Unit 3 Keep Fit（单元自测·武汉卷专用）英语新教材人教版七年级下册

2025-2026学年七年级下册英语单元自测（武汉卷专用） Unit 3·培优卷（参考答案） 1-5：ACBAB 6-10：CCBCA 11． B 12．C 13．C 14．D 15．A 16． A 17．B 18．C 19．D 20．B 21．A 22．C 23．D 24．D 25．A 26．B 27．D 28．C 29．A 30．B 31．C 32．B 33．A 34．D 35．A　 36．B 37．B 38．C 39．C 40．C 41．teenagers 42．seldom 43． belongs to 44．progress 45．Instead 46．advice 47．exercising 48．than 49．to 50．overweight 51．cities 52．need 53．dangerous 54．choices 55．to teach 例文 How Sports Keep Me Fit I love doing sports because they make me energetic and happy. My favorite sport is basketball. I play it with friends every weekend, which helps me build teamwork skills.     Sports keep me fit in many ways. Running strengthens my heart while jumping improves my flexibility. Regular exercise also helps me sleep better at night. What’s more, sports teach me perseverance. Even when I’m tired, I learn to push forward. This attitude helps me in my studies too. Sports are not just about fitness—they shape my character!   原创精品资源学科网独家享有版权，侵权必究！1 学科网（北京）股份有限公司1 / 2 学科网（北京）股份有限公司 $ 2025-2026学年七年级下册英语单元自测（武汉卷专用） Unit 3·培优卷 学校:___________班级：___________姓名：___________分数：___________ （时间：100分钟，满分：95分） 一、选择填空（共10小题，每小题1分，满分10分） 从题中所给的A、B、C、D四个选项中，选出一个最佳答案。将代表该答案的字母在答题卡上相应的位置涂黑。 1．—I’m a little nervous. We will have a football match this afternoon. —Don’t worry. Your team has trained so hard. I’m sure you’ll __________ this match. A．win B．beat C．lose D．wins 【答案】A 【详解】句意：——我有点紧张。今天下午我们将有一场足球比赛。——别担心。你们队训练得如此努力。我相信你们会赢得这场比赛的。 考查动词辨析及语境理解。win赢，通常用于赢得比赛、奖项等；beat打败，通常用于打败对手、团队等；lose输；wins是win的第三人称单数形式。根据上文“Your team has trained so hard. I’m sure...”可知，此处表达的是相信对方会赢得比赛，且空格前有助动词will，后接动词原形，所以应该用win。故选A。 2．Boys and girls, work hard! I believe you will ________ in the exam. A．success B．successful C．succeed D．successfully 【答案】C 【详解】句意：同学们，努力学习！我相信你们会在考试中取得成功。 考查动词。success成功，名词；successful成功的，形容词；succeed成功，动词；successfully成功地，副词。will是助动词，后跟动词原形succeed。故选C。 3．Chinese scientists have made great ________ in space technology recently. A．information B．progress C．knowledge D．message 【答案】B 【详解】句意：中国科学家最近在空间技术方面取得了巨大的进步。 考查名词辨析。 information信息；progress进步；knowledge知识；message消息。根据句意可知，此处考查“make progress in sth.”意为“在某方面取得进步”。故选B。 4．My parents always encourage me ________ myself. A．to be B．being C．be D．is 【答案】A 【详解】句意：我的父母总是鼓励我做自己。 考查非谓语动词。根据“My parents always encourage me...myself.”可知，encourage sb. to do sth.“鼓励某人做某事”，此处应用动词不定式作宾语补足语。故选A。 5．The three children ________ the same study group, and they often help each other. A．look after B．belong to C．think about D．wait for 【答案】B 【详解】句意：这三个孩子属于同一个学习小组，他们经常互相帮助。 考查动词短语。look after照顾；belong to属于；think about思考；wait for等待。根据“and they often help each other”可知，他们属于同一个学习小组。故选B。 6．—The camera in your hand is nice. Is it ________? —Yes, but I’ll give it to my friend Lily as ________ birthday present. A．you; her B．your; hers C．yours; her D．you; hers 【答案】C 【详解】句意：——你手里的相机真不错。是你的吗？——是的，但我会把它送给我的朋友莉莉作为她的生日礼物。 考查物主代词。you你；your你的；yours你的（东西）；her她的；hers她的（东西）。 根据“Is it...”可知，第一空后无名词，用名词性物主代词yours，指代“你的相机”；第二空后有名词“birthday present”，用形容词性物主代词her，修饰名词。故选C。 7．I will bring ________ sandwiches to the picnic. A．a little B．little C．a few D．few 【答案】C 【详解】句意：我会带一些三明治去野餐。 考查不定代词辨析。a little一点，修饰不可数名词；little几乎没有，修饰不可数名词；a few一些，一点，修饰可数名词复数；few几乎没有，修饰可数名词复数。“sandwiches”是可数名词复数，且此处表肯定“带一些”，故“a few”符合语境。故选C。 8．My mother asks me ________ my room every day. A．clean B．to clean C．cleaning D．cleans 【答案】B 【详解】句意：我妈妈让我每天打扫房间。 考查非谓语动词。ask sb. to do sth.“要求某人做某事”，空处填动词不定式的to clean。故选B。 9．The students enjoy ________ basketball after class. A．play B．plays C．playing D．to play 【答案】C 【详解】句意：学生们喜欢课后打篮球。 考查非谓语动词。play玩，打，动词原形；plays三单形式；playing动名词或现在分词；to play动词不定式。enjoy doing sth.表示“喜欢做某事”，是固定用法，所以此处用动名词作宾语。故选C。 10．—Would you like to play volleyball with us? —________. A．I’d love to B．I don’t like it C．No, I wouldn’t D．That’s all right 【答案】A 【详解】句意：——你想和我们一起去打排球吗？——我想的。 考查情景交际。I’d love to我很乐意；I don’t like it我不喜欢它；No, I wouldn’t我不会的；That’s all right没关系。“Would you like to do sth”的肯定回答常用“I’d love to”，故选A。 二、完形填空（共15小题，每小题1分，满分15分） 阅读下面短文，从短文后各题所给的A、B、C、D四个选项中，选出可以填入空白处的最佳选项。 In 2025, China starts a “Sports and Health Year” activity. The activity tries to 11 everyone, especially teenagers, to pay attention to their 12 and to do more sports. A(n) 13 diet is important for a healthy weight. It means eating different kinds of food 14 less fat, sugar, and salt. For example, if you don’t want to order fast food, you can cook at home 15 . Vegetables like carrots are full of vitamins (维生素), so they 16 go into our daily meals. Doing sports is also very important. There are many kinds of traditional sports to choose. For example, running can help 17 our heart. Playing basketball is a great way to build team 18 . Besides, some new sports, like playing Frisbee (飞盘), 19 with an exercise app, going rock climbing, are also easy to begin. Young people do exercise both to keep 20 and to make more friends. Sports can 21 help teenagers study better. When they exercise, their brains get more oxygen (氧气). This can help them 22 fast in class. To make this activity more 23 , many cities and towns build more sports parks. People can go there to do outdoor 24 easily. Schools let students have more classes to learn about healthy eating and offer more PE classes to make sure students get 25 exercise. It’s time to take part in the “Sports and Health Year” activity! 11．A．send B．encourage C．prepare D．choose 12．A．height B．age C．weight D．mind 13．A．traditional B．fast C．balanced D．interesting 14．A．for B．about C．on D．with 15．A．instead B．well C．soon D．