四川南充市高坪中学2026年春季第一次质量监测八年级英语

**基本信息** 本试卷聚焦初二年级英语核心素养，通过真实情境（如日常对话、校园调查、应急处理）与社会热点（青少年视力健康），全面考查听说读写能力，兼顾语言运用与思维品质培养。 **题型特征** |题型|题量/分值|知识覆盖|命题特色| |----|-----------|----------|----------| |听说运用|5节/35分|日常交际、信息提取（如活动安排、火灾演练）|对话贴近学生生活（如运动、生病），独白填空考查细节抓取| |阅读理解|3节/50分|图表分析（学生周末活动）、应急处理、个人成长（胎记故事）、健康知识（感冒与流感）、社会现象（盲盒）|B篇应急处理培养问题解决能力，C篇成长故事渗透文化意识| |语言知识运用|3节/40分|语法（时态、连词）、词汇（动词短语）、语篇填空（书法经历）|短文主题积极（友谊、习惯养成），语境化考查语言运用| |书面表达|1题/25分|健康话题（近视原因、影响及保护措施）|结合社会热点，引导学生思考并输出结构化观点|

八年级下英语第一次月考答案 第一部分 听说运用(共四节，满分35分) 第一节 (共5小题；每小题1分，满分5分) 1-5 EDCBF 第二节 (共10小题；每小题1分，满分10分) 6-10 CCBBC 11-15 CABAB 第三节 (共5小题；每小题2分，满分10分) 16. Time 17. panic 18. signs 19. lift 20. instructions 第四节 (共5小题；每小题2分，满分10分) 21-25 BCEDA 第二部分 阅读（共三节，满分50分） 第一节（共15小题；每小题2分，满分30分） 26-30 BCACC 31-35 BAACB 36-40 BACBC 第二节（共5小题；每小题2分，满分10分） 41-45 EBDFA 第三节（共5小题；每小题2分，满分10分） 46. history/development 47. popularity 48.exciting 49.worried 50.参考例句： I think blind boxes aren't good for students. Because they may waste money and time. 第三部分 语言运用（共三节，满分40分） 第一节（共10小题，每小题1.5分，满分15分） 51-55 ABACC 56-60 BABCC 第二节（共5小题；每小题2分，满分10分） 61. take care of 62.bad habits 63.Turn off 64. What’s more 65.getting into 第三节（共10小题；每小题1.5分，满分15分） 66. scared 67.by 68. holding 69.to get 70. chatted 71.failure 72. Surprisingly 73. better 74. achievement 75.with 第四部分 写作（满分25分） 参考范文： The eyesight of many students is getting worse and worse. Here are many reasons. Some students see the screen for a long time. Some keep their eyes too close to the books while reading and others often read in poor light. Myopia can cause a lot of trouble. We can’t see the blackboard clearly without glasses. Also, it's not convenient for us to swim or bath with glasses on. So, it's important to protect our eyes. First, we shouldn't spend too much time on the mobile phone or the computer. Second, going outside for exercise and doing eye exercises regularly are also helpful. What's more, we should often have our eyesight checked. Let's take action now. Hope all of us can have bright eyes and a bright future. 学科网（北京）股份有限公司 $Units . one . to two. 第一节，听下面5段对话，选择与所听对话相符的图片，每段对话读两遍。Number one, why do you love skateboard? Because it's a lot of fun and it's good exercise too. Why do you love skate fording? Because it's a lot of fun and it's good exercise too. Number two, i'd like to join the yoga class. That's fine. We have classes from seven to nine every evening. I'd like to join the yoga class. That's fine. We have classes from seven to nine every evening. Number three, I heard my ARM playing tennis on saturday. I can hardly lift my arms at all. It's really sour. Oh, that's too bad. I hope you feel Better soon. I heard my ARM plane tennis on saturday. I can hardly lift my arms at all. It's really sour. Oh, that's too bad. I hope you feel Better soon. Number four, how did the test go? What was the doctor suggestion? The doctor suggested I avoid eggs, cheese and red meat. Instead, I should eat more fish and chicken. How did the test go? What was the doctor suggestion? The doctor suggested I avoid eggs, cheese and red meat. Instead, I should eat more fish and chicken. Number five, sleep is so important for health. I try to sleep at least seven hours every night. Same here. IT makes a huge difference in how I feel. Sleep is so important for health. I try to sleep at least seven hours every night. Same here. IT makes a huge difference in how I feel. 第二节听下面四段对话。每段对话后有几个小题，从题中所给的ABC3个选项中选出最佳选项，每段对话读两遍。听第六段对话，回答第六至第7两个小题。Carman is your brother a reporter? No, he's actually a musician. He plays in a band. What's your brother going to do this weekend? Is he going to play with the band? Well, he usually plays with the band at weekends. But this weekend they're going to the countryside. Are they going hiking? No, they're going rock climbing. Carman, is your brother a reporter? No, he's actually a musician. He plays in a band. What's your brother going to do this weekend? Is he going to play with the band? Well, he usually plays with the band at weekends, but this weekend they're going to the countryside. Are they going hiking? No, they're going rock climbing. 听第七段对话，回答第八至第9两个小题。