Unit 1 Section Ⅱ Welcome to the unit（配套课件PPT）-【步步高】2025-2026学年高二英语选修第一册学习笔记（译林版·新教材）

该高中英语课件围绕“海洋探索”主题，涵盖课文整体理解、长句难句分析、基础知识达标及综合训练，通过速读明大意、细读析细节、读后语法填空的步骤，构建从文本理解到语言应用的学习支架。 其亮点在于聚焦语言能力与思维品质，如长句分析拆解主从复合句、倒装句等结构提升语法运用能力，阅读理解题训练细节推断与主旨归纳培养逻辑思维，重点词块默写与单句仿写结合强化学习能力。学生能系统提升语言综合运用与思维，教师可高效开展分层教学。

Section Ⅱ Our living planet Unit 1 Welcome to the unit & Reading Part 1　课文整体理解 Part 2　长句难句分析 Part 3　基础知识达标 训练1 整体理解 课文 3 Step 1　速读——整体理解文意 Ⅰ.明文章大意 What is the main idea of the passage? A.More than eighty per cent of the world’s oceans are unexplored. B.The amazing world beneath the ocean. C.Creatures living in the twilight zone. D.Geological formations beneath the ocean. √ Ⅱ.悉篇章结构 Introduction Para.l：We should explore the world 1. the ocean for 2. and unusual 3._________ . Main body Para.2：4. the known marine life lives in the open ocean，and small filter feeders and hunters live in 5. . beneath new life forms geological formations Much of the twilight zone Main body Para.3：The deep ocean is home to 6.____________ on the Earth. Para.4：Shrimps and other organisms live around 7. ，and the Mariana Trench can be found on the 8. floor. Conclusion Para.5：More 9. beneath the surface of the ocean await us. the strangest creatures hydrothermal vents ocean wonders Step 2　细读——深度获取细节 1.What’s the function of the last sentence in paragraph 1? A.To enrich the content. B.To encourage readers to think. C.To tell the readers the necessity of ocean exploration. D.To attract the readers to the topic of ocean exploration. √ 2.What can we know according to paragraph 3? A.No creatures rely on eyesight to obtain food. B.There is no trouble for the fish to find a mate. C.Few organisms in the deep ocean rely only on eyesight. D.It is freezing cold and there is little light in the deep ocean. √ 3.Why does the author mention Mount Qomolangma in paragraph 4? A.To highlight how deep the Challenger Deep is. B.To stress how important the Challenger Deep is. C.To tell the readers how high Mount Qomolangma is. D.To highlight the Challenger Deep is far from boring. √ 4.How is the passage mainly developed? A.By making comparisons. B.In spatial order. C.In chronological order. D.By analyzing causes. √ Step 3　读后——课文语法填空 It is believed that more than eighty per cent of the world’s oceans are not explored，which means that we have explored less than 20 per cent of them.If we want to find exciting new life 1. (form) as well as undiscovered and 2. (usual) geological formations，the oceans are ideal places we should look for. forms unusual The ocean 3. (main) consists of three different zones.The first 200 metres just below the ocean surface 4. (call) the open ocean，where much of the known marine life lives and most visible light 5. (exist).The twilight zone is below 200 metres，where with little sunlight，there is almost no plant life.Here live small filter feeders 6._____ hunters.Past 1,000 metres，we have reached the deep ocean，where there is no light and the pressures are huge.Many strange creatures can be found living 7. this extreme environment.On 8. (reach) the ocean floor，we may see shrimps and other organisms around hydrothermal vents.The famous Mariana Trench can be found in this zone. mainly is called exists and in reaching 9. you can see，the world beneath the surface of the ocean is really an amazing place.The incredible geological formations and unexpected creatures can fascinate you greatly! We can’t wait 10.___ (explore) it. 返 回 As to explore 难句分析 长句 14 1.So，if we want to find (excite) new life forms as well _____ undiscovered and unusual geological formations，the ocean is where we should also be looking.