状语从句1

课件27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：　　 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 … when1. 时间状语从句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。
② as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） 疑点解释③ as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。常用引导词: __, ______
特殊引导词:　　　if unlessas/so long as, 　 ① We’ll start our project ___ the president agrees.
② You will certainly succeed ____ ___ ___ you keep on trying.2. 条件状语从句要点: 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。 　常用引导词: ____________, ___________________
特殊引导词：　　　　 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; 3. 比较状语从句① She is___ bad-tempered ____ her mother.
② The house is three times___ big ___ ours.
③ ____ more you exercise, ____ healthier you will be.常用引导词: ___ ____, ____ ______. 　 so… that such … that① He got up ___ early that e caught the first bus.
② It’s ____ a good chance that we must not miss it.4. 结果状语从句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: _______
特殊引导词: _________ ___________ ___________where wherever, anywhere, everywhere① Air will be heavily polluted where there are factories.
② Wherever you go, you should work hard.5. 地点状语从句Where there is a will, there is a way.
________________________.
Wherever you go, I go too．
无论你去哪里, 我都去。 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： 常用引导词: _______, _____, ___　because since as6. 原因状语从句—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:__ ____, __ _____ ____.　　
so that in order that① The boss asked the secretary to hurry up with the letters _____ _____ he could sign them.
② The teacher raised his voice _____ _____ _____ the students in the back could hear more clearly. 7. 目的状语从句常用引导词: ______, ________, ____ __, ______ _____　　
特殊引导词： though although even if even thoughno matter … 8. 让步状语从句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。 【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:九. 对状语从句和宾语从句、简单句、并列句的混合考查 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 C2. —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 C1) 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 选择题DC3) 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 BC5) Jack runs as ___ as Tom．
A. fast B. faster C. fastest D. much
6) 30，000dollars is a large amount of money, but it's ____ than we need．
A. for more B. very much
C. far less D. very little CA7) 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 ADC