網際網路的歷史英語閱讀題
① 一篇英語閱讀題
雖然慢了，但是保證准確！
1. D
依據：They made the change because they wanted every basketball they use to feel and bounce（彈起）the same. Not all leather balls are exactly alike in weight or how they bounce, but the synthetic balls are.
2. A
依據：For example, the scientists studied friction（摩擦力）, which in this case affects the ability of a player to hold onto a ball. 「The greater the friction, the better it will stick to his hand,」 explains a scientist.
3. C
依據：The scientists also tested bounce and found that the logo（商標）printed on the new balls made their surface uneven（不平）and caused them to bounce a little strangely compared with the leather balls.
4. D
依據：That』s because sweat（汗水）stays on the surface of the synthetic balls but gets taken into the leather balls.
5. B
依據：In January, the NBA went back to using the leather balls. They aren』t perfect, but for now, that』s just the way the ball bounces.
② 一篇英語閱讀題，急
C B A
純手打，望採納。
解釋：第一題答案在第二個活動那一段的倒數第二回行：Reserve your spot before availability, reserve的意思是預定，答相當於book。
第二題的答案在第四個活動的內容里，整個都是在說與music有關的活動。
第三個題的答案在三個活動里的第一句：G2 is designed specifically for girls.
③ 英語閱讀theriseoftheinternet
互聯網的興起
這里有一篇 The rise of the internet of things ，物聯網的興內起。
Here's a phrase you're about to hear a lot more of —容 if you haven't already: the "Internet of Things."
Why? It's about to be the next big thing. What does it mean? It's not just computers and phones that are linked up to the Internet — it's your stuff: refrigerators and glasses and trains and buildings.
④ 關於網際網路的英語作文 120字左右
The Internet is a good friend to us. It gives us life to a great convenience. We can use it to study, games, reading, and friends.
But, excessive addiction computer, to our body and learning are very hurt.
⑤ 關於網際網路的歷史和發展
見網路詞條
計算機網路只是傳播信息的載體，而INTERNET的優越性和實用性則在於本身。網際網路最高層域名分為機構性域名和地理性域名兩大類，目前主要有14 種機構性域名。 它連接著所有的計算機，人們可以從互聯網上找到不同的信息，有數百萬對人們有用的信息，你可以用搜索引擎來找到你所需的信息。搜索引擎幫助我們更快更容易的找到信息，只需輸入一個或幾個關鍵詞，搜索引擎會找到所有符合要求的網頁，你只 網際網路示意圖
需要點擊這些網頁。
英文介紹
The Internet is an international computer network. It connects computer networks all over the world.People can get different kinds of information from it.There are millions of websites on the Internet.There is a lot of useful information on the websites.You can use search engines to find the information you need.Search engines help us find information quickly and easily.Type in a keyword or keywords and the search engine will give you a list of suitable websites to look at.
編輯本段溯源
TCP/IP
網際網路是Internet的中文譯名，它的前身是美國國防部高級研究計劃局（ARPA）主持研製的ARPAnet。 20世紀50年代末，正處於冷戰時期。當時美國軍方為了自己的計算機網路在受到襲擊時 關於網際網路的技術資料
，即使部分網路被摧毀，其餘部分仍能保持通信聯系，便由美國國防部的高級研究計劃局（ARPA）建設了一個軍用網，叫做「阿帕網」（ARPAnet）。阿帕網於1969年正式啟用，當時僅連接了4台計算機，供科學家們進行計算機聯網實驗用。這就是網際網路的前身。 到70年代，ARPAnet已經有了好幾十個計算機網路，但是每個網路只能在網路內部的計算機之間互聯通信，不同計算機網路之間仍然不能互通。為此， ARPA又設立了新的研究項目，支持學術界和工業界進行有關的研究。研究的主要內容就是想用一種新的方法將不同的計算機區域網互聯，形成「互聯網」。研究人員稱之為「internetwork」，簡稱「Internet」。這個名詞就一直沿用到現在。 在研究實現互聯的過程中，計算機軟體起了主要的作用。1974年，出現了連接分組網路的協議，其中就包括了TCP/IP——著名的網際互聯協議IP和傳輸控制協議TCP。這兩個協議相互配合，其中，IP是基本的通信協議，TCP是幫助IP實現可靠傳輸的協議。 TCP/IP有一個非常重要的特點，就是開放性，即TCP/IP的規范和Internet的技術都是公開的。目的就是使任何廠家生產的計算機都能相互通信，使Internet成為一個開放的系統。這正是後來Internet得到飛速發展的重要原因。 ARPA在1982年接受了TCP/IP，選定Internet為主要的計算機通信系統，並把其它的軍用計算機網路都轉換到TCP/IP。1983年，ARPAnet分成兩部分：一部分軍用，稱為MILNET；另一部分仍稱ARPAnet，供民用。
發展
1986年，美國國家科學基金組織（NSF）將分布在美國各地的5個為科研教育服務的超級計算機中心互聯，並支持地區網路，形成NSFnet。1988 年，NSFnet替代ARPAnet成為Internet的主幹網。NSFnet主幹網利用了在ARPAnet中已證明是非常成功的TCP/IP技術，准許各大學、政府或私人科研機構的網路加入。1989年，ARPAnet解散，Internet從軍用轉向民用。 Internet的發展引起了商家的極大興趣。1992年，美國IBM、MCI、MERIT三家公司聯合組建了一個高級網路服務公司（ANS），建立了一個新的網路，叫做ANSnet，成為Internet的另一個主幹網。它與NSFnet不同，NSFnet是由國家出資建立的，而ANSnet則是ANS 公司所有，從而使Internet開始走向商業化。 1995年4月30日，NSFnet正式宣布停止運作。而此時Internet的骨幹網已經覆蓋了全球91個國家，主機已超過400萬台。在最近幾年，網際網路更以驚人的速度向前發展，很快就達到了今天的規模。
編輯本段歷史
Internet最早來源於美國國防部高級研究計劃局DARPA(Defense advanced Research Projects Agency)的前身ARPA建立的ARPAnet，該網於1969年投入使用。從60年代開始，ARPA就開始向美國國內大學的計算機系和一些私人有限公司提供經費，以促進基於分組交換技術的計算機網路的研究。1968年，ARPA為ARPAnet網路項目立項，這個項目基於這樣一種主導思想：網路必須能夠經受住故障的考驗而維持正常工作，一旦發生戰爭，當網路的某一部分因遭受攻擊而失去工作能力時，網路的其它部分應當能夠維持正常通信。最初，ARPAnet主要用於軍事研究目的，它有五大特點： ⑴支持資源共享； ⑵採用分布式控制技術； ⑶採用分組交換技術； ⑷使用通信控制處理機； ⑸採用分層的網路通信協議。
