Unit 2 Saving the Earth-Topic 2 All these problems are very serious.-Section B-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：60030).zip

Air pollution Unit 2 Saving the Earth Topic 2 All these problems are very serious. Section B What can we do to solve these problems? rubbish here and there spit anywhere walk on grass pick flowers care for wild animals plant trees 234 1 5 1b Listen to 1a and number the following pictures. None of us likes pollution. 没人喜欢污染。没人喜欢污染。 pron.没有一个，没有一个， 毫无毫无 none和和no one 的区别的区别; No one 1)不与不与of连用；连用；2)谓语动词用单数；谓语动词用单数；3)只能指人，但不具只能指人，但不具 体指什么人；体指什么人；4)一般用来回答一般用来回答who,及含及含anyone, anybody引起的引起的 疑问句。疑问句。 None 1)可与可与of连用；连用；2)谓语动词用单或复数；谓语动词用单或复数；3)具体指什么人具体指什么人 或物；或物；4)一般用来回答一般用来回答how many +n, how much +n及含及含any +n 引起的疑问句。引起的疑问句。 1c Read 1a and complete the table. Should do Shouldnt do 1._ _ wild animals 2.plant _ _ 3.do _ we can 1._ rubbish here and there 2._anywhere in public 3._ on grass 4. pick _ care for more trees everything leave spit walk flowers Because none of us likes pollution, We should do everything we can to protect the environment. Who can fill it quickly thing body onewhere some any every no somethingsomebodysomeonesomewhere anythinganybodyanyoneanywhere everythingeverybody everyone everywhere nothing nobody nowhere pron.没有人 n.小人物，无足 轻重的人 pron.人人，每个人人人，每个人 somebody, someone, something, somewhere anybody, anyone, anything, anywhere none, nobody, nothing, nowhere everybody, everyone, everything, everywhere 一般情况下用于肯定句一般情况下用于肯定句 一般情况下用于否定句和疑问句一般情况下用于否定句和疑问句 表否定含义表否定含义 可用于各种句式可用于各种句式 the indefinite pronoun and adverb 1.I have _ to tell you. A. important something B. something important B 形容词修饰不定代词和不定副词时，要放在不定代词形容词修饰不定代词和不定副词时，要放在不定代词/不定副词之后不定副词之后 Do you know? 2.Everybody _ ready for the match. A. is B. are A 不定代词作主语时，谓语动词要用单数。不定代词作主语时，谓语动词要用单数。 3 Read and understand the first sentence. Then complete the second one and read them aloud, paying attention to the weak form, liaison and intonation. Example : As we all know, air pollution has become a serious problem? Everybody knows air pollution has become a serious problem. 1.None of us would like to see dirty water and rubbish lying around . _ would like to see the dirty water and rubbish lying around . 2. We should follow social rules and spit nowhere in public . We should follow social rules and not spit _ in public. 3. We should do everything to protect the environment in our daily lives . We shouldnt do _ to destroy the environment in our daily lives . Nobody anywhere anything We learn: 1. some words : none, rubbish, wild, nobody, worst, situation, punish, everybody 2. some phrases: here and there, worst of all 3. some sentences : None of us likes pollution . Dont spit anywhere in public. Everyone should care for wild animals and plant more trees . We should do everything we can to protect the environment. We shouldnt leave rubbish here and there. We can: 1. Use the indefinite pronouns and adverbs correctly. 