把握单元素养目标
主题意识 本单元在“人与自然”的主题语境下，围绕“海洋探索”这一主题展开，通过介绍人类海洋探索的历史与意义、海上丝绸之路、我国海洋科考的发展、海洋传说故事、海洋生物多样性、人类活动对海洋的影响、海洋环境保护、世界海洋日等内容，引导学生多角度、全方位地思考人类与海洋的关系，理解海洋探索对国家乃至全人类发展的重要性，树立人类命运共同体意识，认识到尊重自然、保护生态是可持续发展的必由之路。
语法项目 能够理解动词不定式在语篇中作不同句子成分的用法，并在不同语境中进行综合运用。
语言输入 听 能够听懂并理解观鲸活动的基本内容，能准确获取主旨大意；注意顺序词的运用，进而获取关键信息。
读 阅读介绍中国海洋探索历史的文章，了解中国古代和现代的海洋探索进程，理解说明文的结构特点和说明方法；阅读关于海洋开发利弊的正反论述，理解议论文的结构特征。
看 通过浏览相关图文，获取关键信息；结合文字和图片，理解海洋探索对于国家发展的重要性。
语言输出 写 能够有理有据地写出关于海洋开发利弊的议论文。
说 能够在叙述探访海洋生物的计划时，利用表达顺序的话语标记，使表达条理清晰、层次分明。
Section Ⅰ “Reading and Thinking”的课文习读环节
文意整体把握
Ⅰ.理清文脉结构
Ⅱ.把握主旨大意
1．What is the theme of the text about？( )
A．Looking ahead to the exploration of the sea.
B．Describing trade and curiosity's influence on the sea.
C．Analysing the causes of human exploration of the sea.
D．Introducing the achievements and future of human exploration of the sea.
2．Match the main idea with each part.
Part 1(Para.1) A．The sea exploration in ancient China.
Part 2(Paras.2～3) B．The sea exploration in today's China.
Part 3(Paras.4～5) C．The reasons to explore other places.
Part 4(Para.6) D．The exploration in the future.
文意深度理解
(一)阅读理解
1．Why did the early explorers search for sea routes？( )
A．To find the sea routes from east to west.
B．To discover the mysteries of the sea.
C．Being driven by curiosity and the need to trade.
D．Being inspired by Marco Polo's tales.
2．What's the influence of the Silk Road？( )
A．To discover the mysteries of the sea.
B．To promote trade deals and learn each other's cultures.
C．To find the sea routes from west to east.
D．To study and understand climate change and its effects.
3．How can we describe Zheng He's voyages at that time？( )
A．Astonishing. B．Disappointing.
C．Frightening. D．Encouraging.
4．What is the function of the first sentence in the 4th paragraph ( )
A．To present the background. B．To introduce the topic.
C．To provide an example. D．To make a transition.
[Tip]
判断段落首句功能
解答询问段落首句功能的阅读理解题时，需留意首句与段落主旨的关系，看其是否直接点明主题或观点；观察首句在逻辑方面的作用，如引出下文论述、提出问题引发思考、进行对比或转折等；考虑首句与上文段落的衔接，判断是否有承上启下、呼应或补充上文的作用。 第四段中首句起到衔接过渡作用，承上启下。5.What is the reason for China exploring the Arctic in the scientific aspect？( )
A．To meet an urgent need for resources.
B．To do research on its climate change and its effects.
C．To communicate with other countries.
D．To explore new trading sea routes.
(二)阅读表达
1．What will drive China to reach out across the sea far into the future
2．What contributed to the cultural communication with each other
3．What should we do to make contributions to enhancing integration with other countries
内化读文技法
理清说明顺序
本文是说明文，介绍了中国从古至今的海洋探索历程。文章脉络清晰，逐层推进。作者用一条时间线贯穿全文，从早期的航海探索到明代郑和下西洋，再到现代的“一带一路”和中国海洋科考，最后表达了对未来的展望。阅读时注意从各段首句中标记出关键词汇，梳理出时间线索，更好地理解文章的结构。
(一)赏用词之妙
1．Trade and curiosity have often formed the foundation of mankind's greatest achievements.
赏析：作者使用curiosity与trade搭配，共同构成人类取得伟大成就的基石，为下文人类探索海洋指明原因。此处curiosity为名词，意为“求知欲；好奇心”。
2．These fleets were a sight to behold and were in a league of their own at that time.
赏析：作者使用sight一词形象地描绘了郑和带领的七支大型船队浩浩荡荡出行的壮观景象，同时也突出了人类通过海洋传播文化的历史事实。a sight to behold意为“壮观的景象”。此处sight为名词，意为“景象；情景；视野；视觉”，其同义词有view, scenery等。
仿写训练
①(单句语法填空)The moment I was back home, __________ (curious)drove me to unwrapped the delicately packed present.
②(词汇升级)The sunrise at the seaside was well worth seeing.______________
(二)赏句式之高
1．Here, merchants from China and many other places met to negotiate trade deals, which also led to more awareness of each other's cultures.
