精品解析：Unit 5 Looking into nature-Developing ideas同步练2025-2026学年外研版英语八年级下册

Unit 5 Looking into nature Developing ideas: 一、 选出与所给单词重音位置不同的单词。 1. record a song A. a world record B. record the temperature 2. a perfect set of teeth A. a perfect gift B. perfect his skills 3. a cultural desert A. the biggest desert B. a deserted house 4. research a problem A. scientific research B. research the nature 5. present your report A. a birthday present B. present the picture 【答案】1. A 2. B 3. B 4. A 5. A 【解析】 【1题详解】 record a song中record是动词，重音在第2音节/rɪˈkɔːd/；A. a world record中record是名词，重音在第1音节/ˈrekɔːd/；B. record the temperature中record是动词，重音在第2音节/rɪˈkɔːd/。因此A的重音位置不同。 【2题详解】 a perfect set of teeth中perfect是形容词，重音在第1音节/ˈpɜːrfɪkt/；A. a perfect gift中perfect是形容词，重音在第1音节/ˈpɜːrfɪkt/；B. perfect his skills中perfect是动词，重音在第2音节/pərˈfekt/。因此B的重音位置不同。 【3题详解】 a cultural desert中desert是名词，重音在第1音节/ˈdezərt/；A. the biggest desert中desert是名词，重音在第1音节/ˈdezərt/；B. a deserted house中deserted由动词desert变化而来，动词desert重音在第2音节/dɪˈzɜːrt/。因此B的重音位置不同。 【4题详解】 research a problem中research是动词，重音在第2音节/rɪˈsɜːrtʃ/；A. scientific research中research是名词，重音在第1音节/ˈriːsɜːrtʃ/；B. research the nature中research是动词，重音在第2音节/rɪˈsɜːrtʃ/。因此A的重音位置不同。 【5题详解】 present your report中present是动词，重音在第2音节/prɪˈzent/；A. a birthday present中present是名词，重音在第1音节/ˈpreznt/；B. present the picture中present是动词，重音在第2音节/prɪˈzent/。因此A的重音位置不同。 二、 根据音标写出单词及其常见词性 6. /'plænɪt/ ________ ________ 7. /ə'fɔːd/ ________ ________ 8. /rɪ'sɜːtʃ/ ________ ________ 9. /'prezənt/ ________ ________ 10. /'rekɔːd/ ________ ________ 【答案】6. ①. planet ②. 名词 7. ①. afford ②. 动词 8. ①. research ②. 动词 9. ①. present ②. 名词 10. ①. record ②. 名词 三、根据句意及音标或汉语注释完成单词（每小题1分，共5分） 11. The ________ (鲸鱼) is the largest animal in the ocean. 【答案】whale 【解析】 【详解】句意：鲸鱼是海洋中最大的动物。根据汉语提示可知，whale“鲸鱼”，谓语动词为单数，名词用单数形式。 12. When you mix these two things, they will ________ /riˈækt/. 【答案】react 【解析】 【详解】句意：当你把这两种东西混合在一起时，它们会发生反应。句中音标/riˈækt/对应的单词为“react”，且will后接动词原形。 13. Factories must not pour harmful ________ (化学物质) into rivers or lakes. 【答案】chemicals 【解析】 【详解】句意：工厂不得将有害化学物质排入河流或湖泊。“化学物质”对应的英文单词是名词chemical，chemical作名词时，常用复数形式表示化学制品或化学物质，应填chemicals。 14. You can __________ /ʌpˈləʊd/ your photos of sea animals to the school website. 【答案】upload 【解析】 【详解】句意：你可以把海洋动物的照片上传到学校网站。音标/ʌpˈləʊd/对应的单词是upload“上传”，情态动词can后接动词原形。故填upload。 15. Be careful with the ________ (滚热的) water in the kettle (壶)—it may burn you. 【答案】boiling 【解析】 【详解】句意：小心壶里滚烫的水——它可能会烫伤你。“滚热的”对应英文单词boiling，boiling water是固定搭配，专指“滚烫的、沸腾的水”，和句子语境（会烫伤人）完全吻合。 四、用括号中所给单词的适当形式填空（每小题1分，共5分） 16. As we all know, there are many _________ (secret) about space. 【答案】secrets 【解析】 【详解】句意：众所周知，关于太空有许多秘密。many修饰可数名词复数，提示词secret意为“秘密”，可数名词，因此secret需要变为复数形式secrets。 17. The strange smell drives us _________ (run) quickly and leave the room. 【答案】to run 【解析】 【详解】句意：奇怪的气味驱使我们快速跑开并离开房间。动词drive表示“迫使”时，常用结构为drive sb. to do sth.，因此括号中的动词“run”需变为不定式形式to run。 18. It’s _________ (likely) to snow in July in this city because it’s too hot. 【答案】unlikely 【解析】 【详解】句意：在这座城市，七月下雪是不太可能的，因为天气太热了。后半句because it’s too hot（因为天气太热）说明“七月下雪”这件事几乎不会发生，因此需要用likely的反义词，其否定形式为unlikely，意为“不太可能的”。 19. John solved the maths problem as _________ (easy) as his teacher expected. 【答案】easily 【解析】 【详解】句意：约翰解这道数学题和他的老师期望的一样容易。句中“as...as”结构表示“和……一样”，中间需用形容词或副词的原级；此处修饰动词“solved”，应用副词形式，“easy”的副词形式为easily。 20. The Great Wall is one of the _________ (amazing) landmarks in the world. 【答案】most amazing 【解析】 【详解】句意：长城是世界上“最令人惊叹的”地标之一。句中“one of the+形容词最高级+名词复数”是固定结构，表示“……中最……之一”；“amazing”是多音节形容词，其最高级形式为most amazing。 