For some time, I had been thinking that I wanted to do something to make strangers smile. I decided that I {#blank#}1{#/blank#} (leave) small notes around shops and other public places with positive sayings or kind words for strangers {#blank#}2{#/blank#} (find).

    A friend on Facebook posted that she had received a lot of beautiful paper from an artist friend and was wondering what to do with it. I told her about my idea, and she {#blank#}3{#/blank#} (immediate) said that this must be what her paper was meant for.

    So two friends on opposite {#blank#}4{#/blank#} (side) of the world started leaving these random notes of kindness. I leave my notes without {#blank#}5{#/blank#} (expect) any particular result. It doesn't matter whether they are read {#blank#}6{#/blank#} thrown away. The main thing is that I did this act.

    I now carry around a notebook in {#blank#}7{#/blank#} I write down lovely and inspiring phrases that I find. And I buy packs of Post­ its to write notes on whenever I see {#blank#}8{#/blank#} opportunity to make a stranger smile. I only leave the notes when I am feeling in a {#blank#}9{#/blank#} (happily) mood, as I don't want to pass any negative energy on to someone else.

    I sign them all {#blank#}10{#/blank#} (say) that this note is left for you by a stranger to make you smile. Then, I add a heart.

    We've all turned to sad music to make us feel {#blank#}1{#/blank#} (good)at some point in our lives, but why does doubling down on the sadness help drag us out of the mire(泥沼)？

    A new study sheds light on what's going on inside our brains {#blank#}2{#/blank#}we match our music to our feelings. It looks like sad music can be enjoyable -rather than {#blank#}3{#/blank#}(simple) depressing- because it triggers positive memories that can help to lift our mood. Psychologist Adrian North from Curtin University in Australia says there {#blank#}4{#/blank#} (be)two groups of possible{#blank#}5{#/blank#} (explain)for why we enjoy listening to sad music like this: one from social psychology, and one from cognitive neuroscience(认知神经学).

    In terms of social psychology, one way of {#blank#}6{#/blank#}(think) about this is that we feel much better about {#blank#}7{#/blank#} (we) if we focus on someone who's doing even worse, a process known as downward social comparison. Everything's going to be okay, because this person {#blank#}8{#/blank#}(have) an even worse day than you are.

    Another theory from social psychology is that people like to listen {#blank#}9{#/blank#} music that mirrors the tone of their current life circumstances -the songs act as {#blank#}10{#/blank#}sort of tuning fork(音叉) for our own situations and they resonate(共鸣) with us

There is one famous poem in Tang poetry, which reads: "I left home when a mere young man, and returned in old age. My native accents {#blank#}1{#/blank#}(remain) unchanged, but my ear - lock had grown thin". This poem {#blank#}2{#/blank#}(apparent) shows language is not only a tool for communication, but also the indicator of people's cultural identity. In a linguistic(语言学的)sense, dialect refers to the variety of a specific language {#blank#}3{#/blank#}( cause) by different geographical, social and cultural contexts.

Owing {#blank#}4{#/blank#}the vast areas and large population of China, diverse dialects can {#blank#}5{#/blank#}(find) in this great land, such as the Wu dialect in Shanghai, Hakka and Cantonese. However, it cannot be denied that since the popularization of Putonghua in China, the importance of dialects is lowering among Chinese people. To make matters {#blank#}6{#/blank#}(bad), some dialects have even disappeared due to the adoption of Putonghua {#blank#}7{#/blank#} is required in public places like schools and companies. {#blank#}8{#/blank#}(consider) the cultural significance of dialects, nowadays both Chinese {#blank#}9{#/blank#}(official) and common people are paying careful attention to {#blank#}10{#/blank#} preservation of dialects because it's the treasure of Chinese culture and art.