already 16．A．should B．may C．can’t D．mustn’t 17．A．change B．improve C．warm D．practice 18．A．hope B．life C．spirit D．progress 19．A．getting up B．hanging out C．picking up D．working out 20．A．busy B．fit C．lucky D．friendly 21．A．also B．only C．just D．ever 22．A．run B．speak C．think D．walk 23．A．well-used B．relaxing C．international D．popular 24．A．shower B．sit-up C．care D．practice 25．A．enough B．poor C．funny D．hard 【答案】 11．B 12．C 13．C 14．D 15．A 16．A 17．B 18．C 19．D 20．B 21．A 22．C 23．D 24．D 25．A 【导语】本文是一篇说明文，主要介绍了2025年中国“体育健康年”活动。 11．句意：这项活动试图鼓励每个人，尤其是青少年，注意自己的体重，多做运动。 send发送；encourage鼓励；prepare准备；choose选择。根据“The activity tries to ... everyone, especially teenagers, to ... do more sports.”可知，这项活动鼓励人们多运动。故选B。 12．句意：这项活动试图鼓励每个人，尤其是青少年，注意自己的体重，多做运动。 height身高；age年龄；weight体重；mind头脑。根据后文“for a healthy weight”可知活动主题与体重有关。故选C。 13．句意：均衡的饮食对健康的体重很重要。 traditional传统的；fast快的；balanced均衡的；interesting有趣的。根据“It means eating different kinds of food”可知，吃各种食物意味着要均衡饮食。故选C。 14．句意：这意味着吃不同种类的食物，少脂肪，少糖，少盐。 for为了；about关于；on在……上；with和。根据“food ... less fat, sugar, and salt”可知，此处指“有着很少的脂肪、糖和盐的食物”。故选D。 15．句意：例如，如果你不想点快餐，相反你可以在家做饭。 instead相反；well很好地；soon很快；already已经。根据“if you don’t want to order fast food, you can cook at home ...”可知，“点快餐”和“在家做饭”是两种相反的情况。故选A。 16．句意：像胡萝卜这样的蔬菜富含维生素，所以它们应该进入我们的日常饮食中。 should应该；may可能；can’t不能；mustn’t禁止。根据“Vegetables like carrots are full of vitamins (维生素), so they ... go into our daily meals.”可知，因为蔬菜富含维生素，所以应该加入日常饮食中。故选A。 17．句意：例如，跑步可以帮助改善我们的心脏。 change改变；improve提高；warm温暖；practice练习。根据“running can help ... our heart.”可知，跑步可以改善心脏。故选B。 18．句意：打篮球是培养团队精神的好方法。 hope希望；life生活；spirit精神；progress进步。根据“Playing basketball is a great way to build team ...”可知，打篮球可以培养团队精神。故选C。 19．句意：此外，一些新的运动也很容易上手，比如玩飞盘、用健身软件健身、攀岩。 getting up起床；hanging out闲逛；picking up捡起；working out锻炼。根据“some new sports”可知，此处指的是“运动锻炼”。故选D。 20．句意：年轻人锻炼身体既是为了保持健康，也是为了结交更多的朋友。 busy忙碌的；fit健康的；lucky幸运的；friendly友好的。根据“Young people do exercise both to keep ... and to make more friends.”可知，保持健康和交朋友都是年轻人锻炼的目的。故选B。 21．句意：运动还可以帮助青少年更好地学习。 also也；only仅仅；just刚刚；ever曾经。根据“Young people do exercise both to keep ... and to make more friends. Sports can ... help teenagers study better.”可知，运动还有其他的好处。故选A。 22．句意：这可以帮助他们在课堂上快速思考。 run跑步；speak说话；think思考；walk走路。根据“in class”可知，课堂上应是思考。故选C。 23．句意：为了使这项活动更受欢迎，许多城镇建立了更多的体育公园。 well-used常用的；relaxing放松的；international国际的；popular受欢迎的。根据“To make this activity more ..., many cities and towns build more sports parks.”可知，有了更多的体育公园，活动就更受人们欢迎。故选D。 24．句意：人们可以很容易地去那里做户外练习。 shower淋浴；sit-up仰卧起坐；care关心；practice训练。根据“People can go there to do outdoor ... easily. ”可知，人们在户外是为了练习。故选D。 25．句意：学校让学生上更多的课来学习健康饮食，并提供更多的体育课来确保学生得到足够的锻炼。 enough足够的；poor贫穷的；funny有趣的；hard困难的。根据“offer more PE classes to make sure students get ... exercise.”可知，体育课的目的是让学生有足够的锻炼。故选A。 三、阅读理解（共15小题，每小题2分，满分30分） 阅读下面三篇材料，从每题所给的A、B、C、D四个选项中，选出最佳选项。 A Every morning, I wake up at 6: 00 a.m. and put on my running shoes. My dad waits for me at the door, and we jog to the nearby park together. At first, I hate waking up early, and my legs feel heavy. But Dad always says, “Consistency (坚持) is the key!” We run around the lake three times. Sometimes I want to stop, but Dad encourages me, “Focus on your breathing (呼吸)!” Slowly, my stamina improves. Last week, our school held a 1, 000-meter race. I stay calm, keep my pace, and finish fifth—much better than my old last-place result. Now, I enjoy our morning runs. The fresh air clears my mind, and I feel stronger in PE class. My classmates ask, “How did you get faster?” I smile and answer, “Just keep practicing!” 26．What time does the writer wake up every morning? A．5: 30 a.m. B．6: 00 a.m. C．6: 30 a.m. D．7: 00 a.m. 27．Where do the writer and Dad run? A．On a school track. B．In a gym. C．By the river. D．In a park. 28．What does Dad say to encourage the writer? A．Run faster than others! B．Buy new shoes! C．Focus on your breathing! D．Eat more vegetables! 29．How did the writer perform in the recent race? A．Finished fifth. B．Finished last. C．Gave up halfway. D．Won first place. 30．What is the main message of the story? A．Racing is stressful. B．Regular practice leads to progress. C．Sleeping early is important. D．Parents should push children harder. 【答案】26．B 27．D 28．C 29．A 30．B 【导语】本文讲述了一位学生在父亲的陪伴和鼓励下坚持晨跑，通过持续锻炼提升体能，最终在学校比赛中取得进步的故事，强调了坚持练习的重要性。 26．细节理解题。根据“Every morning, I wake up at 6:00 a.m.”可知作者每天早晨6点起床。故选B。 27．细节理解题。根据第一段“…we jog to the nearby park together”和第二段“We run around the lake three times”可知作者和父亲在公园跑步。故选D。 28．细节理解题。根据第二段“Dad encourages me, ‘Focus on your breathing!’”可知父亲的鼓励话语是“注意呼吸”。故选C。 29．细节理解题。根据第三段“…finish fifth—much better than my old last-place result”可知作者在最近的比赛中获得了第五名。故选A。 30．主旨大意题。通过全文可知，本文讲述了一位学生在父亲的陪伴和鼓励下坚持晨跑，通过持续锻炼提升体能，最终在学校比赛中取得进步的故事，强调了坚持练习的重要性。故选B。 B Nowadays, many students don’t get enough exercise. There are some reasons for this. First, electronic devices like smartphones and computers take up most of their free time. Second, some students simply find sports uninteresting or too tiring. Or maybe some of the students don’t know how to do sports. However, exercise is very important for both our body and mind. It makes our bodies stronger, helps us focus better on our studies, and keeps us in a good mood. To help students exercise more, Wuhan city tries a new idea. Starting from the 2025 spring term, ★. This longer break is up to 40 minutes and it will give students more chances to take part in different kinds of exercise activities. Teachers will hold fun games and exercises during this break to encourage everyone to move their bodies. There are many easy ways to make exercise more enjoyable. Students can try different sports to find one they like, such as basketball, badminton or rope jumping. Exercising with friends also makes it more fun. Remember, good exercise doesn’t have to be difficult—even walking or riding a bike to school instead of going in your dad’s car can make a big difference to our health. 