storm的用法总结

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storm的用法总结

篇1:storm的用法总结

storm的意思

n. 暴风雨,暴风雪,[军]猛攻,冲击,骚乱,动荡

vi. 起风暴,下暴雨,猛冲,暴怒

vt. 袭击,猛攻,暴怒,怒骂,大力迅速攻占

变形:过去式: stormed; 现在分词:storming; 过去分词:stormed;

篇2:storm的用法总结

1、She was born in the middle of a rain storm.

她出生在一场暴风雨中。

2、The worst of the storm is yet to come.

最猛烈的暴风雨就要来了。

3、Kenya's long distance runners have taken the athletics world by storm.

肯尼亚的长跑运动员在田径界获得了巨大成功。

英语口语实战:go down a storm深受欢迎

Kaz:Hello, I'm Kaz.

卡兹:大家好,我是卡兹。

Yang Li:And I'm Yang Li. Hey Kaz, there is a stormraging outside- let's shut that door.

杨丽:我是杨丽。嘿卡兹,外面有暴风雨在咆哮——我们关上门吧。

Yang Li:Ah that's better. Now I can ask you about your party last weekend. How did it go?

杨丽:啊这样好多了。现在我可以问关于你上周的派对的事了。进行的怎么样?

Kaz:It went down a storm Li.

卡兹:它深受欢迎丽。

Yang Li:Your party 'went down a storm.' You mean you cancelled it because of the weather? Because of high winds and rain? Or snow?

杨丽:你的派对“下降一个暴风雨”。你的意思是你因为天气取消了它?因为强烈的风和雨?或者雪?

Kaz:No, no, no Li. If something 'goes down a storm' it means it's massively successful andenjoyable - so my party went really well - it went down a storm.

卡兹:不不不丽。如果某事“深受欢迎”意思是它非常成功而且令人愉快——所以我的派对进行的很好——它深受欢迎。

Yang Li:People loved it?

杨丽:人们喜欢它?

Kaz:Exactly. People loved my party so I can say 'It went down a storm.'

卡兹:正是。人们喜欢我的派对所以我可以说“它深受欢迎”。

Yang Li:Your party went down a storm - it was incredible.

杨丽:你的派对深受欢迎——这令人难以置信。

Kaz:That's right.

卡兹:是的。

Yang Li:Well, Kaz, I gave a presentationyesterday.

杨丽:卡兹,我昨天做了演讲。

Kaz:Oh OK. How did it go?

卡兹:哦好的。怎么样?

Yang Li:It went really well, everyone loved it, it went down a storm.

杨丽:它进行得很好,每个人都喜欢它,它深受人们喜爱。

Kaz:That's great Li.

卡兹:这很好丽。

Yang Li:Yes, I'm delighted and I like today's expression. Let's listen to some more examples:

杨丽:是的,我很开心而且我喜欢今天的短语。让我们听更多的例子吧:

You should have seen the new bandlast night. They went down a storm with the audience.

你本应该看昨晚的新乐队的。他们深受观众喜爱。

My idea for more holidays went down a storm with my colleagues.

我想要更多的假期的想法深受我同事的欢迎。

I like the looks of this new toy. I'm sure it'll go down a storm with our customers.

我喜欢这个新玩具的外表。我确定它深受我们的顾客的欢迎。

Yang Li:Kaz, you know, to me the word 'storm' has negativeassociations because stormsare usually destructive.

杨丽:卡兹,你知道,对我来说“暴风雨”这个词对我来说有消极的联系因为暴风雨通常情况下是毁灭性的。

Kaz:I agree Li but in this case it's used in a positive sense.

卡兹:我同意丽但是在这种情况下它用来表示积极的感情。

Yang Li:But it is informal, right?

杨丽:但是这是非正式的,对吗?

Kaz:Yes it is.

卡兹:是的。

Yang Li:So our listeners should use it with care.

杨丽:所以我们的听众要小心使用。

Kaz:That's right Li. So what do you think our listeners will think of today's expression?

卡兹:说得对丽。那么你觉得我们的听众会怎么想今天的短语?

