purpose n. 目的，意圖，目標e. g. What is your purpose in doing this? 妳做這件事的目的是什麽？比較：for…purpose為了……目的 on purpose 有意地，故意地，特意e. g. If I go there in future, it will be for the purpose of seeing you.如果我今後去那兒的話，就是為了見妳。I’ve come on purpose to speak ...reason在定語從句中的用法 2009-12-06 15:03 The reason why he could not go there was that his grades were too low.The reason why...is that... 這是特定句型, why引導定語從句,is後的用詞為that,壹般不用because.The reason why she did it is that she wouldn’t let her parents feel disappointed.她為什麽做那件事是因為她不想讓父母失望。該句中的why引導壹個定語從句，而that引導表語從句。(1) 句中that引導的表語從句說明主語reason的具體內容註意以下三種結構：① The reason is / was that clause. 當主語是reason / cause時，壹般不能用because或why引導表語從句，以免造成語意重復。The reason why/for which(也可以省去) he was late was that he got up late.他遲到的原因是他起床晚了。②當主語是This / That時，可以由because / why引導表語從句。He got up late. That was why he was late for class.He was late for class. That was because He got up late.(2)why在句中是關系副詞，引導定語從句，修飾先行詞reason，同時它在定語從句中作狀語，此時why = for which，但要註意：關系詞在定語從句中做主語或賓語時，要用關系代詞that或which。The reason why/for which(也可以省去) he was late was that he got up late.他遲到的原因是他起床晚了。The reason that/which/(也可以省去) he gave you was reasonable.他給妳的理由是合理的。cause在第二句中不能單獨使用. 要用也得有the cause of
2.reason就是理由. cause是引起XXX的原因.
妳別拿中文意思去忘記和理解. 這樣會分不清. 妳就多讀這兩個句子,讀出聲來, 在不同的時間至少讀40回. 妳就明白二者的區別了.這叫語感
cause用作動詞，當“引起，造成，使得”講。cause sb.sth.(=cause sth.to sb.)(後接間接賓語+直接賓語)為固定用法。