2018年聚焦新中考课件：第二轮语法考点聚焦状语从句

课件13张PPT。第34讲　状语从句人教版高频考向一　表时间和原因的状语从句
①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：
I'll let you know as soon as she comes.她一来，我就会让你知道。
Jane didn't go to bed until she finished her homework.简直到完成作业后才睡觉。②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 won't 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 didn't go to bed ________ he finished his work last night.(2016，重庆)
A．if　　　　B．until　　　C．since　　　D．because
解析：句意：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：____B【例2】 Mark isn't coming to the concert ________ he has got too much work to do.
A．so B．until C．although D．because
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：____D高频考向二　表条件和让步的状语从句
①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，we'll stay at home.如果明天下雨，我们会待在家里。
②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 will never achieve success ________ you devote yourself to your work.(2017，苏州)
A．after B．if C．because D．unless
解析：考查条件状语从句的引导词。句意：你将永远不能成功，除非你全身心地投入到工作之中。after“在……之后”；if“如果”；because “因为”；unless“除非……，如果不……”。
答案：____D【例4】 The actor was happy he got a part in a movie, ________ the part was a small one.(2017，河南)
A．since B．while C．though D．unless
解析：考查让步状语从句。句意：那位演员很高兴自己在电影中扮演了一个角色，尽管是个小角色。though意为“虽然；尽管，”符合语境。
答案：____C高频考向三　表目的和结果的状语从句
①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，以便每个人都能听见你说的话。
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。②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 isn't 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 can't 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5】I looked through my test paper again and again ________ I wouldn't make any mistakes.(2016，威海)
A．so B．because C．so 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【例6】—You study ________ hard ________ you're sure to pass the exam.
—Thank you for saying so.(2015，福州)
A．enough；to　　　B．as；as　　　C．so；that
解析：enough...to“足够做……”；as...as...“和……一样”；so...that...“如此……以至于……”。句意：——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