看，树上长了一个苹果，还有两只鸟在树上。
【英文对比翻译】
Chinese Style —— Look, there is an apple in the tree , and also two birds.
American Style —— Look , there is an apple on the tree ,and also two birds in the tree.
【点评】
英语中，只有“长”在树上的东西才用介词 on，例如：There are lots of apples on the tree；其余均用介词 in，例如：The primitive built houses in the tree（原始人在树上建房子）。本例句也不例外。