由；第三段表明作者自己的觀點。)技 法 點 撥文體分析 把握寫作動脈介紹討論的主題介紹討論的主題(開頭句開頭句)：1.We had a discussion about whether it is necessary to.2.Weve h

28、ad a survey on.3.Im writing to tell you about a discussion we have had about.過渡句：過渡句：1.Opinions are divided on this issue.2.Opinions are mainly divided into two groups.3.Different people，however，have different opinions/think quite differently on this matter.介紹正方觀點：介紹正方觀點：1.45% of the students hold t

29、he view that.For one thing，.For another thing，.2.60% of the students are for the idea.介紹反方觀點：介紹反方觀點：On the contrary/However/As the old saying goes，each coin has two sides.Nearly half of the students think that.On one hand，.on the other hand，.返 回當(dāng)前，隨著陸地資源短缺、人口膨脹、環(huán)境惡化等問題的日益嚴(yán)峻，各當(dāng)前，隨著陸地資源短缺、人口膨脹、環(huán)境惡化等問題

30、的日益嚴(yán)峻，各沿海國家紛紛把目光投向海洋，加快了對海洋的探索研究和開發(fā)利用。一場沿海國家紛紛把目光投向海洋，加快了對海洋的探索研究和開發(fā)利用。一場以開發(fā)海洋為標(biāo)志的以開發(fā)海洋為標(biāo)志的“藍色革命藍色革命”正在世界范圍內(nèi)興起。海洋資源的開發(fā)正在世界范圍內(nèi)興起。海洋資源的開發(fā)利用，在很大程度上推動了經(jīng)濟的發(fā)展，滿足了人類向海洋要效益的愿望，利用，在很大程度上推動了經(jīng)濟的發(fā)展，滿足了人類向海洋要效益的愿望，但在海洋開發(fā)探索迅速升溫的同時，海洋資源也正承受著前所未有的壓力。但在海洋開發(fā)探索迅速升溫的同時，海洋資源也正承受著前所未有的壓力。寫 作 訓(xùn) 練弄清文路 寫作妙筆生花假設(shè)你是李華，最近你班就假設(shè)你

31、是李華，最近你班就“人類是否應(yīng)該進行海洋探索人類是否應(yīng)該進行海洋探索”進行了討進行了討論。請根據(jù)討論結(jié)果，寫一封論。請根據(jù)討論結(jié)果，寫一封80詞左右的信給某英文報社的編輯來報道此事。詞左右的信給某英文報社的編輯來報道此事。贊成的理由贊成的理由反對的理由反對的理由你的看法你的看法1.獲取更多的海底資源；獲取更多的海底資源；2.提高對地球上生命的理解。提高對地球上生命的理解。1.造成海洋污染，導(dǎo)致海洋生物死亡；造成海洋污染，導(dǎo)致海洋生物死亡；2.破壞生態(tài)系統(tǒng)。破壞生態(tài)系統(tǒng)。注意：開頭和結(jié)尾已給出，不計入總詞數(shù)。注意：開頭和結(jié)尾已給出，不計入總詞數(shù)。審題審題寫作要求是闡述寫作要求是闡述“人類是否應(yīng)該

32、進行海洋探索人類是否應(yīng)該進行海洋探索”的討論結(jié)果，寫作時應(yīng)的討論結(jié)果，寫作時應(yīng)注意下面幾點：注意下面幾點：1.確定文體：這是一篇議論文。寫作時要注意議論文的寫作特點。確定文體：這是一篇議論文。寫作時要注意議論文的寫作特點。2.主體時態(tài)：文章應(yīng)以一般現(xiàn)在時為主。主體時態(tài)：文章應(yīng)以一般現(xiàn)在時為主。3.主體人稱：由于是關(guān)于主體人稱：由于是關(guān)于“人類是否應(yīng)該進行海洋探索人類是否應(yīng)該進行海洋探索”的話題，所以人稱的話題，所以人稱應(yīng)該以第三人稱為主。應(yīng)該以第三人稱為主。謀篇謀篇第一段：說明討論的話題第一段：說明討論的話題人類是否應(yīng)該進行海洋探索；人類是否應(yīng)該進行海洋探索；第二段：說明正方和反方的觀點及理由

33、；第二段：說明正方和反方的觀點及理由；第三段：表明自己的觀點。第三段：表明自己的觀點。核心詞匯核心詞匯1.執(zhí)行執(zhí)行_2.支持支持_3.也，又，還也，又，還 _4.反對反對_5.導(dǎo)致導(dǎo)致_6.造成生態(tài)系統(tǒng)破壞造成生態(tài)系統(tǒng)破壞_carry outin favour of/be foras well asbe against/object tolead tocause ecosystem destruction連詞成句連詞成句1.海洋探索使人們有可能發(fā)現(xiàn)新的藥物。海洋探索使人們有可能發(fā)現(xiàn)新的藥物。Sea exploration new medicines.2.海洋探索也使人們有可能發(fā)現(xiàn)新的食物和能源

