In the first place,there is a kind of clothes called "smart clothes".It contains particles much smaller than the cells in your body.The particles can be programmed to change clothes' color or pattern.So when you say to your shirt,"Turn red."It changes from blue to red.What's more,cars can drive themselves in the future.Just tell your car where to go.On the way,you can call a friend using your jacket sleeeve.Last but not least,every article of food in the grocery store has a chip.It contains imformation about the food,so you won't eat expired food at all!

   So will all these things come true?It needs time telling.What we can do is that we should study hard and contribute to the  science in the future!