第27卷 综合训练卷（拔高）5-【2027版】广东省（“3+证书”考试）《英语45分钟训练卷》（原卷版+解析版）

**基本信息** 以公共文化、生态观察等主题为载体，整合补全对话、阅读、语法等模块，分层提升综合语言运用能力，渗透文化意识与思维品质培养。 **综合设计** |模块|题量/典例|题型特征|知识逻辑| |----|-----------|----------|----------| |补全对话|5题|日常交际情境应答|聚焦功能意念词，关联生活场景| |词汇|5题|单词语义匹配|紧扣主题语境，强化核心词汇理解| |阅读理解|5题|公共文化主题文本|以“物品承载历史”为主线，训练信息提取与推理| |短文阅读五选五|5题|在线学习策略补全|逻辑衔接词与段落主旨结合，提升语篇构建能力| |语法填空|10题|生态观察叙事填空|动词时态、形容词比较级等语法点在语境中应用| |完成句子|3题|汉译英表达|综合词汇与句型，落实语言输出| |应用写作|1题|活动分享|整合观察内容与收获，体现语言实际应用|

编写说明：本卷依据最新版《中等职业学校英语课程标准》和历年真题编写。本系列定位为45分钟训练卷，用于课堂限时训练、周测检测和阶段复习。本卷为拔高综合训练卷，题材选自公共文化、科技学习、生态观察与品德成长等主题，提升综合推理与表达能力。 【2027版】广东省（“3+证书”考试）《英语45分钟训练卷》 第27卷 综合训练卷（拔高）5 考试时间：45分钟 满分：100分 班级______姓名______学号______成绩______ 补全对话（共5小题；每小题3分，满分15分） 根据对话内容，从A、B、C、D四个选项中选出最佳选项。 1. —The science show about clean energy was moved to Room 302. —______. Let us go there before it starts. A. It is on the third floor B. Never mind C. By bike D. I agree 【答案】A 【详解】考查说明地点。句意：——清洁能源科学展示移到了302室。——它在三楼。我们开始前过去吧。 A选项It is on the third floor意为“它在三楼”；B选项Never mind意为“没关系”；C选项By bike意为“骑自行车”；D选项I agree意为“我同意”。结合题干上下句可知，空前提到302室，空后说前往，应补充楼层位置，A项符合语境。故选A。 2. —I cannot understand this map of the old town. —______. Maybe the blue line means the river. A. Good luck B. Let me try C. You are welcome D. That sounds great 【答案】B 【详解】考查主动帮助。句意：——我看不懂这张古镇地图。——让我试试。也许蓝线表示河流。 A选项Good luck意为“祝你好运”；B选项Let me try意为“让我试试”；C选项You are welcome意为“不用谢”；D选项That sounds great意为“听起来很好”。结合题干上下句可知，空后给出判断，说明说话人愿意尝试帮忙，B项符合语境。故选B。 3. —Thank you for keeping a seat for me. —______. The talk has not begun yet. A. I am not sure B. At the gate C. You are welcome D. Please be careful 【答案】C 【详解】考查感谢与应答。句意：——谢谢你给我留座位。——不用谢。讲座还没有开始。 A选项I am not sure意为“我不确定”；B选项At the gate意为“在门口”；C选项You are welcome意为“不用谢”；D选项Please be careful意为“请小心”。结合题干上下句可知，对方表示感谢，答语应回应感谢，C项符合语境。故选C。 4. —Would you like to join our evening walk by the river? —______. The air is fresh after the rain. A. It tastes fresh B. That sounds great C. I am sorry to hear that D. No problem 【答案】B 【详解】考查邀请与回应。句意：——你愿意参加我们的河边夜间散步吗？——听起来很好。雨后空气很清新。 A选项It tastes fresh意为“它尝起来新鲜”；B选项That sounds great意为“听起来很好”；C选项I am sorry to hear that意为“听到这个我很难过”；D选项No problem意为“没问题”。结合题干上下句可知，对方发出邀请，空后补充积极理由，应表示愿意，B项符合语境。故选B。 5. —The glass bottle is broken near the path. —______. I will tell the park worker. A. Enjoy yourself B. What a nice idea C. Good luck D. Please be careful 【答案】D 【详解】考查提醒安全。句意：——小路旁的玻璃瓶碎了。——请小心。我会告诉公园工作人员。 A选项Enjoy yourself意为“玩得开心”；B选项What a nice idea意为“多好的主意”；C选项Good luck意为“祝你好运”；D选项Please be careful意为“请小心”。结合题干上下句可知，空前说明安全隐患，答语应先提醒小心，D项符合语境。故选D。 词汇（共5小题；每小题3分，满分15分） 阅读下列句子，从A、B、C、D中选出句中画线的单词或词组的意义。 6. The museum guide described the old boat in clear words. A. 描述 B. 隐藏 C. 出售 D. 忘记 【答案】A 【详解】考查词汇理解。句意：博物馆讲解员用清楚的话描述了那艘旧船。 画线词“described”在句中意为“描述”，A项符合语境。故选A。 7. A healthy breakfast can give students enough energy. A. 价格 B. 精力 C. 噪音 D. 风险 【答案】B 【详解】考查词汇理解。句意：健康早餐能给学生足够的精力。 画线词“energy”在句中意为“精力”，B项符合语境。故选B。 8. The volunteer made a polite answer to the visitor. A. 粗鲁的 B. 孤单的 C. 礼貌的 D. 沉重的 【答案】C 【详解】考查词汇理解。句意：志愿者礼貌地回答了游客。 画线词“polite”在句中意为“礼貌的”，C项符合语境。故选C。 9. The group compared their notes before making a decision. A. 表面 B. 记忆 C. 灯光 D. 决定 【答案】D 【详解】考查词汇理解。句意：小组在做决定前比较了他们的笔记。 画线词“decision”在句中意为“决定”，D项符合语境。故选D。 10. This method is useful when you read a long passage. A. 云朵 B. 桥梁 C. 花园 D. 方法 【答案】D 【详解】考查词汇理解。句意：读长文章时，这种方法很有用。 画线词“method”在句中意为“方法”，D项符合语境。故选D。 