Speaking of; talking about; when it comes to; as far as ..is concerned.; as regards ; regarding； 通常用于帮助提示转移话题，或转换另一个角度或方面。
例1： Speaking of those old people who live alone, I guess their children would support them financially, and visit them on a regular basis.
例2： As for how I felt about our city museum, I think it serves significant purpose as far as education is concerned.
例3：When it comes to the drawbacks, I think students' study efficiency may be low since there is no teacher around to supervise and motivate them.
1. On (the) one hand & on the other hand， while， whereas
例1：Stores sometimes are smelly and stuffy, while supermarkets usually have more pleasant shopping environments.
例2：Because older kids are more mature and better at self-control, whereas young children are always naughty and unmotivated.
2）However, in spite of this; nevertheless(formal);
例：Our local government has promised to improve air quality. So far, however, little has been achieved.
② In spite of this也是表示but的意思，细微的差别在于相比于in spite of this前面已经说的内容，后面的观点让人感到surprised。类似的衔接词还有still, yet, despite this/that.
例：The train was an hour late. In spite of this, I managed to get to the meeting in time.
例2：It's not uncommon to see a bunch of friends sitting together for dinner or lunch, yet each one of them is staring at his or her own cell phone.
Similarly, in the same way, just as…
Similarly用来衔接前后两句话，突出两者的共同点，例如：男孩和女孩都喜欢使用社交网站。能够突出共同点的衔接词还有in the same way, just as(多用于句首).
例：The girls particularly enjoy using social networking websites. Similarly, nearly all the boys said they spent at least two to three hours a week on these sites.
Besides, also, in addition, on top of that；as well as that；what is more； moreover(formal); furthermore(formal)
例：They need some other ways that can help them gain stable incomes. what is more, the local living environments should also be improved, as most of the local people are still living in shabby houses without proper sanitary facilities.
as a result, Therefore, thus(formal), hence(formal), consequently(written)
当前后内容是因果的逻辑关系时，可以使用therefore/as a result进行连接。
例：Children eat more junk food and get less exercise than those of previous generations. It is not surprising, therefore/as a result, that rates of childhood obesity are on the increase.
That is to say/in other words能够起到对之前阐述的观点进一步解释说明的作用。
例：A good teacher should have the ability to bond with the students, and understand their feelings and emotions. That is to say/in other words, he needs to communicate with the students.