问题 阅读理解

阅读理解

         There is a one-day holiday in most countries on New Year's Eve. There are several interesting customs in the West, and there are many differences from country to country.  

         Though Christmas is a family get-together. New Year for some is a time to be with friends too. Parties are most often held to welcome New Year. At such arties, there is food and drink and dancing until the time nears for the coming of New Year.  

         At midnight, people often say “Happy New Year ”to each other. Champagne(香槟酒)is a favorite drink for New Year. In many western countries fireworks(烟火)are let off at midnight ,and many people like to make a noise, possibly to drive away bad spirits(幽灵).  

        One important song is often sung at New year-the Scottish(苏格兰)song of Auld Lang syne (good times long ago.)

1. People usually have great celebrations for New Year on         .   

A. New Year's Day                    

B. the night before New Year's Eve  

C. the night of New Year's Day      

D. the night before New Year's Day

2. In the West, New Year is also a time when.         .   

A. friends get together              

B. friends write to each other  

C. people can have a week's holiday  

D. people came from country to country

3. The word “customs ”in the passage means          .   

A. 习俗                    

B.  聚会            

C. 饮食                  

D. 活动

4.At midnight on New Year's Eve western people often          .  

① hold parties to welcome New Year        

② make a noise to drive away bad spirits  

③ drink with friends or families          

④ say “Happy New Year ”to each other  

⑤ sing an important French song          

⑥ let off fireworks  

A. ①②③④             B. ③④⑤⑥           C. ②③④⑥         D. ①②⑤⑥        

5. This passage mainly talks about

A. western people drink together on New Year's Eve  

B. what western people do on New Year's Day  

C. how western people spend their New Year's Eve

D. western people have a good time on New Year's Day

答案

1.D 2.A 3.A 4.C 5.C

单项选择题
问答题


阅读以下某门禁控制系统的技术说明,根据要求回答问题1~问题3。
[说明]
门禁系统是楼宇安防系统的重要组成部分,也是大厦智能化管理的体现。其工作过程是,如果在入口处的读卡器上刷卡,锁控器(LockController)接收读卡器(FingerReader)的读卡信息并进一步识别,如果为有效卡,则触发控制电控锁(Lock)的继电器,让持卡人通过。锁控器还会将这些读卡及进出事件存储起来,并将相关事件记录传送给上位机。每个锁控器管理1~4个门,每5~8个锁控器接入1条RS-485总线,并转换成RS-232方式与管理主机的串行口。对锁控器进行相关设置后,允许它脱机独立对门禁点进行控制,管理主机或通信线路故障都不会影响它的正常运行。在普通场合通常会设置1个出门按钮,允许已进入的人员按动此按钮以打开电控锁;而对于一些重要场合通常会在门的内外安装两个读卡器,进出门时都需按预设方式进行刷卡。
门禁系统中的每个电控锁都有一个唯一的编号。锁的状态有两种:“已锁住”和“未锁住”。在管理主机上可以设置每把锁的安全级别及用户的开锁权限。只有当用户的开锁权限大于或等于锁的安全级别并且锁处于“已锁住”状态时,才能将锁打开。用户的感应卡信息、开锁权限及锁的安全级别都保存在管理主机的数据库中。表2-19给出了门禁系统主要组成部件的作用。

表2-19 感应门禁系统主要组成部件及其作用表

部件名称主要作用(功能)
读卡感应器(FingerReader)通过射频感应原理,识别感应卡内置加密卡号
锁控器(LockController)存储感应卡权限和刷卡记录,向管理软件上传读卡器送来的信号,并负责和上位机通讯和其他数据存储器协调
电控锁(Lock)电动执行机构
主机管理软件(Win-Pak Software)通过计算机对所有单元进行中央管理和监控,进行相应的时钟、授权、统计管理工作
RS-485/232信号转换器对所有数据存储器进行联网和远距离通信
门禁电源提供系统工作时所需的电源能量
感应卡存储用户的不可复制和解密的ID号
开门按钮出门时可以设置为按此按钮出门(可选部件)

软件开发公司A承担了该门禁控制系统的开发任务,其开发小组采用根据问题领域的模型建立系统结构的面向对象方法完成该系统的设计,系统中的类及类之间的关系用UML类图表示。

[问题2]
序列图是场景的图形化表示,描述了以时间顺序组织的对象之间的交互活动,即显示了一组对象和由这组对象发送和接收的消息。如图2-26所示是用户成功开锁的序列图。依据上述说明中给出的词语,将图2-26中的(1)~(5)空缺处补充完整。