Long long ago, in a big hot desert(沙漠), there was a lonely tree. It wasn't like other trees with lots of leaves. This one was having a hard life. With little rain and long hours of hot sun, its leaves dried up from heat.
One sunny day, a hawk flew over the desert. He was very tired, hungry and thirsty, so he landed(降落)on the tree's tallest branch to take a rest. Looking around, the hawk asked the tree, "Hey, why do you keep on living here in this empty(空的), hot place?Why don't you stay with your family and friends?Who needs you here?"
The tree answered, "You do. "
"Me?"the hawk was surprised. "I don't need you. I can fly everywhere, any
place is OK. "
The tree said, "You can fly away anytime, and that's true. But think about it. If not for me, you would have to sit on the hot sand instead of(而不是)my branches. Without me, someone might see you alone and wonder why you're here. When you are sitting on my branches, you think that I need you. "
The hawk thought for a moment and agreed. Yes, without the tree, the hawk wouldn't have anyone to talk to, either.