only的用法，only的用法

1，only的用法

A 主将从现。条件状语从句用现在时，主句用将来时。only if为连词，只要。

only的用法

2，only的强调句用法

only后面跟状语时倒装。所谓的状语包括三种：副词，介词短语，状语从句例如：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的强调句用法

3，only的后面要加动词原形吗

only的后面不加动词原形。only的用法：1、only用作形容词(1)与the连用，意为“惟一的”，作定语。Eg：Mary is the only girl in her family. 玛丽是家里惟一的女孩。(2)与an连用，意为“单独的”，作定语。Eg：Jim is an only son of his parents. 吉姆是他父母的独子。(3)与the 连用，意为“最好的、最适当的”，作定语。Eg：She is the only person for the job. 她是做这项工作的最佳人选。2、only用作副词(1)常位于所修饰的动词、短语或从句前，意为“只是、仅仅”。Eg：We have no keys, so we can only wait for a while.我们没有钥匙，只好等一等。(2)意为“反而”。Eg：Failure only strengthed our determination.失败反而使我们的决心更坚定了。(3)only和不定式连用构成结果状语，表示与预料相反的结果，意思是“竟然……、结果……”。Eg：He tried a second time only to fail again.他再试一次，竟然还是失败了。3、only用作并列连词用作并列连词时，意为“但是、可是、可惜、不过”。Eg：This skirt is so beautiful, only it costs too much.这本词典正是我想要的，但是太贵了。扩展资料not only的用法：1、置于句首的Not only… but also仅连接两个并列词语，不可用倒装结构，如：Not only you but also I am fond of music只有当Not only… but also连接两个分句时，才在第一个分句用倒装结构。例如：Not only is he a teacher, but he is also a poet.他不仅是一位教师，而且是一位诗人。2、如果修饰主语就不能倒装。Only John was there-----因为only已经修饰主语了。She met only John there------Only John did she meet there------only修饰John放在句首就要倒装.

only部分倒装

only ＋动词不定式用作结果状语,表示与原来相像相反的或意想不到的结果，通常都是令人失望的结果。意为“不料…”、“反而…”、“结果却…”。“only ＋现在分词”也可作结果状语，但它通常表示一个自然而然的或意料之中的情况和结果。谓语动词和现在分词－ing之间是因果关系。

only只是一个副词就像never一样只是表达动作的一种程度或者方式与动词的时态和人称变化无关

不加情态动词后面才加

not only but also引导并列句，其后可以是整个句子也可以是句子的某一成分，不一定要用动词原形。举例：he not only has finished learning english,but also has already studied french.

only的后面要加动词原形吗

4，only倒装用法是什么

only 的用法 .only位于句首修饰壮语要倒装只有倒那时我才将会有机会实现我的梦想. will 是谓语的一部分因倒装提前了.再如 only in this way can you learn english well 是only引起的倒装句,will 是助动词,如果这个句子正过来说就是 I will have a chance of achieving my dream only then 在句首的only如果后面跟了副词、介词短语或从句等状语，则主句用倒装结构。如only后跟的是主语，就不用倒装结构了。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．（不倒装） Only five men were hurt in the accident．（不倒装）注意，only和所修饰的状语如果不在句首，则不倒装。如： The boy was helped out only when his father arrived in a hurry． Only then did he realize the importance of English 只有在那时候他才意识到英语的重要性。 only then ,是过一小会儿的意思，一般用在句首，引导倒装句。例句Only then did he realize the importance of English．解析：在句首的only如果后面跟了副词、介词短语或从句等状语，则主句用倒装结构。如only后跟的是主语，就不用倒装结构了。再比如 Only when the war was over in 1918 was he able to get back to work．(倒装句） Only five men were hurt in the accident．（不倒装）

only 放在句首，但修饰的不是状语而是主语时，不倒装。如： Only John is allowed to enter the lab. 只有约翰被允许进入实验室。 Only the boy himself knows what he is going to be. 只有这孩子本人知道他将来的前途。 6.以so 开头的句子。如果只是重复前面一句话的意思，不倒装。如： It was very cold yesterday.昨天很冷。 So it was.正是这样。 He did a good job. 他干的很出色。 So he did. 确实如此。 7.以 not only 开头的句子要倒装，但but also 后面的句子不倒装。如： Not only did he speak more correctly, but also he spoke more easily. 不仅他说得更准确，而且他说得也更轻松。 8.以 not until 开头的句子主句要倒装，没有助动词时要加助动词。如： Not until Mother came back did it stop raining. 直到妈

