江西省九江市第三中学2024-2025学年九年级上学期第二次学习效果监测英语试题

2024-2025学年上学期第二次学习效果检测九年级英语试卷 一、听力测试（20分） A）请听下面5段对话。每段对话后有一小题，从题中所给的A、B、C三个选项中选出最佳选项，并在答题卡上将该项涂黑。听完每段对话后，你都将有10秒钟的时间回答有关小题和阅读下一小题。每段对话读两遍。（每小题1分） 1. How does Mary study English? A. By working with her friends. B. By listening to tapes. C. By watching English-language videos. 2. Why did the man come to Germany? A. Because his father asked him to visit a factory. B. Because his father opened a factory there. C. Because he wanted to learn something there. 3. Where is the skirt made? A. In America. B. In Guangzhou. C. In Beijing. 4. Who does the book belong to? A. Jack. B. Mary. C. Tina. 5. What does the man mean? A. The bike is new. B. The bike is expensive. C. The bike is heavy. B）请听下面4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。听每段对话前，你将有时间阅读各个小题，每小题5秒钟；听完后，各小题给出5秒钟的作答时间。每段对话读两遍。 听对话，回答问题。 6. What is the price of a ticket for the concert? A.￥30. B. ￥40. C. ￥50. 7. How will they raise money for the tickets? A. By selling newspapers. B. By selling flowers. C. By asking their parents for help. 听对话，回答问题。 8. Where does the girl’s father learn English? A. In a college. B. In a middle school. C. In an evening school. 9. What does the girl’s father want to teach her? A. Study hard at school. B. It’s never too late to learn. C. It’s hard to learn a second language. 听对话，回答问题。 10. What color is the wallet on the ground? A. Black. B. Red. C. White. 11. What’s in the wallet? A. A name card. B. An ID card. C. A bank card. 12. Whose is the wallet? A. Li Hua’s. B. Mona’s. C. Cindy’s. 听对话，回答问题 13. Who is calling? A. Mr. Johnson. B. Mr. Brown. C. Mr. Smith. 14. When will Mr. Brown be back? A. Next month. B. Next Monday. C. Two hours later. 15. What can we get from the conversation? A. The man will leave a message. B. Mr. Smith will be free in more than two hours. C. The man has something important to tell Mr. Smith. C） 请听下面一段独白，根据独白内容完成下列句子，每个空格不超过3个单词。听独白前你将有50秒钟的时间阅读句子内容。独白读两遍。 16. Mike wants to invite Jimmy to his ________ tomorrow. 17. At ________ tomorrow morning, Mike will wait for Jimmy at the gate. 18. Mike hopes Jimmy can come, because there will be a lot of ________. 19. The park is near the restaurant. So they will ________ there. 20. Mike thinks that afternoon will be a ________ one. 二、单项填空（8分） 请阅读下面各小题，从题中所给的A、B、C、D四个选项中选出可以填入空白处的最佳选项，并在答题卷上将该项涂黑。（每小题1分） 1. — Do you know that ChatGPT has become very popular? — Sure. Its use has ________ quickly. A. spread B. appeared C. changed D. improved 2. The journey to Chongqing is a great ________ for Steve to learn about the magic place. A. chance B. introduction C. regret D. competition 3. Although more and more people prefer to read e-books now, I don’t think paper books will ________ in the future. A. produce B. disappear C. remain D. increase 4. — Mike is my best friend, but he always copies my homework. What should I do? — ________ he’s your best friend, you should tell him that copying others’ homework is wrong. A. Since B. Until C. When D. Or 5. —I tried calling you, but you didn’t answer. —Sorry, Grandma. I ________ the film The Snow Queen: The Princess at that time. A. watch B. watched C. am watching D. was watching 6. — My parents are taking me to Sanya this winter vacation. — Lucky you! This trip is ________ what you need, for you have been studying hard for days. A. mostly B. easily C. exactly D. nearly 7. The little boy is still ________ though he has a fever. It seems that he is full of energy. A. silly B. lively C. lonely D. friendly 8. — Do you know The Last Supper (《最后的晚餐》)? — Yes. It ________ by Leonardo da Vinci in the late 15th century. A. creates B. created C. is created D. was created 三、完型填空（共26分） A）（每小题1分，共15分） A daughter complained to her father about her life and how things were so hard for her. She didn’t know if she was going to make it and wanted to ____9____. She was tired of fighting and struggling(奋斗). It seemed that as one problem was solved, a new one ____10____. Her father who is a good cook, took her to the ____11____. He filled three pots with water and placed each on a high fire. Soon the pots came to a boil. In one he placed