Unit 3 Sea exploration Reading for writing.-ppt课件 2021-2022学年高中英语新人教版选择性必修第四册.pptx

1、 Using languageExpress your opinions on sea exploration XB4 Unit 3 Sea ExplorationHere is the trailer（预告片）of James Camerons Deep-sea Challenge 3D，a documentary film.Lead in Should oceans be explored?The ocean is a treasure.Oceans provide a breeding ground for life,connect the world and the promote d

2、evelopment.Despite regular discoveries about the ocean,much remains unknown.Scientists predict that 95%of the ocean is unmapped and unexplored.So human being is keeping on exploring the ocean.However,there are arguments about sea exploration.1.What are the two authors opinions about the sea explorat

3、ion?opposedsupportive2.What is the text type of the two texts?Argumentative essay3.Read the two texts and find the arguments and evidence check the main arguments主论点主论点,sub-points分论点分论点and evidence论据论据 in it.121.Exploration causes pollution.Deepwater Horizon oil spill Plastic pollution2.Mining for r

4、esources is damaging.It hurts the Arctic.Burning fossil fuels adds to climate change.3.Overfishing is an issue.Whales and dolphins are hunted.Banned,but some countries still doing it.3main argument主论点主论点sub-points分论点分论点evidence论据论据restatement/重申重申a call to action号召号召Argumentative Essay(Text 1)Conclu

5、sion(Para.5)Main Point(Para.1)Body(Para.2 4)(sub-points&supporting ideas)Reading：Main structure 121.Sea exploration is important for our future.Scientific research ships can help address important issues like climate change.2.Understanding more about the sea will also help us manage its resources be

6、tter.New medicines,food resources and energy.Predict events such as earthquakes.33.We need new resources for future development.Vast amounts of resources may be under the sea and ice.check the main arguments主论点主论点,sub-points分论点分论点and evidence论据论据 in it.Exploration and mapping of the deep sea would b

7、e for the benefit of all citizens not just in economic terms but in opportunities for unexpected discoveries.But what we should take into account is how to strike a balance between the protection and exploitation of it.Should oceans be explored?Language points 1cause many problems 2spill oil into th

8、e sea3mine for resources4without mercy 5address important issues6accessing the deep ocean 7have more options for 造成许多问题造成许多问题石油流入海中石油流入海中开采资源开采资源无情地无情地应对重要问题应对重要问题对对有更多的选择有更多的选择深海探索深海探索Language points:Important phrases(P32)1.Plastic pollution is also bad,killing many birds and fish and has even been

9、 found in our tap water.(Para.2)塑料污染也十分严重，导致许多鸟类和鱼类死亡，甚至在塑料污染也十分严重，导致许多鸟类和鱼类死亡，甚至在我们的自来水中也发现了塑料污染。我们的自来水中也发现了塑料污染。分析：分析：killing为为 v-ing，作状语。，作状语。The hospital has recently obtained new medical equipment,_(allow)more patients to be treated.(2017 天津)allowingLanguage points:Important sentences(P32)高考链接高

10、考链接1.Hearing the noise,I turned round.2.Being too young,he couldnt join the army.3.Working hard,youll succeed.4.Admitting what she said,I still think that she hasnt tried her best.5.He walked down the river,singing softly to himself.6.His parents died in the war,leaving him an orphan.时间状语时间状语原因状语原因状

11、语条件状语条件状语让步状语让步状语伴随状语伴随状语结果状语结果状语Language points:Important sentences(P32)v-ing 形式作状语形式作状语1._(give)more attention,the tree could have grown better.2.The research is so designed that once _(begin)nothing can be done to change it.3._(suffer)such heavy pollution already,the river couldnt be cleaned up.G

12、ivenbegunHaving sufferedLanguage points:Important sentences(P32)即学即练即学即练2.Hopefully,as technology improves,we may have more options for managing this balance.(Para.4)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。用用as,when,while填空。填空。1._ I admit his good points,I can see his bad ones.2.I had

13、just started back for the house to change my clothes _ I heard the voices.3.I had not been reading for half an hour _ I heard steps outside.4.She stopped _ she might have succeeded next time.5._ it grew darker,it became colder.WhilewhenwhenwhenAsLanguage points:Important sentences(P32)as 引导的状语从句引导的状

14、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.6.Try as he might,he didnt pass the exam.7.Child as he is,

15、he knows a lot.时间状语时间状语原因状语原因状语让步状语让步状语让步状语让步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。Language points:Important sentences(P32)1.空气的缺失，也解释了为什么星星在太空中似乎不像在地空气的缺失，也解释了为什么星星在太空中似乎不像在地球上看的那样闪烁

16、。球上看的那样闪烁。2.尽管雨下得很大尽管雨下得很大，他们，他们还是还是继续在地里干活。继续在地里干活。3.虽然我们被敌人包围了，但是我们设法前进。虽然我们被敌人包围了，但是我们设法前进。Surrounded as we were by the enemy,we managed to march forward.Hard as it was raining,they went on working in the field.The absence of air also explains why the stars do not seem to twinkle in space as they

