阅读理解 Few people would question the value of taking part in sports for young people.With proper training,supervision,protective equipment and techniques,and a proper emphasis on winning,sports can develop a healthy body and spirit and a lifelong interest in being active and fit.Without such measures,childhood sports can lead to injuries and even paralysis or death. Even in the best conditions,no activity can be riskfree.But most serious hazards are prable.Cyclists and football players can reduce their risks by wearing helmets; hockey players by wearing masks; basketball and tennis players by wearing eye guards; baseball players by wearing batting helmets. Besides,risks to individual players can often be found,and thus pred,through a properly performed medical exam before a child plays.For accidents that may not be prable,having an emergency plan and firstaid equipment,and someone trained to use the equipment,can be lifesaving. Still,each year,according to the American College of Sports Medicine,more than 775,000 children under 14 are treated in emergency rooms for sports injuries,nearly half of them prable.An estimated 300,000 athletes experience exerciserelated head illnesses each year,and almost all of them should have been avoided. Further,from half to threefourths of sportsrelated concussions(脑震荡) are never even diagnosed; the injured are often sent back to play too soon and put at risk of another more serious braindamaging concussion.To help reduce these risks,the National Center for Sports Safety,with the National Athletic Trainers'Association,offers a threehour online safety course for coaches for $28 at www.SportsSafety.org.1. Which of the following is true according to the passage?A. All the accidents can be pred.B. All the accidents cannot be pred.C. Lives can be saved so long as there is proper equipment.D. Lives cannot be saved even if there is proper equipment.2. What does the underlined word "hazards" (in Paragraph 2) mean?A. Mistakes. B. Diseases. C. ers. D. Situations.3. It is implied in the passage that________.A. prion of injuries is not paid enough attention toB. children under 14 are more easily hurt in sportsC. most head illnesses are related with exerciseD. none of the head illnesses should have happened4. What can coaches mainly learn from the online safety course?A. How to cure braindamaging concussion.B. How to diagnose braindamaging concussion.C. How to predict the possibility of brain damage.D. How to deal with the injured properly.