2016年北京市东城区高三英语一模试题含答案

东城区2015 2016学年度第二学期高三综合练习 一 英语试卷 2016 4 本试卷共12 页 共150 分 考试时长120 分钟 考生务必将答案答在答题 卡上 在试卷上作答无效 考试结束后 将本试卷和答题卡一并交回 第一部分 听力理解 共三节 30 分 第一节 共5 小题 每小题1 5 分 共7 5 分 听下面5 段对话或独白 每段对话或独白后有一道小题 从每题所给的A B C 三个选项中选出最佳选项 听完每段对话或独白后 你将有10 秒钟的时间 来 回答有关小题和阅读下一小题 每段对话或独白你将听一遍 例 What is the man going to read A A newspaper B A magazine C A book 答案是A 1 Which color does the man prefer A White B Black C Red 2 Who needs a job A Sue B The man C The woman 3 What time is the train for New York A 4 20 B 4 25 C 4 30 4 What will the boy do tonight A Clean the room B Go to the cinema C Finish the homework 5 Why does the woman make the phone call A To make an appointment B To ask Dave to ring her back C To get some information for the trip 第二节 共10 小题 每小题1 5 分 共15 分 听下面4 段对话或独白 每段对话或独白后有几道小题 从每题所给的A B C 三个选项中选出最佳选项 听每段对话或独白前 你将有5 秒钟的时间阅读 每小题 听完后 每小题将给出5 秒钟的作答时间 每段对话或独白你将听两 遍 听第6 段材料 回答第6 至7 题 6 What is the woman going to do A Play tennis B Go swimming C Go cycling 7 What is the possible relationship between the speakers A Classmates B Colleagues C Husband and wife 听第7 段材料 回答第8 至9 题 8 What does the man plan to do A Move to a flat B Apply for a university C Decorate the kitchen 9 How will the man go to the university A By bicycle B By bus C On foot 听第8 段材料 回答第10 至12 题 10 Where does the man want to stay A In the country B By the beach C In the city 11 What kind of hotel does the man want to stay in A A family hotel B A farmhouse C A spa hotel 12 Which hotel does the man choose A Roomba Inn B Sparking Springs C Harhour Grand Hotel 听第9 段材料 回答第13 至15 题 13 What will the listeners get on Friday A Photos B Uniforms C ID cards 14 What is the woman mainly talking about A Regulations B Arrangements C Experiences 15 Who night be the listeners A Customers B Clerks C Guides 第三节 共5 小题 每小题1 5 分 共7 5 分 听下面一段对话 完成第16 至20 五道小题 每小题仅填写一个词 听对话前 你将有20 秒钟的时间阅读试题 听完后你将有60 秒钟的作答时间 这段对话 你将听两遍 Homework Subject Biology Information of the book Name 16 Author Marie 17 On the 18 shelf on the biology bookshelf Tasks Read Pages 123 to 127 Learn about 19 Finish by 20 第二部分 知识运用 共两节 45 分 第一节单项填空 共15 小题 每小题1 分 共15 分 从每题所给的A B C D 四个选项中 选出可以填入空白处的最佳选项 并 在答题卡上将该项涂黑 例 It s so nice to hear from her again we last met more than thirty years ago A What s more B That s to say C In other words D Believe it or not 答案是D 21 Kimberly an article so don t disturb her A would write B writes C wrote D is writing 答案 D 知识点 现在进行时及其被动式 难度 1 22 Robert had a comfortable childhood up in a pleasant house with a view of the sea A grew B growing C grown D to grow 答案 B 知识点 现在分词 难度 2 23 The world is not always we wish it to be A that B which C what D where 答案 C 知识点 表语从句 难度 2 24 More subway lines to make travelling easy in Beijing in the coming years A will build B will be built C build D are built 答案 B 知识点 一般将来时及其被动式 难度 3 25 This computer is different from the one I in my last job A use B have used C used D had used 答案 C 知识点 一般过去时及其被动式 难度 3 26 He had a great desire to have a home of his own he had always lived with his grandmother A or B and C so D for 答案 D 知识点 连词 连接词 难度 3 27 Are you ready for the history test tomorrow No I wish I the clock back A had turned B could turn C will turn D would have turned 答案 B 知识点 虚拟语气 难度 3 28 Meyer and his team were the first how the disease spreads from animals to humans A showing B show C to show D shown 答案 C 知识点 不定式 难度 3 