赏析：此句是主从复合句。句中to negotiate trade deals是动词不定式短语作目的状语；which引导非限制性定语从句。 该句描述了中国和其他许多地方的商人汇聚一起的盛况。
2．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.
赏析：此句是主从复合句。句中travelled by Zheng He是过去分词短语作后置定语，修饰The ancient sea routes；which引导非限制性定语从句，修饰先行词the 21st Century Maritime Silk Road。该句介绍了“21世纪海上丝绸之路”的发展。
仿写训练/完成句子
①____________________________________， scientists have made great efforts, ______________________________________.
为了探索海洋的奥秘，科学家们付出了巨大的努力，这带来了许多发现。
②The damaged ships, ________________________________， tell stories of past voyages, ______________________________.
在海底发现的受损船只讲述着过去航行的故事，这些故事让研究人员着迷。
(三)赏衔接之顺
Trade and curiosity have often formed the foundation of mankind's greatest achievements.To complete the great map of the world was a strong passion for the people of early civilisations.Marco Polo's tales inspired European explorers to search for sea routes from west to east.However, merchants and explorers from the East set sail from east to west many years before Columbus first did.
赏析：本段表明贸易往来和对世界的好奇心驱使着人类探索未知的世界，列举了马可·波罗、哥伦布等知名的西方航海家。接着用“However”话锋一转，提到了更早之前，东方就有向西方航行的探险活动，由此引出中国海洋探索历史。
仿写训练/完成句子
The next day, I went to Jenny's house.Before the speech, ________________________________________________________________________.
第二天，我去了珍妮家。然而，就在演讲之前，我改变了主意。
在浩瀚无垠的海洋深处，隐藏着无数未知的秘密与奇迹。古老的沉船诉说着往昔的探险故事，奇异的生物展现着生命的顽强魅力，珍贵的资源等待着被发掘。让我们一同潜入这神秘的深海世界，开启一场惊心动魄的探索之旅吧。
DIVING DEEP
Lying under waters across the globe are an estimated three million shipwrecks.All of them represent attempts over the centuries to explore Earth's furthest corners.Among these is the Esmeralda, the earliest wreck from the age of the European exploration of Asia.Today, some 500 years after the Esmeralda set sail, there is little — if any — land on our planet left unexplored.We have more detailed maps of the Moon, and even of Venus and Mars, than we do of Earth's own sea bed.
Given our limited knowledge, exploration of the oceans continues to lead to discoveries in various scientific fields.As with the discovery of the Esmeralda, many archaeological finds are made in shallow waters near the coast.These may sometimes include whole cities buried beneath the waves.One such find is the ancient Roman city of Neápolis, discovered off the coast of Tunisia.Believed to have been buried underwater by a tsunami in the fourth century AD, the ruins of Neápolis are almost 2,000 years old.The remaining streets and buildings offer a window into a fascinating period in our history.However, we are only beginning to overcome the challenges of pressure, darkness and extreme cold at vast depths.Fragments of the past lying deep beneath the oceans are still waiting to be discovered.
Amazing biological discoveries are also being made.The dark zones of the oceans may contain up to 90 per cent of the planet's fish.In these waters, more than 200 metres deep, ， are extraordinary creatures that appear as if they are straight .Imagine bone white coral 6,000 metres below the ocean's surface, growing at the rate of only one or two millimetres per year.Some of these could be 4,000 years old.Swimming through these black depths is the barreleye, a strange fish with eyes that can look upwards through its transparent forehead.In the very deepest ocean trenches that are more than 8,000 metres below the surface, the pressure is equivalent to 50 aeroplanes stacked one on top of another.Yet there is still life to be found, even around the deep sea volcanic openings.These discoveries all help us understand the capacity for life on our planet, even in the most extreme circumstances.
Furthermore, the oceans are a valuable source of natural resources, some of which are completely new to us.Most notable of these is China's discovery of an ice like substance, known as “fire ice”， under the South China Sea.In addition, China's underwater vessels, such as the Jiaolong and Shenhai Yongshi, have been exploring waters at depths of thousands of metres.The Jiaolong even holds the record for the deepest dive by a manned submarine, at 7,062 metres, giving China its place alongside the world's top ocean explorers.The research conducted by these vessels is giving scientists a greater understanding of how the sea bed was formed, as well as helping identify areas for deep sea drilling, taking deep sea exploration into a whole new era.
Being a tough environment of complete darkness, enormous pressure and intense cold, the ocean depths have long been beyond the reach of human exploration.However, through closer international scientific, economic and cultural cooperation, we are all becoming part of a global mission to open up our planet's final frontier.Humankind is entering a new age of oceanic discovery, and the world beneath the waves may one day be almost as familiar to us as the land we walk upon today.
滴水穿石
1．由文积词汇
shipwreck n． 失事的船；沉船
Venus n. 金星
fragment n. 碎片；片段
intense adj. 强烈的；紧张的
frontier n. 边界；前沿
beneath prep. 在……下面
2．据文悟句式
句① it is no surprise that ...意为“不足为奇的是……”，其中it作形式主语，that引导主语从句。
句② where引导定语从句，修饰先行词these waters。
句③ as if引导方式状语从句，意为“好像”。
Section Ⅰ
NO.1 精阅读
文意整体把握
Ⅰ.①cultural ②exchange ③influence ④efforts ⑤reach out
Ⅱ.1.D 2.Parts 1～4 CABD
文意深度理解
(一)1～5 CBADB
(二)1.The need to trade and the desire to enhance relationships.
