年级英语Fact and Story教案

Unit 4 Fact and Story

【本讲教育信息】
一. 教学内容：
第四单元  第一部分
学会使用情态动词could表述某人在过去某一阶段所具有的能力，学会描述过去正在发生的事情的经过。
 
二. 本周教学重点和难点:
1. To use could to talk about abilities in the past.
2. To describe past events using the past continuous.
3. Some very important expressions.
 
三. 具体内容:
（一）Could- abilities
1. 基本用法：表示某人在过去某一时期所具备的某种能力。
He could play the violin when he was seven.
She couldn’t dress herself when she was three.
Could they speak French?
Yes, they could.
2. 基本构成: could do sth.
He could ride a bike when he was a little boy.
He could not (couldn’t) ride a bike when he was a little boy.
Could he ride a bike when he was a little boy?
Yes, he could. No, he couldn’t.
3. Complete the blanks with could or couldn’t.
    Albert Einstein(1879-1955) was a German-born American physicist, the creator of the relativity. He        talk until he was three years old.
    Tiger Woods, the American golf champion, was born in 1975. He         play golf as soon as he could walk.
    Horatio Nelson(1758-1805) was a British naval commander during the Napoleonic Wars. He spent all his life at sea but he         swim.
 
（二）Past continuous
1. 基本用法:
（1）表示过去某一时刻或某一段时间里正在进行的动作。
I was watching TV at nine o’clock yesterday.
Last week we were working in the countryside.
（2）可以表示过去预计将要发生的动作，但只适用于start, fly, come, go, leave, arrive, stay, return等动词。
No one was coming as it was a rainy day.
（3）也可代替过去一般时表示赞美，厌烦等情绪。
He was always working hard.
The boys were making noise all the time.
（4）常被用来描写故事发生的背景。
Jane was dancing. When she saw me she stopped.
2. 基本构成: I/He/ She was
                        playing basketball.
 We/ You/ They were
3. 过去进行时与一般过去时区别：
前者表示“正在做某事”， 后者表示“做过了某事”。
I was translating an article last night.
I translated an article last night.
前者用来表示较长的动作，意味着一个过程。后者表示较短的动作。
I was running downstairs, when I slipped and fell.
The wind blew the window open while I was writing a report.
由此可见，过去进行时比一般过去时更多见于所引导的表示过程的时间状语从句中。
I met my cousin as/when/while I was going home.
 
四. useful expressions:
1. be good at 擅长
Ma Lin is good at math, so he likes taking part in math contests.
Judy is good at languages, so she speaks Chinese very well.

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