问题 单项选择题

自然信息经过人工处理后,可用语言或图形等方式再生成信息,体现了信息的( )。

A.可转换性
B.可传递性
C.可识别性
D.可再生性

答案

参考答案:D

解析:本题考核的是信息具有的特性。信息具有许多特性,其主要特性包括以下几个方面。(1)可量度性。信息可采用某种度量单位进行度量,并进行信息编码。如现代计算机使用的二进制。(2)可识别性。信息可采取直观识别、比较识别和间接识别等多种方式来把握。(3)可转换性。信息可以从一种形态转换为另一种形态。如自然信息可转换为语言、文字和图像等形态,也可转换为电磁波信号或计算机代码。(4)可存储性。信息可以通过人脑以及人类发明的文字、摄影、录音、录像以及计算机存储器等都可以进行存储。(5)可处理性。人脑就是最佳的信息处理器。人脑的思维功能可以进行决策、设计、研究、写作、改进、发明、创造等多种信息处理活动。计算机也具有信息处理功能。(6)可传递性。信息的传递是与物质和能量的传递同时进行的。语言、表情、动作、报刊、书籍、广播、电视、电话等是人类常用的信息传递方式。(7)可再生性。信息经过处理后,可以其他形式再生。如自然信息经过人工处理后,可用语言或图形等方式再生成信息。输入计算机的各种数据文字等信息,可用显示、打印、绘图等方式再生成信息。(8)可压缩性。信息可以进行压缩,可以用不同的信息量来描述同一事物。人们常常用尽可能少的信息量描述一件事物的主要特征。(9)可利用性。信息具有一定的实效性和可利用性。(10)可共享性。信息具有扩散性,因此可共享。

阅读理解

第三部分      阅读理解(共20小题;每小题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。

Andy rode slowly on his way to school, day-dreaming about the fishing trip that his father had promised him. He was so busy dreaming about all the fish he would catch that he was unaware of everything else around him.

He rode along until a strange around drew him to the present. He came to a stop and looked curiously up to the heavens. What he saw shocked him. A huge swarm of bees filled the sky like clack cloud and the buzzing mass      towards him.

With no time to waste. Andy sped off in the opposite direction, riding furiously without knowing how to escape the swarm. With a rapidly beating heart and his legs pumping furiously, he sped down the rough road. As the bees came closer, his panic increased. Andy knew that he was sensitive to bee stings(蜇). The last sting had landed him in hospital—and that was only one bee sting! He had been forced to stay in bead for two whole days. Suddenly, his father’s words came to him. “When you are in a tight situation, don’t panic. Use your brain and think your ways out of it. ”

On a nearby hill, he could see smoke waving slowly skywards form the chimney of the Nelson family home. “Bees don’t like smoke,” he thought. “They couldn’t get into the house.”Andy raced towards the Nelson house, but the bees were gaining ground. Andy knew be could not reach the house in time. He estimated that the bees would catch up with him soon.

Suddenly, out of the corner of his eyes, he spotted a small dam used by Mr. Nelson to irrigate his vegetable garden. Off his bike and into the cool water he dived, disappearing below the surface and away from the savage insects. After holding his breath for as long as he could, Andy came up for air and noticed the bees have gone. Dragging himself out of the date, he struggled up the hilly slope and rang the doorbell. Mr Nelson took his inside and rang his mother.

“You’ll really need that fishing break to help you recover,”laughed his mother with relief. “Thank goodness you didn’t panic! But Andy did not hear her. He was dreaming once again of the fish he would catch tomorrow. ”

1. Why did Andy fail to notice the swarm of bees earlier?

A. He was riding to school.

B. He was listening to a strange sound.

C. He was going fishing with his father.

D. He was lost in the thought of the fishing trip.

2. Which of the following is NOT mentioned about the swarm of bees in the passage?

A. They crowded like a black cloud.

B. They shocked and terrified Andy.

C. They tried to attack Andy in a mass.

D. They made Andy stay in hospital for two days.

3. How did Andy avoid the bees in the end?

A. He asked Mr. Nelson in help.

B. He hid himself under the water.

C. He rushed into the Nelson house.

D. He rode off in the oppossnte ditcction.

4. Which of  he tollowing can best describe Andy’s escape from the becs?

A. No pain no gains.

B. Once bitten, twice she

C. Where there is a will, there is a way.

D. In time of danger, one’s mind works fast.

问答题