Passage Two
Too much eating. Too many unhealthy foods. Too many advertisements for food. Too little activity.
Different explanations are offered for America’s weight problem--a problem increasingly shared by other countries. Almost one-fifth of American children and teenagers are overweight.
Schools have been urged to increase physical education, an important tool for public health. And many have. Yet now comes a study showing an increase in the number of injuries in physical education class. Injuries increased 150% between 1997 and 2007.
he study involved injuries treated in hospital emergency departments. Only 2% were serious. The researchers did not try to identify the causes of the increase, but they have some theories.
Lara McKenzie from Ohio State University was the lead researcher. She says one possibility is a decrease in the number of school nurses during the period they studied. For example, a 2004 study sho
A. not common outside the United States of America
B. also a headache in other countries
C. caused by too many advertisements for food
D. neglected in many countries
These days, everyone talks about being too busy. But all this busyness does not seem to result in things getting done. Just as many tasks are still left uncompleted, phone calls unreturned, and appointments missed as there were in the days before this outbreak of busyness. Therefore, people must not be as busy as they claim.
Which one of the following, if true, would most seriously weaken the conclusion in the passage()
Placing a human being behind the wheel
of an automobile often has the same curious effect as cutting certain fibers in
the brain. The result in either case is more primitive behavior. Hostile feelings are apt to be expressed in an aggressive way. The same man who will step aside for a stranger at a doorway will, when behind the wheel, risk an accident trying to beat another motorist through an intersection. The importance of emotional factors in automobile accidents is gaining recognition. Doctors and other scientists have concluded that the highway death toll resembles a disease epidemic and should be investigated as such. Dr. Ross A. Mcfarland, Associate Professor of Industrial Hygiene at the Harvard University School of Public Health, said that accidents "now constitute a greater threat to the safety of large segmen A. Motor vehicle registration will cause an increase in accidents in the future. B. Unless the accident rate is decreased, ten per cent of the American population will be killed or injured in motor accidents in the next 15 years. C. There is no hope that the accident rate will decrease during the next 15 years. D. Unless the accident rate decreases during the next 15 years, fifty per cent of the population will be killed. 我来回答: 提交
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