carrots, in the ____12____ he placed eggs, and in the last he placed coffee beans(咖啡豆). He let them boil, without ____13____ a word. The daughter waited impatiently, wondering ____14____ he was doing. In about twenty minutes, he ____15____ the burners and put the carrots, the eggs and the coffee into different bowls. He asked, “Darling, what do you see?” “Carrots, eggs and coffee.” She ____16____. He brought her closer and asked her to feel the carrots. She noticed that they were ____17____. He then asked her to take an egg and break ____18____. After pulling off the shell, She observed (观察) the hard-boiled egg. Finally, he asked her to taste the coffee. She enjoyed it and smiled. “What does it mean, Father?” she asked. He explained that each of them had faced the same situation, boiling water, but each reacted (反应) ____19____. The strong and hard carrots became soft and weak ____20____ being boiled. The fragile (脆弱) eggs became hard after cooking. Coffee beans were the most ____21____ of the three. They turned the ____22____ into delicious coffee. “Which are you?” he asked his daughter. When ____23____ knock on your door, how do you answer? Are you a carrot, an egg or a coffee bean? 9. A. go on B. give up C. wake up D. give away 10. A. missed B. appeared C. invented D. served 11. A. kitchen B. bedroom C. living room D. restroom 12. A. other B. first C. second D. third 13. A. speaking B. saying C. talking D. telling 14. A. why B. where C. when D. what 15. A. turned on B. turned down C. turned off D. turned up 16. A. wondered B. questioned C. admired D. replied 17. A. hard B. soft C. sweet D. bad 18. A. one B. ones C. it D. them 19. A. differently B. completely C. silently D. simply 20. A. until B. unless C. before D. after 21. A. special B. common C. healthy D. famous 22. A. egg B. water C. bowl D. carrot 23. A. shyness B. differences C. difficulties D. success B）（每小题1分，共11分） 请先阅读下面短文，掌握其大意，然后用方框中所给词的适当形式填空，并将答案填写到答题卡的相应位置。每个词限用一次。 lonely, actually, worried, doubt, we, simple, like, influence, compare, hobby, or There’s no ____24____ that technology has made a big difference to our lives. People from around the world can now contact (联系) each other almost instantly (立刻) with mobile phones and the Internet. With technology, it seems as if the world is more connected now than ever before. Even so, people are ____25____ that technology will make them feel lonely and lose touch with the people around them. So, does this mean that technology makes ____26____ lonely? I don’t think the answer is as ____27____ as yes or no. I think it is much more complicated (复杂的) than that. ____28____, humans need social interaction (互动). If we depend on technology too much to communicate with others, this can negatively (消极地) ____29____ our mental health. For me, technology is a tool. And just ____30____ any other kind of tool—like a hammer (锤子), a pencil or a ruler, for example—there is a right way and a wrong way to use it. You should use the tool in the right way ____31____ in the right place. Take social media (媒体) as an example. If you only use it ____32____ yourself to others, you might feel sad and lonely. But if you use it as a tool to connect with friends and family or to start a new community to talk about your ____33____ and interests, that loneliness will turn into love and friendship. The next time you feel ____34____ after working on computer all day, maybe you can use the technology to ask your friends out for dinner or a cup of coffee. 四、阅读理解（共46分） A）请阅读下面短文，根据短文内容从每小题所给的A、B、C、D四个选项中选出最佳选项，并在答题卡上将选项涂黑。（每小题2分） A Home Alone Safety A safety training course for children aged 10+. This course prepares your children for all the important steps of being “home alone”. Being home alone can be a dangerous and uncomfortable situation for your children without some basic (基础的) skills. Let’s work together to make our children safe! Course skills include: First aid, cooking safety, fire safety, answering doors and telephones, and appliance (电器) safety. These skills are fully covered in this course through games and role playing. Time: 8:30am.