(P2，Para.1) 结构分析：此句话为 句。if引导 从句，where引导 从句。 汉语翻译：_____________________________________________________ _______________________________________________________________ Ⅰ.补句子　析结构 exciting as 主从复合 条件状语 表语 因此，如果我们想要发现令人兴奋的新的生命形式以及未被发现的、不寻常的地质构造，海洋是我们也应该寻找的地方。 2.The first 200 metres of our dive takes us what can be called the open ocean，where most visible light exists.(P2，Para.2) 结构分析：此句话为 句。what引导 从句，where引导 从句。 汉语翻译：____________________________________________________ ______________________________________________________________ through 主从复合 宾语 非限制性定语 我们下潜的头200米带我们穿过所谓的透光区，这里有大部分可见光。 3. (sink) below 200 metres，we enter the twilight zone，where there is little sunlight and thus almost no plant life.(P2，Para.2) 结构分析：此句话为 句。where引导 从句。 汉语翻译：____________________________________________________ ______________________________________________________________ Sinking 主从复合 非限制性定语 下潜到200米以下，我们进入暮光区，这里没有阳光，因此几乎没有植物。 4.Also (live) in the twilight zone are hunters with telescopic，upward-pointing eyes that can easily spot a meal in the waters above.(P2，Para.2) 结构分析：此句话为 句。主句是一个 句，句子的主语是 ；that引导 从句，并在从句中作主语。 汉语翻译：_____________________________________________________ _______________________________________________________________ living 主从复合 倒装 hunters 限制性定语 同样生活在暮光区的还有双眼凸起向上的猎食者，它们能轻易地发现上面水域中的食物。 5. (consequent)，the fish most likely (eat) have evolved to have thin bodies so that they are less easily seen from below.(P2，Para.2) 结构分析：此句话为 句。so that引导 从句。 汉语翻译：_____________________________________________________ _______________________________________________________________ Consequently to be eaten 主从复合 结果状语 结果，最有可能被吃掉的鱼已经进化出细长的身体，所以从下面不太容易看见它们。 6.Also，some fish have both male and female organs to increase the chances of reproduction，as fish are so scarce these depths that it can be difficult for them (find) a mate.(P3，Para.3) 结构分析：此句话为 句。主句中to increase the chances of reproduction 为不定式作 ；as引导 从句，从句中又含有so...that...引导的 从句。 汉语翻译：_____________________________________________________ _______________________________________________________________ at to find 主从复合 目的状语 原因状语 结果状语 此外，一些鱼类同时拥有雄性和雌性器官，以增加繁殖的可能性，因为在这样的深度鱼类稀少，以至于它们很难找到配偶。 7.On our journey down，we have been fascinated by incredible geological formations as well as (expect) life forms that have become strangely adapted their extreme environment.(P3，Para.5) 结构分析：此句话为 句。that引导 从句。 汉语翻译：_____________________________________________________ _______________________________________________________________ unexpected to 主从复合 限制性定语 在我们下潜的旅途中，不可思议的地质结构，还有已经出奇地适应了极端环境的、出乎意料的生物，让我们心驰神往。 8.With so much of the oceans (leave) to explore，who knows what wonders still await us in the future？(P3，Para.5) 结构分析：此句话为 句。what引导 从句。 汉语翻译：_____________________________________________________ _______________________________________________________________ left 主从复合 宾语 海洋还剩下这么多的地方要被探索，谁知道未来还有什么奇迹等着我们呢？ Ⅱ.研典句　学用法 Meanwhile，it is estimated that more than eighty per cent of the world’s oceans are unexplored.(P2，Para.1) 同时，据估算，世界上超过80%的海洋尚未被探索。 Before the discovery of these creatures，it was thought that all life on the Earth obtained its energy from the sun.(P3，Para.4) 在发现这些生物之前，人们认为地球上的所有生命都是从太阳获得能量的。 结构分析：这两句话中的it都是作形式主语，真正的主语为that引导的从句。 1　it is＋v.-ed＋that... it作形式主语的常用句式： • It be＋过去分词(said，thought，believed，hoped，reported...)＋that 从句 • It be＋形容词(strange，important，vital，obvious，possible...)＋that 从句 • It be＋名词短语(a pity，a shame，a fact，a good idea，no wonder...) ＋that从句 • It＋不及物动词(occur，happen，seem...)