(一)“there + be”结构中的名词及主谓一致 1、一个名词或代词作主语 当主语是可数名词单数或不可数名词时,其谓语必须用单数is;当主语是可数名词复数时,其谓语必须用复数are。 There is a riverin the picture. 画里有一条河。 There are two childrenin the room. 房...