Unit 7 The natural world课时作业练习（一） 2025-2026学年译林版（2024）八年级英语上册

Unit 7 The natural world 作业 1 Welcome to the unit 一、1. penguin 2. climate 3. rainfall 4. coral 5. ecosystem 二、1. anything 2. natural 3. kinds 4. really 5. to find 三、1. C答句意为“因为气候很差，在那儿生活是很困难的”。climate 气候。故选 C。 2. B “half of + 名词（短语）”作主语，谓语动词的形式要根据 of 后的名词（短语）确定；friends 是复数名词，谓语动词用原形。故选 B。 3. B 答句意为“它是不同动物的家园，例如狮子和长颈鹿”。be home to…是……的家园。故选 B。 4. A 句意：令人吃惊的是沙漠里的动物从树叶中得到水分。leaf 树叶。故选 A。 5. A 句意：——据报道，过去地球上失去了许多动物。——听到这个我很遗憾！我们应该采取行动来拯救动物。I am sorry to hear that 听到这个我很遗憾。故选 A。 四、1. own 2. through 3. look 4. parents 5. world 6. hear 7. eggs 8. take 9. strongly 10. return 五、1. D 根据“Polar bears have a very good sense of smell.”可知，北极熊有很好的嗅觉。故选 D。 2. A 根据“This is happening because of global warming. Besides, they also have to face pollution, being hunted and so on.”可知，北极熊面临着全球变暖、污染、被猎杀等问题。故选 A。 3. D 根据“During summer, polar bears sleep longer in the day, because they are able to find their food more easily at night.”可知，在夏天，北极熊在晚上更容易找到食物。故选 D。 作业 2 Reading(1) 一、1. (to)return 2. store 3. tons 4. harming 5. hold 6. Sadly 7. act 8. trap 9. lung 10. around 二、1. living 2. to go 3. work 4. feeding 5. not throw 三、1. A根据“I forgot my friend's birthday and didn't prepare any gifts”和常识可知，忘记朋友生日且没有准备礼物是一件不幸的事。故选 A。 2. A空前“we have fewer chances to absorb(吸收) vitamin D through sunlight”是空后“we should take some vitamin D capsules, especially during winter”的原因，空后表示结果。故选 A。 3. B get rid of 清除。故选 B。 4. A plenty of 大量的。故选 A。 5. C That's right 没错；No reason 不为什么；Don't worry 别担心；Let me see 让我想想。根据空后句“I'm sure you'll make it.”可知，空处应是说“别担心”。故选 C。 四、1. C根据“it is not this twice-a-year journey that poses the greatest risk to these birds”可知，对这些鸟造成最大风险的并不是这种一年两次的旅行，画线部分意为“造成”，和 cause 意义相近。故选 C。 2. B根据“Besides traps, hunters also use electronic calls to catch birds. They make bird sounds to attract the real birds. Some hunters also use nets to catch birds”可知选 B。 3. A根据“Today, it has mostly eliminated(消除) bird hunting, and as a result, birdwatching is becoming popular there.”可知选 A。 五、1. Because Lip-Lip was bigger and stronger than him. /Because he was smaller and weaker than Lip-Lip. 2. He led Lip-Lip to his mother. 3. Unhappy and angry. 4. Because he wanted to be with his mother. 5. He may keep away from people. (答案不唯一) 作业 3 Reading(2) 一、1. rid 2. Sadly 3. includes 4. around 5. Therefore 二、1. pollution 2. listener 3. to protect 4. worse 5. nearly 三、1. A根据句意可知，书看完后还给了图书馆。故选 A。 2. D答句意为“真遗憾，你早上应当出去呼吸新鲜的空气”。take in 吸入。故选 D。 3. C thousand 被具体基数词修饰时，用单数形式，且不与 of 连用，空前有 three，所以第一空填 thousand；分数的表达：分子是基数词，分母是序数词，当分子大于 1 时，分母要变为复数，所以“三分之二”表达为“two thirds”。故选 C。 4. A cover an area of 占地面积。故选 A。 5. C Nice to know that 很高兴得知这个消息；It's kind of you 你真好；Have a good trip 旅途愉快；Congratulations 祝贺。故选 C。 四、1. hold plenty of salt water 2. make up about a third 3. plays an important role 4. take action 5. We call forests the "lungs" of the earth. 五、1. homes 2. ground 3. also 4. important 5. provide 6. danger 7. none 8. because 9. move 10. happening 六、1. D根据下文的介绍和选项可知，此处应是指观鸟在中国变得流行起来。故选 D。 2. C根据“Many bird lovers visit the park”和选项可知，此处应是指观看鸟类。故选 C。 3. B work as 担任。故选 B。 4. B wait for 等待；look for 寻找；ask for 要求；prepare for 为……作准备。根据“different kinds of birds”和选项可知，此处应是指寻找鸟类。故选 B。 5. D “He grew up in Beijing”和“he didn't know there were so many kinds of birds in the city”是转折关系。故选 D。 6. A show interest in… 对……表现出兴趣。故选 A。 7. B 根据“seeing a bird that I am looking for”和选项可知，此处应是指最终看到了正在寻找的鸟。故选 B。 8. D根据空后的“more than 500 species(种)”和选项可知，此处应是指记录了 500 多种。故选 D。 9. C根据“Beijing is on an important flyway”和选项可知，此处应是指穿过北京。故选 C。 10. D根据语境可知，他希望更多的人喜欢观鸟，并帮助保护鸟类的生存空间。living space 生存空间。故选 D。 七、1. C 2. E 3. D 4. F 5. A 学科网（北京）股份有限公司 $$ Unit 7 The natural world课时作业练习（一） 作业 1 Welcome to the unit 基础过关 一、根据句意及所给中文提示写出句中所缺单词。 1.The ______ is a quite large black and white seabird that lives in the Antarctic. (企鹅) 2.The ______ here is very great, so all of us like living here. (气候) 3.The plants can't grow well because of much ______. (降雨量) 4.Beyond the ______ reef, the open sea was dark blue. (珊瑚) 5.Can you give me some advice on how to keep the balance of the ______? (生态系统) 二、用括号中所给单词的正确形式填空。 