Unit 4 Amazing Plants and Animal.【单元拔高卷】-2025-2026学年八年级新教材英语上册基础知识专项讲练（人教版2024）

班级 姓名 学号 分数 Unit 4 Amazing Plants and Animal.（单元拔高卷） （时间：90分钟，满分：100分） 一、完形填空（15分） 阅读下面短文，掌握其大意，然后从各题所给的四个选项中选出一个最佳答案。 On a cold sunny day, I sat in my car and watched dolphins swim in the sea. 1 , I saw some dolphins were beached (搁浅). It was very 2 for them to be out of water. I knew they needed help. 3 thinking too much, I jumped out of my car and ran to the beach. I first called the police but their 4 were far away. It was a life-or-death moment for the dolphins. I didn’t know 5 to help them, so I put a message on the Internet. I hoped someone could see it and come to 6 those lovely animals. Minutes later, three teenage boys from a nearby school came first. It was like light that drove the darkness away. Then more and more people 7 . We decided to save the smaller dolphins first and worked together to move them back to the 8 water successfully. To my surprise, 9 the smaller dolphins were saved, none of them left. They stayed in the water and made strange sounds to help the other dolphins. After we 10 the rescue (救援) work, all the dolphins raised their heads from water and swam around to show their 11 to us. Then, they swam back to the deep sea. It touched me a lot and made my heart 12 . The dolphins had a great sense of helping each other when there was 13 . I realized that our volunteer group was just like the dolphins. On such a cold day, 14 cared about getting wet or dirty. We tried our best to save the dolphins and made sure everyone was safe. People can always 15 our friends—animals. I will never forget this experience. 1．A．Suddenly B．Luckily C．Happily D．Excitedly 2．A．amazing B．important C．dangerous D．necessary 3．A．With B．Without C．By D．On 4．A．eyes B．hands C．ears D．knees 5．A．where B．which C．how D．when 6．A．save B．watch C．enjoy D．find 7．A．changed B．moved C．left D．arrived 8．A．dirtier B．quieter C．cleaner D．deeper 9．A．before B．whenever C．after D．until 10．A．finished B．started C．closed D．tried 11．A．fins B．thanks C．fears D．worries 12．A．broken B．cold C．hurt D．warm 13．A．change B．direction C．trouble D．interest 14．A．anybody B．nobody C．somebody D．everybody 15．A．learn from B．live on C．agree with D．worry about 【答案】 1．A 2．C 3．B 4．B 5．C 6．A 7．D 8．D 9．C 10．A 11．B 12．D 13．C 14．B 15．A 【导语】本文主要介绍了作者和其他人一起努力拯救了搁浅的海豚，而且当遇到麻烦时，海豚也互相帮助，作者也学到人们总是可以向我们的朋友——动物学习。 1．句意：突然，我看到一些海豚搁浅了。 Suddenly突然；Luckily幸运地；Happily开心地；Excitedly兴奋地。根据“I saw some dolphins were beached”可知，是突然看到海豚搁浅了。故选A。 2．句意：离开水对它们来说非常危险。 amazing令人惊奇的；important重要的；dangerous危险的；necessary必要的。根据“for them to be out of water.”可知，离开水对海豚很危险。故选C。 3．句意：我没有想太多，就跳下车，跑向海滩。 With有；Without没有；By通过；On在上面。根据“thinking too much, I jumped out of my car and ran to the beach”可知，是没有想太多，就跑向海滩。故选B。 4．句意：我首先报警，但他们离我很远。 eyes眼睛；hands手；ears耳朵；knees膝盖。根据“were far away”可知，转折词后表示警察离得很远，此处hands有“协助”的意思，符合语境。故选B。 5．句意：我不知道如何帮助他们，所以我在网上发了一条消息。 where哪里；which哪一个；how如何；when什么时候。根据“to help them”可知，是不知道如何帮助海豚。故选C。 6．句意：我希望有人能看到它，来拯救那些可爱的动物。 save拯救；watch看；enjoy享受；find发现。根据“...those lovely animals.”可知，是来拯救这些搁浅的动物。故选A。 7．句意：然后越来越多的人来了。 changed改变；moved移动；left离开；arrived到达。根据“Then more and more people ”可知，是越来越多的人到达这里来拯救海豚。故选D。 8．句意：我们决定先拯救较小的海豚，并共同努力将它们成功地移回更深的水域。 dirtier更脏；quieter更安静；cleaner更干净；deeper更深。根据“move them back to the...water”可知，是让它们移回更深的海域。故选D。 9．句意：令我惊讶的是，小海豚获救后，一只也没离开。 before在……之前；whenever无论何时；after在……之后；until直到。根据“...the smaller dolphins were saved, none of them left”可知，小海豚获救后，它们都没有离开。故选C。 10．句意：在我们完成救援工作后，所有的海豚都从水中抬起头来，游来游去向我们表示感谢。 finished结束；started开始；closed关闭；tried尝试。根据“ the rescue (救援) work”可知，是完成救援工作。故选A。 11．句意：在我们完成救援工作后，所有的海豚都从水中抬起头来，游来游去向我们表示感谢。 fins鳍；thanks感谢；fears害怕；worries担心。根据“all the dolphins raised their heads from water and swam around to show their...”可知，海豚向拯救它们的人表达感谢。故选B。 12．句意：它深深地打动了我，让我的心变得温暖。 broken破的；cold冷的；hurt受伤的；warm温暖的。根据“It touched me a lot and made my heart...”可知，海豚的做法让作者感到很温暖。故选D。 13．句意：当遇到麻烦时，海豚们有一种互相帮助的强烈感觉。 change改变；direction方向；trouble麻烦；interest兴趣。根据“The dolphins had a great sense of helping each other”可知，有困难的时候，互相帮助。故选C。 14．句意：在这么冷的一天，没有人在乎淋湿或弄脏。 anybody任何人；nobody没有人；somebody一些人；everybody每个人。根据“cared about getting wet or dirty”可知，他们都努力拯救海豚，没有人在乎淋湿或弄脏。故选B。 15．句意：人们总会从动物——我们的朋友身上学到很多。 learn from从……学到；live on住在；agree with同意某人；worry about担心。根据“People can always...our friends—animals.”可知，我们总会从朋友身上学到很多。故选A。 二、阅读理解（40分） A Locate (定位) birds with AISome scientists in Australia use Artificial Intelligence (AI) to locate a rare (珍稀) bird called the Plains-wanderer. This will help protect the endangered bird. The Plains-wanderer is a small bird that lives in the grasslands in Australia. AI helps find the birds by listening to their calls. Track (追踪) bees with QR codesScientists placed a very small QR code on the back of the bee to track them when they leave and return homes. It will help them learn more about them. Scientists have had long questions about how far bees travel to collect food. They believe bees can fly as far as 6 miles (10 kilometers) if they need to. But most of the time, bees probably don’t fly so far. ▲ Polar bears in Alaska are tracked by researchers using radio collars (无线电项圈). They found that due to the faster sea ice movement caused by climate change, the bears have to work harder to stay in their homes. Scientists worry that if the situation becomes worse, the polar bear population could drop sharply. They are calling for action to reduce greenhouse effect (温室效应). 