人教版高中英语选择性必修第四册UNIT 3 SEA EXPLORATION Section Ⅰ课件

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人教版高中英语选择性必修第四册UNIT 3 SEA EXPLORATION Section Ⅰ课件

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(共79张PPT)
UNIT 3 SEA EXPLORATION
(单元主题语境:人与自然——海洋探索)
Section Ⅰ Reading and Thinking
Ⅰ.重点词汇
1. n.故事;叙述
2. n.商人;批发商 adj.海上货运的
3. n.舰队;机群;车队
4. vt.(beheld,beheld)看;看见
5. n.等级;水平;联合会;联赛
6. n.航道;海峡;频道
7. adj.海的;海运的;海事的
8. n.纽带;关系 vt.& vi.增强信任关系;使牢固结合
tale
merchant
fleet
behold
league
channel
maritime
bond
Ⅱ.拓展词汇
1. vt.扩展;使伸长;延长→extension n.扩大;延伸
2. vt.商定;达成(协议) vi.谈判;磋商;协商→negotiation n.谈判;协商
3. adj.皇家的;王室的;高贵的→royalty n.王室成员;版税
4. n.(调味)香料→spicy adj.加有香料的;辛辣的
5. vi.& vt.(使)撤回;撤离→withdrawal n.收回;撤回;(从银行账户中)取款→withdrawn adj.沉默寡言的;内向的
extend
negotiate
royal
spice
withdraw
形容词加后缀-ty构成名词,后缀-ty表示“……性质;……状态”。
royal→royalty safe→safety
loyal→loyalty certain→certainty
Ⅲ.短语互译
1.起航;开航
2.独领风骚
3.退出;撤回
4.在手头;可供使用
5.a sight to behold
6.search for
7.centre around
set sail
in a league of one's own
withdraw from
in hand
壮观的景象
寻找
以……为中心;集中于……
8.under the command of
9.in return for
10.for the benefit of
11.point of view
在……指挥下
作为对……的回报
为了……的利益
观点
Ⅳ.重点句式
1.句型:what引导宾语从句
教材原句:In ancient times,silk from China found its way overland to India,the Middle East,and Rome,along what became known as the Silk Road.
翻译:
在古代,中国的丝绸经由一条陆上通道运至印度、中东和罗马,这条路就是后来闻名遐迩的“丝绸之路”。
2.句型:There is an urgent need to do sth. 迫切需要做某事。
教材原句:From a scientific point of view,there is an urgent need to study the Arctic in order to understand climate change and its effects.
翻译:
从科学角度看,迫切需要研究北极,以了解气候变化及其影响。
3.句型:动词不定式作后置定语
教材原句:Hundreds of years on,and with the latest technology in hand,the need to trade and the desire to enhance relationships will drive China to reach out across the sea far into the future.
翻译:
数百年过去了,由于拥有了最新技术,在贸易的必要性和增进关系的愿望驱动下,中国将跨越海洋,迈向未来。
熟读精思 研读文本精华
Ⅰ.原文释译

REACHING OUT ACROSS THE SEA
Trade and curiosity have often formed the foundation of ①mankind's greatest achievements. To complete the great map of the world was a strong passion②for the people of early civilisations.Marco Polo's tales③inspired European explorers to search for sea routes from west to east.However,merchants④ and explorers from the East set sail⑤ from east to west many years before Columbus first did.
动词不定式短语作主语。
before引导时间状语从句。
In ancient times,silk from China found its way overland to India,the Middle East,and Rome,along what became known as the Silk Road.A trading route across the sea was also extended⑥ along the coasts of the Indian Ocean,centred around⑦ Ceylon(now Sri Lanka). Here,merchants from China and many other places met to negotiate⑧ trade deals,which also led to more awareness⑨ of each other's cultures.Over the centuries,further trading allowed more exploration of the regions to the west of China,as recorded in Du Huan's Record of My Travels in the eighth century.