Are you OK Diana? I'm not sure. I feel kind of strange, hot and cold at the same time. Do you have any allergies? What did you have for a lunch? I don't think so. Just a chicken sandwich. Do you have a stomach cake? No, but I think I might have a fever. You could . be coming down with the flu. Maybe you should leave now and get some rest. I can't do that. I have a meeting in an hour. I think i'll be fine. You know, I might not have a fever. I think it's just a little hot in here. Are you OK Diana? I'm not sure I feel kind of strange, hot and cold at the same time. Do you have any allergies? What did you have for a lunch? I don't think so. Just a chicken sandwich. Do you have a stomach cake? No, but I think I might have a fever. You could be coming down with the flu. Maybe you should leave now and get some rest. I can't do that. I have a meeting in an hour. I think i'll be fine. You know, I might not have a fever. I think it's just a little hot in here. 听第八段对话，回答第十至第十二三个小题。Are you OK jim? No. I have to meet an at five thirty P. M. And look at this list. Let me help. I'm not busy at . the moment. Oh, can you? Thanks, nina. No problem. Should I call tmo from the health thinky office? Yes, please. And then i'll email the moscow office. Can you tell them i'll . all tomorrow, okay, and i'll get some flowers for ally. You're going to the hospital to see . her tonight, right? Yes, thanks a lot. I'll do the same for you anytime. Are you OK jim? No. I have to meet an at five thirty P. M. And look at this list. Let me help. I'm not busy at the moment. Oh, can you? Thanks, nina. No problem. Should I call tmo from the health thinky office? Yes, please. And then i'll detail the moscow office. Can you tell them i'll . all tomorrow, okay, and i'll get some flowers for ally. You're going to the hospital to see . her tonight, right? Yes, thanks a lot. I'll do the same for you anytime. 听第九段对话，回答第13至第15 3个小题。what do you like to do in your free time? I like reading, and I also enjoy hiking in the mountains in summer. I really like reading too. What is your favorite book? My favorite book is the wolf. What is yours? I love the wolf king too. My favorite book is the magical island. IT sounds interesting. Do you have any other hobby? Yes, I enjoy watching movies and cooking. Oh, you actually like cooking. I'm really bad at cooking, so I always eat out. Cooking is not that difficult, you just need some practice if you want. We can cook together this saturday. That would be really nice. What do you like to do in your free time? I like reading, and I also enjoy hiking in the mountains in summer. I really like reading too. What is your favorite book? My favorite book is the wolf king. What is yours? I love the wolf too. My favorite book is the dal island. IT sounds interesting. Do you have any . other hobby? Yes, I enjoy watching movies and cooking. Oh, you actually like cooking. I'm really bad at cooking, so I always eat out. Cooking is not that difficult. You just need some practice if you want. We can cook together this saturday. That would be really nice. 第三节，听下面一段独白，根据所听内容完成下面的表格，每空一词独白读三遍。Hello everyone, we'll have a fire practice this monday, and I want to make sure you know exactly what to do. The practice will start at eleven in the morning. When you hear the bell, please stand up from your seat, do not run or panic, leave all your things behind, do not take anything with you, cover your mouth and nose with one of your hands, follow the signs to the nearest door, and move quickly but quietly out of the building. Remember, you must not use the lift during the practice. Once outside, we will meet in the yard behind the building. Please stay together and wait for more instructions. Got IT. Hello, everyone, we'll have a fire practice this monday, and I want to make sure you know exactly what to do. The practice will start at eleven in the morning. When you hear the bell, please stand up from your seat, do not run or panic, leave all your things behind, do not take anything with you, cover your mouth and nose with one of your hands, follow the signs to the nearest door, and move quickly but quietly out of the building. Remember, you must not use the left during the practice. Once outside, we will meet in the yard behind the