练案22 选择性必修第二册 Unit 1 Science and Scientists-【衡中学案】2026年高考英语一轮总复习练案（人教版）

练案[22] 选择性必修第二册UNIT1 SCIENCE AND SCIENTISTS I.阅读理解 C.The history of time marking. A D.The final fate of the universe. (2025·安徽六校教育研究会入学测试)3.What do the four talks have in common? Big Thinkers Series A.They are all aimed at science lovers. The 2024 Big Thinkers series from New Scientist B.They are all concerned with gravity. events features four online talks,covering a wide range of C.They will all be given by bestselling authors. topics by world-class scientist speakers and experts.If you D.They will all be given by excellent physicists. are curious about your planet or your universe,then this B series is your place to hear the latest research. (2025·临沂一模) Save 20 off the standard ticket price by purchasing Humans work hard to avoid viruses.Sick people are a series ticket to all four talks in the Big Thinkers series isolated,diseased animals are killed and fields of infected (available on-demand)or purchase single tickets for just crops are fired up.Reviving (an ancient virus 13 per lecture(available by early booking). would surely be a disaster. Reality +From the Matrix to the Metaverse But a new study led by Fiddaman from University of with David Chalmers Oxford,challenges this conventional wisdom.It shows In this talk,philosopher David Chalmers argues that how the revival of an ancient virus can unlock the secrets Metaverse-style virtual worlds experienced through of its evolution. headsets are also genuine and meaningful realities and we The virus in the study is Marek's disease virus can live a meaningful life in VR. (MDV),killing more than 90%of chickens.Yet when it What we don't know about gravity with Claudia was discovered in 1907,MDV rarely caused death. de Rham Dr.Fiddaman wondered whether its new-found We are all familiar with the concept of gravity.In virulence (was a result of large structural this talk,Professor Claudia de Rham will explore how changes.To find out,he and his colleagues got their much we actually know about gravity and how much more hands on nearly 1,000 chicken bones from ancient times there is left to uncover. across Europe and Asia,some of them up to 2,000 years A Brief History of Timekeeping with Chad Orzel old.Sections of DNA from these remains were mapped From Stonehenge to atomic clocks,here is the onto the ones of today's virus. 5,000-year history of how science is used to mark time. As the authors pieced together the sets of genes of Chad Orzel,the internationally bestselling author of How ancient MDV,however,they noticed that the genes were to Teach Quantum Physics to Your Dog,offers us a witty arranged identically to those in modern species.It journey through scientific theories and quirky (suggests that the increased virulence resulted not from historical details. large structural changes,but from point mutations Physics at the End of the Universe with Katie Mack).In particular,changes had occurred in the The Big Bang theory tells the story of the beginning arrangement of a gene called MEQ,which has an of the universe for the last 13.8 billion years.But how essential role in tumor()formation. does the story end?Join astrophysicist Katie Mack as she This discovery suggests that the ancient MDV may shares what modern astrophysics tells us about the final i not have been able to cause tumors.To test this fate of the universe. assumption,Dr.Fiddaman followed up his study with a 1.How much does a series ticket cost? daring experiment.He made the ancient form of the MEQ A.