高中英语人教版 (2019)选择性必修 第四册Unit 3 Sea Exploration教学课件ppt

这是一份高中英语人教版 (2019)选择性必修 第四册Unit 3 Sea Exploration教学课件ppt，共28页。PPT课件主要包含了Arguments，Evidences，Text 2，Text 1，开发利用剥削，谋杀凶杀 ，反对者对手竞争者，谋杀凶杀毁坏，仁慈宽恕恩惠，正式记录日志原木等内容，欢迎下载使用。
Read the first paragraph f the tw texts and answer the questins.
2 What are the three parts in argumentative essays?
1 What is the text type f the tw passages?
Paragraph 1 (Text 1)When peple talk f explring the sea mre, they usually mean expliting it. Sea explratin has caused many prblems and will cntinue t cause mre.
Paragraph 1 (Text 2)T truly understand ur planet, we must explre the ceans which cver mst f it. Oppnents may be cncerned, but sea explratin is imprtant fr ur future. Fr example, scientific research ships can help address imprtant issues such as climate change. We need t understand what is happening t ur planet s that we can take actin. Therefre, mre research is necessary.
Argumentative essay
Argument, evidence, restatement / recmmendatin / a call t actin
Text 1When peple talk f explring the sea mre, they usually mean expliting it. Sea explratin has caused many prblems and will cntinue t cause mre. Mre explratin means mre pllutin. The Deepwater Hrizn spilled ver 200 millin gallns f il int the sea in 2010. Plastic pllutin is als bad, killing many birds and fish, and has even been fund in ur tap water.
Read the tw texts belw and find the arguments and evidence in them.
Mining fr resurces is very damaging, especially in the Arctic. Because f climate change, there is less ice nw, which means we can lk fr mre fssil fuels further nrth. But if we burn these, the ice will melt mre and this negative cycle will cntinue. Climate change is warning us that smething is very wrng. Overfishing is anther prblem. Whales and dlphins are als hunted fr their meat r fr s-called research. Althugh this was banned in 1982, sme cuntries are still “murdering” these intelligent creatures withut mercy.The sea is hme t life, nt human beings’ pssessins. It is huge, but it is mre sensitive than we think. If we d nt prtect it, future generatins will nt frgive us.
1 Explratin causes pllutin.
2 Mining fr resurces is damaging.
3 Overfishing is an issue.
Deepwater Hrizn il spillPlastic pllutin
It hurts the Arctic.Burning fssil fuels adds t climate change.
Whales and dlphins are hunted.Banned, but sme cuntries still ding it.
Text 2T truly understand ur planet, we must explre the ceans which cver mst f it. Oppnents may be cncerned, but sea explratin is imprtant fr ur future. Fr example, scientific research ships can help address imprtant issues such as climate change. We need t understand what is happening t ur planet s that we can take actin. Therefre, mre research is necessary.Understanding mre abut the sea will als help us manage its resurces better. Lgging new species will imprve ur understanding f life n the earth. It may help us discver new medicines, as well as new surces f fd and energy. Accessing the deep cean may als help us t predict events such as earthquakes.
The ppulatin f the wrld is grwing and we need new resurces fr future develpment. There are prbably vast amunts f resurces under the sea and ice, nt just il and gas but als valuable minerals.Of curse, there are still envirnmental risks. Hwever, these shuld be balanced with ecnmic needs. Hpefully, as technlgy imprves, we may have mre ptins fr managing this balance.
1 Sea explratin is imprtant fr ur future.
2 Understanding mre abut the sea will als help us manage its resurces better.
3 We need new resurces fr future develpment.
Scientific research ships can help address imprtant issues like climate change.
New medicines, fd resurces and energy.Predict events such as earthquakes.
Vast amunts f resurces may be under the sea and ice.
Lk at the tw charts belw and decide which ne supprts which text.
Glbal trends in the state f wrld marine fish stcks
In grups, discuss the fllwing questins and take ntes.
