改疑問句,英語
陳述句變疑問句,可分為兩種：
變?yōu)橐话阋蓡柧洌簩⒃渲谢蛟鋵?yīng)的助動(dòng)詞、be動(dòng)詞或情態(tài)動(dòng)詞提前到句首.例如：
Tom is a top student.——Is Tom a top student?
He worked hard at his lessons.——Did he work hard at his lessons?
We should believe in ourselves.——Should we believe in ourselves?
變?yōu)樘厥庖蓡柧?要加所需要對應(yīng)意義的特殊疑問詞.例如：
They arrived here 【yesterday】.——When did they arrive here?
【They 】arrived here——Who arrived here yesterday?
They 【arrived 】here yesterday.——What happened to them yesterday?
They arrived 【here】 yesterday.——Where did they arrive yesterday?