2．Merchants from China and many other places met to negotiate trade deals.
3．To contribute to better integration with other countries, we can learn foreign languages, study different cultures.Also, we can promote international trade through shipping.Moreover, sharing our own culture is important.
NO.2 美表达
(一)①curiosity ②quite a sight to behold
(二)①To explore the mysteries of the ocean; which has led to many discoveries
②found at the bottom of the ocean; which fascinate researchers
(三)however, I changed my mind
7 / 7(共68张PPT)
把握单元 素养目标
主题 意识 本单元在“人与自然”的主题语境下，围绕“海洋探索”这一主题展开，通过介绍人类海洋探索的历史与意义、海上丝绸之路、我国海洋科考的发展、海洋传说故事、海洋生物多样性、人类活动对海洋的影响、海洋环境保护、世界海洋日等内容，引导学生多角度、全方位地思考人类与海洋的关系，理解海洋探索对国家乃至全人类发展的重要性，树立人类命运共同体意识，认识到尊重自然、保护生态是可持续发展的必由之路。
语法 项目 能够理解动词不定式在语篇中作不同句子成分的用法，并在不同语境中进行综合运用。
续表
语言 输入 听 能够听懂并理解观鲸活动的基本内容，能准确获取主旨大意；注意顺序词的运用，进而获取关键信息。
读 阅读介绍中国海洋探索历史的文章，了解中国古代和现代的海洋探索进程，理解说明文的结构特点和说明方法；阅读关于海洋开发利弊的正反论述，理解议论文的结构特征
看 通过浏览相关图文，获取关键信息；结合文字和图片，理解海洋探索对于国家发展的重要性。
续表
语言 输出 写 能够有理有据地写出关于海洋开发利弊的议论文。
说 能够在叙述探访海洋生物的计划时，利用表达顺序的话语标记，使表达条理清晰、层次分明。
Section Ⅰ
“Reading and Thinking”的课文习读环节
NO 1
精阅读/提升阅读“理解力”
NO 2
美表达/强化写作“基本功”
NO 3
慧人生/以文化人“增才情”
NO 4
课时跟踪检测
目 录
文意整体把握
Ⅰ.理清文脉结构
No.1 精阅读/提升阅读“理解力”
Cultural
exchange
influence
efforts
reach out
√
Ⅱ.把握主旨大意
1．What is the theme of the text about
A．Looking ahead to the exploration of the sea.
B．Describing trade and curiosity's influence on the sea.
C．Analysing the causes of human exploration of the sea.
D．Introducing the achievements and future of human exploration of the sea.
2．Match the main idea with each part.
Part 1(Para.1) A．The sea exploration in ancient China.
Part 2(Paras.2～3) B．The sea exploration in today's China.
Part 3(Paras.4～5) C．The reasons to explore other places.
Part 4(Para.6) D．The exploration in the future.
答案：Parts 1～4 CABD
文意深度理解
(一)阅读理解
1．Why did the early explorers search for sea routes
A．To find the sea routes from east to west.
B．To discover the mysteries of the sea.
C．Being driven by curiosity and the need to trade.
D．Being inspired by Marco Polo's tales.
√
2．What's the influence of the Silk Road
A．To discover the mysteries of the sea.
B．To promote trade deals and learn each other's cultures.
C．To find the sea routes from west to east.
D．To study and understand climate change and its effects.
√
3．How can we describe Zheng He's voyages at that time
A．Astonishing. B．Disappointing.
C．Frightening. D．Encouraging.
4．What is the function of the first sentence in the 4th paragraph
A．To present the background. B．To introduce the topic.
C．To provide an example. D．To make a transition.
√
√
[Tip]
判断段落首句功能
解答询问段落首句功能的阅读理解题时，需留意首句与段落主旨的关系，看其是否直接点明主题或观点；观察首句在逻辑方面的作用，如引出下文论述、提出问题引发思考、进行对比或转折等；考虑首句与上文段落的衔接，判断是否有承上启下、呼应或补充上文的作用。 第四段中首句起到衔接过渡作用，承上启下。
5．What is the reason for China exploring the Arctic in the scientific aspect
A．To meet an urgent need for resources.
B．To do research on its climate change and its effects.
C．To communicate with other countries.
D．To explore new trading sea routes.
√
(二)阅读表达
1．What will drive China to reach out across the sea far into the future
The need to trade and the desire to enhance relationships.
2．What contributed to the cultural communication with each other
Merchants from China and many other places met to negotiate trade deals.
3．What should we do to make contributions to enhancing integration with other countries
To contribute to better integration with other countries, we can learn foreign languages, study different cultures.Also, we can promote international trade through shipping.Moreover, sharing our own culture is important.
