Unit 4 Section B（Project）（同步课时作业）-2025-2026学年八年级英语上册同步教学精品课件（人教版2024）

Unit 4 Amazing Plants and Animals Section B Project课时作业 1、 单项选择。 1．—I studied so hard, but I didn’t pass the exam. —Oh no! That’s too bad. You must be really ________. A．surprised B．disappointed C．interested D．excited 【答案】B 【详解】句意：——我学习很努力，但还是没通过考试。——哦不！太糟糕了。你一定非常失望。 考查形容词辨析。surprised惊讶的；disappointed失望的；interested感兴趣的；excited兴奋的。根据“—I studied so hard, but I didn’t pass the exam. —Oh no! That’s too bad. You must be really...”可知，努力学习却没通过考试，这种情况通常会让人产生失落情绪。“disappointed”表示“失望的”，符合因努力未达预期而产生的负面感受。故选B。 2．The story is so ________ that we’ve never seen anything like it before. A．unusual B．peaceful       C．popular D．important 【答案】A 【详解】句意：这个故事如此不寻常，以至于我们以前从未见过类似的事情。 考查形容词辨析。unusual不寻常的；peaceful平静的；popular受欢迎的；important重要的。根据“we’ve never seen anything like it before.”可知，以前从未见过类似的事情，所以故事不同寻常，故选A。 3．—Have you gone through a terrible storm in your place? —Yes, we have. It was ________ storm we’ve had in years. A．better B．the best C．worse D．the worst 【答案】D 【详解】句意：——你们那里经历了一场可怕的风暴吗？——是的，我们经历了。这是多年来我们遇到的最糟糕的风暴。 考查形容词最高级的用法。better更好的；the best最好的；worse更糟的；the worst最糟的。根据“we’ve had in years.”可知，此处需要表达“最糟糕的”意思，因此使用最高级形式。故选D。 4．—Who will go to the cinema tonight? —Everyone in our class will go there ________ Frank. He is ill at home. A．except B．besides C．between D．without 【答案】A 【详解】句意：——今晚谁会去电影院？——我们班除了弗兰克之外每个人都会去。他生病在家。 考查介词辨析。except除……之外（不包括在内）；besides除……之外（还包括在内）；between在……之间；without没有。根据“—Who will go to the cinema tonight? —Everyone in our class will go there...Frank. He is ill at home.”可知，弗兰克因生病不去电影院，班级其他人都去。“except”表示排除在外，即弗兰克不在去的人之中，符合语境。故选A。 5．Hard work ______ achieving success.​ A．plays a big role in​ B．makes a difference to​ C．looks forward to​ D．pays attention to​ 【答案】A 【详解】句意：努力工作在取得成功中起着很大的作用。 考查动词短语。plays a big role in 表示 “在…… 中起重要作用”，此句意思是努力工作在取得成功中起重要作用；makes a difference to 意为 “对…… 有影响”，强调改变；looks forward to 表示 “期待”，后接动名词；pays attention to 意为 “注意”。根据题意可知，努力工作在取得成功中起着很大的作用。故选 A。 2、 根据首字母及汉语提示完成单词拼写。 1．Pandas especially like eating (竹子) as main food. 【答案】bamboo 【详解】句意：熊猫尤其喜欢把竹子作为主食。考查名词作宾语。根据汉语提示，bamboo意为“竹子”，此处表示泛指，不可数名词，作eating的宾语，符合句意。故填bamboo。 2．At last, Cao Chong found a good way to (称……重量) the elephant. 【答案】weigh 【详解】句意：最后，曹冲找到了一个称大象重量的好方法。称……重量：weigh，动词不定式符号to后加动词原形。故填weigh。 3．The house is small and the living room is (极小的). 【答案】tiny 【详解】句意：房子很小，客厅很小。根据语境可知这是主系表结构，tiny意为“极小的”，形容词，故填tiny。 4．People should take (行动) to make our country more and more beautiful. 【答案】action 【详解】句意：人们应该行动起来，使我们的国家越来越美丽。根据固定搭配take action“采取行动”可知，此处应填“行动”的原形action。故填action。 5．The (气候) is changing, and it affects animals and plants. 【答案】climate 【详解】句意：气候正在改变，这影响动物和植物。表达“气候”用单词climate，当“climate”表示一个地区或国家的长期天气状况和气候特点时，通常被看作是不可数的。故填climate。 三、用括号内所给单词的适当形式填空。 1. We should _____________ these rare animals. (protection) 【答案】protect 【详解】情态动词should后接动词原形，protection的名词动词形式为protect。 2. The _____________ tree in this park is over 500 years old. (old) 【答案】oldest 【详解】"the + 最高级"结构，old的最高级为oldest。 3.I feel _____________ when I see pandas eating bamboo. (relax) 【答案】relaxed 【详解】feel后接形容词，修饰人用relaxed。 4. They will _____________ a poster about rainforests. (creation) 【答案】create 【详解】will后接动词原形，creation的动词形式为create。 5. The _____________ of this animal is its ability to change color. (special) 【答案】specialty 【详解】定冠词the后需名词，special的名词形式为specialty。 6. This is the _____________ _ insect I've ever seen! (tiny) 【答案】tiniest 【详解】"the + 最高级"结构，tiny的最高级为tiniest。 4、 完成句子。 1．你可以随时问我关于植物的问题。 You can ask me questions about plants. 