条件状语从句引导词有

[怎么区别汉语中的定语和状语]汉语定语 1.在汉语中，定语常由形容词、数量词、名词、代词充当，也可有其他词或短语充当。例如：（和暖）的阳光照着（平静）的湖水。（形容词作定语）我给大家讲（一个）故事。（数量词作定语）（今...+阅读

条件状语从句引导词有

unless = if...not. e.g. Let's go out for a walk unless you are too tired. If you are not too tired, let's go out for a walk. if 引导的条件句有真实条件句和非真实条件句两种：真实条件句，如：If it rains tomorrow, we won't go on a picnic. 非真实条件句是虚拟语气的一种，表示与事实相反，如： If I were you, I would go with him. so/as long as只要由as (so) long as, in case引导。 So long as you're happy, it doesn't matter what you do. 只要你高兴，你做什么都没有关系。 You may borrow my book as long as you keep it clean. 只要你保持书的清洁，你就可以把我的书借去。 Take your umbrella in case it rains. 带着你的伞吧，以防下雨。条件状语从句引导条件状语从句的连词有：if（如果），unless（除非；如果不），as long as（除非；只要），supposing（假设），on condition that（条件是），in case（如果）。【例】 You can't learn English well unless you work hard. 除非你努力学习，否则你学不好英语。 You can use my bike on condition that you return it by Friday. 你可以使用我的自行车，条件是你星期五以前还。 1）学习条件状语从句应注意以下几点：

（1）条件状语从句中一般不使用将来时态，尽管主句使用将来时态，而从句用一般现在时或现在完成时。【例】 I will come to see you if I have time. 我有时间，我就来看你。 If the rain stops, I shall go out for a walk. 如果雨停了，我就出去散步。

（2）注意条件状语从句在虚拟语气中的使用。【例】 If I were to I should first of all get the experts to discuss the plan. 如果我真的想做这事，我首先会找专家们讨论我的计划。

（3）条件状语从句中的省略。【例】 Come tomorrow if possible. 可能的话，明天来。 I will buy a DVD set if necessary

条件状语从句的特征

条件状语从句：表示条件或要求性质的状语从句例句： 1)I can lend you the bike on condition that you return it on time我可以把自行车借给你，但条件是你必须限期归还（on condition that you return it on time是条件状语从句） 2)You'll fail if you don't work hard如果你不努力就会失败（if you don't work hard是条件状语从句）引导词有：if,unless,so(as)long as,on condition that（只要）等连接词主要有 if, unless, as/so long as, on condition that 等。. if 引导的条件句有真实条件句和非真实条件句两种。非真实条件句已在虚拟语气中阐述。 unless = if not. Let's go out for a walk unless you are too tired. If you are not too tied, let's go out for a walk. 典型例题 You will be late ___ you leave immediately. A. unless B. until C. if D. or 答案A。句意：除非你立即走，否则你就回迟到的。

可转化为 If you dong leave immediately, you will be late. B、D句意不对，or表转折，句子如为 You leave immediately or you will be late. 引导条件状语从句最常用的连词是if，由if引导的条件状语从句表示在某种条件下某事很可能发生。如： If you ask him, he will help you.如果你请他帮忙，他会帮你的。 If you fail in the exam, you will let him down.如果你考试不及格，你会让他失望的。另外，if从句还表示不可实现的条件或根本不可能存在的条件，也就是一种虚拟的条件或假设，从句多用一般过去时或过去完成时。如： If I were you, I would invite him to the party.如果我是你，我会邀请他参加聚会。 I would have arrived much earlier if I had not been caught in the traffic.如果没有堵车，我会到的早一点儿。那么，除了if之外，是否还有其他连词也可以引导条件状语从句呢？回答是肯定的，不仅有，还有很多。

这些词由于出现的频率较小，且用法较复杂一些，所以不如if为大家所熟知罢了。下面就这些词的用法以例句的形式进行一下简单总结。 1. unless conj.除非，若不，除非在……的时候 You will fail to arrive there in time unless you start earlier.如果你不早点动身，你就不能及时赶到那儿。 Unless it rains, the game will be played.除非下雨，比赛将照常进行。 2. on condition(that)...在……条件下，如果 on condition (that)...引导的条件从句是主句事件发生的前提条件或唯一条件。 I can tell you the truth on condition that you promise to keep a secret.我可以告诉你真相，条件是你答应保守秘密。 You can go swimming on condition (that) you don't go too far from the river bank.你只有在不远离河岸的条件下才可以下水游泳。 3. supposing conj.如果，假如 supposing引导的条件从句表示一种假设条件。

