1. 听录音，根据所听到的内容给下列句子排序

We can get wood from trees.

So please plant more trees.

Trees make our city beautiful.

They keep the air clean and cool.

We can use wood to make paper, desks and chairs.

Trees make our city beautiful. They keep the air clean and cool.<br />We can get wood from trees.<br />We can use wood to make paper, desks, and chairs.<br />So please plant more trees.<br />Trees make our city beautiful.<br />They keep the air clean and cool.<br />We can get wood from trees.<br />We can use wood to make paper, desks, and chairs.<br />So please plant more trees.