must的過(guò)去式和用法例句
must它的過(guò)去分詞和過(guò)去式一樣都是must，它還有什么你不知道的用法嗎?以下是學(xué)習(xí)啦小編給大家?guī)?lái)must的過(guò)去式和用法辨析及例句，以供參閱。
must的各種時(shí)態(tài)
過(guò)去分詞: must
過(guò)去式: must
現(xiàn)在分詞: musting
must的用法
must的用法1：must表示義務(wù)或強(qiáng)制,含意是“必須”“應(yīng)當(dāng)”; 其否定結(jié)構(gòu)表示“不許可”或“不應(yīng)該”; 用于一般疑問(wèn)句時(shí),表示征求對(duì)方的意見,其肯定答語(yǔ)用Yes, please或I'm afraid so,否定答語(yǔ)用needn't或don't have to; must在間接引語(yǔ)中表過(guò)去。
must的用法2：must表示必然性,一般只用于肯定句中,有時(shí)表示“意愿”,帶有感情色彩。
must的用法3：must表示推測(cè),暗含很大的可能性,一般只用于肯定句中,在否定句中表示推測(cè)用can't而不能用mustn't。
must的用法4：“must+be”“must+be+ v -ing”“must+表示狀態(tài)的動(dòng)詞”可表示現(xiàn)在或一般的情況; “must+have”表示過(guò)去的情況; “must+表示動(dòng)作的動(dòng)詞”表示將來(lái)的情況。
must的用法5：must可表示諷刺或抱怨,此時(shí)須以you為主語(yǔ)。
must的用法6：must表示客觀上不愉快的情況,意為“偏偏”。
must的用法7：must還可用作名詞,作“必須做的事,必不可少的事物”解,常用于單數(shù)形式。
must的過(guò)去式例句
1. You must have noticed how tired he sometimes looks.
你一定注意到他有時(shí)候顯得特別疲憊。
2. "His memory must be completely back, then?" — "Just about."
“這么說(shuō)，他的記憶一定是完全恢復(fù)了?”——“差不多。”
3. There must be any number of people in my position.
一定有很多人處在我這種境況。
4. I must have driven past that place thousands of times.
我得有上千次開車經(jīng)過(guò)那里。
5. "You must come to Tinsley's graduation party." — "I'd be delighted."
“你一定要來(lái)參加廷斯利的畢業(yè)聚會(huì)。”——“我很樂(lè)意。”
6. Builders must fasten down roofs of newly-built homes more securely.
建造工人必須把新建房屋的屋頂固定得更牢靠些。
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.
這勢(shì)必讓我更加下定決心融入周圍環(huán)境。
9. That's why I must trust you to keep this secret.
那就是為什么我必須得相信你會(huì)保守這個(gè)秘密的原因。
10. Occasionally a patient is so debilitated that he must be fed intravenously.
偶爾會(huì)有病人過(guò)于虛弱，必須通過(guò)靜脈注射進(jìn)食。
11. The uncertainty created by this situation must be confusing for you.
這種局面所造成的不確定性肯定讓你感到困惑。
12. Vintage ports must be decanted to remove natural sediments.
上等的波爾圖葡萄酒必須倒入其他容器中以濾除自然沉淀物。
13. Your decision must be translated into specific, concrete actions.
你的決定必須轉(zhuǎn)化為具體明確的行動(dòng)。
14. Some thought must be given to the method of validation.
一些想法必須通過(guò)驗(yàn)證法加以證實(shí)。
15. The rules state that samples must be enclosed in two watertight containers.
規(guī)則要求樣本必須裝在兩個(gè)水密容器中。
must用法must be的英語(yǔ)例句
1. "His memory must be completely back, then?" — "Just about."
“這么說(shuō)，他的記憶一定是完全恢復(fù)了?”——“差不多。”
2. There must be any number of people in my position.
一定有很多人處在我這種境況。
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.
偶爾會(huì)有病人過(guò)于虛弱，必須通過(guò)靜脈注射進(jìn)食。
5. The uncertainty created by this situation must be confusing for you.
這種局面所造成的不確定性肯定讓你感到困惑。
6. Vintage ports must be decanted to remove natural sediments.
上等的波爾圖葡萄酒必須倒入其他容器中以濾除自然沉淀物。
7. Your decision must be translated into specific, concrete actions.
你的決定必須轉(zhuǎn)化為具體明確的行動(dòng)。
8. Some thought must be given to the method of validation.
一些想法必須通過(guò)驗(yàn)證法加以證實(shí)。
9. The rules state that samples must be enclosed in two watertight containers.
規(guī)則要求樣本必須裝在兩個(gè)水密容器中。
10. Come on now. You know you must be hungry.
好，來(lái)吧，你肯定已經(jīng)餓了。
11. Now sit down and make yourself comfortable. You must be very tired.
現(xiàn)在坐下來(lái)，讓自己舒服些，你一定很累了。
12. The enemy must be digging themselves in now ready for the attack.
敵人現(xiàn)在一定在挖掩體，準(zhǔn)備迎接進(jìn)攻。
13. One rule specifies that learner drivers must be supervised by adults.
一條規(guī)則明確規(guī)定，見習(xí)駕駛員必須有成人的監(jiān)督。
14. She says the sovereignty of the Crown must be preserved.
她說(shuō)必須維護(hù)王國(guó)政府的主權(quán)。
15. The greatest polemicist of the 20th century must be Leon Trotsky.
20世紀(jì)最了不起的辯論家非列昂·托洛茨基莫屬。
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