填空题 .How to protect your computer from being attacked by a virus?
    First, be sure to have a good antivirus program and update it regularly. You will also want to make sure that your Internet browser and operating system have had all the necessary security patches(补丁) applied.
    Then, you may think you have a virus, but how do you really tell? You scan your system for viruses with a software program. If you don't have antivirus software, you can purchase it online or you can use Panda Software's free Active Scan that will scan your computer and report on any infections.
    If the virus scan finds an infection, it will give you the name of the virus or viruses that you have contracted. If your computer is infected, you need to take immediate action. If the severity of the virus is very high, your computer may be at risk. Look up the virus at one of the antivirus manufacturers' websites. This will help you further protect your computer.

填空题 1.  What is necessary for protecting your computer from a virus?
    A good ______ and security patches of the Internet browser and operating system.

填空题 2.  How do you know if your computer is infected?
    You can ______ of your computer for viruses with a software program.

填空题 3.  What can you do if you don't have antivirus software in your computer?
    You can ______ or you can use Panda Software's free Active Scan.

填空题 4.  What will you get after virus scanning if there is an infection?
    You will get the ______ of the virus or viruses that you have contracted.

填空题 5.  What will happen if your computer is infected by a severe virus?
    Your computer may be ______.