￡13.B.￡20.C.￡30. D.￡32. gene and shoot it into living chicken cells.It did not turn 2.What will Chad Orzel lecture in? on any of the genes associated with tumor formation.In A.The genuine reality. comparison,a modern MEQ gene quickly showed its B.The secrets of gravity. tendency to cause tumors. —546— By combining ancient and modern genetic biology,seaweed can have a lower carbon footprint than fossil fuels the methods pioneered in the paper reveal how,and more do,but there has been a recent negative view against importantly why,any virus mutates.That could help them.This is partly because so many crops now go into scientists tackle other viruses that pull on the purse energy production rather than food;biofuels take up more strings of farmers-by designing new vaccines,for than 100 million acres of the world's agricultural land. instance-or even to work out how to prevent another Duckweed,common on every continent but global pandemic. Antarctica,is among the world's most productive plants, 4.What is widely acknowledged about the revival of an and the researchers suppose it could be a game-changing ancient virus? renewable energy source for three key reasons.First,it A.It is a challenging task. grows readily in water,so it wouldn't compete with food B.It reveals the virus evolution. crops for agricultural land.Second,duckweed can grow C.It means a disaster for humans. fast in agricultural pollution released into the water. D.It helps people fight diseases. Third,Shanklin and his team found a way to avoid a 5.What caused the virulence change of MDV? major biotechnological barrier.For the new study,the A.Point mutations in MEQ. researchers added an oil-producing gene,"turning it on B.The occurrence of a new gene like a light switch"by introducing a particular molecule C.The reproduction of the ancient MDV (分子)only when the plant had finished growing.. D.Large structural changes in modern species. Shanklin says,“If it replicates(自我复制)in other 6.How did Dr.Fiddaman test the assumption? species-and there's no reason to think that it would A.By investigating a typical case. not-this can solve one of our biggest issues,which is B.By conducting a field survey. how we can make more oil in more plants without C.By studying the related theories. negatively affecting growth." D.By doing a comparative experiment. To expand production to industrial levels,scientists 7.What can we infer from the last paragraph? will need to design and produce large-scale bases for A.Viruses weaken gradually when they mutate. growing engineered plants and obtaining oil,which will B.The finding throws light on handling other viruses. be a challenge,because duckweed is a non-mainstream C.A global pandemic requires a world effort to end it.crop without much existing infrastructure() D.Farmers