期末测试卷-2024-2025学年外研版英语九年级下册

九年级下册综合测评卷 时间 100分钟 满分 120分 听力录音 一、听力(共20小题,计20分) .短对话理解 你将听到五段对话,每段对话后有一个小题。请在每小题所给的A、B、C三个选项中选出一个最佳选项。每段对话读两遍。 ( )1.What does Kevin like playing in his free time? A. B. C. ( )2.What will the weather be like tomorrow? A. B. C. ( )3.How does the boy often keep in touch with his parents? A. By writing letters. B. By sending emails. C. By telephoning them. ( )4.What is probably John's father? A. A farmer. B. A policeman. C. A doctor. ( )5.Where does the conversation probably take place? A. In a hospital. B. In a bank. C. On a street. . 长对话理解 你将听到两段对话, 每段对话后有几个小题。请在每小题所给的A、B、C三个选项中选出一个最佳选项。每段对话读两遍。 听下面一段对话,回答第6至7小题。 ( )6.What is Lisa's favorite subject? A. Physics. B. Music. C. English. ( )7.What is Ms.Karen like? A. Serious. B. Humorous. C. Clever. 听下面一段对话,回答第8至10小题。 ( )8.How does Anna feel now? A. Sick. B. Tired. C. Hungry. ( )9.Why does Anna probably have a cold? A. Because she wears thin clothes. B. Because she worked till late yesterday. C. Because the weather is cold these days. ( )10.What will the two speakers do then? A. Go to see a doctor. B. Eat some food. C. Buy some medicine. .短文理解 你将听到一篇短文,短文后有五个小题。请根据短文内容,在每小题所给的A、B、C三个选项中选出一个最佳选项。短文读两遍。 ( )11.What are the most popular pets in America? A. Birds and dogs. B. Cats and dogs. C. Dogs and fish. ( )12.What do some pets have according to the text? A. Rooms and clothes. B. Beds and rooms. C. Beds and clothes. ( )13.What can dogs help the deaf do? A. Turn on the TV. B. Answer the phone. C. Open the door. ( )14.Which pet is taught to help people who can't move easily? A. The dog. B. The cat. C. The monkey. ( )15.How may people living with pets feel? A. Happy. B. Nervous. C. Lonely. .信息转换 你将听到一篇短文。请根据短文内容,写出下面表格中所缺的单词,每空仅填一词。短文读两遍。 Emma's summer holiday Where In 16. with her family and her aunt's family What •They don't swim each day as the water is 17. sometimes. •Her mother and aunt enjoy lying on the beach. •Her father and uncle like 18. . •Bill always plays with his 19. . •Her brother prefers to watch 20. games on TV. 二、 单项填空(共10小题,计10分) ( )21.Peter was so excited when he received the to the important meeting. A. invention B. invitation C. collection D. celebration ( )22.—David didn't show up for class. —It's not like him to be . There must be something wrong with him. A. absent B. spare C. cross D. blind ( )23. You have already tried your best, so you worry about the matter. A. can't B. mustn't C. needn't D. couldn't ( )24.Mom won't let Richard go out he promises to be back by 10:00 tonight. A. if B. when C. since D. unless ( )25.My grandpa has Alzheimer's disease(阿尔茨海默病) so that he can't go to the bathroom or enjoy a meal by . A. himself B. his C. him D. her ( )26.Friends are those who make you smile, always open their hearts to you and encourage you to your dreams. A. achieve B. break C. require D. reduce ( )27. If each of us the rules of nature, our world will become better and better. A. followed B. follow C. follows D. following ( )28.[课标理念|时代精神] We look up to the great scientist Yuan Longping is a hero in our hearts forever. A. which B. who C. whose D. whom ( )29.We want to early so that we can avoid the heavy traffic. A. fall off B. take off C. set off D. turn off ( )30.—Don't throw rubbish everywhere, please. Building a clean city is our duty. — . A. Have fun B. You are joking C. Take it easy D. Sorry, I won't 三、完形填空(共10小题,计15分) I'm an overweight teenager. I'm only fifteen years old, and already I weigh over 90 kilograms. My weight was normal five years ago, but it just kept 31 — faster than I expected. Being an overweight kid is not easy. At school, I try to 32 sports activities.Why? Because I'm not good at sports. As you can probably 33 , I'm not the only one with a weight problem at my school. 