1. (2019八上·温州开学考) 阅读理解

    Nowadays, computers and Internets are playing an important part in our life. Some people even say they can't live without them. We usually need to set passwords (密码) when we use computers and Internet. But not all the passwords are safe. In order to keep our accounts (账户)and personal information safe, we must learn how to make safe passwords.

    How can you make your computer and Internet passwords safe? Experts have some advice for you. You'd better remember the advice and they are useful for you. Here are the suggestions.

    Firstly, make your password out of capital(大写) letters. If your password is made of capital letters, it will be difficult for others to get into your account. It only takes a hacker(黑客) 10 minutes to work out a six- letter password made of small letters. But the same password in capital letters takes 10 hours to work out.

    Secondly, add numbers or symbols to your passwords. It may be much safer. Sometimes such password is not easy to remember, but it is really safe.

    Thirdly, never use personal information for passwords and use different passwords for different accounts. Experts say that a user should change his or her passwords every 90 days. In this way, hacker won't guess your passwords.

1. （1） The underlined word "them" refers to " ________ ".

   A . the passwords B . computers and Internet C . the capital letters D . the accounts
3. （2） If you set your password with six capital letters, a hacker may spend ______ working out.

   A . ten hours B . ten minutes C . one day D . a week
5. （3） You should change your passwords_________.

   A . Every 10 day B . every month C . Every two months D . Every there months
7. （4） According to the passage, which of the following is NOT a safe password?

   A . Liz287 B . LUCKY3 C . 891106 D . 432Ac％
9. （5） What's the best title for the passage?

   A . Computers and Internet B . Setting Personal Accounts C . Using Capital Letters D . Making Your Passwords Safe