1972年
ARPAnet在首屆計算機後台通信國際會議上首次與公眾見面，並驗證了分組交換技術的可行性，由此，ARPAnet成為現代計算機網路誕生的標志。 ARPAnet在技術上的另一個重大貢獻是TCP/IP協議簇的開發和使用。
1980年
ARPA投資把TCP/IP加進UNIX(BSD4.1版本)的內核中，在BSD4.2版本以後,TCP/IP協議即成為UNIX操作系統的標准通信模塊。
1982年
Internet由ARPAnet，MILNET等幾個計算機網路合並而成，作為Internet的早期骨幹網，ARPAnet試驗並奠定了Internet存在和發展的基礎，較好地解決了異種機網路互聯的一系列理論和技術問題。 1983年，ARPAnet分裂為兩部分：ARPAnet和純軍事用的MILNET。該年1月，ARPA把TCP/IP協議作為ARPAnet的標准協議，其後，人們稱呼這個以ARPAnet為主幹網的網際互聯網為Internet，TCP/IP協議簇便在Internet中進行研究，試驗，並改進成為使用方便，效率極好的協議簇。與此同時，區域網和其它廣域網的產生和蓬勃發展對Internet的進一步發展起了重要的作用。其中，最為引人注目的就是美國國家科學基金會NSF(National Science Foundation)建立的美國國家科學基金網NSFnet。
1986年
NSF建立起了六大超級計算機中心，為了使全國的科學家、工程師能夠共享這些超級計算機設施，NSF建立了自己的基於TCP/IP協議簇的計算機網路NSFnet。NSF在全國建立了按地區劃分的計算機廣域網，並將這些地區網路和超級計算中心相聯，最後將各超級計算中心互聯起來。地區網的構成一般是由一批在地理上局限於某一地域，在管理上隸屬於某一機構或在經濟上有共同利益的用戶的計算機互聯而成，連接各地區網上主通信結點計算機的高速數據專線構成了NSFnet的主幹網，這樣，當一個用戶的計算機與某一地區相聯以後，它除了可以使用任一超級計算中心的設施，可以同網上任一用戶通信，還可以獲得網路提供的大量信息和數據。這一成功使得NSFnet於1990年6月徹底取代了ARPAnet而成為Internet的主幹網。
⑥ 寫一篇關於網際網路的短文（英語)
The Internet網路
With the development of science,the network has been one of the most important parts in people's daliy life.隨著科學的發展,網路已經成為人們日常生活中最重要的部分之一
We can do many things with the help of network.For example,we can obtain much knowledge,read all kinds of news of the world,and use OICQ to talk with each other.We can also do shopping,search information,receive and send e-mail,play games,and enjoy music.In a word,it's very useful.通過網路的幫助,我們能做許多事情.例如,我們可以學習各種各樣的知識,讀遍全世界的各種新聞,用OICQ與他人交談.我們還可以購物,查找信息,接受和發送電子郵件,玩游戲,聽音樂.用一句話說,網路非常有用
When I'm tired,I listen to pop songs,and download MV,short movies,or beautiful pictures.In festival days,Isend greeting cards to my classmates to develop friendship.每當我累了的時候,我會聽流行歌曲,下載MV,短小的電影或漂亮的圖片.在節日里,我給我的同學發送賀卡以增進友誼.
The Internet make our life colorful and convenient.Many thanks to the network.You are my good friend.網路使我們的生活多姿多彩,又為我們的生活帶來方便.謝謝互連網,你是我的好朋友.
⑦ 跪求50篇英語閱讀理解題（帶答案）
（2）
No.4 middle School
Kunming ,yunnan
April 2nd ,2004
Dear editor (編輯) ，
I live in a beautiful city . Many visitors come to my city . there are so many colorful peacocks (孔雀) here .
The peacocks mostly live on the grass land of Dongfeng Square
They are given food freely by visitors . They usually throw food to them , and don』t think about at all whether the food is right or not . Some of the peacocks became ill , some even died after eating the bad food given by the visitors.
I』m sure most of the visitors who throw food to the peacocks really like the birds , but don』t realize (意識到) that they may be doing them harm (傷害).
The visitors should be told that what have done is very harmful to the birds , and this kind of thing must be stopped from happening .
Perhaps we can build some small shops beside Dongfeng Square to sell peacock food . For us every person , it』s our ty to give more love to these beautiful birds and to look after them carefully.
Yours,
Sun Yan
()6.Many visitors come to the writer』s city to __________.
A. do some shopping B. see beautiful peacocks
C. play on Dongfeng square D. eat nice food
()7.Some peacocks became ill and died because some visitors ______;
A. did』t give them any food B. gave them too much food
C. threw them some bad food D. loved them and played with them
()8.Some shops can be built beside Dongfeng Square so that they may _____________.
A.sell food for visitors B. sell food for peacocks
C.make the square more beautiful D.have the beautiful birds
()9.From the passage we know people should __________.
A. live and play with the birds
B. stop the birds from eating too much
C. give right food to the birds
D. give more food to the birds
()10.We can guess the writer of the letter, Sun Yan , may be a _____.
A. visitor B. shopkeeper C.square keeper D. student
6-10：B C B C D
（3）
Every town in the United States has a post office . Some are very small , and you may also find them in the corner of a shop . Others are larger buildings . They are open five days a week and on Saturday mornings . From Monday through Friday they are usually open from 8:30 to 4:30 .
