Any time you come to London do look me up. 你无论什么时候到伦敦来，一定要来看我。

分析：

1. any time you come to London：时间状语从句。其中的any time用作从属连词，引导时间状语从句）。又如：

Any time you need him, let me know. 什么时候需要他帮忙，跟我说一声就行。

2. do look me up：主句。其中的 do 表强调。又如：

They do want you to come. 他们一定要你来。

She does feel that way. 她确实有那种感觉。

Now that you mention it, I do remember the incident. 经你一提，我想起那件事了。

Any time you come to London(时间状语从句）//（祈使句） do look me up.  

你无论什么时候到伦敦来，一定要来看我。

以上句子结构属于“时间状语从句”+“加强版祈使句”do+动词原形表示语气加强意思“一定be sure to ，do look me up=Be sure to look me up”。

the+时间名词/季节名词构成特殊连词引导的时间状语从句归纳如下：

【1】瞬间名词moment、instant、minute、second与定冠词the 连用可引导时间状语从句。相当于“hardly / scarcely …… when ……”、“no sooner …… than ……” 的用法，表示“一……就……”。

The machine will start the moment you press this button.

你一按按钮机器马上启动。

Don't back up the moment you run up against a little difficulty.

不要遇到一点困难就打退堂鼓。

She burst into tears the moment she got the sad news.

一听到这伤心的消息，她就哭了起来。

The instant I saw him, I knew that he was angry with me.

我一见到他，就知道他在生我的气。

The instant she caught his eye, she looked away again.

刚碰到他的目光，她便把眼睛转开。

The instant Halely touched the saddle, the mettlesome horse bounded from  the earth with a sudden spring.

海利一跨上马鞍，那匹烈性子马就突然从地面腾空而起。

The minute I saw you coming, I came to out to meet you.

一见到你来了，我就出来迎接你。

I repented of it the minute it was done.

那件事刚做完我就后悔了。

The minute the news is proclaimed, the people gathering at the square

cheered up at once.

消息一宣布，聚集在广场的人们顿时欢呼起来。

The second the bell rang, the students dashed out of the classroom.

铃声一响，学生都跑出了教室。

She put down the receiver the second she recognized my voice.

她一听出是我的声音，马上就放下电话听筒。

I rushed over here to tell you the second that I heard the news.

我一得到消息就赶着跑来告诉你。

【2】the+ 时间名词morning、afternoon、evening、night、day、week、month、season、year 连用引导时间状语从句。

Several traffic accidents took place on the highway the morning it snowed heavily.

下大雪的那个早上，高速公路发生了好几起交通事故。

The night I went to see her, she had left for Beijing to attend an important meeting.

我去看她的那个晚上，她到北京去开一个重要的会议了。

The day he returned home, his father was already dead.

他回家的那一天，他的父亲已经死了。

The week I was in hospital, she attended me at the bedside day and night.

我住院的一周里，她一直在我在床头照看我。

Mr Smith didn't go to work the week his wife was ill.    

他妻子生病的一周里，史密斯先生没有去上班。

The month I went to Europe, Mr. Simpson helped me to manange my business.

我去欧洲的那个月都是辛普森先生帮我来管理我的生意。

He left home the year World War II broke out and ten years elasped when he  

returned.

第二次世界大战爆发的那一年，他离开了家，等回来的时候十年已经过去了。

The year he was killed in an accident, he was at the peak of his career.

遇车祸身亡的那年，他正处于职业生涯的顶峰。

【3】the+四季名词 spring、summer、autumn 、winter 与定冠词 连用引导时间状语从句。

His wife left him the spring he went abroad.

在他出国的那年春天，他的妻子离开了他。

Alice had a son the spring her husband went abroad.

丈夫出国的那年春天，爱丽丝生下了一个儿子。

He sold his house and went to the south the summer he lost his job.

在他失业的那年夏天，他卖掉房子去了南方。

She got married the autumn she graduated from college.

大学毕业的那年秋天她就结婚了。

The old Thomson died the winter his wife died.

老汤姆森在他妻子那年冬季也死了。

He was sent to prison the winter his third child was born.

在他第三个孩子出生的那年冬天，他被关进了监狱。

【4】时间名词 time 引导时间状语从句的三种情况。

(1)the + 序数词+ time   time 前面用first、second、third 等序数词修饰，必须用定冠词the。

You were only this high, the first time I saw you.

我第一次见到你的时候你才这么高。

A strange feeling came on Shelton the first time he saw them sitting there at lunch.

谢尔顿第一次看见他们坐在那儿吃中饭，一时间产生了一种莫名的感觉。

The second time I talked to him, he admitted that he had made a big mistake.

在我第二次我跟他交谈时，他承认自己犯了大错。

The third time I went there, I found all of them had left and the offices were all empty.

我第三次去那儿时，发现他们都离开了，所有的办公室都是空的。

(2)（the）+ next / last + time   time 前面用 next 和 last 修饰，定冠词 the 可以省略。

I’ll give him a black eye, the next time he offends you.

下次他再冒犯你，我一定会给他颜色瞧。

Next time you come, be sure to take your little daughter with you.

下次你来时，一定要带是你的小女儿一起来。

The last time I came to see your family, your father seemed to be in good

health.

上次我来看你家看你们的时候，你父亲身体看起来还蛮健康的。

Last time I spoke here, I expressed the hope that we would cooperate with  

your university.

上次在这里演讲时，我就表达了希望能与贵校合作的愿望。

(3)each/every/any + time 不定代词前面用 each、every、any 修饰。(备注：不用定冠词  the。）  

Every time I travelled by boat, I got seasick.

每次坐船，我都要晕船。

Every time he come over to see me, he either wants to tell me his trouble or borrow some money.

每次我见到他，他不是向我诉苦，就是要向我借钱。

Each time he came to town, he would drop in my home and have a chat with me.

他每次进城，总会到我家坐坐，跟我聊上几句。

Each time he was accomplish something in his work, he gave a big party for

the little circle of friends he had.

每次工作中干出些名堂，他总请自己的为数不多的朋友吃喝一顿。

You are welcome to come back any time you want to.

你什么时候想回来，我们都欢迎。

Please drop in any time you are passing this way.

无论何时你路过这儿，请顺便进来坐坐。