Unit 4 Amazing Science-Topic 2 I'm excited about the things that will be discovered in the future.-Section C-ppt课件-(含教案+视频+音频+素材)-市级公开课-仁爱科普版九年级上册(编号：10eba).zip

Our learning goals today(1a,1b,1c) 1. In this class, well learn to use some new words and expressions : solar system, Roman, god, diameter, storm, gravity, weigh, be named after , at a distance of ，search for 2. Well learn the following sentence patterns: Its diameter is 53% as wide as that of the earth. The gravity on the surface of Mars is about two-fifths as strong as it is on earth. 倍数倍数/分数分数+ asas It takes sb. to do sth. 3. Well talk about Mars and discuss “Is Mars a good place for human beings to live ？” 4. We will improve our reading and writing abilities. Lets enjoy a short film“ The Martian ” 火星救援火星救援 Whats the movie about? Are you interested in exploring Mars? Lets talk about “ Is Mars a good place for humans to live?” Lets explore Mars. Free talk and leading in distance from the sun? color? Shape? climate? temperature ? oxygen? gravity ? Pre-reading: What do you know about Mars? diameter ? Mars is the fourth planet from the sun in our solar system. 请关注图片及所提供的情景进行单词预测请关注图片及所提供的情景进行单词预测 Pre-reading Mars It is named after Mars ,the Roman god of war. Mars the Roman god of war Pre-reading 请关注图片及所提供的情景进行单词预测请关注图片及所提供的情景进行单词预测 Mars is much smaller than the earth. Its diameter is 53% of the earths. Pre-reading 请关注图片及所提供的情景进行单词预测请关注图片及所提供的情景进行单词预测 200 kilos How much does he weigh on Mars? He weighs 80 kilos On Mars. Pre-reading 语境能更好地帮助我们理解新单词的含义语境能更好地帮助我们理解新单词的含义 During spring and summer, the strong storms can cover the whole surface of Mars. The gravity on its surface is about 40% as strong as it is on earth. Skimming for the topic sentence and the best title. 1.Can you find out the topic sentence ? What do you know about Mars? What does it look like? 2.Can you add a title to the passage ? “Mars” 中心句一般在开头或结尾中心句一般在开头或结尾;skimming 环节是在掠读中了解文章的中心意思环节是在掠读中了解文章的中心意思. While-reading Scanning for the numbers and find out what these numbers stand for? 53% 228 million 2/5 -138 - 28 0.13 % gravity oxygen diameter distance from the sun temperature While-reading Scanning scanning 环节是在跳读中寻找某些环节是在跳读中寻找某些 特定信息；特定信息； While-reading Detail- reading. write down the information about Mars. Diameter Color Shape Climate Gravity Distance from the sun 53% as wide as that of the earth red and orange a ball during spring and summer: strong storms temperature: between- 138and 28 about two-fifths as strong as it is on earth about 228 million kilometers Underline the important language points. 1.be named after 6.Its diameter is 53% as wide as that of the earth. 2.go around 3.at the distance of 4.be covered by 5. search for 7.The gravity on the surface of Mars is about two-fifths as strong as it is on earth. Post-reading 倍数倍数/分数分数+ as as The green apple is two-thirds as big as the red one. two thirds, as big as about five times , as tall as The tallest person in the world is about five times as tall as the shortest person. Post-reading Discuss “What have we learnt about Mars?” and lets draw a mind map. Mars What does it look like? Is it a good place to live? Its diameter Distance from the sun colorshape A good climate? Proper temperature? Enough oxygen? Strong gravity ? Post-reading Writing practice: Is Mars a good place to live? 1. Its color and shape. 2. Its diameter and its distance from the sun. 3. Its climate. 4. Its temperature. 5.Its gravity. 6.Its oxygen. Body Beginning Ending What do you know about Mars? Is it a good place for us to live? In my opinion, Mars is (not) a good place for us to live. Post-reading Summary games. Task 1: According to the information about Mars, retell 1a.(4分分) Diameter Color Shape Climate Gravity Distance from the sun 53% as wide as that of the earth red and orange a ball during spring and summer: strong storms temperature: between- 138and 28 about two-fifths as strong as it is on earth about 228 million kilometers Task 2 Discuss the crazy questions and show your reasons.