人教版九年级Unit 13 We're trying to save the earth!-Section A Grammar focus 4a—4c-ppt课件-(含教案+视频+素材)-公开课-(编号：843d0).zip

Unit13 Weretryingtosavethe earth! (SectionAGrammarFocus-4c) Playagame(checkhomework park pollutions 单词检测 垃圾 渔民 煤、煤块 承担得起 回收利用 litter fisherman coal afford recycle 1. 不同种类的污染 2. 不再 3. 把垃圾扔到河里 4. 的数量 5、在中国南部 6、对、有害 7、把危险带给、 、 different kinds of pollution no longer throw rubbish into the river the number of 短语检测 in southern China be harmful to bring danger to Translate the sentences. 1. 甚至是河底都满是垃圾。 2. 这个方法不仅残酷还对环境有害。 3、鲨鱼处于食物链的顶部 4、许多人相信鱼翅对健康有好处 Even the bottom of the river was full of rubbish. This is not only cruel, but also harmful to the environment. Sharks are at the top of the food chain in the oceans ecosystem. A lot of people believe that sharks fins are good for health. Retellthearticle Pay attention to the sentences. 1. Were trying to save the earth. 2. The river used to be so clean. 3. The air is badly polluted. 4. No scientific studies have shown that shark fins are good for health. 5. We should help save the sharks. used to Present progressive Passive voice Present perfect Modal verbs 现在进行时: Present Progressive 结构: be (am/is/are) + v.-ing 标志词：Look, Listen, now, right now e.g. Look! The boy is crying. 定义：表示说话时(瞬间)正在进行 的动作, 也表示目前或现阶段 正在进行的动作。 现在分词的构成： 1、一般情况下在动词词尾直接加ing 2、以不发音字母结尾的动词，去掉 e加ing 3、以一个辅音字母结尾的重读闭音 节的动词，双写最后一个辅音字母， 在加ing gowritehavestoprun used to do sth. 表示过去常常做某事, 而现 在往往不做 了, 后接动词原 形。 be used to doing sth. 表示习惯于做某 事 e.g. I used to get up at six oclock. Joe is used to drinking a cup of coffee every morning. used to do与be used to doing 被动语态：Passive voice 定义：表示主语是动作的承受者，即行 为动作的对象的一种语态。 结构：be + 动词的过去分词 e.g. A new school was built last year. Our classroom is cleaned every day. 结构: has/have + 动词的过去分词 标志词：already, yet, ever, never, since, for e.g. I havent finished my homework yet. 定义：表示动作已经完成, 但对现在造成影 响; 或者表示从过去某一时间开始一 直延续到现在并还可能持续下去的 动作。 现在完成时: Present Perfect 动词过去分词的规则构成： 1、一般情况下，在动词后加ed 2、在以e 结尾的动词后只加d 3、在以辅音字母加y 结尾的动词，应将y 改为i 再加ed 4、以重读闭音节结尾的动词，要双写末尾 的辅音字母再加ed 不规则动词的过去分词： AAA型 AAB型 ABA型 ABB型 ABC型 put put put beat beat beaten become became become get got got begin began begun 1. 情态动词本身有一定的词义, 表示说话人的情 绪、态度或语气, 但不能单独作谓语, 只能与 其他动词构成谓语。常见的有: can (could), may (might), must, need, shall (should), will (would)等。 2. 情态动词无人称和数的变化, 后接动词原 形。否定式是在情态动词后面加not。个别情 态动词有过去式形式, 可用来表达更加客气、 委婉的语气。 情态动词 make the new sentences. 