五、语法填空（每小题1分，共10分） Changing Amazon According to a new study, the Amazon rainforest may become grassland in a few years. The Amazon is the world’s ____21____ (big) rainforest. Climate change and our activities make it “sick”. Usually, the rainforest can fix ____22____ (it). But now, it feels too “tired” to get better. The trees may die and the rainforest could turn into hot, dry grassland. Why is the Amazon “sick”? The Amazon is one of the wettest ____23____ (place) on earth. But since 2005, three droughts (干旱) ____24____ (hit) the rainforest. Scientists discovered ____25____ they were caused by the changing environment. The trees don’t have enough water ____26____ (grow). What’s worse, as they become dry, they can ____27____ (easy) catch fire. On top of this, people cut down rainforest trees ____28____ wood. They burn the forest to make farmland. All these activities have caused about 17% of the rainforest to disappear. What will happen if we lose it? The Amazon is like the lungs of our planet. It produces more than 20% of the ____29____ (planet) oxygen. ____30____ the Amazon “dies”, there will be more and our earth will become even hotter. The Amazon is also home to over 3 million animals and plants. Many of them can’t live anywhere else. They would very likely just disappear. 【答案】21. biggest 22. itself 23. places 24. have hit 25. that 26. to grow 27. easily 28. for 29. planet’s 30. If 【解析】 【导语】本文是一篇说明文，主要介绍了亚马逊雨林面临的危机、成因，以及如果失去亚马逊雨林将会带来的严重后果。 【21题详解】 句意：亚马逊是世界上最大的雨林。根据“the world’s”可知，此处应填形容词最高级，big的最高级为biggest。 【22题详解】 句意：通常，雨林可以自我修复。fix oneself表示“自我修复”，此处用反身代词itself指代雨林自身。 【23题详解】 句意：亚马逊是地球上最湿润的地方之一。“one of+可数名词复数”为固定结构，此处需填place的复数形式places。 【24题详解】 句意：但自2005年以来，三场干旱袭击了这片雨林。“since+过去时间点”是现在完成时的标志，因此本句时态为现在完成时；主语“three droughts”为复数，助动词用have，hit的过去分词为hit。 【25题详解】 句意：科学家发现它们是由环境变化引起的。此处引导宾语从句，从句语义完整、不缺成分，用that引导。 【26题详解】 句意：树木没有足够的水分生长。have enough sth. to do sth.为固定结构，意为“有足够某物做某事”，此处需填grow的不定式形式to grow。 【27题详解】 句意：更糟糕的是，当它们变干时，很容易着火。此处修饰动词词组“catch fire”，应用easy的副词形式easily。 【28题详解】 句意：除此之外，人们砍伐雨林树木获取木材。此处表目的，意为“为了获取木材”，用介词for。 【29题详解】 句意：它产生了地球超过20%的氧气。此处用planet的名词所有格planet’s修饰oxygen，表示“地球的氧气”。 【30题详解】 句意：如果亚马逊“消亡”，二氧化碳将会增多，我们的地球会变得更热。此处应用if引导条件状语从句，意为“如果”，句首首字母大写。 六、阅读理解（每小题2分，共8分） Do you know how deep the ocean is? What does it look like? What kind of animals are living there? More than 80 percent of the ocean hasn’t been studied yet! Looking carefully at the deep ocean is hard because it’s dark, cold, and the pressure is strong. Although there are challenges, scientists still have been able to research parts of the deep sea. One way is by using small tools called submersibles (深潜器). These tools record videos and collect samples of the water and seafloor. What scientists have found so far from their research is pretty amazing! The deep ocean is home to animals that adapt to (适应) such dark and cold places in cool ways. Some animals, like giant squid, have large eyes to take in light. Others are blind and smell things around to live. Many deep-sea animals can even make their own light. The female angler fish uses bacteria (细菌) to make light in order to catch food. Vents are another part of the deep sea we’re learning about. The waters around can hit temperatures up to 371°C and they are home to some small sea animals, such as shrimps and crabs. Scientists are working to study more of the deep ocean. In these dark, high-pressure places, they hardly find animals like fish or whales because their bodies would break into pieces under the strong water pressure. But each year they discover new kinds of sea animals. No matter what they discover next, one thing is sure—it will surprise us all! 31. How does the writer lead into the topic in Paragraph 1? A. By asking questions. B. By telling stories. C. By listing numbers. D. By comparing facts. 