34 , our school started a program called "Healthy Kids". Our teacher invited a doctor to give a talk. "Obesity(肥胖) is found in every area of the world. The number of obesity in children is growing quickly. Obesity can 35 some of the world's most dangerous diseases," said the doctor. "The good news is that we know the two main 36 of obesity — poor diet (饮食) and lack(缺少) of regular exercise. Luckily, we can control both of these. It's 37 too late to make changes. A little action can make a big difference in your health. Isn't that simple?" Encouraged by the message, I asked the 38 questions about how to set a proper goal. "Exercise is one of the keys. Only fifteen minutes of exercise a day can go a long way to losing weight. Eat a 39 diet and avoid soft drinks, 40 they're rich in sugar. You can take control of your own weight as long as you really want to." That day I decided to become physically active and keep a healthy diet. ( )31.A. returning B. increasing C. escaping D. falling ( )32.A. play B. enjoy C. avoid D. stop ( )33.A. spread B. warn C. tell D. guess ( )34.A. Recently B. Suddenly C. Actually D. Importantly ( )35.A. stick to B. turn to C. come to D. lead to ( )36.A. answers B. ideas C. causes D. lessons ( )37.A. never B. seldom C. often D. usually ( )38.A. teacher B. classmate C. doctor D. friend ( )39.A. hard B. cheap C. smooth D. healthy ( )40.A. until B. because C. though D. while 四、补全对话(共5小题,计5分) 根据对话内容,从方框内的选项中选出能填入空白处的最佳选项,其中有两个为多余选项。 A: Where is Lily? She didn't come to school today. B: Oh, she is in hospital. A: 41. B: She had an accident on her way to school. And her arm was hurt. A: Sorry to hear that. 42. B:When she was riding on the road, a car hit her. 43. A:That's terrible. 44. B: I'm going to the hospital to visit her. A: Let's go together after school, shall we? B: OK. 45. A: I agree with you. A. How did it happen? B. Don't ride side by side. C. Hope she will be all right soon. D. We should buy some flowers for her first. E. I'm going to see the doctor, too. F. What's wrong with her? G. She fell off the bike and got hurt. 五、阅读理解(共16小题,计40分) A Could you cook for yourself? Or would you like to cook for your parents on their birthdays or other special days? Come and join our cooking class. We promise you that you can cook delicious food in a month. Authentic (正宗的) Chinese Food Class Food: dumplings, noodles, fried rice, egg soup, rice porridge Place: No.58 Park StreetTime: 9:00 am-6:00 pm on weekends Fee (费用): $ 60 per person Tel: 204 924 3620 Joe's Hamburger Class Food: beef hamburgers, chicken hamburgers and fish hamburgers Place: No.1 Greenfield Road Time: Noon-10:00 pm Fee: $ 75 per person Tel: 020 1738 6896 Peppi's Italian Class Food: spaghetti(意大利细面条), steak(牛排), pizza and salad Place: No.1 Walkley Road Time: Noon-3:00 pm every day Fee: $ 150 per person Tel: 020 3658 2577 Uncle Ben's Seafood Class Food: all kinds of seafood Place: No.111 Spring Street Time: 8:00 am-noon on weekdays 3:00 pm-8:00 pm on weekends Fee: $ 130 per person Tel: 204 942 6302 ( )46.What can you learn to make at No.1 Greenfield Road? A. Fish hamburgers. B. Fried rice. C. Pizza and salad. D. Seafood. ( )47.If Lisa wants to learn to cook dumplings and seafood, how much should she pay? A. $135. B. $ 190. C. $210. D. $225. ( )48.Where is the text most probably from? A. A science report. B. A storybook. C. A guidebook. D. A food magazine. B In Auckland, the students from Deep Green Bush School are having a class. The weather is fine, so they will go fishing later. After that, they will eat lunch cooked on an open fire. They have no homework at the end of the day. "We are called a school, but we look nothing like other schools out there," says Joey Moncarz, the head teacher of Deep Green Bush School. "We don't do things like telling kids it is time to