问题 单项选择题 B型题

信息沟通的逆过程属于沟通步骤中的()

A.信息源

B.编码

C.传递信息

D.解码

E.反馈

答案

参考答案:E

解析:沟通的过程包括以下5个步骤:信息源、编码、传递信息、解码和反馈。信息源是指发出信息的人;编码是发送者将这些信息译成接受者能够理解的一系列符号;传递信息是通过某种通道将信息传递给接受者;解码是接受者将通道中加载的信息翻译成他能够理解的形式,解码的过程包括:接收、译码和理解三个环节;反馈是接受者将其理解的信息再返送回发送者,反馈的过程知识信息沟通的逆过程,它包括了信息沟通过程的几个环节。

阅读理解

阅读理解。

      The African elephant, the largest land animal remaining on earth, is of great importance to African

ecosystem. Unlike other animals, the African elephant is to a great extent the builder of its environment.

As a big plant-eater, it largely shapes the forest-and-savanna(大草原)surroundings in which it lives,

therefore setting the terms of existence for millions of other animals that live in its habitat.

     It is the elephant's great desire for food that makes it a disturber of the environment and an important

builder of its habitat. In its continuous search for the 300 pounds of plants it must have every day, it kills

small trees and undergrowth, and pulls branches off big trees. This results in numerous open spaces in

both deep tropical forests and in the woodlands that cover part of the African savannas. In these open

spaces are numerous plants in various stages of growth that attract a variety of other plant-eaters.

      Take the rain forests for example. In their natural state, the spreading branches overhead shut out

sunlight and prevent the growth of plants on the forest floor. By pulling down trees and eating plants,

elephants make open spaces, allowing new plants to grow on the forest floor. In such situations, the

forests become suitable for large hoofed plant-eaters to move around and for small plant-eaters to

get their food as well.

     What worries scientists now is that the African elephant has become an endangered species. If the

elephant disappears, scientists say, many other animals will also disappear from vast areas of forest

and savanna, greatly changing and worsening the whole ecosystem.

1. What is the passage mainly about?

A. Disappearance of African elephants.

B. Forests and savannas as habitats for African elephants.

C. The effect of African elephants' search for food.

D. The eating habit of African elephants.

2. What does the underlined phrase "setting the terms" most probably mean?

A. Fixing the time.                

B. Worsening the state.

C. Improving the quality          

D. Deciding the conditions.

3. What do we know about the open spaces in the passage?

A. They result from the destruction of rain forests.

B. They provide food mainly for African elephants.

C. They are home to many endangered animals.

D. They are attractive to plant-eating animals of different kinds.

4. The passage is developed mainly by ______.

A. showing the effect and then explaining the causes

B. pointing out similarities and differences

C. describing the changes in space order

D. giving examples

多项选择题