同位語從句是對其前面的抽象名詞(例如:idea , insistence , instruction , order , plan , proposal等)進行解釋說明,被解釋說明的詞和同位語在邏輯上是主表關系。同位語從句的結構一定是先行詞加引導詞加上從句的構成,that并不是唯一可以引導同位語從句的引導詞,whether , why , who . 從句一定要具有完整的句子結構,主謂賓都必須齊全,引導詞不充當任何成分。
常見先行詞:
belief , fact , hope , idea , doubt , news , rumor , conclusion , evidence ,suggestion , problem , order , answer , decision , discovery , explanation , information , knowledge , law , opinion , truth , promise , report , thought , statement , rule , possibility .
二、真題舉例
例句1:Scientists jumped to the rescue with some distinctly shaky evidence to the effect that insects would eat us up if birds failed to control them . (2010,46)
例句2:But the idea that the journalist must understand the law more profoundly than an ordinary citizen rests on an understanding of the established conventions and special responsibilities of the media . (2007,48)
例句3:Generally there was a belief that the new nations should be sovereign and independent states , large enough to be economically viable and integrated by a common set of laws .