Question

书面表达。

     根据提示写一篇70-90 词的短文，说明树木对人类的重要性，我们必须要爱护树木。
     提示：1. 树木可以美化环境（beautify the environment），有助于净化空气，有益于身心健康；
               2. 木材有许多用途，不但可用于建筑，还可用于制造许多其他的东西。
     例如，我们家中的许多东西都是木制的；3我们应种植和保护树木，严禁乱砍滥伐，以保持生态
平衡（the balance of nature）。
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Answer 1

     Trees can beautify the environment and help to make the dirty air clean. They also will be good for our
health. They can not only be used for building houses and making paper, but also can be used to make many
other things. For example, many things are made of wood, so we must plant more trees and mustn't cut
down trees. We must try to keep the balance of nature.
(答案不唯一)