“Multimedia” means that() .

Some multimedia companies predict that, in a few years' time, production of newspapers and magazines will have been halved, for we will he turning to our computers to get the latest news. To publishers, this means the arrival of the e-book.

But is this the end of the book and the newspaper？ I doubt it. I do not think anything can replace the book. This is partly because, although some people believe that technology is capable of anything, it isn't yet! To begin with, the Internet is slow. Even though work is constantly being carried out to solve this problem, demand for the Internet is increasing too fast for scientists to keep up. What is more, it takes much longer for us to read on the computer. Research shows that we read 50% more quickly on paper than on a computer screen.

In addition, it seems that we like the feel of books and magazines-we like to put them in our bags or pockets and take them out on the bus or the train on the way to work. We like to sit and read in the park or on the beach. For many of us, the idea of Sunday morning without a cup of coffee and some newspapers is unimaginable.

We like to decorate our rooms with them, too .How many of us would exchange what we have now-a row of books in a bookcase, or a pile of magazines on the coffee table-for a row of little screens？

Nevertheless, by the time e-books have become as widely available as printed ones, it is likely that at least some of us will have changed our minds.

21 .According to some multimedia companies, production of newspapers and magazines .

A. will be reduced by half

B .has been reduced by half

C .will be increased by 50%

D .has been increased by 50%

22.According to the passage, people read .

A. as quickly on paper as on the computer

B .half as quickly on paper as on the computer

C .50% more quickly on the computer than on paper

D .50% more quickly on paper than on the computer

23 .The third paragraph is mainly related to .

A. technical problems

B.reading habits

C.functions of books

D.prices of books

24.How many reasons does the passage provide for books as against e-books？

A.2

B.3

C.4

D.5

25 .Judging by the passage, the author .

A.prefers books to e-books

B. likes e-books better than books

C. loves both books and e-books

D.welcomes the arrival of e-books

peaking, multimedia may be viewed as applications that operate within a media-rich, digital environment on the desktop, over local networks via telecommunications. As a result, the term “multimedia” takes on vastly different meanings to different groups of people. The real value of the term is that it serves as a common vision for the direction of new visual communication opportunities and markets-a vision where the barriers to communication and self-expression in media have been removed.

(1).From the first paragraph we may conclude that multimedia are ().

A.desktop computers

B.applications

C.telecommunications over LAN

D.digital environment

(2).What kind of barrier do we have before the advent of multimedia ()？

A.Expression barrier

B.Difference in definition

C.Market barrier

D.Difficulties in VOD

(3).Which of the following can’t be interpreted as multimedia()？

A.Media-rich, digital storage

B.High degree of data structure

C.High level of interactivity

D.Passive communications

(4).The author tends to think VOD movies as ().

A.multimedia application

B.delivery of sequential information

C.our definition of multimedia

D.parallel communications

(5).The best title of passage is ().

A.The Uses of Multimedia

B.Broadband Multimedia Communication

C.What Multimedia Are Like

D.Multimedia Services

WWW is popular for its multimedia transmission and friendly(71). Although the speed of network has been improved considerably in recent years, the rapid(72)of using the Internet, the inherited character of delay in the network and the Request/Response working mode of WWW still make the Internet traffic very(73)and give no guarantee on the Quality of Service. Because HTTP has no states, the web server cannot know the users' demand and the users' requests cannot be predicted Taking advantage of a cache mechanism and the time locality of WWW accesses, the browser can preserve the documents ever accessed in the local machine. By this means, for the documents in the local cache, the browser does not need to send the requests to the remote server or to receive the whole responses from the remote one Pre-fetching uses the space locality of accesses First, the users' access requests are predicted according to the users' current request. Secondly, the expected pages are fetched into the local cache when the user is brow sing the current page. Finally, the users can access these pages downloaded from the local cache. And this can reduce the access delay to some degrees. Pre-fetching is one kind of active caches that can cache the pages which are still not requested by the user. The application of pre-fetching technology in the web can greatly reduce the waiting time after users have sent their requests. This paper brings forward an intelligent technique of web pre-fetching, which can speed up fetching web pages. In this technique, we use a simplified WWW data model to represent the data in the cache of web browser to mine the association rules. We store these rules in a knowledge base so as to(74)the user's actions. In the client sides, the agents are responsible for mining the users' interest and pre-fetching the web pages, which are based on the interest association repository. Therefore it is(75)for the users to speed up the browsing.

A．interactive

B．interaction

C．interactivity

D．infection

The sign “No Smoking”means “You ______ smoke here.”

A: mustn ’t

B: won’t

C: can’t

D: needn’t

.()

A.cares

B.indicates

C.wants

D.means

alue.It doesn't include the provision of services.()