Unit 3 Sea Exploration Using Language （ppt课件）-2022新人教版（2019）《高中英语》选择性必修第四册.pptx

1、UNIT 3 SEA EXPLORATION Using Language Using LanguageExpression your opinions on see explorationdiscover new speciesdetect energy or mineral and food resourcespredict potential disastersWhat do you know about sea exploration?Pre-readingsolve marine scientific mysteriesfind more space for human existe

2、nce and development find out the mutual effects of human activities and the marine environment search for cultural relicsfind ways to make better use of the marine resources and protect the environmentdevelop and apply deep sea high technologyScanning1.Read the two texts quickly and fill in the foll

3、owing form.Item Text 1 Text 2Topic of the passagegenre(体裁体裁)three parts in an argumentative essay the authors attitudes argumentative essayargument(论点论点),evidence(论据论据),restatment(重述重述)/recommendation(提议提议)/a call tor actionopposedsupportiveShould the sea be explored?2.Look at the two charts below a

4、nd decide which one supports which text.Text 2Text 1Skimming Item Text 1 ArgumentEvidenceRestatement1.Read the two texts again and fill in the following form.Sea exploration has caused many problems and will continue more.More pollutionDamaging miningOverfishingLess exploration and more protectionFa

5、cts:The deepwater Horizon,plastic pollutionCause and effect:fossil fuel and climate change Examples:whales and dolplins Item Text 2 ArgumentEvidenceRestatement2.Read the two texts again and fill in the following form.It is important for our future.It helps us manage its resources better and predict

6、disasters.We need new resources for future development.Potential environmental risks should be balanced with economic needs.Example:help address issues like climate changeExplanation:logging newspecies.Explanation:amounts of.To truly understand our planet,we must explore the oceans which cover most

7、of it.Read for summarizing the structure of Text 1.StructurePara.1 Sea exploration has caused many problems and will contine to cause more.Para.2 Problem 1 pollutionPara.3 Problem 2 mining for resourcesPara.4 Problem 3 overfishingPara.3 RestatmentLess exploration and more protectionRead for summariz

8、ing the structure of Text 2.Para.1 Sea exploration is a must for the understanding of our planet.Para.1 Sea exploaatin is imprtant fo rour future.Para.2 It will also help us manage its resources bettter.Para.3 We need new resources for future developmentPara.4 Potential environmental risks should be

9、 balanced with economic needs.Read the two texts again and find out the following expressions:Expressions expressing negative opinions:l.cause.problemslMore exploration means more pollution.l.is very damaging(to.)l.the negative cycle will continue.l.is warning us that.l.is another probleml.without m

10、ercylExpressions expressing positive o objectiove opinions:lTo do sth,we must.l is important for.l.help address important issueslMore research is necessary.l.may us help manage./discover./predict.l.will improve.lshould be balanced with.lmay have more options forSummary of the languae 假设你是李华，最近你班就假设你

11、是李华，最近你班就“人类是否应该进行海洋探索人类是否应该进行海洋探索”进进行了讨论。请根据讨论结果，写一封行了讨论。请根据讨论结果，写一封8080词左右的信给某英文报社的词左右的信给某英文报社的编辑来报道此事。编辑来报道此事。赞成的理由赞成的理由反对的理由反对的理由你的看法你的看法1.1.获取更多的海底资源；获取更多的海底资源；2.2.提高对地球上生命的提高对地球上生命的理解。理解。1.1.造成海洋污染，导致造成海洋污染，导致海洋生物死亡；海洋生物死亡；2.2.破坏生态系统。破坏生态系统。注意：开头和结尾已给出，不计入总词数。Writing审题（三要素）第一段：引出讨论的话题你班最近举行一场有

12、关人类是否应该进行海洋探索的讨论；第二段：支持全班在这个问题上不一致，再分别说明正方和反方的观点及理由（主论点+分论点+论据）；第三段：表明自己的观点。1.确定文体：议论文2.主体时态：一般现在时3.主体人称：第三人称it谋篇（三段式）Useful expressionsUseful expressions1.Recently our class has held a heated debate/discussion over/about/on the exploration of sea.2.Opinion/The class is divided on this issue.大家、全班在这

