以下是针对自考英语二作文的万能句子分类整理，结合多个权威来源整理而成，涵盖开头、主体、结尾及连接词等实用句型：
一、开头段万能模板
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重要性引入
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Nowadays with the rapid development of... （科技/社会进步等背景）
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It is universally acknowledged that... （普遍认可的事实）
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There is a growing concern over the issue of... （当前热点问题）
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现象描述
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Recently, the issue of... has been brought to public attention.
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A proper part-time job does not occupy students’ too much time.
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二、主体段万能句型
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原因分析
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The popularity of digital... will have great influence on...
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Three possible reasons contribute to...
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On the one hand... but on the other hand...
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措施与建议
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To address the problem of... we should...
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It is essential to... in order to...
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One effective measure is to...
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三、结尾段万能模板
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总结归纳
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In conclusion, ... are just like a double-edged sword.
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On the whole, the benefits outweigh the risks.
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All in all, we should...
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观点升华
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As we move forward, we must...
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It is imperative that...
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In the end, we will learn that...
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四、连接词与过渡句
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递进关系 ：firstly, secondly, finally
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转折关系 ：however, on the contrary, instead
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因果关系 ：therefore, consequently, as a result
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举例说明 ：for instance, for example
五、写作注意事项
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图表作文 ：使用"the table/graph/chart shows that"结构，注意时态和数据描述规范
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议论文 ：采用"总-分-总"结构，每段突出一个观点
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灵活运用 ：根据作文主题选择模板，注意句子间的逻辑衔接
以上句型可根据具体题目灵活调整，建议结合真题进行实战演练，逐步形成自己的写作风格。