32. How do some animals adapt to the deep ocean according to Paragraph 2? A. Eat a lot of food. B. Have large noses. C. Smell things around. D. Make their own fire. 33. What does the writer think of the future research on the deep ocean? A. It’s expensive to do it. B. It’s too difficult to find animals. C. It’s dangerous to take part in it. D. It’s hopeful to find something new. 34. Which part of a magazine is the passage probably taken from? A. History. B. Business. C. Nature. D. Culture. 【答案】31. A 32. C 33. D 34. C 【解析】 【导语】本文是一篇说明文，主要介绍了深海探索的挑战、科学家使用深潜器研究深海的情况，以及深海生物的独特适应性和未来研究的潜力。 【31题详解】 细节理解题。根据文章第1段“Do you know how deep the ocean is? What does it look like? What kind of animals are living there?”可知，作者通过提问的方式引入话题。故选A。 【32题详解】 细节理解题。根据文章第2段“Others are blind and smell things around to live.”可知，一些深海动物通过嗅觉感知周围环境来生存。故选C。 【33题详解】 观点态度题。根据文章最后1段“No matter what they discover next, one thing is sure—it will surprise us all!”可知，不管他们接下来有什么发现，肯定会让我们所有人大吃一惊。由此可知，作者对深海研究的未来持乐观态度，认为有希望会有新发现。故选D。 【34题详解】 推理判断题。文章主要围绕深海探索和生物展开，属于自然科学范畴。故选C。 七、任务型阅读（每小题2分，共10分） 阅读下面材料，从选项中所给的A—E五个选项中选出正确选项(其中一项是多余选项)，将其序号填入第 1-4小题，并回答第5小题。 Bigfoot is one of the most famous mysteries of nature. People say it is a large, hairy creature (生物). It walks upright like a human, standing over 3 metres tall with wide shoulders. Its name comes from the huge footprints—up to 35 centimetres long. ____35____ Such stories have been told for hundreds of years, especially by Native American groups in North America. Over time, many people have reported seeing Bigfoot. Most sightings happened in faraway (遥远的) forests and mountain areas. Some people said they saw it. They described it as having thick, dark fur to stay warm in cold weather, and moving much faster than you might expect. ____36____ It stayed in the area after Bigfoot left. Some even said they heard deep growls (咆哮) or loud calls before catching a quick look at it. Scientists have different ideas about Bigfoot. Many think the reports are either mistakes or made-up stories. They say people might have seen bears or other large animals and thought they were Bigfoot. ____37____ They think it’s possible that scientists haven’t found this animal yet. ____38____ Whether it is real or not, Bigfoot remains something that makes people curious about nature’s secrets, encouraging us to learn more about the world around us. A. Others, though, think the stories might be true. B. Similar stories can also be found in other parts of the world. C. Many also talked about a strong, strange smell. D. For example, some experts have studied the footprints to find proof. E. These stories have encouraged many books, films and TV programmes. 35. ________ 36. ________ 37. ________ 38. ________ 39. If you had a chance to join a trip to search for signs of Bigfoot, what would you prepare first? (不超过 15 词) __________________________________________________________________________________ 【答案】35. B 36. C 37. A 38. E 39. I would prepare a good camera with night vision first. 【解析】 【导语】本文是一篇说明文，主要讲述了关于大脚怪（Bigfoot）的传说、目击报告、科学家的不同观点以及它对文化的影响。 【35题详解】 第1段提到“Such stories have been told for hundreds of years”，可推知空白处应涉及故事的广泛存在，选项B”Similar stories can also be found in other parts of the world.（世界各地也能发现类似故事）“与前文北美洲的故事形成呼应并引出后文。 【36题详解】 第2段提到”It stayed in the area after Bigfoot left.（大脚怪离开后它仍留在该区域。）”，可知空白处应指代一种能残留的感官迹象，选项C“Many also talked about a strong, strange smell.（许多人还谈到一股强烈的奇怪气味。）”中的气味符合“停留”的特征。 【37题详解】 第3段提到“Many think the reports are either mistakes or made-up stories.（许多人认为这些报告要么是错误要么是编造的故事。）”与后文“They think it’s possible that scientists haven’t found this animal yet.