inthetree和onthetree的区别和用法：含义不同、用法不同、强调重点不同。inthetree侧重内在性，常用于修饰藏于树中的动物或人，或是处于树木内部的巢穴或物品；onthetree更注重其表面性，常用于修饰果实、树叶等外在的物品或记号。
一、in the tree的含义及双语例句
in the tree意为在树上，指外来物。例句有：
1、The boys carved their names in the tree.
男孩子们把名字刻在树上。
2、The woodpecker pecked a hole in the tree.
啄木鸟在树上啄了一个洞。
3、A little bird was singing happily in the tree.
小鸟在树上快乐地歌唱。
4、One day, a bird came and nested in the tree.
一天,一只鸟来了,在树上筑巢。
5、The artist painted a green and yellow leaf, then put it in the tree.
画家画了一片绿黄相间的叶子,然后把它放在树上。
6、There is not in the valley a tree or a stone I don't know.
这山谷里的一草一木我无不熟悉。
二、on the tree的含义及双语例句
onthetree意为在树上，常用于修饰果实、树叶等外在的物品或记号。例句有：
1、She bumped her arm on the tree.
她的手臂撞到了树上。
2、We followed the marks he had made on the tree trunks.
我们按他在树干上做的记号往前走。
3、Day after day, there were less and less leaves on the tree.
日复一日,树上的叶子越来越少。
4、Would you like to put the star on the tree?
你能把这颗星星放在圣诞树上吗？
5、You guys are a little early on the tree though.
你家现在就放棵树是不是太早了。
6、The amount of water needed depends on the tree and the soil.
所需的水的数量取决于树和土壤。