阅读理解第一节（共5小题；每小题4分，满分20分） 阅读下列短文，从每题所给的A、B、C、D四个选项中，选出最佳选项。 A public museum in Guangzhou started a “one object, one story” project for teenagers. Instead of asking visitors to remember many dates, the project invited them to choose one object and follow its story through pictures, short texts and quiet questions. The museum believed that one well-understood object could open the door to a much larger history. Sixteen-year-old Wen Jia chose a small blue bowl. At first, it did not look special to her. It was smaller than her rice bowl at home and had only a few lines on its surface（表面）. Then she read that the bowl had traveled through river markets over one hundred years ago. It might have held tea, medicine or soup for different families. Suddenly, the bowl seemed to carry many hands and many mornings. The project guide asked each student to write three questions: Who used it? How did it move? Why was it kept? Wen Jia could not answer all of them, but the questions changed her way of looking. She stopped seeing the bowl as a cold thing behind glass. She began to imagine boats, shops and people who needed simple objects in daily life. At the end, students shared their findings in small groups. Some chose a fan, a letter or a wooden box. Their stories were different, but many reached the same idea: history is not only about famous names. It also lives in ordinary（普通的） things used by ordinary people. After returning home, Wen Jia looked at her grandmother’s old cup more carefully. She asked when it was bought and why it was never thrown away. Her grandmother smiled and began a story about moving to the city. Wen Jia then understood the museum project better. An object becomes meaningful when someone is willing to ask and listen. 11. What did the museum project ask teenagers to do? A. Remember as many dates as possible B. Choose one object and follow its story C. Draw famous people from history D. Buy old objects from river markets 12. Why did the blue bowl become interesting to Wen Jia? A. It was larger than her bowl at home B. It had many bright pictures on it C. It had traveled through river markets long ago D. It was made by her grandmother 13. What did the guide’s questions help Wen Jia do? A. Look at the bowl in a new way B. Find all answers on the first page C. Open the glass case by herself D. Forget the bowl’s daily use 14. What common idea did many students get? A. History only belongs to famous people B. Letters are more useful than bowls C. Museums should keep fewer objects D. Ordinary things can carry history 15. What happened after Wen Jia returned home? A. She asked about her grandmother’s old cup B. She threw away her family’s old things C. She bought a new blue bowl online D. She stopped listening to museum stories 【答案】11. B 12. C 13. A 14. D 15. A 【导语】本文介绍广州一座公共博物馆的“一物一故事”项目，学生通过追问普通物件的经历理解历史与生活的联系。 【详解】 11. 考查细节理解。根据第一段“the project invited them to choose one object and follow its story（这个项目邀请他们选择一件物品并追随它的故事）”可知，项目要求青少年围绕一件物品了解故事。A意为“记住尽可能多的日期”；B意为“选择一件物品并追随它的故事”；C意为“画历史名人”；D意为“从河市购买旧物”。故选B。 12. 考查细节理解。根据第二段“the bowl had traveled through river markets over one hundred years ago（这个碗一百多年前曾经过河边集市）”可知，碗因其流转经历变得有趣。A意为“比家里的碗大”；B意为“有很多明亮图画”；C意为“很久以前经过河市”；D意为“由祖母制作”。故选C。 13. 考查推理判断。根据第三段“the questions changed her way of looking（这些问题改变了她观看的方式）”可知，问题帮助她用新眼光看碗。A选项意为“以新方式看这个碗”；B意为“在第一页找到所有答案”；C意为“自己打开玻璃柜”；D意为“忘记碗的日常用途”。故选A。 14. 