must 和 have to
S + must + V0 · S + have to / has to + V0两者都表示必须。must 偏重说话人自己觉得有必要,have to 偏重外部规定。注意 mustn't 表示禁止,而 don't have to 表示不必——两者意思完全不同。 常见错误:mustn't 是“禁止”,don't have to 是“不必”。把这两个混淆,就会把句子的意思理解反。
I must finish this today.
我今天必须把这个做完。
She has to work on Saturday.
她星期六要上班。
You mustn't park here.
你不能把车停在这里。
You don't have to come early.
你不必来得很早。