Supposing it rains, shall we continue the sports meeting？倘若下雨，我们的运动会还要继续举行吗？ Supposing something should go wrong, what would you do then？假如出了什么问题，你准备怎么对付？ 4. provided conj.假如，除非，以……为条件 provided (that) +从句表示一种假设条件。 He will sign the contract provided we offer more favorable terms.如果我们提出更优惠的条件，他就会在合同上签字。 He won't be against us in the meeting provided that we ask for his advice in advance.如果我们提前征求一下他的意见，他就不会在会上反对我们。从上述例句可以看出if, unless, on condition (that), supposing, provided等词引导的条件状语从句，主从句条件关系分明，结构清晰。但有些句子，虽没有含条件关系的连词，却也隐含着条件关系，这些句子常用一些词，如but for, without等引出一个介词结构来表示条件，条件常常是虚拟的，或与事实相反的假设。

如： but for若非，要不是 But for the rain, we should have a pleasant journey.要不是下雨，我们的旅行肯定会很愉快。 But for your help,we should not have finished in time.要不是你帮忙，我们肯定不能及时完成任务。

条件状语从句连接词后跟什么句型

条件状语从句连接词后跟主语加谓语的陈述句语序的句型。条件状语从句（adverbial clause of condition）表条件，条件有真实条件和非真实条件两种。前者表现实的或可能变为现实的条件，后者表非现实的或不可能或不大可能变为现实的条件。这里只讨论真实条件。真实条件状语从句用直陈语气，其关联词有if,unless,suppose,supposing (that),assuming (that),providing (that),provided (that),in the event (that),just so (that),given (that),in case (that),on condition (that),as (so) long as等。这种状语从句可置于主句之前或之后。如：If the weather is fine tomorrow, we shall go to the country. 如果明天天晴，我们就到乡下去。He won't finish his work in time unless he works hard. 除非他努力干，否则他就不会按时把他的活干完。（unless表示否定的条件，如果不，除非） Suppose they did not believe him what would they do to him？如果他们不信任他，他们会对他怎么样？Supposing he can't come, who will do the work？如果他不能来，这事谁来干。

Assuming that you are right, we'll make a great deal of money from the project. 假定你是正确的，那我们将会从这项工程中赚得许多钱。Providing (that) there is no opposition, we shall hold the meeting here. 如果没有人反对，我们就在这里开会。She will go provided her friends can go also. 如果她的朋友们也能去，她就去。In the event that our team wins, there will be a celebration. 如果我们队胜了，那就要庆祝一番。He doesn't mind inconveniencing others just so he's comfortable. 他只要自己舒服，别人不方便他就不管了。Given that they're inexperienced, they've done a good job. 考虑到他们缺乏经验，他们的工作已做得很好。In case it rains, do not expect me. 如若下雨，就不要等我了。You may borrow the book, on condition that you do not lend it to anyone else. 你可以把这本书借走，只要你不把它再借给别人。

You may use the room as long as you clean it afterward. 你可以随意用这个房间，只要你用完后弄干净就行。英语中有一种条件状语从句与主句并无直接关系，这种从句叫做间接条件从句。如：She's far too considerate, if I may say so. 如我可直言，她太体谅人了。（=I am telling you, if I may, that she's too considerate.）英语中还有一种修辞性条件状语从句。如：If you believe that, you'll believe anything. 你如果相信此话，你将无话不信。（=You certainly can't believe that.） if从句可省去其与主句相同的部分。如：I'm happy if you are. 你高兴我就高兴。（if从句省去happy） if从句常可省去主语和连系动词或助动词be。如：Send the goods now if ready. 货物如已备好，请即送来。（if从句省去they are） If necessary, ring me at home. 必要时可打电话到我家找我。

（if从句省去it is） if常和某些不定代词构成省略结构。如：If anyone, he knows. 如有人知，那就是他了。There are few people nowadays, if any, who remember him. 当今记得他的人，如有的话，也不多了。He seems to have little, if anything, to do with this. 若要说他和这事有关的话，那也似乎是很少的。