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双曲线及其标准方程教学设计人教A版高中数学选择性必修第一册
∵在△EFP中,|EF|=2c,EF上的高为点P的纵坐标,∴S△EFP=4/3c2=12,∴c=3,即P点坐标为(5,4).由两点间的距离公式|PE|=√("(" 5+3")" ^2+4^2 )=4√5,|PF|=√("(" 5"-" 3")" ^2+4^2 )=2√5,∴a=√5.又b2=c2-a2=4,故所求双曲线的方程为x^2/5-y^2/4=1.5.求适合下列条件的双曲线的标准方程.(1)两个焦点的坐标分别是(-5,0),(5,0),双曲线上的点与两焦点的距离之差的绝对值等于8;(2)以椭圆x^2/8+y^2/5=1长轴的端点为焦点,且经过点(3,√10);(3)a=b,经过点(3,-1).解:(1)由双曲线的定义知,2a=8,所以a=4,又知焦点在x轴上,且c=5,所以b2=c2-a2=25-16=9,所以双曲线的标准方程为x^2/16-y^2/9=1.(2)由题意得,双曲线的焦点在x轴上,且c=2√2.设双曲线的标准方程为x^2/a^2 -y^2/b^2 =1(a>0,b>0),则有a2+b2=c2=8,9/a^2 -10/b^2 =1,解得a2=3,b2=5.故所求双曲线的标准方程为x^2/3-y^2/5=1.(3)当焦点在x轴上时,可设双曲线方程为x2-y2=a2,将点(3,-1)代入,得32-(-1)2=a2,所以a2=b2=8.因此,所求的双曲线的标准方程为x^2/8-y^2/8=1.当焦点在y轴上时,可设双曲线方程为y2-x2=a2,将点(3,-1)代入,得(-1)2-32=a2,a2=-8,不可能,所以焦点不可能在y轴上.综上,所求双曲线的标准方程为x^2/8-y^2/8=1.
椭圆的简单几何性质（1）教学设计人教A版高中数学选择性必修第一册
1.判断 (1)椭圆x^2/a^2 +y^2/b^2 =1(a>b>0)的长轴长是a. ( )(2)若椭圆的对称轴为坐标轴,长轴长与短轴长分别为10,8,则椭圆的方程为x^2/25+y^2/16=1. ( )(3)设F为椭圆x^2/a^2 +y^2/b^2 =1(a>b>0)的一个焦点,M为其上任一点,则|MF|的最大值为a+c(c为椭圆的半焦距). ( )答案:(1)× (2)× (3)√ 2.已知椭圆C:x^2/a^2 +y^2/4=1的一个焦点为(2,0),则C的离心率为( )A.1/3 B.1/2 C.√2/2 D.(2√2)/3解析:∵a2=4+22=8,∴a=2√2.∴e=c/a=2/(2√2)=√2/2.故选C.答案:C 三、典例解析例1已知椭圆C1:x^2/100+y^2/64=1,设椭圆C2与椭圆C1的长轴长、短轴长分别相等,且椭圆C2的焦点在y轴上.(1)求椭圆C1的半长轴长、半短轴长、焦点坐标及离心率;(2)写出椭圆C2的方程,并研究其性质.解:(1)由椭圆C1:x^2/100+y^2/64=1,可得其半长轴长为10,半短轴长为8,焦点坐标为(6,0),(-6,0),离心率e=3/5.(2)椭圆C2:y^2/100+x^2/64=1.性质如下:①范围:-8≤x≤8且-10≤y≤10;②对称性:关于x轴、y轴、原点对称;③顶点:长轴端点(0,10),(0,-10),短轴端点(-8,0),(8,0);④焦点:(0,6),(0,-6);⑤离心率:e=3/5.