31．What is NOT the reason why some students don’t exercise enough? A．Spending too much time on phones or computers. B．Finding sports not interesting. C．Not having enough money for sports. D．Not knowing how to do sports. 32．Which sentence can be put in “ ★ ” in paragraph 2? A．students will have less homework B．all middle schools will have a longer morning break C．new sports will come into schools D．students can use phones in class 33．What does the second paragraph mainly talk about? A．Wuhan tries to help students exercise more. B．Students have problems on exercise. C．Students can try different kinds of sports. D．In Wuhan, students can use phones or computers well. 34．According to the passage, what can students do to make exercise more fun? A．Do difficult sports. B．Watch sports on TV instead. C．Exercise alone in their rooms. D．Try different sports and exercise with friends. 35．The writer writes this passage to ________. A．encourage students to do exercise B．introduce new sports C．introduce the longer break in Wuhan’s schools D．show the importance of sports 【答案】31．C 32．B 33．A 34．D 35．A 【导语】本文是一篇说明文，主要讨论了学生缺乏锻炼的原因、锻炼的重要性以及武汉为促进学生锻炼采取的新措施，并提出了让运动更有趣的建议。 31．细节理解题。根据“First, electronic devices like smartphones and computers take up most of their free time. Second, some students simply find sports uninteresting or too tiring. Or maybe some of the students don’t know how to do sports.”可知，未提及“没有足够资金”。故选C。 32．推理判断题。根据下文“This longer break is up to 40 minutes”可知，空处应填入与延长课间休息相关的句子，B项符合。故选B。 33．主旨大意题。根据“To help students exercise more, Wuhan city tries a new idea.…This longer break is up to 40 minutes…Teachers will hold fun games and exercises during this break to encourage everyone to move their bodies.”可知，第二段主要介绍武汉通过延长课间休息并组织趣味活动帮助学生增加锻炼。故选A。 34．细节理解题。根据“Students can try different sports to find one they like… Exercising with friends also makes it more fun.”可知，尝试不同运动并与朋友一起锻炼使运动更有趣。故选D。 35．主旨大意题。通读全文可知，全文通过分析问题、介绍措施和建议，旨在鼓励学生参与锻炼。故选A。 C Getting enough sleep is essential for keeping fit. Sleep helps your body and mind recover from the day’s activities. It also helps you stay focused and energetic during the day. Most people need about 7 to 9 hours of sleep every night. Teenagers, however, need a bit more sleep. They should aim for 8 to 10 hours of sleep each night. This is because their bodies are still growing and developing. It is important to have a regular sleep schedule. Going to bed and waking up at the same time every day can help improve the quality of your sleep. Avoiding screens, such as phones and computers, before bedtime can also help you fall asleep more easily. Sleep is not just about the amount of time you spend in bed. The quality of your sleep is also important. Make sure your sleeping environment is quiet, dark, and cool. This can help you get a better night’s sleep. 36．What is the main idea of the passage? A．How to exercise. B．The importance of sleep. C．Types of food. D．Healthy eating habits. 37．How much sleep do most people need every night? A．5 to 7 hours. B．7 to 9 hours. C．9 to 11 hours. D．11 to 13 hours. 38．How much sleep do teenagers need each night? A．6 to 8 hours. B．7 to 9 hours. C．8 to 10 hours. D．9 to 11 hours. 39．What can help improve the quality of your sleep? A．Watching TV before bedtime. B．Using your phone before bedtime. C．Going to bed and waking up at the same time every day. D．Eating a big meal before bedtime. 40．What is important for a good sleeping environment? A．A bright room. B．A noisy room. C．A quiet, dark, and cool room. D．A warm room. 【答案】36．B 37．B 38．C 39．C 40．C 【导语】本文主要讲述了睡眠的重要性、所需时长及改善睡眠质量的建议。 36．主旨大意题。文章各段均围绕睡眠的重要性、不同人群的睡眠需求及提升睡眠质量的方法展开，核心主题为睡眠的重要性。故选B。 37．细节理解题。根据“Most people need about 7 to 9 hours of sleep every night.”可知，人类每天晚上需要7至9个小时的睡眠。故选B； 38．细节理解题。根据“Teenagers…should aim for 8 to 10 hours”可知，青少年每晚需要8到10个小时的睡眠时间。故选C。 39．细节理解题。根据第三段提到“Going to bed and waking up at the same time every day”可知，每天同一时间睡觉和起床早睡觉可以改善睡眠质量。故选C。 40．细节理解题。根据“Make sure your sleeping environment is quiet, dark, and cool.”可知，安静、黑暗、凉爽的睡眠环境有助于睡眠。故选C。 四、选词填空（共5小题，每小题2分，满分10分） 仔细阅读下面短文，用下面方框中所给单词或短语的填空，使短文在结构、句义和逻辑上正确。(提示：方框中有二个单词或短语是多余的。) always instead     teenagers     belongs to     seldom      progress cares for Now many 41 often feel lack (缺少) of energy. Sometimes they feel sleepy in class and can’t listen to their teacher carefully. One reason is that they 42 do sports. Studies show that a healthy body (身体) 43 those who do regular (规律的) exercise in their everyday life. By doing exercise, we can make great 44 in our health, both the body and the brain (大脑). Now, it’s time to change. Don’t spend your time on the chair, sofa or bed. Get out of them and do some exercise 45 . 【答案】41．teenagers 42．seldom 43． belongs to 44．progress 45．instead 【导语】本文主要讲述青少年因缺乏运动导致疲劳的问题，强调规律运动对身心健康的重要性。 41．句意：现在许多青少年经常感到精力不足。根据“many...often feel lack (缺少) of energy”以及备选词可知，应填名词teenagers“青少年”，作主语，表示许多青少年经常感到精力不足。故填teenagers。 42．句意：一个原因是他们很少做运动。根据“One reason is that they...do sports.”以及备选词可知，应填副词seldom“很少”，作状语，修饰动词do，表示他们很少做运动。故填seldom。 43．句意：研究表明，健康的身体属于那些在日常生活中经常锻炼的人。根据“a healthy body (身体)...those who do regular (规律的) exercise in their everyday life”以及备选词可知，应填动词短语belongs to“属于”，表示健康的身体属于那些在日常生活中经常锻炼的人。