I have been up since two hours ago.为什么这句话是对的?现在完成时不是不能跟过

I have been up since two hours ago.为什么这句话是对的?现在完成时不是不能跟过
不是不能跟过去的时间连用吗?

zhangzhen 1年前已收到1个回答举报

yangliu369 幼苗

共回答了22个问题采纳率：77.3% 举报

在这里since two hours ago,有了since这个词,since two hours ago就表示一段时间.懂了吗?

1年前追问

zhangzhen 举报

不是for才跟一段时间的吗？那麻烦说说跟since的区别/

举报 yangliu369

for+一段时间, since+时间起点(具体过去时间,如:1999; last+时间; 一段时间+ ago;一般过去时从句). 如: I have been here for over 10 years. I have been here since 10 years ago/I came here

zhangzhen 举报

那你能解释一下下面是怎么回事吗?现在完成时不能和表示过去的时间连用，如yesterday,last year,two days ago,just now,in 1976

举报 yangliu369

现在完成时表示从过去一直到现在完成的动作，当然不能和过去连用了。

可能相似的问题

they have been here ___ two hours ago.A.for B.since C.before

1年前2个回答
He has been out for two hours.(同义句) Two hours_____ _____sinc

1年前1个回答
1. I’ve been swimming since two hours ago . (就画线部分提问)

1年前1个回答
改现在完成时I got up two hours ago.I ( ) ( ) ( ) since ( ) ( )

1年前2个回答
I got up two hours ago.改现在完成时 I ( ) ( ) ( ) since ( ) ( )

1年前2个回答
He has been______(sleep)for two hours since he went to bed.

1年前2个回答
英语新辅教导学用for或since填空1.He’s been waitingfor you ___two hours.2

1年前1个回答
The meeting has been off for two hours.It______since_______.

1年前4个回答
句型转换We have been here for three hours.It () three hours sinc

1年前4个回答
用for或since填空1.he’s been waiting for you ________ two hours2.

1年前2个回答
i have been wacthing TV since 3 hours 5个同义句

1年前4个回答
I have been down for two hours.句型转换 I have been down ---- --

1年前3个回答
判断正误小题1:I have waited for her since two hours.

1年前1个回答
we have been there for about two hours.

1年前2个回答
I have been watching TV for two hours.____is two hours____I

1年前2个回答
I have been down for two hours.改为同义句

1年前2个回答
at the school gate,they,have waited,since two hours ago,for

1年前1个回答
Two hours _(have) passed since Tom left here,填空后并请说明为什么

1年前4个回答
47.She ______ up for two hours.A.has got B.has been C.has be

1年前3个回答

你能帮帮他们吗

精彩回答