topic sentence英语主题句教学文案

t o p i c s e n t e n c e英

语主题句

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讲解

主题句是一个完整的句子，用以概括、叙述或说明该段落的主旨大意。每一个段落只能有一个主题，全段的其他文字都应围绕它展开。主题句通常由两部分组成，即主题 (topic) +中心思想（controlling idea）。中心思想的作用是导向 (control) 和制约 (limit) 主题。所谓导向就是规定段落的发展脉络，所谓制约就是限制主题的覆盖范围，两者不可分割。没有导向，内容就会离题或偏题；没有制约，内容就可能超出一个段落所能容纳的范围。下面的8个句子都是很漂亮的主题句，其中红色加粗的文字为主题，绿色斜体的文字为中心思想：

1. People can avoid burglaries（入室行窃）by taking certain

precautions.

( 接下来作者将围绕着“防范措施”展开段落)

2. There are several advantages to growing up in a small town.

( 接下来作者将围绕着“优点”展开段落)

3. Most US universities require a 550 point TOEFL score for a

number of reasons.

( 接下来作者将围绕着“原因”展开段落)

4. Fixing a flat tire on a bicycle is easy if you follow these steps.

( 接下来作者将围绕着“步骤”展开段落)

5. There are several enjoyable ways to travel between the US and

Queretaro.

( 接下来作者将围绕着“方法”展开段落)

6. Effective leadership requires specific qualities that anyone can

develop.

( 接下来作者将围绕着“品质”展开段落)

7. Industrial waste poured into Pearl River has led to dramatic

changes in its ability to support marine life.

( 接下来作者将围绕着“变化”展开段落)

8. In order to fully explore the wreck（残骸） of the Titanic,

scientists must address several problems.

( 接下来作者将围绕着“问题”展开段落)

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