In our life, we have rarely expressed our gratitude to the one who'd lived those years with us．In fact, we don't have to wait for anniversaries to thank the ones close to us —the ones so easily overlooked．If I have learned anything about giving thanks, it is this: give it now! While your feeling of appreciation is alive and sincere, act on it．Saying thanks is such an easy way to add to the world's happiness． Saying thanks not only brightens someone else's world, it brightens yours．If you're feeling left out, unloved or unappreciated, try reaching out to others．It may be just the medicine you need． Of course, there are times when you can't express gratitude immediately．In that case don't let embarrassment sink you into silence —speak up the first time you have the chance． Once a young minister．Mark Brian, was sent to a remote parish of Kwakiuti Indians in British Columbia．The Indians, he had been told, did not have a word for thank you．But Brian soon found that these people had exceptional generosity．Instead of saying thanks, it is their custom to return every favor with a favor of their own, and every kindness with an equal or superior kindness．They do their thanks． I wonder if we had no words in our vocabulary for thank you, would we do a better job of communicating our gratitude? Would we be more responsive, more sensitive, more caring? Thankfulness sets in motion a chain reaction that transforms people all around us—including ourselves．For no one ever misunderstands the melody of a grateful heart．Its message is universal; its lyrics transcend （超越） all earthly barriers; its music touches the heavens． 53．In the first paragraph the writer mainly encourages us      . A．never to overlook our close friends in daily life B．to express our sincere thanks timely to those around us C．to wait for a proper occasion to show our thanks D．to increase the world's happiness by saying thanks 54．According to the writer,      could be the best way to prevent ourselves from being left out. A．seeing a doctor to find the right medicine we need B．expressing our thanks as much as we can C．showing others actively we are interested in them D．speaking up the moment we have the chance 55．Mark Brian's story is mentioned in the passage in order to show the fact that       . A．the Indians didn't have any words for appreciation B．the Indians were particularly generous to others C．Mark Brian's set the Indians an example to show thanks D．some people may express their thanks through different approaches 56．What message does the writer intend to communicate in the last paragraph? A．Thanks is of great importance in developing harmonious relationship． B．One grateful heart is surely to deserve another good one in return． C．Thankfulness which goes beyond all barriers is universally understood． D．Human beings would misunderstand each other without appreciation．