下面句子中的 what 意思是明确的：I don't know what he wants. (what=什么)What I want is a book. (what=……的东西)但是下面句子中的 what 是表示什么呢？好像不好判断：He made it clear what he wanted. 好像两种理解都可以吧！what=什么：他把...
Right from the start there was trouble with the Hubble. 是不是因为trouble是不可数名词，所以这里用单数谓语was? 是不是因为trouble是不可数名词，所以这里不可用冠词a, 也不能用复数troubles?但trouble前为什么不加冠词the？
在一篇听力里有一句话： A 16th century castle in Scotland is close to collapsing after lumps of soil were washed away by floods, threatening its foundations. 请问这里的threatening的逻辑主语是谁？
soil和floods好像不太对，还是说是"lumps of soil were wa...
The form of a fold in linen or cotton shows us the resilience or dryness of the fibre, the coldness or warmth of the material ... 亚麻布或棉布的折痕向我们展示了纤维的弹性或干燥性，这种材料寒冷或温暖的状态...想请教老师的是：这句话的coldness和warm...
It's one thing to read about these things and fire off a know-it-all screed in the comments section of some website, but it's different when it's on your doorstep.这句话中when引导的从句是主语从句还是时间状从？同理由此引申出：如果it作主句主语，从句...
It is just the mind-set of a person that makes the language hard.All we have to be thankful of all the blessing we've received.I'm afraid to bite off more than I could chew.mind-set不应该是复合形容词吗？如何区分复合形容词...
But a group is no organism physically added to its constituent individuals; it has no brain or stomach of its own; it must think or feel with the brains or nerves of its members. 但是，群体除了是由单个的人组成外，并不是真正具有生理作用的有机体，它没有自己...
1. However , it has been found that even people insensitive to a certain smell at first can suddenly become sensitive to it when exposed to it often enough. even是何种用法？when引导条件状语从句还是时间状语从句？有何区别？2. But what we forget—what our economy depend...