资源简介

U4 Scientists who changed the world
Welcome to the unit 教案
教材分析：
单元导入呈现的是一段关于袁隆平和霍金的介绍，其中包括生平和重要研究成果等。通过视频内容和课堂提问激发学生的学习兴趣，拓展学生们的知识面。通过讲解名人名言及从文本延伸出讨论内容，激活学生已知的科学家信息及背景知识，并通过拓展问题的讨论增加学生对科学家追求真理精神的感知。
教学策略与设计说明：
采用任务型教学法(Task-based language teaching)，布置活动任务，设置活动目的，引导学生完成相关任务，达成各教学步骤设计目的。
教学目标：
在本课学习结束时，学生能够：
语言能力上，通过视频任务，锻炼学生获取信息技巧，积极讨论视频内容，提高学生口语表达能力。
思维品质上，拓展学生对于科学家的认知，激活学生已知信息，辩证思考科学家追求真理的精神。
文化品格上，通过总结已知的科学家信息，提高学生增强国家认同，鉴定文化自信。
学习能力上，懂得运用文本信息，习得描述网络产品的内容，提高语言能力。
教学重点：
激活学生已知信息，引起学生对于本单元内容的兴趣。
教学难点：
活跃课堂氛围，引导学生获得文本中的信息点，初步了解本单元主题。
教学资源：
教材、多媒体课件、黑板与粉笔。
教学过程：
步骤 教学活动 设计意图 时间与模式
Step 1 Lead in: The teacher gets students involved in the learning mood by asking the following questions related to “scientists” and their daily life by asking two questions. 1. What was your dream occupation in your childhood [T leads Ss to recall memory about their respect for different occupation, especially scientists.] 2. What are your first impression of scientists [after Q1, Ss think the reason and their impression of scientists. T shows pictures of Yuan Longping and Hawking for leading in next task] 利用生活场景，创设互动情境，拉近沟通距离，激发学习兴趣的同时，开发话题资源，为单元学习做好准备。 5’ CW/GW
Step 2 Lead in: T shows a proverb from Irving Langmuir and asks Ss: How do you feel about the saying Alternatively, T can highlight “curiosity” and “truth” for asking Ss to thinking what they represent. Alternatively, T can ask why motivation is important for scientists. Then, T introduces Irving Langmuir. 理解名言背后的中心思想，开发学生对主题的认识和见解，讲解名人事迹，拓展思维意识。 5’ GW
Step 3 Welcome to the unit: T asks “Do you know some stories of the two scientists ” and shows two pictures of them (Yuan and Hawking) for preparing the video task. Next, T needs to analyse each blank and check the answers. Then, T highlights the famous achievements of them. If possible, T can play short video. 观看视频，归纳其主要内容并有策略地提取细节信息，掌握“看”的语言技能，激发学生输出动机。通过观看短视频，趣味性的加强对人物成就的理解，联动科学学科知识，提高学习兴趣。 10’ CW/IW
Step 4 Welcome to the unit: T asks two questions: 1. What else do you know about the two scientists in the video [T shows some key aspects Ss may know about] 2. What other great scientists do you know of [T can remind Ss to open their science textbook to find out their scientific theory or scientists they are interested in] 引导学生回顾总结，加深对科学家精神和事迹的回顾，激发已知，进行语言输出。 5’ CW
Step 5 Discussion: T asks two more questions for concluding the main contents of the lesson. 1. What can we learn from these great scientists [improve topic vocabularies and consolidate the content Ss have learnt] 2. Do you want to be scientist now [link to Ss’ daily life and experience and improve their language skill. T encourages Ss to express their own ideas] 引导学生再认与再现。通过对问题的思考与讨论，拓宽学生思维的深度与广度，从而提升语言运用能力。 5’ CW
Step 6 Homework Search info about your favourite scientists (famous work, experience, background info…) 巩固新知，提高自主学习能力 1’
备注：
Ss: Students T: Teacher
IW: Individual work GW: Group work CW: Class work
教学反思：
学生通过本课时学习，能否初步认识单元主题，感受科学家探索科学真理的精神。
学生通过本课时学习，能否理解视频内容，拓展思考科学家经历。
【同步PPT及其他配套资源见贝壳网优课大师或备课资源页面】

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