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must的过去式和用法例句

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  must它的过去分词和过去式一样都是must,它还有什么你不知道的用法吗?以下是学习啦小编给大家带来must的过去式和用法辨析及例句,以供参阅。

  must的各种时态

  过去分词: must

  过去式: must

  现在分词: musting

  must的用法

  must的用法1:must表示义务或强制,含意是“必须”“应当”; 其否定结构表示“不许可”或“不应该”; 用于一般疑问句时,表示征求对方的意见,其肯定答语用Yes, please或I'm afraid so,否定答语用needn't或don't have to; must在间接引语中表过去。

  must的用法2:must表示必然性,一般只用于肯定句中,有时表示“意愿”,带有感情色彩。

  must的用法3:must表示推测,暗含很大的可能性,一般只用于肯定句中,在否定句中表示推测用can't而不能用mustn't。

  must的用法4:“must+be”“must+be+ v -ing”“must+表示状态的动词”可表示现在或一般的情况; “must+have”表示过去的情况; “must+表示动作的动词”表示将来的情况。

  must的用法5:must可表示讽刺或抱怨,此时须以you为主语。

  must的用法6:must表示客观上不愉快的情况,意为“偏偏”。

  must的用法7:must还可用作名词,作“必须做的事,必不可少的事物”解,常用于单数形式。

  must的过去式例句

  1. You must have noticed how tired he sometimes looks.

  你一定注意到他有时候显得特别疲惫。

  2. "His memory must be completely back, then?" — "Just about."

  “这么说,他的记忆一定是完全恢复了?”——“差不多。”

  3. There must be any number of people in my position.

  一定有很多人处在我这种境况。

  4. I must have driven past that place thousands of times.

  我得有上千次开车经过那里。

  5. "You must come to Tinsley's graduation party." — "I'd be delighted."

  “你一定要来参加廷斯利的毕业聚会。”——“我很乐意。”

  6. Builders must fasten down roofs of newly-built homes more securely.

  建造工人必须把新建房屋的屋顶固定得更牢靠些。

  7. "You must be expecting a young man," she teased.

  “你一定是在等哪位小伙子吧,”她揶揄道。

  8. It must have reinforced my determination to blend into my surroundings.

  这势必让我更加下定决心融入周围环境。

  9. That's why I must trust you to keep this secret.

  那就是为什么我必须得相信你会保守这个秘密的原因。

  10. Occasionally a patient is so debilitated that he must be fed intravenously.

  偶尔会有病人过于虚弱,必须通过静脉注射进食。

  11. The uncertainty created by this situation must be confusing for you.

  这种局面所造成的不确定性肯定让你感到困惑。

  12. Vintage ports must be decanted to remove natural sediments.

  上等的波尔图葡萄酒必须倒入其他容器中以滤除自然沉淀物。

  13. Your decision must be translated into specific, concrete actions.

  你的决定必须转化为具体明确的行动。

  14. Some thought must be given to the method of validation.

  一些想法必须通过验证法加以证实。

  15. The rules state that samples must be enclosed in two watertight containers.

  规则要求样本必须装在两个水密容器中。

  must用法must be的英语例句

  1. "His memory must be completely back, then?" — "Just about."

  “这么说,他的记忆一定是完全恢复了?”——“差不多。”

  2. There must be any number of people in my position.

  一定有很多人处在我这种境况。

  3. "You must be expecting a young man," she teased.

  “你一定是在等哪位小伙子吧,”她揶揄道。

  4. Occasionally a patient is so debilitated that he must be fed intravenously.

  偶尔会有病人过于虚弱,必须通过静脉注射进食。

  5. The uncertainty created by this situation must be confusing for you.

  这种局面所造成的不确定性肯定让你感到困惑。

  6. Vintage ports must be decanted to remove natural sediments.

  上等的波尔图葡萄酒必须倒入其他容器中以滤除自然沉淀物。

  7. Your decision must be translated into specific, concrete actions.

  你的决定必须转化为具体明确的行动。

  8. Some thought must be given to the method of validation.

  一些想法必须通过验证法加以证实。

  9. The rules state that samples must be enclosed in two watertight containers.

  规则要求样本必须装在两个水密容器中。

  10. Come on now. You know you must be hungry.

  好,来吧,你肯定已经饿了。

  11. Now sit down and make yourself comfortable. You must be very tired.

  现在坐下来,让自己舒服些,你一定很累了。

  12. The enemy must be digging themselves in now ready for the attack.

  敌人现在一定在挖掩体,准备迎接进攻。

  13. One rule specifies that learner drivers must be supervised by adults.

  一条规则明确规定,见习驾驶员必须有成人的监督。

  14. She says the sovereignty of the Crown must be preserved.

  她说必须维护王国政府的主权。

  15. The greatest polemicist of the 20th century must be Leon Trotsky.

  20世纪最了不起的辩论家非列昂·托洛茨基莫属。


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