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人教版高中政治必修3在文化生活中选择说课稿
一、教材分析文化市场和大众传媒的发展，给我们的文化生活带来了许多可喜的变化。但是，文化市场的自发性和传媒的商业性也引发了令人忧虑的现象。文化生活有“喜”也有“忧”，让我们欢喜让我们忧。面对形式多样的文化生活，置身于文化生活的海洋之中，在文化生活中如何选择、怎样作出正确的选择是亟待向学生解决的问题。二、学情分析高二学生处于世界观、人生观和价值观形成的关键时期，身心迅速发展，自我意识和独立性较强，社会公共生活空间范围越来越大，并且开始理性地思考社会和人生的重大问题，他们可塑性强，但情绪仍然不稳定，有多变性，容易冲动或偏激，迫切需要提升思想意识，加强方法论的指导，使其在纷繁复杂的文化生活中能够进行正确的判断与选择。如果我们的学生不能把握正确的航向，是非观念模糊，良莠不分，就会陷入落后文化和腐朽文化的泥沼而不能自拔，甚至造成无法挽回的恶果。
人教版高中政治必修4价值判断和价值选择说课稿（一）
2．讲授新课：（约35分钟）结合教材内容重难点和学生实际，在讲课过程中，我对教材内容的顺序进行了重组，把教材内容由原来的两大部分划分为三大部分（第一，价值判断和价值选择的含义和关系；第二，价值判断和价值选择的特征；第三，做出正确的价值判断和价值选择的标准）。这一调整更符合学生的认知结构，便于从整体上把握课本内容。在讲授过程中，我充分利用课本素材——探究活动为课堂教学服务，此外，利用学生的生活与体验，挖掘实例，如结婚要礼由以前的旧三件到现如今的转变，引导学生理解价值判断和价值选择的社会历史性特征，以以《观祈雨》、以医生、艺术家、老学究对于《断臂的维纳斯》这个雕塑的不同见解、以新鲜实例韩国沉船事件和范跑跑为例启发学生价值判断和价值选择具有主体差异性特征以此突破难点，最后通过设疑、对比、追问正确的价值判断和价值选择的标准来深化主题，突出重点。3．课堂小结：（约2分钟）强化认识
人教版高中政治必修4认识运动把握规律说课稿（二）
归纳：第一句正确。承认运动的绝对性。第二句错误。否认相对静止的存在。3.课堂小结，强化认识(2—3分钟)课堂小结，可以把课堂传授的知识尽快地转化为学生的素质；简单扼要的课堂小结，可使学生更深刻地理解政治理论在实际生活中的应用，并且逐渐地培养学生具有良好的个性。人类社会是物质世界长期发展的产物，世界的本质是物质，世界的真正统一性就在于它的物质性，物质又是运动的，运动的形式多种多样，运动又是物质的运动，物质和运动是不可分割的，运动和静止既有区别又有联系，物质的运动是绝对的、无条件的和永恒的，而静止是相对的、有条件的和暂时的。4.板书设计我比较注重直观，系统的板书设计，还及时地体现教材中的知识点，以便于学生能够理解掌握。
人教版高中政治必修4认识运动把握规律说课稿（一）
（7）精讲即精讲点拨，释疑解难。现代教育理论一方面强调学生学习的主动性；另一方面也重视发挥教师的积极性。课堂活动的主动性、合理性、有效性的实现还有赖于教师的讲。精讲就要求教师的讲授内容精要，分析精辟，语言精彩、节奏精练、点拨精当。从内容上看，本节课精讲主要有三处：一、运动的含义；二、运动是物质的根本属性；三、静止是运动的特殊状态。2、教学手段多媒体辅助教学。六、教学过程第一步：创设情景，用“谜语”导入新课。使学生置身于教学内容的情景之中，产生继续探究的强烈愿望。第二步：运用直观、形象的画面将教学目标问题，唤起学生参与欲望，驱使学生去思考，去自读。第三步：引导学生相互讨论，实现学生之间的横向交流。第四步：教师依据反馈信息，给予重点讲授、提示点拨、搭桥铺路。第五步：设置故事型的模拟法庭，开展讨论，在高潮中结束新课。第六步：总结概括，深化知识，形成网络。
人教版高中政治必修4价值判断和价值选择说课稿（二）
2、讲授新课：在讲授新课的过程中，我突出教材的重点，明了地分析教材的难点。还根据教材的特点，学生的实际、教师的特长，以及教学设备的情况，我选择了多媒体的教学手段。这些教学手段的运用可以使抽象的知识具体化，枯燥的知识生动化，乏味的知识兴趣化。还重视教材中的疑问，适当对题目进行引申,使它的作用更加突出，有利于学生对知识的串联、积累、加工，从而达到举一反三的效果。3、课堂小结，强化认识：课堂小结，可以把课堂传授的知识尽快地转化为学生的素质；简单扼要的课堂小结，可使学生更深刻地理解政治理论在实际生活中的应用，并且逐渐地培养学生具有良好的个性。4、板书设计我比较注重直观、系统的板书设计，还及时地体现教材中的知识点，以便于学生能够理解掌握。
新人教版高中英语必修3Unit 1 Festivals and celebrations-Discovering Useful Structure教学设计
4.That was an experience that frightened everyone. →That was _____________________. 答案：1. taking 2. being discussed 3. in the reading room 4. a frightening experienceStep 6 The meaning and function of V-ing as the predicative动词-ing形式作表语，它通常位于系动词后面，用以说明主语“是什么”或“怎么样”一种表示主语的特质、特征和状态, 其作用相当于形容词; 另一种具体说明主语的内容, 即主语等同于表语, 两者可互换。The music they are playing sounds so exciting. 他们演奏的音乐听起来令人激动。The result is disappointing. 结果令人失望。Our job is playing all kinds of music. 我们的工作就是演奏各种音乐。Seeing is believing. 眼见为实。Step 7 Practice1. It is ________(amaze) that the boy is able to solve the problem so quickly.2. Buying a car is simply _______(waste) money. 3. Please stop making the noise—it’s getting ________(annoy). 4. complete the passage with the appropriate -ing form.La Tomatina is a festival that takes place in the Spanish town Bunol every August. I think many food festivals are __________ because people are just eating. however, this festival is _________ because people don't actually eat the tomatoes. Instead, they throw them at each other! the number of people ________ part in this tomato fight, can reach up to 20,000, and it is a very __________ fight that lasts for a whole hour. The _______ thing is how clean Bunol is after the tomatoes are washed away after the fight. this is because the juice form tomatoes is really good for making surfaces clean!答案：1. amazing 2. wasting 3. annoying4. boring interesting taking exciting amazing