4a Fill in the blanks with the correct forms of the verbs in brackets.Joe: _ you ever _ (take) part in an environmental project ? Eric: Yes, I have. I _ (help) with a Clean-Up Day last year. It was _ (consider) the biggest clean-up project this city _ ever _ (have). Have taken helped considered had had 参加 Joe: How many people _ (take) part? Eric: I _ (think) more than 1,000 people _ (come) to help out. Joe: Thats fantastic! I guess everyone in this city is _ (try) to improve the environment. Eric: Yes, we cant afford to _ (wait) any longer to take action! took think came trying wait v. 承担得起(后果); 买得起 4b Fill in the blanks with the appropriate modal verbs from the box. People _ think that big things _/have to_ be done to save the earth. Many forget that saving the earth begins with small things. For example, you _ save may/might must can/should/could can would could have to should must may/ might electricity by turning off the lights when you leave a room. You _ also use reusable bags instead of plastic bags. I think its a great idea that you now _ pay for plastic bags in some stores. And instead of driving to school or work, you _ ride your bike or walk. If its far, you _ take the bus. All these could/can/should have to can/should/could can/could 关掉adj.可重复使用的 付费;付出代价 small things _/can_ add up and become big things that _ improve the environment. Lets take action now! could would/can/could 采取行动 Make a survey Name Howtohelpthe environment Agreeordisagree (Whyorwhynot) Lucy ride the bike or walk to schoolgood for body, die down pollution Reporter:Lucyridesherbiketoschool everyday,Iagreewithher,becauseI thinkitsgoodforherbody,anddiedown pollutions. SummarySummarySummarySummary 用动词的适当形式填空。 1. The girls _ (dance) in the classroom. 2. I _ (live) here since 1999 3. A new highway in my hometown (build) next month. 4.- Did you go to Jacks birthday party? - No I _ (not invite) 5、Whatisthis? ItsaCD.ThisCD _ (use)forlearning English are dancing have lived is used wasnt invited 达标检测达标检测 will be built_ 选择填空 1、 youpassmeapen?Idliketowritedown thephonenumber.Sure.Hereitis. ACanBNeedCMightDMust 2、Youworryaboutme.Itsnothingserious AcantBmustntCneedntDwont 3、-Doyouoftencleanyourclassroom? -Yes.ourclassroomeveryday AcleanBleanedCcleansDiscleaned. 4、-MayIspeaktoJohn? -Sorry,hetoNewYork.Hewillbebackintwo days. AgoBgoesChasgoneDwent. 5、Its5oclocknow.Mikedinner. AhaveBishavingChasDeat A C D C C 二、翻译句子。 1、她过去常常周末和朋友闲逛 2他习惯于每天晚上睡得很晚 3.Kenusedtobeafraidofdogs.（改为一般疑问句） 4.许多人都听说过鱼翅羹。 5.听，学生们正在唱歌。 She used to hang out with friends on weekends. He is used to sleeping late. Did Ken use to be afraid of dogs? Many have heard of shark fin soup Listen , the students are singing a song The earth is badly polluted. Please make a poster and think of what we can do. 