故填 belongs to。 44．句意：通过锻炼，我们可以在身体和大脑的健康方面取得巨大进步。根据“By doing exercise, we can make great...in our health, both the body and the brain (大脑).”和常识以及备选词可知，应填不可数名词progress“进步”，表示在健康方面取得巨大进步。make great progress“取得巨大进步”。故填progress。 45．句意：离开它们，做些运动来代替。根据前一句“Don’t spend your time on the chair, sofa or bed.”以及备选词可知，应填副词instead“代替、相反”，表示要做些运动，而不是坐在椅子、沙发或床上。故填instead。 五、综合填空（共10小题，每小题1分，满分10分） 阅读下面短文，根据上下文或括号内单词等提示，在空白处填入适当的单词或括号内单词的适当形式。 China Calls for Weight Control China has made a plan to help its people with weight control. The plan was introduced at this year’s “Two Sessions (两会)”. Under the plan, “weight management clinics (体重管理门诊)” will be set up in hospitals across the country. Doctors at these clinics will give medical 46 (advise) on weight management. Obesity (肥胖症) has greatly increased in China over the past 40 years. In general, people are eating more and 47 (exercise) less. By 2021, more than 400 million adults were too heavy. That’s more 48 double the number in the U.S.or India. According 49 a study published in The Lancet (《柳叶刀》) medical journal, this number will rise to 630 million by 2050. Being 50 (weight) can harm health. It increases the risk of many diseases, such as high blood pressure and heart disease. Big 51 (city) like Beijing and Shanghai have already set up weight control clinics. They use safe ways to help people lose weight. These include healthy diets and traditional Chinese medicine. People in rural (农村) areas 52 (need) help, too. A 2023 study found that obesity rates (比率) have been on the rise since 2005 in rural areas. Many ads for weight-loss solutions can be found on Chinese social media. Some even sell “magic” pills. Experts say they can be 53 (danger). As a safer solution, China is now making medicines to help control the desire (欲望) for food. The government is calling for the support of hotels, schools and businesses. Hotels are asked to, for example, put a scale (体重秤) in every room to remind guests to make healthy 54 (choose). Schools are encouraged 55 (teach) kids about healthy eating. In some places, junk food isn’t allowed to be sold at or near schools. 【答案】 46．advice 47．exercising 48．than 49．to 50．overweight 51．cities 52．need 53．dangerous 54．choices 55．to teach 【导语】本文是一篇说明文。文章主要讲述了中国提出的体重控制计划，包括设立体重管理门诊、肥胖问题的现状及其对健康的影响，以及政府和社会各界的应对措施。 46．句意：这些诊所的医生将提供关于体重管理的医疗建议。根据“give medical”可知，此处填名词，advise“建议”的名词形式为“advice”。故填advice。 47．句意：总的来说，人们吃得更多，锻炼得更少。此处需要与“eating”并列，故用现在分词形式“exercising”。故填exercising。 48．句意：这个数字是美国或印度的两倍多。根据“more...double the number”可知，此处需要用比较级“than”来表示数量上的比较。故填than。 49．句意：根据发表在《柳叶刀》医学杂志上的一项研究，这个数字到2050年将上升到6.3亿。考查according to“根据”。故填to。 50．句意：超重会危害健康。根据“Being”可知，此处需要用形容词“overweight”来描述状态。故填overweight。 51．句意：像北京和上海这样的大城市已经设立了体重控制诊所。根据“have”可知，此处需要用复数形式“cities”来表示多个城市。故填cities。 52．句意：农村地区的人们也需要帮助。时态为一般现在时，主语“People”为复数，所以填动词原形。故填need。 53．句意：专家说它们可能是危险的。根据“can be”可知，此处需要用形容词“dangerous”来描述状态。故填dangerous。 54．句意：例如，酒店被要求在每间房间放置一个体重秤，以提醒客人做出健康的选择。根据“make healthy”可知，此处需要用复数形式“choices”来表示泛指。故填choices。 55．句意：学校被鼓励教授孩子们健康饮食的知识。考查be encouraged to do sth“被鼓励做某事”。故填to teach。 六、书面表达（共1大题，满分20分） 随着人们对健康关注度的提升，运动逐渐成为生活中不可或缺的一部分。学校现开展“运动与健康”主题征文活动，邀请你结合自身经历，围绕以下要点写一篇文章： 1. Do you like doing sports? 2. What’s your favorite sport? 3. How can sports help you keep fit? 4. Something more about it. 注意：文中不得透露个人真实姓名和学校；词数80词左右；标题已给出，不计入总词数。 How Sports Keep Me Fit _____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 【答案】例文 How Sports Keep Me Fit I love doing sports because they make me energetic and happy. My favorite sport is basketball. I play it with friends every weekend, which helps me build teamwork skills.     Sports keep me fit in many ways. Running strengthens my heart while jumping improves my flexibility. Regular exercise also helps me sleep better at night. What’s more, sports teach me perseverance. Even when I’m tired, I learn to push forward. This attitude helps me in my studies too. Sports are not just about fitness—they shape my character!   【详解】[总体分析] ① 题材：本文是一篇材料作文； ② 时态：时态主要为“一般现在时”； ③ 提示：根据提示写作。注意行文连贯，逻辑清晰，无拼写和语法错误。 [写作步骤] 第一步，点明自己喜欢运动并介绍自己最喜欢的运动； 第二步，介绍运动给自己带来的好处； 第三步，写出总结。 [亮点词汇] ①build teamwork skills培养团队合作技能 ②in many ways在许多方面 ③strengthens my heart强化我的心 ④improves my flexibility提高我的灵活性 ⑤What’s more另外 [高分句型] ①I love doing sports because they make me energetic and happy. (because引导的原因状语从句) ②I play it with friends every weekend, which helps me build teamwork skills. (which引导的非限制性定语从句) 原创精品资源学科网独家享有版权，侵权必究！1 学科网（北京）股份有限公司1 / 14 学科网（北京）股份有限公司 $ ………………○………………外………………○………………装………………○………………订………………○………………线………………○……………… ………………○………………内………………○………………装………………○………………订………………○………………线………………○……………… 此卷只装订不密封 ………………○………………内………………○………………装………………○………………订………………○………………线………………○……………… ………………○………………外………………○………………装………………○………………订………………○………………线………………○……………… … 学校：______________姓名：_____________班级：_______________考号：______________________ 2025-2026学年七年级下册英语单元自测（武汉卷专用） Unit 3·培优卷 学校:___________班级：___________姓名：___________分数：___________ （时间：100分钟，满分：95分） 一、选择填空（共10小题，每小题1分，满分10分） 从题中所给的A、B、C、D四个选项中，选出一个最佳答案。将代表该答案的字母在答题卡上相应的位置涂黑。 1．—I’m a little nervous. We will have a football match this afternoon. —Don’t worry. Your team has trained so hard. I’m sure you’ll __________ this match. A．win B．beat C．lose D．wins 2．Boys and girls, work hard! I believe you will ________ in the exam. A．success B．successful C．succeed D．successfully 3．Chinese scientists have made great ________ in space technology recently. A．information B．progress C．knowledge D．message 4．My parents always encourage me ________ myself. A．