will face more complex challenges than8.What can people get directly from duckweed? before. A.Plant oil. B.Stable biodiesel. c C.Sustainable water. D.Natural heat. (2025·福建质检)9.What does paragraph4 mainly convey? Common water plants could provide a green energy A.Options for renewable energy. source.Scientists have figured out how to get large B.Reasons for engineering genes. amounts of oil from duckweed,one of nature's fastest-! C.The potential of revolutionary energy sources. growing water plants.Transferring such plant oil into D.The approach to avoiding agricultural pollution. biodiesel (for transportation and heating 10.What is the decisive factor in mass-producing the could be a big part of a more sustainable future. plant? In a new study,researchers genetically engineered A.Industrial levels. B.Unique design. duckweed plants to produce seven times more oil per acre C.Academic research D.Basic facilities than soybeans.John Shanklin,a biochemist says,further 11.What would be the best title for the text? research could double the engineered duckweed's oil A.Duckweed Power output in the next few years. B.Duckweed Production Unlike fossil fuels,which form underground, C.Genetic Engineering biofuels can be refreshed faster than they are used.Fuels D.Genetic Testing made from new and used vegetable oils,animal fat and —547 Ⅱ.七选五 (2024·湖北省八市联考) The reasons skiers and snowboarders wear goggles (or glasses might seem a little obvious,especially if you've ever hit the slopes yourself.Sunlight reflected off the snow can make it hard to see,and UV (rays can even damage your eyesight.Special colored lenses(H)also create contrast,so your whole path won't look like one flat expanse of whiteness.1. Olympic speed skaters,meanwhile,are racing inside on smooth ice.2. According to NBC Olympics,glasses can increase visibility on indoor tracks,too.3. And while the ice may look smooth from a distance,those sharp blades can kick up ice chips that could pose problems if they end up in your eyes.In the event of a crash,shatter-proof glasses also protect skaters'eyes from errant blades. 4.Short-track speed skaters(who race around a roughly 111-meter track)can go as fast as 30 miles per hour or more,and long-track speed skaters(whose track is 400 meters long)sometimes hit about 35 miles per hour. The wind resistance generated by such speed一in a chilly arena(圆形运动场；竞技场；场地)一is enough to make any skater's eyes start streaming with tears.Picture leaning your head out of the window of a car that's going around 35 miles per hour on a cold day:You'd probably want to be wearing glasses,too. That said,glasses aren't a requirement.5.Belgium's Stijn Desmet,for example,has raced in Beijing 2022 Olympic Winter Games without eyewear,as has China's Zhang Chutong. A.How do they wear glasses? B.So why do they wear glasses? C.Some skiers are afraid of the sunlight. D.Some skaters'lenses are colored to help with that. E.You'll occasionally see speed skaters with uncovered visages. F.Not to mention that eyewear protects your eyes from any snow you displace. G.But the biggest reason speed skaters opt for eyewear just might be their speed. ..-... Ⅲ.