2020人气
返回课程 ASD-STE100（简化技术英语）规则部分Rule 6.5 Make sure that each paragraph has only one topic.规则6.5确保每个段落只有一个主题。

The topic sentence is the first and most important sentence in a paragraph. The topic sentence gives new information and makes a logical connection between it and previous information. To do this, the topic sentence usually contains a key word and/or a connecting word or phrase.


From the topic sentences, the reader will understand the contents of your text and will find specific information quickly. If the reader writes down each of the topic sentences from a text, they should make a good outline of its content. The other sentences in each paragraph give additional information that supports or develops the topic of the paragraph.

If you refer to the improved version from the example for rule 6.1 and 6.2 again, you can see that the text is divided into two paragraphs:
- Paragraph 1 (sentences 1 thru 5) - “Data to help the pilot”

- Paragraph 2 (sentences 6 and 7) - “How this data is transmitted.”


In the example that follows, the topic sentence at the beginning of each paragraph helps the reader know what will be explained. More information is then added gradually and the text is logically connected.


Example:


Instrument Landing System
The Instrument Landing System on the aircraft shows data that helps the pilot during the approach to the runway. This system shows the pilot the deviations from the “localizer” course and the “glideslope” path. The localizer course is aligned with the centerline of the runway. And the glideslope path is at a constant angle to the threshold of the runway. During the approach to the runway, deviation pointers in the course indicators show the pilot in which direction the aircraft must go:
- Left or right (for the localizer)

- Up or down (for the glideslope).


This data about deviations from the localizer course and glideslope path comes from two VHF transceivers. These transceivers transmit this data to Air Traffic Control.

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