名称一般过去时多媒体CAI开发者波罗中学ppt课件

1、课件称号：多媒体CAI 课件开 发 者：波罗中学 胡国良教师 :hu720726126普经过去时普经过去时构成构成用法用法常用时间常用时间动词的过去式动词的过去式1、表示过去某个时、表示过去某个时 间发生的动作或间发生的动作或存在的形状。存在的形状。2、表示过去经常或、表示过去经常或 反复发生的动作。反复发生的动作。yesterdaylast nightin 1990two days ago动词过去式的构成规那么动词不规那么动词构成读音规那么动词过去式的构成规那么动词过去式的构成构成规那么例词1、普通在动词原形末尾加 ed look looked play played start start

2、ed2、结尾是 e 的动词加 - d live lived hope hoped use used3、末尾只需一个辅音字母的 重读闭音节词，先双写这 个辅音字母，再加ed stop stoppedplan plannedtrip tripped4、结尾是“辅音字母+y的动词， 先变“y为“i再加ed study studiedcarry carried清念清念 /t/ ,元浊元浊/d/ ; /t/ /d/ 之后念之后念/id/规那么动词词规那么动词词-ed的读音的读音阐明：1、清念 /t/ ，即 ed 在清辅音后面念 /t/ ,例：finished helped passed cooked2、

3、元浊 /d/ ,即 ed 在元音，浊辅音后面念 /d/ , 例：borrowed enjoyed called moved 3、/t/ /d/ 之后念 /id/ , 即 ed 在 /t/ /d/ 音后面念 /id/ 例：wanted shouted needed counted不规那么动词表不规那么动词表Infinitive Past tenseam is wasare werebegin begunbreak brokebring broughtbuild builtbuy boughtcan couldInfinitive Past tensecatch caughtcome camedo

4、 diddraw drewdrink drankdrive droveeat atefall fell用用 法法1、表示过去某个时间发生的动作或存在的形状。、表示过去某个时间发生的动作或存在的形状。 He was here yesterday. I got up at six thirty yesterday morning. My father was at work yesterday afternoon. Did you have a good time last summer?2、表示过去经常或反复发生的动作。、表示过去经常或反复发生的动作。 My father often went

5、to work by bus last year. When I was a child, I often listened to music.特别留意 在运用过去时时应注意以下几个问题: (1) 追述逝去的人或事,常用过去事.例如: The book was written by Liang Shiqiu. Lei Feng set a good example to the people all over the world. (2) 宾语从句是永久性或客观事实,不用过去时.例如: At the age of three, I couldnt at all understand the e

6、arth moves around the sun. 常用时常用时间间常与普经过去时态连用的时间有：常与普经过去时态连用的时间有：yesterdayyesterday morning (afternoon, evening)last night (week, month, year)two days ago, a week ago, three years agoin 1990, (in 2019)in the old days, the other dayat that time ,at that momentPRACTISE改写句子：1、Lucy did her homework at home.改否认句 Lucy _ _ her homework at home.2、He found some meat in the fridge.变普通疑问句) _ he _ _ meat in the fridge?3、She stayed there for a week.对划线部分提问 _ _ _ she _ there?4、There was some orange in the cup.变普通疑问句)