精选优质文档-倾情为你奉上全新版大学英语综合教程4 习题答案上海外语教育出版社Unit 1Part II Text Alexf OrganizationParts Paragraphs Main IdeasPart One Paras 1-2 Introduction Both Napoleons and Hitlers military campaigns failed because of the severity of the Russian winter.Part Two Paras 3-11 Napoleons military campaign against RussiaPart Three Paras 12-20 Hitlers military campaign against the Soviet UnionPart Four Para 21 Conclusionthe elements of nature must be rekoned