Vocabulary

1.grudge 【to think that someone does not deserve something good that they have 】

双宾语 e.g.  I don't grudge you your holiday, it's just that you've chosen a bad time to go

2.an article of faith

3.dash down 猛掷

Expression

1. This work was strictly voluntary, but any animal who absented himself from it would have his rations reduced by half.

2.There was a good quarry of limestone on the farm. 

3.They dragged them with desperate slowness up the slope to the top of the quarry.

4.His great sides matted with sweat, filled everyone with admiration.

5.The animals were not badly off throughout that summer. [not having enough of something that you need]

6.The animals were conscious of a vague uneasiness.

7.They were promptly silenced by a tremendous growling from the dogs. [ If you do something promptly, you do it immediately.]

8. He set the animals minds at rest.

9.A terrible sight had met their eyes.

10.The animals were shocked beyond measure to learn that...

Summary

The trickery of Napoleon and his pigs is evident, but the animals are too kind to find his real purpose. Napoleon has superiority and special treatment, and the only thing other animals can do seemed to be the acceptance.