教学反思 在本节课结束之后，我将回顾反思，有不足的地方加以改进，对于 有效的教学方法进行总结推广。综观整节课的设计思路，由浅入深， 循序渐进地帮助学生掌握语法和阅读技巧，智慧地扫除阅读障碍， 克服畏难心理，成功地实现有效教学。增加英语学习的自信。同时 激发学生的学习热情，从课内的指导性练习自然而然地过渡到课外 的中考题型的演练，培养了学生自主学习的学习习惯。 Unit 13 were trying to save the earth! (Section A Grammar Focus-4c)教学设计 一、教学分析 1、教材分析 本单元没有新的语法项目，主要是复习以前学过的语法项目。 Grammar Focus 的表格总结了本单元的典型例句，包括现在进行时、 used to、被动语态、现在完成时态、情态动词的句子，而且每一个 句子都是与环境污染或者环境保护话题有关。4a 提供了一段记者采 访的对话，要求学生根据上下文填入动词的正确形式，学会区分不 同的时态、不同语态的用法。这个活动让学生在情境中、在交际中 运用语法，从而掌握语法。4b 提供了一段保护环境从小事做起的篇 章，让学生选择正确的情态动词填空，检测学生能否正确区别他们 的意思和用法。4a 和 4b 的练习分别是对话和篇章的形式，但是话 题都与环境有关，巩固语法的同时又是环境话题的输入。4c 则是开 放性的输出活动，要求学生进行小组讨论，写下保护环境的方式， 然后展示给全班，其他同学可以赞同也可以是反对这些做法，并对 他人的想法表达意见。 2、学情分析 九年级的学生已经具备了一定的听说读写能力，他们面临着中考， 所以掌握更多的语言知识以及提高他们的听说读写的技能对他们尤 其重要。通过听说读写的训练,学生在关注认知语言结构的同时,还 要关注语法内容的交际性运用。学生对英语学习有较强烈的愿望和 学习的兴趣,喜欢游戏、竞赛、小组合作等活动形式,课堂上教师应 关注全体学生,尽量以鼓励表扬为主,营造学英语的氛围,鼓励学生开 口说英语,写英语,让他们体味成功的喜悦。 二、目标的设定 （1） 知识与技能 能够掌握单词、固定短语的应用；能模仿范例写句子；能正确朗读 所学故事或短文 （2）过程与方法 能够掌握现在进行时、used to、被动语态、现在完成时态、情态动 词的用法，能够在交际中运用语法，从而掌握语法 （3）情感态度 通过本节课的学习，让学生有环境危机意识，学会关注环境保护环 境 （4） 教学重点：能正确运用现在进行时，现在完成时，被动语态， 情态动词和 used to 句型。 保护环境的措施方法。 （5）教学难点：能正确运用现在进行时，现在完成时，被动语态， 情态动词和 used to 句型。 三、教学过程 Step 1: Warm-up and revision.（课堂热身和复习） Play a game（让学生们选择一张自己喜欢的图片，图片后 面呈现相应的单词、短语、句子，然后对学生进行检测） 【教学设计说明】通过游戏让学生参与到课堂中来，既活跃了课堂 气氛，同时也对学生的所学内容进行检查，针对学生的掌握情况及 时进行查漏补缺。同时也为本节课的学习扫清了单词的障碍，有利 于学生对语法的掌握。 1、单词检测 litter coal fisherman afford recycle 2. 短语检测 不同种类的污染不再 把垃圾扔到河里 、 、的数量 在中 国南部 把危险带给、 、 、 3. Translate these sentences into English. 甚至是河底都满是垃圾。 这个方法不仅残酷还对环境有害。 鲨鱼处于海洋食物链的顶部。 许多人相信鱼翅对健康有好处 4.复述课文 Step 2：Lead-into T: Show the sentences; let the students translate these sentences. 【教学设计说明】通过大屏幕呈现语法句子，使学生能够对本节课 所学内容一目了然，同时也锻炼了学生的口语表达能力。 Step 3 Pair work 任务一 Show the sentences ,let the students talk about these sentences.（教师可以提醒学生从时态、语态上去分析句子） 1) Were trying to save the earth. 2) The river used to be so clean. 3) The air is badly polluted. 4) No scientific studies have shown that shark fins are goo d for health. 5) We should help save the sharks. 【教学设计说明】通过小组讨论让学生从时态、语态上分析句子， 并知道每个句子的时态，为下一步的学习做好铺垫。同时学生自己 讨论得出的结果会让学生记忆更加深刻。 任务二 Show the sentences ,let the students talk about these sentences.（教师提醒学生从时态、语态定义、用法、谓语的构成 等方面去分析句子） 【教学设计说明】通过小组讨论，让学生知道各种时态的定义、用 法等，这样既锻炼了学生的语言表达能力，同时也锻炼的学生的归 纳总结的能力，记忆起来印象更加深刻。学生容易混淆 used to do 和 be used to doing 的用法，教师重点讲解 任务三 Exercise（呈现一段学生们自己正在扫地的视频，让学生根据这张 段视频，写出现在进行时、过去完成时、一般过去时（used 的用法） 被动语态、含情态动词的句子） 【教学设计说明】通过练习加深巩固本节课所复习的语法内容，呈 现学生自己的视频，更贴近学生的生活实际，让学生更容易接受。 Step 4. Completion 1. Work on 4a. Fill in the blanks with the correct forms of the verbs in br ackets. 