5，only有什么用法

only one 只有一个；唯一 only for 要是没有 only when 只有当…才能 only if 只要……就；只是在……的时候 only then 直到那时（后面的句子要倒装） 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.　　难点解析　　本句的难点在于对句子的逻辑关系的理解。首先要理解it was only after…that结构所表示的时间关系，并且要抓住连接词for所表示的整个句子的因果关系，以及子句中resuted in、reducing…and practically demanding…等词所表示的逻辑含义。　　我们可以理一下句中的逻辑关系：首先faa成立，然后是full-scale regulation出现，但是这只是巧合，原因是the advent of…，暗指the advent of…是真正the creation of the faa的原因。然后又介绍了the jet engine所带来的一系列影响(a large number of…)，这些影响又是如何导致进一步的影响(reducing pilots margin of…)和需求(demanding some set of rules)。把这些关键点找到了，句子的含义就明朗了。　　句子分析　　子句类型并列句　　连接词无逻辑连接词　　子句内容it was only after the creation of the faa that full-scale regulation of americas airspace took place.　　语法分析it was [强调结构] only after the creation of the faa [状语] that [强调结构] full-scale regulation of americas airspace [主语] took place. [谓语]　　子句翻译联邦航空管理局刚成立不久，完整的美国航空法规就诞生了。　　子句类型并列句　　连接词and　　子句内容this was fortuitous.　　语法分析this [主语] was [系动词] fortuitous. [表语]　　子句翻译这是巧合。　　子句类型状语从句　　连接词for　　子句内容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.　　语法分析the advent of the jet engine [主语] suddenly [状语] resulted in [谓语] a large number of very fast planes [宾语] reducing pilots margin of error [定语] and [连接词] practically demanding some set of rules [定语] to keep everyone well separated and operating safely in the air. [定语]　　子句翻译喷气式飞机的出现突然导致了大量高速飞机的产生，这种飞机减少了飞行人员的误差幅度，而且在实际操作中也需要某套规则来保持每个飞行器的适当距离，并且能够在空中安全地操作。　　全句翻译　　联邦航空管理局刚成立不久，完整的美国航空法规就诞生了，这只是巧合，因为喷气式飞机的出现突然导致了大量高速飞机的产生，这种飞机减少了飞行人员的误差幅度，而且在实际操作中也需要某套规则来保持每个飞行器的适当距离，并且能够在空中安全地操作。　　单词记忆　　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

这个是个品牌一般是化妆品。

唯一。有一个特殊用法：倒装的运用. Only + 状语放句首，引起句子部分倒装。Only by working hard can you pass the exam.

6，英语简单语法 only 的在句中有哪几种用法

1. if only见 if 2. not noly…but (also)不但…而且… 3. only for[方言]要不是，如果没有 4. only if (或 only…if)决不…除非… 5. only just恰好，刚刚，刚才；好不容易才 6. only not简直，几乎，差不多 7. only that要不是，若非 8. only too a. 极，很，非常 b. 太；到令人遗憾的地步

