本书严格按照*新的大学英语六级考试大纲所要求的词汇进行编写,以词汇为**贯穿全书始终,分丸人类与自然、医学与卫生、科学与发现、历史与文化、文学与生活、名人演讲录6大主题,内容涉及诸如生态战、营养学、老年痴呆、艾滋病、“挑战者号”、伊丽莎白、美国社会的变迁、读书等话题,以及马丁·路德·金、肯尼迪、华盛顿、丘吉尔等名人的演说词。全书覆盖了近3000多个需要掌握的词汇,对近168组词汇进行了辨析。书中还提炼出大学英语六级考试中的**、难点和常考词汇,使考生深入了解词汇在考试中的具体运用,突出词汇的实用性,达到学以致用,帮助考生取得更好的成绩。 本书不仅适用于参加大学英语六级考试的考生,而且适用于全国英语等级考试4~5级的考生,以及想通过阅读学习词汇、掌握词汇用法的广大读者。

perface
instruction manual
part i (man and nature)
unit 1 new discovery in geology
unit 2 eco-war
unit 3 camping
unit 4 orchid
part ii (medicine and health)
unit 5 malnutrition
unit 6 new breakthrough of alzheimer's disease
unit 7 modern plague-aids
part iii (science and discovery)
unit 8 one gizmo, one chore
unit 9 computer and human brains
unit 10 tragedy of"the challenger" (i)
unit 11 tragedy of"the challenger" (11)
part iv (history and culture)
unit 12 queen elizabeth
unit 13 entertainments of early americans
unit 14 changes of american society in the nineteenth century
part v (literature and life)
unit 15 about reading books
unit 16 of studies
unit 17 random thoughts
unit 18 education: one of the key words of our time
part vi (addresses of celebrities)
unit 19 i have a dream (i)
unit 20 i have a dream (11)
unit 21 excerpts of inaugural address of j.