高中Unit 3 Sea Exploration完美版课件ppt

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Express yur pinins n sea explratin
Shuld the sea be explred?
Read the tw texts belw and find the arguments and evidence in them.
Read the Text 1 and match the main idea f each paragraphand
Para.1　 A.The bad effect f verfishing.Para.2 B.The damage caused by mining.Para.3 C.The imprtance f sea prtectin.Para.4 D.The cnnectin between explratin and pllutin.Para.5 E.The sea is hme t life,s we shuld prtect it
Lk at the tw charts belw and decide which ne supprts which text.
Text 1：Glbal trends in the state f wrld marine fish stcksText 2：Decline in il spills
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?
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.
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.
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.
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 much 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 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. 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 the 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.
Ⅰ 阅读理解 （根据课文内容选择正确答案）1. Why des the authr f Text 1 say n t sea explratin? A. Explring the sea mre means expliting it. B. It is n use and a waste f mney explring the sea. C. It has caused a lt f issues and will g n leading t mre. D. The Deepwater Hrizn spilled ver il int the sea in 2010. 2. Why is the Deepwater Hrizn mentined in Text 1? A. T shw expliting mre means plluting the sea mre. B. T explain what is the Deepwater Hrizn. C. T state the fact that it spilled ver 200 millin gallns f il int the sea in 2010. D. T shw plastic pllutin caused by sea explratin.
3. What’s the authr’s pinin in Text 2? A. Mining fr resurces is very damaging，especially in the Arctic. B. The sea is nt human beings’ pssessins and it is mre sensitive than we think. C. We mustn’t explre the ceans which cver mst f ur planet. D. Sea explratin is f great significance fr ur future. 4. Accrding t Text 2，we can learn that 　　　　. A. thrugh sea explratin，we can’t learn abut sme-thing that happens t the earth B. by keeping a recrd f new species，we will better understand the life n the earth C. we are trying t explre the sea just t get plenty f il and gas D. sea explratin is unlikely t cause envirnmental risks
Ⅱ 语法填空（根据课文内容和语法规则完成短文） 　　When it cmes 1 　　　　 sea explratin，different peple have different pinins. Sme peple think sea explratin has caused many prblems and 2 　　　 　 （cntinue） t cause mre. They are afraid that expliting mre means plluting mre，with plastic pllutin 3________ 　　　　 （kill） many birds and fish. Mining fr resurces is very damaging. Besides，verfishing is anther prblem. Whales and dlphins 4 　　　 　（hunt） fr their meat. 　　Others think 5 　　　　 necessary t d mre research n the sea. 6_______________ 　　 　　（understand） ur planet， we must explre the ceans 7 　　　　 cver mst f it. Understanding mre abut the sea will als help us manage its resurces 8 　　　　（well）. 9____________ （lg） new species will imprve ur understanding f life n the earth. 　　In my pinin，as technlgy imprves，we will have the 10 　　　　（able） t keep this balance between sea explratin and ecnmic needs.
will cntinue
T understand
Ⅲ 概要写作 　　阅读Text 1 和Text 2，根据其内容写一篇60 词左右的内容概要。
One pssible versin: Sme peple think sea explratin can lead t a large quantity f prblems while thers cnsider it necessary and significant t explit the sea.（要点 1） On the ne hand，mre pllutin caused by explring mre，expliting t much，and verfishing all risks damaging the envirnment.（要点 2） On the ther hand，having a better understanding f the sea cntributes t managing the resurces better withil，gas and precius minerals under the sea and ice. （要点 3） In cnclusin，we shuld try t keep the balance between sea explratin and ecnmic needs.（要点 4）
Language pints
教材原句p.32 Althugh this was banned in 1982，sme cuntries are still “murdering” these intelligent creatures withut mercy. 尽管这在1982 年被禁止， 一些国家仍然毫不留情地“谋杀”这些聪明的动物。
3 mercy n. ［U］仁慈；宽恕；［C］恩惠withut mercy 残忍地，毫不留情地shw mercy t sb. 宽恕/ 怜悯某人搭配have mercy n sb. 宽恕/ 怜悯某人ask/beg fr mercy 请求/ 乞求宽恕at the mercy f 任……处置；任由……摆布It’s a mercy（that）... 幸运的是……His jints ached，but the bss kept him at wrk withut mercy. 他的关节疼痛，但老板却毫不留情地让他继续干活。［词汇复现］ The judge shwed n mercy t the vilent man. = The judge had n mercy n the vilent man. 法官对那个暴力的人毫不留情。［词汇复现］ It is a mercy that the whle family survived the earthquake after peple’s jint effrts. 经过大家共同努力，这一家人在地震中全部存活下来，真是幸运。［词汇复现］
单句语法填空①There was a time when sme endangered animals were killed 　　　　　 mercy. ②［词汇复现］Facing threats f vilence，it’s n use asking 　　　　　 mercy. ③The wman was s flish that she was cmpletely 　　　　　 the mercy f him. 完成句子④After the bat’s mtr failed，they were 　　 　　　 　　　（任由……摆布） the wind and waves. ⑤The warm-hearted wman always 　　　　 　　 　 　　　（怜悯）the pr children. ⑥ 　　　　　 　　　（幸运的是）n ne was injured in the bmb explsin.
