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问题: 高一英语

1.It is hard to imagine that the time ___ to solve a tricky computer problem was 8 hours .
A.to take B. taking C.taken ( C)

2.We don't allow __ in the room .
A.to smoke B.smoking (B) 。
allow 的用法

3.Many new discoveries have been ___ since the beginning of this research work .
A.made B. appeared C.found D. invent . (A )

解答:

1.time 和take 之间为被动关系,应用过去分词taken,指时间被花费
2.allow doing 或allow sb to do 允许某人做某事,为习惯用法
3.make many new discoveries 为“取得很多新的成就”此处用的是被动结构