(4分）分） Does Mars have a good climate for Plants? Is Mars a useful place to dry fruit? Is Mars a comfortable place for heavy people? Task3 Please discuss the following questions? (4分）分） Imagine: What clothes do we wear on Mars? What food and drinks can we have? What transportation do we use? Summary We learn: 1. Some words: storm, weigh, journey. 2. Some phrases: be named after, （分数或倍数）（分数或倍数）as as , at a distance of, search for 3. Some sentences: (1) Its diameter is 53% as wide as that of the earth. (2) The gravity on the surface of Mars is about two-fifths as strong as it is on earth. (3) It takes a spaceship about eight months to reach We can : 1. Talk about something more about Mars. 2. Write a passage about Mars. Read 1a. Review the useful expressions and key sentences which we learned today. Finish Section C in your workbook. Write a small passage “Is Mars a good place for humans to live?” Preview 3a and 3b of Section C. Thank you Material analysis 本节课是九年级第四单元第二话题的第三课时。主要活动是 1a，1b,1c。1a 是承接 Section A 和 Section B 设计的。因为 Section A 和 B 的内容都和 Mars 有关，学生已经对 火星产生了浓厚的兴趣。 “宇宙”属于“自然”的一部分。而“自然”是课程标准要求的 话题。1b 属于理解型任务，学生如果能独立完成表格，也就说明他们已经掌握了 1a 的内 容。学生通过学习 1a 之后，能对 1C 所给的问题作出正确的判断。学生通过学习本节课， 对火星有大致的了解，有助于激发学生探索宇宙的好奇心。2，3a 和 3b 三项任务留作下 一课时完成。 .Teaching aims and demands 1. Knowledge objects. After this class, Ss will be able to: 1). Learn to use some new words and expressions: solar system, Roman, god, diameter, storm, gravity, weigh, be named after sb., asas, go around, at a distance of , be covered by, It takesto do sth. 2).Learn the following sentence patterns: Its diameter is 53% as wide as that of the earth. The gravity on the surface of Mars is about two-fifths as strong as it is on earth. It takes a spaceship about eight months to reach Mars from the earth when the two planets are closest to each other. 3).Know sth. about Mars and talk about “Is Mars a good place for human beings to live ？” 4).Go on learning Passive Voice. 2. Ability objects. After the class: 1).Ss can communicate with each other about the information of Mars. 2).They can improve their reading ability and know some reading strategies 3).They can write a passage about Mars. 3. Emotion objects (1) Students attention and interest in amazing science will be aroused. (2) Their team spirit will be trained by working in groups. . Teaching importance Ss will get more information about Mars and try to discuss if Mars is a good place to live. They will learn to use some sentence patterns. 倍数/ 分数+as +adj. +as They will improve their reading and writing abilities and know about some reading strategies. .Teaching difficulties Learn to draw a mind map about Mars and try to use it to write a small passage. .Teaching methods 1. Learner-center teaching method 2 2. Task-based teaching method 3. Communicative teaching method . Learning methods 1. Learning in small groups. 2. Learning by doing 3. Learning by using. .Teaching procedures Teaching steps Teachers activity Students activity Purpose of designing 活动准备活动准备 Greetings and show learning goals today. 1. Greet with Ss. 2. Play an English song for Ss to listen. 3. Show Ss the learning goals today. 1. Ss enjoy the song. 2. Ss know about the learning goals today. 通过英语歌曲 欣赏，营造良 好的英语学习 氛围，使同学 们快速进入英 语学习状态,让 同学们明确本 节课的学习目 标。 活动一活动一 Free talk and Leading in. 1. Play a short English film“The Martian”for Ss to enjoy. 2. Lead Ss to talk about the movie. 3.Lead to the topic: “What do you know about Mars?” and“Is Mars a good place for humans to live?” Ss enjoy the short film and talk about it freely. 通过火星救 援短片欣赏， 吸引同学们注 意力，激起他 们的学习热情， 通过谈论电影， 激活文本阅读 背景，水到渠 成地导出 “Mars”这个 话题。激发孩 子们的学习热 情，引导同学 们参与讨论， 有意识的发展 同学们的自主 学习能力。 活动二活动二 Pre-reading 1.Show students some pictures and discuss “What do you know about Mars?”and “What points 1. With the teachers help, discuss some information about Mars. 2. Using the pictures, learn some new words 根据图片，引 导同学们学习 新单词，扫清 词汇障碍，启 发学生思维， 为后面的短文 3 do we think about if we want to talk about a planet?” 