13、个问题意见有分歧。大家、全班在这个问题意见有分歧。3.The class is deeply split over/on the issue of.全班在全班在.问题上意见分歧严重。问题上意见分歧严重。4.Different students have different opinions about it.关于这个问题不同的学生有不同的意见关于这个问题不同的学生有不同的意见5.Students disagree about/on this issue.同学们在这个问题上意见同学们在这个问题上意见不一致。不一致。6.Some students are in favour of sea expl

14、oraton.They think that sea needs to be explored fully.7.Some of the students subscribe to the view that.For one thing,it will make it possible for people to discover new sources of food and energy.For another,it might help improve our understanding of the life.8.With all above mentioned taken into c

15、onsideration,it is worthwhile to carry out sea exploration.9.However,on the other hand,others students hold different/opposite opinions/are against it.They believe that,necessary as sea exploration is,it does lead to a handful of problems.10.Firstly,it might bring about marine pollution which finall

16、y leads the ocean creatures to extinction.11.Worse still,it might do damage to the ecosystem.12.In conclusion,the benefits of sea exploration greatly outweigh the risks.13.Personally,sea exploration should be balanced with economic needs.14.Hopefully,as technology improvees,we may have more options

17、for managing this balance.Dear Editor，Recently our class has had a heated discussion/debate about whether sea exploration should be carried out.Opinion is divided on this issue.Some students are in favour of sea exploration.They say sea exploration has provided many benefits for humans.For example,i

18、t has made it possible for people to discover new medicines as well as new sources of food and energy.However,Others hold opposite opinions about it.They argue that although sea exploration might help improve our understanding of the life on the earth,it might bring about marine pollution,leading th

19、e ocean creatures to extinction and causing ecosystem destruction.Personally,sea exploration should be balanced with economic needs.Hopefully,as technology improves,we may have more options for managing this balance.Useful words and expressions1.When people talk/speak of/about exploring the sea more

20、 =Talking of/about.=When it comes to more sea exploration 当人们谈到多进行海洋探索的时候当人们谈到多进行海洋探索的时候2.exploit vt.开采，开发，开拓开采，开发，开拓(minerals/resources/rainforests for.)vt.运用，发挥运用，发挥(the potential of)vt.利用利用(an opportunity/ones youth)（为自己谋利）（为自己谋利）vt.剥削，压榨（某人）剥削，压榨（某人）3.cause/lead to/produce/present/result to many

21、 problems 造成许多问题造成许多问题4.spill(oil)into the sea 使使.溢出、洒出、溢出进入溢出、洒出、溢出进入.pspill(water/milk/coffee)down/over/on/onto ones shirt/desk 使使.洒、泼倒在衬衫、桌子上洒、泼倒在衬衫、桌子上p(water/milk/coffee)spill from/out of the pot（液体）从（液体）从.溢出来溢出来p(water/milk/coffee)spill down/over/on/onto ones shirt/desk（液（液体）洒在（体）洒在（.）Thousand

22、s of gallons of crude oil _(spill)into the ocean.(spilt,spilt;spilled,spilled)were spilt5.Plastic pollution is also bad,_(kill)many birds and fish.The hospital has recently obtained new medical equipment,_(allow)more patients _(treat).killing,allowing为为 现在分词短语，作结果状语，现在分词短语，作结果状语，to be treated 为为不定式短

23、语作宾补不定式短语作宾补。6.be very damaging(to ones health/the environment)=be very harmful(to.)=cause much damage/harm to.=dam7.warn sb that./of sth 警告某人警告某人.8.hunt(animals)for(their meat/fur.)为了为了.而猎杀而猎杀.killingallowingto be treated9.(murder/hunt/kill/treat)without mercy =.mercilessly 无情地无情地.10.human beings p