内化读文技法
理清说明顺序
本文是说明文，介绍了中国从古至今的海洋探索历程。文章脉络清晰，逐层推进。作者用一条时间线贯穿全文，从早期的航海探索到明代郑和下西洋，再到现代的“一带一路”和中国海洋科考，最后表达了对未来的展望。阅读时注意从各段首句中标记出关键词汇，梳理出时间线索，更好地理解文章的结构。
(一)赏用词之妙
1．Trade and curiosity have often formed the foundation of mankind's greatest achievements.
赏析：作者使用curiosity与trade搭配，共同构成人类取得伟大成就的基石，为下文人类探索海洋指明原因。此处curiosity为名词，意为“求知欲；好奇心”。
No.2 美表达/强化写作“基本功”
2．These fleets were a sight to behold and were in a league of their own at that time.
赏析：作者使用sight一词形象地描绘了郑和带领的七支大型船队浩浩荡荡出行的壮观景象，同时也突出了人类通过海洋传播文化的历史事实。a sight to behold意为“壮观的景象”。此处sight为名词，意为“景象；情景；视野；视觉”，其同义词有view, scenery等。
仿写训练
①(单句语法填空)The moment I was back home, ________ (curious)drove me to unwrapped the delicately-packed present.
②(词汇升级)The sunrise at the seaside was well worth seeing. ____ ______________
curiosity
quite
a sight to behold
(二)赏句式之高
1．Here, merchants from China and many other places met to negotiate trade deals, which also led to more awareness of each other's cultures.
赏析：此句是主从复合句。句中to negotiate trade deals是动词不定式短语作目的状语；which引导非限制性定语从句。 该句描述了中国和其他许多地方的商人汇聚一起的盛况。
2．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.
赏析：此句是主从复合句。句中travelled by Zheng He是过去分词短语作后置定语，修饰The ancient sea routes；which引导非限制性定语从句，修饰先行词the 21st Century Maritime Silk Road。该句介绍了“21世纪海上丝绸之路”的发展。
仿写训练/完成句子
①________________________________, scientists have made great efforts, _____________________________.
为了探索海洋的奥秘，科学家们付出了巨大的努力，这带来了许多发现。
To explore the mysteries of the ocean
which has led to many discoveries
②The damaged ships,____________________________, tell stories of past voyages, _________________________
在海底发现的受损船只讲述着过去航行的故事，这些故事让研究人员着迷。
found at the bottom of the ocean
which fascinate researchers.
(三)赏衔接之顺
Trade and curiosity have often formed the foundation of mankind's greatest achievements.To complete the great map of the world was a strong passion for the people of early civilisations.Marco Polo's tales inspired European explorers to search for sea routes from west to east.However, merchants and explorers from the East set sail from east to west many years before Columbus first did.
赏析：本段表明贸易往来和对世界的好奇心驱使着人类探索未知的世界，列举了马可·波罗、哥伦布等知名的西方航海家。接着用“However”话锋一转，提到了更早之前，东方就有向西方航行的探险活动，由此引出中国海洋探索历史。
仿写训练/完成句子
The next day, I went to Jenny's house.Before the speech, ________ _________________.
第二天，我去了珍妮家。然而，就在演讲之前，我改变了主意。
however,
I changed my mind
在浩瀚无垠的海洋深处，隐藏着无数未知的秘密与奇迹。古老的沉船诉说着往昔的探险故事，奇异的生物展现着生命的顽强魅力，珍贵的资源等待着被发掘。让我们一同潜入这神秘的深海世界，开启一场惊心动魄的探索之旅吧。
No.3 慧人生/以文化人“增才情”
DIVING DEEP
Lying under waters across the globe are an estimated three million shipwrecks.All of them represent attempts over the centuries to explore Earth's furthest corners.Among these is the Esmeralda, the earliest wreck from the age of the European exploration of Asia.Today, some 500 years after the Esmeralda set sail, there is little — if any — land on our planet left unexplored.We have more detailed maps of the Moon, and even of Venus and Mars, than we do of Earth's own sea bed.
Believed to have been buried underwater by a tsunami in the fourth century AD, the ruins of Neápolis are almost 2,000 years old.The remaining streets and buildings offer a window into a fascinating period in our history.However, we are only beginning to overcome the challenges of pressure, darkness and extreme cold at vast depths.Fragments of the past lying deep beneath the oceans are still waiting to be discovered.
Some of these could be 4,000 years old.Swimming through these black depths is the barreleye, a strange fish with eyes that can look upwards through its transparent forehead.In the very deepest ocean trenches that are more than 8,000 metres below the surface, the pressure is equivalent to 50 aeroplanes stacked one on top of another.Yet there is still life to be found, even around the deep-sea volcanic openings.These discoveries all help us understand the capacity for life on our planet, even in the most extreme circumstances.
Furthermore, the oceans are a valuable source of natural resources, some of which are completely new to us.Most notable of these is China's discovery of an ice-like substance, known as “fire ice”， under the South China Sea.In addition, China's underwater vessels, such as the Jiaolong and Shenhai Yongshi, have been exploring waters at depths of thousands of metres.