椭圆的简单几何性质（2）教学设计人教A版高中数学选择性必修第一册
二、典例解析例5. 如图，一种电影放映灯的反射镜面是旋转椭圆面（椭圆绕其对称轴旋转一周形成的曲面）的一部分。过对称轴的截口 ABC是椭圆的一部分，灯丝位于椭圆的一个焦点F_1上，片门位另一个焦点F_2上，由椭圆一个焦点F_1 发出的光线，经过旋转椭圆面反射后集中到另一个椭圆焦点F_2，已知 〖BC⊥F_1 F〗_2，|F_1 B|=2.8cm, |F_1 F_2 |=4.5cm,试建立适当的平面直角坐标系，求截口ABC所在的椭圆方程(精确到0.1cm)典例解析解：建立如图所示的平面直角坐标系，设所求椭圆方程为x^2/a^2 +y^2/b^2 =1 (a>b>0) 在Rt ΔBF_1 F_2中,|F_2 B|= √(|F_1 B|^2+|F_1 F_2 |^2 )=√(〖2.8〗^2 〖+4.5〗^2 ) 有椭圆的性质 , |F_1 B|+|F_2 B|=2 a, 所以a=1/2(|F_1 B|+|F_2 B|)=1/2(2.8+√(〖2.8〗^2 〖+4.5〗^2 )) ≈4.1b= √(a^2 〖-c〗^2 ) ≈3.4所以所求椭圆方程为x^2/〖4.1〗^2 +y^2/〖3.4〗^2 =1 利用椭圆的几何性质求标准方程的思路1．利用椭圆的几何性质求椭圆的标准方程时，通常采用待定系数法，其步骤是：(1)确定焦点位置；(2)设出相应椭圆的标准方程(对于焦点位置不确定的椭圆可能有两种标准方程)；(3)根据已知条件构造关于参数的关系式，利用方程(组)求参数，列方程(组)时常用的关系式有b2＝a2－c2等．
大班科学教案：魔法的一分钟
准备：1.有秒针的大钟。 2.有爷爷的图片，开心与不开心的图片各一幅。 3.《幸福拍手歌》一盘。 4.各种不快乐的小动物的图片人手一张。 过程：一.爷爷不开心，出示第一张图片。 1.“请小朋友看看，这张图片上有谁？他怎么了？” 幼：爷爷很不开心很难过 2.“你是从哪里看出来的？” 幼：爷爷的眉头皱在一起，爷爷的嘴巴不笑！
X部门2024年上半年人才工作总结及下半年工作计划
二是提速高技能人才培养。推进XX艺才高级技工学校打造我区首个技师学院，推动建立X个新职业培训示范基地、X个技能大师工作室、X个“巴渝工匠”乡村驿站，新增X家以上企业自主评价机构，提升技能人才培养层次。力争到2024年底，全区技能人才总量达到XX万人，高技能人才总量达到XX万人。三是优化人才招聘选拔机制。有序实施全区部门下属事业单位年度招聘工作，开展教育、卫生事业单位赴高校招聘应届优秀大学毕业生，规范开展基层医疗卫生机构考核招聘，进一步做好评比达标表彰工作和创建示范活动，充分发挥表彰激励作用。四是健全联系服务专家制度。坚持把搭建事业平台、发挥专家作用作为联系服务的重点，为专家创新创业提供良好条件，组织开展区内专家休假、疗养、学术交流“三位一体”活动，探索“学养结合”服务模式，打造各领域高层次人才交流互动平台。
干部在法治工作推进会上的发言范文
一年来，公司紧紧围绕法律工作要点，以“四项审核”为工作重心，进一步推进公司法治工作新五年规划的实施，取得了一定的成就，为企业快速、稳健发展保驾护航。一是法律制度不断完善。为将法治工作全面融入企业中心工作和生产经营，努力推动法治工作开展广覆盖，推动“法治XX”再升级。二是合同管理水平不断提升。合同管理作为现代企业管理的重要内容之一。把好合同关，是现代企业经营管理成败的一个重要因素。合同评审率及通过率较以前有了大幅度的提升。三是项目总法律顾问、法律联络员制度建设进一步健全。明确工作范围和职责，经理或主要负责人为法治工作第一责任人，形成完整的纵向联动机制。同时，总法律顾问、法律联络员挂牌办公、职责上墙，增强了项目总法律顾问、法律联络员的使命感和责任心。
小学美术岭南版五年级下册《第六单元18活动彩车模型》教材教案
1、了解和认识彩车巡游是节庆游艺形式之一。学习并掌握主题型、活动型彩车模型的设计制作方法。 2、在欣赏评述中,感受节庆中的彩车艺术,在探究实践中拓展设计思维,在参与“彩车巡游”的活动中感受成功的快乐。 3、体验彩车制作的科学原理,乐意和同学分工合作,体验节庆彩车巡游和学习成功的乐趣。 围绕个主题,综合利用各种环保材料设计制作美观的活动彩车模型。 彩车整体造型的构思与应用的活动原理。 教师播放视频，再讲述导语，使学生快速进入课堂学习氛围，引起他们的兴趣。（出示ppt） 师：我们先一起来看一段视频吧！从视频中我们可以看到不同的彩车有不同的装饰和特点。 师：在盛大的庆典或节日的游行队伍里，常可以看到色彩缤纷、造型独特的大型彩车，为节日增添了欢乐的气氛，同时很好地体现了一定的主题和思想内容。
初一国旗下讲话演讲稿
第一篇：初一国旗下演讲稿 初中尊敬的老师，亲爱的同学们，大家好：今天国旗下演讲的题目是《新学期新气象新目标》朝朝暮暮，花开花谢，潮起潮落，不知不觉中，小学的六年时光已经结束，告别了与我们朝夕相处的同学和老师，踏入了中学的大门，开始了新的学习征程。新学习，无疑为我们提供了崭新的园地，实验室，微机室都是我们曾经十分向往的地方，而现在却成了必须的学习天地；操场上绿草成茵，绿树成茂，一派耳目一新的景象。而我们在这新的环境下更要明确新的目标，找到正确的成功之路，但成功的道路往往由汗水铺通，征途并非一帆风顺，它需要忠心耿耿的追求，持之以恒的攀登和脚踏实地的努力。所以要培养坚持不懈，吃苦耐劳的精神。决心学习的人，要有远大的志向，要有对学习的热爱，在困难和挫折面前，不灰心丧气，把好的品质体现在学习中。到了初中，有好的纪律和好的习惯也是很重要的，每天下午的军训对我们来说是一种考验，也是一种人生的体验。让我们知道了什么事命令，什么是该做的，什么是不该做的，我们必须绝对服从老师的命令，听从老师的安排。而军训也是一个磨砺自己的过程，我们绝不能因为受一点苦就放弃，更不能因为严厉就半途而废，我们必须用一颗顽强的心去战斗，去拼搏，去取得最后的胜利。
初中语文《一棵小桃树》试讲稿_教案设计
贾平凹，1952年2月21日生于陕西省商洛市丹凤县棣花镇，当代作家。 1974年开始发表作品。1975年毕业于西北大学中文系。1978年凭借《满月儿》，获得首届全国优秀短篇小说奖。1982年发表作品《鬼城》《二月杏》。1992年创刊《美文》。1993年创作《废都》。20**年，先后担任西安建筑科技大学人文学院院长、文学院院长。20**年凭借《秦腔》，获得第七届茅盾文学奖。20**年凭借《古炉》 ，获得施耐庵文学奖。20**年3月22日，澳门大学向贾平凹颁授了荣誉博士学位。
人教版高中地理必修2城市内部空间结构教案
过渡：在实际生活中，城市内部空间结构并非完全按照这一经济规律呈现，而是更具复杂性。这说明除了经济因素外，还有很多其他因素在起作用，请大家结合你的认识、图2．9和案例1：纽约市的少数民族区谈谈你的看法。（2）其他因素I收入——形成不同级别住宅区的常见原因。有能力支付昂贵租金和选择最佳居住环境的人，其居住地往往形成高级住宅区。II知名度——城市内某些地区在历史、文化或经济方面具有很高的声誉，这往往会吸引更多新的住宅或商场建在该处，以提高其知名度。III种族聚居区的形成——在有些城市的某一区域内，如果某个种族或宗教团体占优势，就可能形成种族聚居区。如纽约市的唐人街、哈林区、小意大利区等。IV历史因素——城市的建筑物和街道设计可以维持久远，早期的土地利用方式对日后的功能分区有着深远的影响。
