高中英语人教版 (2019)选择性必修 第四册Unit 3 Sea Exploration一等奖复习课件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一等奖复习课件ppt，共50页。PPT课件主要包含了素养导航，晨读晚诵，Ⅰ知识体系图解 ，重点词汇 ，重点短语，重点句式，答案B　 ，答案D　 ，答案C　 ，重点词汇等内容，欢迎下载使用。
Green Sea TurtlesGreen sea turtles are the wrld’s largest species f hard-shelled sea turtle.While mst f them weigh abut 136 t 181 kilgrams,sme can be as heavy as 204 kilgrams.These turtles are fund nesting alng the castline① f mre than 80 cuntries,with the largest nesting ppulatins fund in Csta Rica and Australia.
Green sea turtles spend mst f their lives underwater,where they can rest fr up t five hurs at a time befre cming up fr air.Green sea turtles are als knwn t sunbathe② n land. Unlike mst ther sea turtles,adult green sea turtles eat a primarily③ plant-based diet cnsisting f seaweed and sea grass.Scientists believe these green fds give the sea turtle’s fat its green clur.The shell f the green sea turtle is usually a shade f brwn r live.Similar t ther sea turtles,green sea turtles migrate④ lng distances between their feeding grunds and their nesting sites,with recrded distances f lnger than 2,600 kilmetres.
Female green sea turtles leave the water in rder t lay eggs n the beach and will chse the same nesting spt as where they were brn.A female will dig ut a nest and lay abut 115 eggs.Then she’ll cver the eggs with sand and return t the sea.After abut tw mnths,the babies will hatch⑤ frm their eggs.The first few years f a green sea turtle’s life are spent flating at sea,where they feed n planktn(浮游生物).As they grw lder,the turtles mve t waters alng the cast where they find sea grass t eat.Adult green sea turtles face many threats,primarily frm humans,including injuries frm bats,being caught in fishing nets and pllutin.Newly hatched sea turtles are als at risk f being hunted by animals such as birds,crabs,and raccns as they mve frm their nests ut t the sea.
词海拾贝①castline n.海岸线②sunbathe vt.晒日光浴③primarily adv.主要地④migrate vt.迁徙⑤hatch vt.孵化
典句欣赏Green sea turtles spend mst f their lives underwater,where they can rest fr up t five hurs at a time befre cming up fr air.译文:绿海龟的一生大部分都在水下度过,在那里它们可以一次休息五个小时,然后再上来呼吸空气。分析:本句是一个复合句。Green sea turtles spend...为主句,where they can rest fr up...是定语从句,befre cming up fr air是介词短语作时间状语。
探究思辨1.What d sea turtles and green sea turtles have in cmmn?2.What d yu think is the main threat t green sea turtles?答案1.They bth migrate lng distances between their feeding grunds and their nesting humans.
Sectin A　Reading and Thinking
1.merchant n.　　 　　　　adj.　　　　 　 2.fleet n. 　　　　　　　 3.behld vt.　　　　　　　 4.ryal adj.　 　　　　　　 5.spice n. 　　　　　　　 6.maritime adj.　　 　　　　　 
商人;批发商　 海上货运的　舰队;机群;车队　看;看见　皇家的;王室的;高贵的(调味)香料　 海的;海运的;海事的　
7.　　　　　 n.故事;叙述 8.　　　　　 vt.扩展;使伸长;延长 9.　　　　　 vt.商定;达成(协议)　vi.谈判;磋商;协商 10.　　　　　 n.等级;水平;联合会;联赛 11.　　　　　 vi.& vt.(使)撤回;撤离 12.　　　　　 n.航道;海峡;频道 13.　　　　　 n.纽带;关系　vt.& vi.增强信任关系;使牢固结合 
taleextend　negtiate　league　withdrawchannel　bnd
1.　　　　　 起航;开航 2.　 　　　　 独领风骚 3.　　　 　　 退出;撤回 4.　　　　　 在手头;可供使用 5.search fr　　　　　　　　 6.becme knwn as　　　　　　　　 7.develp relatins with　　　　　　　　 8.under the cmmand f　　　　　　　　 9.fr the benefit f　　　　　　　　 
set sail　in a league f ne’s wnwithdraw frm　in hand　
寻找;搜寻　作为……而著名　 与……发展关系　 在……的指挥下为了……的利益
Over the centuries,further trading allwed mre explratin f the regins t the west f China,as recrded in Du Huan’s Recrd f My Travels in the eighth century.
