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(单词翻译:双击或拖选)
1) 两个动作如按顺序发生,又不强调先后,或用then,and,but 等连词时,多用一般过去时。
When she saw the mouse,she screamed1.
My aunt gave me a hat and I lost it.
2 ) 两个动作相继发生,可用一般过去时;如第一个动作需要若干时间完成,用过去完成时。
When I heard the news, I was very excited.
3) 叙述历史事实,可不用过去完成时,而只用一般过去时。
Our teacher told us that Columbus discovered America in 1492.
点击收听单词发音
1 screamed | |
v.(因伤痛、害怕、激动等)尖叫 ~发出尖叫声( scream的过去式和过去分词 );(向某人或为某事)高声喊;发出大而尖的声音;呼啸而过 | |
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