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精英家教網 > 初中英語 > 題目詳情

  E-mail is one of the biggest threats(威脅)to your home computer.By understanding how E-mail works, and by taking some steps in how you deal with reading and writing messages, you can keep this threat out of your computer.When you exchange E-mail with someone else, the messages sent between you and that person pass through several computers before they reach their places.Imagine this conversation as it is taking place in an Internet“room”, a very, very big room.Anyone, or more exactly, any program can probably understand what is being said, because most Internet conversations are not hidden(隱藏)in any way.As a result, others may be listening in, capturing what you send, and using it for their own good.

  E-mail-borne viruses(病毒)often arrive in attractive, fantastic appearances, much like the beautiful ads we receive by way of traditional mail that is made to sell us something.By beautiful appearances, an infected(感染)E-mail message seems to be something we want to read from someone we know, not a mean virus ready to destroy or damage our computers.

  There are some steps that you can take to help you decide what to do with every E-mail message with an attachment(附件)that you receive.You should only read a message that passes all of these tests:

  1)The Know Test:Is the E-mail from someone that you know?

  2)The Received Test:Have you received E-mail from this sender before?

  3)The Expect Test:Were you waiting for E-mail with an attachment from this sender?

  4)The Meaning Test:Do the topic line of the E-mail massage and the name of the attachment both have meanings?

  5)The Virus Test:Is the E-mail infected?

(1)

Which of the following is the main idea of the first paragraph?

[  ]

A.

We should not exchange our E-mail with someone else.

B.

It is dangerous to read and write E-mail message sat home.

C.

We should learn how E-mail works to take care of our computers.

D.

Our chats on computers are usually going on in a big Internet room.

(2)

What does the underlined word“capturing”probably mean?

[  ]

A.

taking

B.

hiding

C.

receiving

D.

destroying

(3)

As the Internet is open to anyone, we should ________.

[  ]

A.

not read and write messages in our home computers

B.

not allow nice advertisements to reach our computers

C.

stop our conversations while someone is listening in it

D.

be careful with the attractive E-mails sent by strangers

(4)

What is the passage mainly talking about?

[  ]

A.

The threats of E-mail.

B.

The safety of home computers.

C.

The E-mail-borne viruses.

D.

The steps to receive E-mail messages.

答案:1.C;2.A;3.D;4.B;
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  We are all busy talking about and using the Internet(互聯網), but how many of us know the h  1   of the Internet?

  Many people are surprised when they find that the I  2   was set up in the 1960s.At that time, computers were large and e  3  .Computer networks(網絡)didn't work well.If one computer in the network broke down, then the whole network stopped.So a new network system had to be set up.It should be good e  4   to be used by many different computers.If part of the network was not working, information could be sent through a  5   part.In this way computer network system would keep on w  6   all the time.

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科目:初中英語 來源:江蘇省姜堰市2012屆九年級上學期期中考試英語試題 題型:054

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  Miss Li told my parents:“Feng Yu is doing pretty well.But because of his   11   he lost 3 points in math.  12  , he would be the top of the school.”

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