Ⅱ.阅读导学A.阅读P26-27课文内容,匹配段落大意。1.Part 1(Para.1)　　A.Zheng He’s vyage t the 2(Para.2) B.The Belt and Rad 3(Para.3) C.Hw the Silk Rad came int 4 (Paras.4-5) D.China’s participatin in sme imprtant 5 (Para.6) E.China will reach ut acrss the sea far int the 6 (Para.7) F.Mankind’s greatest achievements result frm trade and curisity.答案1.F　2.C　3.A　4.B　5.D　6.E
B.根据P26-27课文内容,选择正确答案。1.What inspired Eurpean explrers t search fr sea rutes frm west t east?A.Trade and curisity.　 B.The tales f Marc tales f Clumbus.D.Merchants and explrers.
2.What did the trade deals between merchants frm different cuntries result in?A.Further explratin f the ’s greatest f the ancient Silk understanding f each ther’s He and his fleets sailed as far as 　　　. A.the Indian OceanB.the Suth China SeaC.the east cast f AfricaD.the muth f the Red Sea
4.Why is there an urgent need t study the Arctic?A.T prmte freign lk fr mre natural strengthen the bnds between knw mre abut climate change and its effects.
1.Hwever,merchants and explrers frm the East set sail frm east t west many years befre Clumbus first did.(P26)然而,在哥伦布第一次起航的很多年前,东方的商人和探险家们就从东向西航行了。【词汇精讲】set sail起航;开航A thusand bats set sail n a lng stretch f the river.百里江面,千帆竞发。
We set sail fr France at high tide.我们在涨潮时起航去法国。The white sails billw with the breezes they catch.一张张白帆随着微风舞动。I shall get myself a little bat and sail it arund the wrld.我要给自己买一条小船,驾着它环游世界。
2.A trading rute acrss the sea was als extended alng the casts f the Indian Ocean,centred arund Ceyln (nw Sri Lanka).(P26)一条横跨海洋的贸易路线也沿着印度洋海岸延伸,以锡兰(现在的斯里兰卡)为中心。【词汇精讲】extend vt.扩展;使伸长;延长We are making plans t extend the parking area.我们在制定扩大停车场的计划。Our cmpany plans t extend its peratins int Africa.公司打算将业务扩展到非洲。
【词汇拓展】He has applied fr an extensin t his visa.他已申请延长签证。We’d like t extend a warm welcme t ur freign friends.我们热烈欢迎外国朋友。
3.Here,merchants frm China and many ther places met t negtiate trade deals,which als led t mre awareness f each ther’s cultures.(P26)在这里,来自中国和许多其他地方的商人聚集在一起协商贸易协定,这也使人们更加了解彼此的文化。【词汇精讲】negtiate vt.商定;达成(协议)　vi.谈判;磋商;协商We have been negtiating fr mre pay.我们一直在协商加薪。There were reprts that three cmpanies were negtiating t market this kind f drug.据报道,有三家公司在洽谈这种药的市场推广。
【词汇拓展】They are happy t negtiate with us in this way.他们很高兴和我们用这种方式来协商。The rent is a matter fr negtiatin between the landlrd and the tenant.租金可以由房东和租户协商确定。
4.These fleets were a sight t behld and were in a league f their wn at that time.(P26)这些船队在当时蔚为壮观,独领风骚。【词汇精讲】league n.等级;水平;联合会;联赛When it cmes t cking,I’m nt in her league.提到烹饪,我的水平远比不上她。Thus the first wrkers’ league came int being.第一个工人联盟就这样产生了。Britain has drpped frm secnd t third place in the league.英国在联赛中的排名从第二位降到了第三位。
【词汇拓展】As a singer,he is in a league f his wn.作为歌唱家,他独领风骚。A huse like that is ut f ur league.那样的房子不是我们能买得起的。
5.Althugh China withdrew frm further expeditins after 1433,these land and sea rutes remained active channels between ther cultures fr centuries.(P26)尽管中国在1433年以后退出了进一步的探险活动,但这些海陆航线几个世纪以来在其他文化之间一直保持活跃。【词汇精讲】withdraw vi. & vt.(使)撤回;撤离The teacher reached int his pcket and withdrew a sheet f ntepaper.老师把手伸进口袋,掏出一张便签。He and the thers withdrew t their rented rms.他和其他人回到了他们租住的房间。
【词汇拓展】I need t make a withdrawal frm my checking accunt.我要从我的支票账户里提款。My father decided t withdraw sme mney frm the bank.我爸爸决定从银行取些钱。
