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2017届高考英语二轮专题训练：阅读理解（28） A There are some new drivers going back to school. Teens who have recently gotten their driver's licenses may be taking the wheel to drive to school this fall. However, parents fear when their teen starts driving. And it turns out that such parental fears are justified—so it's worth reviewing how to keep your teen safe while he or she is behind the wheel. Motor vehicle crashes are the leading cause of death in U. S. teens. Drivers 16 to 19 years old are at the greatest risk for crashes. In fact, their risk is 4 times greater than for older drivers. The teens at the greatest risk are those who are male, those carrying other teenage passengers in the car, and those still in their first year of driving. Nearly 50 percent of teen deaths related to automobile crashes happen on Fridays ’ Saturdays ’ or Sundays between the hours of 3 p. m. and midnight. Why are teens at higher risk for motor vehicle crashes? Development. Teens haven’t completely matured mentally and have greater risk-taking behaviors, possibly because they tend to underestimate the risk associated with a particular behavior. Teens also have a greater tendency to speed and to drive too close to the cars in front of them. No seatbelts. Teens have the lowest rate of seatbelt use among all driving groups. Alcohol. At least 25 percent of motor vehicle deaths in teens are related to alcohol use. | 