2．这片雨林是许多珍稀动植物的家园。 This rainforest many rare animals and plants. 3．为了照料庄稼， 农民们每天早起。 Farmers get up early every morning take care of their crops. 4．蜜蜂在授粉过程中发挥着重要作用。 Bees   the pollination process. 5．这些新种子没有辜负我们的期望，长成了茁壮的植株。 These new seeds our expectations and grow into strong plants. 【答案】1. feel free to 2. is home to 3. in order to 4. play an important part/role in 5. live up to 五、完形填空。 The cassowary (食火鸡) is one of the world’s largest birds. It can’t fly. It can grow up to 1 2 meters tall. It has strong legs and big feet and can run up to 50 km/h. It is also 2 good swimmer. It can cross wide rivers and swim in the sea. 3 the cassowary is very shy, it can kill people! Nobody 4 to get close to it. However, a new study shows that 5 people had a different idea—they raised (饲养) cassowaries 18, 000 years ago just like we raise chickens today. A group of scientists in Papua New Guinea showed us the study. Papua New Guinea is one of the two 6 of the cassowary. The other is Australia. The cassowary is famous as the world’s 7 dangerous (危险的) birds. So 8 would anyone try to raise the cassowary? Well, cassowary meat is pretty delicious, and people can use 9 feathers (羽毛) to make clothes. If they work 10 enough, people can keep cassowaries on a farm. Maybe people thought the same 18, 000 years ago. 1．A．for B．about C．on D．in 2．A．a B．an C．the D．/ 3．A．As B．If C．Because D．Although 4．A．want B．wants C．wanted D．to want 5．A．no B．any C．every D．some 6．A．homes B．home C．shows D．show 7．A．much B．many C．more D．most 8．A．what B．when C．why D．how 9．A．its B．it C．this D．that 10．A．loudly B．loud C．carefully D．careful 【答案】 1．B 2．A 3．D 4．B 5．D 6．A 7．D 8．C 9．A 10．C 【导语】本文介绍了世界上最大的鸟类之一 ——食火鸡。 1．句意：它能长到高达约两米。 for为了；about大约；on在上面；in在里面。根据“2 meters”可知，这种鸟最高约两米。故选B。 2．句意：它也是一个游泳健将。 a一个，用于辅音音素前；an一个，用于元音音素前；the这个，那个；/ 零冠词。根据“good swimmer”可知，泛指一个游泳健将，且good以辅音音素开头。故选A。 3．句意：尽管食火鸡很害羞，它能杀死人！ as由于，随着；if如果；because因为；although虽然。前后句有转折的含义，用although引导让步状语从句。故选D。 4．句意：没有人想靠近它。 want想要，动词原形；wants动词三单；wanted过去式；to want不定式。主语Nobody是不定代词，全文是一般现在时，谓语动词want用三单形式。故选B。 5．句意：然而，一项新研究表明，一些人有不同的想法。 no没有；any任何，一般用于否定和疑问句；every每个；some一些，一般用于肯定句。前文提到没人敢靠近食火鸡，此处转折后想说明一些人的不同想法，句子为肯定句。故选D。 6．句意：巴布亚新几内亚是食火鸡两个栖息地中的一个。 homes家园，栖息地，复数；home单数；shows演出，复数；show单数。基数词two后接可数名词复数，指食火鸡的家园，用homes。故选A。 7．句意：食火鸡作为世界上最危险的鸟类而著名。 much许多，修饰不可数名词或比较级；many许多，修饰可数名词复数；more更多，比较级；most最多，最高级。根据“the world’s”可知，比较范围是全世界，表示最危险的鸟类，用most dangerous。故选D。 8．句意：那么为什么有人试着去养食火鸡呢？ what什么；when什么时候；why为什么；how怎么样。根据“Well, cassowary meat is pretty delicious”可知， 此处说明有人养食火鸡的原因。故选C。 9．句意：食火鸡的肉很美味，而且人们能用它的羽毛做衣服。 its它的；it它；this这个；that那个。空处作定语，指食火鸡的羽毛，用its。故选A。 10．句意：如果人们工作足够小心，就能在农场养食火鸡。 loudly大声地；loud大声的；carefully小心地；careful小心的。修饰动词work用副词，前文提到食火鸡很危险，所以人们应该小心地饲养它。故选C。 六、语法填空。 阅读下面短文，在空白处填入一个适当的词，或填入括号中所给单词的正确形式。 Elephants are among the biggest mammals in the world. There are two kinds of elephants, the 1 (Africa) elephants and the Asian elephants. The main 2 (different) between them is that the Asian one has much 3 (small) ears. The African elephant uses its bigger ears 4 (cool) during the summer. The elephants use their feet to feel the vibrations (震动) 5 the ground. Most adult elephants have two tusks (长牙). They can be as long as 2 metres. An adult elephant reaches 3 to 4 metres—many times taller than a baby one. And an adult elephant 6 (weigh) about 5, 000 kg. Adult elephants spend 15 to 18 hours a day 7 (eat) 250 to 300 kilos of food. Elephants can live up to about 5 years. 8 (they) eyesight (视力) is very poor. 9 don’t be upset with them. The elephant has 10 biggest brain among the mammals on land! 