to be B．being C．be D．is 5．The three children ________ the same study group, and they often help each other. A．look after B．belong to C．think about D．wait for 6．—The camera in your hand is nice. Is it ________? —Yes, but I’ll give it to my friend Lily as ________ birthday present. A．you; her B．your; hers C．yours; her D．you; hers 7．I will bring ________ sandwiches to the picnic. A．a little B．little C．a few D．few 8．My mother asks me ________ my room every day. A．clean B．to clean C．cleaning D．cleans 9．The students enjoy ________ basketball after class. A．play B．plays C．playing D．to play 10．—Would you like to play volleyball with us? —________. A．I’d love to B．I don’t like it C．No, I wouldn’t D．That’s all right 二、完形填空（共15小题，每小题1分，满分15分） 阅读下面短文，从短文后各题所给的A、B、C、D四个选项中，选出可以填入空白处的最佳选项。 In 2025, China starts a “Sports and Health Year” activity. The activity tries to 11 everyone, especially teenagers, to pay attention to their 12 and to do more sports. A(n) 13 diet is important for a healthy weight. It means eating different kinds of food 14 less fat, sugar, and salt. For example, if you don’t want to order fast food, you can cook at home 15 . Vegetables like carrots are full of vitamins (维生素), so they 16 go into our daily meals. Doing sports is also very important. There are many kinds of traditional sports to choose. For example, running can help 17 our heart. Playing basketball is a great way to build team 18 . Besides, some new sports, like playing Frisbee (飞盘), 19 with an exercise app, going rock climbing, are also easy to begin. Young people do exercise both to keep 20 and to make more friends. Sports can 21 help teenagers study better. When they exercise, their brains get more oxygen (氧气). This can help them 22 fast in class. To make this activity more 23 , many cities and towns build more sports parks. People can go there to do outdoor 24 easily. Schools let students have more classes to learn about healthy eating and offer more PE classes to make sure students get 25 exercise. It’s time to take part in the “Sports and Health Year” activity! 11．A．send B．encourage C．prepare D．choose 12．A．height B．age C．weight D．mind 13．A．traditional B．fast C．balanced D．interesting 14．A．for B．about C．on D．with 15．A．instead B．well C．soon D．already 16．A．should B．may C．can’t D．mustn’t 17．A．change B．improve C．warm D．practice 18．A．hope B．life C．spirit D．progress 19．A．getting up B．hanging out C．picking up D．working out 20．A．busy B．fit C．lucky D．friendly 21．A．also B．only C．just D．ever 22．A．run B．speak C．think D．walk 23．A．well-used B．relaxing C．international D．popular 24．A．shower B．sit-up C．care D．practice 25．A．enough B．poor C．funny D．hard 三、阅读理解（共15小题，每小题2分，满分30分） 阅读下面三篇材料，从每题所给的A、B、C、D四个选项中，选出最佳选项。 A Every morning, I wake up at 6: 00 a.m. and put on my running shoes. My dad waits for me at the door, and we jog to the nearby park together. At first, I hate waking up early, and my legs feel heavy. But Dad always says, “Consistency (坚持) is the key!” We run around the lake three times. Sometimes I want to stop, but Dad encourages me, “Focus on your breathing (呼吸)!” Slowly, my stamina improves. Last week, our school held a 1, 000-meter race. I stay calm, keep my pace, and finish fifth—much better than my old last-place result. Now, I enjoy our morning runs. The fresh air clears my mind, and I feel stronger in PE class. My classmates ask, “How did you get faster?” I smile and answer, “Just keep practicing!” 26．What time does the writer wake up every morning? A．5: 30 a.m. B．6: 00 a.m. C．6: 30 a.m. D．7: 00 a.m. 27．Where do the writer and Dad run? A．On a school track. B．In a gym. C．By the river. D．In a park. 28．What does Dad say to encourage the writer? A．Run faster than others! B．Buy new shoes! C．Focus on your breathing! D．Eat more vegetables! 29．How did the writer perform in the recent race? A．Finished fifth. B．Finished last. C．Gave up halfway. D．Won first place. 30．What is the main message of the story? A．Racing is stressful. B．Regular practice leads to progress. C．Sleeping early is important. D．Parents should push children harder. B Nowadays, many students don’t get enough exercise. There are some reasons for this. First, electronic devices like smartphones and computers take up most of their free time. Second, some students simply find sports uninteresting or too tiring. Or maybe some of the students don’t know how to do sports. However, exercise is very important for both our body and mind. It makes our bodies stronger, helps us focus better on our studies, and keeps us in a good mood. To help students exercise more, Wuhan city tries a new idea. Starting from the 2025 spring term, ★. This longer break is up to 40 minutes and it will give students more chances to take part in different kinds of exercise activities. Teachers will hold fun games and exercises during this break to encourage everyone to move their bodies. There are many easy ways to make exercise more enjoyable. Students can try different sports to find one they like, such as basketball, badminton or rope jumping. Exercising with friends also makes it more fun. Remember, good exercise doesn’t have to be difficult—even walking or riding a bike to school instead of going in your dad’s car can make a big difference to our health. 31．What is NOT the reason why some students don’t exercise enough? A．Spending too much time on phones or computers. B．Finding sports not interesting. C．Not having enough money for sports. D．Not knowing how to do sports. 32．Which sentence can be put in “ ★ ” in paragraph 2? A．