think單獨使用時表示“思考”,接that賓語從句時意為“認為、覺得”.
如：He is thinking how to work out the problem.他在思考如何解這道題.
I think I'll take it.我想我會買.
當think后面的賓語從句含有否定意義時,通常形式上否定 think但意義上卻是否定賓語從句.
如:I don't think it will rain.我認為不會下雨.
think of意為“考慮到、想到” 后常接代詞、名詞或動詞-ing形式,意為“認為”時,一般用于疑問句中與what連用.
如：It's good to think of the future.考慮到未來是對的.
He thought of a good plan.他想到一項好計劃.
What do you think of the play?