building. Please stay together and wait for more instructions. Got IT. Hello everyone, we'll have a fire practice this monday, and I want to make sure you know actly what to do. The practice will start at eleven in the morning. When you hear the bell, please stand up from your seat, do not run or panic, leave all your things behind, do not take anything with you, cover your mouth and nose with one of your hands, follow the signs to the nearest door, and move quickly but quietly out of the building. Remember, you must not use the lift during the practice. Once outside, we will meet in the yard behind the building. Please stay together and wait for more instructions. Got IT. 高坪中学2026年春季初二年级第一次素质测评 英 语 试 卷 第一部分 听说运用（共五节，满分35分） 第一节（共5 小题，每小题 1 分，满分 5 分） 听下面五段对话，选择与所听对话相符的图片。每段对话读两遍。 A B C D E F 1. ________ 2. ________ 3. ________ 4. ________ 5. _________ 第二节（共 10 小题，每小题 1 分，满分 10 分） 听下面四段对话，每段对话后有几个小题，从题中所给的A、 B、C 三个选项中，选出最佳选项。每段对话读两遍。 听第六段对话，回答第6 至第7 两个小题。 ( )6. What does Carmen ’s brother work as? A. A reporter. B. An athlete. C. A musician. ( )7. What is Carmen ’s brother going to do this weekend? A. Go skiing. B. Go hiking. C. Go rock climbing. 听第七段对话，回答第 8 至第9 两个小题。 ( )8. What did Diana have for lunch? A. Some pumpkin pie. B. A chicken sandwich. C. Some spaghetti. ( )9. How soon is Diana ’s meeting? A. In half an hour. B. In an hour. C. In an hour and a half. 听第八段对话，回答第 10 至第 12 三个小题。 ( )10. What time does Jim have to meet Anne? A. At 3:30 p.m. B. At 4:30 p.m. C. At 5:30 p.m. ( )11. What does Nina offer to do? A. Make a guest list. B. Email Timo. C. Email the Moscow office. ( )12. What will Jim give Ellie tonight? A. Flowers. B. Cash. C. Ink. 听第九段对话，回答第 13 至第 15 三个小题。 ( )13. When does the man like hiking in the mountains? A. In autumn. B. In summer. C. In spring. ( )14. What is the man ’s favourite book? A. The Wolf King. B. The Magical Island. C. The Tiny Flames. ( )15. When will the speakers cook together? A. This Friday. B. This Saturday. C. This Sunday. 第三节（共5 小题，每小题2 分，满分 10 分） 听下面一段独白，根据所听内容完成下面的表格 。每空一词。独白读三遍。 A fire practice 16. _______ At 11 a.m. this Monday. Dos and don ’ts ·Do not run or 17. _____________. ·Leave all your things behind. ·Cover your mouth and nose. ·Follow the 18. _____________ to the nearest door and move quickly but quietly out of the building. ·Don ’t use the 19. _____________. ·Meet in the yard behind the building and wait for more 20. ________. 第五节、（共5小题，每小题1分，满分5分） 请根据下面的对话内容，从对话后的选项中选出可以填入空白处的最佳选项，使对话的意思连贯完整。 (Jason is talking with his classmate Andy.) A: Hey, Andy! You look really pale (苍白的). 21. ______ B: Hi, Jason. I think I have a cold. My nose is stuffy (鼻塞的) and I feel tired. A: Oh no! 22. ______ B: Yes. But the pills make me sleepy. A: You often get sick. Maybe you should exercise more. It helps make you strong, right? B: Yes. 23. ______ A: I play football in my free time! It's fun running around with my friends. B: Football sounds great! 24. ______ A: We play after school on Wednesdays and Fridays. If you join us, I can teach you. B: Really? 25. ______ I think it will make me strong. A: Of course! First, drink water and rest. Then we'll play together! B: Sure. Thanks, Jason. A. It ’s a deal. B. What ’s the matter? C. Did you take some medicine? D. When do you usually play football? E. What kind of exercise do you do in your free time? 第二部分：阅读理解（共三节，满分50分） 第一节（共15小题；每小题2分，满分30分） 阅读下面短文，从每题所给的A、B、C三个选项中选出最佳选项。 A How much free time do you have on the weekend? What do you usually do in your free time? We did a survey of students in No. 5 Middle School. Let's see the results. Sharing stories I love playing soccer on weekends, because it makes me excited. But I broke my leg in a soccer game last year and was away from school for two weeks.Now my mom doesn't let me play soccer again. We often fight about it. I feel so terrible. Nick I want to do volunteer（志愿）work on weekends, but I don't have much time. I finished my homework and housework early last Sunday, so I went to clean the park with my classmates on Sunday afternoon. I felt good. I plan to do more volunteer work. Mary ( )26. How much free time do 66% of the students have each weekend? A. A whole day. B.About half a day C. More than a day. ( )27. Most