高中英语外研版 (2019)必修 第三册Unit 3 The world of science教案及反思
展开Unit 3 The world of Science Using Language 1:Grammar 现在完成时的被动语态 教学设计
授课教师姓名 |
| 学科 | 英语 | 教龄 |
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名称 | 现在完成时的被动语态 | ||||||
教学目标
| 知识目标:
能力目标:
情感目标:
法学习的信心。 | ||||||
教学重难点 | 教学重点: 1.理解现在完成时的被动语态的含义及用法。 2.理解现在完成时的被动语态的结构,并会在习题中运用。 教学难点:
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教学过程 | |||||||
| 内 容 | 学生活动 | 设计意图 | 时间 | |||
一、导入
| Step1: Warm-up Before class. Let’s watch a video: Visitors have been asked to keep the woods clean and tidy. The present perfect passive is used in this sentence. have asked为完成时态,表示已经要求。整句表示:游客们被要求保持树林的干净、整洁,所以用:have been asked。 同理Litter baskets have been placed under the trees, but people still throw their rubbish everywhere.中也有这样的用法,表示被动且完成。 | 看视频,认真听视频台词,分析台词的结构。
| 通过有趣的视频来引起学生的学习兴趣,了解本堂课的学习内容。
| 30秒 | |||
二、正文讲解
| Step 2: Definition 现在完成的被动语态的两种含义: 1.表示过去发生或已经完成的动作对现在的影响或结果;常用的时间状语有:just; already; ever; never; yet; for 3 days; by now; so far 1. Nothing like this has been invented yet. 2. In addition, important advances have been made in medicine so far. 2.表示动作从过去某一时间一直持续到现在。常 与“for+时间段”,“since+时间点或过去时的句子”连用 We Chat Payment has been used for over 10 years.
Step3:Structure 现在完成时的被动语态的结构 肯定式结构为:主语+have/has been+ 过去分词+其他部分 否定式为:主语+have/has+not+ been+ 过去分词+其他部分 一般问句结构式为:Have/Has+ 主语+been+过去分词+其他部分 特殊疑问句结构为:疑问词+have/has+主语+been+过去分词+其他部分 练一练: 原句为:The little boy has already been told the good news. 1.将原句变为否定句。 The little boy hasn’t been told the good news yet. 2.将原句变为一般疑问句。 Has the little boys been told the good news yet? 3.对原句中的 the little boys 进行提问。 Who has been told the good news yet?
Step4: Difference 通过课文中的例句比较现在完成时和现在完成时的被动语态的区别为:在现在完成时的被动语态中,主语与谓语动词的关系为被动关系。 第一组: 1. I guess you have been asked about the title of your book before. 2. New inventions like 3D printers have been used to make replacement hearts and bone parts. 第二组: 1. I guess someone has asked you about the title of your book before 2. People have used new inventions like 3D printers to make replacement hearts and bone parts.
Step5: Exercise Fill in the blanks appropriately. My lab has been broken into(break into). It was really in a mess. The thief ruined everything. My files recording various important experiments have been taken away(take away). My computers on the platform have been stolen(steal). The experiment apparatus have been broken up(break up). The robot has been broken(break) into parts. All of these annoyed me a lot. 通过训练习题,加深对本节课语法的理解。 |
| 1.通过丰富的图片以及动画来呈现本堂课的重点内容,了解现在完成时的被动语态的语法定义。 2.通过句型的转换来培养学生辨析与思考的能力。 3. 通过比较教材中现在完成时与现在完成时被动语态句子的区别,懂得现在完成时的被动语态的使用情况。 4.通过练习来巩固本堂课的教学重难点,并学会运用。
| 4分30秒 | |||
三、总结
| Today we have learned the use of the present perfect passive in Unit 3. Please remember the focal points after class. Thank you.
| 30秒 | |||||
教学反思 | 本节微课通过新概念英语小视频导入,用视频中的句子带动学生学习相关知识点,使学生对于本节课的语法更感兴趣。用课文中熟悉的句子来佐证一些语法条例,使学生感觉更简单。在本节课的教学中,教师边讲语法边举例,让学生在练习中学习。然后,引导他们自己找区别,体现了以学生为主体的教学模式。最后在有趣的练习中结束本课,帮助他们熟练的掌握知识点。本课堂课,条理清晰、结合教材、层层递进,引导学生逐步突破难点、掌握知识。 | ||||||
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