关于做一个守法公民的国旗下的讲话
法在我心中老师们、同学们，早上好！今天我演讲的题目是《法在我心中》。当清晨的第一缕阳光暖在心头，当黄昏的末一丝晚霞象我招手，时间便又匆匆而去。今天，我的心情有些沉重，因为小伟的故事让我震惊，让我心痛。小伟——XX省一个9岁的小学生，他非常想拥有一本《十万个为什么》，当他高高兴兴地问求妈妈的时候，妈妈却用“考上了第一就买，考不上就比买”而冷冷地回答了他。因为他从未考过第一，想看这本书了。于是他作出了一个荒唐的决定：敲诈邻居74岁的王奶奶。他曾两次把纸条夹到王奶奶家的门缝里，声称不拿出100元钱，就让她全家死光！大家可以想象得到：一位年过七旬的老人会是怎样的惊恐、焦虑与不安。很快，这个9岁的敲诈者便被警察抓捕归案。同学们：听完了这个故事，你有何感想呢？也许你会气愤地说：“应送他去少年管教所”，也许你会平淡地说：“孩子小，一个玩笑而已”也许你会怨恨说“是他妈妈不恰当的爱而激他犯错”，也许你也会理智地说：“是因为他缺乏法律意识而自酿苦果”。是啊，我们每个人在成长的历程中都难免会犯错。犯错并不可怕，可怕的是如何面对。
在2023年主题教育总结大会上的讲话
第三，进一步抓好问题整改落实，将主题教育问题整改与推进改革发展有机结合起来，严格对标对表，坚持统筹兼顾、标本兼治，确保整改落实全面到位，同时扎实做好第二批主题教育的谋划准备工作，确保整个主题教育上下联动、有机衔接。深刻认识检视整改是确保主题教育取得实效的关键一环，切实增强做好检视整改工作的政治自觉，坚持边学习、边对照、边检视、边整改，在抓好问题整改上下真功夫、下狠功夫，做到问题不解决不松手、整改不到位不罢休。对检视梳理的问题必须主动认领、自觉对号入座、深刻剖析根源，搞清楚是思想问题还是能力问题，是方法问题还是作风问题，是长期存在的顽瘴痼疾，还是最近才出现的急难杂症，做到真认账、真反思、真整改。从政治上认识、推进和检验整改工作，把人民群众满意不满意作为根本检验标准，增强“等不起、慢不得、坐不住”的紧迫感，把按时完成检视整改作为军令来执行，持续盯住问题不放、严格落实整改措施，确保事事有着落、件件有结果。把制度建设贯穿检视整改全过程，强化制度刚性约束，把整治成效转变为治堵效果，做到既谋当下、又管长远。
国家宪法日国旗下讲话稿：宪法在我心中
尊敬的各位老师，亲爱的同学们：大家早上好！今天我讲话的题目是“宪法在我心中”。在社会这个大家庭里，我们每个人如何约束自己、规范自己的行为呢？那就是——“法”。它是我们每个人明确是非的界限，这也是我们每个公民所应具备的最基本的素质。12月4日，是中国的“宪法日”。之所以确定这一天为“宪法日”，是因为中国现行的宪法在1982年12月4日正式实施。宪法是国家的根本大法，中华人民共和国宪法主要包括序言，总纲、公民的基本权利和义务、国家机构和国旗、国歌、国徽、首都四章。它保障国家权力有序运行，规范和制约国家权力；确认和保障公民基本权利；调整国家最重要的社会关系，维护社会稳定和国家长治久安。XX年全国人大常委会设立每年12月4日为国家宪法日。法律对我们小学生来说，可能只是一个神圣而又模糊的名词。法律是一件安全的外套。从我们出生开始，法律就对幼儿、小孩受教育、婚姻、生命财产不受侵害、社会医疗保障、老年抚养等等都作了明确的规定，同时还特别在1991年制定通过了未成年人保护法，对未成年人健康成长的保障进行了完善。法律的保护让我们快乐地成长，幸福地生活。法律是行动的指针。像我们开口不能骂人，伸手不能打人一样，我们的言行都要受到法律的约束，同时也受到法律的保护。大人们每做一项工作，每签一个合约，都要涉及很多法律条款，法律使社会运行有序，人们和谐相处。
新人教版高中英语必修2Unit 1 Cultural Heritage-Discovering Useful Structure教案一
This teaching period mainly deals with grammar “restrictive relative clauses.” To begin with, teachers should lead students to revise what they have learned about the relative pronouns and relative adverbs. And then, teachers move on to stress more special cases concerning this grammar, such as the “preposition+ relative pronouns which and whom” and cases where we can omit the relative pronouns. This period carries considerable significance to the cultivation of students’ writing competence and lays a solid foundation for the basic appreciation of language beauty. The teacher is expected to enable students to master this period thoroughly and consolidate the knowledge by doing some exercises. 1. Guide students to review the basic usages of relative pronouns and adverbs of attributive clauses.2. Lead students to learn to use some special cases concerning restrictive relative clauses flexibly.2. Enable students to use the basic phrases structures flexibly.3. Strengthen students’ great interest in grammar learning.1. Help students to appreciate the function of relative pronouns and adverbs of attributive clauses in a sentence2. Instruct students to write essays using the proper relative pronouns and adverbs of attributive clauses.本节语法思考：定语从句在复合句中的作用是什么？ 关系词有哪些？定语从句在复合句中的作用相当于形容词，它在句中作定语修饰名词或代词。他们在先行词和定语从句之间起到联系作用，同时在意义上代表先行词并在定语从句中担任一个成分。被定语从句所修饰的词称先行词，定语从句一般放在先行词的后面。