34、。海洋探索也使人們有可能發(fā)現(xiàn)新的食物和能源。 Sea exploration new sources of food and energy.3.海洋探索可能會導(dǎo)致海洋污染。海洋探索可能會導(dǎo)致海洋污染。Sea exploration might marine pollution.4.海洋污染最終導(dǎo)致海洋生物死亡。海洋污染最終導(dǎo)致海洋生物死亡。Marine pollution finally .has made it possible for people to discoverhas also made it possible for people to discoverbring aboutl

35、eads the ocean creatures to death5.海洋探索可能有助于增進我們對地球上生命的了解。海洋探索可能有助于增進我們對地球上生命的了解。Sea exploration might help .6.科技進步了?？萍歼M步了。 7.我們可能有更多的選擇來管理這種平衡。我們可能有更多的選擇來管理這種平衡。We may this balance.improve our understanding of the life on the earthTechnology improves.have more options for managing句式升級句式升級1.請把第請把第1、

36、2句話按下面括號內(nèi)的提示詞合成一句話。句話按下面括號內(nèi)的提示詞合成一句話。(1)Sea exploration has made it possible for people to discover .(not only.but also.)(2)Sea exploration has made it possible for people to discover new medicines .(as well as)2.請把第請把第3、4句話按下面括號內(nèi)的提示合成一句話。句話按下面括號內(nèi)的提示合成一句話。Sea exploration might bring about marine pol

37、lution， .(which引導(dǎo)非限制性定語從句引導(dǎo)非限制性定語從句)3.請把第請把第6、7句話用主從復(fù)合句合成一句話。句話用主從復(fù)合句合成一句話。 ，we may have more options for managing this balance. not only new sources of food and energy but also new medicinesas well as new sources of food and energywhich finally leads theocean creatures to deathAs technology improve

38、s用適當(dāng)?shù)倪^渡詞語，把以上詞匯和句式，再加上聯(lián)想內(nèi)容，組成一用適當(dāng)?shù)倪^渡詞語，把以上詞匯和句式，再加上聯(lián)想內(nèi)容，組成一篇篇80詞左右的英語短文。詞左右的英語短文。參考范文參考范文Dear Editor，Recently our class has had a discussion about whether sea explorationshould be carried out.Some of the students are in favour of sea exploration.They say sea exploration has made it possible for peop

39、le to discover new medicines as well as new sources of food and energy.Others are against it.Although sea exploration might help improve our understanding of the life on the earth，it might bring about marine pollution，which finally leads the ocean creatures to death.It also might cause ecosystem des

40、truction.Yours，Li Hua返 回Personally，sea exploration should be balanced with economic needs.Hopefully，as technology improves，we may have more options for managing this balance.詞匯清單詞匯清單核心短語核心短語應(yīng)用詞匯：應(yīng)用詞匯：1. exploit:exploit sthto do sth,exploit sb.with sth,exploitation n. explorer n.2.mercy:be merciful t

41、o/ towards, have mercy on/upon sb,show mercy to sb3. possession:be in possession of ,be in the possession of (sb)= be in ones possession4. arrest: arrest sb. for doing, arrest ones attentionwithout mercy, be home to, take action, as well as, vast amounts of, look into ones eyes, be closely connected

42、 to, all of a sudden,first of all, a variety of, because of認(rèn)知詞匯：認(rèn)知詞匯：directory,meanwhile,gallon,opponent,log,marine,arrest拓展詞匯：拓展詞匯：exploitexploition, murdermurderer, mercymercifulmercifullypossessionpossessAlthough this was banned in 1982, some countries are still “murdering” these intelligent crea

43、tures without mercy.(本句是一個復(fù)合句。本句是一個復(fù)合句。some countries are.是主是主句；句；although=though是從屬連詞，意為是從屬連詞，意為“雖然雖然;盡管盡管”，引導(dǎo)讓步狀語從，引導(dǎo)讓步狀語從句。句。)重點句式重點句式ExerciseI.單句語法填空 1. Our English teacher is a_ (mercy) woman, and she seldom criticises us. 2.Repairing our_ (possess) and changing our spending habits may be the b

44、est way to reduce the amount of rubbish and take care of our environment. 3. Although Ross Sea is abundant in species, it is in danger of _(exploit) by humans.4.We were just talking _the most exciting football match es that we had ever watched recently. 5. The technology is so advanced that it is being used across_ wide variety of professions.mercifulpossessions exploitation ofa 6. It is said that vast amounts _money have spent on the project. 7.Mor