考查细节理解。根据第四段“history is not only about famous names. It also lives in ordinary things（历史不只关于名人，也存在于普通事物中）”可知，普通物件也承载历史。A意为“历史只属于名人”；B意为“信比碗更有用”；C意为“博物馆应少保存物品”；D意为“普通物件能承载历史”。故选D。 15. 考查细节理解。根据最后一段“Wen Jia looked at her grandmother’s old cup more carefully. She asked when it was bought（文佳更仔细地看祖母的旧杯子，并询问它何时买的）”可知，她询问祖母的旧杯子。A意为“她询问祖母的旧杯子”；B意为“扔掉家中旧物”；C意为“网上买新蓝碗”；D意为“停止听博物馆故事”。故选A。 短文阅读五选五（共5小题；每小题2分，满分10分） 阅读下面短文，从短文后的A、B、C、D、E五个选项中选出可以填入空白处的最佳选项。 Online learning can be useful when we know how to manage it. A lesson on a screen is not easier just because we sit at home. ____16____ A clear plan helps us learn better and keeps the day from becoming messy. Before the lesson, prepare the desk. Put away snacks, games and things that are not needed. Keep a notebook and a pen nearby. ____17____ When everything is ready, you will not waste time looking for small things during class. During the lesson, listen actively. Do not only stare at the screen. Write down key words, mark questions and answer when the teacher asks. ____18____ These small actions make your brain work with the lesson instead of simply watching it pass. After the lesson, review quickly. Five minutes can be enough to read your notes and circle what you still do not understand. ____19____ If you wait until the next week, many details may become unclear. Finally, protect your eyes and body. Stand up between lessons, look far away, stretch your shoulders and drink water. ____20____ Good online learning is not about sitting longer. It is about learning with attention, order and care for yourself. A. This habit keeps problems fresh in your mind. B. We still need rules and attention. C. Your body also needs a short rest. D. This helps you enter the lesson quickly. E. Active notes can turn listening into learning. 【答案】16. B 17. D 18. E 19. A 20. C 【导语】本文介绍提高线上学习效果的几个方法，包括课前准备、课堂主动参与、课后及时复习和保护身体。 【详解】 16. 根据空前“A lesson on a screen is not easier...（屏幕上的课程并不因为在家就更容易）”和空后“A clear plan helps...（清晰计划有帮助）”可知，线上学习仍需要规则和注意力。B项意为“我们仍然需要规则和注意力”。故选B。 17. 根据空前“Keep a notebook and a pen nearby.（把笔记本和笔放在旁边。）”和空后“不浪费时间找东西”可知，准备好物品能快速进入课堂。D项意为“这帮助你快速进入课程”。故选D。 18. 根据空前列举写关键词、标问题、回答老师问题，空后“These small actions（这些小行动）”可知，主动笔记能把听转化为学习。E项意为“主动笔记能把听讲变成学习”。故选E。 19. 根据空前“review quickly（快速复习）”和空后“If you wait until the next week...（如果等到下周……）”可知，及时复习能让问题保持清晰。A项意为“这个习惯让问题在脑中保持新鲜”。故选A。 20. 根据空前“Stand up... look far away and drink water（站起来、看远处、喝水）”可知，身体也需要短暂休息。C项意为“你的身体也需要短暂休息”。故选C。 语法填空（共10小题；每小题2分，满分20分） 阅读下面短文，在空白处填入一个适当的词，或填入括号中所给单词的正确形式。 Last Sunday, my family visited a small wetland park near our home. We arrived early because my father wanted ____21____ (watch) birds before the paths became crowded. The morning air was cool, and several white birds were standing ____22____ the water. At the gate, a notice asked visitors not to feed the birds. My little brother did not understand it at first. My mother explained that human food might be ____23____ (danger) for wild birds, even if it looked kind. Then he put the bread back into his bag. We walked along the wooden path and spoke ____24____ (quiet). A guide told us that wetlands help clean water and give animals ____25____ safe home. She also showed us how leaves and mud（泥） could hold water after heavy rain. Near noon, we sat under a tree and drew what we saw. I drew a bird with long legs, but my brother drew three small fish. We laughed because his fish looked ____26____ (big) than the birds. Before leaving, we picked up two plastic bottles ____27____ someone had left near the grass. The visit was short, ____28____ it changed my idea of parks. Now I know a park can protect life and teach people ____29____ (care) for nature. I hope more visitors will follow the rules ____30____ keep the wetland clean. 