人教版 (2019)选择性必修 第四册Unit 3 Sea Exploration教学ppt课件

这是一份人教版 (2019)选择性必修 第四册Unit 3 Sea Exploration教学ppt课件，共60页。PPT课件主要包含了课前自主预习，Ⅰ猜词意，课文语篇研读，课堂新知讲练，◇词汇拓讲，用法详解，◇句式解读，随堂知能小练等内容，欢迎下载使用。

A．与此同时；(比较两方面)对比之下B．商定；达成(协议)；谈判；磋商；协商C．名录；电话号码簿；(计算机文件或程序的)目录D．把……载入正式记录；记录；正式记录；日志；原木E．海的；海产的；海生的
1．I set the lg n the grund and shaved ff the bark.(　　)2．This ptin lets yu search yur current directry fr files by date，cntents，and dcument summary.(　　)3．The dctr will see yu again next week.Meanwhile，yu must rest as much as pssible.(　　)【答案】1．D　2．C　3．A
4．Seals and whales are marine animals.(　　)5．We are ready fr discussins with any legal parties，but we’ll never negtiate with criminals.(　　)【答案】4．E　5．B
Ⅱ.猜单词拼写1．migrate v．迁徙；移居；迁移 →____________n．迁移；移居；迁徙(参考：create→creatin)2．murder vt.谋杀；凶杀；毁坏n.谋杀；凶杀→_________ n．谋杀犯；杀人凶手(参考：teach→teacher)【答案】1．migratin　2．murderer
3．mercy n．仁慈；宽恕→____________ adj.宽大的；仁慈的→____________ adj.无情的；残忍的4．pssess v．有；拥有→ ____________ n．拥有；控制；个人财产(参考：impress→impressin)【答案】3．merciful；merciless　4．pssessin
Ⅲ.预备写作素材1．Recently ur class _______________(进行了一次关于海洋探索的讨论).2．Opinins ____________________(在这个话题上有分歧).3．Hwever，every cin___________________(有两面性).【答案】1．had a discussin abut sea explratin2．were divided n the tpic　3．has tw sides
4．Sme students supprt the pinin.Other students________ ____________________(反对这个观点)% f the students __________________(支持这一观点).6．Hwever，___________________________(27%的学生) were against the idea.【答案】4．ppse the pinin　5．supprted the view6．27% f the students
7．I think the secnd view is __________________________ (完全错误的).8．As far as I’m cncerned/Persnally，I’m ______________ (赞成第二种观点).【答案】7．cmpletely wrng8．in favur f the secnd view
Ⅰ.阅读课文，判断信息正误Text 1(　　)1．Lts f il is spilled int the sea frm undergrund at sea bttm.(　　)2．Oil can be fund in ur tap water because f pllutin.【答案】1－2　FF
(　　)3．Mining in the Arctic may result in glbal warming.(　　)4．Sme cuntries are still hunting whales fr their meat.(　　)5．The sea is hme t animals as well as human beings.【答案】3－5　FFTTT
Text 2(　　)1．Scientific research ships can help prtect endangered whales.(　　)2．It is necessary t d mre research int glbal warming.(　　)3．Learning mre abut the sea will help us prtect resurces.【答案】1－3　FFT
(　　)4．With the grwing ppulatin，we call fr new resurces fr future develpment.(　　)5．The authr is in favur f sea explratin.【答案】4－5　TT
Ⅱ.阅读课文，选择正确选项(　　)1．The authr f Text 1 believes that sea explratin results in ________．A．varius prblems t the earthB．peple’s better understanding f the seaC．mre natural energies fr humansD．gd living cnditins fr humans【答案】A
(　　)2．What can we infer frm Paragraph 3 f Text 1?A．The earth is getting much htter than befre.B．What we did has damaged wildlife in the sea.C．Glbal warming has caused bad effects t the Arctic.D．Humans have killed t much wildlife.【答案】C
(　　)3．What is the authr’s attitude twards sea explratin in Text 1?A．Supprtive.B．Oppsed.C．Uncertain.D．Optimistic.【答案】B
(　　)4．The authr f Text 2 hlds the view that _______．A．peple are cncerned t much abut sea explratinB．humans must have a gd understanding f the earthC．sea explratin can help get rid f fd shrtage fr usD．it is essential fr us t carry ut sea explratin【答案】D