at the mercy f
shws mercy t/has mercy n
It’s a mercy（that）
教材原句p.32 The sea is hme t life，nt human beings’ pssessins. 海洋是生命的家园，不是人类的财产。
4 be hme t 是……的栖息地/ 家园；是……的产地/ 所在地This thick frest is hme t sme mammals，such as bears and muntain lins. 这片茂密的森林是一些哺乳动物的家园，比如熊和美洲狮。［词汇复现］ Sme places in suthern China are hme t bananas. 中国南方的一些地方是香蕉的产地。【归纳拓展】 at hme 在家里；在国内；舒适的，不拘束的feel at hme 感觉舒适自在make neself at hme 别拘束
单句语法填空①Tsinghua University is hme 　　　　　 a great number f utstanding figures. 完成句子②China and Russia 　　　　　　　　　　（是……的家园） the majrity f musk deer. ③Sit dwn and 　　　　　 　　　 　（别拘束）.
make yurself at hme
5 pssessin n. （1）（常用复数）个人财产He had sld all his pssessins and lived in the flur mill. 他变卖了所有财产，住在面粉厂里。［词汇复现］ （2）拥有；控制take pssessin f 拥有，占有（动词短语） 搭配in pssessin f 拥有，占有（介词短语） in the pssessin f/in ne’s pssessin 为……所拥有The venue is in the pssessin f Tm. 这个场地为汤姆所有。 = Tm is in pssessin f the venue. 汤姆拥有这个场地。［词汇复现］ 【词语积累】 pssess vt. 拥有；具有；支配，控制She has been dreaming f pssessing such a grand huse. 她一直梦想着拥有这么一个大房子。［词汇复现］ 【归纳拓展】 in cntrl f 控制　　　　　　　in charge f 负责in the cntrl f 在……的控制下　in the charge f 由……负责
单句语法填空 ①［词汇复现］The hrn is ne f her mst treasured 　　　　　（pssessin）. ②［词汇复现］The 　　　　　（pssess） f an enrmus capacity fr hard wrk is essential fr success. 完成句子③［词汇复现］He 　　　　　 　　　（占有） all the newly hatched chicks，which made his brther annyed. ④It is evident that he is 　　　　　 　　　　 （ 拥有） this department stre；that is，this department stre is 　　　　　 　　　（为……所拥有） him.
tk pssessin f
in pssessin f
in the pssessin f
教材原句p.32 We need t understand what is happening t ur planet s that we can take actin. 我们需要了解我们的星球正在发生什么，这样我们才能采取行动。
6 take actin 采取行动；采取措施take immediate actin 立即采取行动 take legal actin 采取法律手段 We must take actin t prevent wildlife frm appearing n the market. 我们必须采取行动阻止野生动物出现在市场上。【归纳拓展】 “采取措施”的其他表达 take measures take steps
完成句子①［词汇复现］The factry directr required us 　　　　　　　　　　 　（采取行动） t increase the prductin capacity f arrws. ②［词汇复现］ 　　　　　　　　　　 　　 　　 （必须采取措施） t encurage farmers t increase their prductin f the herb.