1.Don't worry so much about this exam. Worry never fixes ______. (something) 2.The beauty of the ______ view is beyond praise. It's amazing. (nature) 3.Let's divide the rubbish into different ______ before throwing it away. (kind) 4.A lot of wild animals are in danger and ______ need our protection. (real) 5.Mr Li made a survey ______ out the students' favourite activity. (find) 综合运用 三、单项选择。 ( )1. —Why don't the animals like living in the desert? —Because the ______ is very bad, and it's very difficult to live there. A. sea B. water C. climate D. rainfall ( )2. —The talent show is becoming hotter and hotter online. —Exactly. Half of our friends ______ interested in it. A. is B. are C. was D. am ( )3. —What do you know about the grassland? —It is ______ to different animals like lions and giraffes. A. house B. home C. family D. place ( )4. It is amazing that the animals in deserts get water from the ______ of the trees. A. leaves B. land C. grass D. pool ( )5. —It's reported that the earth lost many animals in the past. —______. We should take action to save animals. A. I am sorry to hear that B. No way C. Take care D. Come on 四、缺词填空。(每空一词) Penguins live together, but each pair has a little piece of ground of their o 1 . When a penguin wants to walk t 2 its neighbour's ground, it must ask for permission(许可). If it does not do that, it will have to fight. Most of the time, penguins live in water. They eat shellfish and l 3 after their children carefully. All penguins are good p 4 —male(雄性的) penguins are among the most dedicated fathers in the w 5 . They walk in the Antarctic water. They choose their wives in the dark. They can only h 6 them—not see them. Then female penguins lay their e 7 and are away for about two months. Males t 8 care of the eggs. If the eggs get cold, there will be no chicks. There is no food. Snow falls heavily(猛烈地) and wind blows s 9 —sometimes at 150 kilometres an hour. Male penguins do not move. When females r 10 from the sea, they will find their husbands. Male penguins never fight—unless a penguin leaves a chick alone. They then fight because they all want it. They are strange but wonderful birds. 能力提升 5、 阅读理解。 Do you think of white when someone talks about a polar bear? In fact, the polar bear does not have white fur. It just seems to be white. Polar bears have a very good sense of smell. It helps them find food. During summer, polar bears sleep longer in the day, because they are able to find their food more easily at night. Usually, after a meal, polar bears have a short sleep. A polar bear can have 2-3 babies at a time. They live with their mothers until they are about two and a half years old. However, polar bears will die out soon because of people. There are only 20,000 to 25,000 polar bears in the world. Those polar bears are trying to survive(生存) today. The number of them is becoming smaller and smaller because of the loss of sea ice—polar bears mostly live on the sea ice, not land ice. This is happening because of global warming. Besides, they also have to face pollution, being hunted and so on. Some people don't care, but other people want to save polar bears. Join them and try to make the world a better place for those beautiful and lovely animals. ( )1. What do polar bears have? A. A good sense of touch. B. A good sense of hearing. C. A good sense of sight. D. A good sense of smell. ( )2. According to the passage, what problems are polar bears facing? A. Pollution and global warming. B. Lack of sleep and being hunted. C. Lack of food and the loss of land ice. D. A bad sense of smell and pollution. ( )3. What can we learn from the passage? A. Polar bears' fur is white. B. Polar bears can have more than three babies at a time. C. Polar bears have a good, happy life. D. It's easier for polar bears to find food at night in summer. 作业 2 Reading(1) 基础过关 一、根据句意及所给中文提示写出句中所缺单词。 