1、词义不同：alone的意思是独自的，独立的，单独地。而Lonely的意思是寂寞的，孤寂的。alone用作形容词，通常只是表示客观上的一个人或没有外人，而不表示寂寞或孤独等感情色彩，并且在句中只用作表语。例如：He doesn’t feel lonely when he is alone.他一个人时不感到寂寞。

2、词性不同：lonely既可以作定语，也可以作表语，作表语是寂寞，孤立的意思，作定语指地方荒无人烟。alone可以作形容词，也可以作副词，但是只作表语。例如：She lives alone and often feels lonely.她孑然一身，常感到寂寞。

3、用法不同：alone作形容词时只可以作表语，不可以作定语，而lonely可以作表语，也可以作定语。例如：He has been very lonely since his wife left him.自他妻子离开他后，他一直感到很寂寞。

lonely：英[ˈləʊnli]；美[ˈloʊnli]

adj.孤独的；寂寞的；在孤单中度过的；偏僻的；人迹罕至的

比较级：lonelier

最高级：loneliest

派生词：loneliness

alone：英[əˈləʊn]；美[əˈloʊn]

adj./adv.单独地；单独；独自；孤独；独力；孤苦伶仃；无依无靠；寂寞；唯一，只有；仅仅，单，只

比较级：aloneer

最高级：aloneest

1、She showed her sympathy for the lonely man.

她非常同情这个孤独的男人。

2、The lonely child longs for the caress of his mother.

这个孤独的孩子渴望母亲的爱抚。

3、He placed a lonely hearts ad in a magazine.

他在一份杂志上刊登了征友广告。

4、He trudged home feeling lonely and let down.

他步履艰难地往家走，感到孤独而沮丧。

5、She felt lonely and hopeless.

她感到孤独绝望。

6、I don't get lonely now because I make the effort to see people.

我现在不觉得孤独了，因为我尝试着与人交往。

7、They often have a lonely and solitary life to lead.

他们常常过一种独居的孤独生活。

8、I would imagine she's quite lonely living on her own.

我猜想她一个人过肯定很孤独。

9、I could see she was lonely.

我能看出她很寂寞。

10、I feel lost and lonely in a strange town alone.

在陌生的城镇里只身一人，我感到不知所措、孤单寂寞。

11、It felt like the loneliest place in the world.

感觉这就像是天底下最荒凉的地方。

12、He seemed to me very young and very lonely.

我觉得他似乎非常年轻，非常孤独。

13、I desperately needed something to occupy me during those long,lonely nights.

在那一个个漫长、孤单的夜晚，我极需找点事做。

14、Today she cuts a lonely figure.

今天她看起来十分孤独。

15、I'm not perfect but I'm also not emotionally crippled or lonely.

我并不完美，但我也没有什么心结，也不孤独。

16、Although the journey was a long and lonely one,Tumalo pushed on.

虽然旅途漫长孤独，图马罗还是继续前行。

17、He wished that he could be like other children instead of pursuing his lonely predestined path.

他希望他能够像其他孩子一样，而不是走一条早已注定的孤独之路。

18、Despite his conquests,he remains lonely and isolated.

尽管他俘获过很多女人的芳心，却依然孤单寂寞。

19、He kept her from being lonely

他不让她感到孤独。

20、Miserable,and unexpectedly lonely,she went in search of Jean-Paul

内心痛苦、突感寂寞的她去寻找琼－保罗。

1、It was the first time since his return that they had talked alone and of their love.

这是他回家以后他们两人头一回单独地倾吐爱慕之情。

2、The type or the number of processors and their power alone does not decide the performance of a system.

处理器的类型或者数目，以及它们的能力都不能单独地决定系统的性能。

3、I quite understand that you need some time alone.

我很理解你需要独自静一会。

4、I don't like going out alone at night.

我不喜欢夜晚单独外出。

5、Would you mind leaving us alone for a few minutes?

你不介意让我们单独待一会吧？

6、It was her first experience of living alone.

那是她第一次单独生活。

7、I've told you before─leave my things alone!

我告诉过你——别碰我的东西！

8、I tried to picture what it would be like to live alone.

我努力设想一个人单独生活是什么情景。

9、I like being alone in the house.

我喜欢独自一人待在家里。

10、It took her a while to adjust to living alone.

她过了一段时间才适应独自生活。

11、I started to feel afraid of going out alone at night.

我开始害怕夜间单独外出了。

12、The apartments are ideal for single people living alone.

这些公寓供单身者独自居住最为理想。

13、There isn't enough room for us,let alone any guests.

连我们都没有足够的空间，更不用说客人了。

14、I'm not too happy about her living alone.

我不太放心让她一个人住。

15、I left them alone,as I felt I was in the way.

我留下他们单独在一起，因为我觉得我碍他们的事。

16、The business has 34 retail outlets in this state alone.

那家商号仅在本州就有34个零售店。

17、Andrew decided to go it alone and start his own business.

安德鲁决定独力开办自己的企业。

18、It scared me to think I was alone in the building.

想到楼里只有我一个人，怪害怕的。

19、I quite understand you needing some time alone.

我很理解你需要独自静一会。

20、Her income was barely enough to maintain one child,let alone three.

她的收入养活一个孩子几乎都不够，更不用说三个了。