,金牌学案,广东教育出版社（全国优秀出版社,全国百佳图书出版单位）,中考总复习全程指导,英语,返回,金牌学案,惠通图书策划工作室,制作,中考总复习全程指导,英语,考纲考点梳理,状语从句,考点内容透析,典型例题分析,中考真题链接,模拟演练,考纲考点梳理状语从句 考点内容透析典型例题分析中考真题链接模,在复合句中修饰主句中的动词、形容词和副词等的从句，叫状语从句。语序都应该用陈述语序。其主要考查点是要掌握时间、地点、原因、条件、目的、结果、让步、方式、比较等各类状语从句的用法及特点。,在复合句中修饰主句中的动词、形容词和副词等的从句，叫状语从句,时间状语从句,时间状语从句的引导词有：,when,as,while,till/until,as soon as,after,before,since,by the time,等。如：,I went to bed after the TV play was over.,电视剧完了以后我上床睡觉。,The train had left before he got to the station.,在他到车站之前，火车就已经开走了。,Could you look after her while we,re away?,我们不在时你能照顾她吗？,She has taught in this school since she came here.,自她来到这里以来，她就一直在这所学校教书。,Wait until I come back,，,please.,请你等到我回来。,时间状语从句时间状语从句的引导词有：when,as,wh,原因状语从句,原因状语从句的引导词有：,because,，,as,，,since,等。如：,He sold the car because it was too small.,他卖掉那辆小汽车，因为它太小了。,Since you won,t help me,I must do the job myself.,既然你不帮我忙，我必须自己做这项工作。,As it was raining hard,they had to stay at home.,由于正下大雨，他们不得不呆在家里。,原因状语从句原因状语从句的引导词有：because，as，s,条件状语从句,条件状语从句由,if,，,unless(,if.not),，,as long as,等连词引导。条件状语从句中的动词多用一般现在时表示将来。如：,If you run faster,，,you,ll catch up with him.,如果你跑得快点，你就会赶上他。,I won,t go unless he asks me.,除非他请我，否则我是不会去的。,You may borrow the book as long as you return it on time.,你可以借这本书，只要你准时归还。,条件状语从句条件状语从句由if，unless(if.,地点状语从句,地点状语从句由,where,wherever,等引导。如：,I,d like to go the place where the air is fresh.,我想去空气清新的地方。,Wherever we go,we must learn from others.,无论我们去哪里，我们都必须向别人学习。,比较状语从句,主要由,than,，,as.as.,，,the.the.,引导。如：,I feel better now than(I was)before.,我现在觉得比以前好了。,He writes as well as you(do),他写得和你一样好。,地点状语从句地点状语从句由where,wherever等引,结果状语从句,结果状语从句由,so that,，,so/such.that,引导。如：,He lost his bike so that he couldn,t come to school on time.,他丢了自行车，所以不能准时到校。,Your shirt was so dirty that you must wash it.,你的衬衣这么脏，你应该把它洗洗。,She is such a beautiful girl that we all like her.,她是一个如此漂亮的女孩以至于我们都喜欢她。,目的状语从句,目的状语从句由,so that,in order that,引导。如：,I got up early so that/in order that I could catch the early bus.,我很早起床，以便能赶上早班车。,结果状语从句结果状语从句由so that，so/such.,让步状语从句,让步状语从句一般用,though,，,although,，,even though/if,来引导。如：,Though/Although he tried hard,he was not successful.,他虽然努力尝试，但没有成功。,He went on working though it was very late.,虽然很晚了，他还在继续工作。,注意,：,though,although,不能和,but,同时用在一个句子中。,让步状语从句让步状语从句一般用though，although,“,主将从现类,”,的状语从句,由,“,when,，,as soon as,，,till/until,，,after,，,before,”,等引导的时间状语从句；由,“,if,，,unless,，,as long as,”,等引导的条件状语从句以及由,“,though/although/even if(though),”,等引导的让步状语从句。如果主句的谓语动词为一般将来时、含有情态动词或主句是祈使句时，从句中的谓语动词用一般现在时表将来，即,“,主将从现,”,。