learn
1.learn有时是“学会”或“学得”，有时是“学习”，比较下面每组里的两句：
- The boy will soon learn to swim.(学会、学得)
I advise you to learn to swim.(学习) - Study hard, and you will learn the language quickly.(学会、学得)
I am learning English from an excellent teacher.(学习) - Study hard, and you will learn quickly.(学会、学得)
You must learn before you can acquire any skill or knowledge(学习)
2.learn后面接不定式比接动名词普通，那动名词通常指一种技术，比较下面各句：
- I advise you to learn to swim（或swimming）.
- I advise you to learn to speak（不用speaking）more slowly.
- I advise you to learn to be（不用being）polite.
3.I advise you to learn to be polite跟I advise you to learn how to be polite略有不同。第二句着重在“怎样…”
4.说“从（某人）学习…”在表示某人的词前面通常用from，有时用of，偶尔用with。例如：I am learning English from（或of，或with）an excellent teacher.
5.说“得悉”现在除了在whereabouts和cause（原因）两个词的前面以外，似乎总是用learn of而不用learn，如I have just learnt of his arrival （或success，accident，illness，death，marriage等）。
