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1，only的用法

A 主將從現。條件狀語從句用現在時，主句用將來時。only if為連詞，只要。

only的用法

2，only的強調句用法

only后面跟狀語時倒裝。所謂的狀語包括三種：副詞，介詞短語，狀語從句例如：only then can you catch up with others. only in this way can you work out this problem. only when you follow his advice, will you get the right answer.

only的強調句用法

3，only的后面要加動詞原形嗎

only的后面不加動詞原形。only的用法：1、only用作形容詞(1)與the連用，意為“惟一的”，作定語。Eg：Mary is the only girl in her family. 瑪麗是家里惟一的女孩。(2)與an連用，意為“單獨的”，作定語。Eg：Jim is an only son of his parents. 吉姆是他父母的獨子。(3)與the 連用，意為“最好的、最適當的”，作定語。Eg：She is the only person for the job. 她是做這項工作的最佳人選。2、only用作副詞(1)常位于所修飾的動詞、短語或從句前，意為“只是、僅僅”。Eg：We have no keys, so we can only wait for a while.我們沒有鑰匙，只好等一等。(2)意為“反而”。Eg：Failure only strengthed our determination.失敗反而使我們的決心更堅定了。(3)only和不定式連用構成結果狀語，表示與預料相反的結果，意思是“竟然……、結果……”。Eg：He tried a second time only to fail again.他再試一次，竟然還是失敗了。3、only用作并列連詞用作并列連詞時，意為“但是、可是、可惜、不過”。Eg：This skirt is so beautiful, only it costs too much.這本詞典正是我想要的，但是太貴了。擴展資料not only的用法：1、置于句首的Not only… but also僅連接兩個并列詞語，不可用倒裝結構，如：Not only you but also I am fond of music只有當Not only… but also連接兩個分句時，才在第一個分句用倒裝結構。例如：Not only is he a teacher, but he is also a poet.他不僅是一位教師，而且是一位詩人。2、如果修飾主語就不能倒裝。Only John was there-----因為only已經修飾主語了。She met only John there------Only John did she meet there------only修飾John放在句首就要倒裝.

only部分倒裝

only ＋動詞不定式用作結果狀語,表示與原來相像相反的或意想不到的結果，通常都是令人失望的結果。意為“不料…”、“反而…”、“結果卻…”。“only ＋現在分詞”也可作結果狀語，但它通常表示一個自然而然的或意料之中的情況和結果。謂語動詞和現在分詞－ing之間是因果關系。

only只是一個副詞就像never一樣只是表達動作的一種程度或者方式與動詞的時態和人稱變化無關

不加情態動詞后面才加

not only but also引導并列句，其后可以是整個句子也可以是句子的某一成分，不一定要用動詞原形。舉例：he not only has finished learning english,but also has already studied french.

only的后面要加動詞原形嗎

4，only倒裝用法是什么

only 的用法 .only位于句首修飾壯語要倒裝只有倒那時我才將會有機會實現我的夢想. will 是謂語的一部分因倒裝提前了.再如 only in this way can you learn english well 是only引起的倒裝句,will 是助動詞,如果這個句子正過來說就是 I will have a chance of achieving my dream only then 在句首的only如果后面跟了副詞、介詞短語或從句等狀語，則主句用倒裝結構。如only后跟的是主語，就不用倒裝結構了。例如： Only when the war was over in 1918 was he able to get back to work． Only in this way can you learn English well． Only after a bitter struggle was the aim achieved． Only the teachers are allowed to use the room．（不倒裝） Only five men were hurt in the accident．（不倒裝）注意，only和所修飾的狀語如果不在句首，則不倒裝。如： The boy was helped out only when his father arrived in a hurry． Only then did he realize the importance of English 只有在那時候他才意識到英語的重要性。 only then ,是過一小會兒的意思，一般用在句首，引導倒裝句。例句Only then did he realize the importance of English．解析：在句首的only如果后面跟了副詞、介詞短語或從句等狀語，則主句用倒裝結構。如only后跟的是主語，就不用倒裝結構了。再比如 Only when the war was over in 1918 was he able to get back to work．(倒裝句） Only five men were hurt in the accident．（不倒裝）

only 放在句首，但修飾的不是狀語而是主語時，不倒裝。如： Only John is allowed to enter the lab. 只有約翰被允許進入實驗室。 Only the boy himself knows what he is going to be. 只有這孩子本人知道他將來的前途。 6.以so 開頭的句子。如果只是重復前面一句話的意思，不倒裝。如： It was very cold yesterday.昨天很冷。 So it was.正是這樣。 He did a good job. 他干的很出色。 So he did. 確實如此。 7.以 not only 開頭的句子要倒裝，但but also 后面的句子不倒裝。如： Not only did he speak more correctly, but also he spoke more easily. 不僅他說得更準確，而且他說得也更輕松。 8.以 not until 開頭的句子主句要倒裝，沒有助動詞時要加助動詞。如： Not until Mother came back did it stop raining. 直到媽

