UNIT 3 Section Ⅲ Learning About Language-【创新教程】2025-2026学年高中英语选择性必修第三册五维课堂课时作业word（人教版）

Ⅰ.阅读理解 Over a hundred years ago in 1911, something strange was found in the glaciers of Antarctica. Crilffith Taylor－an Australian geologist, had discovered a blood red stream pouring out of the ice cascades (瀑布) of Talor Glacier. Popularly known as the Blood Falls，scientists had not been able to find the reason behind the blood red liquid flowing through the ice until recently. The mystery of the Blood Falls had finally been solved. When these falls were first discovered, scientists had believed that the red colour came from a large amount of red algae (海藻) concentrated in the water. Red algae contain a pigment (色素) which reflects red light, making the algae appear red. This theory made sense，until it was later found that algae do not play a part in the red colour of the flowing liquid at all. What really causes Talor Glacier's water to appear blood red is the presence of iron oxide in the liquid. The waters of the Blood Falls are rich in salt and iron content, and when this water comes in contact with the air, it turns red—just like rust! The water in these falls is often referred to as “brine”by scientists because of the high salt content in the water. This reasoning behind the red colour of the falls was found back in 2003. However, the entire mystery had not yet been solved. How is it then, that the Blood Falls are not frozen? Researchers at the University of Colorado and University of Alaska found that inside the glacier, there is a network of channels and reservoirs that moves the water around. Salt water has a lower freezing temperature. In addition, when any substance undergoes a change in state, it gives off heat. Therefore, the brine actually warms itself up while it's freezing！How this works is that when the brine is flowing through the Talor Glacier, some of it does freeze. As a result of changing state from liquid to ice, the brine gives off heat. This heat is enough to keep the rest of the brine in liquid form, which is why it flows out of the glacier. Incredible new chemistry facts found, and mystery solved! 1．According to the text, the red algae theory was one considered　________　. A．ridiculous　　　 B．reasonable C．impractical D．complex 2．Why does the Blood Falls look red in colour? A．There is too much salt and iron in its water. B．Its liquid is rich in red algae. C．The flowing liquid reflects red sunlight. D．The air is thin and rare in Antarctica. 3．What is the main reason for the Blood Falls' not freezing? A．The water continued flowing constantly. B．There is too much salt in the water. C．The brine gives off heat while freezing. D．Temperatures aren't high enough for flowing water. 4．What is the passage mainly about? A．The discovery of the blood glacier. B．The birth of the Talor Glacier. C．The flowing red water in Antarctica. D．The mystery of the Blood Falls. [语篇解读]　1911年，澳大利亚地质学家在南极洲的冰川中发现了奇怪的景象——血瀑布。最近，血瀑布的秘密终于被揭开了：瀑布的水中富含盐和铁，当水接触空气时，就会像铁锈一样变红；水中盐分很高，以至于瀑布不结冰。 1．B　[推理判断题。根据第三段第一句“This theory made sense，until it was later found that algae do not play a part in the red colour of the flowing liquid at all”可知，这个理论曾被认为是有道理的，直到后来才发现海藻在血瀑布中没有起作用。由此判断B项正确，make sense有道理，讲得通。] 2．A　[细节理解题。根据第三段的第三句可知，是因为富含盐分和铁，当瀑布的水接触空气时，就会像铁锈一样变红。] 3．C　[细节理解题。根据第五段最后两句可知，当液体结冰时，盐水释放出热量。这种热量足以使其余的盐水保持液态，这就是它不结冰的原因。] 4．D　[主旨大意题。通读全文可知，1911年澳大利亚地质学家在南极洲的冰川中发现了血瀑布。最近，血瀑布的秘密终于被揭开了。D项“血瀑布之谜”能概括文章的内容，体现文章的主旨。] Ⅱ.阅读填句 Solutions to Climate Change There are personal lifestyle changes that you can make and that, to some extent, can help reduce your carbon impact. Not all are right for everybody. But applying just a few of them could make a difference. Move closer to work. Transportation is one of the leading sources of greenhouse gas emissions.　__1__　One way to dramatically cut transportation fuel needs is to move closer to work, use mass transportation, or switch to walking, cycling or some other modes of transport that does not require anything other than human energy. Consume less. 2__　Whether by quitting an automobile or employing a reusable grocery sack, cutting back on consumption results in fewer fossil fuels being burned to extract, produce and ship products around the globe. 3__　 A potentially simpler and even bigger effect can be produced by doing more with less. Citizens of many developed countries are energy­wasters, whether by speeding in a gas­wasting vehicle or leaving the lights on when not in a room. Similarly，employing more efficient refrigerators, air conditioners and other appliances can cut electricity bills.　