（他们认为科学家可能还没找到这种动物。）”。可知此处需转折引出持相信观点的人群，选项A“Others, though, think the stories might be true.（然而其他人认为故事可能是真的。）”符合逻辑对比。 【38题详解】 第4段提到“Whether it is real or not, Bigfoot remains something that makes people curious about nature’s secrets（无论真假，大脚怪仍然是让人们好奇自然秘密的事物）”，可知空白处应体现大脚怪带来的社会文化影响，选项E“These stories have encouraged many books, films and TV programmes.（这些故事激励了许多书籍、电影和电视节目。）”符合语境。 【39题详解】 根据问题“If you had a chance to join a trip to search for signs of Bigfoot, what would you prepare first?（如果你有机会参加寻找大脚怪踪迹的旅行，你会首先准备什么？）”，可知需回答具体的准备物品，答案不唯一，言之有理且不超过15词即可。 第1页/共1页 学科网（北京）股份有限公司 $ Unit 5 Looking into nature Developing ideas: 一、 选出与所给单词重音位置不同的单词。 1. record a song A. a world record B. record the temperature 2. a perfect set of teeth A. a perfect gift B. perfect his skills 3. a cultural desert A. the biggest desert B. a deserted house 4. research a problem A. scientific research B. research the nature 5. present your report A. a birthday present B. present the picture 二、 根据音标写出单词及其常见词性 6. /'plænɪt/ ________ ________ 7. /ə'fɔːd/ ________ ________ 8. /rɪ'sɜːtʃ/ ________ ________ 9. /'prezənt/ ________ ________ 10. /'rekɔːd/ ________ ________ 三、根据句意及音标或汉语注释完成单词（每小题1分，共5分） 11. The ________ (鲸鱼) is the largest animal in the ocean. 12. When you mix these two things, they will ________ /riˈækt/. 13. Factories must not pour harmful ________ (化学物质) into rivers or lakes. 14. You can __________ /ʌpˈləʊd/ your photos of sea animals to the school website. 15. Be careful with the ________ (滚热的) water in the kettle (壶)—it may burn you. 四、用括号中所给单词的适当形式填空（每小题1分，共5分） 16. As we all know, there are many _________ (secret) about space. 17. The strange smell drives us _________ (run) quickly and leave the room. 18. It’s _________ (likely) to snow in July in this city because it’s too hot. 19. John solved the maths problem as _________ (easy) as his teacher expected. 20. The Great Wall is one of the _________ (amazing) landmarks in the world. 五、语法填空（每小题1分，共10分） Changing Amazon According to a new study, the Amazon rainforest may become grassland in a few years. The Amazon is the world’s ____21____ (big) rainforest. Climate change and our activities make it “sick”. Usually, the rainforest can fix ____22____ (it). But now, it feels too “tired” to get better. The trees may die and the rainforest could turn into hot, dry grassland. Why is the Amazon “sick”? The Amazon is one of the wettest ____23____ (place) on earth. But since 2005, three droughts (干旱) ____24____ (hit) the rainforest. Scientists discovered ____25____ they were caused by the changing environment. The trees don’t have enough water ____26____ (grow). What’s worse, as they become dry, they can ____27____ (easy) catch fire. On top of this, people cut down rainforest trees ____28____ wood. They burn the forest to make farmland. All these activities have caused about 17% of the rainforest to disappear. What will happen if we lose it? The Amazon is like the lungs of our planet. It produces more than 20% of the ____29____ (planet) oxygen. ____30____ the Amazon “dies”, there will be more and our earth will become even hotter. The Amazon is also home to over 3 million animals and plants. Many of them can’t live anywhere else. They would very likely just disappear. 