What does standard of living mean in 1984

Which pair of uses of figurative language from "the caged bird" support the extended metaphor of freedom versus oppression? back of the wind; floats downstream his wings are clipped; his feet are tied the caged bird sings; the free bird thinks dawn bright lawn; grave of dreams

It's to know your purpose before you read something because a purpose can:

Sense and sensibility - chapters 41-50 do eilinor and marianne each end up with the best husband possible? give reasons for your answer.