1、UNIT 3 SEA EXPLORATIONUsing Language discover new speciesdetect energy resourcespredict potential disastersSubmarine Mineral ResourcesWhat are the advantages of sea exploration? The ocean is rich in biological resources and provides a specimen for biological science research in terms of the diversit
2、y of global biological resources. The oceans own tidal changes contain almost unlimited energy for generating electricity. Help predict the potential disasters, such as earthquakes and tsunamis.What are the disadvantages of sea exploration? If undersea oil is not exploited properly, it can pollute t
3、he sea. Possibility of risks to ruin the ecosystems around the area. Lead to the destruction of ocean treasures. What type essay is this text? A.A narrative(叙事性的叙事性的) essay. B.A descriptive(描述性的描述性的) essay. C.An expository(说明性的说明性的) essay. D.An argumentative(议论性的议论性的) essay.What are the authors opin
4、ions to sea exploration in these two texts? Text 1: Sea exploration has caused many problems and will continue to cause more. Text 2: Sea explloration is important for our future.：Main structure Argumentative Essay Main Point (Para. 1) Body (Para. 2 4) Conclusion (Para. 5)supporting ideasText 1:supp
5、orting ideas More pollution. Mining for resources is damaging. Overfishing Text 2:supporting ideas Scientific research ships can help address important issues We need to understand what is happening to our planet so that we can take action. Helping us manage its resources better. Finding vast amount
6、s of resourcesText 1:Conclusion If we dont protect it, future generations wont forgive us.Text 2:Conclusion Environmental risks should be balanced with economic needs. When it comes 1_sea exploration,different people have different opinions. Some people think sea exploration has caused many problems
7、 and 2_(continue) to cause more. They are afraid that exploiting more means polluting more, with plastic pollution 3_(kill) many birds and fish.Mining for resources is very damaging. Besides, overfishing is another problem. Whales and dolphins 4_(hunt)for their meat.Others think 5_necessary to do mo
8、re research on the sea.will continuekillingare huntedit 6_(understand) our planet, we must explore the oceans 7_cover most of it. Understanding more about the sea will also help us manage its resources8_(well).9_(log)new species will improve our understanding of life on the earth.In my opinion,as te
9、chnology improves,we will have the 10_ (able) to keep this balance between sea exploration and economic needs.To understandwhichbetterLoggingabilitynegative cyclespill sth into the seamine for resourceswithout mercy address important issuestake action have more options for tap waterso-calledbe home
10、toin possession ofaccess the deep oceanbe balanced withamounts of 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。平衡。 本句是复合句，as technology improves是时间状语从句，as意为“随着” He became less active as he grew olde
11、r. 随着年龄的增长，他变得不那么活跃了。 as引导时间状语从句 As time goes by, the job will let you use all your skills to the maximum. =With time going by, the job will let you use all your skills to the maximum. 随着时间的推移，这份工作将让你最大限度地发挥你的技能。 随着时间的推移 as time goes by (as引导时间状语从句) with time going by (with复合结构) 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,请以“The advantages and disadvantages of developing ocean tourism”为题,写一篇报道,谈谈发展海洋旅游的利与弊。内容包括: (1)发展海洋旅游的利与弊; (2)你如何看待海洋旅游的发展。 注意:(1)词数80左右;(2)可以适当增加细节，以使行文连贯。
