-
(单词翻译:双击或拖选)
Computers are great tools, but they can also be mystifying. Sometimes a program will just stop working correctly for no apparent reason. It could just be a random1 glitch2 that can be solved by restarting the machine. But sometimes the solution is not so simple, especially if at the root of the problem lurks3 a computer virus. A computer virus is a bit of programming code that gets passed from machine to machine by e-mail or the sharing of programs. Like a biological virus, on its own a computer virus can't do anything. But once it gets attached to something else, say a document or image attached to an e-mail message, it can wreak4 havoc5.
Once you open the infected object, two things can happen. The virus will reproduce itself to infect other documents and may damage the overall functioning of your computer. Depending on the type of virus, it can simply clog6 up memory or, even worse, erase7 data. If your computer is connected to the internet, viruses called worms may infect your machine, then use its connection to seek out and infect other computers.
Unlike natural viruses, computer viruses are created by people and unleashed8 with the intent of doing mischief9 or harm. If you find that your computer has been infected, run a virus detection program to find the virus and destroy it. The best way to protect your computer is to install virus protection software that's always alert and looking out for harmful intruders. Plus, never download a program from iffy Websites or open unsolicited e-mail attachments10. They may be harmless, but you never know when a virus might be attached and ready to pounce11.
点击收听单词发音
1 random | |
adj.随机的;任意的;n.偶然的(或随便的)行动 | |
参考例句: |
|
|
2 glitch | |
n.干扰;误操作,小故障 | |
参考例句: |
|
|
3 lurks | |
n.潜在,潜伏;(lurk的复数形式)vi.潜伏,埋伏(lurk的第三人称单数形式) | |
参考例句: |
|
|
4 wreak | |
v.发泄;报复 | |
参考例句: |
|
|
5 havoc | |
n.大破坏,浩劫,大混乱,大杂乱 | |
参考例句: |
|
|
6 clog | |
vt.塞满,阻塞;n.[常pl.]木屐 | |
参考例句: |
|
|
7 erase | |
v.擦掉;消除某事物的痕迹 | |
参考例句: |
|
|
8 unleashed | |
v.把(感情、力量等)释放出来,发泄( unleash的过去式和过去分词 ) | |
参考例句: |
|
|
9 mischief | |
n.损害,伤害,危害;恶作剧,捣蛋,胡闹 | |
参考例句: |
|
|
10 attachments | |
n.(用电子邮件发送的)附件( attachment的名词复数 );附着;连接;附属物 | |
参考例句: |
|
|
11 pounce | |
n.猛扑;v.猛扑,突然袭击,欣然同意 | |
参考例句: |
|
|