Yang Li:I'm sure it'll go down a storm!

杨丽:我确信它会深受欢迎!

Both:Bye!

一起:再见!

篇3:storm的用法总结

storm可以用作名词

storm的基本意思是“风暴,暴风雨”,指由于大气翻动,特别是伴有雨、雪、雹等现象的大气的旋转运动而形成的风暴或暴风雨,是可数名词,有复数形式。

storm引申可作“强烈如暴(风)雨般的东西,(生活中的)**”,如情感、声音等的猛烈爆发,常与of连用。

storm的基本意思是“袭击”,指用武力攻取,包含一次攻击中所有的冲锋和激战,常常带有孤注一掷的感情色彩,竭尽全力避免失败和毁灭。

storm用作名词的用法例句

In the storm I took shelter under the tree.暴风雨时,我正在树下躲避。

A storm arose during the night.夜间起风暴了。

The clouds threatened a big storm.乌云预示着暴风雨即将来临。

storm可以用作动词

storm的基本意思是“袭击”,指用武力攻取,包含一次攻击中所有的冲锋和激战,常常带有孤注一掷的感情色彩,竭尽全力避免失败和毁灭。

storm既可用作及物动词,也可用作不及物动词。用作及物动词时,可接名词或代词作宾语; 用作不及物动词时,表示“起风暴,刮大风下大雨”,这时常以it作主语。

storm还可表示“狂怒,咆哮”,其后可接about,表示“气愤地谈(某事)”; 接at表示“对…大发雷霆”; 接into表示“非常气愤地进入”; 接out表示“非常气愤地出去”。

storm用作动词的用法例句

Help was lacking at sea during the storm.起风暴时海上无处可求援。

At that time he didn't have the guns to storm the headquarters.那个时候他没有枪支去武力夺取司令部。

He stormed about the house, breaking things.他在房子里暴跳如雷,乱摔东西。

篇4:storm的形容词是什么

例句:

A storm arose during the night.

夜间暴风雨大作。

The sky cleared after the storm.

暴风雨过后,天转晴了。

The storm clouds were gathering.

暴风雨乌云正在聚集。

篇5:Unit 2 The Storm

lesson three(一)大声读单词:drop  n. (液体的)珠,滴tornado  n. 龙卷风damage  v. 破坏,损坏 traditional  adj.  传统的without   perp. 无,没有 unkind   adj.  不亲切的,不和蔼的stay  v. 停留 hold  v. 拿住,抱住   (二)重点词组:drops of rain  雨滴 take a trip  旅行clean your bedroom  打扫你的卧室 (三)语法提示:1. should 作为情态动词,通常用来表示现在或将来的责任或义务,译作”应该”、”应当”。you should finish your homework in time. 你应该按时做完你的作业。you should tell your mother about it at once. 你应该立即把此事告诉你妈妈。2. should 作为情态动词,可以表示谦逊、客气、委婉之意,译为”可……”、”倒……”。i should say that it would be better to try it again. 我倒是认为最好再试一试。should you like some tea ? 你可喜欢喝茶? 3. should 作为情态动词,可以用来表示意外、惊喜或者在说话人看来是不可思议的。尤其在以 why, who, how 等开头的修辞疑问句或某些感叹句中常常译为“竟会”、“居然”。how should i know it ? 我怎么会知道这件事?why should you be so late today ? 你今天怎么来得这么晚?4. should  的否定形式为  should not = shouldn’t

篇6:or和and用法总结

and和or的用法:

1、and和or的用法并列结构中,or通常用于否定句,and用于肯定句。但有时and 也可用于否定句。

2、在否定中并列结构用or 连接,但含有两个否定词的句子实际被看作是肯定结构,因此要用and。

3、or用于连接并列的单词、词组、短语或句子,表示“或者”的意思。or用在选择疑问句中,灵活译为“还是”。or用于否定句中,代替and ,表示“和”的意思。

4、or用于连接两个并列的句子,表示“否则,要不然”的意思。

and:

1. Remember, keep a positive attitude and good things will happen.

记住:保持乐观的.心态,好事自然会发生。

2. The world breaks everyone, and afterward, many are stronger at the broken places.

生活总是让我们遍体鳞伤,但到后来,那些受伤的地方会变得更坚强。

3. For what do we live, but to make sport for our neighbours, and laugh at them in our turn?

我们活着是为了什么?不就是给邻居当笑柄,再反过来笑他们。

4. When life gets hard and you want to give up, remember that life is full of ups and downs, and without the downs, the ups would mean nothing.