boys would like to in their spare time. A.do housework B.do volunteer work C. play sports ( )28. Why does Nick often fight with his mother? A. Because he can't play soccer again. B. Because he does badly in his exams. C. Because he often hurts his legs. ( )29. What did Mary do on Sunday afternoon? A.She finished her homework and housework. B.She washed clothes at home. C.She cleaned the park with her classmates. ( )30. Where can we see the material? A.From a history report. B.From a dictionary. C.From a school newspaper. B ①An emergency（突发事件） is a sudden situation that can harm someone's health, safety, or property. Knowing how to deal with it can make a big difference. The key is to stay calm and act wisely. ②First, don't panic. If you feel scared or confused, stop and take deep breaths. This helps you think clearly instead of acting out of fear. Staying calm also helps others around you feel less afraid. Tell yourself you can manage the situation. Look around carefully to understand what's happening before you do anything. ③Next, decide what kind of emergency it is. Is someone hurt, like from a car accident or a fall? Or is it something like a fire or a flood that could damage (摧毁）a building? For example, if someone is bleeding a lot or can't breathe, it's a medical emergency. If it's a fire or a chemical（化学的） spill, it might be a danger to everyone nearby. Knowing this helps you choose the right action. ④Then, call for help. In the USA, call 911. In other places, use the local emergency number. Tell the person on the phone where you are and what's wrong.Answer their questions clearly---- they need information to send the right help fast.Even if you can't talk much, stay on the line so they can find you. ⑤If it's safe, help others. If someone is in danger, guide them to a safe place. But if it's too risky, wait for trained people to step in. If someone is hurt and awake, talk to him. Ask their name or tell them help is coming to keep them calm. ⑥ Emergencies can change quickly, so keep watching the situation. By staying calm and acting smart, you can help yourself and others stay safe. ( )31. What does the underlined word "it" in Paragraph 1 refer to? A. Someone's health. B. An emergency. C. A social situation. ( )32. How does the writer support the idea of staying calm in Paragraph 2? A. By explaining its benefits(好处）. B. By comparing it to panic. C. By giving examples of emergencies. ( )33. Why is it important to decide the type of emergency? A. To know what action to take. B. To stay calm and think clearly. C. To tell others what happened. ( )34. What should you tell the person when you call for help? A. Your name and age. B. How many people are hurt. C. Where you are and what's wrong. ( )35. Which is the right structure of the passage? ①②③④ ① ①②③④⑤ A. B. ②③④⑤ C. ⑤⑥ ⑥ ⑥ C I think everyone has something they don't like about themselves. For me,it was the birthmark(胎记）on my face. It was bright red, the colour of a strawberry. Sometimes,I felt people secretly(秘密地）looking at my face. But when I turned my head, they looked away. On crowded buses and trains, it felt just like a disaster(灾难）. With so many people around me, my birthmark burnt red hot.So I always kept my hair long to cover it until that day. It was a cloudy morning. A new student named Maddie arrived in our class. She sat right beside me. Instead of looking away, Maddie studied my face. This made me so nervous.Clouds came through the window and filled my heart. Suddenly, she said something I would never forget. "Sally, right?" she said. "You have a red rose on your face. How beautiful!" I looked up and met her smiling eyes. Although I only replied "thank you", it turned sunny in my heart. When I got home, I rushed to the bathroom and looked in the mirror. For the first time, I could look at my birthmark without quickly turning away. The shape of it was really like a flower. The next day, to my surprise, Maddie painted a red rose on her own face! I haven't told Maddie the whole story yet. Anyway, she has changed me. I have already learnt that I am what I am. Everyone has something special and different -----that is what’s interesting. ( )36. Which following sentence