—11:00 a.m. on Saturday, June 29th, 2024. Address: 3F, City Library, Central Street. Fee (费用): 20 yuan for one child. 30 yuan for two children. How to register (报名): Website: www.westhillhurst.com. Telephone: 0976-68289639 Please register at least four days before the class date. 35. How long does the safety training course last? A. Two hours. B. Two and a half hours. C. Three hours. D. Three and a half hours. 36. When should we register online? A. June 25th. B. June 28th. C. June 29th. D. July 1st. 37. Which of the following is TRUE according to the passage? A. Children can learn to cook a dish in the course. B. An eight-year-old child can take part in the course. C. Parents must take part in the course with their children. D. Children can play games to learn the safety skills in the course. B Abigail’s mother had to go to a meeting in the afternoon and asked her to take care of her younger brother, Harry. They planned to play basketball outside, but it started to rain. Abigail looked at Harry nervously and said, “It’s raining too hard to go outside, so what would you like to do instead? Do you want to color with crayons?” “No, it’s boring,” Harry said. Abigail sighed (叹气). This was what she had worried about. “Come on, Harry. Please think of something you want to do.” Harry’s face lit up as he asked, “Can we play hide-and-seek (捉迷藏)?” Abigail stopped playing hide-and-seek years ago, but she wanted to do almost anything to keep Harry happy and out of trouble until their mother came home. She covered her eyes with her hands and started counting. When she reached fifty, she called out, “Ready or not? Here I come!” Abigail started by looking in the family room and then made her way into the kitchen. As she wondered where Harry was hiding, the perfect place came into her head. She climbed to the attic (阁楼). The floor was so dirty that she easily followed Harry’s footprints (脚印) to his hiding place behind some boxes. “Now it’s your turn to hide,” Harry shouted happily. As he jumped around, he knocked over several boxes. Abigail was about to shout at him for being so careless when she saw beautiful beads (有孔小珠) on the floor. “Cool beads!” said Harry, starting to pick them up. “They can be used to make a wonderful necklace (项链) for Mom,” agreed Abigail. When their mother came home, Abigail and Harry gave her the necklace. “What a wonderful necklace!” said their mother. “I forgot all about my grandmother’s beads. Where did you find them?” “In the attic,” replied Harry. “They were playing hide-and-seek!” 38. Why did Abigail say to Harry nervously? A. Because she knew Harry did not like staying with her. B. Because she was afraid that Harry would feel unhappy. C. Because she thought she couldn’t spend all day with Harry. D. Because she was not good at playing the games that Harry liked. 39. What was important in helping Abigail find Harry? A. Harry’s laughter. B. Some beads. C. Some boxes. D. The dirty floor. 40. Put the following events in the correct order according to the passage. a. It started to rain. b. Abigail and Harry found beads. c. Mom went out to have a meeting. d. Abigail and Harry made a necklace. e. Abigail and Harry played hide-and-seek. A. c-a-e-b-d B. d-b-a-c-e C. c-e-d-a-b D. d-b-c-e-a 41. How did Abigail’s feelings change? A. excited-worried-angry -upset B. happy-scared-worried-excited C. bored-nervous-worried-angry D. nervous-worried-angry-happy 42. What can we infer from the passage? A. The beads were playing hide-and-seek. B. Abigail would not play hide-and-seek with Harry anymore. C. The mother was surprised and happy when seeing the necklace. D. The mother would not leave Harry and Abigail at home alone anymore. C Liu Jie was a good student in Zhengzhou. She worked hard in class and did her homework, but she did badly in exams. One day her mind went blank (空白的). She couldn’t answer any of the questions. Most people feel a little nervous before a test. It’s normal, and a little stress can often help you do well. But for some people, like Liu, the anxiety is so strong that it influences their ability to think. This is called test anxiety. Test anxiety is when you feel stressed