This is Dawn by Octavia Butler, the first book in a three part series. The main character is a woman who is reluctantly willing to work with the aliens and is stubborn and surly, though not as bad as some of the other humans.
It was set (at least partly) on a space ship. Humans are "set free" in small groups into an area of the ship that mimics Earth - specifically, a wilderness, with weather patterns, soil, animal predators, a created sun, etc
You’re kidding. Your ship is alive?”
“Yes. Come out.” The hole in the wall had grown large enough for them
to step through. He ducked his head and took the necessary step. She
started to follow him, then stopped. There was so much space out
there. The colors she had seen were thin, hairlike leaves and round,
coconut-sized fruit, apparently in different stages of development.
All hung from great branches that overshadowed the new exit. Beyond
them was a broad, open field with scattered trees—impossibly huge
trees—distant hills, and a bright, sunless ivory sky. There was enough
strangeness to the trees and the sky to stop her from imagining that
she was on Earth. There were people moving around in the distance, and
there were black, German shepherd–sized animals that were too far away
for her to see them clearly—though even in the distance the animals
seemed to have too many legs. Six? Ten? The creatures seemed to be
If I remember correctly, this was a training of sorts, by
(benevolent?) aliens who were trying to help humans relearn the skills
they would need, probably after they were returned to Earth.
You’ll go back there eventually.”
“You’ll send me back? And the other humans?”
“That you will come to understand little by little.”
How could she Awaken people and tell them they were to be part of the
genetic engineering scheme of a species so alien that the humans would
not be able to look at it comfortably for a while? How would she
Awaken these people, these survivors of war, and tell them that unless
they could escape the Oankali, their children would not be human?
I believe that there were 'interviews" where he was called into a small cubicle to explain himself multiple times.
There had not been a whisper of response. Her captors spoke when they
were ready and not before. They did not show themselves at all. She
remained sealed in her cubicle and their voices came to her from above
like the light. There were no visible speakers of any kind, just as
there was no single spot from which light originated. The entire
ceiling seemed to be a speaker and a light—and perhaps a ventilator
since the air remained fresh. She imagined herself to be in a large
box, like a rat in a cage. Perhaps people stood above her looking down
through one-way glass or through some video arrangement.
There was no answer. She had asked her captors when they began,
finally, to talk to her. They had refused to tell her. They had asked
her questions. Simple ones at first.