Up to Tuesday's attack, the worst school shooting in the U.S.was in March 1998 in Jonesboro, two boys, aged 11 and 13, shot and killed a teacher and four girls.
Ⅰ.语音(每小题1分,共5分)
1.architect A. teach B. chemical C. church D. charity
2.pollute A. use B. produce C. industry D. blue
3.forecast A. mass B. disaster C. active D. wave
4.located A. crowded B. developed C. allowed D. amazed
5.flood A. food B. boot C. blood D. took