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since ago用什么时态
英语所有
时态
和讲解
答:
这种
时态
的特点
是
强调已部分完成的动作仍将继续进行下去。现在完成进行时通常和时间段状语连用,如for two days,
since
early morning, these few days等。与现在完成时相比,现在完成进行时明确表示已部分完成的动作仍将继续进行。比较:I have been writing letters for an hour.整整一个小时我一直在写信。(仍将...
烦请告诉在什麼情况下用"
SINCE
",它的主要用法
是什
麼???
答:
句3:Two years have passed
since
his father died.句4:His father has been dead for two years.句5:His father died two years
ago
.2. since既可作连词后接从句(句2,3),又可作介词后接名词(句1)。3. since引起时间状语从句中通常用一般过去时(句2,3)。间或可以用完成
时态
:It...
since
ten years ag就
用什么时态
答:
现在完成时
since
3 years
ago是
时间点还是时间段
答:
时间点
since
后必须接时间点,for接时间段
SINCE是
“自从某一时间点开始到现在”since 1900 意为从1900年开始到现在 FOR 表示已有一段时间 for two years 已有两年了
过去时和现在现在完成时
答:
I have been working here
since
2001. 2. 现在完成时和现在完成进行时都可以表示一段时间内进行的动作.例如: Mr. Smith has taught English for 20 years. Mr. Smith has been teaching English for 20 years. 以上句子用现在完成时与现在完成进行时,含义上没有
什么
差别,两种
时态
可以互相换.但两种时态也存在...
before until
since
分别前后
用于什么时态
答:
until的用法同before的第一种和第三种,不过翻译不同。since后加过去时间点或从句,从句要求是一般过去时,且
since是
现在完成标志,如I have been lived here since 2000或I have been lived here since ten years
ago
。since可以和for互换,如I have been lived here since ten years ago就等于I ...
three days
ago
和
since
three days ago的区别
答:
时态
不同
since
three days
ago用
现在完成时,因为since后面接过去时间,表示从过去某时间开始,一直到现在为止,three days
ago是
过去时间,所以since three。
since
的用法。
答:
4.
since
亦可用作副词.如:(12) Her husband died ten years
ago
but she's since remarried . 她的丈夫于十年前去世,但是她后来又结婚了.(13) He came to England three years ago and has lived here ever since . 他三年前来到英国,从那以后就一直住在这里.
请教
since
的用法!!!急!!!
答:
(10) I have not heard from him
since
writing last . 自上次写信以后,我没接到过他的信.How long is it since you wrote to your sister? since做介词,意思与第二句差不多,但是强调的重点还有语气不同!这句强调的是现在!How long
ago
did you write to your sister?这句强调的是...
sinceago用
延续性动词吗
答:
用。
用于
延续性动词,因为这个短语的意思
是
自从何时起。延续性动词又名持续性动词,它表示能够延续的动作,这种动作可以长时间延续下去或产生持久的影响。
棣栭〉
<涓婁竴椤
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