16．What does “this” refer to in the first news? A．Calling birds B．Locating birds C．Studying birds D．Protecting birds 17．Why do researchers place QR codes on the backs of the bees? A．To study how far bees travel. B．To find out when bees leave homes. C．To know how fast bees can fly. D．To learn about what food bees collect. 18．Which of the following statements can be put into ▲ ? A．Protect endangered animals B．Reduce greenhouse effect C．Track polar bears with radio collars D．Take action to save polar bears 19．What does the above news focus on? A．Some facts about animals. B．Living habits of different animals. C．Good ways of protecting animals. D．Technologies used in studying animals. 20．In which SECTION of the newspaper can we read the news? A．Travel. B．People. C．Animals. D．Technology. 【答案】16．B 17．A 18．C 19．D 20．D 【导语】本文是一篇说明文，主要介绍了三项利用科技手段研究动物的案例：澳大利亚科学家用 AI 定位珍稀鸟类领鹑、通过二维码追踪蜜蜂的活动范围，以及用无线电项圈追踪阿拉斯加北极熊的生存状况，展现了科技在动物研究中的应用。 16．词句猜测题。根据第一段中“Some scientists in Australia use Artificial Intelligence (AI) to locate a rare (珍稀) bird called the Plains-wanderer. This will help protect the endangered bird.”可知，“this”指代前文“用 AI 定位珍稀鸟类”的行为。故选B。 17．细节理解题。根据第二段中“Scientists have had long questions about how far bees travel to collect food.”可知，研究人员在蜜蜂背部放置二维码是为了研究蜜蜂采蜜时的飞行距离。故选A。 18．推理判断题。根据最后一段内容“Polar bears in Alaska are tracked by researchers using radio collars (无线电项圈). They found that due to the faster sea ice movement caused by climate change, the bears have to work harder to stay in their homes. Scientists worry that if the situation becomes worse, the polar bear population could drop sharply. They are calling for action to reduce greenhouse effect (温室效应).”可知，本段主要讲述了用无线电项圈追踪阿拉斯加北极熊的生存状况。由此可知，C选项“用无线电项圈追踪北极熊”最适合做本段标题。故选C。 19．主旨大意题。通读全文可知，三篇新闻分别介绍了AI、二维码、无线电项圈在鸟类、蜜蜂、北极熊研究中的应用，核心是“研究动物时使用的技术”。故选D。 20．推理判断题。通读全文可知，本文主要介绍了三项利用科技手段研究动物的案例：澳大利亚科学家用 AI 定位珍稀鸟类平原wanderer、通过二维码追踪蜜蜂的活动范围，以及用无线电项圈追踪阿拉斯加北极熊的生存状况，展现了科技在动物研究中的应用。由此可知，我们可以在报纸的科技版面上看到这篇新闻。故选D。 B Many scientists agree that animals have emotions (情感) just like humans. Although there are different ideas about how animals experience emotions, their action showed that animals experience things like happiness, sadness, nervousness and excitement. Whales are quite smart and can show sadness. In 2018, an orca (虎鲸) mother was seen carrying her dead child around for weeks as she was sad about its death. Another example shows that whales can have sympathy (同情心) toward other animals. Humpback whales (座头鲸) have been watched fighting with orcas to protect seals (海豹). They keep the seals out of danger by lifting them out of the water on their backs. Elephants are also known for their ability to show emotions. When an older elephant passes away, its family often stay by the body for a long time, and members will softly touch the dead elephant’s body. And like whales, elephants show sympathy by joining in protective action toward other animals. For example, they’re famous for protecting people from other wildlife. In a study, a group of mice that had experienced electric shocks froze when they saw another group getting shocked. The action was considered to be an empathetic response (共情反应) as the mice became uncomfortable when seeing others in bad situations. Animals are able to show their emotions. They use different kinds of ways such as body language, making sounds and action to show their feelings. At the same time, it is important for human beings to understand the emotions of animals and treat them with kindness. 21．How do scientists learn that animals have emotions? A．By watching animals’ action. B．By experiencing animals’ feelings. C．By discussing with other scientists. D．By studying animals’ living conditions. 22．What does the underlined word “lifting” in Paragraph 2 mean? A．Picking. B．Raising. C．Passing. D．Throwing. 23．What are the same things among the three animals mentioned? A．They are all kind to others. B．They are all helpful to human beings. C．They all protect people from other wildlife. D．They all use body language to express emotions. 24．What would be the best structure of the passage? A． B．C． D． 25．What would be the best title for the passage? A．Why do animals fight with others? B．What are the secrets behind animals? C．Do animals also show their emotions? D．Can animals understand people’s feelings? 【答案】21．A 22．B 23．A 24．C 25．C 【导语】本文讲述了科学研究证实动物和人类一样具有丰富的情感能力，并通过具体案例展示了不同动物表达情感的方式，最后呼吁人类理解和善待动物。 21．细节理解题。根据“an orca (虎鲸) mother was seen carrying her dead child around for weeks”和“Humpback whales (座头鲸) have been watched fighting with orcas to protect seals (海豹).”可知，虎鲸妈妈被看到带着她死去的孩子四处游荡了好几个星期，人们曾看到座头鲸为了保护海豹而与逆戟鲸搏斗。所以是通过观察动物的行为来得知动物有情感。故选A。 22．词句猜测题。根据“They keep the seals out of danger by lifting them out of the water on their backs.”可知，座头鲸把海豹背出水面，使它们远离危险。所以划线词意为“托起、举起”，与“Raising”同义。故选B。 23．细节理解题。根据文章内容可知，座头鲸保护海豹；大象哀悼死去的成员，并保护人类免受其他野生动物伤害；老鼠看到同类受电击会僵住。所以它们的相同点是表现出对他者的善意。故选A。 24．篇章结构题。根据文章内容可知，第一段提出观点——动物有情感；第二、三、四段列举鲸、大象和老鼠的例子来说明该观点；第五段总结全文并呼吁人类善待动物。故选C。 25．最佳标题题。通读全文可知，本文讲述了科学研究证实动物和人类一样具有丰富的情感能力，并通过具体案例展示了不同动物表达情感的方式，所以C项“动物也会表达它们的情感吗？”适合作标题。故选C。 