1、临 淄 一中 课 时 备 课 主备人： 刘丽伟 审核人：课 题来源:学优高考网Section A Grammar Focus课 型New 案序 4教学用具 A tape recorder教学方法Group work来源:gkstk.Com教学目标知识与能力： Key Vocabulary and Target Language过程与方法： 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。情感态度和价值观：有环境危机意识，学会关注环境保护环境。重点难点 Key vocabulary and target language.能正确运用现在进行时，现在完成时，被动语态，
2、情态动词和 used to 句型。教 学 过 程知识结构来源:gkstk.Com 师生活动I. RevisionCheck if you know these phrases. 不同种类的污染 河底 把垃圾扔到河里 在中起作用 在中国南部 对有害 在顶部 海洋生态系统II. Grammar FocusPay 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 studie
3、s have shown that shark fins are good for health.5) We should help save the sharks.1. 现在进行时: Present Progressive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一直进行的动作。结构: be (am/is/ are) + v.-ing标志词：Look, Listen, now, right nowe.g. Look! The boy is crying.2. used to do 与 be used to doingused to do sth. 表示过去常常做某事, 而现在
4、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.3. 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 + 过去分词e.g. A new school was built last year. Our classroom is cleaned every day.4. 现在完成时: Present Perfect定义：
5、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。 结构: has/have + 过去分词标志词：already, yet, ever, never, since, fore.g. I havent finished my homework yet.5. 情态动词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,
6、 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。III. Practice1. Work on 4a. Fill in the blanks with the correct forms of the verbs in brackets.2. Work on 4b. Fill in the blanks with the appropriate modal verbs from the box. Learn some new words and expressions.3. Work on 4c. Make a list of t
7、hings that people can do to help the environment and discuss your list with your partner. IV. Language pointsWe cant afford to wait any longer to take action!afford v. 承担得起；提供, 给予afford to do sth. (常与 can, be ble to 连用) 买得起；有足够的e.g. We cant afford to pay such a price. 我们付不起这个价钱。V. HomeworkFinish the exercises in the workbook.来源:gkstk.Com板书设计反思重建
