真 vs 真正（近义词）

1)真 and 真正 both mean"real,not false",and are so-called non-predicate adjectives adjectives which,unlike most adjectives,cannot function as the predicate of a sentence),e.g.真人真事(real people and real events),真的情况(fact),真正的东北人参(genuine ginseng of northeastern China),真正的好人(a true good man),etc.The difference between the two words is that,besides being real,真正 also has the meaning of being worthy of the name and reality.真人真事 only means"real story or real persons and events",while 真正的人 means"noble minded person".真（的）房子 only means "it is not a false setting",whereas 真正的房子 means" house up to a certain standard".Besides,真 can qualify a monosyllabic noun,but真正cannot.However,真的东北人参(real northeastern ginseng)and 真正的东北人参 (real northeastern ginseng)are exactly the same.
2)真 is often used in four-character set phrases,such as 真心诚意(genuinely and sincerely),真知灼见(real knowledge and deep insight),去伪存真(eliminate the false and retain the true),etc.
3)The adjective 真 also means "clear,vivid"and often functions as a complement:
4)真正 cannot be so used.
5)真 is also an adverb meaning"really".The adjective 真正 can also function as an adverbial meaning really.真正 is more emphatic:
6)In some colloquial phrases 真(adverb)is used:
7)真正 is rarely used here.But in some literary phrases,真正 is used,e.g真正如实地记述了历史(narrate the history accurately),真正实现了自我(have actually realized oneself),真正开辟了新纪元(have actually begun the new era),etc.