专题01 Units 1～2（词汇综合练）英语新教材鲁教版五四学制七年级下册

专题01 Units 1-2（词汇综合练） （建议用时：40分钟） 一、根据汉语意思或首字母写出单词。 二、用所给单词的适当形式填空。 三、根据汉语提示完成句子。 四、单项选择题。 五、完形填空。 六、选词填空 七、阅读填空 一、根据汉语意思或首字母写出单词 1. （2025·江苏宿迁·中考真题）There are many (不同的) places of interest in our country. 【答案】different 【详解】句意：我们国家有许多不同的名胜古迹。different“不同的”，形容词，作定语。故填different。 2. We can____________ (比较) the two skirts and choose the cheaper one. 【答案】compare 【详解】句意：我们可以比较这两条裙子，然后选更便宜的那条。compare“比较”，动词，情态动词can后接动词原形。故填compare。 3. My little sister is very s______ and she doesn’t like talking to strangers. 【答案】shy 【详解】句意：我的小妹妹很害羞，她不喜欢和陌生人说话。shy“害羞的”，形容词，作表语。故填shy。 4. Everyone likes to make friends with Lily because she is an h______ girl. 【答案】honest 【详解】句意：每个人都喜欢和莉莉交朋友，因为她是一个诚实的女孩。honest“诚实的”，形容词，作定语。故填honest。 5. Lisa is more __________(努力工作的) than most students in our class. 【答案】hard-working 【详解】句意：莉萨比我们班大多数学生都更勤奋。hard-working“努力工作的”，形容词，用于比较级结构中。故填hard-working。 6. We should keep calm when we are in a difficult _________(状况). 【答案】situation 【详解】句意：当我们处于困境时，应该保持冷静。situation“状况”，可数名词，由a可知用单数形式。故填situation。 7. This song is very ____________(流行的) among the students in our class. 【答案】popular 【详解】句意：这首歌在我们班学生中很受欢迎。popular“流行的”，形容词，作表语。故填popular。 8. I ____________(相信) that I can pass the English test next week. 【答案】believe 【详解】句意：我相信我下周能通过英语考试。believe“相信”，动词，句子为一般现在时，主语为I，用动词原形。故填believe。 9. My uncle is a d______ man and he always says what he thinks. 【答案】direct 【详解】句意：我的叔叔是一个直率的人，他总是直言不讳。direct“率直的”，形容词，作定语。故填direct。 10.Yesterday, it took us half an hour to s_________ the math problem. 【答案】solve 【详解】句意为：昨天，我们花了半个小时解这道数学题。solve意为“解决；解答”，动词，用于“it takes sb. some time to do sth.”结构中，用动词原形。故填solve。 二、用所给单词的适当形式填空 1. （2025·山东泰安·中考真题改编）The government has started a three-year action plan to help people control their ______ (weigh) to fight against obesity (肥胖). 【答案】weight 【详解】句意为：政府已启动一项为期三年的行动计划，旨在帮助民众控制体重，以对抗肥胖问题。形容词性物主代词their后接名词，weigh的名词形式是weight，意为“重量”，故填weight。 2. The ______ (similar) between the two pictures is that they both have a cat. 【答案】similarity 【详解】句意为：这两幅画的相似之处在于它们都有一只猫。定冠词The后接名词，similar的名词形式是similarity，意为“相似之处”，由is可知用单数形式，故填similarity。 3. We expect ______ (see) a new movie this weekend. 【答案】to see 【详解】句意为：这个周末我们期待去看一部新电影。固定搭配expect to do sth. 意为“期待做某事”，故填to see。 4. Can you tell me the ______ (different) between these two words? 【答案】difference 【详解】句意为：你能告诉我这两个单词之间的区别吗？定冠词The后接名词，different的名词形式是difference，意为“区别”，此处用单数形式即可，故填difference。 5. We shouldn’t judge a person only by his ______ (appear). 【答案】appearance 【详解】句意为：我们不应该只通过外表来评判一个人。形容词性物主代词his后接名词，appear的名词形式是appearance，意为“外表”，故填appearance。 6. It’s my ______ (please) to help you with your English homework. 【答案】pleasure 【详解】句意为：帮你辅导英语作业是我的荣幸。形容词性物主代词my后接名词，please的名词形式是pleasure，意为“荣幸”，故填pleasure。 7. You should eat ______ (little) junk food to keep healthier. 【答案】less 【详解】句意为：为了更健康，你应该少吃垃圾食品。根据“to keep healthier”可知用比较级，little的比较级是less，意为“更少的”，故填less。 8. Vegetables and fruits are full of ______ (good) for our health. 【答案】goodness 【详解】句意为：蔬菜和水果富含对我们健康有益的营养。固定搭配be full of后接名词，good的名词形式是goodness，意为“营养”，故填goodness。 9. Please feel free ______ (ask) me questions about English. 