初中英语人教版七年级下册微课课件

快速说出下列动词怎样变成过去式。 1.watch- watched 2. visit- visited 3. play- played 4. live- lived 5. move- moved 6. decide- decided 7. study- studied 8. copy- copied 9. cry- cried 10. stop- stopped 11. plan- planned12. drop- dropped 13. am/is- was 14. go- went 15. do- did 16. put- put 17. get- got 18. take - took
in 1990
in 2008…
法宝2.动词的过去式
动词过去式
规则变化 不规则变化
口诀：一加ed，二加d，三要双写， 四注意，改y为i加ed，特殊形式特殊记。
1. 动词be的变化：
am
was are
were
is
2. 助动词do的变化： do→ did (在过去时里助动词did没有人称和数的变化)
如：Did you play soccer yesterday?
一般过去时
一般过去时
知识结构
构成 用法
动词的过去式
1. 表示过去某个时间或 某一时间内发生的动作 或存在的状态。 2. 表示过去经常或反复 发生的动作。
时间状语
1. yesterday/last night two days ago/in 1990
2. often/always
一般过去时的两大法宝:
Did he play soccer yesterday?
3. 实义动词的变化： 分规则变化和不规则变化。
构成规则 一般在动词末尾加-ed 以e结尾的动词加-d
原形 work play hope live
过去式 worked played hoped
lived
重读闭音节词且末尾只有一个辅音字 stop 母的，先双写这个辅音字母，再加-ed trip
特殊疑问句：特殊疑问词+was/were+主语+其他？
我现在在家了。 I am at home now. 我昨晚在家了。 I was at home last night .
时间 When were you at home? 地点 Where were you last night? 主语 Who was at home last night?
特殊疑问句：特殊疑问词+did +主语+动词原形+其他？
她在医院工作。
She works in a hospital.
她去年在一家医院工作。She worked in a hospital last year.
时间 When did she work in a hospital? 地点 Where did she work last year? 主语 Who worked in a hospital last year?
stopped tripped
以“辅音字母+y”结尾的动词，先改 “y”为“ i”再加-ed
study worry
studied worried
注：动词过去式不规则变化，需逐个记忆。书141页
规则动词变过去式的发音规则
口诀：清对清，浊对浊，t, d后面读/id/
清对清，以清辅音结尾的动词后的-ed读/t/， 浊对浊，以浊辅音或元音结尾的动词后的-ed读/d/， 以t, d结尾的动词后面的-ed读/id/
1. I got home at 5:00 yesterday.
Did you Байду номын сангаасet home at 5:00 yesterday?
Yes, I did. No, I didn’t. 2. Jack saw a movie yesterday.
every day yesterday
• I get home at 5:00 every day. I got home at 5:00 yesterday. • Jack sees a movie every day.
将一般现在时改为 一般过去时
Jack saw a movie yesterday.
系am动/is →词wasbe的are过→w去ere 时：
肯定句：主语+ was/were +其他. 否定句：主语 + wasn’t /weren’t+其他. 一般疑问句：Was/werzexxk+w 主语+其他？ 肯定回答： Yes, 主语 + was/were. 否定回答： No, 主语+ wasn’t/weren’t.
肯行定句为：主动语+动词词过的去式+一其它般过去时:
I go to the movie. →I went to the movie. 否定句：主语+助动词didn’t+动词原形+其它 I don’t go to school. →I didn’t go to school.
zxxkw
一般疑问句：Did +主语+动词原形+其它? Does he have breakfast? →Did he have breakfast? Yes, he does./No, he doesn’t. Yes, he did./No, he didn’t.
1. 表示过去的时间状语 2. 动词的过去式
法宝 1.常用时间状语
一般过去时的 判断标志词
yesterday the day before yesterday just now yesterday morning ( afternoon / evening/…) last week（month / year / winter/…) two days ( an hour /a week /three years )ago a moment ago
• She buys lunch in the shop every day.
She bought lunch in the shop yesterday.
• There are many people in our school every day.
There were many people in our school yesterday.