C As we all know, there is very short of water in lots of areas in Africa. However, there is a magical tree which can help to solve the water problem. It is called the “sacred (神圣的) tree of Africa”—baobab tree (猴面包树). A baobab tree is huge like an upside-down carrot. It can grow so large that it requires more than 40 people holding hands to circle it. Actually, most baobab trees are not very tall, only about ten meters. A baobab tree is full of treasures. It is said that if everyone in Africa had a 10-meter-tall baobab tree, it would solve more than 50% of their food problems. In hot Africa, water is the most needed. When the rainy season comes, the baobab tree starts to hold water in its body. The baobab tree is said to be the most water-holding tree. It can hold thousands of kilograms of water in its body. Local people usually cut a hole in the tree with a knife and get clean water from it. The baobab tree leaves are a bit like spinach (菠菜) leaves. True to its Chinese name, the fruit of the baobab tree tastes like bread. But it’s not like bread with cream. It tastes dry. Local people seldom get stomach problems because of eating it. Baobab trees are not only useful for humans, but for animals in nature! Their fruit can be good food for monkeys, lizards and other African animals. Their leaves can also be eaten to get enough water. The branches of a baobab look like a root, making it a perfect home to birds. Indeed, baobab trees are the “tree of life” for Africans. The tall, straight baobab trees act like lighthouses. As the African saying goes, “Baobab trees lit up against the dark ‘African Sky’.” They light up not only the night sky, but also our respect for nature. 26．What does a baobab tree look like? A．A monkey. B．A human. C．A carrot. D．A piece of bread. 27．What does Paragraph 3 mainly talk about? A．How useful the baobab trees are. B．How serious the problems are in Africa. C．What the fruit of baobab trees tastes like. D．How Africans get water from baobab trees. 28．Which of the following sentences is an opinion? A．Many places in Africa are very short of water. B．Most baobab trees are not very tall, only about ten meters. C．Baobab trees are useful both for humans and animals in nature! D．A baobab tree can hold thousands of kilograms of water in its body. 29．What is the structure of the article? (① = Paragraph 1  ② = Paragraph 2,...) A． B． C． D． 30．What is the best title for the article? A．Africans in Need of Water B．The Sacred Tree of Africa C．A Magic Tree in Danger D．The Most Water-holding Tree 【答案】26．C 27．A 28．C 29．B 30．B 【导语】本文是一篇说明文。文章主要介绍了非洲圣树——猴面包树。 26．细节理解题。根据第二段“A baobab tree is huge like an upside-down carrot.”可知猴面包树像一根胡萝卜。故选C。 27．主旨大意题。通读第三段，根据“A baobab tree is full of treasures.”可知此段主要介绍了猴面包树有多有用。故选A。 28．细节理解题。根据第四段“Baobab trees are not only useful for humans, but for animals in nature!”可知猴面包树不仅对人类有用，对自然界的动物也有用。这是对猴面包树的看法。故选C。 29．篇章结构题。通读全文可知，文章第一段点题，提到猴面包树；第二、三、四段介绍猴面包树的形状和用处，第五段总结猴面包树的价值，B选项符合题意。故选B。 30．最佳标题题。通读全文，根据第一段“ It is called the “sacred (神圣的) tree of Africa”— baobab tree (猴面包树).”可知本文主要介绍了非洲圣树——猴面包树。故选B。 D What’s the biggest spider in the world? The tarantula (狼蛛)! The biggest kind can grow up to 12 inches (30 cm) long. Where tarantulas live 31 . Many live in forests, and others live in deserts. Some tarantulas live in holes in the ground. Others live in trees. Knowing about its body A tarantula has a lot of hairs. The hairs help it feel things that move. 32 . A tarantula has a hard covering (覆盖物) on its body. As it grows, the covering gets too small for it and falls down from its body. Its new covering will get hard soon. 33 Tarantulas come out to look for food at night. They eat frogs, mice, small snakes and so on. They also eat spiders —even other tarantulas. When an animal comes near, the tarantula jumps and makes the animal stop moving. 34 . It cuts up the animal into pieces with its little arms and enjoys a delicious meal. How safe tarantulas are Many people are afraid of tarantulas because they are so big. 35 . People are a bigger danger to tarantulas than any other animal. We should protect them. These amazing tarantulas are important to the nature. 根据语篇内容，从下面所给的选项中选出能填入空白处的最佳选项，使短文语意连贯。选项中有一项为多余项。 A．How fast tarantulas move B．Learning about eating habits C．Then it pulls the animal back home D．The hairs near its mouth also help it taste and smell E．But they won’t hurt you if you leave them alone F．Tarantulas live in different places around the world 【答案】31．F 32．D 33．B 34．C 35．E 【导语】本文主要介绍了狼蛛。 31．根据“Many live in forests, and others live in deserts. Some tarantulas live in holes in the ground. Others live in trees.”可知，狼蛛生活在不同的地方。选项F“狼蛛生活在世界各地”符合语境，故选F。 32．根据“A tarantula has a lot of hairs. The hairs help it feel things that move.”可知，是在介绍狼蛛的毛发。选项D“嘴巴附近的毛发也有助于它的味觉和嗅觉”符合语境，故选D。 33．根据“Tarantulas come out to look for food at night. They eat frogs, mice, small snakes and so on. ”可知，是在介绍狼蛛的食物。选项B“了解饮食习惯”符合语境，故选B。 34．根据“When an animal comes near, the tarantula jumps and makes the animal stop moving”可知，是在介绍狼蛛的捕食情况。选项C“然后它把动物拉回家”符合语境，故选C。 35．根据“How safe tarantulas are”可知，介绍狼蛛一般不伤害人。选项E“但如果你不打扰它们，它们就不会伤害你”符合语境，故选E。 三、任务型阅读（10分） What will the weather be like? Some animals can tell the weather. If people want to know the weather, they can watch the animals. When the weather is not good, seabirds will stay on the shore (海岸). They don’t like to fly in the strong wind. They may stay in a tree when heavy rain is coming. But when people see seabirds flying high in the sky, they know it will be a sunny day. When the rain is on the way, the ants will move their houses from the low places to the high places, because they worry that rain will submerge (浸没) their homes. When it’s going to rain, the frogs will stay in the water and make big noise with “croak, croak”. But if it is a fine day, the frogs will be out of the water and make big noise. People living on the farm can also watch the animals to tell the weather. When heavy rain is coming, the chickens will make big noise with “peep, peep” and run here and there. 