外研版
[析] It 这里的语法作用是形式主语,而真正的主语是后面的不定式。形式主语和形式宾语都要用 it 而不能用 that, 如: I think it difficult to learn English well it 在这句中是 think 的形式宾语。
(三) 例题解析
1 There ___ a pencilbox on the desk.
A .is B. are C. has D. have
[答案] A.
[析] There be 句形中的 be 动词要看其后面离它最近的名词而定,如: There are two books and a pencil on the desk 但却可以讲 There is a pencil and two books on the desk
2 Could you tell me ___ ?