29 Hey the washing up has been done That Cynthia She s always helpful A need have been B could have been C should have been D must have been 答案 D 知识点 情态动词 难度 4 30 The room looks bigger We the furniture A have changed B had changed C changed D are changing 答案 A 知识点 现在完成时及其被动式 难度 2 31 Finding a time suits everyone is going to be difficult A that B when C what D where 答案 A 知识点 定语从句 难度 2 32 We strongly advise you eating your meal so late It s not healthy A on B against C from D over 答案 B 知识点 介词 介词短语 难度 2 33 Having pictures to color will keep children for hours A amused B amusing C amuse D to amuse 答案 A 知识点 过去分词 难度 3 34 The use of computers has made possible for more people to work at home A it B that C which D what 答案 A 知识点 代词 不定代词 难度 2 35 Muir succeeds other designers have failed her clothes are original yet stylish A that B what C which D where 答案 D 知识点 状语从句 难度 3 第二节 完形填空 共20 小题 每小题1 5 分 共30 分 阅读下面短文 掌握其大意 从每题所给的A B C D 四个选项中 选 出最佳选项 并在答题卡上将该项涂黑 Running for a Dream I will never forget that November day It was hotter than normal This was the 36 my father and I had waited so long for because we had been working towards this race for three years Dozens of familiar faces from church and school flashed across my view They had come 37 me I saw worry and 38 on my father s face Then the race began For the first two and a half miles I felt 39 I had never before been so ready for something The weeks leading up to the race were filled with controlled 40 and a strict diet My friends hadn t seen me in weeks but they understood the 41 required to make my dream a reality As in all of my races I didn t 42 out in the front I loved the pleasure of passing people as my strength overtook their premature speed Then without warning my strength began to decrease Neck and neck with one of my greatest competitors I 43 see the finish line I had begun the final dash into 44 when my knees became weak and my legs gave way Nothing I could do would make them 45 weight I watched as runners rushed by me 46 I knew my dreams of victory were destroyed I had to finish the race However my legs hurt badly With all of the 47 left in me I got on my hands and knees and crawled 爬 inch by inch across the finish line Voices both 48 and familiar cheered me on They gave me the courage to keep 49 until the very end The doctors were there in seconds but my eyes searched the crowd for him There was only one person I wanted to 50 to I whispered I m so sorry Dad I m so sorry I 51 you He looked at me saying You could never disappoint me Sometimes these things just 52 All that matters is that you did your best But we worked so 53 What about our dream He reached over for my hand and said Don t you know that you are my dream and it has come true It wasn t long before my running shoes were back on marking a 54 path for my journey I learned that all of the miles the tears the sweat and the pain my dad and I experienced together were not for a 55 What I realized though was that to him I was the greatest prize he had ever won 36 A dream B weather C result D day 37 A for B to C across D over 38 A coldness B astonishment C excitement D amusement 39 A proud B great C nervous D afraid 40 A programs B studies C instructions D practices 41 A sacrifice B potential C patience D attention 42 A look B move C start D come 43 A should B could C must D