根据语篇内容，回答问题。（每小题答案不超过10个词） 36．What may the seabirds do when the weather is sunny? 37．Why are ants moving their houses to the high places when the rain is on the way? 38．Where will the frogs stay when it’s going to rain? 39．What may the weather be like when the chickens run here and there? 40．Can some animals tell us what the weather will be like? 【答案】 36．Fly high in the sky. 37．Because they worry that rain will submerge their homes. 38．In the water. 39．It may rain heavily. 40．Yes, they can. 【导语】本文主要讲述了某些动物能够通过它们的行为来预示天气变化，人们可以通过观察这些动物的行为来了解天气情况。 36．根据文章中的“But when people see seabirds flying high in the sky, they know it will be a sunny day.”可知，当天气晴朗时，海鸟会在天空中高飞。故填Fly high in the sky. 37．根据文章提到“When the rain is on the way, the ants will move their houses from the low places to the high places, because they worry that rain will submerge their homes.”，这表明蚂蚁在雨即将来临时会把家搬到高处，是因为它们担心雨水会淹没它们的家。故填Because they worry that rain will submerge their homes. 38．根据文章中提到“When it’s going to rain, the frogs will stay in the water and make big noise with ‘croak, croak’.” 这表明当下雨时，青蛙会待在水里。故填In the water. 39．根据文章中的“When heavy rain is coming, the chickens will make big noise with ‘peep, peep’ and run here and there.”可知，当鸡到处乱跑并发出“叽叽”声时，可能意味着即将下大雨。故填It may rain heavily. 40．根据文章首句“What will the weather be like? Some animals can tell the weather. If people want to know the weather, they can watch the animals.”明确指出，有些动物能够预示天气，人们可以通过观察它们来了解天气情况。故填Yes, they can. 四、短文填空（10分） 阅读下面材料，按照句子结构的语法情况和上下文连贯的要求，在空白处填入适当的词或用括号中所给词的正确形式填空。每空不超过两词。 Have you ever 41 (see) desert popular trees (胡杨树)? If you say “no”, then you must have heard that this kind of tree is famous 42 its ability to live in a dry condition. Desert popular trees grow near the Tarim River in Xinjiang. They are the 43 (old) popular trees in the world. This kind of popular tree has 44 (live) for more than 60,000,000 years. It can live through cold 45 (winter) and hot summers. The desert popular tree has a large root (根) network that can take in water. The trees grow fast when there is enough water, and they grow 46 (slow) when there is little water. It’s said that popular trees can live for 1,000 years. It still can 47 (stand) after death for 1,000 years. And it won’t rot (腐烂) after falling on the ground for another 1,000 years. That’s why people call 48 (they) hero trees of the desert. Desert popular trees play 49 important role in protecting the environment of the Tarim River. They can prevent the land from 50 (become) a desert, stop dust storms 51 improve the environment. Therefore, people in Xinjiang built a national reserve (保护区) to protect the desert popular forest. 【答案】 41．seen 42．for 43．oldest 44．lived 45．winters 46．slowly 47．stand 48．them 49．an 50．becoming 51．and 【导语】本文主要介绍胡杨树的特点和作用。 41．句意：你见过沙漠里的胡杨树吗？本句时态是现在完成时，动词用过去分词形式，故填seen。 42．句意：如果你说“不”，那么你一定听说过这种树以其在干燥条件下生存的能力而闻名。根据“this kind of tree is famous...its ability to live in a dry condition”可知，此处是be famous for“以……而闻名”，故填for。 43．句意：它们是世界上最古老的树木。根据“They are the...popular trees in the world.”可知，本句给出范围，定冠词the后用形容词最高级，故填oldest。 44．句意：这种受欢迎的树已经存活了6000多万年。本句时态是现在完成时，动词用过去分词形式，故填lived。 45．句意：它可以忍受寒冷的冬天和炎热的夏天。此处与“summers”并列，用名词复数形式，故填winters。 46．句意：水充足时，树长得快，水少时，树长得慢。此处在句中修饰动词，用副词形式，故填slowly。 47．句意：它在人死后仍能存在一千年。情态动词后用动词原形，故填stand。 48．句意：这就是为什么人们称它们为沙漠中的英雄树。此处在动词后作宾语，用宾格，故填them。 49．句意：沙漠流行乔木在保护塔里木河环境中起着重要作用。play an important role in...“在……中扮演重要角色”，故填an。 50．句意：它们可以防止土地变成沙漠，阻止沙尘暴，改善环境。“from”是介词，其后用动名词作宾语，故填becoming。 51．句意：它们可以防止土地变成沙漠，阻止沙尘暴，改善环境。前后构成并列关系，用and连接，故填and。 五、书面表达（25分） 鲸鱼是地球上最壮观的生物之一，但它们正面临严重威胁。请根据内容提示写一篇英语作文。 内容要点： 1. 描述鲸鱼的基本特征（如体型、生活习性）； 2. 举例说明人类过去对鲸鱼的伤害（如过度捕捞overfishing）； 3. 描述当前保护鲸鱼的行动（如设立保护区establish a protected area）； 4. 阐述保护行动取得的成果，并呼吁大家共同保护鲸鱼。 注意： 1. 内容要齐全，条理清楚，语句通顺，不需要逐条翻译； 2. 可适当添加内容提示外的内容； 3. 文中不得出现姓名，校名。 ______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 【答案】                                             Protect Whales, Protect the Ocean   Whales are one of the most spectacular creatures on Earth. They are huge in size—some species can grow over 30 meters long. Whales live in the ocean and are known for their intelligence and complex social behavior.   However, in the past, people hunted whales for their meat and oil. Overfishing caused a sharp drop in the whale population. This brought many whale species close to extinction.   Now, things are changing. Many countries have established protected areas in the ocean. International laws have been made to stop whale hunting. These efforts have helped some whale species recover in number.   Still, whales are not completely safe. We should continue to protect them by raising awareness and reducing pollution. If we all take action, whales will live freely in the ocean for generations to come. 【详解】[总体分析] ①题材：本文是一篇材料作文； ②时态：主要使用一般现在时和一般过去时； ③提示：围绕“特征—伤害—保护—成效与呼吁”四个要点有逻辑展开，表达环保意识。 [写作步骤] 第一步：简要介绍鲸鱼的体型和生活习性； 第二步：说明人类对鲸鱼造成的伤害（如捕捞行为）； 第三步：介绍目前采取的保护措施； 第四步：总结保护成效并发出保护呼吁，表达作者观点。 [亮点词汇] ①in size 在尺寸上 ②be known for 因为……而有名 ③in the past 在过去 ④take action 采取行动 [高分句型] If we all take action, whales will live freely in the ocean for generations to come.（if引导的条件状语从句） 原创精品资源学科网独家享有版权，侵权必究！