...ir song output at night and during the day they are still singing. Singing is a costly behaviour and it takes energy. So by increasing their song output, there might be some costs of energy. ”我对其中的Singing is a costly behaviour不理解,behaviour 不是不可数名词吗?它前面怎...
Alice was beginning to get very tired of sitting by her sister on the bank, and of having nothing to do: once or twice she had peeped into the book her sister was reading。of having nothing to do做什么成分?
With her intelligence and patience,she overcame all difficulties and finally qualified as a doctor.我有两个问题想问一下老师:1,With her intelligence and patience 是表示方式还是原因,也就是在翻译时,是 "以她的才智和耐心" 还是"由于她的才智和耐...
It is the first time that从句
It is high time 从句
It takes sb some time to do sth
It is no wonder that
It is like sb to do sth
it is up to sb to do sth
这些句子中的that从句或是不定式结构是主语从句或者是真正主语吗?it是虚义词还是形式主语?怎么用...
能否说Under too much pressure,it is universal for our
students to pay less attention to health?因为主语是it 而under too much pressure修饰的是students而非主语it 所以我在想这个句子到底对不对这个句子是我自己想的在阅读里看到过一个类似的句子:For th...