(一)原因类
(1)Why does ... become so rampant(猖獗的)? First and foremost/In the first place/Firstly, .... Secondly, .... Last but not least, .... As a consequence/Consequently, ....
(2)Three reasons, in my mind, account for this social phenomenon. First and foremost/To begin with, .... Moreover, .... In addition/Besides, .... As a result, ....
(3)What are the incentives(动机,诱因) that drive people to ...? The most important factors should be .... Furthermore, .... What’s more...
(二)影响类
好处或意义角度:
(1)... is beneficial to/is meaningful/is conducive to ... in several ways/for several reasons.
(2)There are several advantages in/of … The first / biggest advantage is that… Besides, ...
(3)Nothing / Few things can equal / match with / be compared with…in terms of…
(4)… has a positive impact / influence / effect on people’s lives.
(5)… is playing an increasingly important role in people’s lives.
坏处角度:
(1)... has caused lots of problems / has brought us many problems / has bad effects on ...
(2)However, … cause / bring about / lead to / result in / contribute to some problems.
(3)Everything has two sides… is no exception. / As the proverb goes, every coin has its two sides / every medal has its reverse…is no exception. / ... is a double-edged sword. On one hand/For one thing, it...; but on the other hand/for another, it...
(4)However, the negative aspects are also apparent / obvious / evident. To begin with, … To make matters worse/Worse still, … Worst of all, …
(三)解决办法类
(1)Urgent measures are needed to tackle/handle/deal with/cope with/resolve the above-mentioned problem. On the one hand, ... so that ... is at hand. On the other hand, ... More importantly, ...
(2)To put an end to the serious problem, in my mind, it calls for the efforts from all sides. First of all, ... Moreover, ... Last but not least, ...