Unit 4 Fact and Story 教案

unit 4 fact and story

【本講教育信息】
一. 教學內容：
第四單元  第一部分
學會使用情態動詞could表述某人在過去某一階段所具有的能力，學會描述過去正在發生的事情的經過。
 
二. 本周教學重點和難點:
1. to use could to talk about abilities in the past.
2. to describe past events using the past continuous.[來源:第一范文網]
3. some very important expressions.
 
三. 具體內容:
（一）could- abilities
1. 基本用法：表示某人在過去某一時期所具備的某種能力。
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. 基本構成: 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）表示過去某一時刻或某一段時間里正在進行的動作。
i was watching tv at nine o’clock yesterday.
last week we were working in the countryside.
（2）可以表示過去預計將要發生的動作，但只適用于start, fly, come, go, leave, arrive, stay, return等動詞。
no one was coming as it was a rainy day.
（3）也可代替過去一般時表示贊美，厭煩等情緒。
he was always working hard.
the boys were making noise all the time.
（4）常被用來描寫故事發生的背景。
jane was dancing. when she saw me she stopped.
2. 基本構成: i/he/ she was
                        playing basketball.
 we/ you/ they were
3. 過去進行時與一般過去時區別：
前者表示“正在做某事”， 后者表示“做過了某事”。
i was translating an article last night.
i translated an article last night.
前者用來表示較長的動作，意味著一個過程。后者表示較短的動作。
i was running downstairs, when i slipped and fell.
the wind blew the window open while i was writing a report.
由此可見，過去進行時比一般過去時更多見于所引導的表示過程的時間狀語從句中。