阅读短文,在空白处填入适当的单词或用括号内所给词的正确形式填空,使短文通顺、连贯。In the past, about 14% of the earth was covered {#blank#}1{#/blank#} rain forests, but today the number {#blank#}2{#/blank#}(be) about 6%. Why? Because people are {#blank#}3{#/blank#}(cut) down large areas of trees. If we {#blank#}4{#/blank#}(not protect) the rain forests now, we will never see them again.
Rain forests are in the tropical regions (热带 ) of the Earth. The trees are {#blank#}5{#/blank#}(usual) very tall. Plenty of rainfall helps them grow and live. These rain forests are important{#blank#}6{#/blank#} half of the world's animal species (物种), such as monkeys, elephants and tigers, live in rain forests.
The trees give a home and food to many {#blank#}7{#/blank#}(live) things. After the trees are cut down, many of these animals have nowhere to live. Each day, we are losing {#blank#}8{#/blank#}(hundred) of species of animals and plants because their homes are disappearing. Rain forests are {#blank#}9{#/blank#} important part of the Earth, so every one of us should try to protect{#blank#}10{#/blank#}(they).