t take actin 　
Actin/Measures/Steps must be taken
教材原句p.32 There are prbably vast amunts f resurces under the sea and ice... 海底和冰层下可能蕴藏着大量的资源……
7 amunts f 许多，大量（接不可数名词） 搭配 large amunts f + 不可数名词+ 复数谓语动词 a large amunt f + 不可数名词+ 单数谓语动词If the factry expldes，it will cause peple t breathe amunts f dangerus gas. 如果这个工厂爆炸，会导致人们吸入大量危险气体。［词汇复现］ A large amunt f mney was spent n the rund-trip fare. 往返车费花了一大笔钱。［词汇复现］ 【归纳拓展】 “许多，大量”的其他表达： （1）只修饰可数名词复数的：many，a great/gd many，a great/large number f，quite a few （2）只修饰不可数名词的：much，a great/gd deal f （3）既可以修饰不可数名词又可以修饰可数名词复数的：a lt f， lts f，a quantity f，quantities f，plenty f
【误区警示】 以下短语接名词作主语时应注意谓语动词的单复数形式： a large quantity f + 不可数名词+ 单数谓语a large quantity f + 可数名词复数+ 复数谓语large quantities f + 不可数名词/ 可数名词复数 + 复数谓语many a/an + 可数名词单数+ 单数谓语a number f + 可数名词复数+ 复数谓语
单句语法填空①There 　　　　　（be）large amunts f infrmatin abut the authr’s birthplace. ②With mre frests being destryed，a large amunt f gd earth 　 　　　　（be） being washed away each year. ③A number f high buildings 　　　　　（arise）where there was nthing a year ag but ruins. ④［ 词汇复现］In fact，quite a few peple 　　　　　（feel） superir t thers arund them. ⑤［词汇复现］There 　　　　　（be） a great deal f time fr yu t study the prs and cns f the scheme. ⑥Every year，large quantities f water 　　　　　（waste），a large quantity f trees 　　　　　 （cut）dwn，and a large quantity f rubbish 　　　　　（thrw）away. ⑦［词汇复现］Finally he fit int the team，and nw many a prblem 　　　　　（fall） away already.
have arisen
has fallen
教材原句p.34 A $5 millin reward has been annunced fr infrmatin leading t the arrest f thse respnsible fr the murder. 已宣布悬赏500 万美元，以获取逮捕谋杀案主犯的情报。
8 arrest n. & vt. （1）n. 逮捕；拘留；中止 搭配place/put sb. under arrest 逮捕某人make several arrests 逮捕了几个人While fetching smething imprtant，she was placed/put under arrest. 她去取重要东西时被逮捕了。［词汇复现］ Tw randm arrests were made，but the men were later released. 有两人被随机逮捕，但后来他们都被释放了。［词汇复现］
（2）vt. 逮捕；拘留；阻止；吸引（注意） 搭配arrest sb. fr sth. 因某事逮捕某人arrest ne’s attentin 吸引某人的注意力I was stunned by the news that the plice arrested her fr drunk driving. 当我听到警察因她酒后驾车而逮捕她的消息时，我震惊了。［词汇复现］ The treatment has s far dne little t arrest the spread f the cancer. 到目前为止，这种疗法在阻止癌症扩散方面收效甚微。An unusual nise arrested his attentin. 一阵不寻常的嘈杂声引起了他的注意。
单句语法填空①［词汇复现］He was placed 　　　　 arrest because his business hadn’t been licensed. ②Several peple 　　　 　（arrest） and large quantities f herin were fund. ③The burglars have been arrested 　　　　stealing the jewellery. 完成句子④A wman and tw men 　　　　　　　　 　　（被捕）n the day after the explsin. ⑤This kind f medicine can 　　　　　　　 　　（有效阻止） the develpment f harmful bacteria. ⑥［词汇复现］The picture f the mther kangar with the baby kangar in the puch 　　　 　　　　　　　 　　　_____________________（引起我的注意）.
were arrested
were put/placed under arrest 或were arrested
effectively arrest
arrested my attentin
教材原句p.32 Hpefully，as technlgy imprves，we may have mre ptins fr managing this balance. 希望随着技术的进步，我们可以有更多的选择来管理这种平衡。
【句式分析】本句是复合句，as technlgy imprves是时间状语从句， as 意为“随着”。 as 引导时间状语从句As time ges by，the jb will let yu use all yur skills t the maximum. = With time ging by，the jb will let yu use all yur skills t 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。［词汇复现］ 【学法点拨】 随着时间的推移 as time ges by（as 引导时间状语从句） with time ging by（with 复合结构）
单句语法填空（1）As the ppulatin 　　　　 　（increase）， mre land is needed. = With the ppulatin 　　　　 　（increase）， mre land is needed. 完成句子（2）［词汇复现］ 　　　　　　 　　　　 　（随着时间的推移），the divisins between rich and pr are getting less deep.
As time ges by/With time ging by