2 学科网（北京）股份有限公司 / 学科网（北京）股份有限公司 $$ 班级 姓名 学号 分数 Unit 4 Amazing Plants and Animal.（单元拔高卷） （时间：90分钟，满分：100分） 一、完形填空（15分） 阅读下面短文，掌握其大意，然后从各题所给的四个选项中选出一个最佳答案。 On a cold sunny day, I sat in my car and watched dolphins swim in the sea. 1 , I saw some dolphins were beached (搁浅). It was very 2 for them to be out of water. I knew they needed help. 3 thinking too much, I jumped out of my car and ran to the beach. I first called the police but their 4 were far away. It was a life-or-death moment for the dolphins. I didn’t know 5 to help them, so I put a message on the Internet. I hoped someone could see it and come to 6 those lovely animals. Minutes later, three teenage boys from a nearby school came first. It was like light that drove the darkness away. Then more and more people 7 . We decided to save the smaller dolphins first and worked together to move them back to the 8 water successfully. To my surprise, 9 the smaller dolphins were saved, none of them left. They stayed in the water and made strange sounds to help the other dolphins. After we 10 the rescue (救援) work, all the dolphins raised their heads from water and swam around to show their 11 to us. Then, they swam back to the deep sea. It touched me a lot and made my heart 12 . The dolphins had a great sense of helping each other when there was 13 . I realized that our volunteer group was just like the dolphins. On such a cold day, 14 cared about getting wet or dirty. We tried our best to save the dolphins and made sure everyone was safe. People can always 15 our friends—animals. I will never forget this experience. 1．A．Suddenly B．Luckily C．Happily D．Excitedly 2．A．amazing B．important C．dangerous D．necessary 3．A．With B．Without C．By D．On 4．A．eyes B．hands C．ears D．knees 5．A．where B．which C．how D．when 6．A．save B．watch C．enjoy D．find 7．A．changed B．moved C．left D．arrived 8．A．dirtier B．quieter C．cleaner D．deeper 9．A．before B．whenever C．after D．until 10．A．finished B．started C．closed D．tried 11．A．fins B．thanks C．fears D．worries 12．A．broken B．cold C．hurt D．warm 13．A．change B．direction C．trouble D．interest 14．A．anybody B．nobody C．somebody D．everybody 15．A．learn from B．live on C．agree with D．worry about 【答案】 1．A 2．C 3．B 4．B 5．C 6．A 7．D 8．D 9．C 10．A 11．B 12．D 13．C 14．B 15．A 【导语】本文主要介绍了作者和其他人一起努力拯救了搁浅的海豚，而且当遇到麻烦时，海豚也互相帮助，作者也学到人们总是可以向我们的朋友——动物学习。 1．句意：突然，我看到一些海豚搁浅了。 Suddenly突然；Luckily幸运地；Happily开心地；Excitedly兴奋地。根据“I saw some dolphins were beached”可知，是突然看到海豚搁浅了。故选A。 2．句意：离开水对它们来说非常危险。 amazing令人惊奇的；important重要的；dangerous危险的；necessary必要的。根据“for them to be out of water.”可知，离开水对海豚很危险。故选C。 3．句意：我没有想太多，就跳下车，跑向海滩。 With有；Without没有；By通过；On在上面。根据“thinking too much, I jumped out of my car and ran to the beach”可知，是没有想太多，就跑向海滩。故选B。 4．句意：我首先报警，但他们离我很远。 eyes眼睛；hands手；ears耳朵；knees膝盖。根据“were far away”可知，转折词后表示警察离得很远，此处hands有“协助”的意思，符合语境。故选B。 5．句意：我不知道如何帮助他们，所以我在网上发了一条消息。 where哪里；which哪一个；how如何；when什么时候。根据“to help them”可知，是不知道如何帮助海豚。故选C。 6．句意：我希望有人能看到它，来拯救那些可爱的动物。 save拯救；watch看；enjoy享受；find发现。根据“...those lovely animals.”可知，是来拯救这些搁浅的动物。故选A。 7．句意：然后越来越多的人来了。 changed改变；moved移动；left离开；arrived到达。根据“Then more and more people ”可知，是越来越多的人到达这里来拯救海豚。故选D。 8．句意：我们决定先拯救较小的海豚，并共同努力将它们成功地移回更深的水域。 dirtier更脏；quieter更安静；cleaner更干净；deeper更深。根据“move them back to the...water”可知，是让它们移回更深的海域。故选D。 9．句意：令我惊讶的是，小海豚获救后，一只也没离开。 before在……之前；whenever无论何时；after在……之后；until直到。根据“...the smaller dolphins were saved, none of them left”可知，小海豚获救后，它们都没有离开。故选C。 10．句意：在我们完成救援工作后，所有的海豚都从水中抬起头来，游来游去向我们表示感谢。 finished结束；started开始；closed关闭；tried尝试。根据“ the rescue (救援) work”可知，是完成救援工作。故选A。 11．句意：在我们完成救援工作后，所有的海豚都从水中抬起头来，游来游去向我们表示感谢。 fins鳍；thanks感谢；fears害怕；worries担心。根据“all the dolphins raised their heads from water and swam around to show their...”可知，海豚向拯救它们的人表达感谢。故选B。 12．句意：它深深地打动了我，让我的心变得温暖。 broken破的；cold冷的；hurt受伤的；warm温暖的。根据“It touched me a lot and made my heart...”可知，海豚的做法让作者感到很温暖。故选D。 13．句意：当遇到麻烦时，海豚们有一种互相帮助的强烈感觉。 change改变；direction方向；trouble麻烦；interest兴趣。根据“The dolphins had a great sense of helping each other”可知，有困难的时候，互相帮助。故选C。 14．句意：在这么冷的一天，没有人在乎淋湿或弄脏。 anybody任何人；nobody没有人；somebody一些人；everybody每个人。根据“cared about getting wet or dirty”可知，他们都努力拯救海豚，没有人在乎淋湿或弄脏。故选B。 15．句意：人们总会从动物——我们的朋友身上学到很多。 learn from从……学到；live on住在；agree with同意某人；worry about担心。根据“People can always...our friends—animals.”可知，我们总会从朋友身上学到很多。故选A。 二、阅读理解（40分） A Locate (定位) birds with AISome scientists in Australia use Artificial Intelligence (AI) to locate a rare (珍稀) bird called the Plains-wanderer. This will help protect the endangered bird. The Plains-wanderer is a small bird that lives in the grasslands in Australia. AI helps find the birds by listening to their calls. Track (追踪) bees with QR codesScientists placed a very small QR code on the back of the bee to track them when they leave and return homes. It will help them learn more about them. Scientists have had long questions about how far bees travel to collect food. They believe bees can fly as far as 6 miles (10 kilometers) if they need to. But most of the time, bees probably don’t fly so far. ▲ Polar bears in Alaska are tracked by researchers using radio collars (无线电项圈). They found that due to the faster sea ice movement caused by climate change, the bears have to work harder to stay in their homes. Scientists worry that if the situation becomes worse, the polar bear population could drop sharply. They are calling for action to reduce greenhouse effect (温室效应). 16．What does “this” refer to in the first news? A．