“Tom? Are you in bed yet?” called Mrs. White. There was no answer. Mrs. White put down her book and went to her 14-year-old son’s room. Tom was sitting in front of a right computer screen (屏幕) on which a colorful dragon (龙) jumped and shouted.

　　“Oh, Tom! You’re still playing on that computer. You must stop now, it’s half past eleven. If you don’t go to bed soon, you’ll be very tired tomorrow.” said Mrs. White.

　　“But I’ve nearly beaten the dragon.” said Tom. Mrs. White could see the excitement (激动) on her son’s face. She sat down beside him.

　　“You are always playing on that computer. You spend more time with this machine than with your family.” she said with a smile. “What’s so special (特别的) about it? Show me what it can do!”

　　Tom was very excited. “I think this is a great computer, Mum!” he said happily. “The hardware (硬件) is good. There’s so much memory (内存) and it has some wonderful software programmes. This game, Dragons player, is my favourite, but I sometimes borrow games from Danny and other friends. I don’t have to worry about any infected (被感染的) disks (磁盘) because I have a virus (病毒) detector (监测器) which can go over any disk and check it for viruses. Let me show you!” Tom began tapping (敲打) keys on the keyboard (键盘). The screen changed in answer to his orders (命令).

　　“Oh, Tom.” laughed Mrs. White. “I’m sure it’s a wonderful computer, but I’m afraid I don’t know what you’re talking about.”

(　 ) 16. When Mrs. White was calling Tom, he was _______.

A. lying in bed reading a book   B. on the computer with a dragon

C. standing in front of the screen of the computer

D. playing computer games in his bedroom

(　 ) 17.From the passage we know that the story happened _______.

A. before Tom went to school in the morning B. before Tom went to bed at night

C. just as the dragon jumped and shouted

D. after Tom had slept for some hours in the evening

(　 )18. Tom was very excited because _______.

A. he had a radio detector in his computer

B. he was worrying about the infected disks

C. he had nearly beaten the dragon in computer game

D. his mother came upstairs to ask him to go to bed

(　 )19.Which of the following is true according to the passage?

A. Tom liked playing computer games

B. Tom enjoyed playing with real dragons

C. Tom hated tapping on the keyboard

D. Tom hated teaching his mother how to play the computer

(　 ) 20.How did Tom get on with his mother?

A. Mrs. White was very hard on her son.

B. Mrs. White loved her son and took good care of him.

C. Tom didn’t want to talk about the computer with his mother.

D. Tom thought his mother was as wonderful as the computer game.

“Tom? Are you in bed yet?” called Mrs. White. There was no answer. Mrs. White put down her book and went to her 14-year-old son’s room. Tom was sitting in front of a right computer screen (屏幕) on which a colorful dragon (龙) jumped and shouted.

　　“Oh, Tom! You’re still playing on that computer. You must stop now, it’s half past eleven. If you don’t go to bed soon, you’ll be very tired tomorrow.” said Mrs. White.

　　“But I’ve nearly beaten the dragon.” said Tom. Mrs. White could see the excitement (激动) on her son’s face. She sat down beside him.

　　“You are always playing on that computer. You spend more time with this machine than with your family.” she said with a smile. “What’s so special (特别的) about it? Show me what it can do!”

　　Tom was very excited. “I think this is a great computer, Mum!” he said happily. “The hardware (硬件) is good. There’s so much memory (内存) and it has some wonderful software programmes. This game, Dragons player, is my favourite, but I sometimes borrow games from Danny and other friends. I don’t have to worry about any infected (被感染的) disks (磁盘) because I have a virus (病毒) detector (监测器) which can go over any disk and check it for viruses. Let me show you!” Tom began tapping (敲打) keys on the keyboard (键盘). The screen changed in answer to his orders (命令).

　　“Oh, Tom.” laughed Mrs. White. “I’m sure it’s a wonderful computer, but I’m afraid I don’t know what you’re talking about.”

(　 ) 16. When Mrs. White was calling Tom, he was _______.

A. lying in bed reading a book   B. on the computer with a dragon

C. standing in front of the screen of the computer

D. playing computer games in his bedroom

(　 ) 17.From the passage we know that the story happened _______.

A. before Tom went to school in the morning B. before Tom went to bed at night

C. just as the dragon jumped and shouted

D. after Tom had slept for some hours in the evening

(　 )18. Tom was very excited because _______.

A. he had a radio detector in his computer

B. he was worrying about the infected disks

C. he had nearly beaten the dragon in computer game

D. his mother came upstairs to ask him to go to bed

(　 )19.Which of the following is true according to the passage?

A. Tom liked playing computer games

B. Tom enjoyed playing with real dragons

C. Tom hated tapping on the keyboard

D. Tom hated teaching his mother how to play the computer

(　 ) 20.How did Tom get on with his mother?

A. Mrs. White was very hard on her son.

B. Mrs. White loved her son and took good care of him.

C. Tom didn’t want to talk about the computer with his mother.

D. Tom thought his mother was as wonderful as the computer game.

 If you feel tired, you must stop ______ a rest.

A. having                           B. to have                           C. have                      D. had