What's this on the table? It is a {#blank#}1{#/blank#} of my new classroom. {#blank#}2{#/blank#} at the picture. {#blank#}3{#/blank#} can you see {#blank#}4{#/blank#} the classroom? I can see a {#blank#}5{#/blank#} desk in the front of the classroom. Some books are {#blank#}6{#/blank#} the desk. I can see two white {#blank#}7{#/blank#} , too. There are{#blank#}8{#/blank#} colored chalks (彩色粉笔n them. {#blank#}9{#/blank#} is the broom (扫帚)? It's {#blank#}10{#/blank#} the door. I like this new classroom.

    Years ago, many zoos kept all kinds of animals in small cages. Small cages made it easy for people to see the animals, but a small cage is not a good place for an animal to{#blank#}1{#/blank#}free.

    Today zoos keep animals in different kinds of cages. The cages are very big and{#blank#}2{#/blank#}. They usually have plants and lakes. The cages look like the animals' habitats (栖息地).

    Zoos help to{#blank#}3{#/blank#}all kinds of animals. How do zoos do this? Zoos teach people how animals live in the wild. Zoos want people to help protect the animals' wild habitats. Many plants and animals are going extinct. Mammoths(长毛象), {#blank#}4{#/blank#}Asian elephants, are now extinct, There are no mammoths in the world today. Scientists say that seventy-four different kinds of living things go extinct every day!