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    Always forgetting your long passwords(密码)? Worried about being hacked(被攻击)?All these worries will soon become history. Scientists have found that upper-casing(大写)your password can help you reduce the chance being hacked.
    Usually passwords are six letters or more.However,50 percent of people choose a common word or simple key combination for their password. The most used passwords are 123456, abcdef and abc123. In fact, if your passwords are in lower-case(小写),it will be easily hacked by a hacker. According to a study, it only takes a hacker ten minutes to hack a six-letter password which is in lower-case, but if you make the letter in upper-case, it can take up to ten hours. So if you want to make your account much safer, you should make your password upper-case. Of course, you can also add numbers or symbols to your password. Most of the time a hacker’s computer has to work for 18 days to break a password, but if you choose a nine-letter password that includes numbers and symbols, it can take a hacher’s  computer 44,530 years to break it.
    小题1:Scientists have found that   your password is much safer for  
    your account.
    A．upper-casingB．lower-casing
    C．reducingD．copying
    小题2:According to the passage,______is not one of the most used
    passwords.
    A．123456B．abcdefC．abc123D．000000
    小题3:It takes a hacker___to hack a six-letter password which is in
    lower—case.
    A．10 minutesB．10 hours
    C．18 daysD．44,530 years
    小题4:The Chinese meaning of the underlined word is       
    A.数字     B.符号      C.色彩       调料
    小题5:What is the main idea of the passage?
    A．What passwords are.
    B．How a password is hacked.
    C．How to make your password much safer.
    D．Why hackers hack your password.

    小题1:A
    小题2:D
    小题3:A
    小题4:B
    小题5:C

    小题1:细节理解题，根据文中语句“Scientists have found that upper-casing(大写)your password can help you reduce the chance being hacked.”理解可知。
    小题2:细节理解题，根据文中语句“However,50 percent of people choose a common word or simple key combination for their password.The most used passwords are 123456, abcdef and abc123.”理解可知。
    小题3:细节理解题，根据文中语句“but if you make the letter in upper-case,it can take up to ten hours.”理解可知。
    小题4:词义理解题，根据文中语句“Of course, you can also add numbers or symbols to your password. Most of the time a hacker’s computer has to work for 18 days to break a password, but if you choose a nine-letter password that includes numbers and symbols, it can take a hacher’s  computer 44,530 years to break it.
    ”理解可知。
    小题5:理解归纳题，根据文中语句理解可知。
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