can be put in “ ” A. I felt very angry. B. Her words touched me. C. She looked so sad. ( ) 37.Which one is the right order for the passage? ① Maddie said Sally's birthmark was like a red rose. ② Sally always covered her birthmark with long hair. ③Maddie painted a red rose on her own face. ④Sally looked at her birthmark bravely in the mirror. A. ② ① ④ ③ B. ② ① ③ ④ C. ① ② ④ ③ ( ) 38.Where might this passage come from? A. A science report. B. A newspaper. C. A storybook. ( )39.What is the main purpose of the passage? A. To introduce a new friend. B. To share a growth experience. C. To explain how to make friends. ( )40. What is the best title for the passage? A. A New Classmate B. My Beautiful Birthmark C. A Red Rose on the Face 第二节（共5小题，每小题2分，满分10分） 根据短文内容，从短文后的A~F选项中，选出5个适当的选项补全短文,其中有一项多余。 Do you have a sore throat, a runny nose and a headache? Do you keep coughing and sneezing (打喷嚏)?If you do, you probably have a cold or flu, but which one? Although both colds and flu result from viruses, they are different in some ways.41. Colds, which usually last about a week, make a difference to the nose most. They usually cause a running nose and sneezing. 42. Sometimes,they result in a headache, a cough and some aching problems. 43. People with flu usually get all the problems above. However, they also get a high fever, a dry cough and much worse aching. The problem also lasts much longer. Sometimes, you can't get better for at least two weeks. Flu can be a terrible thing. The old, who are less healthy than most young people, can die from flu.44. The injection(预防) is necessary and can truly save them. Try not to touch your nose or eyes if you have been close to someone who has a cold. 45. If you catch a cold or flu, go to bed for a while. Doing what we tell you will help you get better. Drink lots of water and stay in a warm,well aired room. If you have a headache, take some medicine. And it's a good idea to cover your nose and mouth when you sneeze. A. Wash your hands after cleaning your nose. B. What's worse, you may have to open your mouth to breathe. C. Today, we will talk about how to cure(治疗)these two illnesses at school. D. Flu is much more serious. E. Here are the differences between them. F. So old people should have a flu injection before winter when flu is the most common. 41. 42. 43. 44. 45. 第三节（共5小题，每小题2分，满分10分） 阅读下面短文，根据其内容完成表格中所缺的信息。（注意 46-50小题每空限填一词，50小题15词左右） In the film Forrest Gump, there's a famous saying. "Life is like a box of chocolates.You never know what you're going to get. " It's the same with blind boxes. The history of blind boxes can date back to (追溯到） lucky bags sold in Japan from the late 1860s. In recent years, it has become quite popular with young people in China. During Double 11, a leading blind box company in China sold 55, 000 dolls in just 9 seconds. Last year, over 200, 000 Chinese spent more than 20,000 yuan on blind boxes. One reason for their popularity is the cute appearance of the toys inside the boxes. They can be placed anywhere in your home. But the most interesting thing about blind boxes is the feeling of what you expect and what you get.The excitement of getting the right toy is like winning a prize. While the boxes are certainly enjoyable to some, others worry that children might spend too much money on these toys. " The blind box business makes full use of gambling psychology(赌博心理)，”said an expert.“ Young people, especially those aged 18 to 35, usually look for the excitement brought by higher risks, which leads to impulse buying（沖动消费）. Blind Boxes The 46.________of blind boxes · They come from lucky bags in Japan from the late 1860s. · They are popular in China in recent years. The 47. of blind boxes · During Double 11, a leading blind box company once sold 55,000 dolls in just 9 seconds. · Last year, over 200,000 Chinese spent more than 20,000 yuan for blind boxes. Reasons for their popularity · The toys look cute and can be placed anywhere at home. · It is 48. to get the right toy you want. Different opinions about them · Some people think it’s fun to buy them. · Others are 49. because people will keep on buying if the things they get are different from their expectations. · The experts：Young people lead to impulse buying（沖动消费）easily. 