＋that从句 (1)希望将来某一天我有机会目睹海洋中的鱼类是如何被它们的敌人捕获的。 to witness how the fish in the ocean are captured by their enemies. (2)显然，我们应该花一些时间来简要回顾一下唐朝的历史。 we should spend some time taking a brief look at the history of the Tang Dynasty. It is hoped that some day I will have a chance It is obvious that (3)中国的载人潜水器“蛟龙号”在2012年创下了世界下潜纪录，这是事实。 China’s manned submersible，Jiaolong，set a world diving record in 2012. (4)(2022·浙江1月，应用文写作)碰巧两年前我们在“中国——爱尔兰文化节”上相识，并且成为好朋友。 ____________________________________________________ and became good friends two years ago. It is a fact that It happened that we met at China-Ireland Cultural Festival On reaching the ocean floor，we may see shrimps and other organisms around hydrothermal vents.(P3，Para.4) 一到达海底，我们就可能在热液喷口周围看到虾和其他生物。 2　on doing...一……就…… • on/upon doing...“一……就……”，表示一件事紧接着另一件事发生。 • “一……就……”的其他表达：as soon as，the moment/minute/instant， immediately/directly/instantly，no sooner...than...，hardly...when...。 (1)(读后续写之情绪描写)一听到这个消息，他就抑制不住心中的兴奋，高兴地跳了起来。 ，he was unable to control his inner excitement and jumped with joy. (2)(2021·浙江1月，读后续写)我的头一被从大南瓜里拔出来，我就松了一口气。 ______________________________________________________________ ，I sighed in relief. On/Upon hearing the news As soon as/The instant/Immediately my head was pulled out of the huge pumpkin (3)She when a student came to visit her. 她刚出门就有一个学生来看望她。 had hardly gone out Of the many strange geological formations to be found here are rock bridges which cross the Trench，some reaching a height of 2,500 metres above the Challenger Deep.(P3，Para.4) 在这里发现的许多奇怪的地质构造中有跨越(马里亚纳)海沟的石桥，有些在“挑战者深渊”上方达2 500米的高度。 3　独立主格结构 结构分析： 此句话为主从复合句。主句为倒装结构，其中to be found here为动词不定式作后置定语；which引导限制性定语从句，修饰先行词rock bridges；“some reaching a height of...”为“主语＋现在分词短语”构成的独立主格结构。 • 独立主格结构是由名词或代词加上分词等构成的一种结构，在句中 一般作状语，表示时间、条件、原因、伴随状况等。 • 其常用形式： 逻辑主语(名词或代词)＋ 现在分词(表示主动) 过去分词(表示被动或完成) 动词不定式(表示将来) 形容词/副词/名词/介词短语 (1)(读后续写之情绪描写)当认出来访者是谁时，约翰张大了嘴巴，他的眼里闪耀着兴奋的光芒。(n.＋v.-ing) When he recognized who the visitor was，John opened his mouth wide， . (2)他的精力都集中在研究海洋的地质构造上，他没有时间陪伴家人。(n.＋v.-ed) researching geological formations of the ocean，he had no time for his family. his eyes sparkling/shining with excitement His attention concentrated/focused on (3)黄昏时分史蒂文低着头，眼里含着泪，慢慢地向公交车走去。(n.＋adv.) At twilight，Steven walked slowly to the bus，_____________ and tears in his eyes. his head down 课文重点词块默写 1.太空的浩瀚无垠 __________________ 2.增进我们对宇宙的了解 _____________________________________ 3.我们对外太空的好奇心 ___________________________ 4.仍然不动摇 __________________ 5.不寻常的地质结构 ___________________________ 6.潜到海底 ___________________________ 7.很可能被吃掉 __________________ 8.阻止它们逃跑 ____________________________ the vastness of space advance our understanding of the universe our curiosity about outer space remain unshakeable unusual geological formations dive to the bottom of the ocean be likely to be eaten prevent them from getting away 9.仅依靠它们的视觉生存 _________________________________ 10.避免被捕获 _________________ 11.依靠其他感官 _____________________ 12.察觉水压的细微变化 __________________________________ 13.除了……以外(还) _____________ 14.位于 ____________ 15.作为……而出名 ____________ 16.一点也不无聊 _________________ 17.被……深深吸引 _______________ 18.适应它们的极端环境 ________________________________ rely solely on their eyesight to survive avoid being caught depend on other senses detect slight changes in water pressure in addition to be located in be known as be far from boring be fascinated by adapt to their extreme environment 返 回 知识达标 基础 38 1.据说，一位地质学专家将来我们学校开讲座。(it be＋v.-ed＋that...) a geologist would come to our school to deliver a lecture. 2.一听到这个消息，对地质学感兴趣的学生们高兴地跳了起来。