【答案】21. to watch 22. in 23. dangerous 24. quietly 25. a 26. bigger 27. that 28. but 29. to care 30. and 【导语】本文讲述一家人参观湿地公园，在观鸟、听讲解和捡垃圾的过程中理解湿地保护的重要性。 【详解】 21. 考查非谓语动词。句意：我们到得很早，因为爸爸想在人多之前观鸟。want to do sth.意为“想要做某事”，故填to watch。 22. 考查介词。句意：几只白鸟正站在水里。in the water意为“在水中”，符合句意。 23. 考查形容词。句意：妈妈解释说，人类食物对野鸟可能是危险的。be动词后用形容词作表语，故填dangerous。 24. 考查副词。句意：我们沿木栈道走，并轻声说话。修饰动词spoke用副词quietly。 25. 考查冠词。句意：湿地帮助净化水，并给动物一个安全的家。home为可数名词单数，safe发音以辅音音素开头，故填a。 26. 考查形容词比较级。句意：我们笑了，因为他的鱼看起来比鸟还大。than提示使用比较级，故填bigger。 27. 考查定语从句关系词。句意：离开前，我们捡起别人留在草地旁的两个塑料瓶。先行词为bottles，关系词在从句中作宾语，可填that。 28. 考查连词。句意：这次参观很短，但它改变了我对公园的看法。前后为转折关系，故填but。 29. 考查非谓语动词。句意：现在我知道它能保护生命，并教人们关爱自然。teach sb. to do sth.意为“教某人做某事”，故填to care。 30. 考查连词。句意：我希望更多游客遵守规则并保持湿地清洁。follow和keep为并列动作，故填and。 完成句子（共3小题；每小题2分，满分6分） 根据括号内汉语提示完成句子。 31. Reading one object carefully can help us _____________________（更好地理解历史）. 【答案】understand history better 【详解】考查动词短语。句意：仔细阅读一件物品能帮助我们更好地理解历史。help sb. do sth.后接动词原形，better修饰understand。 32. Please_____________________（把手机放进）your schoolbag before the online class begins. 【答案】put the phone into 【详解】考查祈使句和动词短语。句意：线上课开始前，请把手机放进书包里。put...into...意为“把……放进……”。 33. The wetland park teaches visitors _____________________（不要给野鸟喂食）. 【答案】not to feed wild birds 【详解】考查非谓语动词否定式。句意：湿地公园教游客不要给野鸟喂食。teach sb. not to do sth.符合结构，故填not to feed wild birds。 应用写作（共1小题；满分14分） 根据下面提示完成应用写作。 34. 【写作内容】假如你是李华，你参加了学校组织的湿地公园观察活动。请给同学写一则英文分享，内容包括：活动时间与地点、你看到的内容、你的收获。 【写作要求】正文约40个英文单词，文中不可出现你自己的真实姓名、学校等信息。 【评分标准】内容完整，语言规范，语篇连贯。 __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 【答案】例文： Last Sunday morning, our class visited a wetland park near the river. We watched birds, read the signs and learned why we should not feed wild animals. I also picked up two bottles near the grass. The activity taught me that protecting nature begins with small actions and careful eyes. 【导语】本题要求写一则活动分享，介绍湿地公园观察活动的时间地点、所见内容和个人收获，时态以一般过去时为主。 【详解】例文先交代时间地点，再说明观察鸟类、阅读标识、捡拾垃圾等活动，最后点明保护自然从小事做起，内容完整且有逻辑。 【点睛】文章语言朴素自然，能把活动经历与环保意识联系起来，符合应用写作表达要求。 【高分句型】The activity taught me that protecting nature begins with small actions and careful eyes. 该句使用宾语从句和动名词短语作主语，表达收获较完整。 原创精品资源学科网独家享有版权，侵权必究！ 学科网（北京）股份有限公司 $ 编写说明：本卷依据最新版《中等职业学校英语课程标准》和历年真题编写。本系列定位为45分钟训练卷，用于课堂限时训练、周测检测和阶段复习。本卷为拔高综合训练卷，题材选自公共文化、科技学习、生态观察与品德成长等主题，提升综合推理与表达能力。 【2027版】广东省（“3+证书”考试）《英语45分钟训练卷》 第27卷 综合训练卷（拔高）5 考试时间：45分钟 满分：100分 班级______姓名______学号______成绩______ 补全对话（共5小题；每小题3分，满分15分） 根据对话内容，从A、B、C、D四个选项中选出最佳选项。 1. —The science show about clean energy was moved to Room 302. —______. Let us go there before it starts. A. It is on the third floor B. Never mind C. By bike D. I agree 2. —I cannot understand this map of the old town. —______. Maybe the blue line means the river. A. Good luck B. Let me try C. You are welcome D. That sounds great 3. —Thank you for keeping a seat for me. —______. The talk has not begun yet. A. I am not sure B. At the gate C. You are welcome D. Please be careful 4. —Would you like to join our evening walk by the river? —______. The air is fresh after the rain. A. It tastes fresh B. That sounds great C. I am sorry to hear that D. No problem 5. —The glass bottle is broken near the path. —______. I will tell the park worker. A. Enjoy yourself B. What a nice idea C. Good luck D. Please be careful 词汇（共5小题；每小题3分，满分15分） 阅读下列句子，从A、B、C、D中选出句中画线的单词或词组的意义。 