复合句。句中what引导宾语从句。
复合句。句中to negotiate trade deals为动词不定式短语作目的状语;which引导非限制性定语从句。
Later,the Ming Dynasty further developed relations with these regions.Between 1405 and 1433,seven large fleets sailed west on voyages of trade and exploration.These fleets⑩ were a sight to behold and were in a league of their own at that time.Under the command of Zheng He,they set sail from the South China Sea across the Indian Ocean to the mouth of the Red Sea,and then to the east coast of Africa.African royal families sent gifts such as giraffes as gestures of friendship in return for gold,silk,and spices . Although China withdrew from further expeditions after 1433,these land and sea routes remained active channels between other cultures for centuries.
Although引导让步状语从句。
To reach out across the sea remains a strong desire today. The ancient sea routes travelled by Zheng He are being revisited with the 21st Century Maritime Silk Road,which is part of the Belt and Road Initiative.The aim of this initiative is to encourage cooperation and trade across the historic Silk Road areas,and strengthen the bonds between China and the rest of the world.Trading has grown greatly in recent years,and will continue to do so in years to come.China has invested billions in systems and services along these routes,which will help to greatly develop the whole area for the benefit of future trade and cultural exchange .
复合句。句中travelled by Zheng He 为过去分词短语作定语;which引导非限制性定语从句。
China has also joined its friends across the sea on other important projects.Although the ancient sea routes of Zheng He have been travelled many times,there are still many other places left to explore.In recent years,China has joined other nations on several expeditions to explore the Arctic.From a scientific point of view ,there is an urgent need to study the Arctic in order to understand climate change and its effects.
Hundreds of years on,and with the latest technology in hand ,the need to trade and the desire to enhance relationships will drive China to reach out across the sea far into the future.
简单句。句中with the latest technology in hand为with复合结构作原因状语;句中to trade和to enhance relationships为动词不定式(短语)作定语。
◆难词注解
①form the foundation of ...形成……的基础
②passion n.[C]酷爱,热衷的爱好(或活动等)
③tale n.故事;叙述
④merchant n.商人;批发商adj.海上货运的
⑤set sail 起航;开航
⑥extend vt.扩展;使伸长;延长
⑦centre around/on/round/upon ...以……为中心;集中于……
⑧negotiate vt.商定;达成(协议) vi.谈判;磋商;协商
⑨awareness n.知道;认识;意识;兴趣
⑩fleet n.舰队;机群;车队
behold vt.(beheld,beheld)看;看见
in a league of one's own独领风骚
under the command of sb./under sb.'s command在某人的指挥下
royal adj.皇家的;王室的;高贵的
as a gesture/gestures of ...作为……的表示
in return for ...作为对……的回报
spice n.(调味)香料
withdraw from退出;撤回
channel n.航道;海峡;频道
revisit vt.重提,再次讨论;再访;重游
maritime adj.海的;海运的;海事的
bond n.纽带;关系vt.& vi.增强信任关系;使牢固结合
the rest of 其余的,剩下的
for the benefit of ...为了……的利益
trade and cultural exchange贸易和文化交流
from a(n) ...point of view 就……而言,从……角度
urgent adj.紧急的;紧迫的;急切的
in hand 在手头;可供使用
enhance vt.提高;增强;增进
drive sb.to do sth.驱使某人做某事
跨海越洋
贸易和好奇心通常构成人类最伟大成就的基础。在早期文明中,人们对绘制世界大地图充满激情。马可·波罗的故事激励了欧洲探险家寻找自西向东的海上航线。然而,在哥伦布首次起航之前许多年,东方的商人和探险家就已经开始自东向西航行。
在古代,中国的丝绸经由一条陆上通道运至印度、中东和罗马,这条路就是后来闻名遐迩的“丝绸之路”。此外,还有一条横跨海洋的贸易路线以锡兰(今斯里兰卡)为中点沿印度洋海岸延伸。在这里,
来自中国和其他许多地方的商人汇聚在一起,洽谈贸易协议,这也增进了对彼此文化的认识。几个世纪间,随着贸易的发展,中国以西地区得到了更多的探索,正如8世纪时杜环在其所著《经行记》中记载的那样。
后来,明朝进一步发展了与这些地区的关系。1405年至1433年间,七支大型船队向西航行,开始贸易和探索之旅。这些船队在当时蔚为壮观,独领风骚。在郑和的指挥下,船队从南海起航,穿越印度洋,直抵红海口,然后前往非洲东海岸。非洲王室赠送长颈鹿等礼物以示友好,同时也是作为他们获得黄金、丝绸和香料的回赠。
尽管1433年后中国停止了进一步的探索,但几个世纪以来,这些陆上和海上路线仍是与其他文化之间互通有无的活跃通道。
