人教新目标 (Go for it) 版九年级全册Section A试讲课ppt课件

Unit 12 Life is full of the unexpected.

SectionA1a—2c 导学案

【学习目标】

1. Key words & phrases: unexpected, by the time...,backpack, oversleep.

2. Key sentences:

     1). By the time I got up, my brother had already gotten in the shower.

     2). When I got to school, I realized I had left my backpack at home.

3.To learn how to narrate past events.

4.通过本课的学习，学会合理安排时间，养成良好的学习习惯，增强做事的计划性。

【学习重难点】

1.能听懂别人叙述过去的事情。

2.初步学会运用由when/before/by the time引导的时间状语从句叙述过去的事件。

【自主预习】

Ⅰ. 请根据中文意思写出下列重点单词。

1. 出乎意料的；始料不及的adj. _________

2. 睡过头；睡得太久 v．__________

3. 背包；旅行包n. __________

Ⅱ. 请认真阅读课文，找出下列重点短语。

4. 在……以前 _____________

5. 洗淋浴 _____________

6. 把背包忘在家里 ____________

7. 返回学校 _____________

8. 开始教学 _____________

9. 响铃 ______________

Ⅲ. 请用以上重点短语完成下列句子。

10. 当我出来时，公共汽车已经走了。

______ ______ ______ I got outside, the bus had already left.

11. 当我到达学校时，我才意识到我把背包忘在家里了。

When I got to school, I realized I _____ _____ _____ _____ at home.

【合作探究】

1. 完成1a&1b
2. Listen again and complete the conversations.

Boy: Hi, Mary. You look so tired.

Mary:I am. I had a bad morning.

Boy: Really? What happened?

Mary:Well, first of all I ___________. By the time I got up, my brother _____ already _______ in the shower.

Boy: Oh, what a pain!

Mary:So, after he got out of the shower, I took a quick shower and got dressed. But by the time I ________ outside, the bus _______ already _________.

Boy: Oh, no!

Mary:Oh, yes! So I ran all the way to school. But when I got to school, I ________ I _____________ my backpack at home.

Boy:No wonder you look stressed.

3.完成1c

4.完成2a&2bza

5.Listen again and complete the conversations.

Boy:   So then what did you do, Mary?
Mary: Well, I ___________ to get my backpack. But when I___________, I realized I ___________ my keys in the backpack.
Boy:   You’re kidding!
Mary: So I ___________ school ___________my keys or  my backpack.But by the time I ___________ school, the bell___________.
Boy:   Oh, no!
Mary: And by the time I ___________ class, the teacher ___________ teaching already. She ___________our homework,  but of course I ___________ it.

6.完成P2-2c

【总结提升】

1. 写出下列动词的过去式和过去分词形式。

2.请仔细观察下面的句子和时间轴，注意动作所处的时间状态，并试着根据图片完成句子。发挥你的想象力吧！

By the time I got outside, the bus had already left.

当我到外面时，公共汽车已经开走了。

7:55                 8:00            现在

观察总结：by the time意思是“到……的时候”，相当于when，后接过去时的句子时，主语的谓语动词用过去完成时。

  7:00                   7:10             现在

1. 当我起床的时候，我妈妈已经洗澡了。

   __________________________________

  7:10               7:12              现在

2. 当我达到学校的时候， 已经开始上课了

   ___________________________________

3.总结:The Past Perfect Tense过去完成时

过去完成时表示在过去某一时间或动作之前已经发生或完成了的动作。

它所表示动作发生的时间是“过去 的过去”。

构成：由“助动词had(用于各种人称和数) + 过去分词”构成

① 表示过去某一时间可用by, before 等构成的短语来表示。

② 也可以用when, before 等引导的时间状语从句来表示。

③ 还可以通过状语从句或通过上下文暗示。