(　　)5．In Text 2，the authr believes that with the grwing f ppulatin，________.A．new resurces are in great need fr ur future develpmentB．mre il will be explited frm undergrund in the futureC．mre ptins will be applied t keep the balance f natureD．we will be able t predict earthquakes mre precisely【答案】A
Ⅲ.课文语法填空The first authr thinks that sea explratin means 1.________ (explit) the sea.He hlds the belief 2．________ mre explratin n the sea has resulted in water and plastic pllutin n the sea，3．________(kill) birds and fish in the sea.【答案】1．expliting　2．that　3．killing
Mining n the sea，especially in the Arctic regins，will melt the ice in that area，4．________ will make temperatures n the earth grw higher.Overfishing is 5．________ serius prblem we face tday.Many cuntries are still hunting whales and dlphins fr their meat，thugh it 6．________(ban) in 1982．【答案】4．which　5．a　6．was banned
Hwever，the secnd authr thinks 7．________ is imprtant fr us humans t carry ut sea explratin because we have t get t knw 8．________ is happening t ur earth s as t take prper measures.Besides，we can better manage the resurces in the sea 9．________ we learn better abut the sea.In the end，we human beings need mre new resurces fr future 10．________(develp). All thse make it necessary fr us t make further explratin int the sea.【答案】7．it　8．what　9．if　10．develpment
1．meanwhile adv.与此同时；(比较两方面)对比之下(P30)Meanwhile，we als nted their lcatin，s we can track their mvements and plt their migratin path.【翻译】同时，我们还记录了它们的位置，这样我们就可以跟踪它们的运动，绘制它们的迁徙路线。
(1)meanwhile通常放在句首，并且有逗号同后面的句子分开。(2)meanwhile不能作连词用，所以不能引导时间状语从句。(3)meanwhile也可用作插入语，放在句子中间。这时，其前后都要用逗号与句子分开
Meanwhile，my debts were munting up.同时，我的债务在不断增加。
[针对练习]完成句子(1)Brush the eggplant with il，add salt and pepper，and bake till sft.________，heat the remaining il in a heavy pan.给茄子刷好油，加盐和胡椒粉，烤到软。同时，加热厚底锅中剩余的油。(2)Yu，________，will be skulking in the safety f the car.与此同时，你会安全地藏在汽车里。【答案】(1)Meanwhile　(2)meanwhile
2．explit vt.开发；利用；剥削(P32)When peple talk f explring the sea mre，they usually mean expliting it.【翻译】当人们谈到探索海洋时，他们通常指的是开发它。
(1)explit作及物动词时，还可表示“剥削；榨取；运用；利用；发挥；开发；开采；开拓”。(2)explitatin n．开发，开采；利用；广告推销；剥削(3)explitative adj.剥削的；利用的；开发资源的
He is accused f expliting child labur.他被指控剥削童工。We are trying t explit the il under the sea.我们正努力在海底开采石油。
[针对练习]完成句子(1)And humans tend t ________________________．而且，人类倾向于挖掘自己的能力。(2)Many cuntries __________________ under the sea.许多国家在海底开采石油。【答案】(1)explit their pwer (2)explit il
(3)We need t fully ____________________________．我们要充分利用我们的资源。(4)I even began t ____________________ in subtle ways.我甚至开始巧妙地利用他。(5)Yu must _________________________ t learn English.你必须利用一切空闲时间来学习英语。【答案】(3)explit ur resurces　(4)explit him(5)explit all yur spare time
3．murder vt.谋杀；凶杀；毁坏n.谋杀；凶杀(P32)Althugh this was banned in 1982，sme cuntries are still “murdering” these intelligent creatures withut mercy.【翻译】虽然这在1982年就被禁止了，但是一些国家仍然毫无怜悯地“谋杀”这些聪明的生物。
(1)murder的复数形式为murders。其作名词时，murder也可用来表示“困难的事，讨厌的事”。mass murder大屠杀；大规模的谋杀；集体屠杀attempted murder谋杀未遂blue murder可怕的谋杀；恐怖的喊声
murder mystery谋杀之谜bldy murder血腥谋杀(2)murderer n．凶手；谋杀犯(3)murderus adj.蓄意谋杀的；凶残的；暴怒的；严酷的；剧烈的
He was charged with murder.他被指控犯有谋杀罪。What is the punishment fr murder?谋杀应处以什么刑罚？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。
