2006 年大学英语四级听力 60 个必考习语详解

教学目标或要求：了解氨基酸的结构，分类，命名。了解多肽结构测定和端基分析。 重点掌握氨基酸的性质和蛋白质的四级结构

Test2 Part I Writing （30 minutes） Directions: For this part, you are allowed 30 minutes to write a composition on the title Global Warming. You should write at least 120 words following the outline given below in Chinese:

Test1 Part II Reading Comprehension (Skimming and Scanning) (15 minutes) Directions: In this part, you will have 15 minutes to go over the passage quickly and answer the questions on Answer Sheet 1

1．否定前缀 un- uncomfortable, unacceptable, unavoidable in- incomplete, incapable, indispensable, inevitable im- imperfect, impartial, immortal dis- disable, disadvantage mis- misplace, mislead, misfortune ab- abnormal

Unit 2 Reading Comprehension Directions: There are 3 passages in this unit. Each passage is followed by some questions or unfinished statements For each of them there are four choices marked A), B), C)and

大学英语辅导_新东方四级词汇笔记非常完整版

（一）道路的分类 1、公路 我国的公路等级按照其使用任务、功能和适应的交通量分为：高速公路、一级公路、二级公路、三级公路、四级公路五个等级

大学英语辅导_2006年大学英语四级听力60个必考习语详解

大学英语辅导_大学英语四级常见词根词缀