1 What is yur pinin abut sea explratin? D yu agree with ne argument mre than the ther?2 Has yur pinin changed after reading the tw texts? Why r why nt?3 Are there any ther aspects f sea explratin nt mentined that yu think are imprtant?
1 What is yur pinin abut sea explratin? D yu agree with ne argument mre than the ther?
I think sea explratin is a wnderful idea, because even if there are n immediate rewards fr it, t explre and find ut mre abut ur wrld is always a gd thing.
2 Has yur pinin changed after reading the tw texts? Why r why nt?
Yes, my pinin has changed. Befre reading Text 1, I did nt knw that sea explratin culd add t sea pllutin, via deep sea drilling fr example.
3 Are there any ther aspects f sea explratin nt mentined that yu think are imprtant?
We d nt knw what we dn’t knw; We need t explre the cean s that we can better understand issues such as acidificatin which leads t seawater t becme mre acidic, and hw t fight these prblems; Studying the cean causes the creatin f new technlgies that can help us in ther areas.
Based n yur nte, write an argumentative essay n sea explratin, expressing yur pinins with supprting facts.
1 The fllwing questins may help yu.What is the purpse f sea explratin?Hw des sea explratin help us t prtect the sea?Hw des sea explratin cause damage t the sea?Is there a gd balance between prtectin and explitatin?
2 Use the PEEL methd t help structure yur argument.
3 Write yur draft and exchange it with a partner.
4 Get yur feedback and revise yur draft.
Even thugh the ceans make up abut 70% f the earth’s surface, mre than 80% f the ceans remain unexplred. While sme peple say that we shuld nt explre the ceans, their reasning is nt very sund. Explring is nt the same as expliting. When we explre a place, we g just t see and understand what is there.
We shuld explre the cean, first and fremst, because we d nt knw what we d nt knw. We thught we knew many abut the cean, but we were wrng. There culd be life frms in the cean, fr example, that fit nne f the neat categries we have fr life while we have n clue that they even exist.
This brings up the secnd pint. We already knw many things abut the cean, but we need t learn mre. A gd example is cean acidificatin. We knw that it is causing cral
Sample Writing
Finally, t d this research, we have t enter an extreme envirnment nt very friendly t humans. This requires the develpment f new technlgies that can als benefit us in ther areas. Fr example, in many ways, the deep cean resembles uter space. The technlgies can benefit each ther. Fr anther instance, the technlgy f a mechanical arm t cllect samples with has been used in factries and develpment f artificial limbs fr humans.
All in all, there are many gd reasns t explre the ceans. If we care abut science, abut prtecting ur ceans, and abut develping new technlgies, we need t d all we can t supprt cean explratin.
t die. We knw that using less fssil fuel wuld cause the prcess t slw dwn. Hwever, we need t learn mre t find ut hw t stp it. We need mre research t see what is ging n, and t cme up with plans and slutins.