Calling birds B．Locating birds C．Studying birds D．Protecting birds 17．Why do researchers place QR codes on the backs of the bees? A．To study how far bees travel. B．To find out when bees leave homes. C．To know how fast bees can fly. D．To learn about what food bees collect. 18．Which of the following statements can be put into ▲ ? A．Protect endangered animals B．Reduce greenhouse effect C．Track polar bears with radio collars D．Take action to save polar bears 19．What does the above news focus on? A．Some facts about animals. B．Living habits of different animals. C．Good ways of protecting animals. D．Technologies used in studying animals. 20．In which SECTION of the newspaper can we read the news? A．Travel. B．People. C．Animals. D．Technology. 【答案】16．B 17．A 18．C 19．D 20．D 【导语】本文是一篇说明文，主要介绍了三项利用科技手段研究动物的案例：澳大利亚科学家用 AI 定位珍稀鸟类领鹑、通过二维码追踪蜜蜂的活动范围，以及用无线电项圈追踪阿拉斯加北极熊的生存状况，展现了科技在动物研究中的应用。 16．词句猜测题。根据第一段中“Some scientists in Australia use Artificial Intelligence (AI) to locate a rare (珍稀) bird called the Plains-wanderer. This will help protect the endangered bird.”可知，“this”指代前文“用 AI 定位珍稀鸟类”的行为。故选B。 17．细节理解题。根据第二段中“Scientists have had long questions about how far bees travel to collect food.”可知，研究人员在蜜蜂背部放置二维码是为了研究蜜蜂采蜜时的飞行距离。故选A。 18．推理判断题。根据最后一段内容“Polar bears in Alaska are tracked by researchers using radio collars (无线电项圈). They found that due to the faster sea ice movement caused by climate change, the bears have to work harder to stay in their homes. Scientists worry that if the situation becomes worse, the polar bear population could drop sharply. They are calling for action to reduce greenhouse effect (温室效应).”可知，本段主要讲述了用无线电项圈追踪阿拉斯加北极熊的生存状况。由此可知，C选项“用无线电项圈追踪北极熊”最适合做本段标题。故选C。 19．主旨大意题。通读全文可知，三篇新闻分别介绍了AI、二维码、无线电项圈在鸟类、蜜蜂、北极熊研究中的应用，核心是“研究动物时使用的技术”。故选D。 20．推理判断题。通读全文可知，本文主要介绍了三项利用科技手段研究动物的案例：澳大利亚科学家用 AI 定位珍稀鸟类平原wanderer、通过二维码追踪蜜蜂的活动范围，以及用无线电项圈追踪阿拉斯加北极熊的生存状况，展现了科技在动物研究中的应用。由此可知，我们可以在报纸的科技版面上看到这篇新闻。故选D。 B Many scientists agree that animals have emotions (情感) just like humans. Although there are different ideas about how animals experience emotions, their action showed that animals experience things like happiness, sadness, nervousness and excitement. Whales are quite smart and can show sadness. In 2018, an orca (虎鲸) mother was seen carrying her dead child around for weeks as she was sad about its death. Another example shows that whales can have sympathy (同情心) toward other animals. Humpback whales (座头鲸) have been watched fighting with orcas to protect seals (海豹). They keep the seals out of danger by lifting them out of the water on their backs. Elephants are also known for their ability to show emotions. When an older elephant passes away, its family often stay by the body for a long time, and members will softly touch the dead elephant’s body. And like whales, elephants show sympathy by joining in protective action toward other animals. For example, they’re famous for protecting people from other wildlife. In a study, a group of mice that had experienced electric shocks froze when they saw another group getting shocked. The action was considered to be an empathetic response (共情反应) as the mice became uncomfortable when seeing others in bad situations. Animals are able to show their emotions. They use different kinds of ways such as body language, making sounds and action to show their feelings. At the same time, it is important for human beings to understand the emotions of animals and treat them with kindness. 21．How do scientists learn that animals have emotions? A．By watching animals’ action. B．By experiencing animals’ feelings. C．By discussing with other scientists. D．By studying animals’ living conditions. 22．What does the underlined word “lifting” in Paragraph 2 mean? A．Picking. B．Raising. C．Passing. D．Throwing. 23．What are the same things among the three animals mentioned? A．They are all kind to others. B．They are all helpful to human beings. C．They all protect people from other wildlife. D．They all use body language to express emotions. 24．What would be the best structure of the passage? A． B．C． D． 25．What would be the best title for the passage? A．Why do animals fight with others? B．What are the secrets behind animals? C．Do animals also show their emotions? D．Can animals understand people’s feelings? 【答案】21．A 22．B 23．A 24．C 25．C 【导语】本文讲述了科学研究证实动物和人类一样具有丰富的情感能力，并通过具体案例展示了不同动物表达情感的方式，最后呼吁人类理解和善待动物。 21．细节理解题。根据“an orca (虎鲸) mother was seen carrying her dead child around for weeks”和“Humpback whales (座头鲸) have been watched fighting with orcas to protect seals (海豹).”可知，虎鲸妈妈被看到带着她死去的孩子四处游荡了好几个星期，人们曾看到座头鲸为了保护海豹而与逆戟鲸搏斗。所以是通过观察动物的行为来得知动物有情感。故选A。 22．词句猜测题。根据“They keep the seals out of danger by lifting them out of the water on their backs.”可知，座头鲸把海豹背出水面，使它们远离危险。所以划线词意为“托起、举起”，与“Raising”同义。故选B。 23．细节理解题。根据文章内容可知，座头鲸保护海豹；大象哀悼死去的成员，并保护人类免受其他野生动物伤害；老鼠看到同类受电击会僵住。所以它们的相同点是表现出对他者的善意。故选A。 24．篇章结构题。根据文章内容可知，第一段提出观点——动物有情感；第二、三、四段列举鲸、大象和老鼠的例子来说明该观点；第五段总结全文并呼吁人类善待动物。故选C。 25．最佳标题题。通读全文可知，本文讲述了科学研究证实动物和人类一样具有丰富的情感能力，并通过具体案例展示了不同动物表达情感的方式，所以C项“动物也会表达它们的情感吗？”适合作标题。故选C。 