新人教版高中英语必修3Unit 1 Festivals and Celebrations-Listening &Speaking＆Talking教学设计
The theme of this section is “Talk about festival activities and festival experiences”.Festival and holiday is a relaxing and interesting topic for students. This part talks about the topic from the daily life of students’. In the part A ---Listening and Speaking, there are three conversations among different speakers from three countries(Japan, Rio and China), where the speakers are participating in or going to participate in the festivals and celebrations. So listening for the relationship among them is a fundamental task. Actually, with the globalization and more international communication, it is normal for Chinese or foreigners to witness different festivals and celebrations in or out of China. In the Conversation 1, a foreign reporter is interviewing a Japanese young girl who just had participated in the ceremony of the Coming-of-Age Day on the street and asking her feeling about the ceremony and the afterwards activities. Conversation 2, Chinese girl Li Mei is witnessing the Rio Carnival for the first time, and her friend Carla gives her some advice on the costumes which enables her to match with the carnival to have a good time. Conversation 3, a Chinese guide is showing a group of foreign visitors around the Lantern Festival and introducing the customs of the festival to them. The three conversations have a strong vitality and insert the festival and cultural elements from different countries. So perceiving the festivals and cultures from different countries is the second task. At the same time, the scripts also insert the targeted grammar --- v-ing as attributive and predicative, which students can perceive and experience in a real context and make a road for the further study. That is the third task. In the Part B--- Listening and Talking, the theme is “Talk about festival experience”, which is the common topic in our daily conversations. During the conversation, Song Lin, a Chinese student, asked Canadian friend Max about how to spend Christmas. In the conversation, Song Lin talked about experience and the feelings during the Chinese Spring Festival, during which there are not only some enjoyable things but some unpleasant things. After the listening, perhaps students find there are some similarities between Christmas and the Chinese Spring Festival as there are some differences in the origins and celebrations. For example, people always visit friends and relatives, decorate their houses, have a big dinner together, chat and give presents to each other.