2. Use the proper ways to protect the environment. Summary Read 1a. Memorize the useful expressions and key sentences which we learn today. Finish Section B in your workbook. Preview Section C. Thank you! 【Analysis【Analysis ofof teachingteaching material】material】： 本课是第二单元第二话题的第二课时，主活动为1a和2，以康康 和朋友们讨论空气污染的对话开始，引出关于环境污染的话题。通 过讨论空气污染的形成以及危害来展示严重的环境污染问题，学习 相关的单词和短语，并掌握不定代词和不定副词的用法。通过对话 的学习，让学生进一步了解污染的危害性，并能从自身做起保护环 境。 【Analysis【Analysis ofof thethe situation】situation】： 九年级的学生已有一定的英语基础，但听说读写的能力还有待提 高。大部分学生都能够积极配合老师的教学，但部分学生惰性较大 。所以对九年级学生的教学主要应采用加强基础知识能力的前提下 ，重点培养学生综合运用语言能力就显得尤为重要。 【Teaching【Teaching aims】aims】： 1.Knowledge aims： 掌握本课的重点词汇和短语。正确灵活使用不定代词和不定副词。 2.Skill aims: 能听懂有关环境污染的对话。 能理解和运用不定代词和不定副词来进行听、说、读、写活动。 3.Emotional aims: 让学生懂得保护环境的重要性。 【The key points and difficult points】 ： 1. Key points: Words and phrases: user，none，rubbish，here and there，spit，wild , worst, nobody, untidy, rude, behavior, situation, punish, everybody, nowhere Sentences: 1.But the government is doing something useful to protect the environment. 2.None of us likes pollution. 3.Dont spit anywhere. 4.We should do everything we can to protect the environment. Difficult points： 正确使用不定代词和不定副词来表达句子并能正确地运用于各种 句型。 【 Learning strategies】： 通过引导学生在听前阅读 1b 和 2，培养学生形成听前熟悉、预测听力材料的习惯。 通过朗读 1a 和 2，引导学生模仿已有对话，编写新的对话。在授课过程中，使用小 组合作教学方式。 【 Teaching aids 】： 幻灯片 【Teaching procedures 】： Step1 Free talk What should we do to protect the environment?. Step2 Listening 1: Let the Ss listen to 1a twice and do 1b alone. 2. T: Now please check answers in your group. Step 3 Reading Let the Ss read 1a aloud and explain the key sentences of this dialog. Step4 Practice Retell the dialog according to 1c Step 5 Listening again Step 6 Exercises Step 7 Summary sum up the key phrases and the difficult sentences. Step 8 Homework 课件内容介绍和使用说明课件内容介绍和使用说明 本课件是为仁爱英语九年级上册 Unit 2 Topic 2 Section B 编写的教学课件， 这是第二单元第二话题的第二课时。本课通过 Michael 和 Kangkang 关于空气 污染这一话题的讨论，学习相关的单词和短语，并掌握不定代词和不定副词的 用法。通过对话的学习，让学生进一步了解污染的危害性，并能从自身做起保 护环境。 同时，也对学生的语音知识如：弱读、连读和语音语调等进行了科学 合理的训练。为更好更有效地实现本课教学目标，本课件从学生实际出发，对 教材进行了必要的整合，教学设计直观生动。基于本节课主要活动有 2 个，1a 和 2，因此对教学设计作如下安排： Getting students ready for learning: 复习掌握复合不定代词和不定副词及其用法。出示一个表格，小组竞赛填表 格，看哪一组填得多。同时学习本课出现的几个新单词。 (幻灯片 2 ) 小组比赛，用不定代词和不定副词造句，看哪一组造得句子多。(幻灯片 3 ) Pre-listening: 出示一组空气污染的图片，讨论其危害及如何保护环境。(幻灯片 4 ) While-listening: 听 1a 录音，回答相应问题。(幻灯片 5 ) 再听 1a 录音，完成 1b。(幻灯片 6) 播放 1a 动画，注意模仿语音语调，进一步理解对话内容。(幻灯片 7 ) Post-listening: : 在谈论过程中教师有意识引导出本课新的单词。为理解 1a 内容打好基础。 (幻灯片 8、9) 阅读 1a，完成 1c。(幻灯片 10 ) 圈出对话中的不定代词并练习。(幻灯片 11 ) 听 2 录音，完成 Kangkang 的信。(幻灯片 12) Practice: 听 3 录音，注意弱读、连读及语音语调，并模仿。完成 3。(幻灯片 13) 小组合作，完成 4。(幻灯片 14 ) 根据 4，写一篇演讲稿。(幻灯片 15) Assigning homework: 总结本堂课的新单词、短语和语法项目，让学生能把握整堂课的重点。(幻灯 片 16) 设计了书面显性作业及课文朗读、对话练习、预习新课等隐性作业。(幻灯片 17)