【答案】 1．African 2．difference 3．smaller 4．to cool 5．on 6．weighs 7．eating 8．Their 9．But 10．the 【导语】本文介绍了大象的种类、外貌特征、生活习性以及它们在陆地哺乳动物中的一些独特之处。 1．句意：有两种大象，非洲象和亚洲象。根据“elephants”可知，此处需要形容词修饰名词，Africa的形容词形式是African，表示“非洲的”。故填African。 2．句意：它们之间的主要区别是亚洲象的耳朵小得多。根据“The main”可知，此处需要名词作主语，different的名词形式是difference，表示“区别，不同”。故填difference。 3．句意：它们之间的主要区别是亚洲象的耳朵小得多。根据“much”可知，此处需要形容词的比较级形式，表示程度上的更大或更小，small的比较级是smaller，表示“更小的”。故填smaller。 4．句意：非洲象在夏天用它的大耳朵来降温。根据“uses its bigger ears”可知，此处需要动词不定式作目的状语，表示使用大耳朵的目的，cool的动词不定式形式是to cool，表示“来降温”。故填to cool。 5．句意：大象用它们的脚来感受地面上的震动。根据“the ground”可知，此处表示震动在地面上的位置，on the ground“在地面上”。故填on。 6．句意：一头成年大象重约5000公斤。根据“an adult elephant”可知，此处表示一般事实，时态用一般现在时，主语是第三人称单数，谓语动词用三单形式，weigh的三单形式是weighs，表示“重”。故填weighs。 7．句意：成年大象每天花15到18个小时吃250到300公斤的食物。根据“spend 15 to 18 hours a day”可知，此处考查固定搭配spend time doing sth.，表示“花费时间做某事”，因此用eat的动名词形式eating，表示“吃”。故填eating。 8．句意：它们的视力很差。根据“eyesight”可知，此处需要形容词性物主代词修饰名词，they的形容词性物主代词是Their，表示“它们的”。故填Their。 9．句意：但是不要对它们感到沮丧。根据“don’t be upset with them”可知，此处与前文构成转折关系，需要连词but表示“但是”，且位于句首，首字母大写。故填But。 10．句意：大象是陆地上哺乳动物中大脑最大的！根据“biggest brain”可知，此处表示最高级，需要定冠词the修饰最高级形式。故填the。 7、 阅读理解。 ①The fastest growing plant in the world is bamboo. Some bamboo grows so quickly that people say they can watch it grow. The speed of growth depends on the type of bamboo, the soil and the season. Normal bamboo grows about 30cm a day. It usually grows in tropical areas (热带地区). It can also be found in other parts of the world. Bamboo plants are found in Asia, parts of Africa and South America. ②Bamboo is a wonderful plant for many people around the world. There are over 1, 000 uses for it. People make tables, clothes, and it is also edible (可食用的). ③________ People use it because it’s very strong. They use it to build houses, boats and bridges. The Chinese made a bamboo bridge over the Min River in Sichuan, China almost 1,000 years ago. Bamboo is used to build houses especially in China and the Philippines. ④Bamboo is the earliest material used to make the light bulb. The great scientist Thomas Edison did not invent the light bulb, but he made it perfect. He wanted the material inside to burn for a long period of time. He tried over 1,000 different types of materials. None worked very well. One day, he tried to use a piece of bamboo and the light bulb lit up for over a thousand hours. This invention helped other scientists to make the modern light bulb we use today. 1．What can we know from the passage? A．Bamboo can’t be eaten. B．Bamboo was used in building 1,000 years ago. C．Bamboo is stronger than other materials. D．Bamboo was the earliest material. 2．Which sentence can be put in the “________”? A．The lovely pandas often feed on bamboo. B．People planted bamboo hundreds of years ago. C．One of the world’s oldest building materials is bamboo. D．Bamboo that grows in tropical forests is usually tall and large. 3．What is the purpose of writing the passage? A．To let readers know the importance of bamboo. B．To learn how to build a house with bamboo. C．To learn how to protect bamboo. D．To know how to plant bamboo. 4．Which of the following is TRUE according to the passage? A．All types of bamboo grow 30cm a day. B．Bamboo can only be found in tropical areas. C．The Chinese built a bamboo bridge over the Min River about 1,000 years ago. D．Thomas Edison invented the light bulb with the bamboo material. 5．Which of the following shows the structure of this passage? A． B． C． D． 【答案】【导语】本文主要介绍了竹子这一植物，包括其生长情况、用途等。 