35 Unit 5 Revealing Nature Period 7 单元回顾 默写背诵-【名师导航】2026-2027学年高中英语选择性必修第一册同步课件(外研版)

该高中英语课件围绕“人与自然——自然科学研究成果”主题，涵盖核心词汇、拓展词汇（如distant词性转换）、重点短语及句型（如so...that...仿写），通过主题升华衔接自然探索与科学精神，搭建从词汇句型到语篇应用（亚马逊雨林、新航路开辟阅读）的学习支架。 其亮点在于以语言能力为核心，通过新题型词汇应用（如suspect多词性填空）和阅读推理题（如亚马逊雨林生态链分析）提升思维品质，结合文化意识培养（人与自然和谐、科学精神）。教学方法实用，学生可巩固语言知识并深化主题理解，教师便于直接用于单元复习与能力拓展。

Unit 5　 Revealing nature 主题语境　人与自然——自然科学研究成果 Period 7　单元回顾 默写背诵(Revealing nature) Ⅰ．核心单词 1．The hearts of the people of all the nationalities __________ (把……联系起来) to each other． 2．The difference between the two _______ (样本) was not statistically significant． 3．If you lose your job，you'll only have yourself to _____ (指责)． are linked samples blame Period 7　单元回顾 默写背诵(Revealing nature) 4．He ________ (谢绝) my offer of help with a polite smile． 5．Scientific evidence suggests that sea levels here will rise by at least 30 ___________ (厘米) by 2030． 6．Some festivals are held to honour the dead or to satisfy the _________ (祖先)． declined centimetres ancestors Period 7　单元回顾 默写背诵(Revealing nature) Ⅱ．拓展词汇 会书写 1．distant adj．遥远的→ ________ n．距离→_________ adv．远地；恍惚地 2．geology n．地质学→ _________ n．地质学家 3．evolve v．进化→ _________ n．进化 4．suspect v．猜想，怀疑，觉得 n．嫌疑人→ _________ n．怀疑，嫌疑→ __________ adj．怀疑的；可疑的 5．character n．性格；特点；人物；角色→______________ n．特征，特性 6．detect v．发现，察觉(尤指不易觉察到的事物)→ _________ n．侦探，警探→ _________ n．侦查；探测→ ________ n．探测器 distance distantly geologist evolution suspicion suspicious characteristic detective detection detector Period 7　单元回顾 默写背诵(Revealing nature) 会应用 1．Though there is a long ________ between Tom and his family，they don't feel _______．(distant) 2．The police _________ that two of the ________ caught yesterday were connected with another case．They were more __________．(suspect) 3．There are five __________ in this play，but they have their own _______________．(character) 4．Small quantities of poison were ________ in the dead man's stomach．The _________ of crime is not always easy．(detect) 5．The keynote speech is about the _________ (evolve) of the computer． distance distant suspected suspects suspicious characters characteristics detected detection evolution Period 7　单元回顾 默写背诵(Revealing nature) Ⅲ．重点短语 会书写 1．_______________响应号召 2．_____________是耻辱，是丢脸的事 3．____________源于……的，原产于…… 4．___________讨论中的；有疑问 5．_______________塞满；挤满；充满 6．_____________出现；产生 7．________适应；适合 8．____________各种各样的 answer the call be a disgrace be native to in question be crowded with come to exist adapt to a variety of Period 7　单元回顾 默写背诵(Revealing nature) 会应用 1．Many countries have adopted birds that _____________ the country or which migrate through the region． 2．Many young people _________________ to volunteer in the community service project last month． 3．The athlete's use of illegal performance-enhancing drugs _____________ to the world of sports． 4．She has participated in ____________ extracurricular activities，such as dancing，painting，and voluntary work． are native to answered the call is a disgrace a variety of Period 7　单元回顾 默写背诵(Revealing nature) Ⅳ．重点句型 会记忆 会仿写 1．so...that... But Darwin's scientific studies were so convincing that more and more people started to believe his theory． 1．母亲非常感动，眼里闪烁着喜悦的泪水。 Mother was _____________ her eyes were shining with tears of great joy． so moved that Period 7　单元回顾 默写背诵(Revealing nature) 会记忆 会仿写 2．be＋adj．＋to do Gregor Mendel chose to study pea plants because their characteristics were easy to control． 2．这本书读起来很有趣，尤其是对历史爱好者来说。 The book _____________________，especially for history enthusiasts． is interesting to read Period 7　单元回顾 默写背诵(Revealing nature) 会记忆 会仿写 3．主语＋be＋said＋动词不定式 Alexander the Great and Marco Polo were said to have visited such a tree in India． 3．据说这家公司已经开发了一项将改变该行业的新技术。 The company ____________________ a new technology that will change the industry． is said to have developed Period 7　单元回顾 默写背诵(Revealing nature) 认识与探索自然是人与自然主题语境下的一个重要子主题。通过对生物物种、生物进化、生物多样性、自然界植物语言奥秘等内容的介绍和从古至今跨越海洋进行交流与探索的情况，激发学生探索自然的兴趣，引发他们对自然的思考和敬畏，进而理解人与自然和谐相处的重要意义。同时通过讲述科学家的故事，引导学生体会科学探索的艰辛，学习科学家不畏艰难、大胆质疑、勇敢探究的科学精神和创新精神。 Period 7　单元回顾 默写背诵(Revealing nature) A The Amazon rainforest：a natural treasure Welcome to the jungle，a huge sea of green alive with the sounds of animals．This is the Amazon rainforest．As the largest rainforest in the world，it plays a significant role in maintaining the fine balance of the Earth's ecosystem． Period 7　单元回顾 默写背诵(Revealing nature) The Amazon rainforest crosses into eight countries，including Brazil and Peru，and one overseas region of France，all on the South American continent．With an area of around 6 million square kilometres，the Amazon rainforest is more than half the size of China．The Amazon River，from which the rainforest gets its name，is close to 6，400 kilometres in length—roughly 100 kilometres longer than the Yangtze River．On its journey from the mountains to the ocean，the river supports many different ecosystems．They give this area the richest biodiversity on the Earth：one in ten known species in the world can be found here． Period 7　单元回顾 默写背诵(Revealing nature) Of the 390，000 plant species known to us，more than 40，000 can be found in the Amazon．