第三部分：阅读理解（共20小题，每题2分，满分40分）
阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题卡上将该项涂黑。
Authorities did not release（公布）the gunman’s name, but Peters said he had no record of police contact or an arrest record while attending Northern Illionois.
DeKalb county coroner（验尸官）Dennis J. Miller on Friday released the identities of the four victims who died in the county: Daniel Parmenter, 20, of Westchester; Catalina Garcia, 20, of Cicero; RyanneMace, 19, of Carpenters-ville; and Julianna Gehant, 32, of Meridan.
“Two other victims died after being transferred to hospitals in other counties,” Miller said. Witnesses said the gunman, dressed in black and wearing a stocking cap,  emerged from behind a screen on the stage of 200-seat Cole Hall and opened fire just as the class was about to end around 3 pm.
Officials said 162 students were registered for the class but it was unkown how many were there on Thursday.
Allyse Jerome, 19, a sophomore（大二学生）from Shunmburg, said the gunman burst through a stage door and pulled out a gun.
“Honestly, at first everyone thought it was a joke,” Jerome said. Everyone hit the floor, she said. Then she got up and ran, but tripped. She said she felt like “an open target.”
“He could’ve decided to get me,” Jerome said on Friday. “I thought for sure he was gonna get me.”
Lauren Carr said she was sitting in the third row when she saw the shooter walk through a door on the right-hand side of the stage, pointing a gun straight ahead.
“I personally Army-crawled halfway up the aisle（通道）,” said Carr, a 20-year-old sophomore. “I said I could get up and run or I could die here.”
She said a student in front of her was bleeding, “but he just kept running.”
More than a hundred students cried and hugged as they gathered outside the Phi Kappa Alpha house early Friday morning to remember Dan Parmenter, who was one of those killed.
56. Which of the following is true according to the passage?
A. Everyone thought it was a joke when the gunman appeared in front of them.
B. Peters had no record of police contact or an arrest record while attending Northern Illionois.
C. 162 students were attending a lecture when the gunman emerged from behind the screen.
D. The gunman opened fire as soon as the class came to an end.
57. How many people were shot to death according to the passage?
A. 4                         B. 6                          C. 8                          D. 162
58. The following are not witnesses except           .
A. Peters                   B. Dennis J. MillerC. Dan Parmenter          D. Lauren Carr
59. What was the first thing that Jerome did when she saw the gunman?
A. She got up and ran out of the room.       
B. She hit the floor.
C. She burst through a stage door and pulled out a gun.
D. She tripped and became an “open target”.
60. What is the best title of the passage?
A. Witnesses Tell of Horrible Experience   B. A Cruel Shooter
C. 162 Killed in an Accident                          D. An Unkown Gunman