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By 过去完成时

英语中用过去完成时的标志: 1、句中有特定的时间状语 ( 1 ) by + 过去的时间点.如: I had finished reading the novel by nine o'clock last night. 昨晚9点我就读完这本小说了。 ( 2 ) by the end of + 过去的时间点.如: We had learned...

by在过去完成时翻译成 在……之前(介词)! 例句: By the time I went outside,the bus had already left. 我到外面去的时候,车已经开走了。 We had learned over two thousand English words by the end of last term. 到上学期末我们已经学了...

by the time有一种用法,表示“到。。。为止”,一般和完成时连用。 如I had finished my homework by the time my mother came back. 当我母亲回来的时候我已经完成了我的家庭作业。 当表示“。。。的时候”可以和when 互换。 如I will leave by th...

by the time引导的时间状语从句用一般时,主句用完成时或者一般时。如: By the time you get home tomorrow, it will be / will have been 9: 00 pm.. By the time he arrived at home, it was / it had been dark. By the time we got back fr...

都表示过去的过去的含义 主句的谓语的动作在从句谓语动词之前已完成 we had had supper before we went to the cinema. I had fininshed my homework by the time I went to bed.

by后面跟表示过去的时间, 句子就用过去完成时 by后面跟表示将来的时间, 句子就用将来完成时

好像有三种情况,of后面加一般现在时,主句就用现在完成时 of后面跟的是一般过去式,主句就用过去完成时 of后面跟的是一般将来时,主句也用一般将来时

时态的选用有时要从篇章来考虑。在这一段之前,文章应该是以一般过去时为主,通过描写每个时间节点所发生的事情,来说明自由女神像的历史。这一段中,前半句有一个时间点,就是by the end of October 1886, 很自然就用到过去完成时。而接下来的a...

现在完成时 1.表示过去发生的但对现在有影响的动作,可以不用时间状语。也可以和一些表示不定过去的时间状语连用,比如already,yet,ever,never,just,once,recently 等。 1). i have been to Peking many times. 我多次去过北京(现在对北京有所...

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