新人教版高中英语必修2Unit 2 Wildlife Protection-Reading and Thinking教案一
The listening and speaking part aims at how to protect and help endangered animals by listening, speaking and talking about the facts and reasons. This lesson analyzes the decreasing clause of Tibetan antelope population and the measures of protecting Tibetan antelopes. So students can be guided to learn to analyse the title and use different reading skills or strategies, like scanning, skimming and careful reading.1. Read quickly to get the main ideas and the purpose of going to Tibetan; read carefully to understand what the author see and think.2. Understand the sentences of the present continuous passive voice such as “Much is being done to protect wildlife.” and the inverted sentence “Only when we learn to exist in harmony with nature can we stop being a threat to wildlife and to our planet.”3. Enhance the awareness of protecting wildlife.4. Cultivate the reading methods according to different materials.1. Read quickly to get the main ideas and the purpose of going to Tibetan; read carefully to understand what the author see and think.2. Understand the sentences of the present continuous passive voice such as “Much is being done to protect wildlife.” and the inverted sentence “Only when we learn to exist in harmony with nature can we stop being a threat to wildlife and to our planet.”3. Cultivate the reading methods according to different materials.Step 1 Leading-inWatch a video about elephants and whales and then ask:Why are they endangered ? They are killed/hunted
新人教版高中英语必修2Unit 2 Wildlife Protection-Reading For Writing教案一
1. 标题首先根据海报的特点、格式写明标题。海报中往往把内容作为大标题。例如: Save the earth, Save the birds。2. 正文部分不同的海报其正文部分的侧重点不同。对于介绍性的海报, 首先要引出话题, 其次列出原因, 最后是总结。对于宣传类的海报, 要写明具体内容, 如: 活动内容, 地点以及参加活动的注意事项, 主持或举办单位等。1. 图片: 要选择引人注目的图片, 与主题要相关, 色彩明亮。话题句式 1. It is a treasure of our country. 它是我国的国宝。2. Believe it or not, at present only several thousand pandas exist in the world. 信不信由你, 目前世界上仅现存几千只熊猫。 3.It’s because of human activities that tigers are endangered. 正是因为人类的活动, 老虎处于濒危的状态。4. Many wild animals are in danger of dying out. 很多野生动物面临着灭绝的危险。 5. The government has taken effective measures to protect them. 政府已采取有效的措施来保护它们。6. People should raise the awareness of the protection of wild animals. 人们应该提高保护野生动物的意识。 7. It’s amazing that there are merely less than 1, 000 finless porpoises living in China. 非常令人吃惊, 目前中国仅有不足1 000只江豚。
新人教版高中英语必修2Unit 3 The Internet-Discovering Useful Structure教案一