students will have less homework B．all middle schools will have a longer morning break C．new sports will come into schools D．students can use phones in class 33．What does the second paragraph mainly talk about? A．Wuhan tries to help students exercise more. B．Students have problems on exercise. C．Students can try different kinds of sports. D．In Wuhan, students can use phones or computers well. 34．According to the passage, what can students do to make exercise more fun? A．Do difficult sports. B．Watch sports on TV instead. C．Exercise alone in their rooms. D．Try different sports and exercise with friends. 35．The writer writes this passage to ________. A．encourage students to do exercise B．introduce new sports C．introduce the longer break in Wuhan’s schools D．show the importance of sports C Getting enough sleep is essential for keeping fit. Sleep helps your body and mind recover from the day’s activities. It also helps you stay focused and energetic during the day. Most people need about 7 to 9 hours of sleep every night. Teenagers, however, need a bit more sleep. They should aim for 8 to 10 hours of sleep each night. This is because their bodies are still growing and developing. It is important to have a regular sleep schedule. Going to bed and waking up at the same time every day can help improve the quality of your sleep. Avoiding screens, such as phones and computers, before bedtime can also help you fall asleep more easily. Sleep is not just about the amount of time you spend in bed. The quality of your sleep is also important. Make sure your sleeping environment is quiet, dark, and cool. This can help you get a better night’s sleep. 36．What is the main idea of the passage? A．How to exercise. B．The importance of sleep. C．Types of food. D．Healthy eating habits. 37．How much sleep do most people need every night? A．5 to 7 hours. B．7 to 9 hours. C．9 to 11 hours. D．11 to 13 hours. 38．How much sleep do teenagers need each night? A．6 to 8 hours. B．7 to 9 hours. C．8 to 10 hours. D．9 to 11 hours. 39．What can help improve the quality of your sleep? A．Watching TV before bedtime. B．Using your phone before bedtime. C．Going to bed and waking up at the same time every day. D．Eating a big meal before bedtime. 40．What is important for a good sleeping environment? A．A bright room. B．A noisy room. C．A quiet, dark, and cool room. D．A warm room. 四、选词填空（共5小题，每小题2分，满分10分） 仔细阅读下面短文，用下面方框中所给单词或短语的填空，使短文在结构、句义和逻辑上正确。(提示：方框中有二个单词或短语是多余的。) always instead     teenagers     belongs to     seldom      progress cares for Now many 41 often feel lack (缺少) of energy. Sometimes they feel sleepy in class and can’t listen to their teacher carefully. One reason is that they 42 do sports. Studies show that a healthy body (身体) 43 those who do regular (规律的) exercise in their everyday life. By doing exercise, we can make great 44 in our health, both the body and the brain (大脑). Now, it’s time to change. Don’t spend your time on the chair, sofa or bed. Get out of them and do some exercise 45 . 五、综合填空（共10小题，每小题1分，满分10分） 阅读下面短文，根据上下文或括号内单词等提示，在空白处填入适当的单词或括号内单词的适当形式。 China Calls for Weight Control China has made a plan to help its people with weight control. The plan was introduced at this year’s “Two Sessions (两会)”. Under the plan, “weight management clinics (体重管理门诊)” will be set up in hospitals across the country. Doctors at these clinics will give medical 46 (advise) on weight management. Obesity (肥胖症) has greatly increased in China over the past 40 years. In general, people are eating more and 47 (exercise) less. By 2021, more than 400 million adults were too heavy. That’s more 48 double the number in the U.S.or India. According 49 a study published in The Lancet (《柳叶刀》) medical journal, this number will rise to 630 million by 2050. Being 50 (weight) can harm health. It increases the risk of many diseases, such as high blood pressure and heart disease. Big 51 (city) like Beijing and Shanghai have already set up weight control clinics. They use safe ways to help people lose weight. These include healthy diets and traditional Chinese medicine. People in rural (农村) areas 52 (need) help, too. A 2023 study found that obesity rates (比率) have been on the rise since 2005 in rural areas. Many ads for weight-loss solutions can be found on Chinese social media. Some even sell “magic” pills. Experts say they can be 53 (danger). As a safer solution, China is now making medicines to help control the desire (欲望) for food. The government is calling for the support of hotels, schools and businesses. Hotels are asked to, for example, put a scale (体重秤) in every room to remind guests to make healthy 54 (choose). Schools are encouraged 55 (teach) kids about healthy eating. In some places, junk food isn’t allowed to be sold at or near schools. 六、书面表达（共1大题，满分20分） 随着人们对健康关注度的提升，运动逐渐成为生活中不可或缺的一部分。学校现开展“运动与健康”主题征文活动，邀请你结合自身经历，围绕以下要点写一篇文章： 1. Do you like doing sports? 2. What’s your favorite sport? 3. How can sports help you keep fit? 4. Something more about it. 注意：文中不得透露个人真实姓名和学校；词数80词左右；标题已给出，不计入总词数。 How Sports Keep Me Fit _____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 试题 第3页（共8页） 试题 第4页（共8页） 试题 第1页（共8页） 试题 第2页（共8页） 学科网（北京）股份有限公司 $ 2025-2026学年七年级下册英语单元自测（武汉卷专用） Unit 3·培优卷 学校:___________班级：___________姓名：___________分数：___________ （时间：100分钟，满分：95分） 一、选择填空（共10小题，每小题1分，满分10分） 从题中所给的A、B、C、D四个选项中，选出一个最佳答案。将代表该答案的字母在答题卡上相应的位置涂黑。 1．—I’m a little nervous. We will have a football match this afternoon. —Don’t worry. Your team has trained so hard. I’m sure you’ll __________ this match. A．