摘要:郑重声明,我写的是原创,从来不抄袭deepseek。温馨提示,网络上说的不一定正确。例如,already, for不一定用现在完成时态,过去式也可以的。今天,我谈的是只能用现在完成时态的情况。
郑重声明,我写的是原创,从来不抄袭deepseek。温馨提示,网络上说的不一定正确。例如,already, for不一定用现在完成时态,过去式也可以的。今天,我谈的是只能用现在完成时态的情况。
一,有since, ever 的时候,表示从过去到现在
I have taught English in the school since 1991.从1991年到现在,我一直在这个学校教英语。I have been able to play the guitar since I was seven. 我从七岁开始到现在一直会弹吉他。Have you ever been to the park?你曾经去过那个公园吗?温馨提示
since 表示原因,既然,与现在完成时态毫无关系。
Since everyone is here, let's begin.既然大家都来了,我们就开始吧。
二,在结构It's the first time that...中
This is the second time that you have been late.这是你第二次迟到。This is the first time that we have come to Beijing.这是我们第一次来北京。三,有下列词组的情况
in the past few years 过去几年以来
so far 到目前为止
up to now 到现在
I have been to many places in the past few months.几个月以来,我去过很多地方。So far it has rained for two months.到目前为止,已经下雨两个月了。They haven't completed the building up to now. 迄今为止,他们还没有建完这栋大楼。如果有其他情况,一般可以用多种时态。
来源:弄潮儿小美