原因方面
　　As ……..;Since………….;Because…………..;Now that………;Considering……..;Given……..;For reason that……..;The reason why……is……….;Because of……;
　　Owing to…..;On account of ……….; For the sake of; Due to; Result from; Thanks to;Attribute to
　　导致，引起, 成为…，原因(原因在前)
　　…..cause;……lead to……;Bring about…….;Contribute to; Result in; Account for; Trigger off(触发，引发); Responsible for; To blame for
　　因为，所以(原因在前)
　　……and so….;Therefore…….;Thus;Hence;As a result;That’s why;For this reason;Accordingly;As a consequence;Consequently;So…..that;Too………to
　　转折方面
　　However;In comparison;But;Nevertheless;In contrast; Whereas; yet
　　开头方面 At the beginning;First
　　结尾方面 Finally; Last but not least; In short; In conclusion; In the end; at the end of
　　举例方面 For example; One of the; Another is; For instance; Like
　　比较，对比方面 As a comparison;In contrast
　　建议方面
　　In my opinion;I suggest;Why not
　　主题方面
　　the topic is;we ’ll mainly focus on ...
　　反面或另外一面
　　Another point I want mention is;In addition (to) …… Besides;Apart from;Aside from;Moreover;Furthermore;What’s more;On the contrary;However;But;on the other hand;Conversely;By contrast;Whereas;A totally different picture lies in
　　列举话题的各个方面
　　First/firstly;second/secondly;third/thirdly;last/last but not least ;To begin with ;next;furthermore;finally;In the first place;in the second place;moreover ;by the way; Above all;in addition;then;afterward;On the one hand/on the other hand;For one thing/for another
　　话题的结束语
　　In short;brief/briefly;summing up;to sum up;summarizing; to summarize; To conclude; in conclusion; As a result; In general;Generally speaking; all in all;on the whole;on this basis; given all these aspects;Everything considered;Finally; it can be concluded/inferred/deduced that