初中英语人教版七年级下册微课课件

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?
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
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:
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/
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
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.
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?
• 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.
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
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 nighrday.
Did you get home at 5:00 yesterday?
Yes, I did. No, I didn’t. 2. Jack saw a movie yesterday.
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.