系动词be(was/were)在主系表结构中的基本用法？

Question

如题所述

Answer 1

回答如下：
英语的系动词不能单独作谓语，只能跟后面的表语一起构成复合谓语。除be动词之外，还有一些动词可以作系动词，如go，stay, keep, become, lie, turn, get，appear，seem, look, taste, feel, smell, sound等。能够作表语的词语有：名词、代词、数词、形容词、有些副词、介词短语、动名词、不定式、现在分词、过去分词以及表语从句。例如：
They are doctors.
He seems ill / to be ill.
She is in the room.
They look happy.
The food tastes terrible.
That sounds like a good idea.
I feel as if he has known it.
The fact is that he stole the money.
The question is for you to answer.
The question is what to do next.
Her job is tending / to tend the patient. The news is shocking.
We were surprised at the news then.
He is not in.
Who is there?

Answer 2

没什么特殊用法，就系表结构充当句子的谓语成分。

Answer 3

回答如下：
英语的系动词不能单独作谓语，只能跟后面的表语一起构成复合谓语。除be动词之外，还有一些动词可以作系动词，如go，stay, keep, become, lie, turn, get，appear，seem, look, taste, feel, smell, sound等。能够作表语的词语有：名词、代词、数词、形容词、有些副词、介词短语、动名词、不定式、现在分词、过去分词以及表语从句。例如：
They are doctors.
He seems ill / to be ill.
She is in the room.
They look happy.
The food tastes terrible.
That sounds like a good idea.
I feel as if he has known it.
The fact is that he stole the money.
The question is for you to answer.
The question is what to do next.
Her job is tending / to tend the patient. The news is shocking.
We were surprised at the news then.
He is not in.
Who is there?