语法填空 (2024·八省八市高三第一次学业质评) The Sanya Nanfan ()Seed Breeding()Base,located in south China's Hainan Province,plays a vital role as a seed centre in China.1.(unique)blessed with nature's gifts and a wealth of the country's resources,it serves as the dedicated ground 2.skilled agricultural experts contribute to feeding our nation and addressing global hunger. Dr.Xiao Feng stands at the forefront of agricultural innovation in Nanfan.Jokingly 3.(refer)to himself as a"mudskipper",he is often spotted with rolled-up trouser legs knee-deep in the 4.(mud)fields.Dr.Xiao, along with other Nanfan researchers,5.(commit)wholeheartedly to improving grain production,ensuring that people's dinner tables are filled. "Life can be compared to a seed,"remarks Dr.Xiao."Occasionally,it may either not grow as expected 6. remain inactive.Nevertheless,hope and opportunity persist.The seed of life will always manage 7.(emerge)through the ground.” The term"Nanfan"itself implies to the practice of transplanting summertime crops from northern latitudes to Hainan during its winter.This makes for an 8.(extend)of growing seasons.Shortening the breeding cycle 9.half or more,Nanfan accelerates the breeding process. Hope is a humble seed,when10.(plant)in fertile ground,it transfigures(美化…的s外表)into new life bearing fruits of change.The researchers at Nanfan are those seeds of hope. —548- Ⅳ.应用文写作 Dear judges and fellow students, (2025·贵阳市摸底) 你校英语社将举办以“无人驾驶出租车 (driverless taxis)”为话题的演讲比赛，请你就此写 篇短文参赛，内容包括： （1)无人驾驶出租车的优势与不足； (2)你的看法。 注意： 1.可以适当增加细节，以使行文连贯； 2.词数80左右； 3.短文开头和结尾已给出，不计入总词数。 Thanks for your listening 练案[23] 选择性必修第二册 UNIT2 BRIDGING CULTURES I.阅读理解 predicted the unselfishness of heart I would encounter, and it was moving. (2025·石家庄质检) As we were waiting for the car to pick us up,Nadia I didn't go to Santiago,Chile to look for friendship.showed me her plants that are well-maintained.I could see In fact,Chile was not even on my wish list. that despite the hard conditions she was passionate about As a mid-life crisis woman,I got a chance to study life.She made me long to be a stronger person.She showed abroad.I only wanted to learn about global business,taste me that poverty was external,but happiness was internal.I South American cuisine,and check "study abroad"off was seeking to give 100 percent for a well-intentioned cause, my wish list. but I left receiving 200 percent from her. On the fifth day,I joined a group for a neighborhood1.What was the author's initial purpose of going to Chile? work project aided by the anti-poverty()organization. Our tasks were to build a water tower and paint the A.To find new friends while traveling. community center.Upon arrival,I couldn't believe my eyes. B.To participate in an anti-poverty project. It was like a scene out of a horrible film.That moment C.To fulfill the desire to study abroad. redefined poverty for me because I had never seen such D.To gain a graduate certificate in business. terrible living conditions.As advised,I showed no signs of 2.What did the author do after seeing the living conditions the emotional battle going on inside me. in the neighborhood? Just as I was about to start work on painting,a A.She