The Jiaolong even holds the record for the deepest dive by a manned submarine, at 7,062 metres, giving China its place alongside the world's top ocean explorers.The research conducted by these vessels is giving scientists a greater understanding of how the sea bed was formed, as well as helping identify areas for deep-sea drilling, taking deep-sea exploration into a whole new era.
Being a tough environment of complete darkness, enormous pressure and intense cold, the ocean depths have long been beyond the reach of human exploration.However, through closer international scientific, economic and cultural cooperation, we are all becoming part of a global mission to open up our planet's final frontier.Humankind is entering a new age of oceanic discovery, and the world beneath the waves may one day be almost as familiar to us as the land we walk upon today.
滴水穿石
1．由文积词汇
shipwreck n． 失事的船；沉船
Venus n. 金星
fragment n. 碎片；片段
intense adj. 强烈的；紧张的
frontier n. 边界；前沿
beneath prep. 在……下面
2．据文悟句式
句① it is no surprise that ...意为“不足为奇的是……”，其中it作形式主语，that引导主语从句。
句② where引导定语从句，修饰先行词these waters。
句③ as if引导方式状语从句，意为“好像”。
Ⅰ.阅读理解
A
Underwater explorers have discovered an ancient shipwreck in the ruins of a long-lost sunken Egyptian city Heracleion, off the coast of Alexandria in Egypt.Researchers have proved the ship to be over 2,000 years old among the ruins.
No.4 课时跟踪检测
Although Heracleion was once an important economic center, it was destroyed by the forces of nature, sinking rapidly in the water.The remains of the city's houses, temples, and markets have lain ten meters deep in the Abu Qir Bay, east of present-day Alexandria.As a result，underwater explorers regularly make exciting discoveries there.Among them, statues and stone tablets with words made it possible to figure out the city's name: Heracleion.
Researchers explained that the ship was 25 meters long.The discovery of the shipwreck was fascinating because ships from that period in history were very seldom.The underwater research showed that the ship was struck by several big stones from the nearby temple, making the ship at the bottom of the sea.Dr Mustafa Waziri, Secretary-General of the Higher Archaeology Council, said the ship was in the canal which flowed along the side of the Temple of Amun.An earthquake struck the city, making the temple destroyed and the ship sink.
While the shipwreck discovery was exciting, underwater explorers discovered the remains of a Greek cemetery (墓地) dating back to the 4th century BC during the underwater exploration.
Researchers explained that the discovery shows the Greek traders lived in the city.They built their own temples near the temple of Amun, and the remains of both have been found together and in good condition in the sunken city some 7 miles off the coast of Egypt.It is worth noting that the city of Heracleion had been the largest port-city in Egypt across the Nile Delta, before the city of Alexandria was founded in 331 BC.Several earthquakes destroyed it.
语篇解读：本文是一篇记叙文。文章通过讲述Heracleion废墟中发现了一艘古代沉船和可追溯到公元前4世纪的希腊墓地遗迹的故事来探索当时一些不为人知的历史真相。
1．Why did the city Heracleion disappear
A．It was destroyed by the Greek traders.
B．It was hit and covered by a big flood.
C．It was unimportant and was deserted.
D．It was ruined and sank into the sea.
解析：细节理解题。根据第二段“Although Heracleion ...in the water.”可知，Heracleion被摧毁了，并沉入海底。
√
2．What caused the ship to sink into the sea
A．Its own length. B．A terrible earthquake.
C．Carrying too many stones. D．The building of a temple.
解析：细节理解题。根据第三段“Dr Mustafa Waziri ...the ship sink.”可知，船是因为地震而导致沉没的。
√
3．What can be inferred from the discovery of a Greek cemetery
A．The Greek cemetery was destroyed.
B．Greek traders built the temple of Amun.
C．Heracleion was probably a trade center.
D．Greek has a longer history than Egypt.
√
解析：推理判断题。根据最后一段“Researchers explained that the discovery shows the Greek traders lived in the city.”可知，这里有商人居住；根据“It is worth noting ...in 331 BC.”可知，它在亚历山大城建立之前还是埃及最大的港口城市，港口城市一般交通便利，故推知Heracleion可能是一个贸易中心。
4．In which section of a newspaper can we find the text
A．Environment. B．History.
C．Sport. D．Education.
解析：推理判断题。通读本文可知，文章讲述的是水下探险家在埃及城市Heracleion废墟中发现了一艘古代沉船和可追溯到公元前4世纪的希腊墓地遗迹，这些发现背后都承载着一定的历史真相，故我们可能会在报纸的“History”(历史)版块中读到这篇文章。
√
B
Scientists have discovered the world's largest known field of sea grass.They did it using videos shot by some unusual helpers：tiger sharks.The work should help protect the sea grass，and also shows off a powerful way to explore the ocean.
Sea grasses are flowering plants that normally grow in shallow waters near coasts.They grow in thick fields, known as meadows (草地)．Sea grass meadows help clean the ocean's water, and provide food and shelter for many sea creatures.Sea grasses store huge amounts of carbon — the harmful pollution that's making global warming worse.Damaging these sea grass meadows can release this pollution again, so it's important to protect them.