C As we all know, there is very short of water in lots of areas in Africa. However, there is a magical tree which can help to solve the water problem. It is called the “sacred (神圣的) tree of Africa”—baobab tree (猴面包树). A baobab tree is huge like an upside-down carrot. It can grow so large that it requires more than 40 people holding hands to circle it. Actually, most baobab trees are not very tall, only about ten meters. A baobab tree is full of treasures. It is said that if everyone in Africa had a 10-meter-tall baobab tree, it would solve more than 50% of their food problems. In hot Africa, water is the most needed. When the rainy season comes, the baobab tree starts to hold water in its body. The baobab tree is said to be the most water-holding tree. It can hold thousands of kilograms of water in its body. Local people usually cut a hole in the tree with a knife and get clean water from it. The baobab tree leaves are a bit like spinach (菠菜) leaves. True to its Chinese name, the fruit of the baobab tree tastes like bread. But it’s not like bread with cream. It tastes dry. Local people seldom get stomach problems because of eating it. Baobab trees are not only useful for humans, but for animals in nature! Their fruit can be good food for monkeys, lizards and other African animals. Their leaves can also be eaten to get enough water. The branches of a baobab look like a root, making it a perfect home to birds. Indeed, baobab trees are the “tree of life” for Africans. The tall, straight baobab trees act like lighthouses. As the African saying goes, “Baobab trees lit up against the dark ‘African Sky’.” They light up not only the night sky, but also our respect for nature. 26．What does a baobab tree look like? A．A monkey. B．A human. C．A carrot. D．A piece of bread. 27．What does Paragraph 3 mainly talk about? A．How useful the baobab trees are. B．How serious the problems are in Africa. C．What the fruit of baobab trees tastes like. D．How Africans get water from baobab trees. 28．Which of the following sentences is an opinion? A．Many places in Africa are very short of water. B．Most baobab trees are not very tall, only about ten meters. C．Baobab trees are useful both for humans and animals in nature! D．A baobab tree can hold thousands of kilograms of water in its body. 29．What is the structure of the article? (① = Paragraph 1  ② = Paragraph 2,...) A． B． C． D． 30．What is the best title for the article? A．Africans in Need of Water B．The Sacred Tree of Africa C．A Magic Tree in Danger D．The Most Water-holding Tree 【答案】26．C 27．A 28．C 29．B 30．B 【导语】本文是一篇说明文。文章主要介绍了非洲圣树——猴面包树。 26．细节理解题。根据第二段“A baobab tree is huge like an upside-down carrot.”可知猴面包树像一根胡萝卜。故选C。 27．主旨大意题。通读第三段，根据“A baobab tree is full of treasures.”可知此段主要介绍了猴面包树有多有用。故选A。 28．细节理解题。根据第四段“Baobab trees are not only useful for humans, but for animals in nature!”可知猴面包树不仅对人类有用，对自然界的动物也有用。这是对猴面包树的看法。故选C。 29．篇章结构题。通读全文可知，文章第一段点题，提到猴面包树；第二、三、四段介绍猴面包树的形状和用处，第五段总结猴面包树的价值，B选项符合题意。故选B。 30．最佳标题题。通读全文，根据第一段“ It is called the “sacred (神圣的) tree of Africa”— baobab tree (猴面包树).”可知本文主要介绍了非洲圣树——猴面包树。故选B。 D What’s the biggest spider in the world? The tarantula (狼蛛)! The biggest kind can grow up to 12 inches (30 cm) long. Where tarantulas live 31 . Many live in forests, and others live in deserts. Some tarantulas live in holes in the ground. Others live in trees. Knowing about its body A tarantula has a lot of hairs. The hairs help it feel things that move. 32 . A tarantula has a hard covering (覆盖物) on its body. As it grows, the covering gets too small for it and falls down from its body. Its new covering will get hard soon. 33 Tarantulas come out to look for food at night. They eat frogs, mice, small snakes and so on. They also eat spiders —even other tarantulas. When an animal comes near, the tarantula jumps and makes the animal stop moving. 34 . It cuts up the animal into pieces with its little arms and enjoys a delicious meal. How safe tarantulas are Many people are afraid of tarantulas because they are so big. 35 . People are a bigger danger to tarantulas than any other animal. We should protect them. These amazing tarantulas are important to the nature. 根据语篇内容，从下面所给的选项中选出能填入空白处的最佳选项，使短文语意连贯。选项中有一项为多余项。 A．How fast tarantulas move B．Learning about eating habits C．Then it pulls the animal back home D．The hairs near its mouth also help it taste and smell E．But they won’t hurt you if you leave them alone F．Tarantulas live in different places around the world 【答案】31．F 32．D 33．B 34．C 35．E 【导语】本文主要介绍了狼蛛。 31．根据“Many live in forests, and others live in deserts. Some tarantulas live in holes in the ground. Others live in trees.”可知，狼蛛生活在不同的地方。选项F“狼蛛生活在世界各地”符合语境，故选F。 32．根据“A tarantula has a lot of hairs. The hairs help it feel things that move.”可知，是在介绍狼蛛的毛发。选项D“嘴巴附近的毛发也有助于它的味觉和嗅觉”符合语境，故选D。 33．根据“Tarantulas come out to look for food at night. They eat frogs, mice, small snakes and so on. ”可知，是在介绍狼蛛的食物。选项B“了解饮食习惯”符合语境，故选B。 34．根据“When an animal comes near, the tarantula jumps and makes the animal stop moving”可知，是在介绍狼蛛的捕食情况。选项C“然后它把动物拉回家”符合语境，故选C。 35．根据“How safe tarantulas are”可知，介绍狼蛛一般不伤害人。选项E“但如果你不打扰它们，它们就不会伤害你”符合语境，故选E。 三、任务型阅读（10分） What will the weather be like? Some animals can tell the weather. If people want to know the weather, they can watch the animals. When the weather is not good, seabirds will stay on the shore (海岸). They don’t like to fly in the strong wind. They may stay in a tree when heavy rain is coming. But when people see seabirds flying high in the sky, they know it will be a sunny day. When the rain is on the way, the ants will move their houses from the low places to the high places, because they worry that rain will submerge (浸没) their homes. When it’s going to rain, the frogs will stay in the water and make big noise with “croak, croak”. But if it is a fine day, the frogs will be out of the water and make big noise. People living on the farm can also watch the animals to tell the weather. When heavy rain is coming, the chickens will make big noise with “peep, peep” and run here and there. 