In most towns today, you can see teenagers standing over electronic machines with flashing

In most towns today, you can see teenagers standing over electronic machines with flashing lights, shooting at spaceships from other planets and dropping bombs on strange monsters（恶魔）.The machines have names like Space Warrior, Dark Invader and so on. It used to be believed that damage was done only to those strange visitors from outer space, but now it seems that they are striking back.

Many teenagers like electronic games so much that they can't stop playing. They spend hours tightly holding the joystick controls and constantly pressing buttons marked “fire”.They develop pains on their fingers because of the constant pressure. They play and play so that the pains have no chance to cure properly. The rapid wrist movement required to guide the spaceship across the screen causes another problem: The muscles of the wrist and arm become so inflamed and swollen(充血红肿)that they press against the bones. This condition is what doctors now call “Space Warriar's Wrist”.Other strange aches and pains also are likely to affect（影响）the elbows and shoulders.

Another even more alarming problem is shown by the case of a 17-year-old girl which was recently in the British Medical Journal. She had been playing all kinds of electronic games for more than two hours a day. Her father repaired games and machines and she could use the cassettes and systems in his workshop as often as she liked. One day, after playing a game called Dark Invader, she lost consciousness(晕倒)and fell to the floor.

Doctors who examined her found she was suffering from an unusual illness caused by lights flashing at a particular frequency.

“Space Warrior's Wrist”is caused by_______.

A. constantly pressing the buttons

B. rapidly moving across the screen 

C. tightly holding the joystick controls

D. inflamed and swollen muscles of the wrist

The case of a 17-year-old girl by the writer shows that the writer_______.

A. supports playing electronic games

B. feels very sorry for the girl

C. disagrees with young people's playing electronic games

D. feels worried about young people's poor health

From the passage we can conclude that playing electronic games is _______.

A. enjoyable and helpful to the study

B. exciting but harmful to the health and study 

C. interesting but harmless to the eyes

D. amusing and satisfying

【小题1】A

【小题2】C

【小题3】B

【小题1】根据文章中的“They develop pains on their fingers because of the constant pressure.”及其上一句可知答案应为A项。

【小题2】　从文章的字里行间可以看出作者的态度。作者列出玩电子游戏的种种危害,实际上就表明了自己的态度。不赞同青少年玩电子游戏。

【小题3】　从青少年对电子游戏的痴迷上可看出电子游戏是exciting的。但从作者所列举的种种危害来看,游戏对他们的健康和学习是有危害的。所以应选B项。