当生活很艰难,你想要放弃的时候,请记住,生活充满了起起落落,如果没有低谷,那站在高处也失去了意义。

5. Good luck is when an opportunity comes along and you're prepared for it.

好运就是当机会来临时,你早已做好了准备。

6. I will return, find you, love you, marry you and live without shame.

我会回去,找到你,爱你,娶你,活的光明正大。《赎罪》

7. It's not about making the amazing saves. It's the little things and small things that made great gatekeepers great.

伟大的门将不是靠神奇的扑救成就,而是靠注重小事和细节成功。

or:

1. No matter where you go in life or how old you get, there's always something new to learn about. After all, life is full of surprises.

不管你生活在哪里,你有多少岁,总有新东西要学习,毕竟,生活总是充满惊喜。

2. Remember, happiness doesn't depend upon who you are or what you have; it depends solely upon what you think.--Dale Carnegie

请记住,幸福不在于你是谁或者你拥有什么,而仅仅取决于你的心态!

3. If your skin becomes red, sore or very scaly, consult your doctor.

如果皮肤发红、瘙痒或脱皮,要向医生咨询。

4. There is nothing sinister or conspiratorial about the export licensing system.

这种出口许可制度没有任何阴险或者见不得人的东西。

5. Do you sweat a lot or flush a lot?

你常出汗或是脸上常发烫吗?

6. Serve the cake warm or at room temperature, cut in squares.

等蛋糕温热或凉至室温时切成四方块端上桌。

7. I started with the Viennese speciality frittatensuppe, or pancake soup.

我吃的第一道菜是维也纳特色菜鸡蛋饼汤,也叫炒饼汤。

篇7:on用法总结

(2)on表示地点、位置,有“在.旁”、“接近”、“靠近”之意.如:

a house on the main road 临大街的房子,sit on my right 坐在我的`右边

(3)on表示状态,译为“处于.情况中,从事于.”等.如:

on duty 值日,on holiday 度假

(4)on表示“在.上面”,用在表示物体的名词前.如:

on the box 在盒子上

on和over都是介词,on表示“在.上面”,指一物体与另一物体表面相接触;over表示“在.上方”,指一物体与另一物体不接触.试比较:

There is a light on the desk.桌子上有盏台灯.(light与desk接触)

There is a light over the desk.桌子上方有一盏灯.(light与desk不接触)

表示“在.上”,介词on与in必须注意习惯用法,否则会出错.不妨比较一番:

on the tree/in the tree都译为“.在树上”.前者表示树上本身所长着的叶子、花、果实等;后者表示某物或某人在树上.

on the wall/in the wall都译为“在墙上”.由于介词不同,在使用上有区别.图画、黑板、风筝等“在墙上”,是因为它们在墙的表面上,故用on the wall;门窗、钉子、洞、孔等“在墙上”,是因为它们在墙的里面,故用in the wall.

有疑问在线交谈 祝你新年快乐 天天开心 心想事成 ...

篇8:as用法总结

五)含as的固定词组的用法

1.as soon as作“一…就”解,引导时间状语从句。eg:

As soon as I get to Beijing,I'll write to you.我一到北京,就给你写信。

2.as/so long as作“只要”解,eg;

As/So long as you study hard,you'll make progress.只要你努力,你就会取得进步。

3.as if/though常用来引导方式状语从句,作“好像,仿佛”解。如果从句中讲的是非真实情况,则用虚拟语气。eg:

She loves the child as if/though he were her own.她爱这个孩子如同爱自己的孩子。

As if/though也可用来引导表语从句,常用在“It appears/looks/seems...+as if/though”句型结构中。eg;