(on doing) ，the students who are interested in geology leapt with joy. 3.出席讲座的是来自我们学校的学生和老师。(完全倒装) the students and teachers from our school. 单句写作(课文佳句仿写) It was said that On hearing the news Present at the lecture were 4.他的讲座由许多话题组成，一个是关于地球的形成。(独立主格) His speech consisted of a variety of topics，__________________________ . 5.这个讲座不仅激发了同学们对地质学的兴趣，还增进了同学们对地质学的了解。(not only倒装) geology，but it also advanced their understanding of geology. one concerning the formation of the earth Not only did the lecture arouse the students’ interest in 组句成篇　以上句子可以加上过渡词语和其他联想内容组成一篇小短文。 __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ It was said that a geologist would come to our school to deliver a lecture.On hearing the news，the students who are interested in geology leapt with joy.Present at the lecture were the students and teachers from our school.His speech consisted of a variety of topics，one concerning the formation of the earth.Not only did the lecture arouse the students’ interest in geology，but it also advanced their understanding of geology. 返 回 训练1 42 A Explorers started making navigation(导航) charts showing how wide the ocean was more than 500 years ago.But it’s much harder to calculate how deep it is. Ⅰ.阅读理解 语篇解读　这是一篇说明文。文章介绍了“探测海洋有多深”，科学家们已经探测出海洋的宽度，但是对于海洋深度的探索仍然没有定论，而对于海底的研究，也能帮助人们更好地测量海洋。 In 1872，the HMS Challenger，a British Navy ship，set sail to learn about the ocean，including its depth.It carried 181 miles(291 kilometers) of rope to measure the depth of the ocean.During their four-year voyage，the Challenger crew collected samples of rocks，mud and animals from many different areas of the ocean.They also found one of the deepest zones，in the western Pacific，the Mariana Trench which stretches for 1,580 miles(2,542 kilometers). Today scientists know that on average the ocean is 2.3 miles(3.7 kilometers) deep，but many parts are much shallower or deeper.To measure depth，they use sonar，which stands for Sound Navigation And Ranging.A ship sends out pulses of sound energy and measures depth based on how quickly the sound travels back. Ocean scientists study the sea floor because it helps us better measure the ocean.Our planet’s outer layer is made of tectonic plates.The Hawaiian-Emperor Seamount chain，a line of peaks on the ocean floor，was created when a tectonic plate moved over a spot where hot rock welled up from deep inside the Earth.When two tectonic plates move away from each other underwater，new material rises up into Earth’s layer.This process，which creates new ocean floor，is called seafloor spreading.Sometimes super-hot liquids from inside the Earth shoot up through cracks in the ocean floor called hydrothermal vents. Amazing fish，shellfish，tube worms and other life forms live in these zones.Between the creation and destruction of ocean plates，sediments(沉淀物) collect on the sea floor and provide an archive of Earth’s history，the evolution of climate and life that is available nowhere else. 1.Why did the HMS Challenger make the voyage? A.To test navigation. B.To calculate the age of the ocean. C.To explore the ocean. D.To do research into Mariana Trench. √ 细节理解题。根据第二段首句“In 1872，the HMS Challenger，a British Navy ship，set sail to learn about the ocean，including its depth.”可知，英国皇家海军“挑战者号”启航出海的目的是探索海洋。故选C。 解析 2.How do scientists know the depth of the ocean? A.By measuring it with ropes. B.By studying samples of rocks and mud. C.By analyzing the habitats of the animals. D.By studying the returning speed of the sound. √ 细节理解题。根据第三段最后一句“A ship sends out pulses of sound energy and measures depth based on how quickly the sound travels back.”