题目内容：

Write sentences using the information below.
• Trojans / not viruses/ similar
• A Trojan / program / installs itself/ opens a door/ your computer
• Viruses / attack your computer/ back door
• Trojan / not bad at first
• Stop trojans / updated anti-virus software

优质解答

• Trojans are not viruses,but they are similar
• A Trojan program installs itself and opens a door to your computer
• Viruses will attack your computer through the back door
• Trojan is not bad at first
• The way to top trojans is to use an updated anti-virus software