课 题 | Unit 13 We are trying to save the earth!（第3课时） | 教学批注 |
教 学 设 计 | 一、教学三维目标 | |
1.知识与技能： 1. 语言知识目标 基本词汇：litter, advantage, bottom, fisherman, coal, ugly, cost, wooden, plastic, takeaway, bin, shark, fin, method, cruel. Harmful, chain, ecosystem, industry, law, scientific, afford, r白令海峡有多宽
eusable, transportation, recycle, napkin, upside, gate, bottle, president, inspiration, iron, work, metal, creativity, 基本词组：be harmful to, at the top(of sth.), take part in, turn off, take action, throw away, put sth. to good u, pull… down, bring back 基本句型：We’re trying to save the earth! The river ud to be so clean. The air is badly polluted. No scientific studies have showed that shark fins are good for health. We should help save the sharks. 2. 技能目标 能正确运用现在进行时，现在完成时，被动语态，情态动词和ud to 句型。 | ||
2.过程与方法： | ||
3.情感态度与价值观： 情感目标 有环境危机意识，学会关注环境保护环境。 | ||
二、教学重点、难点 | ||
1. 教学重点： （1）能正确运用现在进行时，现在完成时，被动语态，情态动词和ud to 句型。 （2）保护环境的措施方法。 2. 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ud to 句型。 | ||
三、教学准备 | ||
四、教学课时 7课时 | ||
五、教学过程 | ||
Period 3 Section A3 (Grammar Focus—4c) I. Revision 1. Check if you know the phras. ① 不同种类的污染 ② 河底 ③ 把垃圾扔到河里 ④ 在…中起作用 ⑤ 在中国南部 ⑥ 对……有害 ⑦ 在……顶部 ⑧ 海洋生态系统 2. Translate the ntences into English. 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 鲨鱼处于海洋食物链的顶部。 ④ 许多人相信鱼翅对健康有好处。 II. Grammar Focus Pay attention to the ntences. 1) We’re trying to save the earth. 2) The river ud 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. 1. 现在进行时: Prent 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 now… e.g. Look! The boy is crying. 2. ud to do与be ud to doing ud 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 ud to doing sth. 表示习惯于做某事。 e.g. I ud to get up at six o’clock. Joe is ud to drinking a cup 冰心语录
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: Prent Perfect 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。 结构: has/have + 过去分词 标志词：already, yet, ever, never, since, for… e.g. I haven’t finished my homework yet. | ||
教 学 设 计 教 学 设 计 教 学 设 计 | 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, 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。 e.g. Ken can climb up the tress like a koala. Tracy could ride a bicycle when she was five years old. You mustn’t play with fire. It is dangerous. III. Practice 1. Work on 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). Joe: How many people ____ (ta环保公益活动
ke) part? Eric: I _______ (think) more than 1,000 people ______ (come) to help out. Joe: That’s fantastic! I guess everyone in this city is ______ (try) to improve the environment. Eric: Yes, we can’t afford to ____ (wait) any longer to take action! Learn some new words and expressions. 2. Work on 4b. Fill in the blanks with the appropriate modal verbs from the box. The words are: can, would, could, have to, should, must, may/might People __________ think that big things ______ be done to save the earth. Many forget that saving the earth begins with small things. For example, you ____ save electricity by turning off the lights when you leave a room. You ______ also u reusable bags instead of plastic b蘑菇科
ags. I think it’s 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 it’s far, you __________ take the bus. All the small things ______ add up and become big things that ______ improve the environment. Let’s take action now! Learn some new words and expressions. 3. Work on 4c. Make a list of things that people can do to help the environment and discuss your list with your partner. u public transportation (n.交通运输); turn off the lights when you leave a room; u reusable bags instead of plastic bags; ride your bike or walk to school or work; stop using paper napkins; recycle books and paper … 4. Discussion. | |
教 学 设 计 教 学 设 计 教 学 设 计 | A: I think that everyone sho百草园到三味书屋
uld u public transpor电脑管家哪个好
tation. B: I disagree. It’s difficult for parents with young children to u public transportation… IV. Language points 1. We can’t 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 can’t afford to pay such a price. 我们付不起这个价钱。 Dancing affords us pleasure. 跳舞给我们带来快乐。 2. …save electricity by turning off the lights when you leave a room. turning off 关掉 e.g. Plea turn the television off before you go to bed. 睡觉前请关掉电视。 拓展：turn相关短语 turn around 转身 turn up 调高（音量） turn down 调低；拒绝 turn into 变成；进入 turn on 打开，发动 turn off 爱牙日手抄报
; 关掉，关闭 turn out to be 结果是 turn over 移交 V. Homework Finish the exercis in the workbook. | |
教 学 反 思 | ||
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