资源描述
第39讲 状语从句,广西专用,外研版,中考主要考查时间、原因、条件、比较、结果和让步状语从句的基本用法,尤其应注意当主句为一般将来时时,时间和条件状语从句用一般现在时表将来。,高频考向一 表时间和原因的状语从句 时间状语从句表示主句动作发生的时间。引导这种从句的连词有when,before,after,as,while,till,until,since等;起连接作用的短语有as soon as等。在时间状语从句中,当主句是一般将来时或祈使句表示将来的意义时,时间状语从句用一般现在时表将来。如: Ill let you know as soon as she comes.她一来,我就会让你知道。 Jane didnt go to bed until she finished her homework.简直到完成作业后才睡觉。 原因状语从句用来说明原因。引导这种从句的连词有because,since,as等。这三个词的语气由because到as逐渐减弱;because回答why提出的问题。如: I wont go with you because I am busy doing my homework now.我不会跟你去,因为现在我正忙着做作业。 As the weather was fine,we decided to play football.天气很好,我们决定去踢足球。,【例1】Our Chinese teacher didnt go to bed _ he finished his work last night.(2016,重庆) Aif Buntil Csince Dbecause 解析:句意为“昨天晚上我们的语文老师直到完成了他的工作才去睡觉。”if“如果”;until“直到”;since“自从”;because“因为”。 答案:_ 【例2】 Mark isnt coming to the concert _ he has got too much work to do.(2016,桂林模拟) Aso Buntil Calthough Dbecause 解析:so“因此”;until“直到”;although“虽然”;because“因为”。“太多工作要做”是“没有来音乐会”的原因。 答案:_,B,D,高频考向二 表条件和让步的状语从句 条件状语从句常用连词if,unless等引导。当主句是一般将来时或祈使句表示将来的意义时,if,unless引导的条件状语从句用一般现在时表将来。如: Will you come if he comes here?如果他来,你会来吗? If it rains tomorrow,well stay at home.如果明天下雨,我们会待在家里。 让步状语从句常用连词though,although引导。注意though/although与but在句中不能同时出现。如: We had to go on walking though we were really tired.尽管我们确实很累了,但是我们不得不继续走。 Although he is not rich,he lives happily.尽管他不富有,但是他生活得很幸福。,【例3】You bought the car about ten years ago? Yes._ its old,it still runs well. ABecause BSince CAlthough DBut 解析:考查让步状语从句。句意为“尽管旧了,但它仍然运转很好”。because“因为”,since“既然”,although“尽管”,but“但是”。 答案:_ 【例4】 I enjoy fresh air so I always let the window open _ it is really cold.(2017,南宁预测) Aunless Bwhen Cif Dsince 解析:句意为“我喜欢新鲜空气,因此我总是让窗户开着,除非真的很冷。”故unless“除非”符合题意。 答案:_,C,A,【例5】Mary,could you tell me if your mother _ our school sports meeting tomorrow?(原创题) I think she will come to school if she _ free. Awill take part in;will be Btakes part in;is Cwill take part in;is Dtakes part in;will be 解析:考查if引导的宾语从句及条件状语从句的用法。问句中是由if引导的宾语从句,时间状语为 tomorrow,故用一般将来时;答语中是由if引导的条件状语从句,主句用将来时,从句用一般现在时。 答案:_,C,高频考向三 表目的和结果的状语从句 目的状语从句表示主句的动作发生的目的,这种从句用连词so that,in order that等引导。so that或in order that引导的目的状语从句中常常要用情态动词may,might,can,could,will,would或should等。如: Please speak loudly so that everyone can hear you.请大声说,以便每个人听见你说的话。 He got up very early this morning in order that he could catch the first bus.为了能赶上第一班公交车,他早上起得很早。 结果状语从句表示主句的动作所引起的结果,这种从句由such.that,so.that,so that等引导。such修饰名词;而so修饰形容词或副词。如: The film isnt so interesting that nobody likes it.这部电影不是那么有趣,没人喜欢它。 It was such a cold day that nobody wanted to go out.天气那么冷,没人想出去。,【注意】so.that.句型的否定形式可用简单句too.to.或not.enough to代替。如: He is so young that he cant go to school. He is too young to go to school. He is not old enough to go to school.他太小了,不能去上学。,【例6】You study _ hard _ youre sure to pass the exam. Thank you for saying so.(2015,福州) Aenough;to Bas;as Cso;that 解析:enough.to“足够做”;as.as.“和一样”;so.that.“如此以至于”。第一句句意为“你学习如此努力以至于你肯定能通过考试。”“谢谢你这么说。” 答案:_,C,【例7】I looked through my test paper again and again _ I wouldnt make any mistakes.(2016,威海) Aso Bbecause Cso that 解析:so意为“所以,因此”,表结果。because意为“因为”,引导原因状语从句。so that意为“为的是,以便”时,引导目的状语从句;意为“因此”时,引导结果状语从句。根据空格前的“我浏览了我的试卷一遍又一遍”可推知,“为的是我不犯错误”。 答案:_,C,
展开阅读全文