1.描述過程，流程常用句子

the following diagraph shows the structure of……

the picture illustrates……

it mainly consists of……

it works as follows.

it always involves following steps.

the whole procedure can be divided into…stages.

2.描述流程，過程的常用過渡性詞語

firstly

secondly

thirdly/finally

the first step is to

the next step is to

the last step is to

the first stage involves

in the next stage

in the following stage

in the last stage

first of all

to begin with

next

then

later

at the same time

simultaneously

subsequently

consequently

before this

during

after this

in the course of

in order to/in order not to

in order that

so as to/so as not to

描述流程的文章，應說明：

1. 首先說明是做什么工作的過程，目的是什么

2. 準備工作

3. 按時間/過程先后描述

4. 結果

5. 簡單總結

描述一個實物/器具的工作過程，文章應分以下幾點：

1. 實物是什么，做什么用的

2. 基本結構

3. 工作過程

4. 簡單總結

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