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three hours ago和before
英语容易混淆的词总结
答:
[误] He has come here for
three
hours
. [正] He came here three hours
ago
. [正] He has been here for three hours. come是瞬间动词,不是延续性动词,在肯定句中不能与表示一段时间的状语连用。而要与表示一段时间的状语连用,就要用延续动词。 与此同类的还有borrow/lend-keep; join-be in/at;...
my school was set up 4 years
before
为什么改为
ago
啊!!!
答:
ago
不能单独使用.而且,用ago时只能用一般过去时,如题"was set up".因为ago不能单独使用,所以用ago时一般前面都要有
three
days(weeks, months,years)如:I went to the dentist a few weeks ago.
Before
之前有"一段时间"时,指"距这段时间以前",和过去完成时连用。如:Jane told me that she ...
my father often takes a walk用
three
hours
ago
改写。
答:
My father took a walk
three
hours
ago
.
许多年前 怎么说对? 用
ago
还是
before
?
答:
1.
ago
表示“从现在起的若干时间以前”,意思是“距今……以前”,需和过去时或过去进行时连用。
before
泛指“从过去起的若干时间以前”,意思是 “距过去某时……以前”“与其……(毋宁)”,常和完成时连用,尤其在间接引语中,如:I visited him
three
days ago, but he had gone to Shanghai ...
现在完成时能
与before
搭配么
答:
现在完成时能
与before
搭配。 当before词形为副词作时间状语时,往往用现在完成时。 例如:I have never seen such a kind man before. before的用法: 一、...He finished
three
days
ago
. 他三天前做完了工作。 They finished a long time ago. 他们老早就完成工作了。 当没有特定指明的时间,现在完成时和简单...
Sam left the Central Park
three
hours
ago
改为同义句
答:
Sam has been away from the Central Park since
three
hours
ago
或者 Sam has been away from the Central Park for three hours。完成时态中是与可持续动词的时间状语为:1.since three hours ago 2、for three hours。
现在完成时 过去完成时
答:
I wrote the letter last week and I posted it
three
days ago. 我上周写的那封信,3天前寄出的。 (3)现在完成时表示的动作或状态延续到现在并可能延续下去,而一般过去时则单纯表示过去某段时间内的经历。 比:It has rained for five
hours
. 雨已经下了5个小时了。 It rained for live hours yeste...
a month
ago 与
a month
before
的区别 意思上 语法上 急啊!
答:
ago和before
有什么不同?1.ago表示“从现在起的若干时间以前”,意思是“距今……以前”,需和过去时或过去进行时连用。before泛指“从过去起的若干时间以前”,意思是 “距过去某时……以前”,常和完成时连用,尤其在间接引语中,如:I visited him
three
days ago, but he had gone to Shang...
英语语法问题
答:
Where did your brother study
before
he joined the army?5.在语法中,
ago与
一般过去时连用,但在since
three
years ago这类短语中能与现在完成时态连用。因为three years ago构成一个名词短语,共同作since的宾格,意为"自从三年前以来"。例如, He has been here since three years ago. I have ...
Sam left the Central Park
three
hours
ago
改为同义句
答:
Sam has been away from the Central Park for
three
hours
.
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