“I knw what yu were just abut t d！” she interrupted with a murderus stare.“我知道你只是想干什么！”她杀气腾腾地瞪着他，打断了他的话。
[针对练习]完成句子(1)The baby screamed ________________ when I put him in the bath.我刚把这个婴儿放到澡盆里，他就大哭起来。【答案】(1)blue murder
(2)Plice say they’re treating it as a case f _____________．警方说他们正将其作为谋杀未遂案件来处理。(3)Mre than a century has passed，but __________________ is still unreslved fr many.一个多世纪过去了，但是，在许多方面，这个谋杀之谜仍未解开。【答案】(2)attempted murder　(3)the murder mystery
4．mercy n．仁慈；宽恕；恩惠(P32)Althugh this was banned in 1982，sme cuntries are still “murdering” these intelligent creatures withut mercy.【翻译】虽然这在1982年就被禁止了，但是一些国家仍然毫无怜悯地“谋杀”这些聪明的生物。
at the mercy f... 任……处置；对……无能为力；任由……摆布have mercy n/upn sb./sth. 宽恕/怜悯某人/某物shw mercy t sb.宽恕/怜悯某人beg fr mercy乞求/请求宽恕with mercy仁慈地withut mercy 残忍地；毫不留情地
Farmers hunted us withut mercy.农民对我们残忍地捕猎。We had n chice and had t be at the mercy f the sea.我们别无选择，只好任由大海的摆布。
[针对练习]完成句子(1)They ___________________________ these wild animals.他们对野生动物没有丝毫仁慈。(2)It really was ______________________ that he’d gne s rapidly at the end.这真幸运，他最后走得那么快。【答案】(1)shwed/shw n mercy t　(2)a mercy
(3)They were treated _________________________________.他们受到仁慈的待遇。(4)Ordinary peple are ___________________________ life.普通人任由生活摆布。【答案】(3)with mercy　(4)at the mercy f
5．pssessin n．个人财产；拥有；控制(P32)The sea is hme t life，nt human beings’ pssessins.【翻译】海洋是生命的家园，而不是人类的财产。
(1)be in pssessin f(＝wn) 拥有；占有be in the pssessin f(＝belng t)(某物)为(某人)所有/控制
take/have pssessin f... 占有……fr pssessin f... 因为拥有……(2)pssess vt.拥有；持有(东西，资产)；具有(性情、特质)be pssessed f具有；拥有(某种品质、能力等)
The car had been his prudest pssessin.这辆汽车是他最引以为豪的财产。An ld lady is nw in pssessin f my ld huse.我的那所旧房子已归一位老太太所有。They put in claims fr pssessin f the estate.他们提出对那块土地所有权的要求。She was pssessed f exceptinal pwers f cncentratin.她有高超的专注能力。
[针对练习]单句语法填空(1)He annunced that there wuld be mre stringent cntrls n the ________(pssess) f weapns.(2)He was taken away by the plice ________ pssessin f ccaine.【答案】(1)pssessin　(2)fr
(3)Students ________ pssessin f gd time-management skills are mre likely t perfrm well in universities.(4)This cmpany is ________ the pssessin f Mr Li.(5)I’m afraid he isn’t pssessed ________ sense f humur.【答案】(3)in　(4)in　(5)f
1．(P32)There are prbably vast amunts f resurces under the sea and ice，nt just il and gas but als valuable minerals.【翻译】海洋和冰层下蕴藏着丰富的资源，不仅有石油和天然气，而且有珍贵的矿产资源。【句式剖析】本句中的“nt just”相当于“nt nly”。它同后面的“but als”一起构成“nt als”，表示“不仅……而且……”。
【归纳拓展】nt als...“不但……而且……”，连接两个并列的成分。(1)用于连接两个表示并列关系的成分，着重强调后者，其意为“不仅……而且……”；其中的als有时可以省略。
(2)若连接两个句子，且nt nly位于句首时，nt nly后面的句子要用部分倒装，将句子的助动词提前，放在主语的前面。(3)若连接的两个成分作主语，其谓语动词的单复数形式通常与靠近的主语保持一致。Nt nly yu but als he has t leave.不只是你，他也得离开。
Nt nly shuld we raise mney fr them but als we shuld help them rebuild their hme.我们不仅应该为他们筹集资金，而且我们应该帮助他们重建家园。
[针对练习]单句语法填空(1)Lily nt nly des well in her lessns，________ als plays the vilin well.(2)Nt nly ________ Mary help me take care f my child，but als des shpping fr me.(3)Nt nly yu but als Mike ________(be) t blame fr yur mistakes.【答案】(1)but　(2)des　(3)is
2．(P32)Hpefully，as technlgy imprves，we may have mre ptins fr managing this balance.【翻译】希望随着技术的进步，我们可以有更多的选择来实现这种平衡。【句式剖析】本句中的as是一个连词，表示伴随的情况，引导状语从句。