win B．beat C．lose D．wins 2．Boys and girls, work hard! I believe you will ________ in the exam. A．success B．successful C．succeed D．successfully 3．Chinese scientists have made great ________ in space technology recently. A．information B．progress C．knowledge D．message 4．My parents always encourage me ________ myself. A．to be B．being C．be D．is 5．The three children ________ the same study group, and they often help each other. A．look after B．belong to C．think about D．wait for 6．—The camera in your hand is nice. Is it ________? —Yes, but I’ll give it to my friend Lily as ________ birthday present. A．you; her B．your; hers C．yours; her D．you; hers 7．I will bring ________ sandwiches to the picnic. A．a little B．little C．a few D．few 8．My mother asks me ________ my room every day. A．clean B．to clean C．cleaning D．cleans 9．The students enjoy ________ basketball after class. A．play B．plays C．playing D．to play 10．—Would you like to play volleyball with us? —________. A．I’d love to B．I don’t like it C．No, I wouldn’t D．That’s all right 二、完形填空（共15小题，每小题1分，满分15分） 阅读下面短文，从短文后各题所给的A、B、C、D四个选项中，选出可以填入空白处的最佳选项。 In 2025, China starts a “Sports and Health Year” activity. The activity tries to 11 everyone, especially teenagers, to pay attention to their 12 and to do more sports. A(n) 13 diet is important for a healthy weight. It means eating different kinds of food 14 less fat, sugar, and salt. For example, if you don’t want to order fast food, you can cook at home 15 . Vegetables like carrots are full of vitamins (维生素), so they 16 go into our daily meals. Doing sports is also very important. There are many kinds of traditional sports to choose. For example, running can help 17 our heart. Playing basketball is a great way to build team 18 . Besides, some new sports, like playing Frisbee (飞盘), 19 with an exercise app, going rock climbing, are also easy to begin. Young people do exercise both to keep 20 and to make more friends. Sports can 21 help teenagers study better. When they exercise, their brains get more oxygen (氧气). This can help them 22 fast in class. To make this activity more 23 , many cities and towns build more sports parks. People can go there to do outdoor 24 easily. Schools let students have more classes to learn about healthy eating and offer more PE classes to make sure students get 25 exercise. It’s time to take part in the “Sports and Health Year” activity! 11．A．send B．encourage C．prepare D．choose 12．A．height B．age C．weight D．mind 13．A．traditional B．fast C．balanced D．interesting 14．A．for B．about C．on D．with 15．A．instead B．well C．soon D．already 16．A．should B．may C．can’t D．mustn’t 17．A．change B．improve C．warm D．practice 18．A．hope B．life C．spirit D．progress 19．A．getting up B．hanging out C．picking up D．working out 20．A．busy B．fit C．lucky D．friendly 21．A．also B．only C．just D．ever 22．A．run B．speak C．think D．walk 23．A．well-used B．relaxing C．international D．popular 24．A．shower B．sit-up C．care D．practice 25．A．enough B．poor C．funny D．hard 三、阅读理解（共15小题，每小题2分，满分30分） 阅读下面三篇材料，从每题所给的A、B、C、D四个选项中，选出最佳选项。 A Every morning, I wake up at 6: 00 a.m. and put on my running shoes. My dad waits for me at the door, and we jog to the nearby park together. At first, I hate waking up early, and my legs feel heavy. But Dad always says, “Consistency (坚持) is the key!” We run around the lake three times. Sometimes I want to stop, but Dad encourages me, “Focus on your breathing (呼吸)!” Slowly, my stamina improves. Last week, our school held a 1, 000-meter race. I stay calm, keep my pace, and finish fifth—much better than my old last-place result. Now, I enjoy our morning runs. The fresh air clears my mind, and I feel stronger in PE class. My classmates ask, “How did you get faster?” I smile and answer, “Just keep practicing!” 26．What time does the writer wake up every morning? A．5: 30 a.m. B．6: 00 a.m. C．6: 30 a.m. D．7: 00 a.m. 27．Where do the writer and Dad run? A．On a school track. B．In a gym. C．By the river. D．In a park. 28．What does Dad say to encourage the writer? A．Run faster than others! B．Buy new shoes! C．Focus on your breathing! D．Eat more vegetables! 29．How did the writer perform in the recent race? A．Finished fifth. B．Finished last. C．Gave up halfway. D．Won first place. 30．What is the main message of the story? A．Racing is stressful. B．Regular practice leads to progress. C．Sleeping early is important. D．Parents should push children harder. B Nowadays, many students don’t get enough exercise. There are some reasons for this. First, electronic devices like smartphones and computers take up most of their free time. Second, some students simply find sports uninteresting or too tiring. Or maybe some of the students don’t know how to do sports. However, exercise is very important for both our body and mind. It makes our bodies stronger, helps us focus better on our studies, and keeps us in a good mood. To help students exercise more, Wuhan city tries a new idea. Starting from the 2025 spring term, ★. This longer break is up to 40 minutes and it will give students more chances to take part in different kinds of exercise activities. Teachers will hold fun games and exercises during this break to encourage everyone to move their bodies. There are many easy ways to make exercise more enjoyable. Students can try different sports to find one they like, such as basketball, badminton or rope jumping. Exercising with friends also makes it more fun. Remember, good exercise doesn’t have to be difficult—even walking or riding a bike to school instead of going in your dad’s car can make a big difference to our health. 