Chicago格式也是留学生Assignment写作常见格式，但是相对来说比较少见，但是不乏会遇到这类格式的写作技巧。掌握Chicago格式对于留学生而言是一门加分项，可以应对更多风格的Assignment写作，对完成日常作业和发表期刊都有很大帮助，本文描述了Chicago格式，希望能帮助到广大留学生。目前，学术界广泛接受的文件分为三种形式：美国心理学协会、美国航天局、现代语言协会（Modern Language Association、MLA）和芝加哥Chicago Manual Style（CMS）。许多学生认为Chicago格式是非常陌生的。然而，Chicago格式是最常用的英文文件格式。Assignment有两种主要的引用形式：评注和参考书目。 Key point 1.短语词组搭配错误Incorrect collocation of phrases and phrases Athough can't be used with but Because can't be used with so Point 2.时态保持一致的原则Principle of temporal consistency 在复合句中的某些从句中尤其是宾语从句从句时态要和主句时态保持一致 In some clauses of compound sentences,especially the tense of object clause and subject clause should be consistent The sentence patterns that many writers use are： Both of his parents were absent,therefore,this was a sad parents'meeting to him. Point 3.同一个句子不能出现两个谓语动词Two predicate verbs cannot appear in the same sentence Examples of errors: It aviods too many objective comments appear Point 4.Assignment写作 http://www.toutiaoliuxue.com/service/assignment/中两个没有任何连词的句子仅拿一个逗号隔开整个就是错句 Two sentences without any conjunctions,separated by a comma,are wrong sentences