need 44 A relief B spirit C pleasure D glory 45 A give B feel C hold D add 46 A Where B Because C If D Although 47 A trust B emotion C strength D confidence 48 A loud B foreign C soft D firm 49 A going B running C fighting D training 50 A refer B talk C listen D agree 51 A frightened B disturbed C disappointed D bored 52 A develop B change C follow D happen 53 A late B hard C closely D quickly 54 A new B near C rough D narrow 55 A wish B duty C rank D race 知识点 人物 故事 难度 3 第三部分 阅读理解 共两节 40 分 第一节 共15 小题 每小题2 分 共30 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 并在答题卡上将该项涂黑 A New Way to Experience Dentistry Have you ever had your hand held during a dental procedure you feel uneasy about What about a dental office that mimics 模仿 the spirit of Disneyland If you re looking for a dental office that provides the best care and the best environment you re looking for Dr Licking s office in Sunnyvale Officer manager Judy who has worked with Dr Licking for 38 years speaks highly of his kindness She believes that the office is the Disneyland of dentistry Everyone from children to their grandparents loves the environment and care they receive from this welcoming office Dr Licking is known as the best dental care provider for anyone who fears facing appointments with the dental office The staff goes out of their way to make patients feel comfortable and at ease Dr Licking and Judy set the standard with their saying when someone comes to your home you stand up and welcome them like an old family friend Dr Licking s office has all They recently relocated to put the new equipment into their practice The office is equipped with an intra oral video camera and as a patient you can get pictures of your teeth as you re walking out the door Setting himself apart from other dentists Dr Licking continues his education beyond what is required For this reason he is one of few dentists in the country who offers ozone treatment Ozone can naturally stop decay 蛀蚀 in its tracks For more information on this new technology visit their website at Dr Licking s office is Diamond Certified an honor given only to companies with the higher quality after extensive and continual research Dr Licking s office extends an invitation to you to meet their gentle staff and offers you a free office visit including x rays and an exam The office holds extended hours ranging from 7 a m to 8 p m Monday through Thursday Don t worry if you have an emergency Dr Licking s office responds to all emergencies and urgent calls JOHN LICKING D D S Cosmetic pays no vehicle fees and is free from many regulations on other businesses Despite these advantages the USPS has lost 52 billion since 2007 and will continue losing money without major reforms The problem is that Congress is preventing the USPS from reducing costs as its sales decline and is blocking efforts to end Saturday service and close unneeded post office locations USPS also has a costly union dominated workforce that slows the introduction of new ideas or methods down USPS workers earn significantly higher payment than comparable private sector workers The answer is to privatize the USPS and open postal markets to competition With the rise of the Internet the argument that mail is a natural monopoly that needs government protection is weaker than ever Other countries facing declining