1．细节理解题。根据“The Chinese made a bamboo bridge over the Min River in Sichuan, China almost 1,000 years ago.”可知, 一千年前，竹子就被用于建筑。故选B。 2．推理判断题。根据“They use it to build houses, boats and bridges. The Chinese made a bamboo bridge over the Min River in Sichuan, China almost 1,000 years ago.”可知，本段主要讲的是竹子被用于建筑行业，是一种建筑材料，且中国人在1000年前就使用竹子造桥。选项C“竹子是世界上最古老的建筑材料之一。”符合语境。故选C。 3．主旨大意题。通读全文可知，文章介绍了竹子的多种用途，因此其目的是让人们了解竹子的重要性。故选A。 4．细节理解题。根据“The Chinese made a bamboo bridge over the Min River in Sichuan, China almost 1,000 years ago.”可知，中国人在大约1000年前就在四川的岷江上建了一座竹桥。故选C。 5．篇章结构题。第一段介绍竹子的生长情况；第二段介绍竹子的多种用途；第三段和第四段分别介绍了竹子不同的具体用途。故选A。 八、任务型阅读。 请阅读下面这篇材料，根据所提供的信息，回答下列问题。 People already know a lot about animals. However, there are still some things about animals that may surprise you. Here are some facts about animals you probably didn’t know. ♦ Cows do have best friends and feel stressed (紧张) when they are separated. Scientists have found that cows are very social (好交际的) animals and a cow always makes friends with other cows. When a cow is with its friends, it feels relaxed, compared with when it is alone. ♦ During the breeding (喂养) season, a male penguin (企鹅) will offer a small stone to a female penguin as a gift. If she takes it, they will become partners. When the female penguin lays an egg, she and her partner may carry it on their feet, because some penguins don’t build nests (鸟巢). ♦ Crocodiles (鳄鱼) swallow (吞) stones. Crocodiles always swallow their food instead of eating it like other animals. They swallow stones to break the food into very small pieces in their stomachs. These stones may stay in their stomachs all their lives. ♦Elephants use plants to treat pain or other illnesses. Scientists once found a pregnant (怀孕的) elephant in Africa who ate a kind of plant which was not part of her normal food. Four days later, she gave birth to a baby elephant. The same plant was used by the local pregnant women. 1．What do cows feel when they are with friends? 2．Why does a female penguin and her partner may carry the egg on their feet? 3．How do crocodiles break the food into very small pieces in their stomachs? 4．Which animal use plants to treat pain or other illnesses? 5．How many facts about animals can we know in the passage? 【答案】1．Cows/They feel relaxed when they are with friends./Relaxed. 2．Because some penguins don’t build nests. 3．They swallow stones to break the food into very small pieces in their stomachs./By swallowing stones. 4．Elephants use/The elephant uses plants to treat pain or other illnesses./Elephants/The elephant. 5．We can know four facts about animals in the passage./Four. 学科网（北京）股份有限公司 $ Unit 4 Amazing Plants and Animals Section B Project课时作业 1、 单项选择。 1．—I studied so hard, but I didn’t pass the exam. —Oh no! That’s too bad. You must be really ________. A．surprised B．disappointed C．interested D．excited 2．The story is so ________ that we’ve never seen anything like it before. A．unusual B．peaceful       C．popular D．important 3．—Have you gone through a terrible storm in your place? —Yes, we have. It was ________ storm we’ve had in years. A．better B．the best C．worse D．the worst 4．—Who will go to the cinema tonight? —Everyone in our class will go there ________ Frank. He is ill at home. A．except B．besides C．between D．without 5．Hard work ______ achieving success.​ A．plays a big role in​ B．makes a difference to​ C．looks forward to​ D．pays attention to​ 2、 根据首字母及汉语提示完成单词拼写。 1．Pandas especially like eating (竹子) as main food. 2．