可知，船只发出脉冲声能，进而根据声音回传的速度来测定海洋的深度。故选D。 解析 3.What is the fourth paragraph mainly about? A.Certain changes of the sea floor. B.The layers that make up the Earth. C.The way that a volcano comes into being. D.Some definitions of the seafloor spreading. √ 段落大意题。第四段首句“Ocean scientists study the sea floor because it helps us better measure the ocean.”为该段主题句，后文围绕主题句展开。当海底(构造)板块移动时，地球内部热岩迸发而出，形成海底山，海底格局发生变化，不同地点的深浅度随之而变。研究海底状况有利于更准确地测量大海。故选A。 解析 4.What can be a suitable title for the text? A.How Deep Is the Ocean? B.How Is the Ocean Studied? C.Ocean：An Unknown World D.Nature：A Place for Wildlife √ 标题归纳题。文章首段提出问题，即计算海洋的深度是一件困难的事；第二段讲述英国皇家海军“挑战者号”为此进行的探索；第三段叙述科学家利用声呐测量海洋的深度；第四、五段着重讲了海底发生的地壳变化及生态状况。全文围绕“探测海洋到底有多深”这一主题由浅入深展开。故选A。 解析 B Antarctica is known for being a vast land of ice and snow，a place too cold for most life.Despite this，the continent is slowly starting to turn warm.According to The Guardian，the Antarctic has registered a new high temperature for the first time on record，prompting fears of climate instability in the world’s iciest place. 语篇解读　这是一篇说明文。文章介绍了南极的气温创下历史新高，人们担心这个世界上最寒冷的地方会出现气候不稳定的情况。因此，我们应该尽我们所能帮助拯救我们的星球。 On Feb.9，Brazilian researchers at Seymour Island reported a temperature of 20.75℃ on the icy continent of Antarctica.It was almost a full degree higher than the previous record of 19.8℃，taken on Signy Island(西格尼岛) in January 1982. This record-breaking reading was taken at a monitoring station in the northern part of Antarctica.According to Brazilian soil scientist Carlos Schaefer，the temperature was documented during a 20-year-long research project.The focus of this project is to study the effect that climate change has on the permafrost(永久冻土) within the region. Permafrost is soil that stays frozen for at least two years.Although this is a first record high for Antarctica，Schaefer stressed that “We can’t use this to anticipate climatic changes in the future.It’s simply a signal that something different is happening in that area.” But in fact，the last high temperature reading was in the 19℃ range.These higher temperatures can cause ice and glaciers in Antarctic regions to melt.The Antarctic peninsula(半岛)—the long finger of land that stretches towards Argentina—is most dramatically affected. Scientists saw glaciers that have retreated by more than 100 meters in Discovery Bay where the snow melted in little more than a week，leaving dark exposed rock.This melted ice leads to a rise in sea levels that can threaten the safety of coastal areas.It’s believed to be behind an alarming decline of more than 50 percent in chinstrap penguin(帽带企鹅) colonies，which are dependent on sea ice. Like American writer Ernest Hemingway once said，“The Earth is a fine place and worth fighting for.” We should do everything we can to help save our planet.Otherwise，it may become too hot for us to fix. 5.What did Brazilian researchers report on Feb.9? A.Seymour Island is the warmest region in the Antarctic. B.Antarctica hit a record high temperature of 20.75℃. C.The average temperature of Antarctica ranges from 19.8℃ to 20.75℃. D.Antarctica’s new record temperature is a full degree higher than the previous decade. √ 细节理解题。根据第二段的“On Feb.9，Brazilian researchers at Seymour Island reported a temperature of 20.75℃ on the icy continent of Antarctica.”可知，2月9日，巴西研究人员报告南极洲创下了20.75℃的高温纪录。故选B。 解析 6.What’s the main purpose of the 20-year-long research project? A.To predict possible climatic change in the future. B.To monitor Antarctica’s contributions to world climate change. C.To explain why the permafrost may cause glaciers to melt. D.To examine how the permafrost is influenced by climate change. √ 细节理解题。