Sometimes your friends start to talk about a new video game or a new app they have downloaded. It sounds pretty cool, and your friends really seem to like it. You become so {#blank#}1{#/blank#}(interest) in it that you want to buy it too. Has this ever happened to you?

    In the US and in places around the world, there is a similar feeling of wanting the {#blank#}2{#/blank#}(new), greatest tech gadgets (小玩意). There is a big {#blank#}3{#/blank#}(attract) to getting the latest technology even though people may not need it. But why is this?

    As to(关于) these technologies, there's {#blank#}4{#/blank#} initial （最初的） excitement that {#blank#}5{#/blank#}(get) people's attention, according to Richard Larson, a director at MIT, US. If there's a big group of people {#blank#}6{#/blank#} want these things, you want to be a part of the excitement too.

    One of the major US {#blank#}7{#/blank#}(company) that really take advantage of this is Apple. It comes out with a new iPhone with very small changes every year. But people still flock (涌入) to the stores even if they have just bought the previous phone.

    However,{#blank#}8{#/blank#} （buy）these things may not always be the best choice. You could be buying things that you don't really need and {#blank#}9{#/blank#} (spend) too much money just for the right to show it off to your friends.

    Not only that, but our need to always be on your phones or playing video games takes {#blank#}10{#/blank#} a lot of time in our lives. So is this excitement over technology a good or a bad thing?

    At each stage of our life，we meet different kinds of people. Some are funny； some teach us lessons in life while others occupy a special space in our heart. The people {#blank#}1{#/blank#} (call)"best friends" are just these special friends.

    In our childhood，"best friends" might have meant the persons who are always by our side，{#blank#}2{#/blank#}it may be in the classroom or in the dining hall. However，as we are getting{#blank#}3{#/blank#} (old) than before，our definition(定义)of "best friends" changes. In my opinion，best friends are those who love you {#blank#}4{#/blank#}who you are and help you become who you should be. People in our life come and go，but some people stay. They are the people we should never lose.

    True friends are those who will never leave you when you need them most. They are always there{#blank#}5{#/blank#}(wait)for you and they love you when you forget to love{#blank#}6{#/blank#}(you)．The best feeling in the whole world is knowing that there is {#blank#}7{#/blank#}person who always prays for us and always keeps us in their thoughts. Friendship may not{#blank#}8{#/blank#}(necessary)be based on age，but it is based on{#blank#}9{#/blank#}(understand). Even our parents can be our best friends！So let us build our friendship and try our best {#blank#}10{#/blank#} (see)the good side of everyone!

    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.