请教老师们：As you go off to college ，exciting new worlds will open up to you.
（1）这里的off to 是不是双介词，也就是off family to college对吗？
（2）后句中open up to 中to可以改为for吗？为什么呢？
先谢谢老师们了！
Boas felt that the culture of any society must be understood as the result of a unique history and not as one of many cultures belonging to a broader evolutionary stage or type of culture.这里并列的是one of many...吗？
...tisfaction.2）The King lived a long life of exile.以上关于2个of短语的句子，疑问是：第一句是否等同于They whistled a low meditative satisfied whistle ?第二句是否等同于The King lived a long exiled life ? 其实我的疑问就是，把of + n 后置改成相同含义的...
...（被动语态）The composition is well written.这盘作文是写得好的（系表结构）I have been driven to it.我是被迫至此（被动语态）The flowers will be planted next week.下周种花（被动语态）老师，不知道上面句子的理解对不对，有时理解我都会出...
下面这个句子中的 language 是不可数的——因为它前面没有用冠词和物主代词，本身也没有用复数：Many people think that children learn language by imitation. 很多人认为儿童通过模仿学语言。我的疑问是：如何区别分 language 何时可数何时不...
Perhaps the most riveting episode of "less-bad" advertising ever seen occurred, amazingly enough, in the industry that most people assume is the master of avoiding saying anything bad about its product.句子里seen occurred，为什么是过去分词？用occurring呢？
要求：使用下面的公式创造非真实条件句。1. (If) simple past/were + (Main) would,etc +inf 2. (If) were to+ inf+ (Main) would, etc+inf 习题： 1. If my father ____ (say) such a thing to me, I would tell him to mind his own business. 2. If you _____(stay) in England just ...