英语语法句式学习_动词句式 be said + 不定式

　　这是一个重要的句式，常常出现在非谓语动词的考查中。其特点是，可以转换成用it作形式主语，用that从句作实际主语。不定式可以是一般式，也可以是完成式。

　　例如：

　　The yeti is said to be a huge hairy animal. = It is said that the yeti is a huge hairy animal. 据说(喜马拉雅)雪人是一种巨大的多毛动物。

　　可以用于这个句式的动词有：report, think, believe, suppose, consider, expect, require, predict 等。

　　再如：

　　Everyone is expected to be here on time. = It is expected that everyone should be here on time.

　　Mr. Benet is believed to have a large farm on the east coast. = It is believed that Mr. Benet has a large farm on the east coast.

　　Thomas was considered to be one of the top students in his class. = It is considered that Thomas is one of the top students in his class.

　　需要注意的是：“be said +不定式”中的不定式，若是一般式，不定式动作与be said同时存在、或晚于be said发生;若不定式是完成式，则不定式动作先于be said发生。

　　例如：

　　China is said to have sent three manned spacecraft into space. (据人们”现在“说，中国”此前“已经发送了三艘载人飞船。)

　　Loulan is believed to have been gradually covered by sandstorms. (人们”现在“相信楼兰”过去“为沙尘暴所淹没。)

　　You are required to write a poem and read it before the club members. (所要求的动作有待完成。”要求“在先。)

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作者：苏北 (公众号 苏北教育)