If you know how much the postage (郵資) is for your letter , you can buy stamps at any window. In some post offices you can buy stamps from machines . Stamps are sold many different prices , from one cent (美分) to many dollars . If you are not sure how much postage is for you letter , you may ask the man or the woman in the post office for help . he or she will give you the stamps you need . If you are sending your letter far away , you should use airmail envelopes (航空信封) . Remember that postage will be more expensive for a letter to be sent outside the country.
At a post office you can also buy postcards . A postcard is cheaper than a letter . Usually the price of postage for a postcard is about half that of a letter . The postcards that you buy at a post office do not have pictures . However ,also they are not to be sent outside the country .
Letters are an easy and cheap way to keep in touch with people in many different countries .
()11.The passage tell us that we can find ________ easily in the United States of America.
A. post office s B.large buildings
C.small shops D.different banks
()12.The post offices in the United States are open _________.
A.seven hours a day B.six hours a day
C.five hours a day D.eight hours a day
()13.If you are not sure how much postage is for your letter ,you can____.
A. go and buy stamps from the machine in the post officesend a cheap postcard instead of your letter
B. get in touch with somebody you know in the post office
C.ask the man or the woman in the post office for help
()14.The price of postage for ________ is more expensive.
A.a beautiful postcard B.a letter written on envelope
C.a letter by airmail D.a postcard with pictures
()15.The passage tells us something about ________ in the USA
A.the post B.the postage C.letters D.postcards
11-15 A D D C A
（4）
Long, long ago there was a very foolish thief. Do you know what he did one day? When he wanted to steal(偷) the bell on his neighbour』s door, he walked up to the door, took hold of(抓住) the bell and pulled hard. The bell made a very loud noise. The thief was afraid and went home.
Then he sat down to think, 「I must do something about the noise,」 he said. He thought and thought. At last he had an idea. 「Ah, I』ll put some cotton in my ears. Then I won』t be able to hear the noise.」 The next day he went to the door of his neighbour, and took hold of the bell. This time he pulled even harder. The bell rang loudly, but the thief did not hear anything. With another hard pull he got the bell out. Just then the neighbour came running out.
「Steal my bell? I』ll teach you a lesson(教訓),」 the angry man shouted. And he hit the thief on the nose.
The foolish thief did not know how the neighbour found out he was stealing the bell. 「Why did he come out just then?」 he wondered (感到疑惑).
( )16. The thief was trying to get .
A. his neighbour B. his neighbour』s doorbell
C. some cotton D. a door with a bell on it
( )17. The thief put some cotton in his ears. He thought it would be for him to steal the doorbell.
A. safe B. difficult C. dangerous D. easy
( )18. The neighbour ran out probably(很可能) because .
A. he knew his doorbell was being stolen
B. he thought someone was eager (渴望的) to visit him
C. he realized (意識到) something strange happened
D. Both B and C
( )19. The neighbour hit the thief to .
A. give him lessons B. punish (懲罰) him for stealing
C. help him with the bell D. be his teacher
( )20. Which of the following is TRUE?
A. The thief understood why he was hit on the nose.
B. The thief knew why the neighbour came out.
C. The thief thought the neighbour couldn』t hear the noise the bell made.
D. The thief didn』t want to know why the neighbour ran out.
16-20 B A D B C
（5）
A farmer was put in prison(監獄). One day, he got a letter from his wife.
「I am worried about out farm,」 she wrote. 「It』s time to plant potatoes ,
but I can』t do all the digging(挖) by myself.」
The farmer thought over and then had an idea. He wrote to his wife,「Don』t dig
the fields. This id where my gold(金子) is. Don』t plant potatoes until I comehome.
A few days later, the farmer got anther letter from his wife. It said, 「Two days
ago, about ten prison guards(監獄看守) came to our fields. It looked as if they were looking for something. They have g our field.」
The farmer wrote to his wife at once. 「Now you can plant our potatoes,」 he wrote.
( )21.The farmer was put in prison ________.
A. because he had done something wrong
B. because he had a lot of gold in the fields
C. The writer didn』t say anything about why the farmer was put in prison
D. For nothing
( )22.The farmer』s wife was much worried about _____ .
A. her husband B. their farm C. planting potatoes D. herself
( )23.The farmer told his wife __ first.
A. not to dig the fields B. to dig the fields
C. to ask the prison guards for help D. to find the gold in the fields
( )24.Why did the prison guards dig the farmer』s fields ?________.
A. They wanted to help the farmer
B. Their leader ordered them to do so
C. The farmer asked them to do so
D. They wanted to find out the gold
( )25.Why did the farmer ask his wife to plant potatoes at once ? Because _____.
A. their fields had been g
B. the gold was found out
C. the prison guards asked him to do so
D. the prison guards were digging the fields
21—25 C B A D A
（6）
An owl is a bird with very large eyes. Those eyes make the owl look clever. The owl can not move its eyes freely as people can. It can only look straight ahead (朝前). If it wants to look at both sides, it must turn its neck.
Owls see better at night than ring the day. At night they look for food. They eat mice and insects.
Owls make a strange noise because the owls sleep most of the day. They usually give their cries at night. The cry sounds like 「Whoo! Whoo!」. This strange sound sometimes frightens people at night.
26. An owl looks clever because it can look straight ahead.
27. An owl looks for food at night because it sees better at night than ring the day.
28. An owl lives on all kinds of birds.
29. The cry of an owl is frightening.
30. Man must not kill owls because they are helpful to people.
26-30 B A B A A
（7）
Coffee has become the most popular American drink. Today people in the United States drink more coffee than people in any of the other countries. People drink coffee at breakfast, at lunch, at dinner and between meals. They drink hot coffee or coffee with ice in it. They drink it at work and at home. They eat coffee ice-cream and coffee candy. Coffee is black and very strong. Different people like to drink it in different ways. Some people like coffee with cream or sugar in it. Other people like coffee with both cream and sugar in it. In all ways it is served. Coffee has become an international drink.