letter amounts have made reforms Germany and the Netherlands privatized their national postal companies over a decade ago and other European countries have followed suit Britain floated shares of the Royal Mail on its stock exchange in 2013 Some countries such us Sweden and New Zealand have not privatized their national postal companies but they have opened them up to competition These reforms have driven efficiency improvements in all of these countries Additional number of workers have been reduced productivity has risen and consumers have benefited Also note that cost cutting measures such as closing tone post offices are good for both the economy and the environment Privatization and competition also encourage new changes When the USPS monopoly over extremely urgent mail was stopped in 1979 we saw an explosion in efficient overnight private delivery by firms such as FedEx The government needs to wake up to changing technology study postal reforms abroad and let businessmen reinvent our out of date postal system 67 What do we know about the USPS A Its great competitor is the delivery firm FedEx B It is an old public service open to competitions C Its employees don t pay federal state or local taxes D It has complete control of first class and standard mail 68 The author mentions some other countries in Paragraph 4 to A explain the procedures of reform to the USPS B show the advantages of private postal services C set some examples for the government to learn from D prove the situation is very common around the world 69 The author probably that the USPS A needs government s protection as ever B can work together with other businesses C must be replaced by international companies D should be sold out and become a private service 70 Which of the following shows the development of ideas in this passage A B C D I Introduction CP Central point P Point Sp Sub point 次要点 C Conclusion 知识点 政治经济文化 难度 3 第二节 共5 小题 每小题2 分 共10 分 根据短文内容 从短文后的七个选项中选出能填入空白处的最佳选项 选项中 有 两项为多余选项 What Is Emotional Eating Emotional eating is when people use food as a way to deal with feelings instead of satisfying hunger 71 Have you ever finished a whole bag of chips out of boredom or downed cookie after cookie while preparing for a big test But when done a lot especially without realizing it emotional eating can affect weight health and overall well being Not many of us make the connection between eating and our feelings 72 One of the biggest myths about emotional eating is that it s caused by negative feelings Yes people often turn to food when they re stressed out lonely sad anxious or bored But emotional eating can be linked to positive feelings too like the romance of sharing dessert on Valentine s Day or the celebration of a holiday feast Sometimes emotional eating is tied to major life events like a death or a divorce 73 Emotional eating patterns can be learned A child who is given candy after a big achievement may grow up using candy as a reward for a job well done 74 It s not easy to unlearn patterns of emotional eating But it is possible And it starts with an awareness of what s going on We re all emotional eaters to a degree But for some people emotional eating can be a real problem causing serious weight gain or other problems The trouble with emotional eating is that once the pleasure of eating is