英语语法答:如动词为 make, see, hear, watch 等,后接宾语补足语为不带“to”不定式时,变被动语态时要加上“to” 。I saw him fall off the tree.He was seen to fall off the tree.6. "be + 过去分词" 并非都是被动语态,系动词 be, feel, seem,look,等词后面的过去分词已转化为形容词,作表语用,表示某种...
英语语法答:如动词为 make, see, hear, watch 等,后接宾语补足语为不带“to”不定式时,变被动语态时要加上“to” 。I saw him fall off the tree.He was seen to fall off the tree.6. "be + 过去分词" 并非都是被动语态,系动词 be, feel, seem,look,等词后面的过去分词已转化为形容词,作表语用,表示某种...