【答案】to ask 【详解】句意为：请随时问我关于英语的问题。固定搭配feel free to do sth. 意为“随便做某事”，故填to ask。 10. ______ (actual), I don’t like eating spicy food at all. 【答案】Actually 【详解】句意为：实际上，我一点也不喜欢吃辛辣的食物。此处用副词修饰整个句子，actual的副词形式是actually，意为“实际上”，句首单词首字母大写，故填Actually。 三、根据汉语提示完成句子, 每空一词。 1. 为了取得好成绩，我们应该努力学习。 ______ _______ ______ achieve good grades, we should study hard. 2. 这个小包能装下多达五本书。 This small bag can hold _______ ______ five books. 3. 我用一把漂亮的折扇在天热的时候纳凉。 I use a beautiful _______ ________ to cool down on hot days. 4. 请帮我搭把手搬这个重箱子。 Please _________ me ______ ________ to carry this heavy box. 5. 他伸手去拿包，然后掏出了一支钢笔。 He __________ _______ his bag and took out a pen. 6. 我们应该关心父母，帮他们做家务。 We should ________ ________our parents and help them do housework. 7. 由于你的帮助，我按时完成了这个项目。 ________ ________ your help, I finished the project on time. 8. 每个人在日常生活中都可能犯错误。 Everyone may _______ ______ ________ in daily life. 9. 我在机场偶然遇见了他。 I met him at the airport _______ _________. 10. 汤姆和我有很多共同之处，所以我们是好朋友。 Tom and I have a lot _______ _________, so we are good friends. 【答案】1. In order to 2. up to 3. folding fan 4. lend; a hand 5. reached for 6. care about 7. Thanks to 8. make a mistake 9. by accident 10. in common 四、单项选择 1. （2023·四川乐山）—Have you heard about the car ______ near the school? —Yes. Luckily, no one was seriously hurt. A. accident　B. park　C. club 【答案】A 【详解】句意为：你听说学校附近的那场车祸了吗？——听说了。幸运的是，没有人受重伤。accident意为“事故”，car accident是固定搭配，意为“车祸”；park意为“公园”；club意为“俱乐部”。结合语境，故选A。 2. Pandas in the zoo like to eat the fresh leaves of ______ very much. A. bamboo B. tree C. grass D. flower 【答案】A 【详解】句意为：动物园里的熊猫非常喜欢吃新鲜的竹叶。bamboo意为“竹子”，是熊猫的主要食物；tree意为“树”；grass意为“草”；flower意为“花”。结合常识，故选A。 3. My father uses a small ______ to fix（修理） my broken toy car. A. toy B. tool C. book D. pen 【答案】B 【详解】句意为：我爸爸用一个小工具修理我坏掉的玩具车。tool意为“工具”，符合修理物品的语境；toy意为“玩具”；book意为“书”；pen意为“钢笔”。故选B。 4. Stars will ______ in the dark sky when the sun goes down. A. hide B. appear C. leave D. sleep 【答案】B 【详解】句意为：太阳落山后，星星会出现在漆黑的天空中。appear意为“出现”；hide意为“隐藏”；leave意为“离开”；sleep意为“睡觉”。结合语境，故选B。 5. All the students must ______ the sports meeting next Friday; no one can be absent. A. attend B. expect C. touch D. reach 【答案】A 【详解】句意为：所有学生都必须参加下周五的运动会，任何人不得缺席。attend意为“参加；出席”，后常接会议、活动等；expect意为“期待”；touch意为“触摸”；reach意为“到达”。结合语境，故选A。 6. Lily and Lucy are twin sisters. They look very ______ and we can hardly tell them apart. A. slim B. alike C. serious D. pleasant 【答案】B 【详解】句意为：莉莉和露西是双胞胎姐妹。她们长得非常像，我们几乎分不清她们。alike意为“相像的”，符合双胞胎的特点；slim意为“苗条的”；serious意为“严肃的”；pleasant意为“宜人的”。故选B。 7. —Look at yourself in the ________. You look so beautiful. —Thank you. A. window B. mirror C. door D. wall 【答案】B 【详解】句意为：——看看镜子里的你自己。你看起来真漂亮。——谢谢你。mirror意为“镜子”，look in the mirror是固定搭配，意为“照镜子”；window意为“窗户”；door意为“门”；wall意为“墙”。故选B。 8. The river is about 10 meters _________. A.long B. wide C. high D.heavy 【答案】B 【详解】句意为：这条河大约有10米宽。wide意为“宽的”，描述河流的宽度；long意为“长的”；high意为“高的”；heavy意为“重的”。结合语境，故选B。 9. My brother is ______ tall ______ my father now. A. so, as B. the same, as C. as, as D. from, to 【答案】C 【详解】句意为：我弟弟现在和我爸爸一样高。as...as...是固定结构，意为“和……一样……”，中间接形容词原级；so...as...多用于否定句；the same as...后接名词或代词，不接形容词；from...to...意为“从……到……”。故选C。 