1.Now we can use AI technology to help the missing children ______ home. (返回) 2.Some animals usually ______ food when winter is coming. (储存) 3.—How many ______ does this elephant weigh? —Sorry, I don't know. (吨) 4.Air pollution is ______ our earth. We should do something to stop it. (伤害) 5.Some schools usually ______ activities such as camping trips or parties on Children's Day to bring fun and joy to students. (举行) 6.______, a man lost his life in the accident. How careless he was! (不幸地) 7.We should ______ to protect the animals in danger. (行动) 8.How did you get caught in this ______? (陷阱) 9.After a few ______ tests, I was allowed to get into the pool. (肺部) 10.It took me ______ ten years to get through. (大约) 二、用括号中所给单词或短语的正确形式填空。 1.People with basic ______ skills can go more smoothly through life. (live) 2.I'm too busy ______ birdwatching now. Maybe we can go there next time. (go) 3.Eighty per cent of the students ______ hard every day. (work) 4.There won't be any wolves in the wild if people keep ______ them snacks. (feed) 5.I have no idea how to make my son ______ his toys all over the floor. (not throw) 综合运用 三、单项选择。 ( )1. (2025·江苏扬州梅岭集团调研), I forgot my friend's birthday and didn't prepare any gifts. A. Sadly B. Especially C. Easily D. Luckily ( )2. As autumn ends, we have fewer chances to absorb(吸收) vitamin D through sunlight. , we should take some vitamin D capsules, especially during winter. A. Therefore B. Otherwise C. However D. Moreover ( )3. —Why do you put the plants here? —Because they can help ______ air pollution. A. get out of B. get rid of C. take out of D. take care of ( )4. —You have ______ toys, don't you? —Yeah. I can share them with my friends. A. plenty of B. many of C. a bit D. a little ( )5. —I'm afraid I can't do well in the exams. —! I'm sure you'll make it. A. That's right B. No reason C. Don't worry D. Let me see 能力提升 四、阅读理解。 Every summer, about three billion birds migrate(迁徙) from North Africa to Europe and Asia. In winter, they return to North Africa. As they travel from one place to another, they use the sun, stars, smells and landforms(地形) to find the way. The migration is long and difficult, and some of the birds die during each trip. However, it is not this twice-a-year journey that poses the greatest risk to these birds. The main danger to the birds comes from hunters all over the Mediterranean(地中海地区), where lots of migratory birds are killed every year. As a result, the bird population is falling. In countries along the Mediterranean, many migratory birds are illegally(非法地) trapped or killed. Besides traps, hunters also use electronic calls to catch birds. They make bird sounds to attract the real birds. Some hunters also use nets to catch birds as they fly close to the sea. “There are no birds,” said one local man. “We walk for hours without seeing any. It's really scary.” Birds are in danger, and many countries are working to solve this problem. In the European Union, hunting migratory birds is illegal in some countries, while in others, it is strictly controlled—the birds can only be hunted at a certain time of year. What's more, many nature-protection groups are making sure that laws are obeyed. This has been successful in many places. For example, Sicily, an island of Italy, was once a place where illegal bird hunting was common. Today, it has mostly eliminated(消除) bird hunting, and as a result, birdwatching is becoming popular there. Wildlife organizations around the Mediterranean are helping to bring about change. “Hunting bans(禁令) are working,” said Martin Schneider-Jacoby, a bird scientist. “But there is still more to do. We hope to stop hunting and protect birds' living areas all over the Mediterranean. If this can be done, the number of birds will increase. There's a long way to go, but there is hope.” ( )1. The underlined word “poses” probably means “” in Paragraph 2. A. connects B. compares C. causes D. cures ( )2. What are mentioned as tools for trapping and killing birds? ①Traps. ②Guns. ③Nets. ④Electronic calls. A. ①②③ B. ①③④ C. ①②④ D. ②③④ ( )3. What change has taken place in Sicily? A. Bird hunting is hardly seen in Sicily. B. Some rare birds can be seen in Sicily. C. Hunters try to attract more birds to the area. D. The weather has become more pleasant in the area. 