The pigs had been dead for an hour. Scientists made their hearts beat again.

[sadra1400]

The pigs had been dead for an hour. Scientists made their hearts beat again.​

Can anyone explain the grammar of this sentence to me? It's like passive voice.

had been + adjective
Or
have/has been + adjective

 

[jutfrank]

It isn't passive. It's past perfect (had been) + adjective (dead).

 

[Skrej]

Obviously, a result of the new lower USDA recommended pork cooking temp of 145 ºF from 160 ºF.

 

[sadra1400]

It isn't passive. It's past perfect (had been) + adjective (dead).

And we can use " The pigs had died for an hour" instead?

Do you get the same sense from both sentences?
Additionally, are they seen as having the same meaning to native speakers?

 

[5jj]

And can we can use " The pigs had died for an hour" instead?

No.

Do you get the same sense from both sentences?
Additionally, are they seen as having the same meaning to native speakers?

No.
No.

 

[sadra1400]

No.

No.
No.

I apologize for asking so many questions. Could you give me a brief explanation? Unfortunately, the differences between the two weren't well-covered in the internet's resources.
If it is complex and lengthy, please provide me with a link.

Thanks a lot.

 

[5jj]

"The pigs had died for an hour."

This would mean that the duration of the death of the pigs was one hour - they died for sixty minutes and then came back to life.

 

[sadra1400]

This would mean that the duration of the death of the pigs was one hour - they gied for sixty minutes and then came back to life.

And what does the sentence "The pigs had been dead for an hour" refer to(mean)?

 

[5jj]

And what does the sentence "The pigs had been dead for an hour" refer to(mean)?

They had died an hour before. They were, of course, still dead.

 

[tedmc]

The past perfect is used to distinguish the sequence of past events - which comes first.

 

[jutfrank]

You should distinguish between the adjective dead, which describes a state, and the verb die, which describes an action or process.