10. ________ English, we also learn math and Chinese every day. A. Besides B. Except C. Beside D. But 【答案】A 【详解】句意为：除了英语之外，我们每天还学习数学和语文。besides意为“除……之外（还）”，包含后面的事物；except意为“除……之外”，不包含后面的事物；beside意为“在……旁边”；but意为“但是”。结合语境，故选A。 五、完形填空题 I have a good friend. Her name is Lucy. She is in Class 3, Grade 8. We are in the same class, so we are always together. But we are very 1 . Lucy is quieter and more serious than me. I am more outgoing and I like to 2 jokes. She studies harder and gets better 3 . I like sports and I play ping-pong better than she does. We both like 4 . She likes to go to the parties that have great music. I like to go to the parties where I can talk with 5 . She enjoys reading, drawing and listening to music. I like watching movies and 6 games. 7 we have differences, we get on well with each other. When I feel sad, she always 8 me laugh. When she has problems, I help her 9 them. I think friends don’t have to be the same. 10 is not important. What’s important is that we care about each other. 1．A．different B．same C．like D．kind 2．A．say B．speak C．tell D．talk 3．A．books B．grades C．clothes D．food 4．A．studying B．playing C．reading D．parties 5．A．other B．the other C．others D．another 6．A．play B．plays C．playing D．to play 7．A．Because B．Although C．So D．But 8．A．makes B．lets C．helps D．wants 9．A．solve B．to solving C．solves D．solved 10．A．Difference B．Same C．Being the same D．Being different 【答案】 1．A 2．C 3．B 4．D 5．C 6．C 7．B 8．A 9．A 10．C 【导语】本文主要讲述了“我”和好朋友露西性格、爱好等方面不同，但相处融洽，彼此关心，表明朋友不一定要相同。 1．句意：但是我们非常不同。 different不同的；same相同的；like喜欢；kind和蔼的。根据“Lucy is quieter and more serious than me. I am more outgoing...”可知，两人性格等方面不同，故选A。 2．句意：我更外向，喜欢讲笑话。 say说，强调说的内容；speak说，常接某种语言；tell告诉；talk交谈。根据“jokes”可知，此处表示讲笑话，tell jokes“讲笑话”，是固定搭配，故选C。 3．句意：她学习更努力，成绩更好。 books书；grades成绩；clothes衣服；food食物。根据“She studies harder”可知，学习更努力成绩会更好，故选B。 4．句意：我们都喜欢聚会。 studying学习；playing玩；reading阅读；parties聚会。根据“She likes to go to the parties that have great music. I like to go to the parties where I can talk with...”可知，两人都喜欢聚会，故选D。 5．句意：我喜欢去我能和其他人交谈的聚会。 other其他的；the other两者中的另一个；others其他人或物，相当于other + 名词复数；another三者或三者以上的另一个。根据“I like to go to the parties where I can talk with...”可知，此处指和其他人交谈，用others，故选C。 6．句意：我喜欢看电影和玩游戏。 play玩，原形；plays玩，第三人称单数形式；playing玩，动名词形式；to play玩，动词不定式形式。根据“I like watching movies and…games.”可知，喜欢玩游戏，like doing sth.“喜欢做某事”，是固定搭配，故选C。 7．句意：尽管我们有不同，但我们相处得很好。 Because因为；Although尽管；So所以；But但是。根据“we have differences, we get on well with each other”可知，前后是让步关系，用although引导让步状语从句，表示“尽管”，故选B。 8．句意：当我难过时，她总是让我笑。 makes使，让；lets让；helps帮助；wants想要。根据“me laugh”可知，使我笑，make sb. do sth.“让某人做某事”，是固定搭配，故选A。 9．句意：当她有问题时，我帮助她解决问题。 solve解决，原形；to solving解决；solves解决，第三人称单数形式；solved解决，过去式。根据“help her…them”可知，是帮助解决问题，help sb. (to) do sth.“帮助某人做某事”，固定用法，故选A。 10．句意：相同并不重要。 Difference不同；Same相同；Being the same相同；Being different不同。根据“I think friends don’t have to be the same.”可知，此处强调相同不重要，动名词作主语，故选C。 六、选词填空，每空限填一词，每词限用一次。 