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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)。
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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)。
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