2. Lead them to learn some new words: solar system, Roman, god, diameter, storm, gravity, weigh. and expressions.阅读做好铺垫。 活动三活动三 While- reading. 1. First reading: The teacher leads Ss to read 1a quickly for the first time and try to find out the topic sentence of the passage, then encourages them to add a title to the passage. 2.Second reading: The teacher asks the students to read 1a for a second time and discuss the following crazy questions. (1) Can we tell which planet is Mars easily? Why? (2)Does Mars have a good climate from plants? Why? (3) Is Mars a comfortable place for heavy people? (4) How long does it take a spaceship to reach from the earth to Mars when they are closest? 3. Third reading Read 1a for a third time and write down the information about Mars and finish 1b. 1.Read 1a quickly and find out the topic sentence of the passage. 2.Rread 1a for a second time and answer the crazy questions. 3.Read the passage for a third time and fill in the blanks in the table of 1b. 引导同学们阅 读第一遍，让 他们先从整体 上感知短文的 主要内容，找 出主题句，给 文章添加一个 合适的标题， 然后通过 scanning 第二 遍细读短文， 让同学们回答 问题，通过 detail reading,细 读短文第三遍， 完成表格，培 养同学们获取 信息的能力和 发现思考问题 的能力。 活动四活动四 Post -reading 1. The teacher makes a summary to explain the key points and difficult points to the students. (1) 倍数(分数 )+ as +adj.+as 的几倍 (2)go around 绕着转 (3) at a distance of 以 距离 (4)search for 寻找,搜查,搜寻 1 Students underline the important language points in their books and make some notes. Learn and summarize difficult points. 2. Students try to retell the passage according to the key words. 3. Students draw a mind map with the help of 老师为同学们 解答疑难问题， 做到难点突破， 同时，引导同 学们根据关键 词，复述课文， 进一步巩固短 文内容,并根据 短文内容，画 出思维导图。 4 2. The teacher asks the students to retell the passage according to the key words shown on the screen. 3. Let Ss discuss “Is Mars a good place for human beings to live?” and help Ss draw a mind map. the teacher. 活动五活动五 Practice and Production 1. Summary games： Task1：Ask the Ss to match the numbers with the information“What do the numbers stand for ?” Task2：Let Ss make sentences according to the key words and pictures. Task3: Let Ss fill the blanks of a passage. Task 4: Lead Ss to complete several sentences. 2. Lead students to write a passage about Mars according to the mind map. Walk around the classroom, help them if necessary. 6. Share the excellent compositions. 1. Ss play the summary games and finish the tasks in groups. 2.Ss collect the information about Mars and discuss whether Mars is a good place to live. 3.Write a passage about Mars and show their ideas if Mars is a good place for humans to live. 引入竞争机制， 设计了四项不 同的任务，让 各小组完成， 对学习目标进 行检测。把本 节课推向高潮。 通过大量的输 入过渡到产出 环节，引导同 学们写一篇关 于介绍火星或 谈论火星是否 是一个适合人 类生活的短文， 提高同学们综 合运用英语的 能力。 活动六活动六 Project Ask the students to discuss “What clothes do they wear on Mars? What food and drinks can they have? What transportation do they use?” in groups . Then ask them to get ready to report in the next class. Ss use their knowledge of Mars to discuss the crazy questions in groups and prepare for the report the next day. 引导同学们用 他们已有的关 于火星方面的 知识对火星上 生活将会遇到 的问题进行讨 论，并准备好 在下一节课进 行汇报，发展 同学们的自主 学习能力，为 他们的终身英 语学习奠定基 础。 5 Homework: （1）Read 1a. （2）Review the useful expressions and key sentences which we learned today. （3）Finish Section C in your workbook. （4）Write a small passage “Is Mars a good place for humans to live?” （5）Preview 3a and 3b of Section C. . Blackboard designing. Unit 4 Amazing Science Topic 2 Im excited about the things that will be discovered in the future. Section C Mars Mars is the fourth planet of the solar system .It goes around the sun . its shape, color, distance from the sun, . In my opinion, Mars is (not) a good place for us to live. 1.solar system 2. Roman god 3. diameter 4.storm 5.gravity 6.weigh . Teaching Reflection