learn or practise math. When they are interested in doing it, they will do it." Moncarz was once a teacher of a mainstream school. After five years in the school of New Zealand, he left the school and founded Deep Green Bush School. In this school, there are only eight students. It has no classrooms or tests. If the weather allows, the students spend most of their day outdoors, exploring (探索)the forest, learning to fish, catching possums (负鼠) and learning about the animals and plants around. They won't learn the traditional school skills, such as reading, writing and math, until they begin to show an interest in them. "We don't have problem children," says Moncarz. "Our parents saw their kids were unhappy in mainstream education and they started questioning: is it right for kids to come home unhappily?" ( )49.What does the underlined word "mainstream" in the passage mean in Chinese? A. 特长 B. 高层 C. 主流 D. 职业 ( )50.Which of the following is not mentioned in the passage? A. The students don't have homework at the end of the day. B. Teachers don't tell students it is time to learn or practise math. C. The students are not allowed to use mobile phones. D. The school has no classrooms or tests. ( )51.What's the best title for the passage? A. Happy Kids B. A Special School C. An Unusual Teacher D. A Terrible School Life C Success is often considered to be the opposite of failure. To teenagers, it is the achievement of a goal or the completion of something they really need, such as good grades and the ability to get along well with their classmates. Some schools used to agree with most parents who measured (判定) the success of their children according to grades, but now they pay special attention to moral (道德的) education and character-building to make sure teenagers achieve success in building human relationships. Schools give chances to students to discover their hidden ability so that they can enjoy some form of success. For example, those good at speaking skills are advised to take part in speech competitions while those interested in arts are expected to perform in front of their classmates. Teenagers also get the pleasure of success when they join their favorite clubs. Teenagers are often told that success is not easy to achieve and that success lies in hard work. Great efforts have to be put into project work. Doing things much later than planned should be avoided as this will lead to a mountain of work which finally makes them nervous. Another good quality (品质) is a sense of responsibility which makes them remember that a task has to be completed. Sticking to moral values is the key to success too. Honest teenagers will win the trust of friends, leading to good relationships. Self-motivation (自我激励) is another quality to be developed, for self-motivated teenagers will have the strong will and drive to perform a task and finally get to enjoy a sense of achievement. ( )52.What does the underlined word "they" in Paragraph 1 refer to (指代)? A. Their classmates. B. Some schools. C. Most parents. D. Their children. ( )53.What can we learn from Paragraph 3? A. Project work makes teenagers nervous. B. Good qualities will lead to a happy life. C. Teenagers are advised to complete tasks in time. D. Taking responsibility will make work much easier. ( )54.What is important in making students strong-minded? A. Honesty. B. Self-motivation. C. Communication. D. Friends' trust. D "Motasharefon bema'refatek!" is often heard in Arabs' daily talks. This greeting in the language Arabic means "Nice to meet you!" You may find Arabic difficult to understand, but the following facts can offer you some basics. Arabic is the language of over twenty countries across the Middle East and North Africa. It's also one of the six official languages of the