50. What do you think of blind boxes? Why do you think so? (About 15 words) 第三部分：语言知识运用（共三节，满分40分） 第一节（共10小题，每小题1.5分，满分15分） 先通读下列短文，掌握其大意，然后从短文各题所给的A、B、C三个选项中，选出最佳选项。 Lucy, a 14-year-old girl, really likes classical music, such as famous piano works.But her best friend loves rock music. Their different 51 in music make it hard for Lucy to share her ideas. In fact, everyone has different ideas. This is very 52 .Showing your own ideas allows you to share your true self with others, and people like to make friends with those who share their 53 feelings. So how should you show your ideas? Here are some 54 about it. First, listen carefully to other people. 55 you are eager（急切的）to explain your ideas, listen to others explain their ideas first.That will help keep the conversation 56 . Next, show your own ideas politely. Remember, you're not trying to start a 57 .Winning or losing is not the point. Don't try to make your friend think like you. Last but most importantly, show your friends that you 58 your friendship, even if you disagree about some things. This can 59 both of you becoming too emotional. As for Lucy, she could try this: "I know you really like rock music, but I'm afraid it's just not my cup of tea. I 60 classical music. I think if I could find a rock version版本）of a piano work, it would be fun to share it with you." ( ) 51. A. tastes B. Skills C. lessons ( ) 52. A. strange B. common C. smart ( ) 53. A. real B. lonely C. unusual ( ) 54. A. results B. examples C. suggestions ( ) 55. A. Till B. since C. although ( ) 56. A. boring B. calm C.funny ( ) 57. A. fight B. trip C. project ( ) 58. A. end B. treasure C. lose ( ) 59. A. keep B. imagine C. stop ( ) 60. A. reduce B. create C. prefer 第二节（共5小题，每小题2分，满分10分） 阅读材料，根据其内容，用方框中所给词块的正确形式填空，使其通顺、连贯。 bad habit take good care of get into what’s more turn off Most of us don't 61 our keyboards(键盘）,we eat over them,we put things on them,and we never clean them. Some people may use their keyboards without washing their hands. The keyboard is certainly dirty because you have these 62. . One study shows that a keyboard can be as dirty as a toilet seat. Can you believe that? So,it is important to clean your keyboard often. 63. your computer. This is the first thing you must do. Then you you can use a soft cloth to clean the keys. . To clean out the things under the keys,turn over (翻转）and shake it carefully. You can also use a cleaning device(设备) that blows air to move the dirt. 64. ，buy a keyboard cover. It is usually made of plastic. It stops food and other things from 65. the spaces between the keys. 61.________________________ 62. ________________________ 63. _______________________ 64.________________________ 65. ________________________ 第三节（共10小题，每小题1.5分，满分15分） 阅读下面短文，在空白处填入1个适当的单词或括号内所给单词的正确形式。 I once thought of learning calligraphy; but I was 66. (scare).The brush always shook in my hand , so I put it down. One day, when I returned home from school,I saw my cousin's beautiful calligraphy works.He wrote a poem 67. Li Bai. And I wanted to try it again. I practised 68 (hold) the brush for five minutes each morning. At last I managed 69. (get ) over my difficulties and I could write simple characters from books. At school, I joined a calligraphy club. We 70. (chat) about everything about calligraphy in the club. Once,I wrote a poem but smudged(把••擦模糊）the ink. I felt like a 71. (fail).I felt embarrassed. 72. (surprise), my teacher said, "It's nothing. Everyone makes mistakes." Hearing his words, I felt much 73. (good). So I wrote it again. The teacher praised me after seeing my work. I got a sense of 74. (achieve). Now, calligraphy fills my days 75. joy.This hobby shows me: When you love something, keep going. 66. 67. 68. 69. 70. 71. 72. 73. 74. 75. 第四部分：书面表达（满分25分） 近年来“青必年视力健康”受到社会的广泛关注，我国早在 1996 年就确立每年的6月6日为全国爱眼日，号召大家科学用眼，保护视力。请你从以下几个方面写一篇100词左右的短文,谈谈你对近视的看法： 1.造成近视的原因； 2. 近视对学习或生活的影响； 3. 如何保护视力并号召大家行动起来。 参考词汇：eyesight 视力; myopia近视; screen 屏幕 ; harmful 有害的; The eyesight of many students is getting worse and worse. Here are many reasons._____________ ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ ( 第 1 页 共 9 页 ) 学科网（北京）股份有限公司 $