作文讲解
过 渡 词
1. 表示叙事次序   first, … second, … lastly, ...   firstly, … secondly, … lastly, …   to begin with, … next, … finally, …2. 表示补充意思   besides, moreover, furthermore,   in addition, what’s more   most important of all, last but not least

3. 表示结果
therefore, consequently, as a result
4. 表示对照   however,   while（而）…   for one thing, … for another, …   on the one hand, … on the other hand , …5. 表示例证   for example, for instance