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问题 How long before…是省略句吗

总感觉下面的句子有点不对：How long before we can see the new ski lifts in action? 它是省略句吗？比如省略了 is it：How long is it before we can see the new ski lifts in action? 如果有这样的省略，它的规律是什么？谢谢！

问题 关于强调句用is还是was的疑问

It's you and Tom that didn't come yesterday.这句话是不是错了，应该用was？It is the money that he gave me.这句话有可能是强调句，也有可能是定语从句。It was the money that he gave me.这句话只能是强调句。

问题 关于并列状语的问题

...ressed from his parents, and  realizing that he has wasted too much time, the boy is determined to stop playing1、为何这句当中and后不能用to have realized？表主句谓语之前的动作，按正常逻辑来讲，应该是先意识到，再去停止游戏。2、句中realizing 还原成...

问题 用作介词from的宾语却用了关系副词where

The 14 countries where the passengers were from are listed below.上句中关系词为什么不用关系代词 which，而用了一个关系副词 where？用作介词 from 的宾语却用了关系副词 where，这不奇怪吗？

问题 though在句中的词性和理解

老师好！Though much more difficult to understand than the traditional paintings, they were more thought-provoking.我是这么理解的，though本身既能做连词也能做副词，在本句中，由于“Though much more difficult to understand than the traditional paintings,”缺少主语...

问题 主句为过去时态时从句一定要用过去时态吗

请问这句话用 were、are 哪个更好？The students were told that they (were / are) to meet the school gate at two this afternoon.主句为过去时态时从句一定要用过去时态吗？但要注意句子中的 this afternoon。

问题 过去分词(表被动)作状语什么时候有be

Looked at this way，the present situation doesn’tseem so gloomy.Being looked at in this way，the situation doesn’tseem so desperate.为什么这两个句子都差不多，主语都是situation，也都是被看，为什么一个句子有Be一个没有呢。这是我在资料上出现的两个...

问题 如何判断 to 是介词还是不定式符号

我查了剑桥的例句：Police are still no nearer to solving the crime. 警方在侦破此案上依然没有取得任何进展。在字典例句中，前面是主系表，to solving the crime 是状语。我这样理解对吗？想知道这里不可以用to solve 是因为讲不清不定式在...

问题 before主句的时态可以是现在完成时吗

老师好！向老师请教一个句子：Though they’ve been around long before we walked on the earth, sharks still attract us to this day.请问：they’ve been around long before we walked on the earth 中的 have been around 的时态是否合理，是否应改为had been around？

问题 英语长难句分析一例（重点是as regularly）

Regularly, for years, Maupassant used to bring him work to criticize, and as regularly  Flaubert insisted that the work should be thrown into the fire.老师，帮我分析一下。谢谢老师。

问题 形容词短语作状语的具体理解

...elp. 她走了过来，很想帮忙。We stayed up late, anxious to finish the work. 我们待到很晚没睡，亟于完成这项工作。He arrived home, hungry and tired. 他回到家里，又饿又累。She lay awake half the night. 她有半夜没睡着。

问题 look at(寻找）与look for的区别

The meeting really wants to look at what could be effective treatments for  people  who have the virus.这里的look at是寻找的意思吗，为什么不用look for？

问题 这个句子该怎么分析

Surrounding the column are three sepal and three petals,sometimes easily recognizable as such,often distorted into gorgeous,weird,but always functional shapes.请问1.“sometimes easily recognizable as such,often distorted into gorgeous,weird,but always functional shapes.”这个是三个并列的...

问题 如何理解终结性持续动词和时间状语的搭配

The fruit ripened for four weeks. 果子已经成熟了4个星期？但是ripen是终结性持续动词，动作具有持续期，最终导致状态的改变。动作没有结束？不是finish但是这句The fruit ripened in four weeks.果子4个星期后成熟吗？动作结束finish这两句...

问题 名词可以作一个句子的同位语吗？

The Helen Woodward Animal Center warned San Diego County residents Thursday to watch out for coyotes as the weather gets warmer, an announcement spurred by multiple coyote attacks and encounters in recent weeks.请问老师们，这里的an announcemet在意思上我认为是指前面warned的内...