小学英语一般过去时.pptx
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1、时态和时间表示:pastnowfuture第1页/共27页动词过去式的构成规则动词regular verbs不规则动词irregular verbs第2页/共27页规则动词过去式的构成第3页/共27页1、一般在动词末尾加、一般在动词末尾加 ed (掌握)(掌握)look Walkpaintplay cleanVisitWantcoughwatch look ed Walked painted play ed cleaned Visited Wanted coughed watched 第4页/共27页2、结尾是、结尾是 e 的动词只加的动词只加-d (了解了解)live hope useliv
2、ed hoped used第5页/共27页 3.重读闭音节词,重读闭音节词,先先双写双写这个辅音字母,再加这个辅音字母,再加ed stopPatstoppedPatted(掌握掌握)第6页/共27页4.以以“辅音字母辅音字母+y”结尾的词,结尾的词,先变先变“y”为为“i”再加再加ed study Worrystudyied Worryied第7页/共27页不规则动词过去式的构成第8页/共27页1.过去式与原形一样(了解)letlet(让)(让)putput(放下)放下)cut cut(砍,剪)(砍,剪)readread(读)(读)letlet(让)(让)putput(放下)放下)第9页/共2
3、7页2.把元音字母变成“a”come came(掌握)give gaveBecome becamedrink drank(了解)begin began第10页/共27页剩余不规则动词第11页/共27页剩余不规则动词表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 第12页/共27页一般过去时肯定句变否定句第13页/共27页 Be动词类 否定句 实义动词类第14页/共27页1(be动词类)
4、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 before yesterday.肯定句:We were busy last week.否定句:We were not busy last week.第15页/共27页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
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