loading...
[PPT模板]梅毒那些事,一键免费AI生成PPT,PPT超级市场PPT生成 [PPT模板]梅毒那些事,一键免费AI生成PPT,PPT超级市场PPT生成 [PPT模板]韩国和四川的美食比较,一键免费AI生成PPT,PPT超级市场PPT生成 [PPT模板]胆囊结石病人的护理,一键免费AI生成PPT,PPT超级市场PPT生成 [PPT模板]梅毒那些事,一键免费AI生成PPT,PPT超级市场PPT生成 [PPT模板]入团第一课,一键免费AI生成PPT,PPT超级市场PPT生成
小学奇数
be301e79-5db4-44ba-9ae6-c61363e2da08PPT
Hi,我是你的PPT智能设计师,我可以帮您免费生成PPT

高中状语从句PPT

状语从句的概念状语从句即指句子用作状语时,起副词作用的句子。它可以修饰谓语、非谓语动词、定语、状语或整个句子。根据其作用可分为时间、地点、原因、条件、目的...
状语从句的概念状语从句即指句子用作状语时,起副词作用的句子。它可以修饰谓语、非谓语动词、定语、状语或整个句子。根据其作用可分为时间、地点、原因、条件、目的、让步、方式和比较等从句。状语从句一般由连词(从属连词)引导,也可以由词组引起。从句位于句首或句中时通常用逗号与主句隔开,位于句尾时可以不用逗号隔开。状语从句的分类1. 时间状语从句时间状语从句通常由when, while, as, after, before, since, until, till, once, as soon as等引导。例如:We'llgo for an outing when the weather is fineWhile I was doing my homeworkmy brother was watching TVAs soon as I finish this workI'll go home2. 地点状语从句地点状语从句通常由where, wherever等引导。例如:Go back where you came fromWherever you goyou should work hard3. 原因状语从句原因状语从句通常由because, since, as, for等引导。例如:He didn't come because he was illSince you are so interested in itI'll tell you all about itAs it was rainingwe stayed at home4. 条件状语从句条件状语从句通常由if, unless, as long as, provided that, in case等引导。例如:If it doesn't rain tomorrowwe'll go for a picnicUnless you tell me the truthI won't help youAs long as you work hardyou will succeed5. 目的状语从句目的状语从句通常由so that, in order that, for等引导。例如:He studied hard so that he could pass the examShe spoke more loudly in order that everyone could hear herWe got up early for we could catch the first bus6. 让步状语从句让步状语从句通常由though, although, even if/even though, while, as等引导。例如:Although it was rainingthey still went out for a walkEven if you fail this timeyou can try again next timeWhile I承认他的优点我也不能忽视他的缺点7. 方式状语从句方式状语从句通常由as, as if, as though, the way等引导。例如:Do as I doHe talks as if he had been thereThe way he looks at me makes me uncomfortable8. 比较状语从句比较状语从句通常由than, as...as, not so/as...as等引导。例如:He is taller than meShe is as beautiful as her sisterThis book is not so interesting as that one状语从句的省略当状语从句的主语与主句的主语一致,且状语从句中含有be动词的某种形式时,状语从句的主语和be动词可以省略。例如:When (he is) in troublehe always asks me for helpIf (it is) possibleI'll come to see you tomorrowThough (he is) tiredhe still keeps on working状语从句的注意事项1. 引导词的选择在选择引导词时,要注意从句的性质和意思,以及从句与主句之间的关系。例如,表示原因的状语从句通常用because引导,而表示结果的状语从句则用so that或in order that引导。2. 从句的时态状语从句的时态要与主句的时态保持一致。例如,当主句是一般现在时时,时间状语从句和条件状语从句通常要用一般现在时表示将来;当主句是一般过去时时,从句则要用相应的过去时态。3. 从句的语序状语从句的语序通常是陈述句语序,即主语+谓语+其他成分。例如:He will come back when he finishes his workWe'llgo for a picnic if the weather is fine4. 避免使用重复的连词在同一个句子中,通常要避免使用重复的连词。例如,在一个复合句中,如果已经有一个连词引导了一个从句,那么在其他从句中就不要再使用这个连词了5. 注意从句与主句之间的逻辑关系状语从句与主句之间需要有明确的逻辑关系,这种关系应通过连词清晰地表达出来。例如,在条件状语从句中,连词if或unless用来表达一种条件关系;在因果状语从句中,连词because、since、as或so that等用来表达原因和结果的关系。6. 省略与替代在某些情况下,为了避免重复或简化句子结构,状语从句可以进行省略或替代。例如,当从句的主语与主句的主语相同时,从句的主语和系动词可以省略。(If it is) NecessaryI will do it(When he) Arrivedthe meeting had already begun7. 状语从句与其他从句的区别状语从句与其他从句(如定语从句、名词性从句)的主要区别在于其功能。状语从句在句中起状语的作用,用来修饰主句的谓语,而其他从句则可能作为句子的主语、宾语或表语。8. 复杂状语从句在一个句子中,可以有多个状语从句同时出现,形成复杂状语从句。在这种情况下,需要特别注意各个从句之间的逻辑关系以及连词的使用。If it rains hardwhich I think it will, we'll have to cancel the picnicAfter he had finished his homeworkwhich he did very quickly, he went out to play9. 状语从句与独立主格结构有时,为了避免使用状语从句,可以使用独立主格结构来表达相同的意思。独立主格结构由名词或代词加上非谓语动词、形容词、副词或介词短语构成,可以在句中起到状语的作用。He stood therehis eyes fixed on the horizon. (独立主格结构,相当于一个时间状语从句:While his eyes were fixed on the horizon, he stood there.)The meeting overwe all went home. (独立主格结构,相当于一个时间状语从句:After the meeting was over, we all went home.)10. 状语从句的修辞效果状语从句不仅可以用来表达各种逻辑关系,还可以通过不同的连词和句式选择来增强语言的修辞效果。例如,通过使用不同的条件状语从句,可以表达不同程度的假设或条件。If I had timeI would go with you. (使用虚拟条件句,表达一种不太可能实现的假设)Unless you work hardyou won't succeed. (使用否定条件句,强调条件的必要性)以上是关于高中状语从句的一些基本知识和注意事项。通过理解和掌握这些知识,学生可以更好地理解和运用状语从句,提高英语表达的准确性和丰富性。