31. Coffee is an ____________ drink.
A . interesting B. international C. ice-cream D. American
32. Different people like to drink coffee ____________.
A. at work or at home B. in different ways C. with cream or sugar D. between meals
33. Today Americans drink ____________ coffee than people in any of the other countries.
A. as much as B. less C. more D. most
34. 「Coffee is black and very strong.」 The word STRONG here means ____________.
A.堅固的 B.淡的 C.清的 D.濃的
35. ____________ is the most popular American drink.
A. Black tea B. Coffee C. Water with ice D. Whisky
31-35 B B C D B
（8）
Computers are useful machines. They can help people a lot in their everyday life. For example, they can help people save much time, and they can help people work out many problems they can』t do easily. Our country asks everyone to learn to use computers except the old people.
Today more and more families own computers. Parents buy computers for their children.
They hope computers can help them improve (提高) their studies in school. Yet many of the children use computers to play games, to watch video or to sing Karaoke, instead of studying. So many teachers and parents complain (抱怨) that computers can not help children to study but make them fall behind. So computers are locked by parents in the boxes.
In some other countries, even some scientists hate computers. They say computers let millions of people lost their jobs or bring them a lot of trouble.
Will computers really bring trouble to people or can they bring people happiness? It will be decided by people themselves.
36. Why do we say the computer is a useful machine? Because _______________.
A. our country asks us to learn it
B. it can help us a lot
C. we can use it to play games
D． it can help us to find jobs
37. What do many teachers and parents complain about? _______________.
A. Their students and children use computers to play games.
B. Computers let them lost their jobs.
C. Computers make the students and children fall behind.
D. Computers bring people a lot of trouble.
38. In this passage we know computers _______________.
A. also bring us trouble
B. bring us happiness only
C. are hated by people
D. are bad for people』s health
39. Can computers really help children to study? _______________.
A. Yes, they can. B. It』s hard to say C. No, they can』t. D. Of course not.
40. How do you understand the last sentence of this passage? I think it means _______.
A. computers are used by people
B. people can live well without computers
C. one must decide how to use computers
D. computers are strange machines
36-40 B C A A C
（9）
Once upon a time there lived an old man. He had three sons. One day, he called them together and said, "Sons, I will die soon. To my oldest son I give half my camels, to my second, one-third(三分之一), and to my youngest, one-ninth (九分之一)." Soon after that he died.
Now, the old man had seventeen camels, and the three brothers didn't know how to do as their father said. They thought a long time about the problem, and it seemed that they must either kill some of the camels and cut them into pieces, or disobey their father. At last they went to their father's old friend and asked for his advice. As soon as he heard their story, he said, "I will help you. I was a good friend of your father's. I am old. I have only one camel, but take it-it is yours."
The three sons thanked the old man and took his camel. Now they found it was easy to do as their father wished, The oldest took half- that was nine camels; the second took one-third, that was six; and the youngest took one-ninth, that was two.
After each had got his camels, they found that there was still a camel there. So, to show their thanks to their father's friend, they gave the camel back to him
41. "Once upon a time" means " ________".
A. long long ago B. not very long ago
C. at once D. sometimes
42. The meaning of "disobey" in the second paragraph is" ________".
A. 服從 B. 違背 C. 聽從 D. 嘲笑
43. The meaning of "asked for his advice" in the second paragraph is " ________".
A. 向他請教 B. 問他數量 C. 批評他 D. 勸告他
44. The second old man ________the three brothers.
A. was good to B. was not good to C. didn't like D. cheated(哄騙)
45. Both the two old men in the story were ________.
A. foolish B. clever C. poor D. rich
41-45 A B A A B
（10）
Tom lived by himself a long way from town. He hardly went to town, but one day he went into town to buy a few things. After he bought them, he went into a restaurant and sat down at a table. When he looked around, he saw some old people put glasses on before reading their newspapers. So after lunch he decided to go to a shop to buy himself one pair, too. He walked along the road, and soon found a shop.
The man in the shop let him try on a lot of glasses, but Tom always said, "No, I can't read with these."
The man became puzzled (迷惑的) , and he said, "Excuse me, but can you read?"
"No, of course I can't!" Tom said angrily. "If I could read before, do you think I would come here to buy your glasses?"
46. Tom lived ______.
A. with his family B. near town C. in the country D. in town
47. Tom didn't go to town______.
A. never B. often C. sometimes D. sometime
48. Why did Tom decide to buy a pair of glasses?
A. Because he thought if he bought them, he could read.
B. Because they were very bright.
C. Because they were cheap.
D. Because he could read newspaper.
49. Tom went to the shop to ______.
A. have a rest B. have dinner C. wear glasses D. buy a pair of glasses
46-49 C B A D
(11)
We know mosquitoes very well. Mosquitoes fly everywhere. They can be found almost all over the world, and there are more than 2,500 kinds of them.
No one likes the mosquito. But the mosquito may decide if she loves you. She? Yes, she. The male mosquito doesn』t bite! Only the female mosquito bites because she needs blood to lay eggs. She is always looking for things or people she wants to bite. If she likes what she finds, she bites. But if she doesn』t like your blood, she will turn to someone else for more delicious blood. Next time a mosquito bites you, just remember you are chosen. You』re different from the others!
If the mosquito likes you, she lands on your body without letting you know. She bites you so quickly and quietly that you may not feel anything different. After she bites, you will have an itch(癢) on your body because she puts something from her mouth together with your blood. When the itch begins, she has flown away.
And then what happens? Well, after her delicious dinner, the mosquito feels tired. She wants to find a place to have a good rest. There, in a tree or on a wall, she begins to lay eggs, hundreds of eggs.
( )51.All the people don』t like mosquitoes.
( )52.All mosquitoes like to bite people for blood.
( )53.If a mosquito wants to bite you, it means she is very tired.
( )54.The mosquito bites you too quickly and quietly to let you know.
( )55.The itch begins after the mosquito flies away.
51-55 FFFTT
(12)
Do you know why different animals or pests(昆蟲) have their special colours? Colours in them seem to be used mainly to protect themselves.