decided to relieve poverty. request came through for a few volunteers to help Nadia, B.She kept her emotions well hidden. a local resident who volunteered to cook for us.I raised C.She comforted the shocked volunteers. my hand to help because I wanted to spend time with the D.She refused to continue the present task people of the neighborhood despite my shortage of Spanish 3.Why did the author volunteer to work with Nadia? speaking skills. A.She felt very sympathetic toward Nadia. Nadia had a sincere smile but was not overly B.She longed to interact with the local residents friendly.Even without speaking each other's language,we C.She wanted to improve her Spanish speaking skills. started to learn about one another.We chatted about our D.She preferred cooking to painting the community children,our upbringing,shared pictures of our family, center. struggled to instruct each other to communicate in the4.What did the author learn from Nadia? other's language,and laughed many times. A.True friends are never apart in heart. After we fed everybody and the dishes were washed, B.Happiness is defined by a positive attitude. my day was over.But I found myself hesitant to leave.It C.Language is not a barrier to great connections. was as if I had known her my entire life.I had not D.Unselfishness is putting others before ourselves. -5498.D推理判断题。根据最后一段中的“Traditional tomatoes and being watered by the sun.”可知，本段主要描述的是马克·科温 wild species have not had the essence of tomatoes sucked out of them 顿在他的城市农场的一个角落，呼吸着清晨的新鲜空气。接下 by selective growing-so shop for those or grow them yourself.They 来的描述共同构成了清晨在这个集体农场中的典型景象。B项 may not look like the Disney version of a perfect fruit,but they (这是集体农场的一个典型清晨场景。)衔接上下文，符合语境 actually taste like tomatoes.”可知，作者推荐读者买传统西红柿或 且B项中的“morning scene'”与空前的“in the early moming”相呼 亲自种植，由此可推知，作者是喜欢传统西红柿的。故选D 应。故选B。 0 语篇导读：本文主要讲述了湖北省恩施州茅田坪村的李静！2，C 根据空后的“‘It was dirty,’he said.‘There were always 工作后决定回到村里，利用当地得天独厚的地理和气候条件，带领 vacant lots.but they had always been maintained for children to play 全村人民一起发展土豆种植来提高收入的故事 on. ,”可知，在2007年，科温顿失去了工作并回到了他童年的街 1 根据下文“But now...wide well-lit roads”可知，此处是指村里 道，可是街道很脏，空地上堆满了垃圾。C项（他看到了空置、被 原来的道路很窄。narrow意为“狭窄的”，与wide相对应，符合 遗弃的地上堆积如山的垃圾。)衔接上下文，符合语境。 故选C。 语境。shot短的：clean干净的：rough粗糙的。故选C。 3.A 根据下段首句可知，科温顿开始种植社区花园，说明此空应 2.B 根据上文“But now,our village boasts modern,wel- 是提出了一个不同的解决方案，且与种植东西有关。A项[但是 constructed homes ,wide well-lit roads”可知，村里已经今非昔比 如果他种植了东西，人们可能就不会（再往上面扔垃圾）了。]既 环境和人们的生活条件都变好了，由此可推知，此处是指村里每 与前一句形成对比，又引起了下文内容，符合语境。故选A。 家都至少有一辆小轿车。at least意为“至少”，符合语境。in 14F 根据设空处前后两句“Covington started with a small store即将发生；on board在船上；as regards关于。故选B。 community garden.""One mother sent three children to help him 3.D,根据下文“She studied hotel management and tourism at Wuhan build a larger garden..”可知，科温顿的项目迅速引起了周围人 University of Science and Technology.”可知，此处是指李静离开 的兴趣和参与意愿。E项（几乎立刻就有邻居开始请求参与。） 村子去上大学，即接受高等教育。education意为“教育”，符合语 衔接上下文，符合语境。故选E。 境。demand需求；yield产量；salary工资。故选D。 5.G 根据下文“On one corner.· On another. ,”可知，本段应该 44 根据上文“After graduation”和下文“in the hotel industry”及 描述的是含有不同区域的一个地，点，由本段最后一句可知，这个 常识可知，此处是指李静在大学毕业后在酒店行业获得一份工 地点已经升华成一个被社区人们共享的场所。G项（从清理垃 作。job意为“工作”，符合语境。urge冲动：license许可证： 圾开始的项目已经变成了一个社区场所。)