gone the feelings that cause it remain 75 That s why it helps to know the difference between physical hunger and emotional hunger Next time you reach for a snack wait and think about which type of hunger is driving it A Believe it or not we ve all been there B If a crying boy gets some cookies he may link cookies with comfort C One study found that people who eat food like pizza become happy afterwards D And you often may feel worse about eating the amount or type of food you like E Understanding what drives emotional eating can help people take steps to change it F Boys seem to prefer hot homemade comfort meals while girls go for chocolate and ice cream G More often though it s the countless little daily stresses that cause someone to seek comfort in food 知识点 信息匹配 难度 3 第四部分 书面表达 共两节 35 分 第一节 15 分 美国友好校学生来你校参加为期一周的艺术交流活动 你负责接待并致辞 发 言内容包括 1 表示欢迎 2 简要介绍学校的某艺术社团的基本情况 例如 合唱团 戏剧社 舞蹈队 书画社等 3 表示美好祝愿 注意 1 词数不少于50 2 开头已给出 不计入总词数 Dear friends 请务必将作文写在答题卡指定区域内 知识点 提纲作文 难度 2 第二节 20 分 假如你是红星中学高三1 班的李华 请按以下四幅图的顺序 给你校 英语园地 投稿 介绍上学期你们班参加学校组织的 2015 中国 的主题板报的比赛过程 注意 1 词数不少于60 2 开头已给出 不计入总词数 3 提示词 阅兵式military parade Last term our school held a blackboard newspaper contest on Unforgettable 2015 in China 知识点 情景作文 难度 3 北京市东城区2016 年高三一模答案与解析 英语 2016 4 第一部分 听力理解 共三节 30 分 第一节 1 5 CAABC 第二节 6 10 BAACA 11 15 CBCBB 第三节 16 Ocean 17 Cooper 18 fifth 5th 19 fish 20 Wednesday Wed 第二部分 知识运用 共两节 45 分 第一节 单项填空 共15 小题 每小题1 分 共15 分 21 25 DBCBC 26 30 DBCDA 31 35 ABAAD 第二节 完形填空 共20 小题 每小题1 5 分 共30 分 36 40 DACBD 41 45 ACBDC 46 50 DCBAB 51 55 CDBAD 第三部分 阅读理解 共两节 40 分 第一节 共15 小题 每小题2 分 共30 分 56 60 ACDCA 61 65 BAABD 66 70 BDCDB 第二节 共5 小题 每小题2 分 共10 分 71 75 AEGBD 第二部分 知识运用 共两节 45 分 第一节单项填空 共15 小题 每小题1 分 共15 分 从每题所给的A B C D 四个选项中 选出可以填入空白处的最佳选项 并在答题卡上将该项涂黑 21 答案 D 翻译 Kimberly 正在写文章 别去打扰她 解析 本题考查时态 根据句意 选用现在进行时 表示说话时刻正在进行 的 动作 A would write 过去将来时 必须和一般过去时结合使用 表示过去的将 来 B writes 一般现在时 表示经常 习惯的动作 客观真理 现在的事实或 状 态 代替一般将来时 C wrote 一般过去时 表示过去的动作 与现在无关 22 答案 B 翻译 Robert 的童年非常愉快 他在一所舒适的面朝大海的房子里长大 解析 本题考查非谓语动词 非谓语动词在此作状语 与逻辑主语Robert 之 间是主动的 所以排除B grown 过去分词 A grew 一般过去时 不是非谓语动 词 D to grow 在时间上表示将来 而此题表示的是一个事实 所以选择 growing 现在分词 用来表示主动且事实 23 答案 C 翻译 这个世界并不总是我们所希望的那样 解析 本题考查表语从句 表语从句be 动词后缺少表语 所以使用连接代词 连接代词B C 的区别在于两点 一翻译 which 意为 哪一个 what 意为 什 么 二有无范围 which 有范围 what 无范围 所以本题选择what 24 答案 B 翻译 在未来几年 北京将建设更多的地铁线路使交通更便利 解析 本题考查时态 根据时间状语in the coming years 判断为一般将来时 地铁线路 是 被建造 因此选择一般将来时的被动语态 25 答案 C 翻译 这台电脑和我上一份工作中使用的电脑不一样 解析 本题考查时态 从 我上一份工作中使用的电脑 判断 使用 是过去 的动作 因此选择一般过去时 26 答案 D 翻译 由于他长期和他奶奶住在一起 他强烈的希望拥有自己的家 解析 本题考查并列连词 他强烈的希望拥有自己的家 的原因是 他长期 和他奶奶住在一起 所以选择 for 因此 A or 或者 否则 B and 并 且 C so 因此 27 答案 B 翻译 明天的历史考试 你准备好了吗 真希望时光能退回去呀 解析 本题考查虚拟语气 wish 后的虚拟语气 如果跟现在相反 用 did were 跟过去相反 用had done 跟将来相反 用 would could might do 根据句意 我是希望时间 将来 能退回去 因此选择 B could turn 28 答案 C 翻译 Meyer 和他的团队是第一个展示了这种疾病是如何从动物传染给人类 的 解析 本题考查非谓语动词 非谓语动词作定语前有the only the last the next the first the best 等序数词或形容词最高级时 必须用不定式 29 答案 D 翻译 嘿 洗刷的工作已经被做完了 那一定是Cynthis 做的 她总是乐于助人 解析 本题考查情态动词表推测 根据句意 语气非常肯定 所以选择D must have been 表示对过去非常肯定的推测 A need have done 意为 本来需要 做 而没做 只能用作虚拟语气 不能表推测 B could have done 可以表推 测 但是语气不确定 也可以表示虚拟语气 意为 本来能做 而没做 D should have done 意为 本来应该做 而没做 只能用作虚拟语气 不能 表推测 30 答案 A 翻译 房间看起来更大了 我们换了家具 解析 本题考查时态 根据句意 家具是 过去 换的 但是对现在造成了影 响 即 房间看起来更大了 因此选择A 现在完成时 表示过去发生的动作 对现在的影响 31 答案 A 翻译 找到一个适合所有人的时间会很难 解析 本题考查定语从句 定语从句缺少主语 所以此时应该考虑关系代词 排除B D 两个关系副词 C what 不能引导定语从句 也予以排除 因此答案选 择A 32 