[单元课文]《（农村调查）序言》《学习写调查报告》《中学生学习兴趣的调查》（以下比较时均以课题首字代之）[知识点比较]1．体裁比较。《农》重在科学地阐述调查研究的重大意义，同时讲述了调查研究的一些正确方法及应有的态度；《学》重点介绍写作调查报告的方法，详?.. [Unit Text] “(Preliminary Survey) Preface” “Learning to Write Investigation Report” “Survey of Middle School Students’ Interest in Learning” (The following comparisons are based on the first word of the topic) [Comparison of Knowledge] 1. Genre comparison. “Agriculture” focuses on scientifically expounding the significance of investigation and research, and at the same time tells some of the correct methods and attitudes of investigation and research; “Study” focuses on the method of writing an investigation report.