there, few, important, eat, of, symbol, only, about, save, cut Pandas are so cute and lovely. They have become so popular that they are now a 1 of China. Scientists say there are now 2 than 2,000 pandas living in the forests. Pandas do not have many babies, maybe 3 one every two years. The babies often die from all kinds 4 illnesses and do not live very long. Adult (成年) pandas spend more than 12 hours a day 5 about 10 kilos of bamboo. Many years ago, there were a lot more bamboo forests and pandas in China, but then humans started to 6 down these forests. Pandas can’t find enough to eat and they are having fewer babies. An education program in Chengdu teaches children 7 pandas and other wild animals in danger. It also tells the children about the 8 of saving these animals. And the Chinese government is trying hard to help 9 the pandas. We all hope that in the future 10 will be a lot more pandas. 【答案】 1. symbol 2. fewer 3. only 4. of 5. eating 6. cut 7. about 8. importance 9. save 10. there 【解析】 【导语】本文介绍熊猫是中国的象征，因竹林减少数量变少，人们通过教育和政府行动保护熊猫，期盼其数量增多。 1. 【详解】句意为：它们十分受欢迎，如今成了中国的象征。a symbol of 是固定搭配，意为“……的象征”。 2. 【详解】句意为：科学家称目前只有不到2000只熊猫生活在森林里。fewer than 是固定短语，意为“少于；不到”。 3. 【详解】句意为：熊猫繁殖能力不强，或许每两年只生一只幼崽。only 表示“仅仅；只”，符合语境。 4. 【详解】句意为：幼崽常因各种疾病夭折，寿命不长。all kinds of 是固定搭配，意为“各种各样的”。 5. 【详解】句意为：成年熊猫每天要花12个多小时吃大约10公斤竹子。spend time doing sth. 是固定用法。 6. 【详解】句意为：但后来人类开始砍伐这些森林。cut down 是固定短语，意为“砍伐”。 7. 【详解】句意为：成都的一个教育项目教孩子们了解熊猫及其他濒危野生动物。teach sb. about sth. 意为“教某人关于某事”。 8. 【详解】句意为：它还告诉孩子们拯救这些动物的重要性。the后接名词，important的名词形式是importance。 9. 【详解】句意为：中国政府正努力帮助拯救熊猫。help (to) do sth. 意为“帮助做某事”。 10. 【详解】句意为：我们都希望未来会有更多的熊猫。there be 句型表示“某地有某物”。 七、阅读填空 The ginkgo tree is one of the 1 (old) living plants on Earth. It 2 (appear) over 200 million years ago. In China, the ginkgo is a symbol of hope and long life. The 3 (large) ginkgo tree in Shanxi Province is over 1,400 years old. Its leaves turn bright yellow in autumn, 4 (attract) many tourists. Bees play 5 important role in pollination. Without them, 80% of plants cannot grow. 6 (sad), their number is dropping because of pollution and habitat loss. We can help by 7 (plant) more flowers and avoiding pesticides. The blue whale, 8 (weigh) up to 200 tons, is the 9 (heavy) animal on Earth. It lives in most oceans and helps maintain a 10 (health) ecosystem by providing food for other marine life. 【答案】 1．oldest 2．appeared 3．largest 4．attracting 5．an 6．Sadly 7．planting 8．weighing 9．heaviest 10．healthy 【导语】本文是一篇说明文，主要介绍了银杏树、蜜蜂及蓝鲸的相关信息。 1．句意：银杏树是地球上最古老的现存植物之一。“one of the + 形容词最高级”表示“最……之一”，old的最高级是oldest。故填oldest。 2．句意：它出现在2亿多年前。“200 million years ago”提示用一般过去时，appear的过去式是appeared。故填appeared。 3．句意：山西省最大的银杏树已有1400多年树龄。此处表示“最大的”，用large的最高级largest。故填largest。 4．句意：它的叶子在秋天变成亮黄色，吸引了许多游客。此处是现在分词作结果状语，attract的现在分词是attracting。故填attracting。 5．句意：蜜蜂在传粉中扮演着重要角色。固定短语“play an important role”表示“扮演重要角色”，important以元音音素开头，故填an。 6．句意：遗憾的是，由于污染和栖息地丧失，它们的数量正在下降。此处修饰整个句子，用sad的副词形式sadly，句首首字母大写。故填Sadly。 7．句意：我们可以通过种植更多的花和避免使用杀虫剂来提供帮助。by是介词，后接动名词，plant的动名词是planting。故填planting。 8．句意：蓝鲸重达200吨，是地球上最重的动物。此处是现在分词作后置定语，weigh的现在分词是weighing。故填weighing。 9．句意：蓝鲸重达200吨，是地球上最重的动物。“on Earth”提示用最高级，heavy的最高级是heaviest。故填heaviest。 10．句意：它生活在大多数海洋中，通过为其他海洋生物提供食物来帮助维持健康的生态系统。此处用形容词修饰名词ecosystem，health的形容词是healthy。故填healthy。 1 / 5 学科网（北京）股份有限公司 $ 专题01 Units 1-2（词汇综合练） （建议用时：40分钟） 一、根据汉语意思或首字母写出单词。 