teach sb to do sth 的基本用法 “教某人做某事”，如：
He promised to teach her to water-ski. 他答應教她滑水。
You can teach some parrots to talk. 可以教某些鸚鵡說話。
We should teach the children to know good from bad.
我們應教育兒童分辨是非。
Parents ought to teach their children to behave themselves.
父母應教導子女舉止得體。
He taught me to obey all commands without asking questions.
他教我毫無疑義地服從命令。