Comparisons were drawn between the development of television in the 20^th century and the spread of printing in the 15th and 16th centuries. Yet much had happened __47__. As was discussed before, it was not until the 19th century that the newspaper became the dominant pre-electronic medium, following in the wake of the pamphlet and the book and in the __48__ of the periodical. It was during the same time that the communications revolution __49__ up, beginning with transport, the railway, and leading on through the telegraph, the telephone, radio, and motion pictures into the 20th-century world of the motor car and the airplane. Not everyone sees that process in perspective. It is important to do so. It is generally recognized, however, that the __50__ of the computer in the early 20th century, followed by the invention of the integrated circuit during the 1960s, radically changed the process, although its impact on the media was not immediately __51__. As time went by, computers became smaller and more powerful, and they became “personal” too, as well as __52__, with display becoming sharper and storage capacity increasing. It was within the computer age that the term “information society” began to be widely used to describe the __53__ within which we now live. The communications revolution has __54__ both work and leisure and how we think and feel both about place and time, but there have been controversial views about its economic, political, social and cultural implications. “Benefits” have been weighed __55__ “harmful” outcomes. And generalizations have proved difficult.

A computer virus is a program or piece of code that is loaded onto your computer without your knowledge and runs against your wishes. All computer viruses are manmade. Here are some virus prevention tips.

Do not open any files attached to an e-mail from an unknown, suspicious or untrustworthy source.

Do not open any files attached to an e-mail unless you know what it is, even if it appears to come from a dear friend or someone you know. Some viruses can replicate（复制） themselves and spread through e-mail. Better be safe that sorry and confirm that they really sent it .

Do not open any files attached to an e-mail if the subject line is questionable or unexpected. If the need to do so is there always save the file to your hard drive before doing so.

Delete chain e-mails and junk e-mail. Do not forward（转寄） or reply to any of them. These types of e-mail are considered spam（垃圾邮件）, which contains lots of annoying advertisements and useless information.

Do not download any files from strangers.

Be careful when downloading files from the Internet. Ensure that the source is a legitimate（合法的）and reputable one. Verify（证实）that an anti-virus program checks the files on the download site. If you are uncertain, don’t download the file at all or download the file to a floppy（软盘）and test it with your own anti-virus software.

Update your anti-virus software regularly. Over 500 viruses are discovered each month, so you’ll want to be protected. These updates should be at least the products virus signature files. You may also need to update the product’s scanning engine as well.

   Back up（备份） your files on a regular basis. If a virus destroys your files, at least you can replace them with your backup copy. You should store your backup copy in a separate location from your work files, one that is preferably not on your computer.

This passage mainly tells us              .

A. What a computer virus is

B. how to use e-mail safely

C. how to use computers safely

D. how to prevent computer viruses

Which of the following statements about computer virus is TRUE?

A. A computer virus is a kind of worm

B. Not all computer viruses are manmade

C. Computer viruses run according to our wishes

D. A computer virus is a program or piece of code.

When we use e-mail, we should                .

A. open all the files we receive

B. open any file even if we don’t know what it is

C. not open any files if the subject line is questionable

D. forward or reply to junk e-mail.

Which of the following statements is NOT true?

A. We’d better not down load any files from strangers.

B. We’d better download files from a legitimate and reputable source.

C. We should update our anti-virus software regularly.

D. We should store our backup copy in the same location as our work files.

A young executive was traveling down a neighborhood street．He was watching for kids rushing out from between parked cars and slowed down when he thought he saw something．As his car passed，no children appeared．Instead，a brick smashed into his door! He slammed on the brakes(make his car stop)．The angry driver then jumped out of the car, caught the nearest kid and pushed him up against a parked car，shouting，“What was that all about and who are you?”