6. The museum guide described the old boat in clear words. A. 描述 B. 隐藏 C. 出售 D. 忘记 7. A healthy breakfast can give students enough energy. A. 价格 B. 精力 C. 噪音 D. 风险 8. The volunteer made a polite answer to the visitor. A. 粗鲁的 B. 孤单的 C. 礼貌的 D. 沉重的 9. The group compared their notes before making a decision. A. 表面 B. 记忆 C. 灯光 D. 决定 10. This method is useful when you read a long passage. A. 云朵 B. 桥梁 C. 花园 D. 方法 阅读理解第一节（共5小题；每小题4分，满分20分） 阅读下列短文，从每题所给的A、B、C、D四个选项中，选出最佳选项。 A public museum in Guangzhou started a “one object, one story” project for teenagers. Instead of asking visitors to remember many dates, the project invited them to choose one object and follow its story through pictures, short texts and quiet questions. The museum believed that one well-understood object could open the door to a much larger history. Sixteen-year-old Wen Jia chose a small blue bowl. At first, it did not look special to her. It was smaller than her rice bowl at home and had only a few lines on its surface（表面）. Then she read that the bowl had traveled through river markets over one hundred years ago. It might have held tea, medicine or soup for different families. Suddenly, the bowl seemed to carry many hands and many mornings. The project guide asked each student to write three questions: Who used it? How did it move? Why was it kept? Wen Jia could not answer all of them, but the questions changed her way of looking. She stopped seeing the bowl as a cold thing behind glass. She began to imagine boats, shops and people who needed simple objects in daily life. At the end, students shared their findings in small groups. Some chose a fan, a letter or a wooden box. Their stories were different, but many reached the same idea: history is not only about famous names. It also lives in ordinary（普通的） things used by ordinary people. After returning home, Wen Jia looked at her grandmother’s old cup more carefully. She asked when it was bought and why it was never thrown away. Her grandmother smiled and began a story about moving to the city. Wen Jia then understood the museum project better. An object becomes meaningful when someone is willing to ask and listen. 11. What did the museum project ask teenagers to do? A. Remember as many dates as possible B. Choose one object and follow its story C. Draw famous people from history D. Buy old objects from river markets 12. Why did the blue bowl become interesting to Wen Jia? A. It was larger than her bowl at home B. It had many bright pictures on it C. It had traveled through river markets long ago D. It was made by her grandmother 13. What did the guide’s questions help Wen Jia do? A. Look at the bowl in a new way B. Find all answers on the first page C. Open the glass case by herself D. Forget the bowl’s daily use 14. What common idea did many students get? A. History only belongs to famous people B. Letters are more useful than bowls C. Museums should keep fewer objects D. Ordinary things can carry history 15. What happened after Wen Jia returned home? A. She asked about her grandmother’s old cup B. She threw away her family’s old things C. She bought a new blue bowl online D. She stopped listening to museum stories 短文阅读五选五（共5小题；每小题2分，满分10分） 阅读下面短文，从短文后的A、B、C、D、E五个选项中选出可以填入空白处的最佳选项。 