问题 介词as 还是for

At that time， many farmers could only afford bread and butter as  their meal.这是某资料上的一句话，我觉得as应该改为for更为妥当，只是没找到相似例证。盼望专家老师指导，谢谢。

问题 doing 还是to do

1.it is a waste of time/pleasure/fun/use/good doing2. there is no point /sense/harm/use/good doing sth以上两个结构中doing可以改为to do 么？有there is no hurry/need doing 的结构么，看到语法书里有这样的总结，有点乱。谢谢！

问题 介宾短语在不及物动词后是什么成分（状语?补语?还是其他?)

...是接在名字性词后面的吗?如果谓语后面可以接补语那么定语后面可以接吗?形容词后面可以接吗?2恳请告知介宾短语做补语和状语 定语 以及其他成分之间的区别?补语和被补充成分要存在什么关系 怎么来区别抱拳了！

问题 the world指“全世界的人”时表单数还是表复数

...All the world knows that pollution has become a serious problem. 全世界的人都知道污染已成了严重问题。既然是“全世界的人”，就应该是表示复数意义吧？那为什么句中的谓语动词用了单数knows呢？请问专家老师：the world表示“全世界的人...

问题 如何识别被修饰限定的中心词

...还是 allege use,是否有规律可循。另外，如果要将这个后置定语改为修饰限定allege use, 或者重新给allege use 加上限定成分，又该是什么样子的。想通过对比这两种情况，来尽可能牢固掌握名词+后置定语的结构，不知是否行得通。The...

问题 How well从句

How well the predictions will be validated by later performance...没写完，主要就是前面这句话如何翻译。

问题 名词性从句与主句子区别

问题 unworried作为形容词，那么后面的by怎么理解

The Fed is rightly unworried by cosmetically higher inflation that reflects what happened a year ago. by引导施动者还是作“原因”解释？谢谢各位老师！

问题 本句中的only修饰的是谓语动词还是because of ?

...的only是修饰谓语动词 may have become 还是修饰because of ?感觉从句意上理解应该更接近于后者，上面这个句子如果改为Living on the ground may have become an option in the first place,only because of one key event: the extinction of dinosaurs.句意会改变吗...

问题 什么时候用the什么时候用a

Recently I sent a postcard to my sister who was living in another town.My sister did not receive it and I was wondering  why.Then one morning the postman brought a letter for me.,想问一下，为什么postman前用the不用a，前文他没出来啊。谢谢帮忙！

问题 on用法质疑

朗文just词条有这句话，It's just on three o'clock.这么不应该用at three o'clock吗？

问题 关于 lost 用法与理解（新概念三第36课）

... His unit was lost and all records of him had been destroyed.  他所在的部队被击溃，他所有的档案材料被毁于战火。 请教关于lost 这个词，应该怎么理解？如果是动词 lose 的过去分词，那么这里就用的是被动式 the unit was lost, 部队被打败。为...

问题 英语难句的理解与翻译

...chool, around 20% of youngsters work best with background music, 10% excel when allow to break up their work with short walks around the room while up to 80% can concentrate better if allowed to fiddle with a small object.老师， 红色部分我没有看懂，不知道怎么翻译。烦请指导...

问题 一般过去时还是过去完成时的区别

Many people who had seen the film were afraid to go to the forest when they remembered the scenes in which people were eaten by the tiger.老师：上面were eaten为什么不是过去完成时had been eaten呢？谢谢。

问题 putting on pace

When it comes to putting on pace, some electric vehicles rely not only on a battery to deliver the necessary wattage, but also on a second source of power called a supercapacitor. 这里的putting on pace，看翻译是“加速”的意思，但我翻了词典并没有查到。另外，请麻烦...