This unit is about the Internet, which has a great influence to our humans and our lives. During the Listening & Speaking & Talking and Reading and Thinking section, the influence in examples has been shown. Thus, use the Present Perfect Tense is appropriate. However, in order to show the justice or weaken the doer of the behavior/action, it’s better to use the Present Perfect Passive Voice than the Present Perfect Tense. Besides, having learned to use the Present Perfect Passive Voice, students can beautify their language in their writing. 1. Learn the structure of the Present Perfect Passive Voice and its functions. 2. Learn to change the sentences with the Present Perfect Passive Voice into the sentences with the Present Perfect Passive Voice. 3. Learn to write sentences with the Present Perfect Passive Voice flexibly according to the context. 1. Learn the structure of the Present Perfect Passive Voice and its functions. 2. Learn to change the sentences with the Present Perfect Passive Voice into the sentences with the Present Perfect Passive Voice. 3. Learn to write sentences with the Present Perfect Passive Voice flexibly according to the context. Step 1 Observe the following sentences, then change the sentences into passive voice.He has been selected to take part in the sports meeting．(肯定句)他已被挑选出来参加运动会。The ink has not been removed from his overcoat．(否定句)墨迹还没有从他外套上去掉。
新人教版高中英语必修2Unit 3 The Internet-Listening &Speaking＆Talking教案一
Listening and Speaking introduces the topic of “ask about online habits”. Many middle school students have been surfing the Internet for many years, but what they do with the Internet and how much time they spend every day may not be very clear to themselves, nor to other students. This section allows students to investigate their peers' Internet use, which is conducive to their mutual understanding and understanding of the Internet. It can also help them reflect on their own online behavior, learn from other people's good online habits, and get rid of their bad online behavior.The listening text of this section is an investigation interview. The investigators interview specific groups with the same questions to obtain information, so as to understand their views, practices or attitudes on this issue. There are two specific questions: “how much time do you spend online every day? What do you usually do online?”. The answers of the three respondents provide rich and different information, and achieve the purpose of the investigators. The oral discourse structure of survey interviews generally includes greeting and explaining the purpose of the interview, presenting the interview questions and the respondents' answers. Listening and Talking introduces the theme of “choosing the right application ". Listening text is a conversation between Laura and Xiao Bo. In this part of listening, “oink”； “piggy bank” may cause the students' hearing comprehension limitation. Oink refers to sound word and pig's sound. So, add some oink to my piggy bank is often used to describe "making a little money".1. Guide students to understand the content of listening texts in terms of listening for definitions.2. Cultivate students' ability to define words and understand an investigation interview.
