As has been mentioned above...（正如上面所提到的…）
However, the difficulty lies in...（然而，困难在于…）
As is often the case...（由于通常情况下...）
As the proverb says, ...（正如谚语所说，...）
Apart from this, other ways/aspects/functions are...（除此之外，另外一些方法/方面/功能是...）
The last but not the least is...（最后但并非不重要的是...）
On the one hand,..., on the other hand,...（一方面……，另一方面……）
No less important/harmful is...（同样重要/有害的是...）
With the rapidly growing popularity of..., the quality of our lives has been considerably changed.（随着……流行程度/普及程度的快速增长， 我们的生活质量也被显著改变。）
What would our society be like if there were no...？（如果没有……我们的社会将会是怎样？）
Should we put sth. above sth. else？（我们应该把A（的地位/重要性）置于B之上吗？）
We should take some effective measures that...（我们应该采取有效措施……）
We should try our best to overcome/conquer the difficulties that...（我们应该尽力克服/征服那些...的困难。）
Recently, the problem of... has aroused people’s concern.（最近……问题已引起人们的关注。）
Recently, the problem of... has been brought to public attention.（最近……问题已引起公众的广泛关注。）
Recently, the problem of... has been brought into focus.（最近……问题已成为关注的焦点。）
这些句子可以根据不同的作文主题和情境进行选择和调整，使你的文章开头更加引人入胜和具有说服力。