UN. Now about 400 million people worldwide speak Arabic. Arabic has different varieties. One of them is Modern Standard Arabic. It is taught at schools in all Arabic-speaking countries and used formally over the media. Colloquial Arabic is another variety which people in the Arab world usually use in their everyday life. Arabic is written from right to left in a beautiful and flowing script. Written Arabic is formed from eighteen different curves(曲线) with dots () above or below. The curve () with one dot below is pronounced /b/, two on top is /t/, and three on top is /th/, while the curve () with two dots below is pronounced /y/. A main feature of Arabic is the three-letter root system. Almost every Arabic word is based on a root of three letters. If you take a root and add other letters to it, you can create many words related to the meaning of that root. For example, "k-t-b" is a common root in Arabic. Some words from that root are kitaab ("book") and maktaba ("library"). There are more facts about Arabic for you to explore. You'll find that learning about it helps open up a door to a different culture and provides a new way of thinking about the world. ( )55.How many varieties of Arabic are mentioned in the passage? A. Two. B. Three. C. Four. D. Five. ( )56.[课标新增|图文转换] According to the passage, which of the following is pronounced /b/ in Arabic? A. B. C. D. ( )57.What does the underlined root "k-t-b" in Paragraph 5 most probably mean? A. Cooking. B. Singing. C. Writing. D. Swimming. ( )58.Why does the author write this passage? A. To introduce the language Arabic. B. To tell stories from Arab countries. C. To encourage people to visit Arab countries. D. To advise people to protect the language Arabic. 阅读下面短文,并用英语回答问题(请注意每小题后面的词数要求)。 E Desert control is a huge challenge. In the past, China had much to learn from the rest of the world. But now the shoe is on the other foot. It's time for China! A Special Glue Researchers from Chongqing Jiaotong University develop a special glue to change desert ground into soil in which people can grow plants. The "sand glue" made from plants is used to help keep water, nutrients (营养素) and air. And it has been used in different areas. The Past and the Present Nearly 30 years ago, the Kubuqi Desert, the seventh largest desert in China, was barren(贫瘠的) land with no future. The local people called the Kubuqi Desert the "sea of death". Thanks to our government, chances came. The Kubuqi people have changed the desert into an oasis(绿洲). It has offered chances to the locals to get more money in different ways like selling farm products. They change the desert and the desert helps them. It's a win-win situation. An Interview in Yulin (Li has planted more than 2,300 mu of forest. ) Q: Did your family support you when you decided to plant trees? Li: Not really. My family was strongly against my idea. My son even brought me back home, but the next day I went there again. Q: Did you have any difficulties? Li: Yes. At that time, the living conditions in the mountains were really terrible, and I didn't have any experience. Though I worked more than 10 hours every day, less than 10% of the trees could be alive. Q: How did you solve the problem? Li: I bought books and used what I learned to plant trees. I tried again and again. 19 years has passed, and more than 95% of the trees are alive now. Q: It took you 19 years to plant trees. Any regrets? Li: No. It's my dream. And my biggest wish is that everyone plants a few trees every year. 59.Why do researchers from Chongqing Jiaotong University develop a special glue?(不超过15个词) 60.Who called the Kubuqi Desert the "sea of death"?(不超过5个词) 61.What is Li's biggest wish?(不超过10个词) 六、单词拼写(共5小题,计5分) 62.Labor can create w (财富) and at the same time beauty is made by labor,too. 63.We should give more attention to p (恰当的) exercise and getting enough sleep. 