初中英语Section A精品表格同步测试题

课题

Section A 3 (Grammar Focus-4c)

第3课时

执教日期

学习目标

1. 语言知识目标  基本词汇：afford, reusable, transportation, 基本词组 take part in, turn off, take action, throw away, put sth. to good use, pull… down, 基本句型：

          No scientific studies have showed that shark fins are good for health.

   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used to 句型。

重点难点

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。

课前准备

录音，课件

方法运用

自主、探究、合作、交流。

师生活动

复备设计

 I. Revision

1. Check if you know these phrases.

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 these sentences 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 sentences.

1) We’re 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.

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 now…

e.g. Look! The boy is crying.

2. used to do与be used to doing

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 o’clock.

    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：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.

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。

III. Practice

1. 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.

3. Work on 4c. Make a list of things that people can do to help the environment and discuss your list with your partner.

4. Discussion.

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. 

      Dancing affords us pleasure.  

2. …save electricity by turning off the lights when you leave a room.

  turning off   关掉

  e.g. Please turn the television off before you go to bed.  

V. Homework

Finish the exercises in the workbook.

use public transportation (n.交通运输);

turn off the lights when you leave a room;

use reusable bags instead of plastic bags;

ride your bike or walk to school or work;

stop using paper napkins;

recycle books and paper

. used to do与be used to doing

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。

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

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       关掉，关闭

turn out to be  结果是

turn over      移交

教学后记

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