常用的关联词分为十大类：

　　一.　Addition　此外in　addition　，and，similarly，likew瞚se，as　well　as，besides，furthermore，also，moreover，too　，not　only　...　but，even，besides　this／that二.　Sequence　顺序first　，initially，second　etc.，to　be瞘in　with，then，next，earlier／later，　following　this／that，afterwards三.　Consequence　结果as　a　result　，thus，so，therefore，consequently，it　follows　that，thereby，eventually，tn　that　case，admittedly四.　Contrast对比however　，on　the　other　hand，despite，in　spite　of，though，although，but，on　the　contraryotherwise　，yet，instead　of，rather，whereas，　nonetheless　compared　with，in　contrast五.　Certainty　确定obviously　，certainly，plainly，of　course，undoubtedly六.　Condition　条件if　，unless，whether，provided　that，for，so　that，whether，depending　on七.　Time　时间before　，since，as，until，meanwhile，at　the　moment，when，whenever，as　soon　as，just　as八.　Summary　总结in　conclusion　，in　summary，lastly，finally，to　sum　up，to　conclude，to　re瞔apitulate　，in　short九.　Example举例for　example，for　instance，just　as，in　particular，such　as，namely十.　Reason原因since，as　，so，　because　(of)，due　to，owing　to，the　reason　why，in　other　words　，　leads　to，cause