五、任务型阅读。 The little wolf, White Fang, made an enemy of the dog, Lip-Lip. Lip-Lip attacked him whenever he could. He was bigger and stronger than White Fang and always won their fights. White Fang knew that he could not win a fight against Lip-Lip. He thought that he had to do something else to teach the dog a lesson. One day, he was playing at a river bank when he saw Lip-Lip come. He suddenly got a good idea. He pretended(假装) to be hurt and unable to run fast. When Lip-Lip ran after him, he led Lip-Lip to the place where his mother stayed. When Lip-Lip got close to her, she turned Lip-Lip over and bit him until she let him go, but White Fang had a bigger problem. Lip-Lip was the leader of the other dogs. They followed him and obeyed him. None of them would become friends with White Fang. Whenever he came near them, they attacked him. White Fang was always alone. He was never allowed to play with the other dogs. This made him unhappy and angry. He often forgot how to behave well. Several days later, White Fang saw a man take his mother on a small boat. He tried to follow them. He jumped into the river and swam after the boat. Another man came after White Fang on his boat. He lifted White Fang out of the water. White Fang tried to get away from the man, but the man hit him and threw him onto the boat. White Fang was now very angry because he wanted to be with his mother. He forgot how powerful men were, and he bit the man. The man was so angry that he beat White Fang again and again. The man hurt him badly. White Fang finally learned that he couldn't bite a man because if he did, he would be beaten badly. —Adapted from White Fang 回答下列问题，每题答案不超过10个词。 1.Why did White Fang always lose the fights with Lip-Lip? 2.What did White Fang do when he could not win a fight against Lip-Lip? 3.How did White Fang feel when the other dogs wouldn't be friends with him? 4.Why did White Fang follow the boat with his mother on it? 5.What may White Fang do according to the last paragraph? 作业 3 Reading(2) 基础过关 一、根据句意及所给中文提示写出句中所缺单词。 1.I want to get ______ of these old clothes. They take up too much space. (丢弃，清除) 2.______, tigers will disappear in the world if people don't do anything. (不幸地) 3.Do you know the sunlight ______ seven different colours? (包括) 4.There are ______ one thousand students in our school. (大约) 5.We do not have enough money. ______, we cannot afford to buy the new car. (因此) 二、用括号中所给单词的正确形式填空。 1.People in this area live a long life because they eat natural food without ______. (pollute) 2.You should be a good ______ when you are talking to others. (listen) 3.It's important for us ______ the ocean. (protect) 4.There is nothing ______ than going out in the cold with wet clothes. (bad) 5.Suddenly, a strong wind came from behind. I lost my umbrella in the wind and I ______ fell over. (near) 综合运用 三、单项选择。 ( )1. We ______ the books to the library after we read them. A. returned B. pointed C. waved D. caught ( )2. —I'm afraid I'm too busy to go walking in the park. —It's a pity. You should go out to ______ the fresh air in the morning. A. take up B. take off C. take on D. take in ( )3. The number of the fans going to this concert is about three . And ______ of them are girls. A. thousand; two third B. thousands; two third C. thousand; two thirds D. thousands; two thirds ( )4. Mount Lushan ______ an area of over 300 square kilometres, which is famous for its beautiful views. A. covers B. presents C. compares D. provides ( )5. —The winter vacation is coming in a few days. I'll visit the oceans. — ! A. Nice to know that B. It's kind of you C. Have a good trip D. Congratulations 四、根据中文意思完成句子。 1.海洋能够容纳大量的海水，真是令人惊叹。 It's amazing that the ocean can ______. 2.森林约占地球陆地面积的三分之一。 Forests ______ of the earth's land area. 3.海洋在减缓气候变化中发挥着重要作用。 The ocean ______ in slowing down climate change. 