小学英语一般过去时ppt课件.ppt
《小学英语一般过去时ppt课件.ppt》由会员分享,可在线阅读,更多相关《小学英语一般过去时ppt课件.ppt(27页珍藏版)》请在三一办公上搜索。
1、一般过去时的用法与结构详解,时态和时间,表示:,past,now,future,动词过去式的构成,规则动词regular verbs,不规则动词irregular verbs,规则动词过去式的构成,1、一般在动词末尾加 ed (掌握),look Walkpaintplay cleanVisitWantcoughwatch,look ed Walked painted play ed cleaned Visited Wanted coughed watched,2、结尾是 e 的动词只加 - d (了解),live hope use,lived hoped used,3.重读闭音节词, 先双写这
2、个辅音字母,再加ed,stopPat,stoppedPatted (掌握),4. 以“辅音字母+y”结尾的词, 先变“y”为“i”再加ed,study WorryEarlyHappy,studyied WorryiedEarlyiedHappyied,不规则动词过去式的构成,1.过去式与原形一样(了解),letlet(让),utput (放下),cut cut(砍,剪),readread(读),letlet(让),utput (放下),2.把元音字母变成“a”,come came(掌握)give gaveBecome becamedrink drank(了解)begin began,剩余不规则
3、动词,剩余不规则动词表,Infinitive Past Tense am, is are do go havemake get,Infinitive Past Tense eat say see,was were did went had made got,ate said saw,一般过去时肯定句变否定句,Be动词类 否定句 实义动词类,1 (be动词类)在表示过去存在的状态 的句子中在was, were的后面加上not。,如:肯定句: He was in the park the day before yesterday.否定句:He was not in the park the day
4、 before yesterday.肯定句: We were busy last week.否定句:We were not busy last week.,2(行为动词类)要在行为动词的前面加助动词didnt. 然后把动词过去式改为动词原形。即:didnt + 动词原形,肯定句: She played the violin last night.否定句:She didnt play the violin last night.肯定句: They swam in the lake yesterday.否定句:They didnt swim in the lake yesterday.,一般过去时
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- 小学英语 一般过去时 ppt 课件
链接地址:https://www.31ppt.com/p-1827721.html