一般过去时知识点及练习(5页).doc
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1、-一般过去时知识点及练习-第 5 页一般过去时知识点及练习一般过去时的小学阶段的基础知识1、关键词: just now,a moment ago,ago, yesterday ,last ,yesterday morning, the day before yesterday ,in the past, in过去的年份或月份,once upon a time等。2、.含有be动词的一般过去时a. 定义:表示过去某时间存在的状态或特征b. be动词过去式:am , is- was are-werec. 含有be动词的一般过去时的基本句式:1肯定句: 主语 + was/ were + 其他 .例如
2、: 1)I was in the park a moment ago. 2)There were many trees in our country ten years ago. 3) The pair of glasses was on the desk just now.注意:可以先考虑在一般现在时情况下的be动词是什么,然后再考虑该be动词对应的过去式。2. 含有be动词过去式的肯定句变否定句方法:在was或were后加not,其余不变。注意碰到some变any.也就是说否定句结构为:主语 + was not( wasnt)/ were not (werent) + 其他例如:1) He
3、 was a student at a primary school ten years ago . (改为否定句) 2) We were here yesterday. (改为否定句) 3) I was at the camp last Sunday. (改为否定句)3. 含有be动词过去式的肯定句变一般疑问句方法:把was和were提到句子开头并变成大写字母,其余照抄,记得句号要变问号。但是注意碰到some变any,碰到my、our要变your,碰到I、we要变you.例如:1) He was a student at a primary school ten years ago. (改为
4、一般疑问句) 2) Helen and Ann were here yesterday. (改为一般疑问句) 3) I was at the camp last Sunday. (改为一般疑问句)3、含有行为动词的一般过去时a. 定义:表示过去某时间发生的动作b. 由动词原形变成过去分词的规律:1、大部分动词直接在后面加ed 2、以字母e结尾的动词后面直接加d 3、辅音加y结尾的动词,要把y变ied 4、以辅-元-辅结尾的重读闭音节的动词,要双写结尾字母后再加ed 5、特殊变形例如:把下列动词变成相应的过去式wash milk live dance sing do go study carry
5、 stop start steal c.含有行为动词过去式的肯定句变否定句方法:用didnt来帮忙,后面跟动词原形。所以否定句的结构为:主语+didnt(did not)+动词原形+其他。注意碰到some变any.提示:在否定句中,不管是dont, doesnt或didnt后面统统跟动词原形。例如:I did my homework yesterday evening. (改为否定句)My sister ate some pies just now. (改为否定句)We lived in Nanjing last year. (改为否定句)d. 含有行为动词过去式的肯定句变一般疑问句方法:用d
6、id来帮忙并放在句子开头且大写,但是过去式要恢复成动词原形,最后句号变问号。所以一般疑问句的结构为:Did+主语+动词原形+其他?注意碰到some变any,碰到my、our要变your,碰到I、we要变you.例如:I did my homework yesterday evening. (改为一般疑问句)My sister ate some pies just now. (改为一般疑问句)We lived in Nanjing last year. (改为一般疑问句)一般过去时的拓展知识(初中)1、 特殊变形的过去式beginbegan blow-blew buy-bought catch-
7、caughtcome-came do/does-did draw-drew drink-drankdrive-drove drink-drank drivedrove eat-atefeel-felt find-found fly-flew forget-forgotget-got give-gave gowent grow-grewhave-had hear-heard hurt-hurt keep-keptknow-knew learn-learnt/learned let-let lie-laymake-made mean-meant meet-met put-putread-read
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