请教一些英文强的人

Homelessness

Happy families are all alike, unhappy families are unhappy in their own ways.Homelessness is not so rare to see even in developed countries like the U.S.A.,and people become homeless for many reasons,but they have one thing in common, they don't have homes,they wander around the street, eat food that left over by others, sleep on the pavement and some of them are mentally illed too.
Good or not should not be the only answers for this phenomenon, we should ask why, find out the real reason and then use social power like welfare service to give them homes and love.
Students like you and me should present our efforts more or less for social affairs like this and what's more,think over that, and get more meaningful things out from them is of great importance.

很麻烦啊..

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experts!!