问题 阅读理解

阅读理解。

     Do you have bright ideas? Ideas or inventions that change society or, at least, make life easier for

somebody? Perhaps we all do sometimes, but we don't often make the idea a reality. Recently, in Britain,

there was a competition called British Designers for Tomorrow. The competition encourages young

people to carry out their bright ideas. There were two groups in the contest: Group One was for

schoolchildren under 16; Group Two was for schoolchildren over 16, and there were eleven

prize-winners altogether.

      Neil Hunt, one of the prize-winners, was called "Sunshine Superman". It's important when people

study the weather to be able to record sunshine accurately. We need to know how many hours of

sunshine we have and how strong it is. Most sunshine recorders only record direct sunlight. Neil's is more

accurate and this is very important for research into the way of using solar power.

     You can do so much with animated cartoon. Look at Simon West's idea for animated road signs. He

uses pictures which appear to move as you go nearer to or farther from them. This isn't a new idea. But it

is new to use these pictures on road signs. "We found that people were more likely to see moving signs,"

said Simon. So now, you can really see rocks falling, trains moving, horses running or a car falling over

the edge of a cliff. Quite a warning!

     The ideas in the competition were so inventive that we are surprised that British industry doesn't ask

more schoolchildren for suggestions. Perhaps this will be the start of "pupil power!"

1. The writer seems to be encouraging the British industry to         .

A. help schoolchildren in their studies

B. take better care of schoolchildren

C. stop asking schoolchildren for suggestions

D. pay more attention to schoolchildren's inventive power

2. Neil Hunt's design would finally lead to the improvement of the way of        .

A. recording direct sunshine

B. knowing how strong sunlight is

C. using the energy of the sun

D. recording the hours of sunshine

3. The organizers of the competition hoped the schoolchildren would      .

A. become good designers for future Britain

B. win as many prizes as they could

C. design something useful for the next day

D. invent something for immediate use

4. What's the use of Simon West's animated road signs?

A. To add to the beauty of a city.

B. To warn people on the roads of the danger ahead.

C. To help make a car trip more exciting.

D. To warn people to be careful while working.

5. The writer holds that people seldom      .

A. make their life easier

B. turn their bright ideas into reality

C. have bright ideas

D. think of inventing something

答案

1-5: DCABB 

填空题
问答题


阅读下列说明以及图10-7和图10-8,回答问题1、问题2和问题3。
[说明]
某高等院校的教学管理具有选课管理和成绩管理两大功能。选课管理主要完成以下工作:(1)录入与生成新学期课程表;(2)学生选课注册;(3)查询,学生、教师、教学管理员可以查询课程表,获得课程信息、学生选课信息和学生、教师信息;(4)选课注册信息的统计与报表生成。成绩管理主要的功能为: (1)成绩录入:教学管理员录入学生考试成绩;(2)成绩查询:教师、教学管理员可以查询学生考试成绩。。学生只允许查询自己的考试成绩,不允许查询他人的成绩;(3)成绩统计与报表生成:教学管理员进行成绩统计,打印统计报表。把学生选课注册信息传送给财务系统,以便计算学生应交纳的费用。
根据需要,系统设计的用例有“选课管理”、“成绩管理”、“查询课程信息”、“选课注册”、“管理开设课程”等用例。其中部分用例说明如下:
“查询课程信息”:学生、教师或教学管理员启动查询课程信息时,该用例开始运行。根据输入的查询要求(查询主题或关键字),显示有关的课程信息;
“选课注册”。当学生登录进行选课注册时,该用例开始运行,它提供了选择课程、注册、修改注册、删除注册等功能。学生登录需要用户标识(ID)和口令;
“管理开设课程”。 当教学管理员登录系统进行产生选课信息操作时, 该用例开始运行。 它首先检查用户标识(ID)和口令,然后从数据库中取出学生的选课注册数据,按照要求进行分类统计,生成选课注册报表。
活动者“学生”与用例“选课注册”的交互关系如下:当“学生”登录系统进入选课注册活动时,首先要输入用户标识(ID)和口令,经系统的“注册表单”接口对象验证,如果正确无误,则“学生”可以进行查询活动或选课活动,否则拒绝进入。若“学生”发出“查询”请求,系统的“选课注册表单”接口对象响应信息给“学生”,及发送增加或删除学生选课数据的消息。 “开设课程”对象响应该消息,找出数据库中的相关数据,增加或删除学生的姓名和所选的课程名,或做相应的修改,并把增加或删除学生课操作成功或失败的信息反馈给“选课注册表单”接口对象,“选课注册表单”接口对象再反馈给“学生”。如果“学生”按下“确认”键,则选课操作得到确认,发出提交请求。“选课注册表单”接口对象响应该请求,并发出“存储”消息。“开设课程”对象响应“存储”消息,进行数据库存储操作,选课数据存入数据库。若“学生”结束选课,发出“退出”系统请求,“注册表单”接口对象响应请求,关闭系统。
图10-7为系统的顶层UML用例图。图10-8为选课注册顺序图。


[问题3]
UML设计中交互图通常可以分为哪两类图绘制交互图对系统的设计有什么作用