符合语境，且能概括 inspiration启发灵感的人（或事物）。故选A。 本段主旨。故选G。 5.B 根据上文“After graduation,she gained a(n) 4 in the hotel V.【写作提示】 industry.”及下文“she made the life-altering decision last year to return to her village”可知，上下文之间为转折关系。 however意 故事人物 比尔、贝基、一头小牛 为“然而”，符合语境。therefore因此；moreover而且；likewise同 样地。故选B。 贝基只喜欢数字，却对别的事物一点都不感兴趣，而 6.A根据上文“I want to be an integral part of my hometown's 她的爸爸比尔希望她能喜欢动物以及帮他做点衣 development'”及语境可推知，此处是指李静想要参与家乡的建 故事梗概 活 于是，比尔用一个比赛来吸引她，并建议用她的 设，带来实际的变化以改善乡亲们的生活。bring about意为“弓 数学才能去挑战照顾一头小牛。于是贝基开始照顾 起；导致”，符合语境。concentrate on集中注意力于：fall behind 小牛。冬天的一个早晨，暴风雪来临，贝基照顾的小 落在…后面；adapt to适应。故选A。 牛被发现奄奄一息地躺在雪地里。 7.D 根据上文“I want to be an integral part of my hometown's development”和空后的“realizing my own personal value”及常识可 第一段：1.描写父女二人帮助奄奄一息的小牛；2.小 知，此处是指李静想在参与家乡建设的过程中实现自己的人生 续写要点 牛在贝基的照顾下茁壮成长。 价值。while意为“在…的过程中”，符合语境。故选D。 第二段：1.描写比赛的盛况：2.比赛的结果及收获。 8.C根据下文“relies on agriculture and most of its farmers grow potatoes”可知，此处是指恩施的经济收人主要是依靠农业和农 参考范文 They rushed the calf into the stall.Bill quickly started a fire while 产品。heavily意为“在很大程度上” ,符合语境 boldly大胆自 信地；attractively吸引人地；excellently优秀地。故选Co Becky quickly fetched blankets and wrapped her,rubbing and holding 9.D根据下文“This makes it an ideal setting for cultivating her body gently."Dad,she is moving!"Becky gave an excited shout. potatoes”可知，此处指李静打算展示乡亲们种植的农产品。 Then she fed a few drops of warm milk in the calfs mouth and the tiny cultivate意为“种植；耕作”，符合语境。applaud鼓掌；称赞； jaws moved slightly.From then on,the first thing Becky did after distribute分发；charge指控。故选D。 school was to go to the stall to feed her.Day by day,Tag 333 became a l0.B根据下文“with a humid climate and over70 percent forest strong calf with huge brown eyes,and a coat that shone like silk. coverage”和“This makes it an ideal setting for cultivating “She'I be the champion in the competition！”Becky thought potatoes'”可知，此处是指李静的家乡有得天独厚的地理和气候 Time flying by,the judging day finally arrived.Flags,musicians shouting children and bawling cattle added to the excitement at the 优势。be blessed with意为“赋有…；享有… be satisfied wit对满意，he angry wi对.…生有合治克。 i county fair.The judge began checking each calf carefully,and then t:be bored with对…厌烦。故选B。 questioned its young owner,who tried hard to describe how good their l1.A根据上文“You can find selenium-rich potatoes here”可知，此 calves looked like.Becky's turn came last.She recited all the numbers 处是指李静家乡的土壤含有很高的硒元素。hgh意为“（含量） since Tag 333's birth she had clearly memorized.Pointing to Tag 333, 高的”，符合语境。little小的；novel新奇的；odd反常的。故 i the judge announced,"Ladies and gentlemen,my choice for first place is this one!"Holding the blue ribbon,Becky realized the experience of 先A 12.D根据空前的trace和常识可知，硒是一种微量元素。element love and care is beyond what numbers can convey 意为“元素”，符合语境。lifestyle生活方式；concept概念；facto 练案[22] 因素。故选D。 13.B根据下文“sales specialists'”可知，此处是指土豆经理职位类 语篇导读：本文介绍了四个与科学有关的讲座 似于市场营销和销售专家。marketing意为“市场营销”，符合 1.D细节理解题。题目问“一个系列的票价是多少？”。根据第 语境。planting种植；baking烘焙；gardening园艺。故选B 二段中t的“Save￡20 off the standard ticket price by purchasing a 14.C根据上文“There's even a role of a potato asses sor”和下文 series ticket...or purchase single tickets for just 13 per lecture “best-looking potatoes for sale”可知，此处是指土豆鉴定师挑选 available by early booking).”