一、only用作形容词 1. 与the连用，意为“惟一的”，作定语。如： John is the only boy in his family. 约翰是家里惟一的男孩。 She is the only girl here who knows how to drive a car. 她是这儿惟一会开车的姑娘。 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远。 2. only可修饰复数名词，意为“仅有的、惟一的一些”，作定语。如： They were the only people present. 出席的只有他们这些人。 3. 与an连用，意为“单独的”，作定语。如： Jim was an only son of his parents. 吉姆是他父母的独子。 4. 与the连用，意为“最好的、最适当的”，作定语。如： She is the only person for the job. 她是做这项工作的最佳人选。 He is the only man for me. 对于我来说，他是最合适的人。 The only thing to do on a hot day is to go swimming. 在热天最理想的事就是去游泳。二、only用作副词 1. 常位于所修饰的动词、短语或从句前，意为“只是、仅仅”。如： At present we can only wait and see. 目前我们只好等一等看。 I only touched it. 我只不过摸了它一下。 I only regret that I have but one life to lose for my country. 我惟一遗憾的是：我仅有一次生命可以贡献给我的祖国。 He only walks to save moneyhe doesn”t really like walking. 他只是为了省钱而步行，并不是真正喜欢步行。 Father gave me this computer only for my birthday. 只是因为我过生日，父亲才送给我这台电脑。 My sister is in bed only because she is ill. 我姐姐在床上躺着，仅仅是因为她病了。 2. 意为“反而”。如： Failure only strengthened our determination. 失败反而使我们的决心更坚定了。 3. only和不定式连用常构成结果状语，表示与预料相反的结果，意思是“竟然……、结果……”。如： He studied hard only to fail in the exam. 他这么用功，竟然在考场上失利。 He rushed all the way to the station only to miss the train. 他一路冲往车站，结果还是错过了火车。 My wife went home in a hurry only to find the door locked. 我妻子急忙回到家，结果却发现门锁着。 He tried a second time only to fail again. 他再试一次，竟然还是失败了。三、用作并列连词用作并列连词时，意为“但是、可是、可惜、不过”。如： This dictionary is just what I want, only it costs too much. 这本词典正是我想要的，但是太贵了。 He is always ready to promise help, only he never keeps his promise. 他总是轻易许诺提供帮助，但是他从不遵守诺言。 The flowers are lovely, only they have no scent. 这些花朵很好看，可异没有香气。 I would do it with pleasure, only I am too busy. 我倒是很高兴去做，可是我太忙了。 You may come at any time, only you had better let me know beforehand. 你什么时候来都行，不过最好先告诉我一声。四、only在句中的位置 only在句中的位置不同，会使全句的意思或着重点有所不同，一般来讲，only应紧接在它所修饰的词之前。试比较： Only Tom watches TV at home on Sunday. 只有汤姆星期天在家看电视。（修饰主语） Tom only watches TV at home on Sunday. 汤姆星期天在家只是看电视。（修饰谓语） Tom watches only TV at home on Sunday. 汤姆星期天在家看的只是电视。（修饰宾语） Tom watches TV only at home on Sunday. 汤姆星期天只是在家看电视。（修饰地点状语） Tom watches TV at home only on Sunday. 汤姆只是星期天在家看电视。（修饰时间状语）五、only与倒装语序 only所修饰的副词、介词短语或状语从句位于句首时，要用倒装语序。如： Only then did I realize the importance of health. 到那时我才认识到健康的重要性。 Only thus can we finish the task ahead of time. 只有这样我们才能提前完成任务。 Only in this way can you learn from your mistakes. 只有用这种方式你才能从你的错误中吸取教训。注意：only修饰主语时，句子不需要倒装。 Only he knows the truth. 只有他知道真相。 Only socialism can save China. 只有社会主义才能救中国。 Only she understood him. 只有她才理解他。 Only very careful readers can find this mistake. 只有非常细心的读者才会发现这个错误。六、only的习惯用法 1. only too意为“很、非常、实在”。如： We are only too pleased to watch this TV play. 我们非常喜欢看这部电视剧。 The news was only too true. 这消息是极其真实的。 I am only too glad to help you. 我实在很高兴帮助你。 2. only just（加强just的语气）意为“好容易、刚才、刚刚”。如： The plane has only just taken off. 飞机刚刚才起飞。 I was only just in time for supper. 我好容易赶上吃晚饭。 3. if only意为“但愿、要是……就好了”，常引导虚拟语气的条件句或感叹句。如： If only we had arrived in time, we would not have missed the train. 要是我们按时到，就不会误车了。 If only I were younger! 要是我年轻些就好了。 If only it would stop raining! 但愿雨停下来。注：if only有时也可以引导陈述语气的真实条件句，意为“只要……”。如： If only it clears up, we”ll go. 只要天一放晴，我们就去。 4. only if引导陈述语气的真实条件句，意为“只要”。如： Only if you study hard, you will pass the exam. 只要你努力学习，就会通过考试。 5. not only…but also…意为“不但……而且……”。如： Lu Xun was not only a great writer, but also a great thinker. 鲁迅不但是个伟大的文学家，而且是个伟大的思想家。注：使用not only…but also的几个要点：（1）连接主语时，谓语动词要与邻近的主语保持一致。如： Not only he but also I have been to the Great Wall. 不但是他而且我也到过长城。（2）连接谓语时，not前不可有助动词。如： I not only heard it, but also saw it. 我不但听见，而且亲眼看见了。 He not only said it, but also did it. 他不但说了，而且也做了。（3）连接除主语外的其他成分时，如果位于句首，not only后的主谓需要倒装，但but also后的主谓不能倒装。如： Not only has he been to Canada, but also he knows some Canadians. 他不但去过加拿大，而且认识一些加拿大人。 6. one and only意为“惟一的”。如： It is my one and only hope.