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1、2020届高考英语二轮复习语法突破13【状语从句】高考英语状语从句用法速查速记考点一时间状语从句一、when, while和as引导的时间状语从句when从句谓语动词为延续性动词或非延续性动词。从句的动作和主句的动作可以同时发生，也可以先后发生while从句的谓语动词为延续性动词。从句的动作与主句的动作同时发生as从句谓语一般为延续性动词。从句的动作与主句的动作同时发生或交替进行，可译为“一边，一边；随着”例：While some people are motivated by a need for success, others are motivated by a fear of fail
2、ure. 当一些人被成功的渴望所驱动的时候，另一些人却被失败的恐惧所驱动着。As the average age of the population increases, there are more and more old people to care for.随着人口平均年龄的增长，有越来越多的老年人需要照顾。二、表示“一就”的连词引导的时间状语从句1as soon as, the moment, the minute, the instant, immediately, directly, instantly例：The moment my aunt gained her diploma
3、 after four years of hard work, she was filled with joy.我阿姨苦读四年之后获得了文凭，那一刻她欣喜万分。2在hardly.when., no sooner.than.结构中，主句用过去完成时，than或when所在的从句用一般过去时。例：I had hardly got to the office when my wife phoned me to go back home at once.我刚到办公室，妻子就打电话让我立刻回家。三、before和since引导的时间状语从句1before表示“在之前；还未就；还没有来得及就”。常用句式：
4、It will be/was一段时间before.过了时间才；It wont be/wasnt一段时间before.没过多久就例：We need to get to the root of the problem before we can solve it.在我们解决问题之前，我们需要找到问题的根源。If you miss this chance, it may be years before you get another one.如果你错过了这次机会，可能需要很多年你才能再获得一次。2since意为“自从以来”，常用句式：It is/has been一段时间since从句(常用过去时)。
5、since从句的时态若是一般过去时，主句的时态常用现在完成时或一般现在时。例：As is reported, it is/has been over 100 years since Tsinghua University was founded.正如所报道的，自清华大学建立以来已有一百多年了。四、till/until引导的时间状语从句until/till用于肯定句表示“直到为止”，其主句谓语动词必须为延续性动词；not.until/till.表示“直到才”，not所在的主句的谓语动词必须为非延续性动词。until可用于句首，而till不能。例：If you dont understand so
6、mething, you may research, study, and talk to other people until youfigure it out.如果你遇到不懂的东西，可以搜索、研究以及和其他人交谈，直到你把它弄明白。来源:学|科|网She didnt start the lesson until the pupils settled down.等学生们安静下来后，她才开始上课。五、every time, each time, next time, the first time, by the time等引导的时间状语从句例：By the time you have fini
7、shed this book, your meal will get cold.等你看完这本书，你的饭就凉了。考点二让步状语从句一、although, though, as和while引导的让步状语从句例：Although these measures are not effective forever, they are vital for now.虽然这些措施并不能永远有效，但它们目前是至关重要的。Hot as/though the night air was, we slept deeply because we were so tired after the long journey.
8、夜晚的空气虽然很热，但因为长途旅行之后很累，我们睡得很沉。注意：(1)although引导的从句不倒装；though引导的从句可用倒装语序，也可不倒装；as引导的从句必须用倒装语序： 表语/状语/动词原形as/though主语其他，若表语是可数名词单数，前置时要省略冠词。(2)though可用作副词，意为“然而”，表转折，置于句末。(3)while引导让步状语从句，只能置于句首。 二、even if和even though 引导的让步状语从句even if/even though引导让步状语从句时，表示语气更强的让步，意为“即使，即便”。例：Tim is in good shape physi
9、cally even if/even though he doesnt get much exercise.尽管蒂姆不怎么锻炼，但体形很好。三、“疑问词ever”引导的让步状语从句(what, who, whom, when, where, which, how)ever 表示“无论”，引导让步状语从句时，相当于no matter(what, who, whom, when, where, which, how)。例：It is generally considered unwise to give a child whatever he or she wants.总的来说，孩子想要什么就给什
10、么是不明智的。However/No matter how hard you try, it is difficult to lose weight without cutting down the amount you eat.不管你多么努力尝试，如果不减少你的饭量，减肥是很困难的。注意：whatever, whoever, whomever, whichever还可引导名词性从句。 四、whether.or.引导的让步状语从句whether.or.意为“无论还是”，提供两种对比情况。例：All people, whether they are old or young, rich or po
11、or, have been trying their best to help those in need since the disaster.所有人，无论衰老还是年轻，富裕还是贫穷，都一直在尽他们所能帮助灾后需要帮助的 人们。考点三其他状语从句状语从句来源:Z.xx.k.Com连词条件状语从句if, unless(if.not), so/as long as, on condition that, in case, suppose/supposing, provided/providing来源:学|科|网Z|X|X|K原因状语从句because, as, since, now that,
12、considering that目的状语从句so that, in order that, in case结果状语从句so that, so.that., such.that.地点状语从句where, wherever方式状语从句as, as if/as though比较状语从句than, as.as., not as/so.as.例：Unless you can sleep well, you will lose the ability to focus, plan and stay motivated after one or two nights.除非你睡得好，否则一两个晚上之后，你会失
13、去专注、计划和保持动力的能力。Located where the Belt meets the Road, Jiangsu will contribute more to the Belt and Road construction.江苏位于“带”和“路”交汇处，将会对“一带一路”的建设做出更大的贡献。Just as a single word can change the meaning of a sentence, a single sentence can change the meaning of a paragraph.正如单个单词可以改变一句话的意思那样，单个句子也能改变一段文字的
14、意思。He had his camera ready in case he saw something that would make a good picture.他准备好了照相机，以便他看到好的东西就拍下来。析三大从句，辨七大易混点易混点(一)定语从句和并列句1She has many novels, some of are interesting.2She has many novels, and some of are interesting.分析1.whichwhich引导定语从句，修饰先行词novels, “some of which”在从句中作主语。2.them此句为and引导的
15、并列句。点拨定语从句与并列句的主要区别：句中若有and, but, so等并列连词或分号则为并列句，此时不需要再填引导词。易混点(二)定语从句和状语从句1(1)We young people should go to the place is in need of help.(2)We young people should go were most needed.分析(1)which/that关系代词which/that引导定语从句，修饰先行词“the place”，且在从句中作主语。(2)wherewhere引导地点状语从句，修饰主句谓语动词go。点拨定语从句与地点状语从句的主要区别：定语从句有表示地点的先行词，而地点状语从句则没有；定语从句修饰的是先行词，地点状语从句修饰的是谓语动词。2(1)I will always remember the days
