作业帮初二年级英语时态 现在完成时
来源：学生作业帮 编辑：作业帮 分类：英语作业 时间：2024/05/10 08:53:07
初二年级英语时态 现在完成时
1.先解释各句子吧：我们正谈你就来
2.have been doing和have done有什么区别
3.现在完成时的过去式had什么时候用得到?练习题总是见不到
1.先解释各句子吧：我们正谈你就来
2.have been doing和have done有什么区别
3.现在完成时的过去式had什么时候用得到?练习题总是见不到
1.翻译"No sooner have we begun talking than you came in."
2.have been doing是现在完成进行时,表一个从过去持续到现在的动作,强调进行状态；have done是已经完成.eg：We have been studying here for nearly 3 years. We have studied here since three years ago.
3.现在完成时的过去式,通俗地讲就是“过去的过去”,这时就用had.eg：In my youth,I had ever been Peking.(只在小时候的过去）
2.have been doing是现在完成进行时,表一个从过去持续到现在的动作,强调进行状态；have done是已经完成.eg：We have been studying here for nearly 3 years. We have studied here since three years ago.
3.现在完成时的过去式,通俗地讲就是“过去的过去”,这时就用had.eg：In my youth,I had ever been Peking.(只在小时候的过去）