31．What is NOT the reason why some students don’t exercise enough? A．Spending too much time on phones or computers. B．Finding sports not interesting. C．Not having enough money for sports. D．Not knowing how to do sports. 32．Which sentence can be put in “ ★ ” in paragraph 2? A．students will have less homework B．all middle schools will have a longer morning break C．new sports will come into schools D．students can use phones in class 33．What does the second paragraph mainly talk about? A．Wuhan tries to help students exercise more. B．Students have problems on exercise. C．Students can try different kinds of sports. D．In Wuhan, students can use phones or computers well. 34．According to the passage, what can students do to make exercise more fun? A．Do difficult sports. B．Watch sports on TV instead. C．Exercise alone in their rooms. D．Try different sports and exercise with friends. 35．The writer writes this passage to ________. A．encourage students to do exercise B．introduce new sports C．introduce the longer break in Wuhan’s schools D．show the importance of sports C Getting enough sleep is essential for keeping fit. Sleep helps your body and mind recover from the day’s activities. It also helps you stay focused and energetic during the day. Most people need about 7 to 9 hours of sleep every night. Teenagers, however, need a bit more sleep. They should aim for 8 to 10 hours of sleep each night. This is because their bodies are still growing and developing. It is important to have a regular sleep schedule. Going to bed and waking up at the same time every day can help improve the quality of your sleep. Avoiding screens, such as phones and computers, before bedtime can also help you fall asleep more easily. Sleep is not just about the amount of time you spend in bed. The quality of your sleep is also important. Make sure your sleeping environment is quiet, dark, and cool. This can help you get a better night’s sleep. 36．What is the main idea of the passage? A．How to exercise. B．The importance of sleep. C．Types of food. D．Healthy eating habits. 37．How much sleep do most people need every night? A．5 to 7 hours. B．7 to 9 hours. C．9 to 11 hours. D．11 to 13 hours. 38．How much sleep do teenagers need each night? A．6 to 8 hours. B．7 to 9 hours. C．8 to 10 hours. D．9 to 11 hours. 39．What can help improve the quality of your sleep? A．Watching TV before bedtime. B．Using your phone before bedtime. C．Going to bed and waking up at the same time every day. D．Eating a big meal before bedtime. 40．What is important for a good sleeping environment? A．A bright room. B．A noisy room. C．A quiet, dark, and cool room. D．A warm room. 四、选词填空（共5小题，每小题2分，满分10分） 仔细阅读下面短文，用下面方框中所给单词或短语的填空，使短文在结构、句义和逻辑上正确。(提示：方框中有二个单词或短语是多余的。) always instead     teenagers     belongs to     seldom      progress cares for Now many 41 often feel lack (缺少) of energy. Sometimes they feel sleepy in class and can’t listen to their teacher carefully. One reason is that they 42 do sports. Studies show that a healthy body (身体) 43 those who do regular (规律的) exercise in their everyday life. By doing exercise, we can make great 44 in our health, both the body and the brain (大脑). Now, it’s time to change. Don’t spend your time on the chair, sofa or bed. Get out of them and do some exercise 45 . 五、综合填空（共10小题，每小题1分，满分10分） 阅读下面短文，根据上下文或括号内单词等提示，在空白处填入适当的单词或括号内单词的适当形式。 China Calls for Weight Control China has made a plan to help its people with weight control. The plan was introduced at this year’s “Two Sessions (两会)”. Under the plan, “weight management clinics (体重管理门诊)” will be set up in hospitals across the country. Doctors at these clinics will give medical 46 (advise) on weight management. Obesity (肥胖症) has greatly increased in China over the past 40 years. In general, people are eating more and 47 (exercise) less. By 2021, more than 400 million adults were too heavy. That’s more 48 double the number in the U.S.or India. According 49 a study published in The Lancet (《柳叶刀》) medical journal, this number will rise to 630 million by 2050. Being 50 (weight) can harm health. It increases the risk of many diseases, such as high blood pressure and heart disease. Big 51 (city) like Beijing and Shanghai have already set up weight control clinics. They use safe ways to help people lose weight. These include healthy diets and traditional Chinese medicine. People in rural (农村) areas 52 (need) help, too. A 2023 study found that obesity rates (比率) have been on the rise since 2005 in rural areas. Many ads for weight-loss solutions can be found on Chinese social media. Some even sell “magic” pills. Experts say they can be 53 (danger). As a safer solution, China is now making medicines to help control the desire (欲望) for food. The government is calling for the support of hotels, schools and businesses. Hotels are asked to, for example, put a scale (体重秤) in every room to remind guests to make healthy 54 (choose). Schools are encouraged 55 (teach) kids about healthy eating. In some places, junk food isn’t allowed to be sold at or near schools. 六、书面表达（共1大题，满分20分） 随着人们对健康关注度的提升，运动逐渐成为生活中不可或缺的一部分。学校现开展“运动与健康”主题征文活动，邀请你结合自身经历，围绕以下要点写一篇文章： 1. Do you like doing sports? 2. What’s your favorite sport? 3. How can sports help you keep fit? 4. Something more about it. 注意：文中不得透露个人真实姓名和学校；词数80词左右；标题已给出，不计入总词数。 How Sports Keep Me Fit _____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 原创精品资源学科网独家享有版权，侵权必究！1 1 / 7 学科网（北京）股份有限公司 学科网（北京）股份有限公司 $