六、阅读理解（每小题2分，共8分） Do you know how deep the ocean is? What does it look like? What kind of animals are living there? More than 80 percent of the ocean hasn’t been studied yet! Looking carefully at the deep ocean is hard because it’s dark, cold, and the pressure is strong. Although there are challenges, scientists still have been able to research parts of the deep sea. One way is by using small tools called submersibles (深潜器). These tools record videos and collect samples of the water and seafloor. What scientists have found so far from their research is pretty amazing! The deep ocean is home to animals that adapt to (适应) such dark and cold places in cool ways. Some animals, like giant squid, have large eyes to take in light. Others are blind and smell things around to live. Many deep-sea animals can even make their own light. The female angler fish uses bacteria (细菌) to make light in order to catch food. Vents are another part of the deep sea we’re learning about. The waters around can hit temperatures up to 371°C and they are home to some small sea animals, such as shrimps and crabs. Scientists are working to study more of the deep ocean. In these dark, high-pressure places, they hardly find animals like fish or whales because their bodies would break into pieces under the strong water pressure. But each year they discover new kinds of sea animals. No matter what they discover next, one thing is sure—it will surprise us all! 31. How does the writer lead into the topic in Paragraph 1? A. By asking questions. B. By telling stories. C. By listing numbers. D. By comparing facts. 32. How do some animals adapt to the deep ocean according to Paragraph 2? A. Eat a lot of food. B. Have large noses. C. Smell things around. D. Make their own fire. 33. What does the writer think of the future research on the deep ocean? A. It’s expensive to do it. B. It’s too difficult to find animals. C. It’s dangerous to take part in it. D. It’s hopeful to find something new. 34. Which part of a magazine is the passage probably taken from? A. History. B. Business. C. Nature. D. Culture. 七、任务型阅读（每小题2分，共10分） 阅读下面材料，从选项中所给的A—E五个选项中选出正确选项(其中一项是多余选项)，将其序号填入第 1-4小题，并回答第5小题。 Bigfoot is one of the most famous mysteries of nature. People say it is a large, hairy creature (生物). It walks upright like a human, standing over 3 metres tall with wide shoulders. Its name comes from the huge footprints—up to 35 centimetres long. ____35____ Such stories have been told for hundreds of years, especially by Native American groups in North America. Over time, many people have reported seeing Bigfoot. Most sightings happened in faraway (遥远的) forests and mountain areas. Some people said they saw it. They described it as having thick, dark fur to stay warm in cold weather, and moving much faster than you might expect. ____36____ It stayed in the area after Bigfoot left. Some even said they heard deep growls (咆哮) or loud calls before catching a quick look at it. Scientists have different ideas about Bigfoot. Many think the reports are either mistakes or made-up stories. They say people might have seen bears or other large animals and thought they were Bigfoot. ____37____ They think it’s possible that scientists haven’t found this animal yet. ____38____ Whether it is real or not, Bigfoot remains something that makes people curious about nature’s secrets, encouraging us to learn more about the world around us. A. Others, though, think the stories might be true. B. Similar stories can also be found in other parts of the world. C. Many also talked about a strong, strange smell. D. For example, some experts have studied the footprints to find proof. E. These stories have encouraged many books, films and TV programmes. 35. ________ 36. ________ 37. ________ 38. ________ 39. If you had a chance to join a trip to search for signs of Bigfoot, what would you prepare first? (不超过 15 词) __________________________________________________________________________________ 第1页/共1页 学科网（北京）股份有限公司 $