Some birds like eating locusts(蝗蟲), but birds cannot easily catch them. Why? It is because locusts change their colours together with the change of the colours of crops(莊稼). When crops are green, locusts look green. But as the harvest (收獲)time comes, locusts change to the same brown colour as crops have. Some other pests with different colours from plants are easily found and eaten by others. So they have to hide themselves for lives and appear only at night.
If you study the animal life, you』ll find the main use of colouring is to protect themselves. Bears, lions and other animals move quietly through forests. They cannot be easily seen by hunters. This is because they have the colours much like the trees.
Have you ever found an even more strange act? A kind of fish in the sea can send out a kind of very black liquid(液體) when it faces danger. While the liquid spreads over(散開), its enemies(敵人) cannot find it. And it immediately swims away. So it has lived up to now though it is not strong at all.
( )56.From the passage we learn that locusts________.
A. are small animals
B. are easily found by birds
C. are dangerous to their enemies
D. change their colours to protect themselves
( )57.How can pests with different colours from plants keep out of danger?
A. They run away quickly.
B. They have the colours much like their enemies.
C. They hide themselves by day and appear at night.
D. They have to move quietly.
( )58.Bears and lions can keep safe because________.
A. they have the colours much like the trees
B. they move quietly
C. they like brown and grey colours
D. they live in forests
( )59.Why can the kind of fish live up to now?
A. Because it is very big and strong.
Because the liquid it sends out can help it escape from its enemies.
B. Because the liquid it sends out can kill its enemies.
C. Because it swims faster than any other fish.
( )60.Which is the best title for this passage?
A. The Change of Colours for Animals and Pests.
B. Colours of Different Animals and pests.
C. The Main Use of Colours for Animals and Pests.
D. Some Animals and Pests.
56-60 D C A B C
但上面字數有限啊！
⑧ 英語閱讀題的答案
because they can be ready for the start of the lessons.
The students must have their lunch ans supper in dinning room.
They can only use the personal computer in dormitory room when the house rules allow.
Only the school doctors can give out medicines to the students.
⑨ 網際網路的發展史
互 聯 網 發 展 史
1、什麼是Internet?
Internet是計算機交互網路的簡稱，又稱網間網。它是利用通信設備和線路將全世界上不同地理位置的功能相對獨立的數以千萬計的計算機系統互連起來，以功能完善的網路軟體（網路通信協議、網路操作系統等）實現網路資源共享和信息交換的數據通信網。
2、Internet的起源和發展
Internet的最早起源於美國國防部高級研究計劃署DARPA（Defence Advanced Research Projects Agency）的前身ARPAnet，該網於1969年投入使用。由此，ARPAnet成為現代計算機網路誕生的標志。
從六十年代起，由ARPA提供經費，聯合計算機公司和大學共同研製而發展起來的ARPAnet網路。最初，ARPAnet主要是用於軍事研究目的，它主要是基於這樣的指導思想：網路必須經受得住故障的考驗而維持正常的工作，一旦發生戰爭，當網路的某一部分因遭受攻擊而失去工作能力時，網路的其他部分應能維持正常的通信工作。ARPAnet在技術上的另一個重大貢獻是TCP/IP協議簇的開發和利用。作為Internet的早期骨幹網，ARPAnet的試驗並奠定了Internet存在和發展的基礎，較好地解決了異種機網路互聯的一系列理論和技術問題。
