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Because of the development in technology and the increase in people's wealth, people's life expectancy has been increasing all the time.
“由于技术的发展和人们财富的增加,人们的预期寿命一直在不断增长”的意思。
英语现在完成进行时的结构是:**have/has been + 现在分词**。- **示例**:I have been reading this book for two hours.(我已经读这本书两个小时了。)- **用法**: - 表示从过去某一时刻开始一直持续到现在的动作,这个动作可能刚刚结束,也可能还在继续进行。例如:He has been working in this company since 2010.(他从2010年起就一直在这家公司工作。) - 强调动作在一段时间内的持续性和重复性。例如:They have been meeting regularly for the past few months.(在过去的几个月里,他们定期见面。)- **与现在完成时的区别**:现在完成时强调动作的完成或对现在的影响,而现在完成进行时更强调动作的持续进行。例如,“I have painted the wall.”(我已经把墙刷完了,强调完成);“I have been painting the wall.”(我一直在刷墙,强调动作一直在持续)。
By 潇洒停磨5
22 ratings
Because of the development in technology and the increase in people's wealth, people's life expectancy has been increasing all the time.
“由于技术的发展和人们财富的增加,人们的预期寿命一直在不断增长”的意思。
英语现在完成进行时的结构是:**have/has been + 现在分词**。- **示例**:I have been reading this book for two hours.(我已经读这本书两个小时了。)- **用法**: - 表示从过去某一时刻开始一直持续到现在的动作,这个动作可能刚刚结束,也可能还在继续进行。例如:He has been working in this company since 2010.(他从2010年起就一直在这家公司工作。) - 强调动作在一段时间内的持续性和重复性。例如:They have been meeting regularly for the past few months.(在过去的几个月里,他们定期见面。)- **与现在完成时的区别**:现在完成时强调动作的完成或对现在的影响,而现在完成进行时更强调动作的持续进行。例如,“I have painted the wall.”(我已经把墙刷完了,强调完成);“I have been painting the wall.”(我一直在刷墙,强调动作一直在持续)。

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