because you have to do well. It can also happen when you sing in a concert or play an important match. In very serious situations, you shake, think you are going to faint (晕倒) or your mind goes blank, like Liu. So what’s the solution? a. ________ Many students only study for exams the night before. You can reduce test anxiety. If you study more regularly (规律地), this gives you confidence and means you expect to do well. b. ________ Thoughts like “I know I’m going to fail this exam” influence your confidence in yourself. Repeat positive messages to yourself. c. ________ Getting enough sleep and exercise, and eating healthy food before an exam can help your mind work at its best. d. ________ Calm yourself with breathing exercises regularly, when you are not stressed. Do these exercises before an exam to help your body relax. Liu Jie already had some good study habits, but she didn’t get enough sleep. She also expected to do badly in exams. So she used these tips to help herself, and they worked! Now she can’t believe she ever had test anxiety. 43. How is the text organized? A. B. C. D. 44. Who may have test anxiety according to the text? ①“I think I’m going to faint!” ②“I’m going to bed early to get a good sleep.” ③“Oh, no! I can’t remember anything!” ④“Before an exam, I do breathing exercises to relax.” ⑤“I’ve worked hard for this exam. I know I can pass.” ⑥“I know I’m going to fail. I know it!” A. ①②⑤ B. ①③⑥ C. ②④⑤ D. ③④⑥ 45. Match the title with each blank. ①Positive Thinking. ②Breathe. ③Study Habits. ④Look After Yourself. A. a-②, b-①, c-④, d-③ B. a-②, b-③, c-④, d-① C. a-③, b-①, c-②, d-④ D. a-③, b-①, c-④, d-② 46. What can we learn from the text? A. Anxiety can help us get better grades in exams. B. Liu might feel happy and surprised in the end. C. To the writer, confidence is the first step to success. D. It’s common for people to faint or shake before exams. 47. The purpose of the text is to tell readers ________. A. the ways to lower stress B. the steps to be a top student C. an unforgettable story of a girl D. the reasons to cause test anxiety D What do you do when you are cold? You probably put yourself in a warm quilt and drink a cup of tea. All animals have different ways of responding (回应) to the cold. Some animals move to warmer places. Others sleep in the cold. But the wood frog does something unusual. It freezes (冷冻)! The wood frog’s ability to freeze its body is important to it. The wood frog can live in very cold places. When temperatures are low, a wood frog digs a small hole under the leaves on the forest floor. As the outdoor temperature decreases (减少), the frog freezes. In cold temperatures the frog’s heartbeat, breathing and brain activity stop. In fact, about 65 % of the frog freezes. If you pick it up, it won’t move. The frog, however, isn’t dead. The wood frog can freeze for a few days or several months at a time. It can live in cold temperatures as low as 18°F without hurting its body. When the temperature outside increases, the frog wakes up. To see how these frogs live through the cold winter, some scientists had special things on the backs of 16 wood frogs for two years. Over the two years, none of the frogs in the study died. The scientists also discovered that the frogs don’t freeze once or stay frozen. Instead, they spend a week or two freezing at night and jumping around during the day, until the temperature is below freezing all the time. Scientists are interested in the wood frog’s ability to freeze. For years they have looked for ways to freeze human organs (器官) without hurting them. They hope that by studying wood frogs they may learn better ways of protecting human organs. Whether these frogs can be used to help humans or not, they are certainly amazing. 48. What does the underlined word it refer to? A. The frog. B. The frog’s heartbeat. C. The frog’s breathing. D. The frog’s brain activity. 49. Why do scientists want to study wood frogs? A. To invent something that can be used for other frogs. B. To find ways to protect wood frogs. C. To know more about human organs. D. To protect human organs better. 