可知，购买Big Thinkers系列中四 卖相好的土豆进行出售。select意为“挑选”，符合语境。load 场讲座的系列门票可以在标准票价的基础上节省20英磅，而每 装人；sow播种；imagine想象。故选C。 场讲座的标准单人票票价是13英镑。因此买一个系列的票价 l5.B根据上文“In the future,Li hopes to continue helping her 是4×13-20=32（英镑）。故选D。 fellow villagers raise their potato production and increase their" 2.C 细节理解题。根据题干中的Chad Orzel可以将答案定位在 常识可知，提升土豆产量可以增加乡亲们的经济收入。income 第五段。根据该段中的“From Stonehenge to atomic clocks,her6 意为“收人” ,符合语境。celebrity名誉；acknowledgement承认； is the 5,000-year history of how science is used to mark time." capacity容量。故选B。 知，Chad Orzel讲的是人们是如何利用科学标记时间的，故选C Ⅲ. 语篇导读：本文主要讲述了马克·科温顿变废为宝、建农3.A 细节理解题。文章第一段总述Big Thinkers系列的四个线上 场助邻的故事，他所在的社区由此焕发新生。 讲座活动，第二段介绍了票价信息，下面四段分别介绍四个讲座 l.B根据上文“..breathing the fresh air in the early morning.”及 的相关信息。所以根据第一段中的“If you are curious about your 下文“Early in the day,the green crops...bathed in gold,asif planet or your universe,then this series is your place to hear the 672 latest research(如果您对您的星球或宇宙感到好奇，那么这个系：Ⅲ 语篇导读：本文是一篇说明文。文章主要介绍了南繁种子 列是您聆听最新研究的地方。).”可知，这四个讲座的共同之处繁殖中心的情况及其主要贡献 是它们都是针对科学爱好者的。选项中的“science lovers”是对 :1.Uniquely考查副词。句意：拥有得天独厚的自然恩赐和丰富的 文中的“you are curious about your planet or your universe''的同义 国家资源，在这片土地上，农业专家就如何处理全球饥饿问题贡 转换。故选A。 献力量。空处修饰blessed,应用副词形式。故填Uniquely。 2.where 考查定语从句。句意见上一题解析。先行词为ground, 语篇导读：本文主要介绍了一项由牛津大学的菲达曼博士领 引导词在定语从句中充当地点状语。故填where 导的新研究挑战了复活古代病毒造成灾难的传统观，点，表明通过 3.referring 考查非谓语动词。句意：戏称自己为“弹涂鱼”，他经 复活古代马雷克病毒可以揭示其进化的秘密。 常被看到卷着裤腿站在泥泞的田地里。.ing表主动。refer和 4.C细节理解题。根据第一段中的“Humans work hard to avoid 主句主语he之间是主动关系。故填referring。 viruses.”和“Reviving an ancient virus would surely be a disaster 4.muddy 考查形容词。句意见上一题解析。空处修饰名词ld, 可知，人类努力避免病毒，复活古代病毒可能是 场灾难，即人 应用形容词形式。故填mudd山 们普遍认为复活古代病毒对人类来说是一场灾难。故选C。 5.is committed/,commits考查动词的时态。句意：肖博士和其他南 5.A细节理解题。根据文章倒数第三段中的“It suggests that the 繁的研究者们一起全身心致力于提升粮食产量，确保人们粮食 increased virulence resulted not from large structural changes,but 充足。从第二段开始介绍Dr.Xiao都使用一般现在时。故填is from point mutations...a gene called MEQ. ”可知，增加的毒力 committed/commits。 并非来自大的结构变化，而是来自MEQ基因排列的点突变。 因 、6 0r 考查连词。句意：生活就像种子一样，或者有时不像预期的 此MDV的毒力变化是由MEO的点突变引起的。故选A 6.D细节理解题。根据文章倒数第二段中的“To test this 那样生长，或者有时不活跃。either...or.·.或者…或者…c assumption...In comparison,a modern MEQ gene quickly showed 故填or。 7.to emerge考查非谓语动词。句意：生命的种子总能从地里冒 its tende e to ca tumors..”可知，菲达曼博士将古代的MEQ基 因引入活鸡细胞以验证假设，并将其与现代MEQ基因导致肿瘤 出来。manage to do sth.完成某事（困难的事）。故填to emerge。 的趋势相比较。这是一种比较实验的方法。故选D。 8.extension 考查名词。句意：这样可以延长生长季节。冠词后面 7.B推理判断题。根据最后一段中的“That could help scientists 应用名词形式。故填extension 9 by tackle other viruses that pull on the purse strings of farmers-by 考查介词。句意：使繁殖周期缩短一半或更多…by表示 designing new vaccines,for instance-or even to work out how to 程度或者数量。故填by。 prevent another global pandemic..”可知，这项发现有助于处理其 i10.planted 考查非谓语动词。句意：当希望被种植在肥沃的土壤 他病毒。故选B。 里时，融入新的生命，结出变化之果。.-ed作状语。plant和主 句主语hope之间是被动关系。故填planted, 语篇导读：本文介绍了科学家发现可以通过基因改造来增加 V.参考范文： 浮萍的油产量，将其作为一种可再生能源，用于生产生物柴油，实 Dear judges and fellow students. 现绿色可持续发展 Good morning!Today,I want to talk about the advantages and 8.A细节理解题。根据第一段中的“Scientists have figured out disadvantages of driverless taxis how to get large amounts of oil from duckweed”及“Transferring such On the positive side,these vehicles can reduce human error,save plant oil into biodiesel(生物柴油)”可知，从浮萍中直接获得的是 time and decrease traffic accidents.They are also environmentally 植物油。