When I was thirteen, my parents and I visited an eye doctor. After the examination, {#blank#}1{#/blank#} doctor said with coldness that I had an eye disease. I had inherited it, {#blank#}2{#/blank#} my brother's eyes seemed to be fine.

    Fifteen years after that, my father began to lose {#blank#}3{#/blank#} sight and I did, too. I fixed all my attention {#blank#}4{#/blank#} the effects of my own darkness. My world seemed {#blank#}5{#/blank#} (break) down and it destroyed all my dreams.

    {#blank#}6{#/blank#}, I learnt new things from my father. Twenty years later, I look back at what he has given me. He taught me the determination to move forward {#blank#}7{#/blank#} facing difficulties. His journey taught me valuable lessons for my own path in the darkness. He had held onto his faith and moved from his comfortable hometown to this unknown land.

    I did the same as I stepped into the strange {#blank#}8{#/blank#} (sight) world. Later I gained confidence and learned the language of thankfulness. With great appreciation for my father's example, I learned the powerful combination of faith and insistence and {#blank#}9{#/blank#} (perform) my own different roles. Luckily, {#blank#}10{#/blank#} I inherited from my father helped me see my life differently.

    It's amazing that Chinese police are using facial-recognition tech to catch criminals. Police in Beijing are reportedly testing out new smart glasses with facial-recognition technology. The smart tech, which {#blank#}1{#/blank#} (use) in many checkpoints to find suspects presently.

    Some people will certainly be worried about the possibility of police using facial-recognition tech to flag individuals, {#blank#}2{#/blank#} the chief executive thinks that there is no reason {#blank#}3{#/blank#} the concern, because he trusts the government. {#blank#}4{#/blank#} (Interesting), this is not the first time that facial recognition has been used to stop wrongdoers in Beijing. In 2017, we reported on how visitors were having their faces scanned automatically in a certain restroom in {#blank#}5{#/blank#} capita] city to prevent locals from {#blank#}6{#/blank#} (steal) the paper for use at home.

    Authorities in Shenzhen, China, have also set up artificial intelligence-powered CCTV cameras to scan the faces of those {#blank#}7{#/blank#} cross the streets unlawfully and display their {#blank#}8{#/blank#} (identity) on large LED screens for all people to see.

    If that isn't punishment enough, plans are now in place {#blank#}9{#/blank#} (link) the current system with cellular technology, so offenders will also be sent a text message with a fine as soon as they are caught {#blank#}10{#/blank#} (cross) the road against traffic lights.

    Many people agree that going to a museum is a good way of learning about ancient treasures. However, others may find {#blank#}1{#/blank#} boring to spend hours there. Therefore, how to make museums and their lifeless collections more appealing is a tough question worth {#blank#}2{#/blank#}（attach）importance to.

    Luckily, National Treasure（国家宝藏）, a TV program which{#blank#}3{#/blank#}（begin）to air on Dec, 3, 2017, shed light on ways to inspire interest in museums and their collections.

    Aiming to make ancient relics to come {#blank#}4{#/blank#}（live）, the program presents treasures through different artistic{#blank#}5{#/blank#}.（method）including dramatic performances and storytelling, {#blank#}6{#/blank#} fully interprets the history behind each cultural relic, so that audiences can not only understand how to appreciate the beauty of cultural relics, {#blank#}7{#/blank#} also know the civilization and the spiritual core of Chinese culture. In fact, such programs that promote traditional ancient relics have become popular {#blank#}8{#/blank#} recent years. For example, a 2016 documentary featuring the Forbidden City's cultural relics and their restorers, urged lots of college students {#blank#}9{#/blank#}（apply）to work as volunteers there. It is {#blank#}10{#/blank#}（universal）accepted that National Treasure has been successful in encouraging more people to visit museums by touching their hearts.

    Rivers are one of our most important natural resources. Many of the world's great cities are located on rivers and almost every country has at least one river {#blank#}1{#/blank#} (flow) through it, which plays an important part in the lives of {#blank#}2{#/blank#} (it) people.

    Since the beginning of history, people {#blank#}3{#/blank#} (use) rivers for transportation. The Yellow River and Changliang River play a large role in China. The Mississippi, the {#blank#}4{#/blank#} (long) one in the United States ever influenced the American people {#blank#}5{#/blank#} (great) in history. The lifeline of Egypt is the Nile. Rivers provide fresh water {#blank#}6{#/blank#} drink, grow crops, make electricity and chances to have fun for those {#blank#}7{#/blank#} live along their banks.

    {#blank#}8{#/blank#} the cities grow in size and industries increase in number, the river water is severely being polluted. It urges all countries to make {#blank#}9{#/blank#} (decide) and take immediate action to stop it from {#blank#}10{#/blank#} (pollute) any more.

    However depressed you may be feeling now, if you look back, there certainly will have been events that made you happy—maybe the time {#blank#}1{#/blank#} you bought your first bicycle or you were awarded a scholarship. When good things happen, we feel excited, proud and happy.

    But the problem is, happiness doesn't usually last. The excitement of that first bicycle purchase wears off, and the pride in the scholarship gives way to the stress of performing {#blank#}2{#/blank#} (well) on the next exam.

    Psychologists call this phenomenon hedonic adaptation (享乐适应症)—that is, {#blank#}3{#/blank#} good something makes us feel, most of the time we drift back to {#blank#}4{#/blank#} we started. An often {#blank#}5{#/blank#} (quote) example is that lottery winners are no happier than non-winners eighteen months after their win.

    But don't despair. It is possible to make happiness last. Psychologists have found two anti-adaptation tools that are effective in sustaining happiness: variety and appreciation.

    Variety is, as we all know, the spice of life. But it's also a useful weapon {#blank#}6{#/blank#} adaptation. Positive changes that {#blank#}7{#/blank#} (experience) in a variety of ways are more likely to lead to lasting happiness. For example, you will feel happier about your volunteer work{#blank#}8{#/blank#} you are able to cope with new tasks every week. The second tool, appreciation, is in many ways the opposite of adaptation. It's about focusing on something, instead of letting it fade into the background. It is only when you appreciate something {#blank#}9{#/blank#} an enduring feeling of happiness will follow.

    Human beings spend a lot of time figuring out what makes them happy, but not enough time {#blank#}10{#/blank#} (try) to hang on to the happiness they already have. This is like focusing all your energy on making more money, without giving any thought to what you will do with the money. The key to happiness is to not only look for new opportunities but also to make the most of the ones you've been given.