今天,跨海越洋依旧是人们强烈的渴望。作为“一带一路”倡议的组成部分,“21世纪海上丝绸之路”让郑和航行过的古代航道再度受到关注。这项倡议旨在鼓励古丝绸之路共建地区间的合作与贸易,同时加强中国与世界其他国家之间的联系。近年来,贸易增长迅猛,未来几年也将持续增长。中国已经在这些共建地区的运输系统和服务上投入了数十亿美元,这将促进整个地区实现大发展,有利于未来的贸易和文化交流。
中国还与海洋彼岸的友邦一起参与了其他重要项目。尽管郑和的古代海上路线已经航行很多次了,但仍有其他许多地方有待探索。近年来,中国与其他国家一道开展了多次北极考察。从科学角度看,迫切需要研究北极,以了解气候变化及其影响。
数百年过去了,由于拥有了最新技术,在贸易的必要性和增进关系的愿望驱动下,中国将跨海越洋,迈向未来。
Ⅱ.文本理解
主旨大意
The theme of the text is .
the achievements and future of human exploration of the sea
文章架构
细节探究
1.Why did European explorers look for sea routes from west to east (  )
A.They intended to develop their own business.
B.They were curious about the outside world.
C.They were ambitious to make a great achievement.
D.They were inspired by Marco Polo's tales.
2.What made the exploration of the regions to the west of China become more (  )
A.People's curiosity.
B.Chinese silk.
C.Further development of trade.
D.Awareness of each other's cultures.
3.What's the purpose of the Belt and Road Initiative (  )
A.To satisfy people's curiosity and desire.
B.To invest billions in systems and services.
C.To revisit the ancient sea routes travelled by Zheng He.
D.To promote trade and cooperation and enhance relationships.
4.What's the main idea of Paragraph 5 (  )
A.There is an urgent need to study the Arctic.
B.China has cooperated with other countries on other significant projects.
C.China has joined other nations on several expeditions to explore the Arctic.
D.The ancient sea routes of Zheng He still have many other places left to explore.
5.What is the advantage of reaching out across the sea now? (  )
A.The need to trade.
B.The desire to enhance relationships.
C.We have advanced technology.
D.We have done it for hundreds of years.
答案:1~5 DCDBC
课文语法填空
For the people of early civilisations,it was a great passion 1. (complete) a map of the world.In the past,western explorers 2. (inspire) by Marco Polo's story about China wanted to find sea routes to China.Merchants from China also traveled to western countries by sea routes,who made their sea voyage much
3. (early) than Columbus'.
to complete
inspired
earlier
Silk from China found 4. (it) way overland to India,the Middle East,and Rome,along what became known as the Silk Road.Ancient Chinese 5. (merchant) also discovered a route by sea into the Indian Ocean.On their meetings,business people from 6. (difference) countries negotiated their trade deals,7.
resulted in a better 8. (understand) of each other's cultures.Later on,Zheng He,from the Ming Dynasty,set sail between 1405 and 1433,from 9. South China Sea across the Indian Ocean and to the east coast of Africa.
its
merchants
different
which
understanding
the
Now,China has joined other countries on many other important projects for the purpose of doing trade and 10. (enhance) bonds with these countries.
enhancing
Ⅲ.教材熟词生义/一词多义
1.allow
①Over the centuries,further trading allowed more exploration of the regions to the west of China ...
②How could you allow him to do something like that
③Please allow 28 days for delivery.
使可能
允许;准许
留出
2.command
①Under the command of Zheng He,they set sail from the South China Sea across the Indian Ocean to the mouth of the Red Sea ...
②The tanker failed to respond to a command to stop.
③His command of English was excellent.
指挥
命令
(尤指对语言的)掌握,运用能力
3.invest
①China has invested billions in systems and services along these routes ...
②I would rather invest time in work than in exercise.
投资
投入
Ⅳ.教材续写积累
1.人物描写之探索精神——充满热情与渴望
①To complete the great map of the world was a strong passion for the people of early civilisations.