5，only有什么用法

only one 只有一個；唯一 only for 要是沒有 only when 只有當…才能 only if 只要……就；只是在……的時候 only then 直到那時（后面的句子要倒裝） if only 只要；要是…多好 only once 只有一次

it was only after the creation of the faa that full-scale regulation of americas airspace took place, and this was fortuitous, for the advent of the jet engine suddenly resulted in a large number of very fast planes reducing pilots margin of error and practically demanding some set of rules to keep everyone well separated and operating safely in the air.　　難點解析　　本句的難點在于對句子的邏輯關系的理解。首先要理解it was only after…that結構所表示的時間關系，并且要抓住連接詞for所表示的整個句子的因果關系，以及子句中resuted in、reducing…and practically demanding…等詞所表示的邏輯含義。　　我們可以理一下句中的邏輯關系：首先faa成立，然后是full-scale regulation出現，但是這只是巧合，原因是the advent of…，暗指the advent of…是真正the creation of the faa的原因。然后又介紹了the jet engine所帶來的一系列影響(a large number of…)，這些影響又是如何導致進一步的影響(reducing pilots margin of…)和需求(demanding some set of rules)。把這些關鍵點找到了，句子的含義就明朗了。　　句子分析　　子句類型并列句　　連接詞無邏輯連接詞　　子句內容it was only after the creation of the faa that full-scale regulation of americas airspace took place.　　語法分析it was [強調結構] only after the creation of the faa [狀語] that [強調結構] full-scale regulation of americas airspace [主語] took place. [謂語]　　子句翻譯聯邦航空管理局剛成立不久，完整的美國航空法規就誕生了。　　子句類型并列句　　連接詞and　　子句內容this was fortuitous.　　語法分析this [主語] was [系動詞] fortuitous. [表語]　　子句翻譯這是巧合。　　子句類型狀語從句　　連接詞for　　子句內容the advent of the jet engine suddenly resulted in a large number of very fast planes reducing pilots margin of error and practically demanding some set of rules to keep everyone well separated and operating safely in the air.　　語法分析the advent of the jet engine [主語] suddenly [狀語] resulted in [謂語] a large number of very fast planes [賓語] reducing pilots margin of error [定語] and [連接詞] practically demanding some set of rules [定語] to keep everyone well separated and operating safely in the air. [定語]　　子句翻譯噴氣式飛機的出現突然導致了大量高速飛機的產生，這種飛機減少了飛行人員的誤差幅度，而且在實際操作中也需要某套規則來保持每個飛行器的適當距離，并且能夠在空中安全地操作。　　全句翻譯　　聯邦航空管理局剛成立不久，完整的美國航空法規就誕生了，這只是巧合，因為噴氣式飛機的出現突然導致了大量高速飛機的產生，這種飛機減少了飛行人員的誤差幅度，而且在實際操作中也需要某套規則來保持每個飛行器的適當距離，并且能夠在空中安全地操作。　　單詞記憶　　it was only after the creation of the faa that full-scale regulation of americas airspace took place, and this was fortuitous, for the advent of the jet engine suddenly resulted in a large number of very fast planes reducing pilots margin of error and practically demanding some set of rules to keep everyone well separated and operating safely in the air.　　fortuitous adj. 偶然的

這個是個品牌一般是化妝品。

唯一。有一個特殊用法：倒裝的運用. Only + 狀語放句首，引起句子部分倒裝。Only by working hard can you pass the exam.

6，英語簡單語法 only 的在句中有哪幾種用法

1. if only見 if 2. not noly…but (also)不但…而且… 3. only for[方言]要不是，如果沒有 4. only if (或 only…if)決不…除非… 5. only just恰好，剛剛，剛才；好不容易才 6. only not簡直，幾乎，差不多 7. only that要不是，若非 8. only too a. 極，很，非常 b. 太；到令人遺憾的地步