It appears as if/though it is going to clear up.看起来天要晴了。

It seems as if/though he knew nothing about it.他好像对此事一无所知。

4.as to作“关于,至于”解。eg;

There is no doubt as to his honesty.他的诚实是无可置疑的。

5.as much/many as作“多达...”,“达到...之多”解。eg:

He can earn as much as 5000 dollars a month.他每月能挣5000美元。

6.so/as far as I know作“就我所知”解,在句中作插入语。eg:

As/So far as I know,he will come here next Monday.据我所知,他将于下星期一到这里来。

7.as a result,as a result of表示“由于...的结果”。eg:

She died as a direct result of the accident.她的死是那次事故的直接结果。

8,as well为“也,还”之意。eg:

Come early,and bring your brother as well.早点来,把你的弟弟也带来。

9.so as to,so...as to若跟动词原形,表示目的或结果。eg:

He studied hard so as to pass the exam.他努力学习以便通过考试。(表示目的)

as……as

AS +adj(原级)+AS

AS +adv(原级)+AS

as soon as 一……就

as soon as possible 尽可能快地

as early as possible 尽可能早的

as carefully as you can 尽可能认真地

as careful as you can 尽可能认真的

so...as 一般用于否定句,as...as 一般用于肯定句,(肯定否定都能用)

so...as不可用于肯定句.as...as与so...as均可表示“与……一样”,as...as...的用法:两个as中间可以加形容词或者副词,由它要修饰的内容决定.

它们的用法有异同之处:

肯定句用as...as,不用so...as;否定句两者均可使用.例如:

I didn't go as /so far as you.我走得不像你那么远.

They walked as far as the station.他们步行到了车站.

误:They walked so far as the station.

篇9:THAT用法总结

“that”在英文中是一个使用频率很高的单词。它有四种词性,并且句法及语法功能纷繁复杂。同学们如果不能熟练掌握其用法,很可能会形成英语学习的一种障碍,从而影响其学习兴趣和效率。现将that的用法总结归纳如下:

第一、that 用作形容词(后接复数名词时用those)。

它用来指已被提到的人或物;也可表对比,指两个中较远的那个。

what about that book you borrowed from me last month?

请注意,that 有时候在句子中具有喜欢或轻蔑等感情色彩。

that little son of his 他那个小宝贝儿子

that george!乔治那家伙!(含有轻蔑语气)

第二、that 用作代词。

1. that 用作指示代词(复数形式是those),其指代意义同形容词用法,同时它还可以用作定语从句中的先行词;还可为了避免重复,代替前述名词。

that is what he told me.

what is that (which) you have got in your hand?

the price of rice is higher than that of flour.

2. that 用作关系代词,引导限制性定语从句。先行词可人可物,用法相当于who或which。(但是在下列情况下多用that:先行词既有人又有物时;先行词有形容词最高级、序数词、不定代词、very,only等修饰时;先行词是不定代词时)

he talked about the teachers and schools that he had visited.

i think it one of the most wonderful films that the film company has ever produced.

she has little information that is useful for our research.

is there anything that i can do for you?

请注意,that 在定语从句中作宾语时通常可省略。

the books (that) i sent you will help you in your studies.

第三、that 用作连词,引导名词性从句,状语从句和强调句。

1. that名词性从句。

①引导宾语从句。及物动词后的引导词that可省略。

i didn't expect (that) he could win the championship.

the teacher pointed out that tom was not working hard enough.

② 引导主语从句。通常采用it作形式主语的句型。

that the earth goes around the sun is known to everyone.

(it is known to everyone that the earth goes around the sun.)

③引导表语从句。

the trouble is that we are short of money.

④引导同位语从句。

引导同位语从句的that和引导定语从句的that是不同的。前者只起语法作用,在从句中不作任何成分;而后者在定语从句中作主语、宾语或表语。举例说明:

the news that he resigned from office surprised us.

the idea that he holds is very common nowadays on campus.

2. that引导状语从句

①引导目的状语从句。

bring it nearer that i may see it better.

②引导结果状语从句。

what have i done that he should be so angry with me?

