提建议或给予忠告的常用词汇和句子：
Should:
"You should try to speak English."
"You shouldn't speak too fast."

Ought to:
"You ought to read more English books."

Could:
"You could always find a English pan pal."
Why don't you:
"Why don't you join a English club?"
If I were you, I'd...
"If I were you, I'd English channel."

Recommending:
"I recommend you to watch 8 o'clock morning news."

Suggesting:
"My English teacher suggested me to buy a good English dictionary."

Advise:
"My father advised my little sister not to watch TV too much,"

Advice:
(Advice是一个不可数名词。就是说我们不能说一个advice， 而要说some advice or a piece of advice)

"My grandma will give you some advice on this."
"Our teacher gave her a very useful piece of advice: to make a English Pan pal." 

Remember 记住了:
大多数人不喜欢听别人的建议和忠告。为了避免一开始就引起他人的反感，你可以这样表达：
"Have you considered..."
"Perhaps you could..."
"Do you think it's a good idea to...?"　
"Would you mind if I say something...?"