开门见山，直接了当地提出自己对要讨论的问题的看法。
[1] Now people in growing/significant numbers are beginning/coming to realize/accept/(be aware) that...
[2] Now there is a(n)growing awareness/recognition of the necessity to....
[3] Now people become increasingly aware/conscious of the importance of ....
[4] Perhaps it is time to have a fresh look at the attitude/idea that....