1983年，ARPAnet分裂為兩部分，ARPAnet和純軍事用的MILNET。同時，區域網和廣域網的產生和逢勃發展對Internet的進一步發展起了重要的作用。其中最引人注目的是美國國家科學基金會ASF（National Science Foundation）建立的NSFnet。NSF在全美國建立了按地區劃分的計算機廣域網並將這些地區網路和超級計算機中心互聯起來。NFSnet於1990年6月徹底取代了ARPAnet而成為Internet的主幹網。
NSFnet對Internet的最大貢獻是使Internet向全社會開放，而不象以前的那樣僅供計算機研究人員和政府機構使用。1990年9月，由Merit，IBM和MCI公司聯合建立了一個非盈利的組織―先進網路科學公司ANS（Advanced Network &Science Inc.）。ANS的目的是建立一個全美范圍的T3級主幹網，它能以45Mbps的速率傳送數據。到1991年底，NSFnet的全部主幹網都與ANS提供的T3級主幹網相聯通。
Internet的第二次飛躍歸功於Internet的商業化，商業機構一踏入Internet這一陌生世界，很快發現了它在通信、資料檢索、客戶服務等方面的巨大潛力。於是世界各地的無數企業紛紛湧入Internet，帶來了Internet發展史上的一個新的飛躍。
3、Internet在我國的發展進程及現狀
關於中國公用數據通信網 我國已建立了四大公用數據通信網，為我國Internet的發展創造了條件。
（1）中國公用分組交換數據通信網（ChinaPAC）。該網於1993年9月開通，1996年底已覆蓋全國縣級以上城市和一部分發達地區的鄉鎮，與世界23個國家和地區的44個數據網互聯。
（2）中國公用數字數據網（ChinaDDN）。該網於1994年開通，1996年底覆蓋到3000個縣級以上的城市和鄉鎮。我國的四大互聯網的骨幹大部分都是採用ChinaDDN。
（3）中國公用幀中繼網（ChinaFRN）。該網已在我國的8大區的省會城市設立了節點，向社會提供高速數據和多媒體通信。
（4）中國公用計算機互聯網（ChinaNet）。該網於1995年與Internet互聯，物理節點覆蓋30個省（市、自治區）的200多個城市，業務范圍覆蓋所有電話通達的地區。1998年7月，中國公用計算機互聯網（ChinaNet）骨幹網二期工程開始啟動。二期工程將八個大區間的主幹帶寬擴充至155M，並且將八個大區的節點路由器全部換成千兆位路由器。
2000年下半年,中國電信利用n*10Gbps DWDM和千兆位路由器技術,對ChinaNet進行了大規模擴容。目前，ChinaNet網路節點間的路由中繼由155M提升到2.5Gbps，提速16倍，到2000年底ChinaNet國內總帶寬已達800Gbps，到2001年3月份國際出口總帶寬突破3Gbps。
關於中國Internet的發展階段
互聯網在中國的發展歷程可以大略地劃分為三個階段：
第一階段為1986.6－1993.3是研究試驗階段(E-mail Only)
在此期間中國一些科研部門和高等院校開始研究Internet聯網技術，並開展了科研課題和科技合作工作。這個階段的網路應用僅限於小范圍內的電子郵件服務，而且僅為少數高等院校、研究機構提供電子郵件服務。發展經歷如下：
1986 : Dial up (Terminal)
1990 : X.25 (1989.11: CNPAC,1993.9: CHINAPAC)
1993.3 : Leased Line（DECnet） （Email Only）
第二階段為1994.4至1996年，是起步階段（Full Function Connection）
1994年4月，中關村地區教育與科研示範網路工程進入互聯網，實現和Internet的TCP/IP連接，從而開通了Internet全功能服務。從此中國被國際上正式承認為有互聯網的國家。之後，ChinaNet、CERnet、CSTnet、ChinaGBnet等多個互聯網路項目在全國范圍相繼啟動，互聯網開始進入公眾生活，並在中國得到了迅速的發展。1996年底，中國互聯網用戶數已達20萬，利用互聯網開展的業務與應用逐步增多。
第三階段從1997年至今，是快速增長階段。
國內互聯網用戶數97年以後基本保持每半年翻一番的增長速度。增長到今天，上網用戶已超過2000萬。據中國互聯網路信息中心（CNNIC）公布的統計報告顯示，截止到2001年6月30日，我國共有上網計算機約1002萬台，其中專線上網計算機：163萬台，撥號上網計算機：839萬台，上網用戶約2650萬人，其中專線上網的用戶人數為454萬，撥號上網的用戶人數為1793萬，同時使用專線與撥號的用戶人數為403萬。除計算機外同時使用其它設備（移動終端、信息家電）上網的用戶人數為107萬。CN下注冊的域名128362個，WWW站點242739個，國際出口帶寬3257Mbps。
詳情可參考中國互聯網信息中心（CNNIC）的《中國Internet發展大事記》。 中國目前有十傢具有獨立國際出入口線路的商用性互聯網骨幹單位，還有面向教育、科技、經貿等領域的非營利性互聯網骨幹單位。現在有600多家網路接入服務提供商（ISP），其中跨省經營的有200家左右。
在網路基礎設施方面，近年來，中國先後啟用了數個國際光纜系統。已經建成並投入使用的有；中日、中韓、環球海底光纜系統、亞歐陸地光纜系統；正在建設的有：亞太2號海底光纜、中美海底光纜、亞歐海底光纜。1999年共有13條國內干線光纜投入使用或試運行。光纜總長100萬公里。國內互聯網骨幹網路對原有信道全面擴容，中繼電路以155M為主。隨著密集波分復用（DWDM）技術廣泛應用於光通信建設，互聯網骨幹網帶寬可達2.5G-40G。
據中國電信集團公司副總經理冷榮泉介紹，我國網際網路骨幹網從1996年至今已經歷了3個階段：1996年之前，多數採用64K至2M傳輸通道；1997年至1999年多為2M至115M的通道；2000年到2001年從115M跳到了2.5G；從2002年開始，將逐步進入10G時代。
2002年1月11日，中國電信上海―杭州10G IP over DWDM建成開通，該通道所構建的長途波分復用傳輸系統，採用了思科公司長途波分復用系統和系列高速互聯網路由器。這一系統已被世界各地的大型電信運營商用於構建規模龐大、運行快速穩定的「IP+Optical」網路，並被證明具有良好的穩定性、可靠性和先進性。這條全國最寬的數據通信通道的開通，標志著我國網際網路骨幹傳輸網從2.5G步入10G時代，標志著中國電信數據傳輸能力已經達到國際先進水平，中國電信的數據網已經成為真正的高速數據網路、海量帶寬網。
關於中國十大互聯網簡況
目前我國有10家網路運營商（即十大互聯網路單位），有200家左右有跨省經營資格的網路服務提供商（ISP）。十大互聯網路單位分別是：
