中考专项复习-------状语从句课件

课件15张PPT。状语从句状语从句主要用来修饰主句或主句的谓语。一般可分为八大类，分别表示时间、地点、原因、目的、结果、条件、让步、比较。尽管种类较多，但由于状语从句与汉语结构和用法相似，所以理解和掌握它并不难。状语从句的关键是要掌握引导不同状语从句的常用连接词和特殊的连接词即考点。 ?状语从句简介
总结、状语从句常见引导词　常用引导词：______,__,_____,__ _____ ___._____,_______,_____,____,______,_______.
　特殊引导词：　　 ①I didn’t realize how special my mother was___ I became an adult.
　　②____ John was watching TV, his wife was cooking.　　
　　3.No sooner had I arrived home ____ it began to rain.
　　1． 时间状语从句 when as while as soon
as , while before after since till until the minute, the moment, the day， immediately , no sooner … than, hardly …when, scarcely … when
1) when，while，as的区别：
①三者均可表示“当……的时候”，如果主句表示的是短暂的动作，而从句表示的是一段时间，三者可通用。
②as和when都可与终止性动词连用， while只能与延续性动词连用。如：
It was snowing ____ we got to the airport．当我们到达机场时，天正下着雪。（不能用 while）
③as强调主句与从句表示的动作同时发生；while强调主句表示的动作持续于while所指的整个时间内；when可指主、从句所述动作同时或先后发生。如：
He sang as he went along．他边走边唱。
Please write____ I read．我读的时候，请写下来。
____ he reached home，he had a little rest．回到家后，他休 息了一会儿。
疑点解释 常用引导词：________ ,＿＿＿＿＿＿
　　特殊引导词：
　　　要点：引导条件状语从句的连词有if（如果）、unless（除非）等，unless在意义上相当于if．．．not。条件状语从句也像时间状语从句一样，如果主句用将来时，从句要用现在时代替将来时。如：
You will fail____ you study hard．（＝You will fail if you don't study hard．）除非你努力学习，否则你会失败。 2.条件状语从句　if 　　　　　unless　　　　　　　　　　　as/so long as, 　 　　①We’ll start our project __ the president agrees.
　　②You will certainly succeed ____ ___ ___ you keep on trying.
　　
　　常用引导词：__________,_____________　　特殊引导词：
　　
　　　　3. 比较状语从句as(同级比较), than(不同程度的比较)
the more … the more … ;
A is to B what /as X is to Y; no … more than; ①She is___ bad-tempered ____ her mother.
　②The house is three times___ big ___ ours.
　③____ more you exercise, ____ healthier you will be.
He spoke ___ fast that I couldn't follow him．他讲得太快，我跟不上。
He told us ____funny stories that we all laughed．
他给我们讲了那么多有趣的故事，我们全都哈哈大笑。 　　常用引导词：___ _______ ,____ ______.
　　
　　4． 结果状语从句 so… that such … that①He got up ___ early that he caught the first bus.
②It’s ____ a good chance that we must not miss it.
　　常用引导词：_____________
　　特殊引导词：_________ ___________ ___________
　　Where there is a will，there is a way．
________________________.
Wherever you go，I go too．
无论你去哪里，我都去。 5． 地点状语从句wherewherever, anywhere, everywhere
①Air will be heavily polluted where there are factories.
②Wherever you go, you should work hard.比较: because常回答why引导的疑问句，该从句一般位于主句后；since比as正式，两者不回答why引导的问句，而且其从句一般放在句首。如：
—Why can't I go？为什么我不能去？
— ______ you're too young．因为你年纪太小了。
As（____）you are not feeling well，you'd better stay at home．
既然你不太舒服，还是留在家里的好。
　　常用引导词：_________,_________,_____
　　6． 原因状语从句because since as常用引导词：___ _____,___ _______ ______　　
7． 目的状语从句so that in order that
①The boss asked the secretary to hurry up with the letters _____ _____ he could sign them.
②The teacher raised his voice _____ _____ _____ the students in the back could hear more clearly.
常用引导词：_______ ,_________,____ __ ,______ _____　　特殊引导词：
8． 让步状语从句though although even if even though
no matter … ①_______it‘s hard work，I enjoy it．
尽管这工作很辛苦，我还是很喜欢。
②_____ _______ how hard the work was，he never gave it up．
不管工作多么艰难，他都从不放弃。
②_____ _____ _____ hard he tried, she could not change her mind.
③He won’t listen ______ you may say.
【考点1】区分when，if引导宾语从句和状语从句的不同：when引导时间状语从句意为“当……时候”，引导宾语从句意为“什么时候”；if引导条件状语从句意为“如果”，引导宾语从句意为“是否”。如：
1．—Mike wants to know if _____ a picnic tomorrow．
—Yes．But if it _____ ，we'll visit the museum instead
A．you have；will rain B．you will have；will rain
C．you will have；rains D．will you have；rains
2．—Do you know when he _____ back tomorrow？
—Sorry，I don't．When he _____ back， I'll tell you
A．comes；comes B．comes；will come
C．will come；comes D．will come；will come 九、对状语从句和宾语从句、简单句、并列句的混合考查 答案1】1．C 2．C :选择题1）It ______ ten years since they ______ to France.
A．as；covered B．was；have moved
C．is；have moved D．is；moved
2）He ______ wait until the rain ______ ．
A．won't；will stop B．won't；stop
C．will；stops D．will；will stop
3）He will go to the Great Wall if it ______ tomorrow．
A．won't rain B．doesn't rain C．don't rain D．isn't raining
4） ______ you eat old food，you may be ill．
A．Before B．Why C．If D．Which
5）Jack runs as ______ as Tom．
A．fast B．faster C．fastest D．much f
6）30，000dollars is a large amount of money，but it's ______ than we need．
A．for moreB．very much C．far less D．very little 答案:1) D 2) C 3) B 4)C 5)A 6)C7）Miss Gao asked a question，but it was ______ that nobody could answer it．
A．very difficult B．too difficult C．difficult enough D．so difficult
8）I can't understand this passage _____ there are no new words in it．
A．if B．because C．though D．and
9）“Why did Li Lei use a pencil？”“ _____ his pen was broken．”
A．Because B．When C．Until D．If 答案:7)D 8)C 9)A选择题谢谢合作!再见!