__4__　You can turn the lights or your computers off when you leave the office. Stop cutting down trees. When purchasing wood products, such as furniture or flooring, buy used goods or, failing that，wood proved officially to have been sustainably harvested. The Amazon rainforest and other forests are more than the lung of the earth.　__5__　 A．Be energy efficient. B．Use few electrical appliances. C．But it doesn't have to be that way. D．Such efforts can also be usefully employed at work. E．They may also be humans' short­term hope for limiting climate change. F．The easiest way to cut back on greenhouse gas emissions is simply to buy less stuff. G．Citizens spend more money on electricity to power devices when they're off than when they're on. [语篇解读]　本文是一篇说明文。文章介绍了一些我们在日常生活中可以采取的简单易行的环保措施。这些措施看似微小，却会为应对气候变化贡献力量。 1．C　[上一句提到交通运输是温室气体排放物的主要来源之一。C项紧承上文，点明情况不一定非得那样，同时引出了下一句介绍的能帮助我们减少这类温室气体排放物的措施。] 2．F　[该空对应的措施是减少消费。F项点明减少温室气体排放物的最简单的方法是少购物，符合本段的语境。] 3．A　[该空是本段的小标题，本段主要建议我们有效利用能源，尽可能减少对能源的浪费，用更少的能源做更多的事，故用A项概括本段的主旨。] 4．D　[上一句介绍了在生活中如何减少对能源的浪费，该空后则介绍了在办公室里如何减少对能源的浪费。D项恰好能用来承上启下。] 5．E　[上一句提到亚马孙雨林及其他森林不仅仅是地球的肺。E项紧承上文，点出它们可能还是人类在短期内控制气候变化的希望。] Ⅲ.完形填空 Every year about 40,000 people attempt to climb Kilimanjaro, the highest mountain in Africa. They 　__1__　 with them lots of waste. The　__2__　might damage the beauty of the place. The glaciers (冰川) are disappearing, changing the　__3__　of Kilimanjaro. Hearing these stories, I'm　__4__　about the place—other destinations are described as “purer”natural experiences. However, I soon　__5__　 that much has changed since the days of disturbing reports of　__6__　among tons of rubbish.I find a 　__7__　 mountain, with toilets at camps and along the paths. The environmental challenges are 　__8__　but the efforts made by the Tanzania National Park Authority seem to be paying off. The best of a Kilimanjaro　__9__　， in my opinion, isn't reaching the top. Mountains are regarded as spiritual places by many cultures. This　__10__　is especially evident on Kilimanjaro as　__11__　go through five ecosystems (生态系统) in the space of a few kilometers. At the base is a rainforest. It ends abruptly at 3,000 meters, giving way to lands of low growing plants. Further up, the weather　__12__　—low clouds envelope the mountainsides, which are covered with thick grass. I 　__13__　twelve shades of green from where I stand. Above 4,000 meters is the highland desert: gravel (砾石) , stones and rocks. Finally you climb into an Arctic­like zone with 　__14__　snow and the glaciers that may soon disappear. Does Kilimanjaro　__15__　its reputation as a crowded mountain with lines of tourists ruining the atmosphere of peace? I found the opposite to be true. 1．A.keep　　　　　　 B．mix C．connect D．bring 2．A.stories B．buildings C．crowds D．reporters 3．A.position B．age C．face D．name 4．A.silent B．skeptical C．serious D．crazy 5．A.discover B．argue C．decide D．advocate 6．A.equipment B．grass C．camps D．stones 7．A.remote B．quiet C．all D．clean 8．A.new B．special C．significant D．necessary 9．A.atmosphere B．experience C．experiment D．sight 10．A.view B．quality C．reason D．purpose 11．A.scientists B．climbers C．locals D．officials 12．A.changes B．clears C．improves D．permits 13．A.match B．imagine C．count D．add 14．A.permanent B．little C．fresh D．artificial 15．A.enjoy B．deserve C．save D．acquire [语篇解读]　本文是一篇记叙文。文章讲述了由于游客增多，人们乱扔垃圾，乞力马扎罗山的美名不副实。可喜的是，当地政府的环保努力有了回报，山脉生态在慢慢恢复之中。 1．D　[由上文“每年有大约四万人想攀爬乞力马扎罗山”和下文“might damage the beauty of the place(或许会破坏它的美)”可知，众多的登山者带来了(bring)许多垃圾。] 2．C　[由上文可知，每年约四万人攀爬乞力马扎罗山，拥挤的人群(及所带来的垃圾)或许会破坏它的美。crowd“人群”。] 3．C　[由上文知，冰川正在消融，改变着乞力马扎罗山的面貌(face)。] 4．B　[根据上文讲述的乞力马扎罗山的气候环境变化和下文的其他旅游景点总会被描述成更加纯净天然的体验可知，此处表示听完这些故事，作者对乞力马扎罗山的自然美丽持怀疑(skeptical)态度。] 5．A　[根据句首However表转折可知，与前面想法不同，作者不久之后发现了(discover)乞力马扎罗山的美。] 6．C　[自从关于乞力马扎罗山上成吨垃圾的报道后，情况发生了很多变化。下文又接着讲述作者在营地外和道路上看到了厕所，由此推知，上文中提到的报道指的是以前的营地(camp)是坐落在垃圾堆中的，现在干净了许多。] 7．D　[本句提到作者在营地里和道路上看到了许多厕所，与在 报道中出现的垃圾堆中的营地截然不同，干净、卫生(clean)。] 8．C　[前文提到了乞力马扎罗山的严峻的(significant)环境问题，毁坏了在人们心目中的形象。] 9．B　[由上文第二段中的“other destinations are described as ‘purer’natural experiences”可知，此空填experience，表示攀登乞力马扎罗山的最佳体验并不在于到达顶峰。] 10．A　[本句用来解释上句内容，为什么很多山脉被许多文化视为精神圣地，这种观点(view)的形成是因为人们可以仅在几千米的空间内经历五种生态系统。] 11．B　[此处表示当攀爬者(climber)在山上经历五种生态系统时，就会认识到这个地方的神圣高尚之处。] 12．A　[由上文可知，乞力马扎罗山上有五种生态系统，所以再往上气候又会变化(change)。] 13．C　[由上文可知，茂密的草丛覆盖着山体，低云压山，本句表示从作者所站之地望去可以数到(count)12处绿荫。] 14．A　[本句表示类北极地带永久的(permanent)积雪和冰川，但它们不久后可能会融化。] 15．B　[文章最后作者发出感慨：一个人满为患，破坏了原有宁静的乞力马扎罗山还能名副其实吗？] 6 学科网（北京）股份有限公司 $