新人教版高中英语必修2Unit 4 History and Traditions-Discovering Useful Structure教案一
Step 5 Practice一、完成下列句子。1. Judy and I _______________（把车停下来(park)）in an underground car Park near Trafalgar Square, where we could ______________________(让我们的车充电（charge)).2. When we finally reached the service desk to ask for audio guides, we heard it ___________ that there were no audio guides____________(留下，剩下）.3. We__________________________（发现自己对...很惊讶）the large number of visitors and the amount of noise at the entrance of the National Gallery.4. Judy ____________________(眼神专注于） Van Gogh’s Sunflowers. It was hard to approach the painting as there were so many people around.5. She ____________________(把这幅画的复制品装箱（box)） to ensure that it was delivered safely.答案：1.had our car parked get our car battery charged 2. announced left 3. found ourselves very surprised 4. had her eyes fixed on 5. had a copy of the painting boxed二、用过去分词对下列句子进行改写。1. Loch Ness was surrounded by beautiful natural landscape, which made it look amazing.2. Carl and his friend stayed with a generous family who offered them bread with butter and honey that was homemade.3. The family’s ancestors once attended to soldiers who were wounded in the First World War.4. The young people were attracted by the legend of Loch Ness. They watched over the lake with their cameras and binoculars, which were positioned on the hill.答案：1. Loch Ness surrounded by beautiful natural landscape looks amazing.2. Carl and his friends stayed with a generous family who offered them homemade bread with butter and honey.3. The family’s ancestors once attended to wounded soldiers in the First World War.4. The young people attracted by the legend of Loch Ness watched over the lake with their cameras and binoculars positioned on the hill.
新人教版高中英语必修2Unit 4 History and Traditions-Listening＆Speaking＆Talking教案一
This unit is about history and traditions. From the opening page, we can know that this unit will introduce the history and traditions around the world. As Marcus Garvey says “A people without the knowledge of their past history, origin and culture is like a tree without roots”, it is important for students to realize the importance and value of knowing the history and traditions and their further meanings. And this part ( listening and speaking ) is divided into two parts: Part A---share views on historic sites, Part B ---talk about a visit to a historic tourist destination. By talking with a foreigner, the speakers introduce the historic attractions and their cultures. Part A is that William, a British student, who was going to visit the Confucius Temple and a Chinese student, Xiao Kong, who was going to the Confucius Temple to meet with the members of the research group, went together and exchanged their views on the Confucius Temple, Confucius, Confucius' descendants and Confucius' educational thoughts. Part B is a conversation between Xiao Yan, a youth hostel receptionist and Paul, a backpacker about the feelings and experience after visiting the Chinese famous tourist attraction Pingyao.1. Guide students to understand the content of listening texts in terms of the whole and key details; 2. Cultivate students' ability to guess the meaning of words in listening; discuss with their peers how to talk about historic spots and great person.3. Instruct students to use functional sentences of showing one’s excitement, surprise and disappointment.1. Guide students to understand the content of listening texts in terms of the whole and key details; 2. Cultivate students' ability to discuss with their peers the related topics.3. Enable students to use the functional items of showing one’s excitement, surprise and disappointment.
