2023初三年级英语There be句型的用法复习思维导图

肯定句式：be +done (及物动词的过去分词)

如果是不及物动词 + 相应的介词或副词

否定句式：be +not +done

疑问句式：be动词(情态动词)放句首

被动语态中的be为助动词，无意义。be可能是am , is , are也可能是was ,were或原形be。

注：被动语态的时态是由be的时态决定的，be是什么时态，全句就是什么时态，be后面的过去分词不变。

1.The song is liked by young people. (肯定句)

2.The song isn’t liked by young people.(否定句)

3. Is the song liked by young people ?(一般疑问句)

4.Who is the song liked by ?=By whom is the song liked?(特殊疑问句)

→一般现在时

动词的被动形式：am/is /are done

例句：He is asked to do this.

→一般过去时

动词的被动形式：was/were done

例句：The story was told by her mother.

→一般将来时

动词的被动形式：will /shall be done

Is/are going to

例句：The problem will be discussed tomorrow.

→过去将来时

动词的被动形式：should/would be done

Was/were are going to

例句：He said the trees would be planted soon.

→现在进行时

动词的被动形式：am/is/are being done

例句：The novel is being written.

→过去进行时

动词的被动形式：was/were being done

例句：At that time the desk was being made.

→现在完成时

动词的被动形式：has/have been done

例句：The house has been built.

→过去完成时

动词的被动形式：had been done

例句：They said that their work had been finished.

含有情态动词的被动语态:情态动词+be+ done Your homework must be handed in today.

It is said that ……..

It is well known that …….

It is reported that……

History is made by the people. (一般现在时)

The cars were made in Tianjin in 1995. (一般过去时)

The tree will be cut down next year.(一般将来时)

The room must be kept clean.(含有情态动词的被动语态)

The door is being opened.(现在进行时)

The film has been seen by me.(现在完成时)

注：不同时态的被动语态的差异主要体现在助动词be的变化上,同时助动词be还要在人称和数上与主语保持一致。