Online learning can be useful when we know how to manage it. A lesson on a screen is not easier just because we sit at home. ____16____ A clear plan helps us learn better and keeps the day from becoming messy. Before the lesson, prepare the desk. Put away snacks, games and things that are not needed. Keep a notebook and a pen nearby. ____17____ When everything is ready, you will not waste time looking for small things during class. During the lesson, listen actively. Do not only stare at the screen. Write down key words, mark questions and answer when the teacher asks. ____18____ These small actions make your brain work with the lesson instead of simply watching it pass. After the lesson, review quickly. Five minutes can be enough to read your notes and circle what you still do not understand. ____19____ If you wait until the next week, many details may become unclear. Finally, protect your eyes and body. Stand up between lessons, look far away, stretch your shoulders and drink water. ____20____ Good online learning is not about sitting longer. It is about learning with attention, order and care for yourself. A. This habit keeps problems fresh in your mind. B. We still need rules and attention. C. Your body also needs a short rest. D. This helps you enter the lesson quickly. E. Active notes can turn listening into learning. 语法填空（共10小题；每小题2分，满分20分） 阅读下面短文，在空白处填入一个适当的词，或填入括号中所给单词的正确形式。 Last Sunday, my family visited a small wetland park near our home. We arrived early because my father wanted ____21____ (watch) birds before the paths became crowded. The morning air was cool, and several white birds were standing ____22____ the water. At the gate, a notice asked visitors not to feed the birds. My little brother did not understand it at first. My mother explained that human food might be ____23____ (danger) for wild birds, even if it looked kind. Then he put the bread back into his bag. We walked along the wooden path and spoke ____24____ (quiet). A guide told us that wetlands help clean water and give animals ____25____ safe home. She also showed us how leaves and mud（泥） could hold water after heavy rain. Near noon, we sat under a tree and drew what we saw. I drew a bird with long legs, but my brother drew three small fish. We laughed because his fish looked ____26____ (big) than the birds. Before leaving, we picked up two plastic bottles ____27____ someone had left near the grass. The visit was short, ____28____ it changed my idea of parks. Now I know a park can protect life and teach people ____29____ (care) for nature. I hope more visitors will follow the rules ____30____ keep the wetland clean. 完成句子（共3小题；每小题2分，满分6分） 根据括号内汉语提示完成句子。 31. Reading one object carefully can help us _____________________（更好地理解历史）. 32. Please_____________________（把手机放进）your schoolbag before the online class begins. 33. The wetland park teaches visitors _____________________（不要给野鸟喂食）. 应用写作（共1小题；满分14分） 根据下面提示完成应用写作。 34. 【写作内容】假如你是李华，你参加了学校组织的湿地公园观察活动。请给同学写一则英文分享，内容包括：活动时间与地点、你看到的内容、你的收获。 【写作要求】正文约40个英文单词，文中不可出现你自己的真实姓名、学校等信息。 【评分标准】内容完整，语言规范，语篇连贯。 __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 原创精品资源学科网独家享有版权，侵权必究！ 学科网（北京）股份有限公司 $