6.The aim f this initiative is t encurage cperatin and trade acrss the histric Silk Rad areas,and strengthen the bnds between China and the rest f the wrld.(P27)这一倡议的目的是鼓励在历史悠久的丝绸之路地区开展合作和贸易,加强中国与世界其他地区的联系。【词汇精讲】bnd n.纽带;关系　vt.& vi.增强信任关系;使牢固结合A bnd f friendship had been frmed between them.他们之间形成了一条友谊的纽带。The agreement strengthened the bnds between the tw cuntries.协议加强了两国间的联系。What had bnded them instantly and s cmpletely was their similar backgrund. 是相似的生活背景使他们很快变得亲密无间。
【词汇拓展】They have always had a special bnd with their neighburs.他们一直以来都和邻居有一种特殊的情谊。It’s actually the best time f the year t bnd with cmmunities.实际上,这是一年中和团队建立联系的最佳时机。
7.Hundreds f years n,and with the latest technlgy in hand,the need t trade and the desire t enhance relatinships will drive China t reach ut acrss the sea far int the future.(P27)数百年过去了,随着最新技术的使用,贸易需求和加强关系的愿望将驱使中国在遥远的未来跨越海洋。【词汇精讲】in hand在手头;可供使用The business in hand was appraching sme kind f climax.手头的生意似乎快到紧要关头了。The Olympic rganisers say that matters are well in hand.奥运会的组织方说各项事务都在掌控之中。
【词汇拓展】Industrial prgress shuld g hand in hand with the develpment f agriculture.工业的进步应与农业的发展齐头并进。When they met with difficulties,their neighburs gave them a hand.当他们遇到困难时,邻居们伸出了援手。
Over the centuries,further trading allwed mre explratin f the regins t the west f China,as recrded in Du Huan’s Recrd f My Travels in the eighth century.(P26)几个世纪以来,贸易的进一步发展使得中国西部地区得到了更多的开发,这一点在8世纪杜环的《经行记》中有所记载。【句式剖析】本句是一个复合句。主句是further trading allwed...。as recrded in...是非限制性定语从句的省略形式,句子补全为:as it was recrded in...。As yu can imagine,we all enjyed the party.你可以想象到,我们在那次聚会上都玩得很开心。
【句式拓展】(1)as用于引导限制性定语从句时,主要与such、as、the same连用,其意为“像……的”“凡是……的”“……一类的人(物)”。He is nt such a man as wuld leave his wrk half dne.他并不是一个做事半途而废的人。Yu must shw her the same respect as yu shw me.你必须对她表现出与对我同样的敬重。
(2)as用于引导非限制性定语从句时,根据情况可位于主句之前或之后,有时也可插在主句中间,其意为“这件事”“这一点”。The mn travels rund the earth nce every mnth,as is knwn t everybdy.众所周知,月球每月绕地球转一周。As is ften the case,a smart building is the crystallizatin f cllective wisdm and skills.通常情况就是这样,一座完美的建筑是集体智慧和技巧的结晶。
(3)as引导非限制性定语从句常见的有:as we all knw 众所周知as I can remember正如我所记得的as ften happens正如经常发生的那样as we expect正如我们预料的那样as was expected 正如预料的那样as can be seen 看得出来as may be imagined正如可以想象的那样as has been said abve如上所述as we all can see正如我们都能看到的那样as is ften the case像常规那样
Ⅰ.课文语法填空It is well-knwn that mankind’s greatest achievements have ften resulted frm trade and 1.　　　　　　(curius) and peple f early civilisatins had a strng desire 2.　　　　　　(cmplete) the great map f the wrld. 
In ancient times,Chinese merchants shipped silk t India,the Middle East,and Rme,alng 3.　　　　　　 became knwn as the Silk Rad.Trade between merchants frm China and ther places resulted in better 4. 　　　　　　(understand) f each ther’s cultures.In the Ming Dynasty,seven large fleets 5.　　　　　　(lead) by Zheng He set sail frm the Suth China Sea 6. 　　　　　　 the Indian Ocean t the muth f the Red Sea,and then t the east cast f Africa fr trade and explratin. 
understanding　
T develp the histric Silk Rad areas fr the benefit f future trade and 7.　　　　　　 (culture) exchange,China has launched the Belt and Rad Initiative,8. 　　　　　　 aim is t encurage cperatin and trade acrss the histric Silk Rad areas,and strengthen 9. 　　　　　　 bnds between China and the rest f the wrld.China has als teamed up with ther 10.　　　　　 (cuntry) t study the Arctic in rder t understand climate change and its effects.