②Hundreds of years on,and with the latest technology in hand,the need to trade and the desire to enhance relationships will drive China to reach out across the sea far into the future.
[仿写]完成句子
①日复一日,凯尔开始想画更多的画,表现出更大的热情。
Day by day,Kyle started to feel like drawing more, .
②看着周围美丽的建筑,感受到浓厚的学习氛围,伊芙突然觉得自己年轻多了,一股读书的欲望涌上心头。
Looking around at the beautiful buildings and sensing a strong learning atmosphere,Eve suddenly felt much younger, flooding over her.
showing greater passion for it
a desire to read
2.人物描写之探索精神——迫切需求与动力
①From a scientific point of view,there is an urgent need to study the Arctic in order to understand climate change and its effects.
②...the need to trade and the desire to enhance relationships will drive China to reach out across the sea far into the future.
[仿写]完成句子
①我意识到花园急需打理,就像兰迪以前做的那样。
I realized that take care of the garden just like what Randy had done before.
②一回到家,好奇心就驱使我打开了这个包装精美的礼物。
The moment I was back home,curiosity unwrap the delicately-packed present.
there is an urgent need to
drove me to
互动探究 精研核心知识
1 set sail 起航;开航
However,merchants and explorers from the East set sail from east to west many years before Columbus first did.
然而,在哥伦布首次启航之前许多年,东方的商人和探险家就已经开始自东向西航行。
[要点突破]
set up 建立;安装;设置
set out 开始;着手;安排;陈述;出发
set out for 动身前往
set off 动身;出发;引发;使(炸弹等)爆炸
set about 开始;着手
set aside 留出(钱或时间);把……放到一边;搁置
[写作佳句]
The system is set up but it needs some fine-tuning.
该系统已装配好,但需要一些细小调整。
set out意为“开始做,展开任务”时,后接动词不定式;set about意为“着手做;开始做”时,后接名词或动名词形式。
[学以致用]
单句填空/完成句子
①I even set about (surf) the Internet to find ways to help the poor family.
②We gathered at the school gate and set out the park on foot at 8:30 in the morning.
③风太大,船无法准时出航。
The ship was unable to on account of the gale.
surfing
for
set sail on schedule
④今天我要谈谈我们的英语俱乐部。我们的英语俱乐部是两个月前成立的。
Today I'll talk about our English club.Our English club two months ago.
was set up
2 extend vt.扩展;使伸长;延长
A trading route across the sea was also extended along the coasts of the Indian Ocean,centred around Ceylon (now Sri Lanka).
此外,还有一条横跨海洋的贸易路线以锡兰(今斯里兰卡)为中点沿印度洋海岸延伸。
[要点突破]
①extend from ...to ...从……延伸到……
②extend sth.to sb. 给某人提供某物
extend a helping hand to sb.向某人伸出援助之手
extend a very warm welcome to sb.向某人表示热烈的欢迎
extend sb.an invitation向某人发出邀请
③extension n.延伸;扩大
④extensive adj.广阔的;广泛的;大量的
⑤extensively adv.广大地;广泛地
⑥extended adj.延长了的;扩展了的
[写作佳句]
I would like to extend my thanks to all our teachers,parents and family,who have done so much for us over the years.
我要向所有的老师、父母和家人表示感谢,这些年来他们为我们付出了很多。
[学以致用]
单句填空/完成句子
①It can provide you with more opportunities to make friends
(extend).
extensively
②By learning ancient Chinese poems,you can have an
(extend) knowledge of history and culture in ancient China.
③The (extend) of the highway brought great convenience to the local residents.
④听说你要来和我们一起学习,我谨代表全班向你表示热烈的欢迎。
Hearing that you are coming to study with us,I'd like to on behalf of the whole class.
extensive
extension
extend a very warm welcome to you
3 negotiate vt.商定;达成(协议) vi.谈判;磋商;协商
Here,merchants from China and many other places met to negotiate trade deals,which also led to more awareness of each other's cultures.