根据第三段的“...the temperature was documented during a 20-year-long research project.The focus of this project is to study the effect that climate change has on the permafrost(永久冻土) within the region.”可知，这个长达20年的研究项目的主要目的是研究永久冻土是如何受到气候变化的影响的。故选D。 解析 7.What does the underlined word “retreated” probably mean? A.Moved backward. B.Increased in size. C.Covered a certain area. D.Stretched in an opposite direction. √ 词义猜测题。根据画线词上下文可知，南极半岛——延伸到阿根廷的狭长地带——受到了显著影响，该地区积雪融化，露出了岩石，由此可推知，科学家们发现冰川已经退缩了100多米，因此，可猜测画线词意思为“后退”。故选A。 解析 8.What is the main idea of the last paragraph? A.The Earth will be hotter and hotter. B.The high temperature can cause ice in Antarctica to melt. C.People should spare no effort to protect the Earth and the environment. D.A rise in sea levels can threaten the safety of coastal areas. √ 段落大意题。最后一段引用了海明威的名言“地球是一个美好的地方，值得我们为之奋斗”，紧接着提到我们应该尽我们所能帮助拯救我们的星球。由此可知，本段主要内容是倡议人们应该不遗余力地保护地球和环境。故选C。 解析 Insects have an important role as part of the living planet，and they make up four-fifths of all animal species.But what difference do they make to our lives? Ⅱ.七选五 语篇解读　这是一篇说明文。主要介绍了昆虫对我们人类的生活产生的影响。 Insects as a problem 1 We plant crops which some insect species love，and they thrive on them.That’s when we start to call them pests. A.Without them，many crops would fail. B.Many insect species compete with us for food. C.And don’t forget insects can also be eaten by man! D.Many of these have been caused by human activities. E.Sometimes it is joked that this is because they find us tasty. F.Many pests can be controlled by spraying with chemical pesticides. G.In fact，many genetic discoveries couldn’t have been made without it. √ 根据下文“We plant crops which some insect species love，and they thrive on them.”可知，有些昆虫喜欢吃我们种的庄稼。B项“许多昆虫与我们争夺食物”与之呼应。故选B。 解析 Humans have caused some insect species to be moved from one part of the world to another—deliberately or by accident.If the introduced insect species has no natural enemies in their new home，they can become a real problem.A recent UK example is the Harlequin ladybird，which has found its way to Britain and eats other ladybirds. Some insects can sting，bite，or transmit disease to humans. 2 Mosquitoes，for example，gain nourishment by sucking blood，and in the process they can transmit diseases，such as malaria. A.Without them，many crops would fail. B.Many insect species compete with us for food. C.And don’t forget insects can also be eaten by man! D.Many of these have been caused by human activities. E.Sometimes it is joked that this is because they find us tasty. F.Many pests can be controlled by spraying with chemical pesticides. G.In fact，many genetic discoveries couldn’t have been made without it. √ 空格上一句提到昆虫会蜇人、咬人，甚至传播疾病给人类。空格下一句举出具体例子说明昆虫叮咬的原因。E项“有时会有人开玩笑说，这是因为它们觉得我们可口”承上启下。故选E。 解析 Insects as an opportunity Insects are very important as pollinators(传粉者).Bees are perhaps the best example of this. 3 Pollination is needed before many crops and fruits that we eat can be formed. A.Without them，many crops would fail. B.Many insect species compete with us for food. C.And don’t forget insects can also be eaten by man! D.Many of these have been caused by human activities. E.Sometimes it is joked that this is because they find us tasty. F.Many pests can be controlled by spraying with chemical pesticides. G.In fact，many genetic discoveries couldn’t have been made without it. √ 本段第一句说明昆虫的作用。空格下一句为具体作用发挥到人类生活中。故可推断空格处内容应说明这些昆虫的重要性。