③引导原因状语从句。

i am afraid that i will fail in the driving test.

④引导让步状语从句。意为“虽然、尽管”。

difficult that/as the task was, they managed to accomplish it on time.

⑤引导条件状语从句。意为“假使、假设”。

supposing that you were in my position, what would you do?

on condition that you were lost in the desert, you should ask for help as soon as possible.

3. 引导强调句。

it is mrs. white that makes the decision in her family, not her meek little husband.

it is an ill wind that blows nobody good.

第四、that用作副词。

1. that用作普通副词。

i was that/so angry i could have hit him.

2. that用作关系副词。引导定语从句,可以代替when,where, why或 in which,常可省略。

i will never forget the evening (that) / when we went to the theatre.

the house (that)/where i used to live has been knocked down.

第五,与that 有关的常见重要短语。

1. in that,意为“既然、因为”。

criticism and self-criticism is necessary in that it helps us correct our mistakes.

2. now that,意为“既然、由于”。

now that they have taken matters into their hands, the pace of events has quickened.

3. see (to it) that,意为“注意、务必做到、保证”。

we will see to it that she gets home early.

see to it that you are not late again.

4. seeing that,意为“鉴于、由于”。

seeing that it is 8 o'clock, we'll wait no longer.

seeing that he was busy with his work, i didn't disturb him.

篇10:as用法总结

一)as作副词,表示程度,意为“同样地”。在“as...as...”,“not as...as...”结构中的第一个as是副词,作“和/与...(不)一样”解。eg:

Jack is as tall as his father.杰克和他的父亲一样高。

He doesn't speak English as/so fluently as you.他的英语说得不如你流利。

二)as作介词。

1.作“如,像”解。eg:

They got united as one man.他们团结得像一个人一样。

2.作“充当,作为”解。eg:

As a writer,he was famous.作为作家,他是很有名的。

三)as作连词,常用来连接主句和状语从句。

1.引导时间状语从句,作“当...的时候”解,有“随着...”之意,与while意义相近,强调两个动作同时发生;或某事一发生,另一事立即发生。eg:

He shouted aloud as her ran along.他一边往前跑,一边高声地呼喊。

I was startled as he opened the door.他一开门,我吓了一跳。

as作连词,相当于when。eg;

As a little boy (When he was a little boy)he began to learn to play piano.他小时候就开始学弹钢琴。

2.引导原因状语从句,作“因为,由于”解,与because的用法相近。eg;

I must stop writing now,as I have rather a lot of work to do.我必须停笔了,因为我还有许多工作要做。

3.引导方式状语从句或比较状语从句,作“正如,(如)像”解。例eg:

As in your country,we grow wheat in the north and rice in the south.正如(像)你们国家一样,我们在北方种小麦,在南方种大米。(方式状语从句)

When at Rome,do as Romans do.入乡随俗。(方式状语从句)

4.引导让步状语从句,作“虽然,尽管”解。这时从句常用倒装语序,即把从句中的表语、状语或动词原形放在as之前。eg;

Strange as it may seem,it is true.尽管这事看上去很奇怪,但却是真的。

Try as he might,Tom could not get out of the difficulties.不管怎样努力,汤姆还是摆脱不了困境。

四)as作关系代词。

1.引导限制性定语从句,用在“such...as”,“the same...as”,“as...as”等结构中,常译作“像...一样的人(或物)”,“凡是...的人(或物)”。例eg:

He wished to be such a man as Lei Feng was.他曾希望做一个像雷锋那样的人。

My hometown is no longer the same as it was.我的家乡再也不像过去一样了。

2.引导非限制性定语从句,用来指代它前面的整个句子(即先行句),意思是“这一点”。这个分句可以位于句首、句中或句末。eg:

As is well known,oceans cover more than 70% of the earth.我们知道,海洋占地球面积的百分之七十以上。

篇11:that用法总结

that还常用以代替who, whom, which,但that...which中的that用做关系代词的先行词。

that可以用作连词

that用作连词时可引导主语从句、宾语从句、表语从句、同位语从句和状语从句。

that还常引导间接引语或形容词后面的.从句。

that在以it作形式主语的句子中或引导宾语从句、状语从句时常可省略。

篇12:as if 用法总结

从句表示与将来事实相反,谓语动词用“would/could/might+动词原形”。

例句:

You look as if you didn’t care.

