Clothes are traditionally made of natural materials, such {#blank#}1{#/blank#} cotton, leather and wool. They are all from plants or animals, but that doesn't mean they are {#blank#}2{#/blank#} (friend) to the earth. For example, farmers sometimes have {#blank#}3{#/blank#} use a lot of chemicals to grow cotton plants.

    Scientists now {#blank#}4{#/blank#} (look for) new ways to make clothing materials. They hope the new materials are both comfortable and good for the earth. So far, scientists{#blank#}5{#/blank#} (work) out how to make materials out of corn husks (壳), chicken feathers and rice straws. I think more and more people will like to buy these kinds of clothes.

    Do you know what our {#blank#}1{#/blank#} (live) will be like in the future? I think each family will have {#blank#}2{#/blank#} robot. The robot will look like a human. You can ask it to do everything {#blank#}3{#/blank#} you. It will serve you twenty-four {#blank#}4{#/blank#} (hour) a day and never rest. It can talk with you when you get {#blank#}5{#/blank#}(boring). It is a difficult question that you don't know whether it is a human or a robot when you meet it {#blank#}6{#/blank#} the street.

    People will spend less time {#blank#}7{#/blank#} (work) and have more time to travel. The cars in the future will be able {#blank#}8{#/blank#} fly freely in the sky because every car has wings. Robots will take you to any place you want {#blank#}9{#/blank#} (visit).{#blank#}10{#/blank#}  (Take) the cars will be very safe because the robots drive them for you.