小学英语语法知识点汇总：一般过去时
一般过去时主要用来表示在特定过去时间中一次完成的动作或一度存在的状态，也可表示过去的习惯动作。它与现在时间不发生关系，它表示的动作或状态都已成为过去，现已不复存在。它经常与表示过去的时间连用。如：I went to a park yesterday.I read a book last night. I watched TVyesterday evening.I went on a big trip last weekend.I failed my Chinese test.
☆注意☆ 一般过去时主要体现在动词的形式要用过去式，动词的过去式的构成规则有：
Ａ、规则动词① 一般直接在动词的后面加ed ；如 worked , learned , cleaned , visited② 以e结尾的动词直接加d ；如 lived, danced , used
③ 以辅音字母加y结尾的动词要改y为i再加ed （此类动词较少）如 study –studied carry – carried worry – worried （play、stay除外）④ 双写最后一个字母（此类动词较少）如 stopped
Ｂ、不规则动词（此类词并无规则，须熟记）小学阶段要记住以下动词的原形和过去式：
sing – sang , eat – ate ,see – saw , have – had , do – did ,
go – went , take– took , get – got , read – read , am/is – was , are – were , say – said , tell – told , come – came ,drink – drank
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