(1)中國公用計算機互聯網（CHINANET） (2)中國科技網（CSTNET）
(3)中國教育和科研計算機網（CERNET） (4)中國金橋信息網（CHINAGBN）（已並入網通）
(5)中國聯通互聯網（UNINET） (6)中國網通公用互聯網（CNCNET）
(7)中國移動互聯網（CMNET） (8)中國國際經濟貿易互聯網（CIETNET）
(9)中國長城互聯網（CGWNET） (10)中國衛星集團互聯網（CSNET）
其中非營利單位有四家：中國科技網、中國教育和科研計算機網、中國國際經濟貿易互聯網和中國長城互聯網。這十大互聯網路單位都擁有獨立的國際出口。調查顯示，截止2001年9月30日，我國的國際出口帶寬總和已達到5724M（見下圖，未包括中國長城互聯網的國際出口帶寬數據），與CNNIC在2001年1月的互聯網統計調查報告中公布的2799M相比，我國大陸在短短9個月的時間里，國際出口帶寬增加了2925M，增幅為105%。其中，與美國相連的有4023M（佔70.3%），與日本相連的有314M，與韓國相連的有251M，與中國香港相連的有749M，與中國澳門相連的有14M，還與澳大利亞、英國等國家相連。另外，這十大互聯網路單位與國家互聯網交換中心（NAP）之間的連接帶寬也達到3558M。我國十大互聯網單位之間的相互連接帶寬數，以及我國部分ISP與十大互聯網單位之間的連接帶寬數和國際出口帶寬情況請參考中國互聯網聯接帶寬Flash圖。
4、互聯網帶來的機遇與挑戰
互聯網給全世界帶來了非同尋常的機遇。人類經歷了農業社會、工業社會，當前正在邁進信息社會。信息作為繼材料、能源之後的又一重要戰略資源，它的有效開發和充分利用，已經成為社會和經濟發展的重要推動力和取得經濟發展的重要生產要素，它正在改變著人們的生產方式、工作方式、生活方式和學習方式。
首先，網路縮短了時空的距離，大大加快了信息的傳遞．使得社會的各種資源得以共享。
其次，網路創造出了更多的機會，可以有效地提高傳統產業的生產效率，有力地拉動消費需求，從而促進經濟增長。推動生產力進步。
第三，網路也為各個層次的文化交流提供了良好的平台。
互聯網的確創造了一個奇跡，但在奇跡背後，存在著日益突出的問題，給人們提出了極大的挑戰。比如，信息貧富差距開始擴大，財富分配出現不平等；網路的開放性和全球化，促進了人類知識的共享和經濟的全球化。但也使得網路安全和信息安全成為非常嚴峻的問題；網路的競爭已成為國家間和企業間高技術的競爭和人才的競爭；網路帶來信息的全球性流通，也加劇了文化滲透，各國都在為捍衛自己的網路文化而努力。中國擁有悠久的文化，如何使得這種厚重的文化在網路上得以延伸，這個問題顯得尤其突出。
5、Internet的發展特點與趨勢
Internet發展經歷了研究網、運行網和商業網3個階段。至今，全世界沒有人能夠知道Internet的確切規模。Internet正以當初人們始料不及的驚人速度向前發展，今天的Internet已經從各個方面逐漸改變人們的工作和生活方式。人們可以隨時從網上了解當天最新的天氣信息、新聞動態和旅遊信息，可看到當天的報紙和最新雜志，可以足不出戶在家裡炒股、網上購物、收發電子郵件，享受遠程醫療和遠程教育等等。
Internet的意義並不在於它的規模，而在於它提供了一種全新的全球性的信息基礎設施。當今世界正向知識經濟時代邁進，信息產業已經發展成為世界發達國家的新的支柱產業，成為推動世界經濟高速發展的新的源動力，並且廣泛滲透到各個領域，特別是近幾年來國際互聯網路及其應用的發展，從根本上改變了人們的思想觀念和生產生活方式，推動了各行各業的發展，並且成為知識經濟時代的一個重要標志之一。Internet已經構成全球信息高速公路的雛形和未來信息社會的藍圖。縱觀Internet的發展史，可以看出Internet的發展趨勢主要表現在如下幾個方面：
1）運營產業化
以Internet運營為產業的企業迅速崛起，從1995年5月開始，多年資助Internet研究開發的美國科學基金會（NSF）退出Internet，把NFSnet的經營權轉交給美國3家最大的私營電信公司（即Sprint、MCI和ANS），這是Internet發展史上的重大轉折。
2）應用商業化
隨著Internet對商業應用的開放，它已成為一種十分出色的電子化商業媒介。眾多公司、企業不僅把它作為市場銷售和客戶支持的重要手段，而且把它作為傳真、快遞及其他通信手段的廉價替代品，藉以形成與全球客戶保持聯系和降低日常的運營成本。如：電子郵件、IP電話、網路傳真、VPN和電子商務等等的日漸受到人們的重視便是最好例證。
3）互聯全球化
Internet雖然已有三十來年的發展歷史，但早期主要是限於美國國內的科研機構、政府機構和它的盟國范圍內使用。現在不一樣了，隨著各國紛紛提出適合本國國情的信息高速公路計劃，已迅速形成了世界性的信息高速公路建設熱潮，各個國家都在以最快的速度接入Internet。
4）互聯寬頻化
隨著網路基礎的改善、用戶接入方面新技術的採用、接入方式的多樣化和運營商服務能力的提高，接入網速率慢形成的瓶頸問題將會得到進一步改善，上網速度將會更快，帶寬瓶頸約束將會消除，互聯必然寬頻化，從而促進更多的應用在網上實現，並能滿足用戶多方面的網路需求。
5）多業務綜合平台化、智能化
隨著信息技術的發展，互聯網將成為圖像、話音和數據「三網合一」的多媒體業務綜合平台，並與電子商務、電子政務、電子公務、電子醫務、電子教學等交叉融合。十到二十年內，互聯網將超過報刊、廣播和電視的影響力，逐漸形成「第四媒體」。
綜上所述，隨著電信、電視、計算機「三網融合」趨勢的加強，未來的互聯網將是一個真正的多網合一、多業務綜合平台和智能化的平台，未來的互聯網是移動＋IP＋廣播多媒體的網路世界，它能融合現今所有的通信業務，並能推動新業務的迅猛發展，給整個信息技術產業帶來一場革命。
⑩ 網際網路發展史
Internet的歷史和發展
Internet最早來源於美國國防部高級研究計劃局DARPA(Defense advanced Research Projects Agency)的前身ARPA建立的ARPAnet，該網於1969年投入使用。從60年代開始，ARPA就開始向美國國內大學的計算機系和一些私人有限公司提供經費，以促進基於分組交換技術的計算機網路的研究。1968年，ARPA為ARPAnet網路項目立項，這個項目基於這樣一種主導思想:網路必須能夠經受住故障的考驗而維持正常工作，一旦發生戰爭，當網路的某一部分因遭受攻擊而失去工作能力時，網路的其它部分應當能夠維持正常通信。最初，ARPAnet主要用於軍事研究目的，它有五大特點:
⑴支持資源共享；
⑵採用分布式控制技術；
⑶採用分組交換技術；
⑷使用通信控制處理機；
⑸採用分層的網路通信協議。
1972年，ARPAnet在首屆計算機後台通信國際會議上首次與公眾見面，並驗證了分組交換技術的可行性，由此，ARPAnet成為現代計算機網路誕生的標志。
