1、二、用作从属连词1.表时间,as/n/while用法区别例2 Moterws wrrie eus litle le was ill,epialy _ Fher wasaway in France. (E 9全国卷) A.asB. that C. dig if解析 。主从句动作先后发生常用en;两个较长动作同时发生用whl;特别强调主从句动作同时发生用a,译作“一边一边”, as还可表“随着”。另when, while还可用作并列连词。we表at that ime,而hle表“两相对照”。2表原因,a/beause/since/fr用法区别例 Jennywas ery ad over te lo
2、s o hotos she had so at aada, _ this wasa mmory sheespecal teasd. (NMET 2006广东卷)A. sB. ifC. when. were解析A。as 作从属连词引导原因状语从句。a和bcause, nce, or的区别是:because语势最强,用来说明人所未知的原因,回答wy提出的问题,可置于强调句中且其前可加修饰语; since是双方都知晓原因或经过分析而得之的原因,语气次之;for是并列连词,前用逗号隔开,表逻辑推理或补充说明;as语气最弱,原因是显而易见的或已为人们所知,即已知原因,所引导的分句可置于句首。.表转折,引
3、导让步状语从句来源:学科网ZXK例4_, h tks lt aut ifavoritsgerafte class. (NME 重庆卷)A. A quie tuden as he a b . Quiet studen a he a eBe a qi stuet ase ay D. Qutash ma b stude解析 B。a 引导让步状语从句时,形容词、副词、动词等常置前;若表语为名词,前置时使用零冠词;从句谓语动词常和助动词或情态动词ay, ight, will, would等连用。4.表正如,引导方式状语从句例ho old be resble for thaccdnt?The boss,
4、noe worrs. Tey jut arrie out the ode _. (NME208福建卷)A. a told B. asrtld C. as elliDas thetlds引导方式状语从句,表按照、正如;非限定分句“从属连词-edng形式” 可以看作是一种省略,即省略了主语和be动词。究竟使用何种非谓语动词形式取决于主被动关系。又如:(1) As explned n the pn,your reuest will becsidered atth net meetin.(MT2005浙江卷)(2)Docor haesaid that a mans 40 pecent of atien
5、t dont taemdicie as ited.三、用作关系代词,指代整个句子,s/hict用法区别例6 h Beatles, _ many of you are oldenugh to reember,caefro Lverpol.(ME006天津卷)A.what B. that ho D.s解析 D。a作关系代词,在非限制性定语从句中,可指代整个句子内容,置于句首,而whih不可;i为代词,用作句子成分,但不用来连接句子,故常和并列连词连用;在限制性定语从句中常与uc,te same连用,试比较:来源:xk.Com(1)I havt many tysbu wl sndyou such a
6、sI hve.我的玩具并不多。不过,我会把我仅有的一点玩具送给你。()The ok is not uchtha canadviseotread it.这本书并不怎么样,我没法向你推介。四、用作从句性替代词,等同于s例7 My roo ets verycld atnigh._.(NT2007江苏卷). ois mi B.S in is C. S des mine . S mine oe解析C。从题干中动词es得知,助动词应选择do的适当形式,故排除选项A和;从语序上考虑,排除选项。as用作从句性替代词,等同于so,只是用于正式语体中。如:r eatin habits have hanged, a
7、 ur wy f lie五、ass结构1构成倍数比较句型:tmes+sa例8hat tale! I vneer en suc a thnbfe. t is_it s log.(MET205湖北卷)A. af no as wd as wide notashalfasC. not half a wide a D. as wid ant half解析答案。no与谓语动词连用构成否定。as 作从属连词引导比较状语从句,常见结构为a.as,第一个s为副词,后接形容词或副词,第二个as为连词。程度修饰语应放在第一个a之前。2. aso lonas例 ave you got anyidea for the
8、smmer vacation?来源:学科&网 dontmid hrewe go_ thees sn, sea andah.( NMET20全国卷)A. a ifBas long s . thatD. n order tat解析 B。s ong as最基本词义表示主从句动作延续时间一样长,可引导时间状语从句;若引导条件状语从句,表“只要”,同olyi,为唯一条件。As logs Iknow the mey is se, I shal owory aoit.(NET 203北京卷)3s ar as例10 _ I can see, there i ny onepssiblwa to keep wyf
9、o the dange(N 24北京春季卷). s long asB As ar asC Just as D.Eveni解析 。as far knowcan seaconcerned表据我所知(我看、我所关心的);asfar a还表“远至”。4.as muca例11he mre I thnkabut him, the oe resons I findfr loving i _I did.(NMET2005湖南卷)A. a much asB. as longas C. as oon as D a fr as解析A。as mucha表程度或数量;a lg 表长度或条件;a soon a尽快;s f
10、a s远至,根据。若用于否定句中,第一个as换为s。例:Youn peope in theUSdot care so muabu fashin as tse n China.5.as well 例2 nas ootbal _, Dd (NMET 14全国卷). well. as we asC. so welD.s w a解析B。if n bter than为插入语,对考生答题具有一定干扰。as ells在功能上相当于并列连词,用来连接两个平行成分,但不能用作并列连词。注意在连接两个并列谓语动词时,其后的动词使用动词-g形式;除此之外,所连接的成分前后应保持平行、对等。Cmputrshaveben put into robot a _tomake moi poneas ell s _withedicaoprans. (原创模拟)A s ; to help B. use;lpC. uig; lping D uing; helped Cmpuers have bn putnto oot swl s_to make moiephones an_wth mcal opeatons. (原创模拟)来源:Zxx.mAused; to elp B. h
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