This tall and ancient brazil nut tree produces nuts that we can eat；these water lilies are big enough to lie down on．The forest's different levels support an unbelievable variety of wildlife．At the bottom，there is a system of roots beneath the ground．Above that is the mass of leaf litter on the dark forest floor．The next level is made up of shorter plants with large leaves．Then there are the towering ancient hardwoods，and finally the tops of the tallest trees many metres above the ground．Each level of the forest forms its own little world，home to different kinds of living things． Period 7　单元回顾 默写背诵(Revealing nature) More than 1，300 species of birds and over 400 species of mammals hide among the jungle's plant life．This jaguar is one example．It has a yellowish-brown coat with black spots．While a significant number of jaguars survive here，they are only one element of this forest's food chain．They feed on at least 87 species，including frogs．These frogs，in turn，feed on insects which eat leaves and fruit．When a jaguar dies，a tiny army of microorganisms helps break down its body and return the nutrients to the earth． Period 7　单元回顾 默写背诵(Revealing nature) The Amazon rainforest breathes life into the planet by fixing carbon and producing over 20 per cent of all the Earth's oxygen．Thus，it is often known as the“lungs of the planet”．Moreover，the Amazon rainforest is a treasure house of species that can be used for food or medicine．Yet there is one major danger to these irreplaceable plants and animals：us．Over the past 50 years，about 17 per cent of the rainforest has disappeared due to human activities such as agriculture and cattle farming．As the impact of human activities continues to grow and the list of species in danger of extinction becomes longer，we are left with a question：can we afford to damage the“lungs of the planet”？ Period 7　单元回顾 默写背诵(Revealing nature) 词汇积累 1．ecosystem 　 　 n．生态系统 2．length n．长，长度；时间的长短；篇幅，(电影)片长 3．biodiversity n．生物多样性 4．lily n．百合(花) 5．wildlife n．野生动植物，野生生物 6．towering adj．高大的，高耸的；出色的 Period 7　单元回顾 默写背诵(Revealing nature) 7．hardwood n．阔叶树；硬材(阔叶树的木材) 8．mammal n．哺乳动物 9．jaguar n．美洲豹，美洲虎 10．microorganism n．微生物 Period 7　单元回顾 默写背诵(Revealing nature) √ 1．How many countries does the Amazon rainforest cross into? A．Five countries．　　 B．Six countries． C．Seven countries． D．Eight countries． 2．How many known species in the world can be found in the Amazon rainforest? A．One in five． B．One in eight． C．One in ten． D．One in six． √ Period 7　单元回顾 默写背诵(Revealing nature) √ 3．According to paragraph 4，which does NOT belong to the forest's food chain mentioned? A．Tigers． B．Frogs． C．Microorganisms． D．Jaguars． Period 7　单元回顾 默写背诵(Revealing nature) √ 4．What can we infer from paragraph 5? A．The Amazon rainforest only benefits our lives． B．The Amazon rainforest is harmful to us in many ways． C．Human activities do great damage to the Amazon rainforest． D．Over the past 50 years，17 per cent of the rainforest has disappeared due to mechanization． Period 7　单元回顾 默写背诵(Revealing nature) √ 5．What is the author's attitude towards the Amazon rainforest? A．Positive． B．Negative． C．Objective． D．Indifferent． Period 7　单元回顾 默写背诵(Revealing nature) B REACHING OUT ACROSS THE SEA 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． Period 7　单元回顾 默写背诵(Revealing nature) 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 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 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． Period 7　单元回顾 默写背诵(Revealing nature) 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，these land and sea routes remained active channels between other cultures for centuries． Period 7　单元回顾 默写背诵(Revealing nature) 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． Period 7　单元回顾 默写背诵(Revealing nature) 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． Period 7　单元回顾 默写背诵(Revealing nature) 词汇积累 1．curiosity 　　　　 n．好奇心 2．merchant n．商人；批发商 adj．海上货运的 3．set sail 起航；开航 4．a sight to behold 壮观的景象 5．withdraw vi．& vt．(使)撤回；撤离 6．revisit vt．重游；再访 7．initiative n．倡议；主动性；积极性 8．enhance vt．提高；加强；增进 Period 7　单元回顾 默写背诵(Revealing nature) 6．Who was (were) the earliest explorer(s) of the Western Ocean in the text? A．Marco Polo． B．Christopher Columbus． C．European explorers． D．Merchants and explorers from East． √ Period 7　单元回顾 默写背诵(Revealing nature) 7．Why did African royal families send gifts such as giraffes to China? A．To make money． B．To stop the war． C．To show their friendship． D．To award the ambassador． √ Period 7　单元回顾 默写背诵(Revealing nature) 8．What can you learn about in Du Huan's book Record of My Travels? A．Marco Polo． B．Many foreign countries． C．Christopher Columbus． D．Ways to make silk． √ Period 7　单元回顾 默写背诵(Revealing nature) 9．Which of the following can be inferred from the text? A．Columbus'exploration was stopped for economic reasons． B．No accurate maps of the countries around the Indian Ocean existed before Zheng He． C．China will have more expeditions across the sea far into the future． D．The giraffe was an animal that could not be found in China in the Ming Dynasty． √ Period 7　单元回顾 默写背诵(Revealing nature) $$