新人教版高中英语必修3Unit 1 Festivals and Celebrations-Reading for writing教学设计二
Step 3 Analyzing article structureActivity 31. Teachers raise questions to guide students to analyze the chapter structure of this diary and think about how to describe the festival experience. (1)What should be included in the opening/body/closing paragraph(s)?(2)How did the writer arrange his/her ideas?(3)What kind of interesting details did the writer describe?(4)How did the writer describe his/her feelings/emotions during the event?2. Students read and compare the three sentence patterns in activity 2. Try to rewrite the first paragraph of the diary with these three sentence patterns. After that, students exchange corrections with their partners. Such as:●This was my first time spending three days experiencing the Naadam Festival in China’s Inner Mongolia Autonomous Region and it was an enjoyable and exciting experience. ●I'll never forget my experience at the Naadam Festival because it was my first time to watch the exciting Mongolian games of horse racing, wrestling, and archery so closely. ●I'll always remember my first experience at the Naadam Festival in China’s Inner Mongolia Autonomous Region because it was so amazing to spend three days witnessing a grand Mongolian ceremony. Step 4 Accumulation of statementsActivity 41. Ask the students to read the diary again. Look for sentences that express feelings and emotions, especially those with the -ing form and the past participle. Such as:● …horse racing, wrestling, and archery, which are all so exciting to watch. ● some amazing performances● I was surprised to see…● I was a little worried about. . . ● feeling really tiredOther emotional statements:●I absolutely enjoyed the archery, too, but the horse races were my favourite part. ●I'm finally back home now, feeling really tired, but celebrating Naadam with my friend was totally worth it. ●He invited me back for the winter to stay in a traditional Mongolian tent and cat hot pot. I can’t wait!2. In addition to the use of the -ing form and the past participle, the teacher should guide the students in the appreciation of these statements, ask them to memorize them, and encourage them to use them reasonably in writing practice.
新人教版高中英语必修3Unit 1 Festivals and Celebrations-Reading for Writing教学设计一
The topic of this part is “Write about your festival experience”.During the Listening and Speaking and Talking, students are just asked to say out their festival experiences such as the Spring Festival, Mid-autumn Day, but this part students will be asked to write down their own festival experiences. During the reading part, it introduces the Naadam Festival in Inner Mongolia Autonomous Region, which can give students a good example to imitate. Students not only learn the festival, but touch and feel the Inner Mongolian’s character, the spirit and cultural atmosphere, which can help students form the cultural awareness and learn to enjoy and value the diversity of Chinese culture.Concretely, the dairy tells the experience that the author spent the Naadam Festival in Inner Mongolia Autonomous Region with his/her friend. The structure is clear. In the opening paragraph, it introduces the topic of the Naadam Festival and the whole feeling. Then it introduces the items of the festival like the ceremony, wrestling and horse racing. Finally, it summarizes this experience. Because this part is a travel journal, we must guide students pay more attention to these details: 1. use the first person. 2. use the past tense to tell the past thing and use the present or future tense to describe the scenery. 3. use the timeline to tell the development. 4. be careful for the author’s psychology, emotion and feeling, etc.1. Read quickly to get main idea; read carefully to get the detailed information about Naadam Festival.2. Learn the structure of the reading article and language.3. Write an article about a festival experience4. Learn to use the psychology, emotions and feeling in the writing.1. Write an article about a festival experience.2. Use the structure of the reading article and language.
新人教版高中英语必修3Unit 1 Festivals and Celebrations-Reading and Thinking教学设计
The topic of this part is “Discover the reasons for festivals and celebrations.The Listening & Speaking & Talking part aims at talking about the experiences and feelings or emotions about the festivals and celebrations. This section aims at detecting the reason why the people celebrate the festivals, the time, the places, the types and the way of celebrations. It also explains why some traditions in the old celebrations are disappearing, like the firecrackers in the big cities and some new things are appearing like the prosperity of business or commerce. 1. Students can talk about what festivals they know and the reasons and the way of celebrating them.2. Students should learn the reading skills such as the headline and get the topic sentences, the structures of articles.3. Students can understand the past, the present situation of some festival around the world and why there are some changes about them. 4. Students can have the international awareness about the festivals.1. Students should learn the reading skills such as the headline and get the topic sentences, the structures of articles.2. Students can understand the past, the present situation of some festival around the world and why there are some changes about them.Step 1 Lead in---Small talkWhat festival do you like best ? Why ?I like the Spring Festivals because I can set off the fireworks, receive the lucky money and enjoy the Gala with my families.Step 2 Before reading---Pair workWhy do people celebrate different festivals ?The Spring Festivals is to celebrate the end of winter and the coming of spring and new life.The Mid-autumn Day is to celebrate the harvest and admire the moon.