ARPAnet在技術上的另一個重大貢獻是TCP/IP協議簇的開發和使用。1980年，ARPA投資把TCP/IP加進UNIX(BSD4.1版本)的內核中，在BSD4.2版本以後，TCP/IP協議即成為UNIX操作系統的標准通信模塊。1982年，Internet由ARPAnet，MILNET等幾個計算機網路合並而成，作為Internet的早期骨幹網，ARPAnet試驗並奠定了Internet存在和發展的基礎，較好地解決了異種機網路互聯的一系列理論和技術問題。
1983年，ARPAnet分裂為兩部分:ARPAnet和純軍事用的MILNET。該年1月，ARPA把TCP/IP協議作為ARPAnet的標准協議，其後，人們稱呼這個以ARPAnet為主幹網的網際互聯網為Internet，TCP/IP協議簇便在Internet中進行研究，試驗，並改進成為使用方便，效率極好的協議簇。
與此同時，區域網和其它廣域網的產生和蓬勃發展對Internet的進一步發展起了重要的作用。其中，最為引人注目的就是美國國家科學基金會NSF(National Science Foundation)建立的美國國家科學基金網NSFnet，1986年，NSF建立起了六大超級計算機中心，為了使全國的科學家、工程師能夠共享這些超級計算機設施，NSF建立了自己的基於TCP/IP協議簇的計算機網路NSFnet。NSF在全國建立了按地區劃分的計算機廣域網，並將這些地區網路和超級計算中心相聯，最後將各超級計算中心互聯起來。地區網的構成一般是由一批在地理上局限於某一地域，在管理上隸屬於某一機構或在經濟上有共同利益的用戶的計算機互聯而成，連接各地區網上主通信結點計算機的高速數據專線構成了NSFnet的主幹網，這樣，當一個用戶的計算機與某一地區相聯以後，它除了可以使用任一超級計算中心的設施，可以同網上任一用戶通信，還可以獲得網路提供的大量信息和數據。這一成功使得NSFnet於1990年6月徹底取代了ARPAnet而成為Internet的主幹網。
NSFnet對Internet的最大貢獻是使Internet向全社會開放，而不象以前那樣僅僅借計算機研究人員、政府職員和政府承包商使用。然而，隨著網上通信量的迅猛增長，NSF不得不採用更新的網路技術來適應發展的需要。1990年9月，由Merit、IBM和MCI公司聯合建立了一個非贏利性的組織——先進網路和科學公司ANS(Advanced Network&Science,Inc)。ANS的目的是建立一個全美范圍的T3級主幹網，它能以45Mb/s的速率傳送數據，相當於每秒傳送1400頁文本信息。到1991年底，NSFnet的全部主幹網都已同ANS提供的T3級主幹網相通。
1969年12月，當ARPAnet最初建成時只有四個結點，到1972年3月也僅僅只有23個結點，直到1977年3月總共只有111個結點。但是近十年來，隨著社會科技，文化和經濟的發展，特別是計算機網路技術和通信技術的大發展，隨著人類社會從工業社會向信息社會過渡的趨勢越來越明顯，人們對信息的意識，對開發和使用信息資源的重視越來越加強，這些都強烈刺激了ARPAnet和以後發展成的NSFnet的發展，使聯入這兩個網路的主機和用戶數目急劇增加，1988年，由NSFnet連接的計算機數就猛增到56000台，此後每年更以2到3倍的驚人速度向前發展，1994年，Internet上的主機數目達到了320萬台，連接了世界上的35000個計算機網路。現在，Internet上已經擁有5000多萬個用戶，每月仍以10－15％的數目向前增長，專家預測，到1998年，Internet 上的用戶將突破1億，到2000年，全世界將有100多萬個網路，1億台主機和超過10億的用戶。今天的Internet已不再是計算機人員和軍事部門進行科研的領域，而是變成了一個開發和使用信息資源的覆蓋全球的信息海洋。在Internet 上，按從事的業務分類包括了廣告公司，航空公司，農業生產公司，藝術，導航設備，書店，化工，通信，計算機，咨詢，娛樂，財貿，各類商店，旅館等等100多類，覆蓋了社會生活的方方面面，構成了一個信息社會的縮影。
1995年，Internet開始大規模應用在商業領域。當年，美國Internet業務的總營收額為10億美元，預計1996年將會達到18億美元。提供聯機服務的供應商也從原先象America Online和ProdigyService這樣的計算機公司發展到象AT&T、MCI、Pacific Bell等通信運營公司也參加進來。
由於商業應用產生的巨大需求，從數據機到諸如 Web伺服器和瀏覽器的Internet 應用市場都分外紅火。
在Internet蓬勃發展的同時，其本身隨著用戶的需求的轉移也發生著產品結構上的變化。1994年，所有的Internet軟體幾乎全是TCP/IP協議保，那時人們需要的是能兼容TCP/IP協議的網路體系結構；如今Internet重心已轉向具體的應用，象利用WWW來做廣告或進行聯機貿易。Web是Internet上增長最快的應用，其用戶已從1994年的不到400萬激增至1995年的1000萬。Web站的數目1995年到三萬個。
● Internet的規模
Internet已成為目前規模最大的國際性計算機網路。今天，Internet已連接60,000多個網路，正式連接86個國家，電子信箱能通達150多個國家，有480多萬台主機通過它連接在一起，用戶有2500多萬，每天的信息流量達到萬億比特(terrabyte)以上，每月的電子信件突破10億封。
同時，Internet的應用業滲透到了各個領域，從學術研究到股票交易、從學校教育到娛樂游戲、從聯機信息檢索到在線居家購物等，都有長足的進步。據統計，目前在Internet的域名分布中，.com--即商業所佔比例最大，為41％；.e--（科教）已退居二線，佔有30％分額。去年在Internet的成長中，商企界的成長佔了其中的75％。
● Internet的未來
從目前的情況來看，Internet市場仍具有巨大的發展潛力，未來其應用將涵蓋從辦公室共享信息到市場營銷、服務等廣泛領域。另外，Internet帶來的電子貿易正改變著現今商業活動的傳統模式，其提供的方便而廣泛的互連必將對未來社會生活的各個方面帶來影響。
然而Internet也有其固有的缺點，入網路無整體規劃和設計，網路拓補結構不清晰以及容錯及可靠性能的缺乏，而這些對於商業領域的不少應用是至關重要的。安全性問題是困擾Internet用戶發展的另一主要因素。雖然現在已有不少的方案和協議來確保Internet網上的聯機商業交易的可靠進行，但真正適用並將主宰市場的技術和產品目前尚不明確。另外，Internet是一個無中心的網路。所有這些問題都在一定程度上阻礙了Internet的發展，只有解決了這些問題，Internet才能更好的發展。