本文参照Leech和Svartvik的条件句分类标准,结合情态助动词的系统功能分类和If条件小句句位分布特征,以BNC为语料源,从性别角度探究英语母语者在If条件句使用上所存在的差异。通过对If条件句的使用频数的检索和分析,发现其差异性主要体现在If条件小句的句位、条件句主句中的情态化表达方式以及条件句类型方面。该研究对If条件句使用的性别语言特征的教学和研究具有一定的指导意义。 In this paper, Leech and Svartvik’s conditional sentence classification criteria, combined with the modality of the modal auxiliary verbs and distribution characteristics of the if clause clause position, BNC as a corpus source, from the perspective of gender to explore the use of the English native speakers in the presence of If clause difference. Through the retrieval and analysis of the frequency of using If sentences, it is found that the difference is mainly reflected in the sentences of If conditional clause, the modal expressions in the main clause of conditional sentences, and the types of conditional sentences. This study is of guiding significance to the teaching and research of gender language features used in If conditional sentences.