根据以下资料，回答53~56题。
It used to take Redwood City, California police hours to locate gunfire.Now, they have a new tool that helps them find the gunfire quickly.This new tool is called the Shot Spotter, The police began using the Shot Spotter in 1995.They wanted to cut down on gunfire in their city.
One Shot Spotter covers a square mile.Eight microphones are put on the roofs of buildings.These microphones pick up gunfire noise.It only takes seven seconds to report the gunfire to the police.Then a red dot on the police map shows where the action is.
The Shot Spotter really works well.It locates the gunfire within 20 to 40 feet plus or minus.Redwood City police are very happy with the Shot Spotter.They think it might have helped catch the D.C.sniper.
Shot Spotters cost a lot of money.One of them sells for $200,000.Despite the cost, Shot Spotters can be a big help in fighting crime.
第53题 Eight microphones placed on rooftops __.
A.talk to police
B.warn the public
C.listen for gunfire
D.play rap music
【正确答案】：C
试题解析：参见第二段：麦克风放在房顶上是为了监听到打枪的声音。
第54题 The red dot on the police map shows __.
A.the address of the criminal
B.Redwood City
C.the capital of California
D.the location of the gunfire
【正确答案】：D
试题解析：参见第二段：警察地图上的红点表明枪声的具体位置。
第55题 The Shot Spotter has helped police __.
A.a little bit
B.cut down the use of weapons
C.tremendously
D.solve all the shootings
【正确答案】：C
试题解析：参见倒数第一段和第二段。
补全对话
根据以下资料，回答56~60题。
Eloise: What are you doing this weekend?
第56题 请在第_____处填上正确答案。
【正确答案】：B
试题解析：What are you doing
第57题 请在第_____处填上正确答案。
【正确答案】：E
试题解析：Would you be interested in joining me
第58题 请在第_____处填上正确答案。
【正确答案】：C
试题解析：When would you be leaving
第59题 请在第_____处填上正确答案。
【正确答案】：F
试题解析：Did you know that
第60题 请在第_____处填上正确答案。
【正确答案】：H
试题解析：That was part of my plan 这是有关周末计划的一段对话。
Eloise：你这个周末准备干什么?
Helen：还不知道呢。你准备干什么?
Eloise：我在考虑开车去海滩。
Helen：听来不错!
Eloise：你愿意跟我一起去吗?
Helen：当然，非常愿意。你什么时候出发?
Eloise：我想，咱们可以在周六早上8点出发。
Helen：我们可以有足够的时间游览。你知道吗，圣巴巴拉海滩有音乐节。
Eloise：这正是我计划的一部分。
Helen：好极了。咱们周六见。谢谢你邀我与你同行。
