...没绕过来，希望老师能帮忙讲解下：1.这是A和B在谈论C(即they)是否知道这个事故，此时A和B并不知道C到底知不知道，然后A对B说：If they(=C) were
aware of the incident, they would have told us by now. 我理解这是个真实条件句，主句是对过去的...
a great deal, a lot 这两个词都可以作副词和名词，意思一样，它们有区别吗?作副词：She’s feeling a lot better now.The boy knows a lot about history.Now the old man is a great deal better.作名词：Thanks a lot She seemed to have suffered a great deal.
... know it needs water and air to survive.This is history as it was lived by the men of the 505th Regiment.最近偶然间读到南科大的一篇有关于 as一词的学术论文。论文中把传统语法中的“as引导比较分句修饰名词时，as后面的从句可以看成定语从句”这...
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？
下面的句子摘一篇阅读理解文章：
The Globe, located in the bottom level of McMillan Hall, is available for relaxing, studying, cooking, and eating. Monthly activities are held here for all international students. Hours are 10 am to 10 pm, closed on Sundays.
句中的is available ...
...ing a dazzling variety of life, we have to remember that vast forests like these, often thousands of miles away, are crucial to every one of us, not least because they help to stabilise the climate and maintain the water cycle.请问：often thousands of miles away 这个插入语是定语从句还...
—Do all the teachers agree on the idea to put up a _______ lab building? —_______, Mr. White and Miss Green are against it. A. six-storeys; Yes B. six storeys; Yes C. six-storey; No D. six –storeying; No 答案为C。请分析一下这个题。这种情况用什么作定语？six-storeys, six ...
...的两句话不太明白：1. Why did you agree to having decaff coffee in the kitchen when I know you don't like it… and neither do I!请问：为什么不是agree to have？2. Well, we'll find out later on in the show if that's right or not. 今天在学校老师刚讲了如果...
... from a supermarket. Instead, as customers, we might order our food, using the internet and have it delivered to our residences. Maybe an automatic recorder would be placed when food is removed from a refrigerator. Preparation of food might be eliminated but because people enjoy eating, maybe there ...
...t even be outraged. Such behaviour is regarded as“all too human”, with the underlying assumption that other animals would not be capable of this finely developed sense of grievance. But a study by Sarah Brosnan and Frans de Waal of Emory University in Atlanta, Georgia, which has just been publis...
尊敬的各位老师：It is time for us to rethink the paths we encourage our youth to take
and shine a spotlight on the fact that manufacturing is cool. FORBES: Have We Led Our Children Astray by Sending them to College?这句来自于福布斯的这句英语里的paths与we之间的关系词为...
...o 的文章Snapshots of New York’s Mood after 9/11）Commentators called the attack a second Pearl Harbor, until now our most tragic hour.译文：新闻评论员称这次袭击是第二次珍珠港事件，该事件时至今日一直是我们最悲惨的时刻。请问老师，以上句子until...
...到，为什么不能填 to apologize表示目的呢?再比如：She read the letter through before sending it, _______ (check) for spelling mistakes.答案：checking，分析是：这里是用现在分词表伴随。疑问：但为什么不填不定式 to check 呢？可以理解为用不定式表...