对于一个正在成为热点的领域及时地做出学术上的判断其实是一件非常困难的事。我在1999年就面临这样的困难,因为离子液体。绿色化学的兴起直接促进了离子液体研究热潮的出现:在国际上,热潮的高点出现在2002～2004年,这期间美国人跟进极快;在国内,则持续至今。国内研究者对国际大趋势的不了解由此可见一斑,这是国内大多数的同类工作不可能在国际上显露的原因之一。原因之二,就是 Making timely academic judgments about a hot area is a very difficult undertaking. I faced such difficulties in 1999 because of ionic liquids. The rise of green chemistry has directly promoted the emergence of the research boom in ionic liquids. In the international arena, the boom peaked from 2002 to 2004, during which the Americans followed very fast; in China, they continued to this day. This is evident by the fact that domestic researchers do not understand the international megatrends. This is one of the reasons why most similar jobs in China can not be exposed internationally. The second reason is that