Unit 3 Sea Explorationform the foundation of构成……的基础early civilisations早期文明tale n．故事；叙述search for寻找merchants and explorers商人和探险家set sail 起航；开航find ones way找到路become known as作为……而出名extend vt.扩展；使伸长；延长centre around以……为中心negotiate trade deals协调贸易问题awareness of意识到over the centuries几个世纪以来develop relations with发展与……的关系seven large fleets七支大型船队behold vt.看；看见in a league of ones own独领风骚under the command of在……的指挥下African royal families非洲 王 室in return作为报答spice n．(调味)香料withdraw from退出；撤回channel n．航道reach out across the sea远渡重洋the 21st Century MaritimeSilk Road 21世纪海 上 丝 绸之路encourage cooperation and trade鼓励开展合作和贸易strengthen the bonds加强联系in years to come在未来几年invested billions投资数十亿for the benefit of为……的利益cultural exchange文化交流many other places left很多其他剩余的地方expeditions to explore the Arctic北极探险活动from a scientific point of view从科学的角度来看with the latest technology in hand掌握最新技术enhance relationships加强关系原文呈现 REACHING OUT ACROSS THE SEATrade and curiosity have often formed the foundation of mankinds greatest achievements.To complete the great map of the world(1) was a strong passion for the people of early civilisations.Marco Polos 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(2)．(1)不定式短语作主语。
2)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(3)．A trading route across the sea was also extended along the coasts of the Indian Ocean，centred around Ceylon (now Sri Lanka)．Here，merchants from China and many other places met to negotiate trade deals，which also led to more awareness of each others cultures(4)．Over the centuries，further trading allowed more exploration of the regions to the west of China，as recorded in Du Huans Record of My Travels in the eighth century.(3)what引导宾语从句。
4)which引导非限制性定语从句，修饰主句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 fleets 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(5)，these land and sea routes remained active channels between other cultures for centuries.(5)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(6)．(6)which引导非限制性定语从句，修饰先行词the 21st Century Maritime Silk RoadThe 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 (7)．(7) which引导非限制性定语从句，修饰主句。
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(8)，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.(8)although引导让步状语从句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.Words and Phrases 1 mercy n．仁慈；宽恕；恩惠[教材原句P32] Although this was banned in 1982，some countries are still “murdering” these intelligent creatures without mercy.正在尽管这种行为在1982年就被禁止了，但一些国家仍然在毫不留情地“谋 杀”这些聪明的生物。
[例1] We never show mercy to bad people.我们对坏人是决不留情的[例2] Its a mercy that the accident happened so close to the hospital.幸亏车祸发生在离医院很近的地方[造句] 他受到无情地对待He was treated without mercy.[知识拓展](1)show mercy to sb. 怜悯某人have mercy on 对……表示怜悯at the mercy of 任凭……的摆布；在……的支配中without mercy 残忍地，毫无同情心地(2)merciful adj. 仁慈的；宽大的2 possession n．个人财产；拥有；控制[教材原句P32] The sea is home to life，not human beings possessions.海洋是生命的家园，而不是人类的财产[例1] He carried all his worldly possessions in an old suitcase.他将所有的个人财物放在了一只旧手提箱里。
[例2] Anyone in full possession of the facts would see that we are right.任何完全了解事实的人都会明白我们是正确的[造句] 你是什么时候拥有新房子的？When di。