如：,He,ll write to me as soon as he reaches Beijing.,他一到北京就会写信给我。,Don,t get off the bus until/before it stops.,要等公交车停了才能下车。,I will try it,though I may fail.,即使失败，我也要试一下。,“主将从现类”的状语从句由“when，as soon as，,when,，,while,，,as,引导时间状语从句的区别,1,when,的用法：既可指时间点，也可指时间段。,从句中的动词可以是短暂性动词，也可以是延续性动词。主句和从句的动作同时发生,(,此时主句常用过去进行时，从句用一般过去时,),，或从句的动作发生在主句的动作之前或之后。如：,Mary was eating when I saw her.,当我看见玛丽的时候，她正在吃东西。,The train had left when they got to the station.,当他们到达火车站的时候，火车已经开走了。,2,while,的用法：,while,指一段时间。从句中的动词必须是延续性动词。从句的动作与主句的动作同时发生,(,主从句都用过去进行时,),。意为,“,但是，然而,”,，表转折。,when，while，as引导时间状语从句的区别1when,While it was raining,they went out.,正在下雨的时候，他们出去了。,I was reading while my brother was drawing.,我弟弟在画画的时候，我在看书。,I like English while he likes math.,我喜欢英语，而他喜欢数学。,注意,：有时,when/while,可以互换。如：,When/While Linda was watching TV,the doorbell rang.,当,Linda,在看电视的时候，门铃响了。,3,as,的用法：,as,表示,“,一边,一边,”,，强调从句的动作伴随主句的动作发生，可接延续性动词，也可接短暂性动词。如：,They sang songs as they walked along the river.,他们一边沿着河边走，一边唱着歌。,While it was raining,they wen,till,和,until,的区别,1,若主句的谓语动词为延续性动词，用肯定式或否定式皆可，只是意思不同。如：,They worked till it was dark.,他们一直工作到天黑。,They didn,t work until it was dark.,直到天黑他们才开始工作。,2,若主句的谓语动词为非延续性动词，则主句要用否定式，从句用肯定式。如：,The bus won,t start until everybody gets on.,公共汽车直到每个人都上车后才发动。,till和until的区别1若主句的谓语动词为延续性动词,because,，,as,，,since,，,for,的用法区别,because,，,as,，,since,，,for,都是表示,“,理由,”,的连词，但用法有区别。,1,because,回答,why,引导的问句，语气最强。如：,Why was he absent?,他为什么缺席？,Because he was badly ill.,因为他病得很重。,2,as,，,since,表理由是已知的，而理由以外才是叙述的重点，两者皆多用于句首，但要注意,since,重形式，,as,多表示理由以外的才是重点。如：,As we,re young,we must learn from teachers.,由于我们年轻，我们必须向老师学习。,because，as，since，for的用法区别becau,Since you need the book,you may take it.,既然你需要这本书，你可以拿走。,3,for,不用于句首，而用于主句之后，补充说明理由；主句表推测时，用,for,说明原因。如：,I,ll follow his advice,for he is a doctor.,我会听从他的劝告，因为他是医生。,注意,：,because of,也是表示原因状语，但后面只能跟短语。如：,I had to stay at home because of the bad weather.,因为天气不好我只好呆在家里。,Since you need the book,you m,Tom wants to know if you will have a picnic tomorrow.,Yes.But if it _,，,we,ll play chess instead.(,),A,will rain B,rained,C,is raining D,rains,解析：,if,引导的条件状语从句，主句用将来时，从句用一般现在时。故选,D,。,答案：,D,Tom want,I,ll give it to Jim as soon as I _ him tomorrow.(,),A,saw B,will see,C,see D,have seen,解析：,本题考查时间状语从句的时态。,as soon as,表示,“,一,就,”,，其主句用将来时态，从句要用一般现在时态。故选,C,。,答案：,C,Ill give,You can,t watch TV _ you finish your homework.(,),A,before B,if C,while D,as,解析：,本题考查词义辨析。,A,项意为,“,在,之前,”,；,B,项意为,“,假如；即使,”,；,C,项意为,“,当,时候,”,；,D,项意为,“,因为,”,。句意为,“,你不能看电视在你完成作业之前,”,。故选,A,。,答案：,A,You cant wat,So you were in the supe