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On February 14th，2000，my class went on a field trip to the beach. I had so much fun. When we returned to school，my teacher told me to go to the headmaster‘s office. When I got into the office，I saw a police officer. Suddenly I realized something was wrong. The police officer told me what had happened and we went to pick my sister up. After that，we went to the hospital and waited. Time went slowly. Finally，we got to see our mother. It was terrible.

On the next day，the headmaster came and told my two teachers what had happened. I was taking a rest that day. I knew it had something to do with my mother. I kept thinking that she either died or had gotten better. How I wished that she had gotten better. When my teacher took me outside，my sister ran up to me. She started crying，“She‘s gone. Teresa，mommy’s gone.

She‘s dead.” I couldn’t believe it. We jumped into the car and drove straight to the hospital. Most of my family were there. The silence was terrible. I knew I had to say goodbye.

Today when I look back，I still miss my mother very much，but I know that I will live. My mother was a strong mother，who had the biggest heart. My mother was an angel walking on the earth. I will always remember her as living. When someone is asked who their hero （英雄） is，they usually say someone famous，like Michael Jordan or Britney Spears. When someone asks me who my hero is，I tell them，my mother. My mother lives every day. That is what makes her a true hero.

1.Where was the writer when she learned her mother was very ill？

A. On the beach.       B. At the hospital.   C. At school.         D. At home.

2.Who brought the writer the bad news that her mother was ill？

A. Her sister.       B. The headmaster.  C. Her teacher.           D. The police officer.

3.What did the headmaster tell the two teachers on the next day？

A. Her mother had been very ill.   B. Her mother had been dead.

C. Her mother had gotten better.   D. Her sister came to see her.

4.From the last paragraph of the passage we know that _______.

A. the writer is afraid of her mother      

B. the writer is proud of her mother

C. the writer feels sad about her mother   

D. the writer feels sorry for her mother

5.The writer must think her mother is a _______ woman.

A. famous            B. free      C. rich                  D. great

Every year when the Italian artist Michelangelo’s (1475－1564) birthday comes around, computer users all over the world are filled with fear（恐懼） and use their computers with care. Some may even choose not to turn on their computers on March 3rd. All this fear and care are just because a deadly computer virus is expected to cause damages（傷害）on that day.

What’s a computer virus then? Why do people get so afraid of it?

A computer virus is, in fact, a little program that is put into other programs and that does something bad. It is called a virus because, like any real life viruses such as AIDS virus, it reproduces (繁殖) itself. And when these programs are run, the virus is brought to life. It hides itself in your computer system waiting for the right moment to make damages. And at the same time it keeps producing itself by copying itself onto other programs.

The Michelangelo virus waits until the artist’s birthday comes around, and then it will wake up to do very bad things like destroying you files.（文件）So next time when you turn on your computer, look out for computer viruses!

51. A computer virus is a kind of 　　　　　 .

A. famous person’s birthday B. deadly disease

C. unsafe game　　　　　　　　　　 D. dangerous program

52. Computer users fear viruses because 　　　　　

A. they can bring users bad luck　　　　　 B. they can cause damages to the users

C. they may do great harm to computers　 D. they can change the programs in all computers

53. It seemed that 　　　　 .

A. a computer virus will appear each time you turn on your computer

B. a computer virus is given to the computer by an Italian artist

C. a computer virus will appear at the right time

D. a computer virus can never be got rid of by human beings

54. From the passage we know 　　　　　　 .

A. many people fear computers because of the viruses

B. a computer virus is just the same as a real life virus.

C. Michelangelo was born on March 3^rd

D. the artist Michelangelo was a bad person

55. In the last paragraph, the writer suggests that we should 　　　　　

A. look for computer viruses　　　　 B. wait for the artist’s birthday to come

C. be careful of computer viruses　　 D. not turn on our computers