1、狀語從句,狀語從句主要用來修飾主句或主句的謂語。一般可分為八大類, 分別表示時(shí)間、地點(diǎn)、原因、目的、結(jié)果、條件、讓步、比較。盡管種類較多, 但由于狀語從句與漢語結(jié)構(gòu)和用法相似, 所以理解和掌握它并不難。狀語從句的關(guān)鍵是要掌握引導(dǎo)不同狀語從句的常用連接詞和特殊的連接詞即考點(diǎn)。,狀語從句簡介,總結(jié)、狀語從句常見引導(dǎo)詞,常用引導(dǎo)詞：_, _, _, _ _. _, _, _, _, _, _, _. 特殊引導(dǎo)詞：,when as while as soon as while before after since till until,the minute, the moment, the day,

2、immediately, no sooner than, hardly when, scarcely when,1. 時(shí)間狀語從句,1) when, while, as的區(qū)別： 三者均可表示“當(dāng)?shù)臅r(shí)候”, 如果主句表示的是短暫的動(dòng)作, 而從句表示的是一段時(shí)間, 三者可通用。 as和when都可與終止性動(dòng)詞連用, while 只能與延續(xù)性動(dòng)詞連用。如： It was snowing _ we got to the airport當(dāng)我們到達(dá)機(jī)場時(shí), 天正下著雪。（不能用 while）,疑點(diǎn)解釋, as強(qiáng)調(diào)主句與從句表示的動(dòng)作同時(shí)發(fā)生; while強(qiáng)調(diào)主句表示的動(dòng)作持續(xù)于while所指的整個(gè)時(shí)間內(nèi);

3、 when可指主、從句所述動(dòng)作同時(shí)或先后發(fā)生。如: He sang as he went along. 他邊走邊唱. Please write_ I read. 我讀的時(shí)候, 請(qǐng)寫下來。 _ he reached home, he had a little rest. 回到家后, 他休 息了一會(huì)兒。,常用引導(dǎo)詞: _, _ 特殊引導(dǎo)詞:,if unless,as/so long as, Well start our project _ the president agrees. You will certainly succeed _ _ _ you keep on trying.,2. 條件

4、狀語從句,要點(diǎn): 引導(dǎo)條件狀語從句的連詞有if(如果)、unless(除非)等, unless在意義上相當(dāng)于ifnot。條件狀語從句也像時(shí)間狀語從句一樣，如果主句用將來時(shí), 從句要用現(xiàn)在時(shí)代替將來時(shí)。如： You will fail _ you study hard(You will fail if you dont study hard)除非你努力學(xué)習(xí), 否則你會(huì)失敗。,常用引導(dǎo)詞: _, _ 特殊引導(dǎo)詞：,as(同級(jí)比較) than (不同程度的比較),the more the more ; A is to B what /as X is to Y; no more than;,3. 比較

5、狀語從句, She is_ bad-tempered _ her mother. The house is three times_ big _ ours. _ more you exercise, _ healthier you will be.,常用引導(dǎo)詞: _ _, _ _.,so that such that, He got up _ early that e caught the first bus. Its _ a good chance that we must not miss it.,4. 結(jié)果狀語從句,He spoke _ fast that I couldnt follo

6、w him他講得太快，我跟不上。 He told us _funny stories that we all laughed 他給我們講了那么多有趣的故事，我們?nèi)脊笮Α?常用引導(dǎo)詞: _ 特殊引導(dǎo)詞: _ _ _,where,wherever, anywhere, everywhere, Air will be heavily polluted where there are factories. Wherever you go, you should work hard.,5. 地點(diǎn)狀語從句,Where there is a will, there is a way. _. Where

7、ver you go, I go too 無論你去哪里, 我都去。,比較: because?；卮饂hy引導(dǎo)的疑問句, 該從句一般位于主句后; since比as正式, 兩者不回答why引導(dǎo)的問句, 而且其從句一般放在句首。如：,常用引導(dǎo)詞: _, _, _,because since as,6. 原因狀語從句,Why cant I go? 為什么我不能去? _ youre too young. 因?yàn)槟隳昙o(jì)太小了。 As (_)you are not feeling well，youd better stay at home 既然你不太舒服，還是留在家里的好。,常用引導(dǎo)詞:_ _, _ _ _.,

8、so that in order that, The boss asked the secretary to hurry up with the letters _ _ he could sign them. The teacher raised his voice _ _ _ the students in the back could hear more clearly.,7. 目的狀語從句,常用引導(dǎo)詞: _, _, _ _, _ _ 特殊引導(dǎo)詞：,though although even if even though,no matter ,8. 讓步狀語從句, _ its hard wo

9、rk, I enjoy it 盡管這工作很辛苦, 我還是很喜歡。 _ _ how hard the work was，he never gave it up 不管工作多么艱難, 他都從不放棄。,【考點(diǎn)1】區(qū)分when, if引導(dǎo)賓語從句和狀語從句的不同: when引導(dǎo)時(shí)間狀語從句意為“當(dāng)時(shí)候”, 引導(dǎo)賓語從句意為“什么時(shí)候”; if引導(dǎo)條件狀語從句意為“如果”, 引導(dǎo)賓語從句意為“是否”。如:,九. 對(duì)狀語從句和賓語從句、簡單句、并列句的混合考查,1. Mike wants to know if _ a picnic tomorrow Yes. But if it _, well visit

10、the museum instead A. you have; will rain B. you will have; will rain C. you will have; rains D. will you have; rains,C,2. Do you know when he _ back tomorrow？ Sorry, I dont. When he _ back, Ill tell you A. comes; comes B. comes; will come C. will come; comes D. will come; will come,C,1) It _ ten ye

11、ars 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. wont; will stop B. wont; stop C. will; stops D. will; will stop,選擇題,D,C,3) He will go to the Great Wall if it _ tomorrow A. wont rain B. doesnt rain C. dont rain D. isnt rain

12、ing 4) _ you eat old food, you may be ill. A. Before B. Why C. If D. Which,B,C,5) Jack runs as _ as Tom A. fast B. faster C. fastest D. much 6) 30，000dollars is a large amount of money, but its _ than we need A. for more B. very much C. far less D. very little,C,A,7) 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)