64.I liked eating sweet food and s (很少地) had vegetables in the past. 65.One thing we should keep in mind is that no matter what a small e (努力) we make, it will make a difference. 66.Everyone has a r (角色) to play in making our country more beautiful. 七、书面表达(共1题,计25分) 假如你是李华,你的英国朋友Tracy的学校即将开设特色选修课程,她正在考虑是否选修汉语,来信询问你的建议。请你根据所给提示给她写封回信。 要点:(1)给出你的建议; (2)谈谈学习汉语的重要性; (3)结合自身经历,介绍至少2种学习汉语的方法。 要求: (1)必须包含所给要点,可适当发挥; (2)语句通顺,意思连贯,语法正确,书写规范; (3)文中不得出现真实人名、校名或地名; (4)词数100左右(开头和结尾已经给出,不计入总词数)。 Dear Tracy, I'm so glad to hear from you. I hope my advice can help you. Yours, Li Hua 九年级下册综合测评卷答案 一、听力 16.England 17.cold 18.fishing 19.dog 20.football 二、单项填空 21.B 考查名词词义辨析。句意:当彼得收到这场重要会议的邀请时,他非常激动。invention 发明;invitation 邀请;collection 收集物;celebration 庆典。根据句意可知选B。 22.A 考查形容词词义辨析。根据"didn't show up"可知David缺席了,故用absent。 23.C 考查情态动词的用法。根据设空前的"你已经尽了最大努力"可知,此处表示"你就不必担心这件事了"。needn't意为"不必",符合题意。 24.D 考查连词的用法。句意:妈妈不会让Richard出去,除非他保证今天晚上十点之前回来。故所缺的词是 unless。 25.A 考查代词的用法。句意:我爷爷患有阿尔茨海默病,因此他不能自己上厕所,也不能自己吃饭。根据句意可知空处应填代表男性的反身代词himself,故选A。 26.A 考查动词词义辨析。句意:朋友是那些使你微笑,总是向你敞开心扉并且鼓励你实现梦想的人。achieve实现;break打破;require需要;reduce降低。根据语境可知选A。 27.C 考查动词时态。句意:如果我们每个人都遵循自然规律,我们的世界将变得越来越好。含有if引导的条件状语从句的主从复合句遵循"主将从现"的原则,主句用的是一般将来时,从句要用一般现在时。且each of后接复数名词或代词时,谓语动词通常用单数。故选C。 28.B 考查定语从句中的关系代词。先行词为Yuan Longping,指人,且关系词在定语从句中作主语,故应用关系代词who。 29.C 考查动词短语辨析。句意:我们想早点出发,这样可以避开拥挤的交通。fall off掉下;take off脱下;set off动身,出发;turn off关闭。结合句意可知选C。 30.D 考查交际用语。A项意为"玩得开心";B项意为"你在开玩笑吧";C项意为"放轻松";D项意为"对不起,我不会了"。问句句意:请不要到处扔垃圾。建设一座干净的城市是我们的责任。故选D。 三、完形填空 【短文大意】 作者有超重的健康问题却不想运动,他从学校邀请的一位医生那里了解到肥胖的原因,最终决定运动并健康饮食。 31.B 句意:五年前我的体重是正常的,但它一直在增长,比我预期的更快。return返回;increase增加;escape逃脱;fall落下。故选B。 32.C 根据空后的"Why? Because I'm not good at sports"并结合选项可推知此处是说,在学校作者尽量避免体育活动。 33.D 此处是说"正如你可能猜到的"。spread传播; warn警告;tell告诉;guess猜。故选D。 34.A 根据空后的"我们学校开办了一个叫‘健康孩子’的项目"并结合选项可知应选A项。 35.D 句意:肥胖可能会导致一些世界上最危险的疾病。stick to坚持;turn to转向; come to合计;lead to导致。结合上下文可知空处应用lead to。 36.C 根据空后的"poor diet (饮食) and lack(缺少) of regular exercise"可推知,此处是说肥胖的两个主要原因。 37.A 此处是说"改变永远不晚"。never绝不,从不; seldom很少; often经常;usually通常。故选A。 38.C 联系上下文可推知此处应是问医生。故选C。 39.D 根据空后的"and avoid soft drinks"可推知此处是说健康饮食,故选D。 40.B 根据空前的"avoid soft drinks"和空后的"they're rich in sugar"可知空处应填because,故选B。 四、补全对话 41—45 FAGCD 五、阅读理解 【A篇短文大意】 本文主要介绍了四个烹饪课程的情况。 46.A 细节理解题。根据Joe's Hamburger Class中的"Food: beef hamburgers, chicken hamburgers and fish hamburgers"及"Place: No.1 Greenfield Road"可知答案为A。 47.B 细节理解题。根据Authentic (正宗的) Chinese Food Class和Uncle Ben's Seafood Class中的价格信息可知,如果Lisa想要学习烹饪饺子和海鲜,她需要支付$60+$130=$190。 48.D 文章出处题。本文主要介绍了四个烹饪课程的情况,故本文最有可能来自一本食物杂志。 【B篇短文大意】 本文主要介绍了Joey Moncarz在奥克兰创办的一所特别的学校,该学校提倡一种新型的教育理念。这里没有教室,没有考试,孩子们被给予了充分的自由。 49.C 词义猜测题。结合画线词后的内容可推知,Moncarz曾经是一名主流学校的老师。故选C。 50.C 细节理解题。C项表示"学生们不被允许使用手机",这在文中并未提及,故选C。 51.B 标题归纳题。通读全文可知,本文主要介绍了奥克兰的一所特别的学校,故B项最适合作本文的标题。 【C篇短文大意】 本文主要介绍了成功对青少年来说意味着什么以及成功的关键。 52.B 代词指代题。画线词前提到,一些学校过去和大部分家长的看法一致,都根据成绩好坏来判定孩子是否成功。根据画线词后的"特别关注道德教育和品格的培养"可知,they指代的是前面提到的"Some schools",故选B。 53.C 推理判断题。根据第三段中的"Doing things much later than planned should be avoided as this will lead to a mountain of work which finally makes them nervous"可推知,青少年应该及时完成任务,故选C。 54.B 细节理解题。根据最后一段中的"Self-motivation (自我激励) is another quality to be developed, for self-motivated teenagers will have the strong will and drive to perform a task"可知答案为B。 【D篇短文大意】 本文介绍了和阿拉伯语有关的一些知识,包括它的种类和写法等。 55.A 细节理解题。根据第三段中的"Arabic has different varieties. One of them is Modern Standard Arabic"及"Colloquial Arabic is another variety"可知,文章中提到了两种阿拉伯语,故答案为A。 56.B 细节理解题。根据第四段中的"The curve() with one dot below is pronounced /b/"可知应选B。 57.C 推理判断题。根据第五段中的"For example, ‘k-t-b’ is a common root in Arabic. Some words from that root are kitaab (‘book’) and maktaba(‘library’)"并结合四个选项可推知,词根k-t-b的含义和"写作"有关,故答案为C。 