在这里,来自中国和其他许多地方的商人汇聚在一起,洽谈贸易协议,这也增进了对彼此文化的认识。
[要点突破]
①negotiate with sb.about/for sth.=negotiate sth.with sb.和某人商议某事
negotiate a deal/contract/settlement达成交易/商定合同/协商解决措施
②negotiation n.协商;谈判
under negotiation 在商谈中
in negotiation with 和……协商/谈判
[写作佳句]
If a schoolmate's sandwich or cookie appeared to be more appetizing than your own,you tried to negotiate a trade.
如果一个同学的三明治或饼干看起来比你自己的更开胃,你就会试图协商一笔交易。
[学以致用]
单句填空/完成句子
①We've decided to negotiate you our cooperation.
②They agreed to try to settle their dispute by (negotiate).
③关于何时举行运动会,还在商讨之中。
It is still about when to hold the sports meeting.
with
about/for
negotiation
under negotiation
4 withdraw vi.& vt.(withdrew,withdrawn)(使)撤回;撤离
Although China withdrew from further expeditions after 1433,these land and sea routes remained active channels between other cultures for centuries.
尽管1433年后中国停止了进一步的探索,但几个世纪以来,这些陆上和海上路线仍是与其他文化之间互通有无的活跃通道。
[要点突破]
①withdraw from 退出;撤回
withdraw money from the bank 从银行取款
withdraw one's eyes from 把视线从……移开(不再看……)
withdraw a remark 收回发言
②withdrawal n.收回;撤离;(从银行账户中)取款
③withdrawn adj.沉默寡言的;内向的
[写作佳句]
I was about to break the piggy bank and withdraw money when my mind came back to the bike I wanted to buy,and I hesitated.
我正准备打破储蓄罐取钱,这时我又想到了我想要买的自行车,我犹豫了。
withdraw本身已经包含了“……回”之意,故不能再和back连用,有类似用法的动词还有return、repay等。
[学以致用]
单句填空/完成句子
①The (withdraw) of army has provided new opportunity for peace talk.
②Tony was (withdraw) and didn't show much interest in school and sometimes slept in class.
③萨莉忍着痛一瘸一拐地走下舞台后,安娜羞愧地说出了真相,选择退出比赛。
Anna told the truth in shame and chose to
after Sally limped painfully off the stage.
withdrawal
withdrawn
withdraw from the competition
5 bond n.纽带;关系 vt.& vi.增强信任关系;使牢固结合
The aim of this initiative is to encourage cooperation and trade across the historic Silk Road areas,and strengthen the bonds between China and the rest of the world.
这项倡议旨在鼓励古丝绸之路共建地区间的合作与贸易,同时加强中国与世界其他国家之间的联系。
[要点突破]
①a bond of friendship 友谊的纽带
the bond between ...and ...……与……之间的联系
②bond with ...与……建立联系
bond ...to ...将……粘贴在……上
[写作佳句]
Teamwork between players contributes to cooperation and interaction,which leads to close bond and friendship.
队员的协作有助于合作和互动,从而增强联系、促进友谊。
[学以致用]
单句填空/完成句子
①Bonding family members and friends is thought necessary to one's overall fitness.
②The glue cannot be used to bond wood metal.
③我坚信我有能力为加强中美学生之间的联系作出微薄的贡献。
I do believe I'm capable of making a modest contribution to Chinese and American students.
with
to
strengthening the bonds between
6 in hand在手头;可供使用
Hundreds of years on,and with the latest technology in hand,the need to trade and the desire to enhance relationships will drive China to reach out across the sea far into the future.
数百年过去了,由于拥有了最新技术,在贸易的必要性和增进关系的愿望驱动下,中国将跨海越洋,迈向未来。
[要点突破]
at hand 在手边,在近处;即将到来
by hand 用手工;(信件)亲手交付
hand in hand 手拉手;密切相关
out of hand 失去控制;不假思索(拒绝等)
[写作佳句]
With the gold medal in hand,she said loudly,“I owe my success to Linda.She taught me better dance movements and techniques.”
她拿着金牌,大声说:“我的成功归功于琳达。她教会了我更好的舞蹈动作和技巧。”
[学以致用]
单句填空/完成句子
①It is better to write letters to our relatives and friends hand rather than send e-mails.