From above, the meadows can be hard to spot, either because the water is too deep or not clear enough.And the ocean is so huge that it's simply not possible to study it all by diving.So a team of scientists decided to have sharks help with the research.Tiger sharks are huge, strong, and deadly.But they also live underwater, are fast swimmers, and spend a lot of time in sea grass meadows.Between 2016 and 2020, a team of researchers attached cameras and other trackers to the fins (鳍) of seven tiger sharks.After catching the sharks, the scientists worked quickly to attach the equipment, and then let them go again.
The scientists have learned that the waters around the Bahamas are home to the largest sea grass meadow ever discovered and that the world has roughly 40% more sea grass meadows than they previously thought.
The programme shows how useful large underwater animals can be in helping to learn more about life under the sea.Oliver Shipley is a scientist at Beneath the Waves, which led the work.He says animals like tiger sharks “...are going to take us to new places that we didn't know existed.”
语篇解读：本文是一篇说明文。文章介绍了科学家们用附在虎鲨身上的照相机拍摄的视频发现了世界上最大的海草场。
5．What can be known about sea grasses in paragraph 2
A．They help fight global warming.
B．They need to be removed regularly.
C．They mainly live on sea creatures.
D．They grow in deep waters of the ocean.
√
解析：细节理解题。根据第二段中的最后两句可知，碳会加剧全球变暖，而海草储存了大量的碳，破坏这些海草场会再次释放碳。因此可知，海草能够帮助对抗全球变暖。
6．Why are tiger sharks chosen by scientists
A．They are sensitive to sea grasses.
B．Cameras are easily fixed on them.
C．They are the most faithful sea animals.
D．They often wander in sea grass meadows.
√
解析：细节理解题。根据第三段中的“But they also live underwater, are fast swimmers, and spend a lot of time in sea grass meadows.”可知，科学家们选用虎鲨是因为它们生活在水下，游泳速度很快，并且会在海草场上度过很长时间。
7．What does Oliver Shipley think of sea animals
A．They are dangerous. B．They are adorable.
C．They are helpful. D．They are smart.
解析：推理判断题。根据最后一段最后两句可推知，Oliver Shipley认为海洋动物是有帮助的。
√
8．What is the main idea of the text
A．Many new places in the ocean need exploring.
B．Sharks help discover the world's largest sea grass meadow.
C．Scientists have found a powerful way to protect the ocean.
D．Large underwater animals contribute a lot to the ocean.
解析：主旨大意题。根据第一段内容并通读整篇文章可知，文章介绍了虎鲨帮助科学家们发现了世界上最大的海草场。
√
Ⅱ.阅读七选五
Looking for a job where you can make a difference
If you're the kind of person who loves helping those around you and you enjoy putting your knowledge and skills in the service of others, there are plenty of jobs that fit this description perfectly.They allow you to bring your contribution to society and make the most of your skills. ____
9
The best part about starting a career in education is the vast opportunities it offers.Most people associate education with teaching. ____ From teacher, professor, or school counselor to librarian, curriculum developer, or education administrator, there are many career paths you can choose from.
10
For those who would like to help others with a high-intensity career that puts them in the middle of the action, a job in the emergency services can be the one.By joining the police, ambulance, or fire and rescue service, you can serve your community and make the world a better place.But you'll have to deal with a lot of pressure and stress on a regular basis. ____
11
Working for a charity is the very definition of helping and supporting people in need. 12 In fact, the sector comprises a variety of different roles, so career opportunities are very diverse.From working in communications, HR, or IT to choosing a job in administration, there are different ways to bring your contribution.On top of that, charity jobs may also provide a certain degree of flexibility in terms of working hours and conditions of employment.
____ Combine your passion for helping others with the right training and skills.You'll be able to make a difference in people's lives and positively impact the world.
A．Make a careful and proper choice.
B．Here are the options worth exploring.
C．The following cautions are the first to consider.
D．Contrary to popular belief, it isn't all about fundraising.
13
E．This field provides you few opportunities to choose from.
F．The field actually has various positions and professional roles.
G．A job as a first responder is both mentally and physically demanding.
语篇解读：本文是一篇说明文。文章介绍了一些值得探索的、可以让人感到有所作为的工作。
9．选B 本空位于段尾，为承上启下的过渡句。上文谈到，如果你喜欢帮助周边的人，喜欢用你的知识和技能为他人服务，那么有很多工作都非常适合你，它们能让你为社会做出贡献，充分利用你的技能。再结合下文对一些职业角色的介绍可知，空处应点明接下来会介绍一些值得探索的职业。故B项符合语境。
10．选F 根据下文的“From teacher, professor ...career paths you can choose from”可知，教育领域有很多职业可以选择。故F项“这个领域实际上有各种各样的职位和专业角色”符合语境。
11．选G 空前的“But you'll have to ...regular basis”讲到，但你必须经常应对很多压力，故G项“作为第一反应者的工作对精神和身体要求都很高”符合语境。G项中的“both mentally and physically demanding”与空前的“a lot of pressure and stress”相呼应。
12．选D 根据上文的“Working for a charity ...people in need”和下文的“In fact, the sector comprises ...bring your contribution”可知，D项“与普遍的看法相反，它(慈善事业)并不完全是关乎筹款的”符合语境。
13．选A 本空是段首主题句。根据下文的“Combine your passion for helping others with the right training and skills”可知，本段意在提出进行职业选择的建议。故A项“做出谨慎且恰当的选择”可以概括本段内容，符合语境。UNIT 3 课时检测(一) “Reading and Thinking”的课文习读环节
Ⅰ.阅读理解
A
Underwater explorers have discovered an ancient shipwreck in the ruins of a long lost sunken Egyptian city Heracleion, off the coast of Alexandria in Egypt.Researchers have proved the ship to be over 2,000 years old among the ruins.