新人教版高中英语必修3Unit 2 Morals and Virtues-Reading and Thinking教学设计
The topic of this part is “Learn to make choices in life”.The Listening & Speaking & Talking part aims at the moral dilemmas, and this part is about making choices in life. The heroin is Lin Qiaozhi, a famous medical scientist, made a great contribution to our country’s medical care. Most importantly, her life experience can inspire our students whether in studying or the development of career. she had moral dilemmas and life choices, which are similar to the students who will step into society. Besides, Lin has quite good virtues like kindness, self-improvement, insistence, job-loving , generosity and responsibility, which is worth being learned.Concretely, this article is a biography about Lin Qiaozhi. The article tells her whole life according the timeline, among which the life choices is emphasized. For example, whether married or chased her dream, returned home or stayed abroad, family or public, her choices all reflected her faith, spirit, responsibility and devotion.1. Fast reading to get the detailed information about Lin Qiaozhi; careful reading to do the deductive information.2. Learn the reading skills--deductive judgement according the context.3. Study the structure features and language features. 4. Communicate about Lin’s life choices and reflect their own life choices.1. Learn the reading skills--deductive judgement according the context.2. Study the structure features and language features.3. Communicate about Lin’s life choices and reflect their own life choices.Step 1 Lead in---Small talkWhat are some important life choices?Importance choices: university study, jobs and marriage partners. Because they can determine our future.
新人教版高中英语必修3Unit 2 Morals and Virtues-Discovering Useful Structure教学设计
1. 表示时间。Hearing these stories, I’m skeptical about the place. = When I heard these stories. . . 2. 表示原因。Not knowing his address, I can’t send this book to him. = Because/Since/As I don’t know his address. . . 3. 表示结果。His father died, leaving him a lot of money. =. . . and left him a lot of money4. 表示条件。Going straight down the road, you will find the department store. = If you go straight down the road. . . 5. 表示让步。Being tired, they went on working. =Although they were tired. . . 6. 表示行为方式、伴随情况或补充说明。He lay on the grass, staring at the sky for a long time. =. . . and stared at the sky for a long time注意：非谓语动词作状语时, 如所提供的动词不能和句子中的主语保持一致, 动词-ing形式必须有自己的逻辑主语, 通常由名词或代词来担任, 这就是独立主格结构。The last bus having gone, we had to walk home. (having gone的逻辑主语是the last bus, 而不是we)Weather permitting, the football match will be played on Friday. (permitting的逻辑主语是time, 而不是the football match)Step 7 Practice1. ________(study) hard, you are sure to get first prize. 2. People use plastic in their daily life, _______(leave) large amounts of waste. 3. ________(work) hard at your lessons, you are to succeed. 4. The old man, ____________(work) abroad for twenty years, is on the way back to his motherland. 5. ______________(finish) his homework, he was playing on the playground. Answers: 1. Studying 2. leaving 3. Working 4.having worked 5. Having finishedStep 8 HomeworkFinish the homework on Page 22.
新人教版高中英语必修3Unit 2 Morals and Virtues-Listening &Speaking＆Talking教学设计
Example:One day, a poor boy who was trying to pay his way through school by sending newspapers door to door found that he only had one dime(一角）left. He was so hungry that he decided to beg for a meal at the next house.However, he lost his nerve when a lovely young woman opened the door. Instead of a meal he asked for a drink of water. She thought he looked hungry so she brought him a large glass of milk. He drank it slowly, and then asked, “How much do I owe you?” “You don’t owe me anything,” she replied, “Mother has taught me never to accept pay for a kindness.” “Then I thank you from the bottom of my heart.” With these words, Howard Kelly left that house.Years later the woman became badly ill and was finally sent to the hospital in a big city. Dr. Howard Kelly, now famous, was called in. When he heard the name of the town she came from, a strange light filled his eyes. Dressed in his doctor’s clothes, Dr. Kelly went into her room and recognized her at once. From that day on, he gave special attention to her, and decided to do his best to save her life.At last the woman was saved. Dr. Kelly asked the business office to pass the final bill to him. He looked at it and then wrote something on the side. The bill was sent to the woman’s room. She was afraid to open it because she was sure that it would take the rest of her life to pay for it off. Finally she looked, and the note on the side of the bill caught her attention. She read these words: “Paid in full with a glass of milk, Dr. Howard Kelly.” Tear of joy flooded her eyes.