explit vt. _____________________________________galln n. ______________________________________ murder vt. ______________________________________ n. ______________________________________ mercy n. ______________________________________ pssessinn. ______________________________________ ppnent n. ______________________________________lg vt. _____________________________________ n. ______________________________________marine adj. ______________________________________
[usually pl.] 个人财产；拥有；控制
把······载入正式记录；记录
加仑（容积单位，1英制加仑约等于4.5升）
murder1. n. the crime f killing sb deliberately 谋杀；凶杀• He was fund guilty f murder. 经裁决，他犯有谋杀罪。• She has been charged with the attempted murder f her husband. 她被指控意图谋杀丈夫。• t cmmit (a) murder 犯谋杀罪• a murder case/investigatin/trial 凶杀案件/调查；谋杀案的审判• The rebels were respnsible fr the mass murder f 400 civilians. 叛乱者对屠杀400名平民负有责任。• What was the murder weapn? 用的是什么凶器？• The play is a murder mystery. 这出戏说的是一桩神秘的凶杀案。
murder2. n. (infrmal) used t describe sth that is difficult r unpleasant 困难的事；讨厌的事• It’s murder trying t get t the airprt at this time f day. 这个时候要赶到机场简直要命。• It was murder (= very busy and unpleasant) in the ffice tday. 今天办公室里忙乱得要命。
IDIOMS1. get away with murder 逍遥法外；（做了错事而）安然无事• His charm and the fact that he is s likeable ften allws him t get away with murder. 他的魅力和受宠程度常让他无法无天为所欲为。2. murder will ut 杀人早晚要败露；天网恢恢，疏而不漏
murder3. vt. t kill sb deliberately and illegally 谋杀；凶杀• He denies murdering his wife’s lver. 他否认谋杀了妻子的情夫。• The murdered wman was well knwn in the area. 被杀害的女人在这个地区很有名气。
IDIOMSI culd murder a... 我非常想吃（或喝）• I culd murder a beer. 我很想来杯啤酒。• I culd murder sme chips. 我真想敞开肚子吃薯片。
mercy1. n. a kind r frgiving attitude twards sb that yu have the pwer t harm r right t punish 仁慈；宽恕• t ask/beg/plead fr mercy 请求/乞求/祈求宽恕• They shwed n mercy t their hstages. 他们对人质丝毫不讲仁慈。• Gd have mercy n us. 上帝怜悯我们吧。• The trps are n a mercy missin (= a jurney t help peple) in the war zne. 部队出发救助战区民众。 2. n. an event r a situatin t be grateful fr, usually because it stps sth unpleasant 幸运；恩惠• It’s a mercy she wasn’t seriusly hurt. 幸运的是她伤势不重。
IDIOMS1. at the mercy f 任……处置；对……无能为力；任由……摆布• I’m nt ging t put myself at the mercy f the bank. 我不想任由银行摆布。• We were at the mercy f the weather. 我们受制于天气。2. leave sb/sth t the mercy/mercies f sb/sth 听任某人可能受到虐待（而无能为力）3. thrw yurself n sb’s mercy 指望某人能善待（或宽恕）你
pssessin1. n. the state f having r wning sth 具有；拥有• The manuscript is just ne f the treasures in their pssessin. 这部手稿只是他们的珍藏之一。• The gang was caught in pssessin f stlen gds. 这伙人被逮住，人赃俱获。• The pssessin f a passprt is essential fr freign travel. 出国旅行必须持有护照。• On her father’s death, she came int pssessin f (= received) a vast frtune. 她父亲死后，她继承了一大笔财产。
pssessin2. n. [ C, usually pl. ] smething that yu wn r have with yu at a particular time 个人财产；私人物品• persnal pssessins 私人物品• The ring is ne f her mst treasured pssessins. 这只戒指是她最珍贵的财产之一。3. n. the state f having cntrl f the ball 控球状态• t win/get/lse pssessin f the ball 赢得/得到/失去对球的控制4. n. the state f having illegal drugs r weapns with yu at a particular time 持有违禁物；私藏毒品（或武器）• She was charged with pssessin. 她被控持有违禁物品。
1 Lgging new species will imprve ur understanding f life n the earth.译文：记录新物种将会增进我们对地球生命的认识。分析：此句中的lg用作动词，意为“（正式地）记载、记录（在纸上或计算机里）”。例如： They lg everyne and everything that cmes in and ut f here. 他们把在这里出入的人和发生的事都记入日志。 此外，lg还可用作名词，意为“（某时期事件的）正式记录；（航海或飞行等）日志”。例如： The family made an fficial cmplaint t a ship’s fficer, which was recrded in the lg. 这家人向一位高级船员提出过正式投诉，此事记入了航海日志。
2 Plastic pllutin is als bad, killing many birds and fish, and has even been fund in ur tap water.译文：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。分析：该句插入语部分用非谓语动词短语，补充说明塑料污染导致的严重后果。and后面的句子为被动语态的现在完成时，塑料污染直到现在仍然是棘手的问题。“tap water”意为“自来水”。