3 Unit 1 Where did you go on vacation Grammar（课件PPT）-【学海风暴】2023-2024学年八年级上册初二英语(人教版)

八年级英语RJ版·上册 Unit 1 Grammar 授课人：XXXX YUHENG 一、新课引入 Find out the past tense of the verbs in Section A,and make a list. stay stayed go went visit visited do did seem seemed take took taste tasted buy bought YUHENG 二、新课讲解 规则动词和不规则动词的过去式 1.规则动词过去式的变化 规则 示例 一般在词尾加-ed help-helped,play-played 以e结尾的加-d live-lived,hope-hoped 以辅音字母+y结尾的， 变y为加-ed carry-carried,study-studied 重读闭音节词词尾只有一个辅音字母时， 先双写这个辅音字母，再加-ed stop-stopped,plan-planned 二、新课讲解 2.常见不规则动词过去式的变化 分类 示例 过去式与动词原形相同 let-let,put-put,read-read,cut-cut 变为a swim-swam,sing-sang,give-gave 中间去e,末尾加t feel-felt,keep-kept 过去式以-ought和-aught结尾的动词 bring-brought,buy-bought 变为0 ride-rode,drive-drove ow/aw变为ew know-knew,grow-grew,draw-drew 以d结尾的动词，把d变成t lend-lent,build-built,send-sent 二、新课讲解 一般过去时态 1.构成：动词的过去式（规则变化/不规则变化） 2.用法：表示过去某个时间发生的动作或存在的状态。 表示过去经常或反复发生的动作。 3.常用时间状语：(the day before)yesterday last night/week in 2019/just now on Monday morning three days ago YUHENG 二、新课讲解 4.句子构成： (1)be动词的一般过去时：be变为过去式am/is-was,are-were 肯定句：I was very happy at the party last night. 否定句：I wasn't a kid anymore.. 一 般疑问句：-Were you at home yesterday evening? -Yes.I was./No,I wasn't. YUHENG 二、新课讲解 (2)实义动词的一般过去时 肯定句：主语+动词过去式+其他。 I went to the shop yesterday. 否定句：主语+助动词didn't+动词原形+其他。 He didn't do his homework yesterday. 一般疑问句：Did+主语+动词原形+其他？ -Did you sweep the floor last night? -Yes,I did./No,I didn't. YUHENG 二、新课讲解 复合不定代词 1.构成 -one -body -thing some- someone某人 somebody某人 something某事 any- anyone任何人 anybody任何人 anything任何事 every- everyone每人 everybody每人 everything所有事物 no- no one没有人 nobody没有人 nothing没有什么 二、新课讲解 2.用法 (1) some-类的复合不定代词多用于肯定句中，用在疑问句中 表示邀请、请求或建议，并希望得到肯定答复。 any-类复合不定代词多用于否定句、疑问句中，用在肯定句 中，意为任何人”或“任何事”。如： I have something important to tell you.我有重要的事情要告诉你。 Would you like something to drink?你想要些喝的吗？ I can't see anything in the dark room. 在这黑暗的房间里我看不到任何东西。 YUHENG 二、新课讲解 2.复合不定代词做主语时，谓语动词要用第三人称单数。如： Everything is possible.一切皆有可能。 Someone is knocking at the door.有人在敲门。 3.复合不定代词如果有形容词修饰，形容词应该放在后边。 I want to see something interesting in today's TV show. 在今