●The Semantic Web is a web of dat a There is lots of data we all use every day，and its not part of the(1).I can see my bank statements on the web，and my photographs，and I can see my appoint. ments in a calendar.But can I see my photos in a calendar to see what l was doing when I took them 9. Can I see bank statement lines in a calendar?

　　Why not?Because we don’t have a web of dat a Because data is controlled by (2)，and each application keeps it to itself.

　　The Semantic Web is about two things.It is about common formats for interchange of(1 3)，where01 the original Web we only had interchange of documents.Also it is about language for recording how the data relates to real world(4).That allows a person，or a (5)，to start off in one database，and then move through an unending set of databases which are connected not by wires but by being about the same thing.

　　(1) A. life

　　B. WWW

　　C. page

　　D. web

　　(2) A. manager

　　B. applications

　　C. software

　　D. computer

　　(3) A. documents

　　B. pages

　　C. means

　　D. data

　　(4) A. objects

　　B. people

　　C. computers

　　D. instances

　　(5 )A. operator

　　B. administrator

　　C. machine

　　D. server

　　答案：(1)D (2)B (3)D (4)A (5)C

　　解析：語(yǔ)義web是一個(gè)數(shù)據(jù)組成的網(wǎng)絡(luò)。我們現(xiàn)在每天使用大量數(shù)據(jù)。它們并不是網(wǎng)絡(luò)的一部分。我可以在網(wǎng)上看我的銀行結(jié)單。還有我的照片。我可以在我的日歷上看到我的約會(huì)。但是我能在看日歷里的照片時(shí)看到我照相時(shí)在干什么嗎?我能在日歷中看到銀行授信額度嗎?

　　為什么不能?因?yàn)槲覀儾⒉皇菗碛幸粋�(gè)由數(shù)據(jù)組成的網(wǎng)絡(luò)。因?yàn)閿?shù)據(jù)是由應(yīng)用程序控制的，并且只為它自己維護(hù)數(shù)據(jù)。

　　語(yǔ)義web主要涉及了兩方面。它是交換數(shù)據(jù)的公共方式，在最初的網(wǎng)絡(luò)上我們只有交換文檔的方式。它也是一種語(yǔ)言。這個(gè)語(yǔ)言記錄了怎樣將數(shù)據(jù)與現(xiàn)實(shí)世界對(duì)象相聯(lián)系。這樣就允許一個(gè)人或者一臺(tái)機(jī)器，從一個(gè)數(shù)據(jù)庫(kù)開始，在一系列無(wú)盡的數(shù)據(jù)庫(kù)間移動(dòng)，而這些數(shù)據(jù)庫(kù)不是靠電線連接的。而是因?yàn)樗鼈兌际顷P(guān)于同一件事物的數(shù)據(jù)庫(kù)。