自high患者
准确名称就叫“连词”。而且then不是连词，是副词。
连词有比如and（并列关系）， but（转折关系），although（转折关系），because（因果关系），so（因果关系）等等。连词是用来连接词与词、词组与词组或句子与句子、表示某种逻辑关系的虚词。连词可以表并列、承接、转折、因果、选择、假设、比较、让步等关系。
辅音
（注：多数辅音的读音与拼音差别不大，可以通过拼音来进行谐音；还有一部分辅音没有对应的拼音字体，这里我们主要是针对/θ ð ʃ ʒ/这四个辅音）其中，/θ/和/ð/这两个音标，它们并没有相近似的拼音来对应，主要是靠嘴形来记忆。
/θ/――上下牙齿咬着舌头尖，发“斯"的音；/ð/――舌头顶上牙堂发拼音z一声；/ʃ/――师；/ʒ/――牙齿闭合，舌头虚碰牙齿发拼音r一声。
skyblue086
那个就叫做连词，连接词也可以：大致有如下：写作考试常用词汇--连词篇 1)表层次:first,firstly, to begin with, further, in the first placesecond,secondly, to start with, still, furthermorethird,thirdly, what is more, last, last but not leastalso, and then, next, besidesand equally important too moreoverbesides in addtion finally2)表转折；by contrast although though yetat the same time but despitethe fact that even soin contrast nevertheless even though for all thatnotwithstanding on the contarary however in spite ofon the other hand otherwise instead stillregardless3)表因果；therfore consequently because of for the reasonthus hence due to owing toso accordingly thanks to on this accountsince as on that account in this wayfor as a result as a consequence4）表让步：still nevertheless concession granted naturallyin spite of all the same of course despiteeven so after all5)表递近：furthermore moreover likewise what is morebesides also not only...but also... too in addtion6)表举例：for example for instance for one thing that is to illustrate as an illustration a case in point7)表解释：as a matter of fact frankly speaking in this case namelyin other words8)表总结：in summary in a word thus as has been saidin brief in conclusion altogether in other wordsto conclude in fact finally in simpler termsindeed in short in particular that isin other words of course on the whole to put it differentlynamely in all therefore to summarize
