Major efforts have been made to promote technological entrepreneurship.
问题描述：
Major efforts have been made to promote technological entrepreneurship.
我对have,been,made的关联不清楚,一定不是have been+v过分.是不是这样：是be made表被动,说明很大努力被作出,而have是表示一个完成的时态,be也得变成过分,至于to到底是个介词,指出所指对象.还是一个动词不定式?
正着说能不能这样:Promoting technological entrepreneurship have made major efforts.
答
1.been made是被动,前面加完成时.
2.to在这里不是介词,因为介词后面不能接动词原形,只能接名词、代词或者动名词等.这里是动词不定时,在句中作状语补充说明make efforts的目的.
3.不能像lz那样说.原句是一个被动句且省略了动作发出的主体.应该说成,We/They/The government/或者别的什么人 have made major effors to promote technological entrepreneurship.