故选A。 friendly thanks to their intelligent control systems.However,safety 9.C段落大意题。根据第四段中的“it could be a game-changing concerns arise as technology can fail or be hacked.Additionally,job renewable energy source for three key reasons'”可知，本段主要解释 displacement for drivers is a significant issue. 浮萍成为颠覆性的可再生能源的三个原因，这三个原因促使其 In my view,driverless taxis are a step forward but must be 具有巨大的发展潜力。故洗C。 managed carefully to reduce risks and protect employment.We should I0.D细节理解题。根据最后一段“To expand production to:balance innovation with human welfare industrial levels,scientists will need to design and produce large- Thanks for your listening scale bases...a challenge,because duckweed is a non-mainstream 练案[23] crop without much existing infrastructure, ”可知，科学家们面临最 大的挑战在于缺少现有的基础设施支持。故选D。 语篇导读：本文讲述了作者在智利留学时，因社区扶贫工作结 11.A 主旨大意题。文章主要介绍可通过基因工程增加浮萍的油 识了当地居民纳迪娅，纳迪娅积极的生活态度激励了遭遇中年危 产量并使其成为可再生能源，A项突出了浮萍作为能源的概 机的作者，使其领悟到幸福的真谛的故事 念，其他选项只是文章提到的背景内容或补充信息。故选A。 Ⅱ. :1.C细节理解题。根据第二段中的“I only wanted to learn about 语篇导读：本文是一篇说明文。从科学的角度解释了速滑 运动员佩戴眼镜的原因。 global business,taste South American cuisine,and check study 1.F考查语境推断。根据上文可知，本段介绍了滑雪者佩戴护目 abroad'off my wish list.”可知，作者起初去智利是想了解全球商 镜或眼镜的原因，本句为本段最后一句，应承接上文继续说明原 务，品尝南美美食，实现“出国留学”的愿望。故选C。 因。故F项（更不用说眼镜防止飞溅的雪跑进你的眼睛里了。）符合 细节理解题。根据第三段中的“I showed no signs of th( 语境。故选F emotional battle going on inside me”可知，在看到社区恶劣的生有 2.B考查语境&复现推断。根据上文“Olympic speed skaters 条件后，作者没有表现出内心的情绪波动，即她隐藏了自己的情 meanwhile,are racing inside on smooth ice.”可知，室内比赛的速 绪。故选B。 滑选手也要佩戴眼镜，且由下一段中的“According to NBC !3.B细节理解题。根据第四段中的“because I wanted to spend Olympics,glasses can increase visibility on indoor tracks,too. ”可 time with the people of the neighborhood despite my shortage of 知，下一段内容对其进行了解释，由此可知，本句为过渡句，应提 Spanish speaking skills'"可知，作者想去帮助纳迪娅做饭，是因为 出他们为什么要佩戴眼镜的问题。故B项（为什么他们要佩戴 她想花时间接触社区居民。故选B。 眼镜呢？)符合语境。B项中的glasses为原词复现。 故选B。 4.B推理判断题。根据最后一段中的“I could see that despite the 3.D考查语境推断。根据设空处前一句可知，佩戴眼镜也可以增 hard conditions she was passionate about life.”及“She showed me 强在室内冰场的可视度，本句应继续解释上文中的内容，说明戴 that poverty was external,but happiness was internal...I left 眼镜是为了看得更清楚。故D项（为了看得更清楚，一些速滑选 receiving2O0 percent from her..”可知，尽管条件艰苦，纳迪娅依然 手的镜片会进行着色。)符合语境。故选D 对生活充满激情，因此作者被这种积极的生活态度所感染，认识 4.G 考查语境&复现推断。根据下文“Short--track speed 到幸福和快乐在于内心的积极态度。故选B。 skaters...long-track speed skaters... ”以及“Picture leaning your B head out of the window of a car that's going around 35 miles per hour 语篇导读：本文主要讲述了佩普读完高中后放弃了学业，接管 on a cold day'”可知，本段主要说明，速滑时速度过快、风阻过强 了家里的生意。后来他在6岁时成功申请进入大学学习，秉持着 所以运动员需要戴眼镜来保护眼睛。故G项（但是速滑选手选 劣势也可以变成优势的观念以及乐观精神，他克服了在大学里的 择佩戴眼镜最主要的原因可能就是他们的速度。)符合语境。G;种种不适应 项中的speed为原词复现。故选G。 5.A细节理解题。根据第一段中的"It was only when visiting the 5.E考查语境推断。根据上文中的“glasses aren't a requirement” classrooms and passages of mainland universities with his two 以及下文“Belgium's Stijn Desmet... without evewe s has teenage daughters that he suddenly felt himself at home among the China's Zhang Chutong."可知，下文的例子说明有选手不佩戴眼 books and atmosphere of learning.”可知，佩普在书籍和学习的氛 镜的情况。故E项（你偶尔会看到不戴眼镜的速滑选手。）符合 围中感到舒适自在。故选A。 语境。故选E。 ;6.B细节理解题。根据第三段中的“It wasn't until a year later that 673