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问题 an average of和the average of的用法与区别

An average of just 15 cm of rainfall last year has made it the driest year since 1850.各位老师好,请问:1.这个句子中为什么用an average of,而不用the average of呢?2.请问an average of和the average of用法有什么区别呢? 3.我查找的时候发现有人说an av...

问题 一道关于过去完成时的题

Within minutes of the Pulitze news conference last Monday,Daniel's website biography ________to include the prize. 一道单选时态题 答案是 had been updated 为什么是这个 过去完成时应该要过去的过去 而这里显然更新是在conference后的。

问题 这两个seem翻译上有什么区别

It seemd to be a long time .... It seemd to have been a long time ... 这两句的时态不同,但意思感觉是一样的,怎么在翻译上把它们区分开来?

问题 现在完成时的疑问

...持续性非终结动词对吗?3.The refugees have come to this country since the conflict began.这句话我理解,因为主语是复数,所以可以用现在完成时+持续性时间状语,表示come的动作是重复事件,但如果是单数主语则该用现在完成进行时对吗?4...

问题 如何理解非谓语动词被动语态的动宾关系(被动关系)

非谓语动词短语的被动时态,是不是跟它修饰的名词,作宾补,作状语(与主语),有动宾关系?有被动形式就是动宾关系吗?

问题 to be doing 怎么理解

例: The child doesn't appear to be learning quickly.1。不定式不应该表示还没发生的事情吗? 为什么和进行时态的be learning搭配呢?2。如果这个句子否定 not to be learning 而不是 doesn't appear ,意思一样吗?

问题 一般现在时的用法

...个句子用一般现在时的理由是什么?        那下面get的时态是否正确?        The bridge gets/got its name from its designer.        谢谢老师!

问题 为什么用动词的过去式来表示虚拟

英语的虚拟语气总是用过去式或过去完成时来表示,这是为什么呢?我的意思是为什么不可用其他时态来表示呢?

问题 within+时间段

...句子within a couple of years, I'd given it up为什么使用过去完成时态表达。谢谢老师!

问题 It was a long time until...还是It was a long time be

A man escaped from the prison last night. It was a long time ____ the guards discovered what had happened. A. before   B. until   C. since   D. likely 答案为before,请问可否选择until?

问题 what I’d call “mini-zoos” 是名词性短语还是同位语从句

Since we were not planning to spend so much on a duck any time soon, visiting them in one of these places—what I’d call “mini-zoos”—seemed to be the perfect choice.这个句子中,what I’d call “mini-zoos”是名词性短语,还是同位语从句?要怎么分析?

问题 句中大写的WAS是想表达什么含义

It WAS a fun appraisal.您好!想请问一下句中单词大写想表达什么含义,谢谢!是为了强调过去时态?还是表示遗憾、舍不得?还是表示已经过去了,不要再提了?

问题 关于not…until的问题

关于not…until的时态用法: 1.请问是We can't move into the new house until next week. 还是说We won't move into the new house until next week. 关于not…until用法: 请问until在后接句子或时间短语时词性有无变化? 管理员辛苦,老师辛苦了!谢谢~

问题 关于限定性定语从句和非限定性定语从句连用的问题

...and,容易产生歧义,容易看成on which的先行词是mountain。Since enthusiasts were becoming more, usually resulting in a crowed when ascending, people came up with an idea to build an artificial wall that imitated the surface of a real mountain and on which most of our competi...

问题 be full of的用法

be full of中的be用什么时态?be full of中的be用一般现在时还是一般过去时?be full of中的be指什么?is full of和was full of的区别,什么时候用is full of,什么时候用was full of?