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earlier. 夏洛克先前是不肯要錢的?! verything shall be done to save the ship. 一定要竭盡全力來拯救這艘船?! ?. 表示說話人的“意愿”有“命令”“警告”“強制”“允諾”“決心”等,用于第二、三人稱,要重讀。 五、should與ought to用法對比表 對比點 should ought to 表“應(yīng)該” 表勸告、建議 You should listen to the doctor’s advice. We should learn from Zhang Hua 表示“有責任有必要”做某事 You ought to finish your work before you go home. We ought to help each other. 表“估計” They should get home by now. 表示“非??赡堋钡氖拢勺g為“總應(yīng)該” If we start to work right now, we ought to finish it before lunch.(午飯前應(yīng)當能干完) 注: 1)、should還可在虛擬語氣中的使用 2). 注意:ought to的疑問式及否定式 Ought he to go? Yes, I think he ought to. No, he oughtn’t to. 否定式:ought not to a或oughtn’t to do(不說ought to not do) 反疑問句:oughtn’t ______?It’s raining heavily, we can’t go now. Must I …? Yes, you must.(一定) No, you needn’t./ you don’t have to.(不必) Do you have to go today? Yes, we do. 否定句:You don’t have to worry about that. 三、must與have to的用法對比表 對比點 must have to 1.表“必須” (主觀看法)必須;沒有過去式,可用于間接引語中?! 《?、may與 might用法對比表 對比點 may Might 1.表“詢問” May I …?(=Can I …?) Might I …?(=Could I…?)(但比用may 更客氣) “允許” You may take the boy there. He told me he might e .(might 與told相呼應(yīng)) 3.表“可能”“或許” She may nor