这个句子可以用不同的句型表示,你可以根据自己需要选择：
句型1.It is + adj.(for sb.) to do sth.
eg：It is wrong (for people) to cut down the forest.
句型2.V-ing（动名词）做主语
eg：Cutting down forest is wrong.
句型3.sb.find/think it adj.to do sth.
eg：People find/think it wrong to cut down the forest.
句型4.It is adj.that + 句子
eg：It is wrong that people cut down the forest.