58.A 写作意图题。本文主要介绍了阿拉伯语这种语言,故选A。 【E篇短文大意】 本文主要介绍了中国在沙漠治理方面所取得的成绩。 59.To change desert ground into soil in which people can grow plants. 60.The local people. /The Kubuqi people. 61.Everyone plants a few trees every year. 六、单词拼写 62.wealth 63.proper 64.seldom 65.effort 66.role 七、书面表达 One possible version: Dear Tracy, I'm so glad to hear from you. Knowing you have an interest in Chinese, I suggest you choose the Chinese course. With the development of China, Chinese is becoming more and more popular. Learning Chinese is not only a way to communicate, but also a chance to admire Chinese culture. As a Chinese, I have been learning Chinese for many years. I have much experience to share with you. In my opinion, there are many ways to learn Chinese. It's useful to read Chinese books and listen to Chinese songs. What's more, you are supposed to join a Chinese club to practice your spoken Chinese. Learning is a lifelong journey. Keep practicing every day, and then it will bring something new. I hope my advice can help you. Yours, Li Hua 听力录音材料: .短对话理解 你将听到五段对话,每段对话后有一个小题。请在每小题所给的A、B、C三个选项中选出一个最佳选项。每段对话读两遍。 1.W: I think playing the piano is very interesting. What about you, Kevin? M: I like playing the violin in my free time. 2.W: The weather report says it will be a sunny day tomorrow. M: Great. I hate rainy days. 3.W: Do you often send emails to your parents? M: No, I don't. I prefer talking with them on the phone. 4.W: John, why are you still at school? M: My father is busy working in the hospital, and he asked me to wait for him here. 5.W: Excuse me, sir. Can you tell me how to get to the nearest museum? M: Of course. Go along this street and turn left at the second crossing. .长对话理解 你将听到两段对话,每段对话后有几个小题。请在每小题所给的A、B、C三个选项中选出一个最佳选项。每段对话读两遍。 听下面一段对话,回答第6至7小题。 M: Hello, Lisa! What's your favorite subject? W: I like physics best of all the subjects. M: Who teaches you that subject? W: My teacher is Ms. Karen, from Germany. M: What's she like? Is she serious? W: No. She is always humorous. 听下面一段对话,回答第8至10小题。 M: You look a little weak today, Anna. What's the matter? W: I feel a little sick now. M: Maybe you have a cold. W: I think so. It is very cold these days. M: Have you seen the doctor? W: No, I haven't. I'm going to buy some medicine. M: OK. I'll go with you. Let's go now. W: You are so kind. Thank you. .短文理解 你将听到一篇短文,短文后有五个小题。请根据短文内容,在每小题所给的A、B、C三个选项中选出一个最佳选项。短文读两遍。 Americans love pets. They spend a lot of money buying and feeding them. They try to keep their pets happy and healthy. Cats and dogs are the most popular pets. They are often considered as members of the family. Some pets have their own beds and clothes. For some Americans, their pets are more than animals. Guide dogs help people who can't see. If people have trouble hearing, dogs help them open the door when the doorbell rings. The people at Helping Hands are teaching monkeys to help people who can't move easily by themselves. Pets can help improve some people's lives. Most Americans think that people living with pets are much healthier and happier than those who don't have pets. .信息转换 你将听到一篇短文。请根据短文内容,写出下面表格中所缺的单词,每空仅填一词。短文读两遍。 Good morning, Lily. This is Emma speaking. I'd like to share something with you. My family and I are in England at the moment. We are staying with my aunt's family. My aunt invites us to come here every summer. We go to the beach every day but we don't always swim, because sometimes the water is very cold. My mum and aunt enjoy lying on the beach. My dad and uncle are interested in fishing. My cousin, Bill, always plays with his dog. My brother doesn't like to go to the beach. He watches football games on TV all the time. He never misses sports shows! What do you usually do during your summer holiday? Call me back. 学科网(北京)股份有限公司 $$