50. What can we know according to the passage? A. The wood frog can only freeze for two days at a time B. The wood frog digs a hole beside a house to freeze itself. C. If a wood frog stays frozen for a long time, it may get hurt. D. The temperature around the wood frog decides how long it stays frozen. 51. Which of the following best shows the structure of the passage? A. ①/②③④/⑤ B. ①/②/③④⑤ C. ①②/③④⑤ D. ①②③/④⑤ 52. What’s the passage mainly about? A. Stories about wood frogs. B. Stories about human organs. C. How wood frogs move to warmer places. D. How the wood frog lives through cold conditions. B）（每小题2分） 请先阅读下面短文，掌握其大意，然后根据短文内容从下面方框内的七个选项中选择五个还原到文中，使短文意思通顺、结构完整。一句一空。 The compass (指南针) was invented in China about 2,000 years ago to help humans find their position and direction when traveling across the ocean. ____53____ They used stars and the moon to help them reach where they wanted to go. You can use stars to guide you through your neighborhood at night or across the ocean too. ____54____ Go outside and face your right shoulder towards where the sun rises (east) and your left shoulder towards where the sun sets (west). You will be facing north, and your back will face south. ____55____ They are close together in a diagonal line (斜线). This is “Orion’s Belt” (猎户座的腰带). Here’s one important thing to remember. If you’re in the Northern Hemisphere (北半球), turn around and look towards the southern half of the sky. ____56____ Next, draw an imaginary line through the three stars of Orions Belt, extending (延伸) it out in both directions. In one direction, the line runs into a small cluster (团) of stars known as the Pleiades, or Seven Sisters. ____57____ Now, you can use the Pleiades and Sirius to line up to other stars that guide you north, south, east and west. A. Then you’ll never be afraid to get lost. B. To start, make sure you pick a night that isn’t cloudy. C. Compass is one of the greatest inventions in the world. D. Once you know the directions, look up and try to find three stars. E. In the other direction, it runs into Sirius, the brightest star in the sky. F. If you’re in the Southern Hemisphere, look towards the northern half of the sky. G. Amazingly, before the compass was invented, people had a special way to achieve this. 五、补全对话（5分）（每空一句，每小题1分） 请阅读下面对话，根据对话内容从方框中选择恰当的句子填入空白处，使对话通顺、合理意思完整，并在答题卡上将其序号涂黑。 (Lin Feng comes into his cousin Zhang Lei’s room. Lin Feng -L. Zhang Lei=Z) L: Hey, Zhang Lei. ____58____ Z: Hi. Lin Feng. I’m watching the video series Escape from the British Museum (《逃出大英博物馆》) online. L: Oh, I’ve heard of it, but I haven’t watched it. ____59____ Z: Yeah! And it has drawn people’s attention to the overseas Chinese cultural relics (海外的中国文物). L: ____60____ Z: Over 1.6 million pieces. They are collected in museums worldwide. L: Wow! That’s a huge number. Z: And the British Museum alone has about 23,000 pieces! L: That’s surprising. ____61____ I want to know if they feel homesick as I usually do. Z: It’s an interesting thought. Those relics hold so many historical and cultural meanings. It would be great if they could be brought back to our country one day. L: You’re right. ____62____ Z: Yeah! What a wonderful video series! A. It’s great, isn’t it? B. When did you watch it? C. What do you think of the video series? D. What are you doing on your computer? E. Those cultural relics are far from home. F. That’s probably what the video series just wants to tell us. G. So how many Chinese cultural relics are out there in the world? 六、书面表达（15分） 63. 某英语报社就“青少年与父母关系”这一话题展开调查和征文活动，希望帮助缓解青少年与父母的关系。假设你是花都中学的一名学生，请你根据以下调查结果并结合实际写一篇英文短文投稿，谈一谈当代青少年的焦虑和希望，并表达你的看法。 Teenagers’ worries Teenagers’ wishes ✹too many rules ✹pay much attention to the scores ✹little communication ✹more personal space ✹better understanding ✹... 注意事项： （1）适当发挥，并谈谈自己的想法； （2）词数80左右（文章开头已给出，不计入词数）； （3）不得透露学校、姓名等任何个人信息，否则不予评分。 As we grow older day by day, we find there are more problems between our parents and us. ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 2024-2025学年上学期第二次学习效果检测九年级英语试卷 一、听力测试（20分） A）请听下面5段对话。每段对话后有一小题，从题中所给的A、B、C三个选项中选出最佳选项，并在答题卡上将该项涂黑。听完每段对话后，你都将有10秒钟的时间回答有关小题和阅读下一小题。每段对话读两遍。