你看上去好像并不在乎。

He talks about Rome as if he had been there before.

他说起罗马来好像他以前去过罗马似的。

He opened his mouth as if he would say something.

他张开嘴好像要说什么。

篇13:with用法总结

1、with 结构修饰名词,with 作后置定语,不紧跟前面名词的情况。

例,Bihar is India's poorest state, with an annual per capita income of $111, lower than that of the mostimpoverished countries of the world.

with 结构 修饰 Bihar

2、with 结构修饰名词,紧跟名词的情况。

例,Under the restructuring, the huge organization that operates the company's basic businesses will be divided into

five groups, each with its own executive.with 结构修饰 each (group)

篇14: 《the most human human》和《brain storm》

《the most human human》和《brain storm》读后感

寒假里看了两本书,the most human human,和brain storm。

前一本书的立意很清楚,人何以为人,有别于机器和动物的根本。亚里士多德认为理性是人的根本,打个比方,看到一个人在算一个几何证明题,他会觉得这才是人改干的事情,追求爱情?不是动物的本能吗。以此类思想建立起的宗教,推崇,思考和论证,比如,空既是色,这个命题。

改变开始于上个世纪,电脑的出现和对大脑更进一步的生理分析。照亚里士多德的想法,他应该跪倒在电脑前了,电脑是超人。书里讲到,电脑的出现,使得人不得继续去寻找,人的根本。

人的行为是否必然存在动机?移动自己的手臂拿起茶杯喝水,整个过程中,哪些是有意识地行为哪些是无意识的.,我口渴我要喝水,从意识到行为中间还是发生了很多事情,第二部书的一些内容没看明白。有一个试验发现,一只猴子在看另一只猴子拿香蕉时,脑袋的某些神经元进行了计算,这只猴子自己去拿的时候,出现了相同的神经活动,进一步如果这只猴子知道对面的猴子在拿香蕉,即便没看到,相同的活动也出现。这个试验,把行为跟神经活动联系了起来,我们看到一个人跳舞时,自己的神经系统已经做出了跳舞的指令?!

开心的是如何遇到这两本书的。在公司的电子图书馆里,几乎没有文学类书,真的就只有这两本,归属于哲学。电子图书馆不能下载到中国的amzon,注册新的amzon账号,注册kindle,看到这两部书被推送到自己的kindle,让人觉得好巧,一本属于你的书,学了那么多年英文。。看懂了半本,也要是这个时间点,自己得有个独立思想,然后再去看别人的说的是什么。

篇15:英语读后感--Storm Castle

英语读后感--Storm Castle

《Storm Castle》   Today, I read a book. It′s name is called “Storm Castle”. This story is about the computer game “Storm Castle” and the children ′s adventure.   One day, Nick′s Mum and Dad had to go away so Nick came to his friends home. Nick had a computer and the children played on the computer. One of Nick′s new game was called “Storm Castle”. When they played the game, suddenly the magic key began to glow. The children were going to Storm Castle. Storm Castle is full of dangers. The magic did not take them inside the castle. It took them to a desert. They meet the Giant robots, jumped across the broken bridge, go through the maze……At last, they went to the castle′s latest room. They found a very big robot. The robot looked like Nick′s toy. They opened the top of robot and Nick was inside. The adventure finished.   I think this book is very interesting. The boys and girls are very brave and clever. They experienced so many dangers and they try their best .They did not afraid of difficulties. I like this book very much.   No.3 Primary school of ShenZhen YuCai   grade 4 and class 1   Peng xilin   -11-14 Castle TITLE=英语读后感--Storm  Castle TITLE=英语读后感--Storm 

篇16:Climate controls on dust storm occur

Climate controls on dust storm occurrence in Maowusu Desert, Inner Mongolia, North China

Dust storms occurring in arid and semi-arid regions play a main role in the evolution of landscapes. Climate is generally regarded to be important factors influencing the occurrence of dust storm, however, the way of climate controlling dust storms had been poorly understood. In this paper, we present the Ew Index model to describe the relationship between climate variables and dust storm frequency using the available meteorological data from three meteorological stations in Maowusu Desert. This index model explains 96.8%, 69.8% and 65.3% of the variance of dust storm frequency in three regions from the north to the south,respectively and this difference is probably caused by the difference of the human disturbance. The Ew Index model is an effective predictor of dust storm frequency and provides us a quite good understanding on the occurrence of dust storms in Maowusu Desert.

