...定式结构作主语并能转换为先行it-结构。例如：That questionis difficult to answer = to answer that questionis difficult = It is difficult to answer that question.另一种情况是，不能以不定式结构作主句主语，因而不能用先行it-句型予以转换。例如：Th...
N-COUNT 样品;样本 A specimen of something isan example of it which gives an idea of what the whole of it is like.A specimen of somethingan example of it这两个of分别表示什么关系？我个人认为是表示“关于……的”。
...mber of less common, although equally important causes of infertility is worth being aware of.2. A number of less common, although equally important causes of infertility deserve being aware of.3. English pronunciationis worth teaching by a teacher.4. English pronunciation ...
Of course, not everyone is over stressed. “It’s a convenient shorthand to say we’re all time-starved, but we have to remember that it only applies to , say, half the population.”当然，并非人人感到时间过度紧迫。“说我们都缺少时间只是随意讲讲，我们应该记住...
... to guess or
what questions to skip.为了表达状态的转换，改成了is knowing，比如 She is being smart.意思是她可能平时不聪明，但现在突然聪明了一下。这里when表示什么时候怎么怎么样，不是“当……时候”。而且“当…的时候”不严格表...
A：Mike, what do you knowabout writing a business plan?B：Plenty. What type of plan are you writing?A：Well, I have this great new idea that I think it will make a motza. B：Want to let me in on the secret?如何理解在一个句中出现的两个介词（in on）的用法？
The introduction of new screen formats was put off for a quarter century, and color, though utilized over the next two decades for special productions, also did not become a norm until the 1950s.请问这句话的意思是1950年以后颜色就成为了规范吗?
1.The sheer size of the cathedral isa constant reminder of the power of religion.2.The recent outbreaks of choleraare a timely reminder that this disease is still a serious health hazard...这两个句子中，reminder o f和 reminder that，of 和 that 后面的成分是同位语吗？
FEMALE STUDENT: I wish I could say another time would be OK but…you know how it is… everybody’s already got commitments… for the whole semester.FEMALE STUDENT: 2: 30 or 3: 30 would probably be OK but I don’t think we could go much outside that…FACILITIES MANAGER: Well, che...
... I enjoyed, I added
healthy foods to my meals. I could still have a burger nowand then, but I
would add a salad or an apple.Finally,
I stopped comparing myself with actresses and models and
looking for things that were wrong with my face or body. Instead, I made a
list of the things I liked about m...
...您举过的一个例子：“A、B、C三个人对话。A问到，Where is Tom？B说，I don't know
where he is. C说，I know where he is. 在这个语境中，虽然C说的是肯定句，你也必须理解C说的这句话中where从句是疑问分句，而不是名词性关系分句。”可在...
As the neighbours complained of the noise, my husband spent weeks training him to press his paw on the latch to let himself in. 1.这里为什么不用complain about?2.complain about 与 complain of 的区别？
请问以下两句话加上特定时间状语是对的吗？ 【第一句】10 years ago, there has been a lot of pictures on the walls in this room.... 【第二句】 This place remains the same as it has been twenty years ago.