故选A。 解析 Insects are also useful as models in scientific research.The Fruit Fly is a good example.It breeds rapidly，and can produce very many generations per year in the laboratory，so it is ideal for the study of evolution. 4 A.Without them，many crops would fail. B.Many insect species compete with us for food. C.And don’t forget insects can also be eaten by man! D.Many of these have been caused by human activities. E.Sometimes it is joked that this is because they find us tasty. F.Many pests can be controlled by spraying with chemical pesticides. G.In fact，many genetic discoveries couldn’t have been made without it. √ 该段上文提到昆虫是科学研究的理想选择，并进行了举例说明。G项与上文所说内容一致，总结该段内容。故选G。 解析 Insects can be useful to the gardener too—ladybirds，for example，are the gardeners’ friend because they eat aphids.Hover flies and wasps also hunt and kill other insects for food in the garden.These species are called predators(捕食者). 5 A.Without them，many crops would fail. B.Many insect species compete with us for food. C.And don’t forget insects can also be eaten by man! D.Many of these have been caused by human activities. E.Sometimes it is joked that this is because they find us tasty. F.Many pests can be controlled by spraying with chemical pesticides. G.In fact，many genetic discoveries couldn’t have been made without it. √ 上一段主要讲的是昆虫会吃掉其他的昆虫，说明捕食关系；C项说明人类也会吃掉昆虫，也是一种物种之间的捕食关系，上下文语意连贯。故选C。 解析 Possibly the most helpful and joy-bringing app I’ve added to my phone lately is Merlin，a free bird identification program 1.___________ (create) by the Cornell University Lab of Ornithology. Ⅲ.语法填空 语篇解读　这是一篇说明文。文章主要介绍了一款免费的鸟类识别程序，并介绍了其功能以及听鸟鸣的好处。 created 考查非谓语动词。分析句子结构可知，空处应用非谓语动词，create与逻辑主语a free bird identification program之间构成被动关系，故用过去分词作定语。故填created。 解析 There are many features the app offers，and my favorite is the birdsong listening feature,2.__________ you can turn on your phone’s microphone and hear recorded diverse birdsongs. where 考查定语从句。分析句子结构可知，空处引导非限制性定语从句修饰先行词the birdsong listening feature，关系词在从句中作地点状语，故填where。 解析 Hearing birdsong is a 3. (remind) that we’re not alone in the great outdoors—or in life.Taking a walk outdoors，I never cease to be 4. (pleasant) surprised to encounter far more birds than I thought. I also enjoy hearing different calls show up as 5. same species，evidence that the birds are communicating with each other. reminder 3.考查名词。空处作表语，结合空前的不定冠词a可知，此处应用单数名词reminder。故填reminder。 4.考查副词。修饰形容词surprised应用副词作状语，故填pleasantly。 5.考查冠词。表示“同一”，短语为the same。故填the。 解析 pleasantly the The sense of calm，well-being and pleasure that I feel when I’m hearing birdsong 6._____________(support) by research. is supported 考查动词的时态、语态和主谓一致。主语The sense of calm，well-being and pleasure与谓语support之间构成被动关系，且陈述客观事实用一般现在时的被动语态；主语为单数，be动词也用单数。故填is supported。 解析 One study looked at 26,000 individuals in 26 European countries and found remarkably 7. (high) life-satisfaction among those who lived near diverse bird habitats. higher 考查形容词的比较级。此处将住在各种鸟类栖息地附近的人的生活满意度和没有住在各种鸟类栖息地附近的人的生活满意度相比较，high应用比较级形式。故填higher。 解析 A fascinating finding was that 8. (see) 10 percent more bird species generated similar satisfaction to comparable increase in income. So，when you take a walk outdoors or go for a hike,9. (listen) for the birds that share your space. 8.考查非谓语动词。空处作从句的主语，see应用动名词形式。故填seeing。 9.考查动词。此处主句为肯定祈使句，句首动词用原形。故填listen。 解析 seeing listen Perhaps you can be inspired by this Chinese proverb(谚语): “Keep a green tree in your heart,10. perhaps a singing bird will come.” and 考查连词。分析句子可知，此处为“祈使句＋and＋陈述句”结构，祈使句与后面陈述句之间是顺承关系，应用并列连词and连接。故填and。 解析 返 回 本课结束 $