At last, Cao Chong found a good way to (称……重量) the elephant. 3．The house is small and the living room is (极小的). 4．People should take (行动) to make our country more and more beautiful. 5．The (气候) is changing, and it affects animals and plants. 三、用括号内所给单词的适当形式填空。 4、 1. We should _____________ these rare animals. (protection) 2. The _____________ tree in this park is over 500 years old. (old) 3.I feel _____________ when I see pandas eating bamboo. (relax) 4. They will _____________ a poster about rainforests. (creation) 5. The _____________ of this animal is its ability to change color. (special) 6. This is the _____________ _ insect I've ever seen! (tiny) 完成句子。 1．你可以随时问我关于植物的问题。 You can ask me questions about plants. 2．这片雨林是许多珍稀动植物的家园。 This rainforest many rare animals and plants. 3．为了照料庄稼， 农民们每天早起。 Farmers get up early every morning take care of their crops. 4．蜜蜂在授粉过程中发挥着重要作用。 Bees   the pollination process. 5．这些新种子没有辜负我们的期望，长成了茁壮的植株。 These new seeds our expectations and grow into strong plants. 五、完形填空。 The cassowary (食火鸡) is one of the world’s largest birds. It can’t fly. It can grow up to 1 2 meters tall. It has strong legs and big feet and can run up to 50 km/h. It is also 2 good swimmer. It can cross wide rivers and swim in the sea. 3 the cassowary is very shy, it can kill people! Nobody 4 to get close to it. However, a new study shows that 5 people had a different idea—they raised (饲养) cassowaries 18, 000 years ago just like we raise chickens today. A group of scientists in Papua New Guinea showed us the study. Papua New Guinea is one of the two 6 of the cassowary. The other is Australia. The cassowary is famous as the world’s 7 dangerous (危险的) birds. So 8 would anyone try to raise the cassowary? Well, cassowary meat is pretty delicious, and people can use 9 feathers (羽毛) to make clothes. If they work 10 enough, people can keep cassowaries on a farm. Maybe people thought the same 18, 000 years ago. 1．A．for B．about C．on D．in 2．A．a B．an C．the D．/ 3．A．As B．If C．Because D．Although 4．A．want B．wants C．wanted D．to want 5．A．no B．any C．every D．some 6．A．homes B．home C．shows D．show 7．A．much B．many C．more D．most 8．A．what B．when C．why D．how 9．A．its B．it C．this D．that 10．A．loudly B．loud C．carefully D．careful 六、语法填空。 阅读下面短文，在空白处填入一个适当的词，或填入括号中所给单词的正确形式。 Elephants are among the biggest mammals in the world. There are two kinds of elephants, the 1 (Africa) elephants and the Asian elephants. The main 2 (different) between them is that the Asian one has much 3 (small) ears. The African elephant uses its bigger ears 4 (cool) during the summer. The elephants use their feet to feel the vibrations (震动) 5 the ground. Most adult elephants have two tusks (长牙). They can be as long as 2 metres. An adult elephant reaches 3 to 4 metres—many times taller than a baby one. And an adult elephant 6 (weigh) about 5, 000 kg. Adult elephants spend 15 to 18 hours a day 7 (eat) 250 to 300 kilos of food. Elephants can live up to about 5 years. 8 (they) eyesight (视力) is very poor. 9 don’t be upset with them. The elephant has 10 biggest brain among the mammals on land! 7、 阅读理解。 ①The fastest growing plant in the world is bamboo. Some bamboo grows so quickly that people say they can watch it grow. The speed of growth depends on the type of bamboo, the soil and the season. Normal bamboo grows about 30cm a day. It usually grows in tropical areas (热带地区). It can also be found in other parts of the world. Bamboo plants are found in Asia, parts of Africa and South America. ②Bamboo is a wonderful plant for many people around the world. There are over 1, 000 uses for it. People make tables, clothes, and it is also edible (可食用的). ③________ People use it because it’s very strong. They use it to build houses, boats and bridges. The Chinese made a bamboo bridge over the Min River in Sichuan, China almost 1,000 years ago. Bamboo is used to build houses especially in China and the Philippines. ④Bamboo is the earliest material used to make the light bulb. The great scientist Thomas Edison did not invent the light bulb, but he made it perfect. He wanted the material inside to burn for a long period of time. He tried over 1,000 different types of materials. None worked very well. One day, he tried to use a piece of bamboo and the light bulb lit up for over a thousand hours. This invention helped other scientists to make the modern light bulb we use today. 1．What can we know from the passage? A．Bamboo can’t be eaten. B．Bamboo was used in building 1,000 years ago. C．Bamboo is stronger than other materials. D．Bamboo was the earliest material. 2．Which sentence can be put in the “________”? A．The lovely pandas often feed on bamboo. B．People planted bamboo hundreds of years ago. C．One of the world’s oldest building materials is bamboo. D．Bamboo that grows in tropical forests is usually tall and large. 3．What is the purpose of writing the passage? A．To let readers know the importance of bamboo. B．To learn how to build a house with bamboo. C．To learn how to protect bamboo. D．To know how to plant bamboo. 4．Which of the following is TRUE according to the passage? A．All types of bamboo grow 30cm a day. B．Bamboo can only be found in tropical areas. C．The Chinese built a bamboo bridge over the Min River about 1,000 years ago. D．Thomas Edison invented the light bulb with the bamboo material. 5．Which of the following shows the structure of this passage? A． B． C． D． 八、任务型阅读。 请阅读下面这篇材料，根据所提供的信息，回答下列问题。 People already know a lot about animals. However, there are still some things about animals that may surprise you. Here are some facts about animals you probably didn’t know. ♦ Cows do have best friends and feel stressed (紧张) when they are separated. Scientists have found that cows are very social (好交际的) animals and a cow always makes friends with other cows. When a cow is with its friends, it feels relaxed, compared with when it is alone. ♦ During the breeding (喂养) season, a male penguin (企鹅) will offer a small stone to a female penguin as a gift. If she takes it, they will become partners. When the female penguin lays an egg, she and her partner may carry it on their feet, because some penguins don’t build nests (鸟巢). ♦ Crocodiles (鳄鱼) swallow (吞) stones. Crocodiles always swallow their food instead of eating it like other animals. They swallow stones to break the food into very small pieces in their stomachs. These stones may stay in their stomachs all their lives. ♦Elephants use plants to treat pain or other illnesses. Scientists once found a pregnant (怀孕的) elephant in Africa who ate a kind of plant which was not part of her normal food. Four days later, she gave birth to a baby elephant. The same plant was used by the local pregnant women. 1．What do cows feel when they are with friends? 2．Why does a female penguin and her partner may carry the egg on their feet? 3．How do crocodiles break the food into very small pieces in their stomachs? 4．Which animal use plants to treat pain or other illnesses? 5．How many facts about animals can we know in the passage? 学科网（北京）股份有限公司 $