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作者：黎志强（高考志愿填报专家）发布：2025-01-29 00:54:47 浏览：5

在英语学习中，be动词后面动词的形式一直是个重点。今天，咱们就来聊聊be动词（如am, is, are等）后面动词的那些事儿。

现在进行时

当be动词后面跟-ing形式的动词时，通常构成现在进行时态，表示正在进行的动作。例如：I'm trying to give you the right answer. 我正在试着给你正确答案。 2

be动词与动词的过去分词连用，则构成被动语态，表示主语是动作的承受者。如：I'm told that you don't know her. 我被告知你不认识她。 3

be动词后还可接由动词-ed形式或-ing形式转化成的形容词，构成系表结构，描述主语的状态或特征。例如：They are surprised to see him. 看到他们很惊讶。 4

be to do结构在英语中用途广泛，可表示按计划或安排要做的事、应该或必须做的事、打算或想做的事等。以下是一个详细表格：

含义	例句
按计划或安排要做的事	They said goodbye, little knowing that they were never to meet again.
应该	You are to report to the police.
必须	The letter is to be handed to him in person.
打算或想做的事	If we are to be there before ten, we'll have to go now.
禁止（否定句）	You are not to smoke in the reading-room.