1、人教版（人教版（2019）选择性必修四）选择性必修四Unit 3 Sea ExplorationUsing Language(Reading for Writing)Express your opinions on sea explorationLearning objectivesBy the end of this section,you will be able to:1.find the arguments and evidence of two passages by reading;2.grasp structures of the two texts;3.discuss your
2、 opinions about sea exploration;4.write an argumentative essay to express your opinions on sea exploration;5.cooperate with group mates actively through checking your argumentative essays together.Look and think.Lead-in Should the sea be explored?Argumentative essays.Argument,evidence,restatement/re
3、commendation/a call to action.Read the first paragraph of the two texts and answer the questions.Pre-writing What is the type of the two passages?What are the three parts in argumentative essay?Read the two texts below and find the arguments and evidence in them.Analyze the structure of the first te
4、xt.Sea exploration has caused many problems and will continue to cause more.Exploration causes pollution.Mining for resources is damaging.Overfishing is an issue.l Deepwater Horizon oil spilll Plastic pollution l It hurts the Arctic.l Burning fossil fuels adds to climate change.l W h a l e s a n d d
5、olphins are hunted.l Banned,but some countries still doing it.The sea is home to life,not human beings possessions.We should protect the sea.Analyze the structure of the second text.To truly understand our planet,we must explore the oceans which cover most of it.Sea exploration is important for our
6、future.Understanding more about the sea will also help us manage its resources better.W e n e e d n e w resources for future development.l Scientific research s h i p s c a n h e l p address important issues like climate change.l New medicines,food resources and energy.l Predict events such as earth
7、quakes.l Vast amounts of resources may be under the sea and ice.Environmental risks should be balanced with economic needs.Look at the two charts below and decide which one supports which text.Text 2Text 11.I think sea exploration is a wonderful idea,because even if there are no immediate rewards fo
8、r it,to explore and find out more about our world is always a good thing.2.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.We do not know what we dont know;We need to explore the ocean so that we can
9、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.In groups,discuss the following questions and take notes.1.What is your opinion abou
10、t sea exploration?Do you agree with one argument more than the other?2.Has your opinion changed after reading the two texts?Why or why not?3.Are there any other aspects of sea exploration not mentioned that you think are important?Based on your note,write an argumentative essay on sea exploration,ex
11、pressing your opinions with supporting facts.While-writingEdit.Post-writing Self-editing.Are my opinions clear and do my facts support my opinions?Does my information flow easily from one paragraph to another?Do I stay focused on my point of view throughout the writing?Do I save the most compelling
12、or strongest point for the end of the paper?Does my writing make sense?Am I convinced?Will my readers be convinced?Peer-editing.Evaluation.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 o
13、ceans,their reasoning is 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.T
14、here could be life 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
15、it is causing 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 e
16、nvironment 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 sa
17、mples 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.Words and
18、 Expressions The sea is home to life,not human beings possessions.(P32)海洋是生命的家园，而不是人类的私产。possession /pzen/n.usually pl.个人财产；拥有；控制个人财产；拥有；控制personal possessions个人财产get/take/gain/have possession of拥有；占有（动词短语）be in possession of占有；拥有；持有（介词短语）be in the possession of sb.=be in sb.s possession为某人所有；在某人的控制
19、下（介词短语）He was charged with possessing a shotgun without being in possession of a license.他被指控无证持有猎枪。1 Opponents may be concerned,but sea exploration is important for our future.(P32)反对者也许会忧心忡忡，但是海洋探索对我们的未来十分重要。opponent /pnnt/n.反对者；对手；竞争者反对者；对手；竞争者political opponents 政敌a dangerous/worthy opponent一个危险
20、的/可敬的对手opponents of the violence暴力的反对者 It is said that our opponent is great,so our team will be trained every day after school from tomorrow to win the game.据说我们的对手很厉害，所以我们队从明天开始每天放学后都要训练以赢得比赛。2 Logging new species will improve our understanding of life on the earth.(P32)记载新物种将提升我们对地球上的生命的了解。log /l
21、/vt.把把载入正式记录；记录载入正式记录；记录 n.正式记录；日志；原木正式记录；日志；原木 log in/on登录，进入（计算机系统）log out/off注销，退出（计算机系统）keep a log记日志（尤指航海/飞行日志）logs for the fire 烧火用的木材 Using the computer in hand,you can log on with the password and download the document.用手头上的电脑，你可以用这个密码登录并下载文件。3 Polish up your argumentative essay with the advice from your classmates and teacher.Read your classmates argumentative essays and recommend one you prefer.
