泰安五四制人教版初中英语七年级(初二)下Unit4 知识点(泰安).docVIP

一般过去时的用法 一、一般过去时的基本定义 一般过去时是表示在过去某一时间发生的动作或存在的状态也可以表示在过去某一阶段经常、反复做的动作。 如：He walked to school. The children went to the zoo yesterday. The teacher often did some reading in the morning when he was a child. （这个老师在他是一个孩子时经常看书是过去常常，反复做的动作，所以这个句子要用一般过去时） 一般过去时的句式结构： 1. 主语+was/were+其他。 2. 主语+动词的过去式+其他。 二、be动词的过去时： 1.be动词过去时的肯定句：主语+ was/were + 其他 如：Mike was in the United States last year. 比较be 动词的现在式和过去式： 时态 主语 现在时 过去时 I (第一人称单数) am was He, She, It（第三人称单数） Is You（第二人称单复数） are were 如：I was very tired last night. There were some books there. (那儿曾经有一些书。) 注意：There be 句型用于一般过去时需把 is /are 变为它们的过去式：There was (were) … 2. be动词过去时的否定句：主语+ was/were + not +其他 He was not in Canada last year. be 过去式的否定句结构，只要在was/were 后面加上not 就可以了。 它的缩写形式为：wasn’t 和weren’t 如：I wasn’t busy yesterday. There weren’t any boys in the room. 3. be动词过去时的疑问句： （1）was/were + 主语+其他 （一般疑问句） —Was it raining in Beijing yesterday? —No, it wasn’t. It was cloudy. （2）特殊疑问词+ were/was +主语+其他 （特殊疑问句） —Where were you yesterday morning? —I was at school. be动词过去式一般疑问句的结构，只要把was/were 提到主语前面，some 变any , and 变成or。 回答时，Yes, … was/were. No, … wasn’t/weren’t. 以疑问词开始的特殊疑问句，回答时，不能用 Yes, No回答。 如：—Was your father free this morning？ —Yes, he was. —No, he wasn’t. —Was there any water in the bottle? —Yes, there was. —No, there wasn’t. 三、一般动词的过去时（不含be 动词） 一般动词（不含be动词）过去时的基本句型如下： 1.肯定句：主语+ 动词的过去式+ 其它 We had a good time yesterday. He had a good time yesterday. 一般动词的过去时没有人称和数的变化，因此主语即使是单数、第三人称，也和其他人称一样变化。 补充：动词的过去式及过去分词 规则动词的变化 构成法 例词 一般加—ed work — worked — worked 以e 结尾的词加—d live — lived — lived 以“辅音字母+ y“结尾的词，改y为i, 再加 —ed study — studied — studied cry — cried — cried 以“元音字母+ y“结尾的词，直接加 + ed play — played — played 以重读闭音节结尾（x除外）的双写结尾字母再加—ed stop— stopped — stopped fix — fixed — fixed 不规则动词单独识记。 如：I watched TV for an hour. She studied Russian two years later. We said good-bye to Li Ming at five. 2.否定句：主语+ did not + 动词原形 + 其它 We didn’t have a good time yesterday. He didn’t do his homewor