4.是时候采取行动保护海洋了。 It's time to ______ to protect the ocean. 5.我们称森林是地球之“肺”。(the “lungs” of the earth) 五、缺词填空。(每空一词) About 75% of all types of animals come from rainforests. Thousands of animals make their h 1 in rainforests. There are many beautiful birds, insects and so on. Many of them live in trees, over 30 metres from the g 2 . There are a 3 thousands of different plants, and lots of them are tall trees! Rainforests are very i 4 to us. We need them! Trees and other plants in rainforests help to make the air that we breathe. They stop the world getting too cold or too hot. They p 5 us with wood, rubber, fruit and many of our medicines. Sadly, in many places, rainforests are in d 6 . For example, many years ago there was a large rainforest in Java(爪哇岛). There were thousands of different plants and animals in the forest, but now there are n 7 . People cut down trees b 8 they wanted to grow rice. They also wanted to grow rubber trees to make rubber. Animals had to m 9 to other places, but many of them disappeared forever. The same thing is h 10 now in many other parts of the world. Rainforests really need our help. 能力提升 6、 完形填空。 Birdwatching has fans all over the world. In recent years, it has become 1 in China. The Olympic Forest Park in Beijing is one of the best places for birdwatching. Many bird lovers visit the park to take photos or just to 2 them. Guan Xiangyu is one of them. He works 3 an organizer for bird lovers. He spends half a year in Beijing and the other half travelling with his teams, 4 different kinds of birds. Guan started birdwatching 10 years ago. He grew up in Beijing5 he didn't know there were so many kinds of birds in the city. Guan began to show 6 in birds after his college teacher advised him to join in a bird protection activity. "For me, the biggest joy is to share the excitement of 7 seeing a bird that I am looking for," Guan said. Beijing is a good place for birds. And experts(专家) 8 more than 500 species(种) there. The main reason is that Beijing is on an important flyway. Millions of birds migrate north and south every year. When doing this, they pass 9 Beijing. Guan hopes more people will enjoy birdwatching and help protect birds' 10 space. Birds are part of Guan's life. "I will always see them as my friends," Guan said. ( )1. A. exciting B. cheerful C. excellent D. popular ( )2. A. feed B. catch C. watch D. please ( )3. A. for B. as C. with D. of ( )4. A. waiting for B. looking for C. asking for D. preparing for ( )5. A. so B. and C. or D. but ( )6. A. interest B. way C. answer D. sense ( )7. A. quickly B. finally C. easily D. usually ( )8. A. complete B. choose C. offer D. record ( )9. A. into B. on C. through D. down ( )10. A. lively B. alive C. live D. living 七、信息还原。 阅读下面短文，从短文后所给的选项中选出能填入短文空白处的最佳选项，使短文通顺连贯，其中有两项是多余选项。 Many have heard of shark fin soup. But do you realize that you're killing a whole shark each time you enjoy a bowl of shark fin soup? When people catch sharks, they cut off their fins and throw the sharks back into the ocean. 1 Without a fin, a shark can no longer swim and slowly dies. Sharks are at the top of the food chain in the ocean's ecosystem. 2 Many believe that sharks can never be endangered because they are the strongest in their food chain. 3 The number of some kinds of sharks has fallen by over 90 per cent in the last 20 to 30 years. Environmental protection groups around the world, such as WildAid and the WWF, are teaching the public about "finning". 4 So far, no scientific studies have shown that shark fins are good for health, so why eat them? 5 A. Help save the sharks! B. They are in great danger now. C. This is not only cruel, but also harmful to the environment. D. But in fact, around 70 million sharks are caught and traded in this industry every year. E. If the number of them drops too low, there will be danger to all ocean life. F. They have even asked governments to make laws to stop the sale of shark fins. G. We should take action to protect the ocean. 学科网（北京）股份有限公司 $$