在拼写上大多数动词的过去式和过去分词一样,但用法不同; 动词的过去式通常用来表示过去的行为,状态,或过去发生的事 例:He got up at 8:00 yesterday.(他昨天8:00起床) 动词的过去分词主要有三种用法: 1.作形容词用 例: the broken desk(坏了的桌子), the worried mother(着急的母亲) ２．放在be动词后面构成被动语态，表示被动 例：The work was finished yesterday.(这项工作昨天被完成了．) The classroom is being cleaned.(教室正在被打扫．) ３．放在助动词have/has/had后面，构成完成时，表示已经．．． 例：He has gone to Beijing.(他已经去了北京．) I haven't seen you for three years.（我已经三年没见到你了．） They had made great changes since they went to college.(自从上大学后，他们发生了很大改变．)
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