24、ossessions 人类的财产人类的财产pones treasured/prized/precious possession(s)某人珍贵的财产某人珍贵的财产pones personal possessions/belongings 某人个人财产某人个人财产p(sb)be in possession of sth 某人拥有、某人拥有、占有、持有占有、持有某物某物p=(sb)has possession of sth=possess sthp(sth)be in sbs possession/be in the possession of sb 某物为某人所拥有、某物为某人所拥有、占有、持有占

25、有、持有ptake possession of sth 开始拥有、占有、持有开始拥有、占有、持有 =begin to possess sth _ her fathers death,she came into possesion of a vast fortune./a vast fortue came into her possession.(=she got/received a vast forune.)You cannot legally take possession of the property _ three weeks after the contract is signed

26、.He was charged with _（拥有）（拥有）a shotgun without a licence.11.address/tackle/solve important issues 解决、解决、应对重要问题应对重要问题 =addres oneself to important issues12.manage one resources/time/money well/better 很好很好/更好地管理某人的资源、时间、资金更好地管理某人的资源、时间、资金On/uponuntilpossessing/in possession of 13.logging new species/

27、all phone calls =officially record/make an offical record of.正式纪录.14.accessing the deep ocean 进入深海15.vast/enormous/huge/tremendous amounts of.(+不可数名词不可数名词)=a.amount of./=a.quantiy of./=a great deal of 大量的大量的.16.balance.with/against/and.权衡权衡/比较（利弊）比较（利弊）pbalance.with/and.同等重视、兼顾同等重视、兼顾There is a need

28、 _(balance)the demands of the workplace _ those of family life.Devolopment has to be balanced _ environmental cencerns.You have to balance the advantages of living in a big city _ the disadvantages.She tries to balance home life _ career.to balancewith/againstwith/againstwith/againstwith/and17.Hopef

29、ully,as technology improves,we may have more options for managing this balance.随着技术的进步，我们有望会有更多的选择来驾驭这一平衡。随着技术的进步，我们有望会有更多的选择来驾驭这一平衡。=It is hoped that,with the improvement of technology,we may.=We are/feel hopeful that,.=As/With.,we are/feel hopeful of having more options for managing this balance.2

30、.as 引导的状语从句引导的状语从句1.He became less active as he grew older.2.As his family was unable to pay tuition,he was forced to give up his studies.3.When in Rome,do as Romans do.4.Its not so/as difficult as I expected.5.Young as he is,he knows a lot about geography.时间状语时间状语原因状语原因状语让步状语让步状语方式状语方式状语比较状语比较状语【结论

31、结论】as 引导让步状语从句时，引导让步状语从句时，常将句中的表语（包括形容词、常将句中的表语（包括形容词、名词或分词）、状语或动词原形名词或分词）、状语或动词原形提至句首，再将提至句首，再将as置于主语之前置于主语之前，名词前不带冠词名词前不带冠词。17.have more options for(managing this balance)对对有更多的选择有更多的选择（处理这种平衡）（处理这种平衡）phave/there be/with(many/a number of/a variety of/.options for(cutting costs)available to/for sb

32、open to sb 有（很多、好几种、各种）选择（方案）做某事、给某人有（很多、好几种、各种）选择（方案）做某事、给某人 There are various options/choices/alternatives open/available to you.We have three different options for finacing the house.我们有三种不同的选择给这栋房子提供资金。我们有三种不同的选择给这栋房子提供资金。phave the option/choice of(bicycling or taking the bus)可以选择做某事可以选择做某事phave no option/choice/alternative but to do sth(abandon the meeting)不得不做某事不得不做某事(=have to do sth)pone/another/the only option is to do sth 一种、另一种、唯一一种选择方案就是一种、另一种、唯一一种选择方案就是poffer options/optional courses/classes/subjects(in designfor the students senior year)（为（为.）开设（设计）选修课）开设（设计）选修课Homework