新人教版高中英语必修3Unit 2 Morals and Virtues-Reading for Writing教学设计
1. 这个寓言是一个关于一位国王古寓言。 The fable is an old fable about a king.2.作者用这个故事让读者对于社区的问题负有个人责任的必要印象深刻。The author used the story to impress upon readers with the need to take personal responsibility for problems in the community.3. 这个故事十分成功的实现了它的目的。The story was quite successful in achieving its purpose.Step 7 WritingPlease write a review of the story according the outline above.The fable is an old fable about a king who thought his people are lazy, so he put a large stone in the middle of the road and hides and waited to see if anyone will try to move it.The author used this story to impress upon readers with the need to take personal responsibility for problems in the community. The story was quite successful in achieving its purpose, and I liked it because it had a clear moral.However, while the moral of the story is clear, the actions of the king seemed pointless to me, because none of the characters in the story learnt anything. For this reason, I think there are better stories that can be used to impress upon people with the need for personal responsibility.Step 8 Pair workExchange drafts with a partner. Use this checklist to help your partner revise his/her draft.1. Does the writer give a short description of the story ?2. Does the description include the most important details of the story ?3. Does the writer give his or her opinion about the character or their actions ?4. Is the review well-organised ? 5. Does the writer use the -ing form as the adverbial correctly in the writing ?6. Are there any grammar, spelling, or punctuation errors ?Step 9 HomeworkPut up your revised draft in the classroom or read it to your class.
人教版高中语文必修2《孔雀东南飞并序》说课稿2篇
4、问题策略。引导学生提出问题、提出有价值的问题，是探究性学习的难点，也是课堂教学最有活力、最具创造力的亮点。我设计的课堂问题有：诗歌着力赞颂刘焦坚贞爱情和反抗精神，但他们许多地方却表现的非常顺从呢？焦母如此专横固执，为什么在焦刘悲剧发生后又要求合葬呢？这些由诗句生发的问题，会深深打动作学生的心灵，诱导学生去读诗，去背诗，去体味诗。5、手段方法。借助多媒体课件10个幻灯片、课文音频诵读资料、课文相关的文字资料，采用诵读法、讨论法、探究法等教学方法进行本课教学。6、板书设计：板书是教学内容的浓缩。根据教学重点和本诗特色，我的板书分预设和生成两块。预设板书设计有文章标题、情节结构、艺术特色三部分。文章标题孔雀东南飞情节结构被遣——誓别——抗婚——殉情——化鸟艺术手法①人物对话的个性化②铺陈排比的手法③起兴和尾声
