________________________________________________________________________

　　Ⅲ.阅读理解

　　Eleven－year－old Evan Green doesn’t want to save just one tree—he wants to save a whole rainforest!

　　Evan’s work to save the rainforests recently earned him a Barron prize for Young Heroes.The prizes are given to children or teenagers who have made a positive difference in the world.Evan’s goal is “to save enough rainforests to last forever”．He won’t have to do it alone.His actions have already inspired other kids to chip_in.One girl asked for donations instead of presents on her birthday.She raised $850.Other kids are starting their own conservation teams.

　　Evan says every one can help the planet—even by taking small steps such as recycling.He and his family try to make a difference every day.“We recycle，we try to limit our garbage...we’ve been walking a little more，and we buy local food，” Evan said.

　　21．Evan started the group________.

　　A．to help the poorB．to save the rainforest

　　C．to win the Barron prize

　　D．to make himself well－known

　　22．How much does it cost to buy and protect an acre of rainforest in Costa Rica?

　　A．About $4,500.

　　B．About $850.

　　C．About $280.

　　D．About $1,000.

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