<![CDATA[..::蓝因博客::.. - 英语]]> http://www.cpsky.net/ zh-cn PBlog2 v2.4 ..::蓝因博客::.. http://www.cpsky.net/images/logos.gif http://www.cpsky.net/ ..::蓝因博客::.. http://www.cpsky.net/article.asp?id=309 <![CDATA[Warriors of the Net-IP for Peace]]> aapu@163.com(aapu) Sat,11 Apr 2009 00:47:37 +0800 http://www.cpsky.net/default.asp?id=309
This is the Dawn of The Net.

Want to know how it works? Click here to begin your journey into the Net.

Now exactly what happened when you clicked on that link? You started a flow of information. This information travels down to your own personal mail-room where Mr. IP packages it, labels it and sends it on its way. Each packet is limited in its size. The mail-room must decide how to divide the information and how to package it.

The IP packet now needs a label, containing important information such as senders address, receivers address and the type of packet it is. Because this particular packet is going out onto the Internet, it also gets an address for the Proxy Server which has a special function as we’ll see later.

The packet is now launched onto your Local Area Network or LAN. This network is used to connect all the local computers, routers, printers etc. for information exchange within the physical walls of the building. The LAN is a pretty uncontrolled place and unfortunately accidents can happen.

The highway of the LAN is packed with all types of information. There are IP packets, Novell packets, Apple Talk packets - Uh, they’re going against traffic as usual. The local router reads the address and if necessary lifts the packet onto another network.

Ah the router. A symbol of control in a seemingly disorganized world. There he is..systematic, uncaring, methodical, conservative and sometimes not quite up to speed. But he is exact… for the most part.

As the packets leave the router, they make their way into the corporate intranet and head for the router switch. A bit more efficient than the router, the router switch plays fast and loose with IP packets deftly routing them along their way. A digital pin-ball wizard if you will.

As packets arrive at their destination they are picked up by the network interface, ready to be sent to the next level. In this case, the proxy. The proxy is used by many companies as a sort of “middleman” in order to lessen the load on their Internet connection. And for security reasons as well. We can see that the packet are all of various sizes, depending on their content.

The proxy opens the packet and looks for the WEB address or URL. Depending upon whether the address is acceptable…the packet is sent on to the Internet. There are, however, some addresses which do not meet with the approval of the proxy (that is to say corporate or management guidelines). These are summarily dealt with. We’ll have none of that. For those who make it, it’s on the road again.

Next up - the Fire Wall. The corporate Fire Wall serves two purposes. It prevents some rather nasty things from the Internet from coming into the intranet. And it also can prevent sensitive corporate information from being sent out to the Internet.

Once through the fire wall, a router picks up the packet and places it on to a much narrower road or band-width, as we say. Obviously, the road is not broad enough to take them all.

Now you might wonder what happens to all those packets which don’t make it along the way. Well, when Mr. IP doesn’t receive an acknowledgment that a packet has been received in due time, he simply sends a replacement packet.

We are now ready to enter the world of the Internet. A spider web of inter-connected networks which spans our entire globe. Here, routers and switches establish links between networks.

Now, the Net is an entirely different environment than you’ll find within the protected walls of your LAN. Out here, it’s the Wild West. Plenty of space, plenty of opportunities, plenty of things to explore and places to go. Thanks to very little control and regulation new ideas find fertile soil to push the envelope of their possibilities. But because of this freedom, certain dangers also lurk. You’ll never know when you’ll meet the dreaded Ping Of Death. A special version of a normal request Ping which some idiot thought up to mess up unsuspecting hosts.

The paths our packets take maybe via satellite, telephone lines, wireless or even trans-oceanic cable. They don’t always take the fastest or shortest routes possible, but they probably will get there - eventually. Maybe that’s why it’s sometimes known as the World Wide Wait. But when everything is working smoothly, you can circumvent the globe 5 times over, at the drop of a hat - literally. And all for the cost of a local call or less.

Near the end of our destination, we’ll find another Fire Wall. Depending upon your perspective as a data packet, the fire wall can be a bastion of security or a dreaded adversary. It all depends on which side your on and what your intentions are.

The Fire Wall is designed to let in only those packets that meet its criteria. This wall is operating on ports 80 and 25. All attempts to enter through other ports are closed for business.

Port 25 is used for mail packets, while port 80 is the entrance for packets from the Internet to the Web server.

Inside the fire wall, packets are screened more thoroughly, some packets make easily through “customs” while others look just a bit dubious. The Fire Wall officer is not easily fooled, such as when this ping of death packet tried to disguise itself as a “normal” ping packet.

For those packets lucky enough to make this far, the journey is almost over. It’s just to line up on the interface to be taken up into the web server.

Nowadays, a web server can run on many things. From a mainframe, to a web-cam to the computer on your desk. or why not your refrigerator? With the proper set-up, you can find out if you the makings for Chicken Catchitory or if you have to go shopping.

Remember this is the Dawn of the Net - almost anything’s possible.

One by one, the packets are received, opened and unpacked. The information they contained, that is your request for information is sent onto the Web server application. The packet itself is recycled. Ready to be used again. And filled with your requested information. Addressed and sent out on its way back to you.

Back past the fire walls, routers, and on through the Internet. Back through your corporate fire wall and onto your interface.

Ready to supply your web browser with the information you requested.

That is - this film.

Pleased with their efforts and trusting in a better world, our trusty data packets ride off blissfully into the sunset of another day, knowing fully they have served their masters well.