答案 B 翻译 我们强烈建议你不要那么晚吃饭 不利于健康 解析 本题考查介词 advise doing sth advise sb not to do sth advise sb against doing sth 为advise 的固定词组 against 在此表示 反对 对抗 33 答案 A 翻译 给图片上色能让孩子们快乐好几个小时 解析 本题考查非谓语动词 非谓语动词在此作使役动词keep 的补语 要判 断宾语children 和补语amuse 的关系 从Children are amused 可以判断 两 者是被动的关系 所以选择过去分词A amused 34 答案 A 翻译 电脑的使用 是更多的人在家里办公成为可能 解析 本题考查代词 it 在此作形式宾语 真正的宾语是后面的不定式to work at home 有些可以加宾补的动词 如make consider keep think of 如果宾语 太长 常常借助于代词it 使其作形式宾语 而将真正的宾语放在后面 35 答案 D 翻译 Muir 在别的设计师失败的地方成功了 她的服装是新颖的 流行的 解析 本题考查状语从句 根据句意 Muir 在别的设计师失败的 地方 成 功了 所以选择where 用来引导地点状语从句 A B D 都不能引导状语从句 第二节完形填空 共20 小题 每小题1 5 分 共30 分 作者在一次赛跑中腿部受伤仍坚持爬过终点线 从而对人生有了更深刻的感悟 36 答案 D 解析 根据第一句I will never forget the November day 37 答案 A 解析 介词for 表 为了 38 答案 C 解析 情感线索 结合排除法 爸爸此时的心情既担心又感到兴奋 amusement 娱乐 39 答案 B 解析 根据后一句I had never before been ready for something 所以刚开始 跑的时候作者感觉很好 40 答案 D 解析 很简单 根据尝试就可以做出来 为了比赛而训练 41 答案 A 解析 我朋友们理解我为实现梦想而做出的牺牲 42 答案 C 解析 在我所有的比赛中 我开始的时候并没有领先 我喜欢赶超别人 43 答案 B 解析 could 过去的能力 我能看到终点线 44 答案 D 解析 glory 光荣 荣誉 此句话意思是我要做最后的冲刺了 很快就能取 得 胜利的荣誉 45 答案 C 解析 我的腿不能支撑住我身体的重量 46 答案 D 解析 尽管我知道我已无缘夺冠 但是我还要继续完成比赛 47 答案 C 解析 作者尽全力 用手和膝盖朝终点爬去 48 答案 B 解析 foreign 在这里不是国外的 是和 familiar 相对 意为陌生的 49 答案 A 解析 keep going 继续保持 作者此时是爬行 所以不选running 50 答案 B 解析 根据下一句I whisper 可知选择talk 51 答案 C 解析 根据下文you could never disappoint me 52 答案 D 解析 这种事难免发生 重要的是你要尽最大努力 53 答案 B 解析 work hard 努力 54 答案 A 解析 没过多久我又穿上了跑鞋 开始了一段新的征程 55 答案 D 解析 此句是文章的升华 把race 上升到人生高度 第三部分 阅读理解 共两节 40 分 A 篇New Way to experience Dentistry 本文介绍了一家比较受欢迎的牙科诊所 题目比较简单 56 题细节题正确答案为 A 答案出自文章的第一段第三行 a dental office that provides the best care and the best environment 与选项中的 A 选项表述相符 57 题细节题正确答案为 C 答案出自第五段 Dr Licking continues his education beyond what is required 并且根据下文可知 他学习的东西仍然是有关于牙科的 与C 选项表述符合 58 题主旨题正确答案为 D 整篇文章都是对Dr Licking 这家牙科诊所的介绍 并且倒数第二段出现了 Dr Licking s office extends an invitation to you to meet their gentle staff and offers you a free office visit 说明了此篇文章的写作目的 B 篇 本文是一篇记叙文 讲述了女孩Hallie 家的咖啡店原本经营不善 后来在 Hallie 的帮助下 生意逐渐好转的故事 59 题细节题正确答案为 C 根据第二段第一行Hallie 主动提供帮助 但是她的爸爸回答她 There s not much you could do How about you clean the counters instead 可知答案 符 合C 选项中的Hallie s parents didn t take her opinions seriously 60 题细节题正确答案为 A 根据第三段可知 咖啡店依然保留着Hallie 的祖父Carl 时代的装修风格 可知 答案 符合A 中的It is behind the times 它已经过时了 61 题细节题正确答案为 B 根据第五段第二行可知 Hallie 趁父母不在的时候 对咖啡店做了一系列的改 变 Bright attractive coverings spread over the tables and modern posters hung on the walls 可知答案 符合 B 中的She made the shop more attractive Hallie 使咖啡店更具吸引力 62 题推理题正确答案为 A Hallie 在父母离开后 通过观察 发现她家的咖啡店不符合年轻人的审美 于 是 在装修上做出了一系列的改变 使得咖啡店的生意好转 可知Hallie 很聪明 而 且对生意很有帮助 故选择A Smart and helpful C 篇Music for Humans and Humpback Whales 本文属于科普类说明文 全篇以Humpback Whales 座头鲸 为例阐述了 动物和人类一样具备音乐创作的能力 63 题词义推断题正确答案为 A 该词在文章第三段 联系前后文可知 深入分析Humpback Whales 会发现 它 们都趋向于发出那种动听悦耳 被大众喜爱的声音 64 题细节题正确答案为 B 根据第四段可知Humpback Whales 能够灵活运用节奏 音阶 以及声音的表现 形式 使发声动听优美 65 题主旨大意题正确答案为 D 第二段最后一句引出全篇要说明的话题 创作音乐并非专属人类世界 动物世 界 也同样存在 接下来 全文围绕这一观点进行说明 66 题文章结构题正确答案为 B 根据全文可知 前两段提出要阐述的话题 之后以Humpback Whales 为例进一 步说明这一事实 D 篇 本文为议论文 主要论述了如何解决USPS 在经营上遇到的问题 67 题细节题正确答案为 D 答案在第二段第一句 USPS 垄断了 first class and standard mail 68 题写作意图题正确答案为 C 第四段写到其他遇到相同问题的国家都是如何解决的 以此可以推断出是希望 政府看到这些例子并效仿 69 题观点态度题正确答案为 D 文章第四段中 作者认为解决USPS 的问题 政府应该向这些国家学习 那么 可推理出这些国家的做法是作者认可的 这些国家的做法可总结为两种 私有 化 和脱离政府的庇护进入竞争市场 因此答案是D 70 题文章结构题正确答案为 B 全文一共七段 第一段和第二段是背景信息 属于Introduction 第三段属于 Central point 第四五段是P1 第六段是P2 第七段进行总结属于Co