Title: To be a {#blank#}1{#/blank#} student

    Should I be allowed to make my own decisions?

    Drones (无人机) can do a lot of things for us, taking photos, delivering (递送) things from packages(包裹) to pizzas to beer and following wild animals.{#blank#}1{#/blank#}

    Can you believe it?{#blank#}2{#/blank#} US company IBM has made this kind of drone. It can deliver coffee to sleepy people. The drone can know when to bring a cup of coffee by studying a person's personal information. {#blank#}3{#/blank#}  There is a special device (设备) under the drone. It helps the drone to give coffee. The drone can also learn about someone's coffee-drinking habits and tell when someone need next cup of coffee.

    {#blank#}4{#/blank#}  One company in Africa use drones to deliver medicine and blood fast and save many people's lives. The drones are able to fly at speeds of up to 60 mph and when they are  within a minute of the destination(目的地), the doctors receive a text and wait nearby. The drone drops off the package and then returns to its home.

    A 92-year-old hunter in Virginia was lost and had to spend a night in the woods. The police searched for him all night but failed to find him.{#blank#}5{#/blank#} Also, drones helped firefighters know about the fire in wildfire fight.

    Language is always changing and developing. This isn't a bad thing. If English hadn't changed for a long time, we won't have words to describe telephones, washing machines, computers or some other new things.

    Language changes for several reasons. First, it changes because the needs of its speaker change. New technologies, new products, and new experiences need new words to express them clearly. Another reason for change is that different people have different language experiences. People use different sets of words and expressions, because they have different ages, jobs, education levels(水平) and so on.

    How does language develop then? On the one hand, many of the languages changes begin with young people. When young people communicate with others of their own age, their language grows in grammar, words and expressions that are different from the older people's. Some have a short lifetime but others can influence the language for long. On the other hand, we get new words in many different ways. We borrow them from other languages, we create them by making words shorter or combining words and we make them out of proper names.

    Languages that don't change over time are considered dead languages. The fact that English changes so much shows that it is alive and well.