中国大学生在学习英语的过程中总会出现一系列的介词错误,英语介词的频率高、词义杂、用法繁的特点以及介词、介词词组和介词搭配的学习难点给学习者带来了许多困难。本研究采用语料库为基础研究方法,以理工科大学生作文为数据,研究分析其中使用频率最高的前十位介词的主要错误,并且探索错误根源。 Chinese college students often have a series of prepositional errors in the process of learning English. The high frequency of English prepositions, the miscellaneous meanings of words, the use of tedious features, and the difficulties in learning prepositions, prepositional phrases, and prepositional collocations cause learners many difficulties. In this study, a corpus-based research method was used, and the major errors of the top ten prepositions were analyzed and analyzed using the texts of science and engineering college students. The root causes of errors were explored.