【课件】Unit 3 Using language 课件-2021-2022学年高中英语人教版（2019）选择性必修第四册.pptx

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1、UNIT 3 UNIT 3 SEA EXPLORATIONSEA EXPLORATIONExpressyouropinionsonseaexplorationShouldtheseabeexplored?benefits:1.Getnewsourcesoffood.2.Wecangetfossilfuelssuchasoil,gasandcoal.negativeeffects:1.Spillingoilintotheseacausespollution.2.Causeplasticpollution.Whatarethetwoauthorsopinionsabouttheseaexplora

2、tion?Letslearnmoredetailsinthepassage.disagreeagreeSkimthetwotextsandanswerthequestionsbelow.1.Whatisthetexttypeofthetwotexts?A.Narration(记叙文记叙文).B.Exposition(说明文说明文).C.Practicalwriting(应用文应用文).D.Argumentation(议论文议论文).2.Whatarethethreepartsinargumentativeessay?argument论点论点;evidence论据论据;restatement重申

3、重申/recommendation推荐推荐/acalltoaction号召号召Read the two texts silently and find the arguments 划横线划横线and evidence 划波浪线划波浪线Text 1Text 1Para.1-mainargument主论点主论点Seaexplorationhascausedmanyproblemsandwillcontinuetocausemore.Part.1:ArgumentPart.3:RestatementPart.2:Evidencecheckthearguments分分论点点andevidence论据据

4、init.1argument evidence21.Explorationcausespollution.DeepwaterHorizonoilspill Plasticpollution2.Miningforresourcesisdamaging.IthurtstheArctic.Burningfossilfuelsaddstoclimatechange.3.Overfishingisaproblem.Whalesanddolphinsarehunted.Banned,butsomecountriesstilldoingit.3checkthearguments分分论点点andevidenc

5、e论据据init.1argument evidence21.Explorationcausespollution.DeepwaterHorizonoilspill Plasticpollution2.Miningforresourcesisdamaging.IthurtstheArctic.Burningfossilfuelsaddstoclimatechange.3.Overfishingisaproblem.Whalesanddolphinsarehunted.Banned,butsomecountriesstilldoingit.3text 2 ：main argument 主论点Wem

6、ustexploretheoceanswhichcovermostofit.2023/3/2712checktheargumentsandevidenceinText2.argument evidence1.Seaexplorationisimportantforourfuture.Scientificresearchshipscanhelpaddressimportantissueslikeclimatechange.2.Understandingmoreabouttheseawillalsohelpusmanageitsresourcesbetter.Newmedicines,foodre

7、sourcesandenergy.Predicteventssuchasearthquakes.33.Weneednewresourcesforfuturedevelopment.Vastamountsofresourcesmaybeundertheseaandice.Lookatthetwochartsbelowanddecidewhichonesupportswhichtext.P332_Text 2_Text 1Writing:ArgumentativeessayonseaexplorationBased on your note,write an Based on your note,

8、write an argumentative argumentative essay on sea exploration,expressing your essay on sea exploration,expressing your opinions with supporting facts.opinions with supporting facts.The following questions may help you.The following questions may help you.What is the purpose of sea exploration?How do

9、es sea exploration help us to protect the sea?How does sea exploration cause damage to the sea?Is there a good balance between protection and exploitation?Use the PEEL method to help structure your Use the PEEL method to help structure your argument.argument.Point What point do you want to make?Evid

10、enceWhat facts and examples can you find to support your point?How reliable are the sources?ExplanationExplain how the facts support your opinion and show other opinions to be incorrect.LinkConnect this point to the next point,or back to the main point of the essay or paragraph.【文章架构】明确体裁话题议论文，探索海洋确

11、定时态人称一般现在时，第一人称布局文章架构首段：提出论点中段：事例论据尾段：明确结论列出核心要点1.使海洋可持续发展2.了解海洋环境3.更好地了解气候Useful ExpressionsMany nations have been faced with the problem of.Recently the problem has been brought into focus.Recently the issue has aroused great concern among.Nowadays there is a growing concern over.Never in our hist

12、ory has the idea that.been so popular.Faced with.quite a few people argue that.According to a recent survey.With the rapid development of.论点Some people think/believe that.,other argue/claim that.The opposite/reverse is.Obviously it has both advantages and disadvantages .has many advantages.For examp

13、le.However,just as every coin has two sides,.has its disadvantages It play(s)an important rolepart in.With the development of our economy and society，pollution is more and more serious论据From what has been discussed above,we can draw the conclusion that.It is high time that.We should take measures to

14、 control the rapidly increasing world population The government decided to take strong measures against.It is necessary that steps should be taken to.There is no easy method,but.might be of some help.To solve the above-mentioned problem,we must.In summary,if we continue to ignore the above-mentioned

15、 issue,more problems will crop up.结论Sample WritingEven 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 not very sound.Exploring is not the same as exploiting.When we e

16、xplore 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 life forms in the ocean,for example,that fit none of the neat categories we

17、 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 causing coral to die.We know that using less fossil fuel would cause the process to

18、 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 environment not very friendly to humans.This requires the development of new technologies

19、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 samples with has been used in factories and development of artificial limbs for humans.All

20、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 supportocean exploration.假定你是某假定你是某校的宣传校的宣传委员委员李华，应邀李华，应邀为学校网站为学校网站英文版写一篇有关海洋生物保护的英文版写一篇有关海洋生物保护的文章，请根据文章，请根据以下要点以下要点写一篇短文。写

21、一篇短文。1.海洋受污染海洋受污染的现状的现状;2.保护保护海洋的重要性。海洋的重要性。注意注意:1.词数词数100左右左右;2.可适当增加可适当增加细节，以细节，以使文章连贯使文章连贯。TheImportanceofProtectingOurOceansAsweallknow,therearevarietiesofresourcesunderthesea.However,thepasttenyearshaswitnessedthatsomecreatureshavediedout.Therefore,marinepollutionhasbeengreatlyconcernedbythewho

22、leworld.Ontheonehand,wemustmakepeoplerealizetheimportanceofprotectingtheocean.Asamatteroffact,toprotecttheoceanistoprotecthumanbeings.Ontheotherhand,thegovernmentshouldtakeimmediatemeasurestokeepthebalanceofnature.Innowayshouldweabandonprotectingtheenvironment.Onlybyraisingpeoplesawarenessofprotectingtheenvironmentandmakinggreateffortstopreventpollutioncantheproblembesolved.