By the time they got to the guake-stricken area,the rescuers--------what difficulty they would have helping the victims out.A.sensed B.had sensed C.had been sensing D.were sensing请问：为什么?

来源：学生作业帮助网 编辑：作业帮 时间：2024/05/04 22:36:40
By the time they got to the guake-stricken area,the rescuers--------what difficulty they would have helping the victims out.A.sensed B.had sensed C.had been sensing D.were sensing请问：为什么?

By the time they got to the guake-stricken area,the rescuers--------what difficulty they would have helping the victims out.A.sensed B.had sensed C.had been sensing D.were sensing请问：为什么?
By the time they got to the guake-stricken area,the rescuers--------what difficulty they would have helping the victims out.
A.sensed B.had sensed C.had been sensing D.were sensing
请问：为什么?

By the time they got to the guake-stricken area,the rescuers--------what difficulty they would have helping the victims out.A.sensed B.had sensed C.had been sensing D.were sensing请问：为什么?
因为他们到了之后才意识到救援很困难. 都是讲述过去, 因此直接用过去式即可. 主句不存在动作上的早先完成

答案选B
很简单，记住了，只要看到有by或者by the time引导的时间状语，后面的主干句要用完成时。若by后面是现在时，主干句用现在完成时；若by后面是过去时，主干句则用过去完成时。本题属后者。
本句翻译：当他们到达那个guake-striken区域时，营救者们就已经感觉到了把受害者们救出来所要面对的困难。...

全部展开

答案选B
很简单，记住了，只要看到有by或者by the time引导的时间状语，后面的主干句要用完成时。若by后面是现在时，主干句用现在完成时；若by后面是过去时，主干句则用过去完成时。本题属后者。
本句翻译：当他们到达那个guake-striken区域时，营救者们就已经感觉到了把受害者们救出来所要面对的困难。

收起

一般情况下是by the time 后加过去完成时,这题不能因思维定势选B,因为是earthquake先发生,故后半句不能用过去的过去.

他们到达受损灾区后 营救人员才发现把难者营救出来是多么困难
是在他们带大之后的一个行为 而got to 是用的一般过去时 所以用一般过去式
如用had sensed 则表明 在got to 的以前就已经感觉到 had been sensing 就是过去一直在感觉到 是个持续性的 were sensing 是指在过去的一个准确时间正在感觉到 后面一般加时间状语 但用在这也...

全部展开

他们到达受损灾区后 营救人员才发现把难者营救出来是多么困难
是在他们带大之后的一个行为 而got to 是用的一般过去时 所以用一般过去式
如用had sensed 则表明 在got to 的以前就已经感觉到 had been sensing 就是过去一直在感觉到 是个持续性的 were sensing 是指在过去的一个准确时间正在感觉到 后面一般加时间状语 但用在这也不符合语境

收起

一开始会误以为是选B吧。。
By the time表示的是到什么的时候，而后面的从句里显示的是过去的时间。但是你想一下，救护人员是先明白有多困难还是先到达那个地方呢？句意里应该是先到那里然后才明白。所以选A
当然，By the time还是多用完成时的。不过还是得看句意。。...

全部展开

一开始会误以为是选B吧。。
By the time表示的是到什么的时候，而后面的从句里显示的是过去的时间。但是你想一下，救护人员是先明白有多困难还是先到达那个地方呢？句意里应该是先到那里然后才明白。所以选A
当然，By the time还是多用完成时的。不过还是得看句意。。

收起

B.had sense -dhad 已经是过去式不用再加ED
C.had been sensing完成时。
D.were sensing were是 are和am的过去式

by the time she got to by the time she got up By the time they got to the cinema,the film?Ais to finished Bhas been finished Chad been finis By the time you arrive there,they will have got ready for the journey帮忙翻译下, 动词填空：She ( ) by the time he got back.(go ) By the time that we got there,he was out. They got to the station on time yesterday的翻译 By the time I got outside,the bus had already leftBy the time在By the time I got outside,做的是什么成分 by the time I got outside,与when I got outside 的 区别 By the time they got to the guake-stricken area,the rescuers--------what difficulty they would have helping the victims out.A.sensed B.had sensed C.had been sensing D.were sensing请问：为什么? She had gone by the time he got back 其中的by the time 能用when 或while替换吗 Got You by The 英语翻译practical value by the time they were finished. Most students (earn )____sixty credits by the time they graduate by the time的近义词在By the time Dick got to class,his math teacher had already started teaching.中，by the time 的近义词是？ They ____ finish the job by tomorrow. A. have got B. have got to C. got to D. have By the time he got to the airport,the plane had taken off.改为一般疑问句 By the time we got to the cinema,the film_____(begin)