一、only用作形容詞 1. 與the連用，意為“惟一的”，作定語。如： John is the only boy in his family. 約翰是家里惟一的男孩。 She is the only girl here who knows how to drive a car. 她是這兒惟一會開車的姑娘。 Jeremy is the only friend who lives near, all my other friends live far away. 杰里米是我惟一住得近的朋友，其余的朋友都住得很遠。 2. only可修飾復數名詞，意為“僅有的、惟一的一些”，作定語。如： They were the only people present. 出席的只有他們這些人。 3. 與an連用，意為“單獨的”，作定語。如： Jim was an only son of his parents. 吉姆是他父母的獨子。 4. 與the連用，意為“最好的、最適當的”，作定語。如： She is the only person for the job. 她是做這項工作的最佳人選。 He is the only man for me. 對于我來說，他是最合適的人。 The only thing to do on a hot day is to go swimming. 在熱天最理想的事就是去游泳。二、only用作副詞 1. 常位于所修飾的動詞、短語或從句前，意為“只是、僅僅”。如： At present we can only wait and see. 目前我們只好等一等看。 I only touched it. 我只不過摸了它一下。 I only regret that I have but one life to lose for my country. 我惟一遺憾的是：我僅有一次生命可以貢獻給我的祖國。 He only walks to save moneyhe doesn”t really like walking. 他只是為了省錢而步行，并不是真正喜歡步行。 Father gave me this computer only for my birthday. 只是因為我過生日，父親才送給我這臺電腦。 My sister is in bed only because she is ill. 我姐姐在床上躺著，僅僅是因為她病了。 2. 意為“反而”。如： Failure only strengthened our determination. 失敗反而使我們的決心更堅定了。 3. only和不定式連用常構成結果狀語，表示與預料相反的結果，意思是“竟然……、結果……”。如： He studied hard only to fail in the exam. 他這么用功，竟然在考場上失利。 He rushed all the way to the station only to miss the train. 他一路沖往車站，結果還是錯過了火車。 My wife went home in a hurry only to find the door locked. 我妻子急忙回到家，結果卻發現門鎖著。 He tried a second time only to fail again. 他再試一次，竟然還是失敗了。三、用作并列連詞用作并列連詞時，意為“但是、可是、可惜、不過”。如： This dictionary is just what I want, only it costs too much. 這本詞典正是我想要的，但是太貴了。 He is always ready to promise help, only he never keeps his promise. 他總是輕易許諾提供幫助，但是他從不遵守諾言。 The flowers are lovely, only they have no scent. 這些花朵很好看，可異沒有香氣。 I would do it with pleasure, only I am too busy. 我倒是很高興去做，可是我太忙了。 You may come at any time, only you had better let me know beforehand. 你什么時候來都行，不過最好先告訴我一聲。四、only在句中的位置 only在句中的位置不同，會使全句的意思或著重點有所不同，一般來講，only應緊接在它所修飾的詞之前。試比較： Only Tom watches TV at home on Sunday. 只有湯姆星期天在家看電視。（修飾主語） Tom only watches TV at home on Sunday. 湯姆星期天在家只是看電視。（修飾謂語） Tom watches only TV at home on Sunday. 湯姆星期天在家看的只是電視。（修飾賓語） Tom watches TV only at home on Sunday. 湯姆星期天只是在家看電視。（修飾地點狀語） Tom watches TV at home only on Sunday. 湯姆只是星期天在家看電視。（修飾時間狀語）五、only與倒裝語序 only所修飾的副詞、介詞短語或狀語從句位于句首時，要用倒裝語序。如： Only then did I realize the importance of health. 到那時我才認識到健康的重要性。 Only thus can we finish the task ahead of time. 只有這樣我們才能提前完成任務。 Only in this way can you learn from your mistakes. 只有用這種方式你才能從你的錯誤中吸取教訓。注意：only修飾主語時，句子不需要倒裝。 Only he knows the truth. 只有他知道真相。 Only socialism can save China. 只有社會主義才能救中國。 Only she understood him. 只有她才理解他。 Only very careful readers can find this mistake. 只有非常細心的讀者才會發現這個錯誤。六、only的習慣用法 1. only too意為“很、非常、實在”。如： We are only too pleased to watch this TV play. 我們非常喜歡看這部電視劇。 The news was only too true. 這消息是極其真實的。 I am only too glad to help you. 我實在很高興幫助你。 2. only just（加強just的語氣）意為“好容易、剛才、剛剛”。如： The plane has only just taken off. 飛機剛剛才起飛。 I was only just in time for supper. 我好容易趕上吃晚飯。 3. if only意為“但愿、要是……就好了”，常引導虛擬語氣的條件句或感嘆句。如： If only we had arrived in time, we would not have missed the train. 要是我們按時到，就不會誤車了。 If only I were younger! 要是我年輕些就好了。 If only it would stop raining! 但愿雨停下來。注：if only有時也可以引導陳述語氣的真實條件句，意為“只要……”。如： If only it clears up, we”ll go. 只要天一放晴，我們就去。 4. only if引導陳述語氣的真實條件句，意為“只要”。如： Only if you study hard, you will pass the exam. 只要你努力學習，就會通過考試。 5. not only…but also…意為“不但……而且……”。如： Lu Xun was not only a great writer, but also a great thinker. 魯迅不但是個偉大的文學家，而且是個偉大的思想家。注：使用not only…but also的幾個要點：（1）連接主語時，謂語動詞要與鄰近的主語保持一致。如： Not only he but also I have been to the Great Wall. 不但是他而且我也到過長城。（2）連接謂語時，not前不可有助動詞。如： I not only heard it, but also saw it. 我不但聽見，而且親眼看見了。 He not only said it, but also did it. 他不但說了，而且也做了。（3）連接除主語外的其他成分時，如果位于句首，not only后的主謂需要倒裝，但but also后的主謂不能倒裝。如： Not only has he been to Canada, but also he knows some Canadians. 他不但去過加拿大，而且認識一些加拿大人。 6. one and only意為“惟一的”。如： It is my one and only hope.