Although Heracleion was once an important economic center, it was destroyed by the forces of nature, sinking rapidly in the water.The remains of the city's houses, temples, and markets have lain ten meters deep in the Abu Qir Bay, east of present day Alexandria.As a result，underwater explorers regularly make exciting discoveries there.Among them, statues and stone tablets with words made it possible to figure out the city's name: Heracleion.
Researchers explained that the ship was 25 meters long.The discovery of the shipwreck was fascinating because ships from that period in history were very seldom.The underwater research showed that the ship was struck by several big stones from the nearby temple, making the ship at the bottom of the sea.Dr Mustafa Waziri, Secretary General of the Higher Archaeology Council, said the ship was in the canal which flowed along the side of the Temple of Amun.An earthquake struck the city, making the temple destroyed and the ship sink.
While the shipwreck discovery was exciting, underwater explorers discovered the remains of a Greek cemetery (墓地) dating back to the 4th century BC during the underwater exploration.
Researchers explained that the discovery shows the Greek traders lived in the city.They built their own temples near the temple of Amun, and the remains of both have been found together and in good condition in the sunken city some 7 miles off the coast of Egypt.It is worth noting that the city of Heracleion had been the largest port city in Egypt across the Nile Delta, before the city of Alexandria was founded in 331 BC.Several earthquakes destroyed it.
1．Why did the city Heracleion disappear
A．It was destroyed by the Greek traders.
B．It was hit and covered by a big flood.
C．It was unimportant and was deserted.
D．It was ruined and sank into the sea.
2．What caused the ship to sink into the sea
A．Its own length. B．A terrible earthquake.
C．Carrying too many stones. D．The building of a temple.
3．What can be inferred from the discovery of a Greek cemetery
A．The Greek cemetery was destroyed.
B．Greek traders built the temple of Amun.
C．Heracleion was probably a trade center.
D．Greek has a longer history than Egypt.
4．In which section of a newspaper can we find the text
A．Environment. B．History.
C．Sport. D．Education.
B
Scientists have discovered the world's largest known field of sea grass.They did it using videos shot by some unusual helpers：tiger sharks.The work should help protect the sea grass，and also shows off a powerful way to explore the ocean.
Sea grasses are flowering plants that normally grow in shallow waters near coasts.They grow in thick fields, known as meadows (草地)．Sea grass meadows help clean the ocean's water, and provide food and shelter for many sea creatures.Sea grasses store huge amounts of carbon — the harmful pollution that's making global warming worse.Damaging these sea grass meadows can release this pollution again, so it's important to protect them.
From above, the meadows can be hard to spot, either because the water is too deep or not clear enough.And the ocean is so huge that it's simply not possible to study it all by diving.So a team of scientists decided to have sharks help with the research.Tiger sharks are huge, strong, and deadly.But they also live underwater, are fast swimmers, and spend a lot of time in sea grass meadows.Between 2016 and 2020, a team of researchers attached cameras and other trackers to the fins (鳍) of seven tiger sharks.After catching the sharks, the scientists worked quickly to attach the equipment, and then let them go again.
The scientists have learned that the waters around the Bahamas are home to the largest sea grass meadow ever discovered and that the world has roughly 40% more sea grass meadows than they previously thought.
The programme shows how useful large underwater animals can be in helping to learn more about life under the sea.Oliver Shipley is a scientist at Beneath the Waves, which led the work.He says animals like tiger sharks “...are going to take us to new places that we didn't know existed.”
5．What can be known about sea grasses in paragraph 2
A．They help fight global warming.
B．They need to be removed regularly.
C．They mainly live on sea creatures.
D．They grow in deep waters of the ocean.
6．Why are tiger sharks chosen by scientists
A．They are sensitive to sea grasses.
B．Cameras are easily fixed on them.
C．They are the most faithful sea animals.
D．They often wander in sea grass meadows.
7．What does Oliver Shipley think of sea animals
A．They are dangerous. B．They are adorable.
C．They are helpful. D．They are smart.
8．What is the main idea of the text
A．Many new places in the ocean need exploring.
B．Sharks help discover the world's largest sea grass meadow.
C．Scientists have found a powerful way to protect the ocean.
D．Large underwater animals contribute a lot to the ocean.
