alone 和only的区别是？用法是？

alone 副词 adv. 单独；独自

by yourself;with no other people

· She went home alone.

她独自回家去了。

· It's foolish of him to go alone.

他单独去未免太傻了。

· When his wife died, he lived alone.

他的妻子死后，他一个人生活。

· An elderly patient was sitting in her wheelchair alone.

一位上了年纪的病人孤单单地坐在轮椅上。

形容词 adj. 单独的

apart from others

· He is alone.

他独自一人。

· The ticket collector at the gate noticed that he was alone.

门口的检票员注意到他是独自一人。

· We are not alone; we have friends all over the world.

我们并不孤立，我们的朋友遍天下。

lonely词缀： -ly具有某性质的in the specified manner

形容词比较级： lonelier 最高级： loneliest

a. 1.孤独的，寂寞的 2.荒凉的，人迹稀少的

形容词 adj. 孤独的；寂寞的

sad because you are alone,with no friends

· She often felt lonely.

她常感到寂寞。

· I was alone,but I did not feel lonely.

我虽然孤单，但我不感到寂寞。

· Sarah felt lonely when her best friend left the town.

自从她最好的朋友离城以后萨拉感到很寂寞。

· They live a lonely life in a lonely house in the hills.

他们在山中一栋孤零零的房子里过着寂寞的生活。

lonely 形容词 adj. 偏远的；人迹罕至的

far away from other places

· Two noblemen took him to a lonely house.

两个贵族把他带到一座僻静的房子里。

· They went to a lonely place in the mountains.

他们到了山中寂寞的地方。