17、 do from the earth.Language points:Important sentences(P32)即学即练即学即练This video may help you better understand sea exploration.假设你是李华，最近你班就假设你是李华，最近你班就“人类是否应该为了城市建设对土人类是否应该为了城市建设对土地进行开发地进行开发”展开展开了讨论。请根据讨论结果，写一封了讨论。请根据讨论结果，写一封100100词左右词左右的信给某英文报社的编辑来报道此事。的信给某英文报社的编辑来报道此事。Post-reading:Writing 赞成的理由赞成的理由

18、反对的理由反对的理由你的看法你的看法1.城市的发展需要修建更多的道城市的发展需要修建更多的道路，给人们带来方便；路，给人们带来方便；2.有利于经济的发展有利于经济的发展。1.农业是根本；农业是根本；2.绿化减少，绿化减少，会造成更多的污染。会造成更多的污染。本单元的写作任务是辩论性议论文。本单元的写作任务是辩论性议论文。一般包括四段：一般包括四段：第一段第一段说明辩论的主题；说明辩论的主题；第二段第二段表明正方的观点及其理由；表明正方的观点及其理由；第三段第三段表明反方的观点及其理由；表明反方的观点及其理由；第四段第四段陈述自己的观点。陈述自己的观点。或或分为三段：分为三段：第一段说明辩论的主

19、题；第一段说明辩论的主题；第二段表明正方第二段表明正方或或反方的观点及理由；反方的观点及理由；第三段表明作者自己的观点。第三段表明作者自己的观点。技 法 点 拨文体分析 把握写作动脉写作指导 The following questions may help you.lWhat is the purpose of land exploitation?lHow does land exploitation help us to construct the city?lHow does land exploitation cause damage?lIs there a good balance b

20、etween protection and exploitation?Imitation:When people talk of exploring the sea more,they usually mean exploiting it.仿写：当人们谈到城市建设时，那就意味着要开发土地。Opponents may be concerned,but sea exploration is important for our future.仿写：反对者有可能会对此很担心，但开发土地对我们的未来是非常重要的。When people talk of/When it comes to urban con

21、struction more,they usually mean exploiting the land.Opponents/Objectors may be concerned,but land exploration is important for our future.Useful expressions1.很多新的楼房建了起来，路也都拓宽了。给人们带来了极大的便利。很多新的楼房建了起来，路也都拓宽了。给人们带来了极大的便利。Many new houses and roads.2.开发过多的土地开发过多的土地可能会造成农田减少。可能会造成农田减少。Land exploitation m

22、ight farmland lessened.3.绿化减少会造成更多的污染问题绿化减少会造成更多的污染问题。Less green will .have been built It will definitely bring convenience to the citizens.bring aboutcause a large number of problemshave been widened When people talk of/When it comes to urban construction more,they usually mean exploiting the land.

23、Opinions on whether the land should be exploited for the purpose of urban construction differ from person to person.Obviously,the population of the world is growing,thus leading to the need for the land exploration.Many new houses have been built and roads have been widened,which will definitely bri

24、ng convenience to the citizens.Moreover,it will boost the economic development.However,land exploitation might bring about farmland lessened.Whats worse,less green/a large-scale deforestation might cause a large number of problems.In my view,we need to protect our environment while exploiting the la

25、nd.Sustainable development does matter.近些年近些年,海洋旅游业发展迅速。假定你是你校英文报的一名记者海洋旅游业发展迅速。假定你是你校英文报的一名记者,请以请以“The advantages and disadvantages of developing ocean tourism”为题为题,写一篇报道写一篇报道,谈谈发展海洋旅游的利与弊。谈谈发展海洋旅游的利与弊。内容包括内容包括:(1)发展海洋旅游的利与弊发展海洋旅游的利与弊;(2)你如何看待海洋旅游的发展。你如何看待海洋旅游的发展。注意注意:(1)词数词数80左右左右;(2)可以适当增加细节，以使行文

26、连贯。可以适当增加细节，以使行文连贯。Post-reading:Writing 发展海洋旅游的利：发展海洋旅游的利：发展海洋旅游的发展海洋旅游的弊：弊：Discussion:udevelop economy in coastal areasuincrease job opportunities cause serious ocean pollution crowded tourists break the balance of nature break the ecological balanceUseful expressions1.There is a heated debate over

27、 the exploration of sea,and from my point of view.2.When it comes to sea exploration,peoples opinions differ a lot.3.It is through sea exploration that many valuable resources are uncovered.4.What calls for your special attention is that.5.6.Necessary as sea exploration is,it does lead to a handful

28、of problems,including.7.With all above mentioned taken into consideration,it is worthwhile to.8.In conclusion,the benefits of sea exploration greatly outweigh the risks in that.The advantages and disadvantages of developing ocean tourism In recent years,the ocean tourist industry has become the new

29、growth of economic development in coastal areas,which is considered to have great economical potential by some experts.However,in addition to the huge profit it brings,there is increasing concern about the popularity of ocean tourism.Some people hold the view that it will cause serious ocean pollution and crowded tourists will ruin the balance between nature and human beings.In my view,we need to protect our environment while developing ocean tourism.Sustainable development does matter.