作 者:HUANG Fu-xiang GAO Qiong  作者单位:Laboratory of Quantitative Vegetation Ecology, Institute of Botany, Chinese Academy of Sciences, 刊 名:环境科学学报(英文版)  ISTIC SCI英文刊名:JOURNAL ENVIRONMENTAL SCIENCES 年,卷(期): 13(1) 分类号:X14 关键词: 

篇17:storm 简介及单机版安装指南

为了在storm上面做实时计算, 你要去建立一些topologies。一个topology就是一个计算节点所组成的图。Topology里面的每个处理节点都包含处理逻辑, 而节点之间的连接则表示数据流动的方向。

运行一个Topology是很简单的。首先,把你所有的代码以及所依赖的jar打进一个jar包。然后运行类似下面的这个命令。

strom jar all-your-code.jar backtype.storm.MyTopology arg1 arg2

这个命令会运行主类: backtype.strom.MyTopology, 参数是arg1, arg2。这个类的main函数定义这个topology并且把它提交给Nimbus。storm jar负责连接到nimbus并且上传jar文件。

因为topology的定义其实就是一个Thrift结构并且nimbus就是一个Thrift服务, 有可以用任何语言创建并且提交topology。上面的方面是用JVM

-based语言提交的最简单的方法, 看一下文章: 在生产集群上运行topology去看看怎么启动以及停止topologies。

篇18:storm 简介及单机版安装指南

Stream是storm里面的关键抽象。一个stream是一个没有边界的tuple序列。storm提供一些原语来分布式地、可靠地把一个stream传输进一个新的stream。比如: 你可以把一个tweets流传输到热门话题的流。

storm提供的最基本的处理stream的原语是spout和bolt。你可以实现Spout和Bolt对应的接口以处理你的应用的逻辑。

spout的流的源头。比如一个spout可能从Kestrel队列里面读取消息并且把这些消息发射成一个流。又比如一个spout可以调用twitter的一个api并且把返回的tweets发射成一个流。

通常Spout会从外部数据源(队列、数据库等)读取数据,然后封装成Tuple形式,之后发送到Stream中。Spout是一个主动的角色,在接口内部有个nextTuple函数,Storm框架会不停的调用该函数。

bolt可以接收任意多个输入stream, 作一些处理, 有些bolt可能还会发射一些新的stream。一些复杂的流转换, 比如从一些tweet里面计算出热门话题, 需要多个步骤, 从而也就需要多个bolt。 Bolt可以做任何事情: 运行函数, 过滤tuple, 做一些聚合, 做一些合并以及访问数据库等等。

Bolt处理输入的Stream,并产生新的输出Stream。Bolt可以执行过滤、函数操作、Join、操作数据库等任何操作。Bolt是一个被动的角色,其接口中有一个execute(Tuple input)方法,在接收到消息之后会调用此函数,用户可以在此方法中执行自己的处理逻辑。

spout和bolt所组成一个网络会被打包成topology, topology是storm里面最高一级的抽象(类似 Job), 你可以把topology提交给storm的集群来运行。topology的结构在Topology那一段已经说过了,这里就不再赘述了。

topology结构

topology里面的每一个节点都是并行运行的。 在你的topology里面, 你可以指定每个节点的并行度, storm则会在集群里面分配那么多线程来同时计算。

一个topology会一直运行直到你显式停止它。storm自动重新分配一些运行失败的任务, 并且storm保证你不会有数据丢失, 即使在一些机器意外停机并且消息被丢掉的情况下。

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