Now isn’t that a happy ending?]]> http://www.cpsky.net/article.asp?id=211 <![CDATA[英语四六级作文提分亮点词汇]]> aapu@163.com(aapu) Fri,21 Dec 2007 22:56:23 +0800 http://www.cpsky.net/default.asp?id=211 　　地球: earth / the Planet earth / our Mother Planet / global village
　　电脑: the computer / the machine / the device
　　校园: the campus / the Ivory Tower / the relatively isolated place
　　社会: the society / the real world
　　中国: China / the Middle Kingdom / this ancient country
　　随着...的发展: As... evolves
　　...变的越来越重要.. is becoming increasingly vital
　　...变的越来越普遍.. is becoming increasingly prevalent
　　人们对...越来越重视 People have a growing respect for sth.
　　人们重视/看中/珍爱某物 place a high value on sth.
　　增强竞争力 sharpen one's edge
　　使某人具有优势力 give sb. the edge
　　...很重要 is vital / crucial / essential
　　起...重要作用 play a central role in
　　观点类:
　　对...有好处 ... pays off / it pays to .. / sth. is beneficial (rewarding)
　　对...有坏处... have a negative impact on / do harm (damage) to sth.
　　好 top / superior students / favorable impact / positive impression
　　坏 poor / inferior quality / faulty goods / negative impression
　　促进/提高/增强/改善 give a boost to  ]]> http://www.cpsky.net/article.asp?id=92 <![CDATA[大学英语四六级算分器]]> aapu@163.com(aapu) Wed,27 Dec 2006 12:44:51 +0800 http://www.cpsky.net/default.asp?id=92
Flash动画
在线播放
]]> http://www.cpsky.net/article.asp?id=90 <![CDATA[12月23日新英语四级考试考试时间流程安排]]> aapu@163.com(aapu) Fri,22 Dec 2006 20:08:04 +0800 http://www.cpsky.net/default.asp?id=90
　　具体考试流程如下：

　　8：50---9：00试音寻台时间

　　9：00---9：10播放考场指令，发放作文考卷

　　9：10取下耳机，开始作文考试

　　9：35发放含有快速阅读的试题册(但9：40才允许开始做)

　　9：40---9：55做快速阅读

　　9：55---10：00收答题卡一(即作文和快速阅读)

　　9：55---10：00重新戴上耳机，试音寻台，准备听力考试

　　10：00开始听力考试，电台开始放音

　　听力结束后完成剩余考项

　　11：20全部考试结束

　　非试点学校六级仍然是老题型，考试时间是23日下午15点至17点20分；试点学校考六级新题型，考试时间为12月24日上午9点至11点20分
]]> http://www.cpsky.net/article.asp?id=89 <![CDATA[12月新英语四级考试考场时间安排应对黄金策略]]> aapu@163.com(aapu) Wed,20 Dec 2006 22:45:09 +0800 http://www.cpsky.net/default.asp?id=89
　　附表：新四级考场时间安排

考试时间 9：00—11：30

8：50—9：00    收音机调试，发答题卡

9：00—9：30    作文(30min)

9：30                发试题册

9：30—9：45    快速阅读(15min)

9：45—10：00  收答题卡一，最后的调试试音，准备听力（预览选项）

10：00—10：35 听力(35min)  注：题目前没有指令

10：35—11：30 仔细阅读  选词填空  完型填空或改错（二选一）（15min） 收试题册

11：30               翻译（5min）

11：35               全体起立，收答题卡二


　　应对策略：

　　一、.同学们最担心的是听力选项的预览时间，从表中可以看出，在9：45-10：00之间收答题卡一和最后试音时间时可以预览听力部分的选项，建议考生要充分利用这段时间扫描passage部分的选项，弄清三篇文章的主题，至于短对话第一题的四个选项在播音前6秒看还来得及。

　　二、注意听力测试三个section前没有指令，直接播放题目，这与旧四级听力完全不同，考生听时需要集中注意力，不要错过重要的信息点。

　　三、注意作文和快速阅读后要收答题卡一，然后才能开始做后面的试题。学生平常练习时应注意每部分时间的控制，在规定的时间内完成规定的项目，不要跨区做题，这样才能适应新四级的考场要求。

　　四、注意写作文的时候，没有试题册，这样会避免考生从试题册中寻找相关的英语表达抄到作文中。

　　五、做翻译题时，试题册已经收上去，避免考生从试题册中找单词的拼写或习惯用语。

　　新四级考试，题型多样，题量大时间紧，但考生只要在考场上合理有效的利用好时间，在考试结束时，能顺利答完所有的题目，一定会取得满意的成绩。
]]> http://www.cpsky.net/article.asp?id=19 <![CDATA[God Is A Girl]]> aapu@163.com(admin) Tue,21 Feb 2006 12:06:37 +0800 http://www.cpsky.net/default.asp?id=19
Remembering me,
Discover and see
All over the world,
She's known as a girl
To those who a free,
The mind shall be key
Forgotten as the past
'Cause history will last

God is a girl,
Wherever you are,
Do you believe it, can you recieve it?
God is a girl,
Whatever you say,
Do you believe it, can you recieve it?
God is a girl,
However you live,
Do you believe it, can you recieve it?
God is a girl,
She's only a girl,
Do you believe it, can you recieve it?

She wants to shine,
Forever in time,
She is so driven, she's always mine
Cleanly and free,
She wants you to be
A part of the future,
A girl like me
There is a sky,
Illuminating us, someone is out there
That we truly trust
There is a rainbow for you and me
A beautiful sunrise eternally

God is a girl
Wherever you are,
Do you believe it, can you recieve it?
God is a girl
Whatever you say,
Do you believe it, can you recieve it?
God is a girl
However you live,
Do you believe it, can you recieve it?
God is a girl
She's only a girl,
Do you believe it, can you recieve it?

END]]>