二、用所给单词的适当形式填空。 三、根据汉语提示完成句子。 四、单项选择题。 五、完形填空。 六、选词填空 七、阅读填空 一、根据汉语意思或首字母写出单词。 1.（2025·江苏宿迁·中考真题）There are many (不同的) places of interest in our country. 2.We can _________ (比较）the two skirts and choose the cheaper one. 3.My little sister is very s________ and she doesn’t like talking to strangers. 4.．Everyone likes to make friends with Lily because she is an h girl. 5．Lisa is more (努力工作的) than most students in our class. 6.We should keep calm when we are in a difficult __________(状况）. 7.This song is very __________(流行的） among the students in our class. 8. I ________ (相信） that I can pass the English test next week. 9.My uncle is a d_________ man and he always says what he thinks. 10.Yesterday, it took us half an hour to s_________ the math problem. 二、用所给单词的适当形式填空。 1.（2025·山东泰安·中考真题改编）The government has started a three-year action plan to help people control their （weigh）to fight against obesity (肥胖). 2.The __________(similar) between the two pictures is that they both have a cat. 3.We expect ________(see )a new movie this weekend. 4.Can you tell me the __________(different) between these two words? 5.We shouldn’t judge a person only by his __________(appear). 6.It’s my___________(please) to help you with your English homework. 7.You should eat _________ (little) junk food to keep healthier. 8.Vegetables and fruits are full of ___________(good) for our health. 9.Please feel free _________( ask )me questions about English. 10.____________(actual), I don’t like eating spicy food at all. 三、根据汉语提示完成句子, 每空一词。 1. 为了取得好成绩，我们应该努力学习。 ______ _______ ______ achieve good grades, we should study hard. 2. 这个小包能装下多达五本书。 This small bag can hold _______ ______ five books. 3. 我用一把漂亮的折扇在天热的时候纳凉。 I use a beautiful _______ ________ to cool down on hot days. 4. 请帮我搭把手搬这个重箱子。 Please _________ me ______ ________ to carry this heavy box. 5. 他伸手去拿包，然后掏出了一支钢笔。 He __________ _______ his bag and took out a pen. 6. 我们应该关心父母，帮他们做家务。 We should ________ ________our parents and help them do housework. 7. 由于你的帮助，我按时完成了这个项目。 ________ ________ your help, I finished the project on time. 8. 每个人在日常生活中都可能犯错误。 Everyone may _______ ______ ________ in daily life. 9. 我在机场偶然遇见了他。 I met him at the airport _______ _________. 10. 汤姆和我有很多共同之处，所以我们是好朋友。 Tom and I have a lot _______ _________, so we are good friends. 四、单项选择 1.（2023·四川乐山）—Have you heard about the car ______ near the school? —Yes. Luckily, no one was seriously hurt. A. accident　B. park　C. club 2.Pandas in the zoo like to eat the fresh leaves of ______ very much. A. bamboo B. tree C. grass D. flower 3.My father uses a small ______ to fix（修理） my broken toy car. A. toy B. tool C. book D. pen 4.Stars will ______ in the dark sky when the sun goes down. A. hide B. appear C. leave D. sleep 5. All the students must ______ the sports meeting next Friday; no one can be absent. A. attend B. expect C. touch D. reach 6. Lily and Lucy are twin sisters. They look very ______ and we can hardly tell them apart. A. slim B. alike C. serious D. pleasant 7.  —Look at yourself in the ________. You look so beautiful. —Thank you. A. window B. mirror C. door D. wall 8.The river is about 10 meters _________. A.long B. wide C. high D.heavy 9.My brother is ______ tall ______ my father now. A. so, as B. the same, as C. as, as D. from. To 10.________ English, we also learn math and Chinese every day. A. Besides B. Except C. Beside D. But 五、完形填空题 I have a good friend. Her name is Lucy. She is in Class 3, Grade 8. We are in the same class, so we are always together. But we are very 1 . Lucy is quieter and more serious than me. I am more outgoing and I like to 2 jokes. She studies harder and gets better 3 . I like sports and I play ping-pong better than she does. We both like 4 . She likes to go to the parties that have great music. I like to go to the parties where I can talk with 5 . She enjoys reading, drawing and listening to music. I like watching movies and 6 games. 7 we have differences, we get on well with each other. When I feel sad, she always 8 me laugh. When she has problems, I help her 9 them. I think friends don’t have to be the same. 10 is not important. What’s important is that we care about each other. 1．A．different B．same C．like D．kind 2．A．say B．speak C．tell D．talk 3．A．books B．grades C．clothes D．food 4．A．studying B．playing C．reading D．parties 5．A．other B．the other C．others D．another 6．A．play B．plays C．playing D．to play 7．A．Because B．Although C．So D．But 8．A．makes B．lets C．helps D．wants 9．A．solve B．to solving C．solves D．solved 10．A．Difference B．Same C．Being the same D．Being different 六、选词填空，每空限填一词，每词限用一次。 there, few, important, eat, of, symbol, only, about, save, cut Pandas are so cute and lovely. They have become so popular that they are now a 1 of China. Scientists say there are now 2 than 2,000 pandas living in the forests. Pandas do not have many babies, maybe 3 one every two years. The babies often die from all kinds 4 illnesses and do not live very long. Adult (成年) pandas spend more than 12 hours a day 5 about 10 kilos of bamboo. Many years ago, there were a lot more bamboo forests and pandas in China, but then humans started to 6 down these forests. Pandas can’t find enough to eat and they are having fewer babies. An education program in Chengdu teaches children 7 pandas and other wild animals in danger. It also tells the children about the 8 of saving these animals. And the Chinese government is trying hard to help 9 the pandas. We all hope that in the future 10 will be a lot more pandas. 七、阅读填空 根据短文内容及所给提示，在文中的空白处填写一个正确的单词。 The ginkgo tree is one of the 1 (old) living plants on Earth. It 2 (appear) over 200 million years ago. In China, the ginkgo is a symbol of hope and long life. The 3 (large) ginkgo tree in Shanxi Province is over 1,400 years old. Its leaves turn bright yellow in autumn, 4 (attract) many tourists. Bees play 5 important role in pollination. Without them, 80% of plants cannot grow. 6 (sad), their number is dropping because of pollution and habitat loss. We can help by 7 (plant) more flowers and avoiding pesticides. The blue whale, 8 (weigh) up to 200 tons, is the 9 (heavy) animal on Earth. It lives in most oceans and helps maintain a 10 (health) ecosystem by providing food for other marine life. 1 / 5 学科网（北京）股份有限公司 $