阅读理解。
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 (红肿) that they press against
the bones. This condition is what doctors now call "Space Warrior's Wrist". Other strange aches and pains
also are likely to affect 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 various 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.
1. Electronic games are found very popular with __________.
A. people living in towns
B. students studying in high schools
C. girls working in their father's workshops
D. young people age about 15-20
2. "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
3. 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. disagreed with young people's playing electronic games
D. feels worried about young people's poor health
4. 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

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