（每小题1分） 1. How does Mary study English? A. By working with her friends. B. By listening to tapes. C. By watching English-language videos. 2. Why did the man come to Germany? A. Because his father asked him to visit a factory. B. Because his father opened a factory there. C. Because he wanted to learn something there. 3. Where is the skirt made? A. In America. B. In Guangzhou. C. In Beijing. 4. Who does the book belong to? A. Jack. B. Mary. C. Tina. 5. What does the man mean? A. The bike is new. B. The bike is expensive. C. The bike is heavy. B）请听下面4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。听每段对话前，你将有时间阅读各个小题，每小题5秒钟；听完后，各小题给出5秒钟的作答时间。每段对话读两遍。 听对话，回答问题。 6. What is the price of a ticket for the concert? A.￥30. B. ￥40. C. ￥50. 7. How will they raise money for the tickets? A. By selling newspapers. B. By selling flowers. C. By asking their parents for help. 听对话，回答问题。 8. Where does the girl’s father learn English? A. In a college. B. In a middle school. C. In an evening school. 9. What does the girl’s father want to teach her? A. Study hard at school. B. It’s never too late to learn. C. It’s hard to learn a second language. 听对话，回答问题。 10. What color is the wallet on the ground? A. Black. B. Red. C. White. 11. What’s in the wallet? A. A name card. B. An ID card. C. A bank card. 12. Whose is the wallet? A. Li Hua’s. B. Mona’s. C. Cindy’s. 听对话，回答问题 13. Who is calling? A. Mr. Johnson. B. Mr. Brown. C. Mr. Smith. 14. When will Mr. Brown be back? A. Next month. B. Next Monday. C. Two hours later. 15. What can we get from the conversation? A. The man will leave a message. B. Mr. Smith will be free in more than two hours. C. The man has something important to tell Mr. Smith. C） 请听下面一段独白，根据独白内容完成下列句子，每个空格不超过3个单词。听独白前你将有50秒钟的时间阅读句子内容。独白读两遍。 16. Mike wants to invite Jimmy to his ________ tomorrow. 17. At ________ tomorrow morning, Mike will wait for Jimmy at the gate. 18. Mike hopes Jimmy can come, because there will be a lot of ________. 19. The park is near the restaurant. So they will ________ there. 20. Mike thinks that afternoon will be a ________ one. 二、单项填空（8分） 请阅读下面各小题，从题中所给的A、B、C、D四个选项中选出可以填入空白处的最佳选项，并在答题卷上将该项涂黑。（每小题1分） 【1题答案】 【答案】A 【2题答案】 【答案】A 【3题答案】 【答案】B 【4题答案】 【答案】A 【5题答案】 【答案】D 【6题答案】 【答案】C 【7题答案】 【答案】B 【8题答案】 【答案】D 三、完型填空（共26分） A）（每小题1分，共15分） 【9~23题答案】 【答案】9. B 10. B 11. A 12. C 13. B 14. D 15. C 16. D 17. B 18. C 19. A 20. D 21. A 22. B 23. C B）（每小题1分，共11分） 【24~34题答案】 【答案】24. doubt 25. worried 26. us 27. simple 28. Actually 29. influence 30. like 31. or 32. to compare 33. hobbies 34. lonely 四、阅读理解（共46分） A）请阅读下面短文，根据短文内容从每小题所给的A、B、C、D四个选项中选出最佳选项，并在答题卡上将选项涂黑。（每小题2分） A 【35~37题答案】 【答案】35. B 36. A 37. D B 【38~42题答案】 【答案】38. B 39. D 40. A 41. D 42. C C 【43~47题答案】 【答案】43. C 44. B 45. D 46. B 47. A D 【48~52题答案】 【答案】48. A 49. D 50. D 51. A 52. D B）（每小题2分） 【53~57题答案】 【答案】53. G 54. B 55. D 56. F 57. E 五、补全对话（5分）（每空一句，每小题1分） 【58~62题答案】 【答案】58. D 59. A 60. G 61. E 62. F 六、书面表达（15分） 【63题答案】 【答案】例文： As we grow older day by day, we find there are more problems between our parents and us. The first problem is that there are too many rules at home. Our parents don’t allow us to go out with our friends at night and they don’t allow us to choose our own clothes. What’s more, they pay much attention to the scores. If we have bad grades, they will get mad. Besides, we have little communication and I think parents don’t understand us. Most of our teenagers hope that we can have more personal space so that we can do what we like. We also hope that there will be better understanding between us and our parents. What’s important, we are desired to have the chance to make decisions by ourselves. As far as I am concerned, both we and our parents should work together to have a good relationship. It’s no good requiring everything to go our way. Remember to be a little more patient when meeting problems. Try spend more time talking with each other, and we all can learn how to get on well with each other. Part of growing up is to learn to live with trouble and try to deal with it. I believe we can overcome all the difficulties and live a happy life. 第1页/共1页 学科网（北京）股份有限公司 $