any grammar errors? or something else?

Question

George Orwell’s 1984 reassures us that as long as other biological life forms, such as plants or animals, can penetrate through the iron bars of humankind’s societies, there will always be a potential catalyst for rebellion by human’s comparison of the supposed “freedom” of nature to their own lifestyle.
Orwell often uses animals to his symbolize characters’ situations. When Winston and Julia heard the beautiful song of a thrush in the country, Winston started to wonder, “For whom, for what, was that bird singing?...What made it sit on the edge of the lonely wood and pour its music into nothingness?” (124). The bird parallels Winston and Julia: two rebels protesting to no one but themselves and aware that the idea they preach will continue even after they die. Winston evaluates and compares his situation to the bird’s as if it were human.

Answer 1

A few minor errors:

1) you don't use "through" with penetrate, which means to go through, so it becomes redundant. Just leave the word "through" out.

2) human's, in the first paragraph, should instead be humans', since human is singular, but you are using humans as a collective term.

3) in the last sentence, you are implying that the situation, not the bird, is human. A better way of putting it would be, "Winston evaluates and compares his situation to the bird's, as if that animal were human."

Answer 2

Very good. Just a few things stood out for me.

"...human's comparison...to their own lifestyle..." The singular and plural don't agree. Perhaps "human beings'" instead.

Probably just a typo, but "...animals to his symbolize..."

Rather than the phrase "started to wonder," to my ear just "wondered" sounds better.

A comma after themselves.

And I would say "...compares his situation to that of the bird..."

Nice job.

Answer 3

I just wanted to write a response to tonalc's last comment. You don't need a comma after "themselves" in the second to last sentence, because it is not a compound sentence.