Ⅱ.阅读七选五
Looking for a job where you can make a difference
If you're the kind of person who loves helping those around you and you enjoy putting your knowledge and skills in the service of others, there are plenty of jobs that fit this description perfectly.They allow you to bring your contribution to society and make the most of your skills.__9__
The best part about starting a career in education is the vast opportunities it offers.Most people associate education with teaching.__10__ From teacher, professor, or school counselor to librarian, curriculum developer, or education administrator, there are many career paths you can choose from.
For those who would like to help others with a high intensity career that puts them in the middle of the action, a job in the emergency services can be the one.By joining the police, ambulance, or fire and rescue service, you can serve your community and make the world a better place.But you'll have to deal with a lot of pressure and stress on a regular basis.__11__
Working for a charity is the very definition of helping and supporting people in need.__12__ In fact, the sector comprises a variety of different roles, so career opportunities are very diverse.From working in communications, HR, or IT to choosing a job in administration, there are different ways to bring your contribution.On top of that, charity jobs may also provide a certain degree of flexibility in terms of working hours and conditions of employment.
__13__ Combine your passion for helping others with the right training and skills.You'll be able to make a difference in people's lives and positively impact the world.
A．Make a careful and proper choice.
B．Here are the options worth exploring.
C．The following cautions are the first to consider.
D．Contrary to popular belief, it isn't all about fundraising.
E．This field provides you few opportunities to choose from.
F．The field actually has various positions and professional roles.
G．A job as a first responder is both mentally and physically demanding.
UNIT 3 课时检测(一)
Ⅰ.阅读理解
[A]
语篇解读：本文是一篇记叙文。文章通过讲述Heracleion废墟中发现了一艘古代沉船和可追溯到公元前4世纪的希腊墓地遗迹的故事来探索当时一些不为人知的历史真相。
1．选D 细节理解题。根据第二段“Although Heracleion ...in the water.”可知，Heracleion被摧毁了，并沉入海底。
2．选B 细节理解题。根据第三段“Dr Mustafa Waziri ...the ship sink.”可知，船是因为地震而导致沉没的。
3．选C 推理判断题。根据最后一段“Researchers explained that the discovery shows the Greek traders lived in the city.”可知，这里有商人居住；根据“It is worth noting ...in 331 BC.”可知，它在亚历山大城建立之前还是埃及最大的港口城市，港口城市一般交通便利，故推知Heracleion可能是一个贸易中心。
4．选B 推理判断题。通读本文可知，文章讲述的是水下探险家在埃及城市Heracleion废墟中发现了一艘古代沉船和可追溯到公元前4世纪的希腊墓地遗迹，这些发现背后都承载着一定的历史真相，故我们可能会在报纸的“History”(历史)版块中读到这篇文章。
[B]
语篇解读：本文是一篇说明文。文章介绍了科学家们用附在虎鲨身上的照相机拍摄的视频发现了世界上最大的海草场。
5．选A 细节理解题。根据第二段中的最后两句可知，碳会加剧全球变暖，而海草储存了大量的碳，破坏这些海草场会再次释放碳。因此可知，海草能够帮助对抗全球变暖。
6．选D 细节理解题。根据第三段中的“But they also live underwater, are fast swimmers, and spend a lot of time in sea grass meadows.”可知，科学家们选用虎鲨是因为它们生活在水下，游泳速度很快，并且会在海草场上度过很长时间。
7．选C 推理判断题。根据最后一段最后两句可推知，Oliver Shipley认为海洋动物是有帮助的。
8．选B 主旨大意题。根据第一段内容并通读整篇文章可知，文章介绍了虎鲨帮助科学家们发现了世界上最大的海草场。
Ⅱ.阅读七选五
语篇解读：本文是一篇说明文。文章介绍了一些值得探索的、可以让人感到有所作为的工作。
9．选B 本空位于段尾，为承上启下的过渡句。上文谈到，如果你喜欢帮助周边的人，喜欢用你的知识和技能为他人服务，那么有很多工作都非常适合你，它们能让你为社会做出贡献，充分利用你的技能。再结合下文对一些职业角色的介绍可知，空处应点明接下来会介绍一些值得探索的职业。故B项符合语境。
10．选F 根据下文的“From teacher, professor ...career paths you can choose from”可知，教育领域有很多职业可以选择。故F项“这个领域实际上有各种各样的职位和专业角色”符合语境。
11．选G 空前的“But you'll have to ...regular basis”讲到，但你必须经常应对很多压力，故G项“作为第一反应者的工作对精神和身体要求都很高”符合语境。G项中的“both mentally and physically demanding”与空前的“a lot of pressure and stress”相呼应。
12．选D 根据上文的“Working for a charity ...people in need”和下文的“In fact, the sector comprises ...bring your contribution”可知，D项“与普遍的看法相反，它(慈善事业)并不完全是关乎筹款的”符合语境。
13．选A 本空是段首主题句。根据下文的“Combine your passion for helping others with the right training and skills”可知，本段意在提出进行职业选择的建议。故A项“做出谨慎且恰当的选择”可以概括本段内容，符合语境。
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