人教版高中语文必修2《归园田居（其一）》说课稿2篇
我还运用多媒体投影幻灯片给学生设置两组相互对照的选项，让同学们根据幻灯片选择：你赞同每组中那一种价值取向？一组是功名、进取、高官、厚禄与自然、隐逸、本性、自由。另一组是科学、发展、强大、集中与诗意、和谐、柔弱、个体。经过合作探究，讨论解答，学生结合陶渊明的归隐对第一组讨论探究的应该比较容易，而对第二组的理解探究会出现一定的难度，教师可以就学生的情感价值观方面适当的给予点拨引导：幻灯片上面的第二组文字通过对比，给我们提供了两种价值取向，你是要通过科学、发展、强大和集中来实现遨游太空等童话，那就势必会令我们放弃了诗意的童话，只关注工业的发展，城市面积的扩大，乡村田园必将减少 。你还是要维护生态平衡，保护一切的多样性呢？我认为诗意永远要领导科学，梅罗和陶渊明就共同表达了八个字——诗意、和谐、柔弱和个体。你的本性在田园，当我们身心疲惫时，我们都需要一个心灵的家园，所以我希望大家无论做何选择都能够守住我们那片宁静、祥和的心灵家园。
人教版新课标高中物理必修2平抛运动说课稿2篇
（5）高度不同，对平抛运动距离有何影响，是否因为高度减小后下落时间减小，所以要增大速度才能达到相同的距离？（教学实践证明，这种想法在学生比较多见。已经不自觉的沿用了自由落体运动的规律，又隐隐有运动等时性的痕迹。应引导学生这一结果还需实验验证。）教师的引导：其实，我们所提出的看法都跟平抛运动的规律有关系。那么平抛运动究竟有怎样的规律呢？以前学过的直线运动知识还能用于今天的内容吗？由此逐步使学生意识到分析平抛运动须采用运动合成与分解这一方法。三、实验验证自主探究（15分钟） 物理是实验科学，多媒体教学不能代替实验。本教学设计的第三个环节是实验验证，鼓励学生自主探究。引导学生根据自己的猜想（实验目的）设计实验进行验证。（1）介绍手持式平抛竖落仪，引导并小结实验要领：听两小球下落声音判断其下落时间。体会合运动和分运动是等时的。
人教版新课标高中物理必修2万有引力定律说课稿2篇
学生中存在这样的问题：既然宇宙间的一切物体都是相互吸引的，那么为什么没有吸引到一起？为了解决这个问题，安排了例题2例2、两物体质量都是1kg，相距1m，它们间的万有引力是多少？通过本题，让学生认识到一般物体间的引力极小，不用考虑。那么，质量很大的天体为什么没被吸引到一块？从而引出下节课题。4.课堂小结：本节课，从天体运动出发，通过推理证明，形成理性认识，再结合例题习题使学生的理性认识再反馈到具体事实。形成实践-理论-实践的认知循环，顺应了认知规律.。本共设计了很多问，能让学生想的尽量让学生想、能学生说的尽量让学生说、能让学生做的尽量让学生做，全面发展学生的各方面能力。再通过作业和探究性课题使学生的思维活动在时空上得以延续。5.布置作业：布置作业时刻意安排引入：万有引力、重力、向心力、三者的联系，通过引导学生对比结果，从中发现问题：万有引力与重力向心力的关系与区别，为下节知识的难点突破作好了铺垫。
人教版新课标高中物理必修2追寻守恒量—能量说课稿2篇
［小结］师：下面同学们概括总结本节所学的内容。请一个同学到黑板上总结，其他同学在笔记本上总结，然后请同学评价黑板上的小结内容。 （学生认真总结概括本节内容，并把自己这节课的体会写下来、比较黑板上的小结和自己的小结，看谁的更好，好在什么地方。） 生：本节课我们通过伽利略理想斜面实验，分析得出了能量以及动能和势能的概念，从能量的相互转化角度认识到，在动能和势能的相互转化过程中，能的总量保持不变，即能量是守恒的。通过这节课的学习，使我们建立起了守恒的思想。 点评：总结课堂内容，培养学生概括总结能力。 教师要放开，让学生自己总结所学内容，允许内容的顺序不同，从而构建他们自己的知识框架。［布置作业］课后讨论 P3“问题与练习”中的问题。［课外训练］以竖直上抛的小球为例说明小球的势能和动能的转化情况。在这个例子中是否存在着能的总量保持不变？
人教版新课标高中物理必修2宇宙航行说课稿2篇
了解了第一宇宙速度及其意义之后，继续提出问题，让学生思考：如果卫星的发射速度大于第一宇宙速度7.9km/s ，会出现什么情况呢？先让学生们大胆猜想，然后再向学生们介绍 卫星发射速度大于第一宇宙速度后的几种可能情况，引出第二宇宙速度和第三宇宙速度，让学生对第二、第三宇宙速度及其意义做定性了解。并通过演示Flash课件，帮助学生理解、加深学生印象。在学生对人造卫星的原理及发射卫星的速度条件有了初步了解后，接下来引导学生对卫星的运动规律作进一步的探索。实际上卫星并不是沿地表水平发射的，而是用火箭多次加速送到一定的高度的轨道后，再沿以地心为圆心的圆周的切线运行的。让学生继续深入思考：卫星在不同高度绕地球运行时的速度怎么求呢？将卫星送入低轨道和高轨道所需的速度都一样么？如果把不同轨道上的卫星绕地球的运动都看成是匀速圆周运动，引导学生利用已学的万有引力和圆周运动的相关知识，探究卫星绕地球的运行规律。