The young boy was apologetic．“Please，Mister．．．Please，I’m sorry…I didn’t know what else to do．I threw the brick because no one else would stop…”

With tears dripping down his face，the youth pointed to a spot just around a parked car．“It’s my brother，”he said．“He fell out of his wheelchair and I can’t lift him up．”

    Now sobbing(crying silently)，the boy asked the executive，“Would you please help me get him back into his wheelchair? He’s hurt and he’s too heavy for me．’’

   Moved beyond words，the driver tried to swallow the rapidly swelling lump in his throat．He hurriedly lifted the boy back into the wheelchair，then took out his fancy handkerchief and dabbed(a light touch) at the fresh scrapes and cuts．A quick look told him everything was going to be okay．“Thank you and may God bless you．”the grateful child told the stranger．

Shaken up for words，the man simply watched the little boy push his wheelchair—bound brother down the sidewalk toward their home．

   God whispers in our souls and speaks to our hearts．Sometimes when we don’t have time to listen，he has to throw a brick at us．Don’t go through life so fast that someone has to throw a brick at you to get your attention!

The executive slowed down because______.        .

A．he saw a boy throw a brick to his car         B．he saw a boy rush out from between cars

C．he was afraid some boys suddenly rushed out  D．a brick smashed into his door

The boy threw the brick to the car in order to_________.

A. disturb the driver on purpose    B．destroy the car of the stranger

C．ask someone to drive him home D．stop someone to help him

Knowing the reason why the boy threw the brick at his car the executive must feel       .

A．sympathized and excited   B．regretful and sympathized

C．ashamed and regretful     D．angry and regretful

After the boy’s brother feIl off his wheelchair,        .

A．the boy threw bricks at several cars  B．the boy tried to stop several cars

C．the boy’s brother was hurt seriously  D．the boy’s brother wanted to stop a car

From the last paragraph we can learn that         .

A．you shouldn’t drive so fast that someone throws at you

B．it is common to throw a brick at a car running too fast

C．you can’t go through your life without a brick throwing at you

D．you should pay more attention to others and help them

B
London: It's well known that Charles Darwin's famous theory of evolution (进化) annoyed many people because it was against the Biblical view of creation. But few know that it also created problems for Darwin at home with his deeply religious wife, Emma.
"Darwin held back the publication of On the Origin of Species to avoid offending (触怒) his wife," says Ruth Padel, the naturalist's great－great－granddaughter. "Emma told him that he seemed to be putting God further and further off", Padel says in her north London home. "But they talked it through, and Emma once said, ‘Don’t change any of your ideas for fear of hurting, me.’ ”
As the world celebrates the 200th birthday of the man who changed scientific thought forever and the 150th anniversary of his book today, even his opponents admitted he was a giant figure.
Though opposition to his theory, continues, it is the elegant explanation of how species evolutes through natural selection that makes his 200th birthday such a major event.
More than 300 celebrations have been planned in Britain alone, where Darwin's face graces (使增光) the 10－pound bill along with that of Queen Elizabeth II.
Shrewsbury, the central England town where Darwin was born and raised, is holding a month-long festival for its most famous son. Down House, his former home near London, will hold a permanent exhibition recreating some of his most famous experiments.
Many more events have been planned all over the world.
What would he be doing if he were alive today? Padel thinks he would properly be studying DNA and the immune system.
45．The main purpose of the author is______.
A．to say something about Darwin and his wife
B．to introduce Charles Darwin and his theory of evolution
C．to sing high praise for the book On the Origin of Species
D．to report some celebrations of Darwin's 200th birthday and the 150th anniversary of his books
46．Which of the statements is NOT true based on the passage?
A．Everyone agrees with Darwin now.
B．Darwin was brought up in Shrewsbury.
C．Emma was not really fond of his theory.
D．Darwin was very interested in living things.
47．The underlined phrase "held back" in the second paragraph probably means______.
A．prevented from                                                         B．kept a secret
C．cared about                                                                 D．put off
48．It can be inferred that the passage is most probably______.
A．a scientific report                                                     B．a news report
C．an English composition                                           D．a text