电大资源网4015《商务交际英语1》形成性考核册作业及答案（Chapter 7-12）

 

Chapter 7   Technical communication

Overview

Letters, memos, and reports can be organized in different ways to serve a wide range of purposes. You need to be able to apply a variety of organizational strategies to the writing tasks that will be required of them. In this chapter, you learned how to organize and write instructions and manuals; descriptions of objects, mechanisms, and processes; persuasive letters and memos; and proposals.

 

Activity: (10 marks)

A. Choose one of the following topics and write a mechanism description of how it looks and a description of how it works.

electric fan

umbrella

electric screw driver

 

1.    Swing Unit

A. Turn the knob to the marked position. The fan swings within the limit.

b. Turn the knob to “0” where the swing unit stops.

c. If you want to adjust the wind direction, do not move the pedestal. Push the guard slightly until a click is heard.

 

2.    Timer

A. There are signs of “ON” and “OFF” and various timing graduations. Turn the knob to “ON” when timing is not needed.

b. Turn clockwise to each timing graduation.

c. Control the working hours. The fan would stop at the preset time.

 

3.    Regulation Unit

A. “0” means stop; the others mean the spinning speed ranging from the fastest to the slowest.

b. Lowering Unit.

A lock screw is installed to regulate the lowering unit.

c. Hold the swing unit on when fastening the screw. Press the swing unit to the desired position.

d. Fasten the screen.

 

4.    Light indicator and color-adjusting light.

A. The power supply of the light indicator is controlled by the key-board switch.

b. When the indicator flashes, the power is through.