onto和towards区别

onto与towards都可意为“inthedirectionof”“向，往”to侧重于到达,towards强调方向，onto表示\"到...上\"它是动态介词,onto在意上相当于to＋on，即表示某物向另一物运动(to)，然后停落在另一物之上(on)。使用时两者常可换用。

Old values are being grafted onto a new social class.

旧的价值观念正植根于新的社会阶层。

The new wing was built onto the hospital last year.

医院的新翼楼是去年增建的。

How did we get onto the subject of marriage?

我们怎么谈到婚姻问题上了？

He piled as much food as he could onto his plate.

他把食物猛往自己盘子里堆。

Grammar information enables students to map the structure of a foreign language onto their own.

语法知识使学生能够把外语结构和母语结构联系起来。