根据语篇内容，回答问题。（每小题答案不超过10个词） 36．What may the seabirds do when the weather is sunny? 37．Why are ants moving their houses to the high places when the rain is on the way? 38．Where will the frogs stay when it’s going to rain? 39．What may the weather be like when the chickens run here and there? 40．Can some animals tell us what the weather will be like? 【答案】 36．Fly high in the sky. 37．Because they worry that rain will submerge their homes. 38．In the water. 39．It may rain heavily. 40．Yes, they can. 【导语】本文主要讲述了某些动物能够通过它们的行为来预示天气变化，人们可以通过观察这些动物的行为来了解天气情况。 36．根据文章中的“But when people see seabirds flying high in the sky, they know it will be a sunny day.”可知，当天气晴朗时，海鸟会在天空中高飞。故填Fly high in the sky. 37．根据文章提到“When the rain is on the way, the ants will move their houses from the low places to the high places, because they worry that rain will submerge their homes.”，这表明蚂蚁在雨即将来临时会把家搬到高处，是因为它们担心雨水会淹没它们的家。故填Because they worry that rain will submerge their homes. 38．根据文章中提到“When it’s going to rain, the frogs will stay in the water and make big noise with ‘croak, croak’.” 这表明当下雨时，青蛙会待在水里。故填In the water. 39．根据文章中的“When heavy rain is coming, the chickens will make big noise with ‘peep, peep’ and run here and there.”可知，当鸡到处乱跑并发出“叽叽”声时，可能意味着即将下大雨。故填It may rain heavily. 40．根据文章首句“What will the weather be like? Some animals can tell the weather. If people want to know the weather, they can watch the animals.”明确指出，有些动物能够预示天气，人们可以通过观察它们来了解天气情况。故填Yes, they can. 四、短文填空（10分） 阅读下面材料，按照句子结构的语法情况和上下文连贯的要求，在空白处填入适当的词或用括号中所给词的正确形式填空。每空不超过两词。 Have you ever 41 (see) desert popular trees (胡杨树)? If you say “no”, then you must have heard that this kind of tree is famous 42 its ability to live in a dry condition. Desert popular trees grow near the Tarim River in Xinjiang. They are the 43 (old) popular trees in the world. This kind of popular tree has 44 (live) for more than 60,000,000 years. It can live through cold 45 (winter) and hot summers. The desert popular tree has a large root (根) network that can take in water. The trees grow fast when there is enough water, and they grow 46 (slow) when there is little water. It’s said that popular trees can live for 1,000 years. It still can 47 (stand) after death for 1,000 years. And it won’t rot (腐烂) after falling on the ground for another 1,000 years. That’s why people call 48 (they) hero trees of the desert. Desert popular trees play 49 important role in protecting the environment of the Tarim River. They can prevent the land from 50 (become) a desert, stop dust storms 51 improve the environment. Therefore, people in Xinjiang built a national reserve (保护区) to protect the desert popular forest. 【答案】 41．seen 42．for 43．oldest 44．lived 45．winters 46．slowly 47．stand 48．them 49．an 50．becoming 51．and 【导语】本文主要介绍胡杨树的特点和作用。 41．句意：你见过沙漠里的胡杨树吗？本句时态是现在完成时，动词用过去分词形式，故填seen。 42．句意：如果你说“不”，那么你一定听说过这种树以其在干燥条件下生存的能力而闻名。根据“this kind of tree is famous...its ability to live in a dry condition”可知，此处是be famous for“以……而闻名”，故填for。 43．句意：它们是世界上最古老的树木。根据“They are the...popular trees in the world.”可知，本句给出范围，定冠词the后用形容词最高级，故填oldest。 44．句意：这种受欢迎的树已经存活了6000多万年。本句时态是现在完成时，动词用过去分词形式，故填lived。 45．句意：它可以忍受寒冷的冬天和炎热的夏天。此处与“summers”并列，用名词复数形式，故填winters。 46．句意：水充足时，树长得快，水少时，树长得慢。此处在句中修饰动词，用副词形式，故填slowly。 47．句意：它在人死后仍能存在一千年。情态动词后用动词原形，故填stand。 48．句意：这就是为什么人们称它们为沙漠中的英雄树。此处在动词后作宾语，用宾格，故填them。 49．句意：沙漠流行乔木在保护塔里木河环境中起着重要作用。play an important role in...“在……中扮演重要角色”，故填an。 50．句意：它们可以防止土地变成沙漠，阻止沙尘暴，改善环境。“from”是介词，其后用动名词作宾语，故填becoming。 51．句意：它们可以防止土地变成沙漠，阻止沙尘暴，改善环境。前后构成并列关系，用and连接，故填and。 五、书面表达（25分） 鲸鱼是地球上最壮观的生物之一，但它们正面临严重威胁。请根据内容提示写一篇英语作文。 内容要点： 1. 描述鲸鱼的基本特征（如体型、生活习性）； 2. 举例说明人类过去对鲸鱼的伤害（如过度捕捞overfishing）； 3. 描述当前保护鲸鱼的行动（如设立保护区establish a protected area）； 4. 阐述保护行动取得的成果，并呼吁大家共同保护鲸鱼。 注意： 1. 内容要齐全，条理清楚，语句通顺，不需要逐条翻译； 2. 可适当添加内容提示外的内容； 3. 文中不得出现姓名，校名。 ______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 【答案】                                             Protect Whales, Protect the Ocean   Whales are one of the most spectacular creatures on Earth. They are huge in size—some species can grow over 30 meters long. Whales live in the ocean and are known for their intelligence and complex social behavior.   However, in the past, people hunted whales for their meat and oil. Overfishing caused a sharp drop in the whale population. This brought many whale species close to extinction.   Now, things are changing. Many countries have established protected areas in the ocean. International laws have been made to stop whale hunting. These efforts have helped some whale species recover in number.   Still, whales are not completely safe. We should continue to protect them by raising awareness and reducing pollution. If we all take action, whales will live freely in the ocean for generations to come. 【详解】[总体分析] ①题材：本文是一篇材料作文； ②时态：主要使用一般现在时和一般过去时； ③提示：围绕“特征—伤害—保护—成效与呼吁”四个要点有逻辑展开，表达环保意识。 [写作步骤] 第一步：简要介绍鲸鱼的体型和生活习性； 第二步：说明人类对鲸鱼造成的伤害（如捕捞行为）； 第三步：介绍目前采取的保护措施； 第四步：总结保护成效并发出保护呼吁，表达作者观点。 [亮点词汇] ①in size 在尺寸上 ②be known for 因为……而有名 ③in the past 在过去 ④take action 采取行动 [高分句型] If we all take action, whales will live freely in the ocean for generations to come.（if引导的条件状语从句） 原创精品资源学科网独家享有版权，侵权必究！2 学科网（北京）股份有限公司 / 学科网（北京）股份有限公司 $$