【归纳拓展】as用作连词，引导状语从句，应注意把握如下用法：(1)as在句中引导方式状语从句，意为“按照；如同”。(2)引导时间状语从句，意为“当……时候；一边……一边……；随着”。(3)引导原因状语从句，意为“因为；既然”。(4)引导让步状语从句，意为“尽管”。
Yu must d everything as I d.你必须照着我做的来做每一件事。They sang sngs as they were ding farm wrk.他们一边干农活，一边唱歌。As he is ill，he desn’t feel like eating.因为他病了，所以不想吃东西。As time went by，I gradually adapted myself t the schl life.随着时间的推移，我逐渐适应了学校生活。
【温馨提示】with也可以表示“随着”，但with是介词，后接名词或代词，构成with短语或with复合结构。(具体内容请参考本书P67)With the develpment f science and technlgy，ur life is getting better and better.随着科技的发展，我们的生活变得越来越好了。
[针对练习]单句语法填空(1)The children sang and danced ________ they walked all the way hme.(2)________ mnths and weeks went by，the little girl turned int a beautiful girl.(3)Child ________ he is，he can recite mre than ne hundred famus pems.【答案】(1)as　(2)As　(3)as
Ⅰ.单句语法填空1．DNS refers t the Dmain Name System，which is a __________(direct) that cnnects names t numerical(数字的) Internet addresses.2．Large quantities f il was spilled int the sea frm the tank，________(kill) lts f fish and birds in the sea.3．Wildlife is nw under careful prtectin，________ helps it t restre at great speed.【答案】1．directry　2．killing　3．which
4．This __________(murder) lunatic(杀人狂) culd kill them bth withut a secnd thught.5．This muntain is hme ________ all kinds f wild animals and birds.6．Their ________(migrate) t the Suth begin in Octber every year.【答案】4．murderus　5．t　6．migratin
7．___________(hpe)，mre green trees will return t this muntain in the near future.8．Mike has nt nly bught gifts fr his parents，________ als fr his clse friend.9．He described the picture as his mst cherished __________ (pssess).10．The wman is rich，but she shws n mercy ________ ther peple.【答案】7．Hpefully　8．but　9．pssessin　10．t
Ⅱ.短语填空at clse range，leap ut f，tell apart，take pictures f，with mercy，take actin，supprt ne’s pints，keep balance，hunt fr，be hme t1．That man is t cruel t treat ther peple _____________.2．As we knw，Sichuan，China ______________ pandas，a very precius animal.【答案】1．with mercy　2．is hme t
3．Nw it is illegal t ____________ wild animals in mst parts f China.4．Lily tld her friend t ________________ her in frnt f the ancient twer.5．We ught t take immediate actin t ____________ f nature.【答案】3．hunt fr　4．take pictures f5．keep balance 
6．The twin brthers lk very much alike，s few peple can ____________ the twins.7．Yu’ll have t find strng evidence t ____________ while yu are in the curt.8．Hearing the alarm，Li Lei ______________ his bed and hurried t schl withut breakfast.【答案】6．tell apart　7．supprt yur pints8．leaped ut f
9．Nw，in this park，yu can get int the car and watch the wild animals ____________．10．We are suppsed t __________________ t prtect ur envirnment.【答案】9．at clse range　10．take actin
Ⅲ.完成句子1．____________________________________ agriculture，mre and mre rivers have been plluted.随着农业的发展，越来越多的河流受到了污染。2．_____________________________，ur city has becme mre and mre beautiful.随着时间的推移，我们的城市变得越来越美丽了。【答案】1．With the develpment f　2．As time ges n
3．They did find smething，and Wilsn was arrested ______________________________ methamphetamine.店员们后来确实找到些东西，而威尔森也就因为私藏兴奋剂而被捕。4．Li Ming ________________ des well in his lessns，________________ plays the pian well.李明不仅学习搞得好，而且钢琴也弹得好。【答案】3．fr pssessin f　4．nt nly；but als