2. Work on 4b. Fill in the blanks with the appropriate modal verbs from t he box. 【教学设计说明】通过学生自己做练习，巩固刚复习过的语法项目， 能够让学生学有所用，同时以小组竞赛的形式呈现结果，让学生更 愿意参与到课堂教学中来,不仅活跃了课堂气氛，还培养了学生间的 相互合作意识。 Step 5. Make a survey Name How to help the environmentAgree or disagree （Why or why not） 【教学设计说明】通过调查让学生做报告，是对学生语言输出的一 个检测，同时也培养了学生的写作能力。 Step6 Summary T: What do you learn in this lesson? 【教学设计说明】帮助学生养成归纳总结的学习习惯，强调明白本 堂课的重点 Step 7. Homework Make a poster! The earth is badly polluted. Please make a poster and think of what we can do. 【教学设计说明】通过写作让学生有环境危机意识，学会关注环境 保护环境。 Black board Unit 13 were trying to save the earth! (Section A Grammar Focus-4c) now be+P.P have/has +P.P be+Ving Used to +do be used to +doing 一、用所给词的适当形式填空。一、用所给词的适当形式填空。 达标检测达标检测 1. The girls _ (dance) in the classroom. 2. I _ (live) here since 1999 3. A new highway in my hometown (build) next month. 4. - Did you go to Jacks birthday party?- No I _ (not invite) 5、What is this? Its a CD. This CD _ (use) for learning English 二、选择填空二、选择填空 1、 you pass me a pen? I d like to write down the phone number. Sure . Here it is. A Can B Need C Might D Must 2 、You worry about me .Its nothing serious A cant B mustnt C neednt D wont 3、-Do you often clean your classroom? -Yes .our classroom every day。 A clean B leaned C cleans D is cleaned. 4、-May I speak to John? -Sorry ,he to New York .He will be back in two days. A go B goes C has gone D went. 5、Its 5 oclock now .Mike dinner. A have B is having C has D eat 三、翻译句子。三、翻译句子。 1、她过去常常周末和朋友闲逛、她过去常常周末和朋友闲逛 2 他习惯于每天晚上睡得很晚他习惯于每天晚上睡得很晚 3.Ken used to be afraid of dogs.（改为一般疑问句）（改为一般疑问句） 4.许多人都听说过鱼翅羹。许多人都听说过鱼翅羹。 5.听，学生们正在唱歌。听，学生们正在唱歌。 一、用所给词的适当形式填空。一、用所给词的适当形式填空。 达标检测达标检测 1. The girls _ (dance) in the classroom. 2. I _ (live) here since 1999 3. A new highway in my hometown (build) next month. 4. - Did you go to Jacks birthday party?- No I _ (not invite) 5、What is this? Its a CD. This CD _ (use) for learning English 二、选择填空二、选择填空 1、 you pass me a pen? I d like to write down the phone number. Sure . Here it is. A Can B Need C Might D Must 2 、You worry about me .Its nothing serious A cant B mustnt C neednt D wont 3、-Do you often clean your classroom? -Yes .our classroom every day。 A clean B leaned C cleans D is cleaned. 4、-May I speak to John? -Sorry ,he to New York .He will be back in two days. A go B goes C has gone D went. 5、Its 5 oclock now .Mike dinner. A have B is having C has D eat 三、翻译句子。三、翻译句子。 1、她过去常常周末和朋友闲逛、她过去常常周末和朋友闲逛 2 他习惯于每天晚上睡得很晚他习惯于每天晚上睡得很晚 3.Ken used to be afraid of dogs.（改为一般疑问句）（改为一般疑问句） 4.许多人都听说过鱼翅羹。许多人都听说过鱼翅羹。 5.听，学生们正在唱歌。听，学生们正在唱歌。