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四级考试是许多童鞋必须通过的考试，其重要程度不言而喻。希望通过四级听力天天练，童鞋们可以提高听力水平，高分通过四级，冲刺六级。

全文听写，童鞋们注意数字听写规则哦~~

Loneliness has been linked to depression and other health problems. It can also spread to others. A friend of a lonely person was 52%more likely to develop feelings of loneliness. And a friend of that friend was 25% more likely to do the same. Happiness, obesity and the ability to stop smoking can also spread like infections within social groups. Loneliness can affect relationships between next-door neighbors. The loneliness spreads as neighbors who were close friends now spend less time together. The study also found that loneliness spreads more easily among women than men.