②让我们携手克服焦虑,做一些力所能及的事情。我们相信明天又是新的一天。
Let's work to overcome anxiety and do some bits.We have faith in the fact that tomorrow is another day.
by
hand in hand
③梅里出院那天,丽莎出现了,手里拿着一束花。
On the day Merry checked out of the hospital,Lisa turned up, .(with复合结构)
with a bunch of flowers in hand
1 what引导宾语从句
In ancient times,silk from China found its way overland to India,the Middle East,and Rome,along what became known as the Silk Road.
在古代,中国的丝绸经由一条陆上通道运至印度、中东和罗马,这条路就是后来闻名遐迩的“丝绸之路”。
[情境探究]
①They've done what they could to help her.
他们已经尽力帮助她了。
②After what seemed like hours he came out with a bitter smile.
似乎过了几个小时他才苦笑着出来。
③Our hometown has changed a lot,and now it is quite different from what it used to be a few years ago.
我们的家乡变化很大,它现在与几年前的样子完全不同。
[要点突破]
what引导的宾语从句放在介词或动词之后,从句使用陈述语序。what在从句中作主语、宾语或表语,表示“……的……”。
①表示“……的东西或事情”,相当于“the thing that ...”“all that ...”“everything that ...”。
②表示“……的时间”,相当于“the time that ...”。
③表示“……的人”,相当于“the person that ...”。
④表示“……的地方”,相当于“the place that ...”。
⑤表示“……的数量”,相当于“the amount/number that ...”。
[学以致用]
单句填空/完成句子
①Since you are interested in acting,you'd better choose you like.
②It is the modern city set up in was a wasteland ten years ago that attracts a lot of excellent people throughout China.
③We always think there are no great moments in our lives,but great moments are just in others may think small and unimportant ones!
④在我人生的这个阶段,吸收尽可能多的知识是我必须做的。
Absorbing as much knowledge as possible at this stage in my life is
.
what
what
what
what I must do
2 动词不定式作后置定语
Hundreds of years on,and with the latest technology in hand,the need to trade and the desire to enhance relationships will drive China to reach out across the sea far into the future.
数百年过去了,由于拥有了最新技术,在贸易的必要性和增进关系的愿望驱动下,中国将跨海越洋,迈向未来。
[情境探究]
①I would appreciate it if I could have the opportunity to get the job.
如果我有机会得到这份工作,我将不胜感激。
②(2023·新课标Ⅰ卷)Cycling is the most economical,sustainable and fun way to explore the city,with its beautiful canals,parks,squares and countless lights.
骑自行车是探索这座城市最经济、最可持续、最有趣的方式,这里有美丽的运河、公园、广场和无数的装饰灯。
③Finally,I was the first person to get to the finishing line.
最后,我是第一个到达终点线的人。
[要点突破]
动词不定式作后置定语的几种情况:
①抽象名词+to do sth.
②形容词的最高级+n.+to do sth.
③the first+n.+to do sth.第一个做某事的……
④the only+n.+to do sth.唯一一个做某事的……
后常接不定式作定语的抽象名词有chance、wish、way、right、courage、need、promise、time、opportunity、ability等。作定语的不定式如果是不及物动词,后面应有相应的介词。
[学以致用]
单句填空/完成句子
①This is the second space lecture (popularize) space science and spread knowledge about manned spaceflight.
②It's the best way (get) rid of your used clothes,score clothes from your friends,and have a party all at the same time.
③I feel it is a good opportunity (improve) my ability to write in English.
④事实上,教育是战胜这一疾病蔓延的唯一手段。
In fact,education is the only weapon .
to popularize
to get
to improve
to fight the spread of the disease
单句填空/完成句子
①(2025·新课标Ⅰ卷)The column will serve as a catalyst for closer
(bond) between students.
②BMF是一种室内园艺系统。它适合家庭安装。
(2024·新课标Ⅱ卷)BMF is an indoor garden system.It can be .
bonds
set up for a family
③在那里,你会发现它们的制作方式不同——更多的馅,更少的汤,包子皮是用手压的,而不是擀出来的。
(2023·新课标Ⅰ卷)There you will find them prepared differently—more dumpling and less soup, and the wrappers are rather than rolled.
④该计划将把保护范围扩大到许多此前未受保护的地区。
(经典高考题)The plan will to a significant number of areas that were previously unprotected.
pressed by hand
extend protection

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