20．Car crashes are the top killer of American teenagers．Most of the crashes result from distracted driving-not paying attention to the road．
Ryan Didone was a fifteen-year-old passenger in a car that hit a tree．He was one of the nation's more than thirty thousand victims of traffic crashes in 2008．Nearly four thousand deaths，about twelve percent involved drivers age fifteen to twenty．
Ryan's father，Thomas Didone，is a police captain in Maryland．"It was an inexperienced，immature driver driving at night with a carload of kids．He was distracted，he was going too fast，and it ended up causing one death and some seriously injured．"He shares the story of his son's death to help educate teens and their families about distracted driving．
Jim Jennings from the Allstate Insurance Company says the number one cause of distracted-driving accidents is the mobile phone．He says talking on the phone or reaching for it is like drinking four beers and driving．"If you're texting while driving，you are twenty-three times more likely to get into an accident than somebody who isn't．"
Government and private groups are using public service announcements and events to bring more attention to the problem．For example，the insurance industry recently held a safety event for teen drivers．At first，nineteen-year-old Kevin Schumann easily avoided large，inflatable dolls thrown in front of the car to represent children．He also avoided orange cones representing the edge of the road．Then，as part of the test，he started texting．He hit several cones and at least one doll．"That's what really opened up the experience for me to prove how bad it is to really text and drive．"
Debbie Pickford of Allstate Insurance says teens are especially at risk from distracted driving-and not just because they lack experience on the roads．"According to the research，teens don't really have fully developed brains until they're twenty-five years old．You put those two things together and you get a much，much higher risk．"
A new law proposes a graduated driver licensing system．Graduated means teenagers start with restrictions like on night driving and numbers of passengers．They could not get a full driver's license until age eighteen．
45．Of all the following，which is the best title for the passage？C
A．Car Crashes-the Top Killer B．Drunken Driving
C．Distracted Driving D．How to Avoid Car Crashes
46．According to Jim Jennings，what might be the main cause of distracted driving accidents？
A．Speed．B．Age．C．Experience．D．Cell-phones．
47．Which of the following statements is true？C
A．Thomas Didone is responsible for his son Ryan's death．
B．The insurance companies benefit a lot from teen driving．
C．Kevin Schumann took the test to learn the risk of texting while driving．
D．Debbie Pickford thinks that people cannot drive until brains are fully developed．
48．According to the new law，A．
A．it will be harder for young people to get a full driver's license
B．people will not be allowed to touch the wheel until they are 18
C．young people are forbidden to take any passengers in their cars
D．people can't drive until they graduate from colleges or universities．
分析 在美國車禍是青少年的頭號殺手，而且大多數(shù)的車禍都是由于開車時分心，沒有留意路況造成的．在本文中作者通過講述Ryan Didone的死亡以及保險公司所做的實驗說明了開車時打手機或發(fā)短信是造成車禍的主要原因，人們應(yīng)該對此高度注意．
解答 45．C主旨大意題．本文講述了絕大多數(shù)青少年所遭遇的車禍都是由于開車時打手機，發(fā)短信造成的．并且對此進行了詳細的介紹，由此判斷作者的目的是要提醒人們避免開車時候分神，故C選項內(nèi)容更能夠反應(yīng)文章中心，答案選C．
46．D細節(jié)理解題．根據(jù)文章第三段可知手機是造成分心的頭號原因，再由后文中的If you're texting while driving，you are twenty-three times more likely to get into an accident than somebody who isn't可知在四個選項中手機是最可能導致交通意外的，故答案選D．
47．C推理判斷題．作者在文章倒數(shù)二、三段介紹了保險公司對Kevin Schumann 所做的安全測試，證明了開車時候用手機的危害，注意力不集中，分心駕駛會帶來風險，故答案選C．
48．A細節(jié)理解題．根據(jù)最后一段A new law proposes a graduated driver licensing system．Graduated means teenagers start with restrictions like on night driving and numbers of passengers．They could not get a full driver's license until age eighteen．一個新的法律提出了一個畢業(yè)司機執(zhí)照制度．畢業(yè)意味著青少年開始限制，如夜間駕駛和禁帶許多乘客．他們直到十八歲才能拿到駕駛執(zhí)照．所以說對于青少年來說，想拿到駕照會更難．故選A
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