be动词的一般过去式[精].ppt

Be动词的一般过去时 1.一般过去时的概念：表示过去发生而现在已经结束的事件、动作或情况。 2.一般过去时中，所有的动词必须用过去式，除了了be动词的过去式有人称和数的变化外，其余动词的过去式都没有人称和数的变化。 过去式的构成规则： 1、 一般情况直接加ed，如ask-asked，work-worked。 2、 以不发音的e结尾，只加d，如love-loved，dance-danced。 3、 以辅音字母加y结尾，把y改i，如try-tried，study-studied。 4、 以一个元音字母和一个辅音结尾的重读音节结尾的动词，先双末尾一个字母，再加ed，如stop-stopped，permit-permitted。 注意：be动词的过去式，即is/am/are的过去式 一般过去时的肯定句、否定句和疑问句中的be动词变化如下： 1.肯定句 结构：主语+was/were+其他 2.否定句 结构：主语+was/were+not+其他 3.一般疑问句及其回答 结构：Was/Were+主语+其他？ 4.特殊疑问句及其回答 结构：特殊疑问词+was/were+主语+其他？ Be动词在各种句式中的记忆口诀： 肯定变否定，在was或were后面加not。 Was/were位于主语前，一般疑问句马上现。 特殊问句也不难，疑问词加在一般疑问句前。 判断下列句子： 1.I was born in China. 2.When and where was Kangkang born? 3.I wasn’t here yesterday. 4.Were you twelve last year? 5.You were ten in 2004. 6.He was born in China on May 13th,1997. 7.You weren’t here at that time. 选择填空。 ( )1． My father＿＿＿＿＿＿ill yesterday．A． isnt B． arent C． wasnt D． werent ( )2． ＿＿＿＿＿＿your parents at home last week﹖ A． Is B． Was C． Are D． Were ( )3． The twins＿＿＿＿＿＿in Dalian last year． They ＿＿here now． A． are; were B． were; are  C． was; are D． were; was ( )4． ＿＿＿＿＿＿your father at work the day＿＿＿＿＿yesterday﹖ A． Was; before B． Is; before  C． Was; after D． Is; after ( )5． —Who was on duty last Friday﹖ —＿＿＿＿＿＿． A． I am B． I was  C． Yes, I was D． No, I wasnt * Be动词过去式： is/am-was are-were 肯定句 特殊疑问句 否定句 一般疑问句 肯定句 肯定句 否定句 C D B B B *