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概述
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S# B$ s- p* s: m0 }- S0 i. a 语气是用来表示说话者的意图和态度的。尽管英语中有陈述语气(indicative mood)、祁使语气(imperative mood)、虚拟语气(subjective mood),但是虚拟语气是各种英语考试中考察最多的一种。虚拟语气在英语里主要用来表达:
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3 S9 u8 g. `+ Q5 N0 m( h, a 1.非真实的情景,不可能发生的事,即某种与事实相反或难以实现的情况,或说话人的主观愿望。
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2.强制性虚拟语气,表示建议、命令、劝告等意思,表示强烈地要求做到、必须做到这样的含义。
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* k4 n. y5 T5 j0 N9 V `" q 虚拟语气的表达形式是通过动词的变化形式表达的,其特点是主从句时态的不一致,而起一般有明显的标志。* Q$ @* P6 R5 Z- B2 Y9 g: o# f- V
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难点释疑
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4 P% Z8 O4 e2 r6 n7 N$ x3 _6 k 一、If型
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9 r& g+ S. {; h3 _8 d If条件状语从句表示的虚拟语气,其句型结构如下:6 | B t# s2 o% a P) X
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从句
4 e3 ~# |6 _' G1 {; X主句
+ f6 v' b- U* S$ P x, y与过去事实相反
6 a- V; X; M2 T/ n) ?/ N- u% ^( M9 Ghad done
, `0 w$ _4 D% z- {7 {1 @: n- gwould/could/might have done
' a% Q3 D+ `" ^$ C2 W与现在事实相反3 V ~! m) {; y' z8 s
did/were! F, I; y! i% g8 \' U1 o& }4 W
would/could/might do. y0 D& d. c. W% o4 S2 J
与将来事实相反/ V+ \6 r* A3 P
were to do/should do/did
' k" ^* N% L4 `, g4 g. s- k3 swould/could/might do9 P# f; n' Y {7 q4 w! V% c
特别值得注意的是,这种虚拟语气的形式存在交叉虚拟,即如果从句发生的动作和主句发生的动作不一致(例如:从句动作发生在过去,主句动作发生在现在),谓语动词要根据表示的时间进行调整。例如:. l) H/ q+ q. T, K1 a6 _
+ g- D$ ?3 F$ K6 G, U% m, t If Peter had applied for the post, he would probably get it now.要是彼得申请了那职位,他很可能现在就得到了。
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If he had left for Shanghai yesterday, he would get there now.如果他昨天动身去上海的话,他现在已经到那里了。
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二、Wish型
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6 t2 {6 w2 ^# w: B$ p& |+ L$ T; x2 u4 | 1.wish后的宾语从句用虚拟语气,其句型结构如下:6 S+ d4 p5 X# O
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与过去事实相反 wish that 从句的谓语动词用had done; E2 i- c/ @. F' D2 o4 h
# h6 \& m. z8 y. g; }5 C$ `: ] 与现在事实相反 wish that 从句的谓语动词用did$ h8 \- \2 n. y4 i* \
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与将来事实相反 wish that 从句的谓语动词用would/could do" K/ V& v% D0 P. Q' I& c3 c$ m Q- U
5 X+ ^1 q+ ?: N. {$ g' F2 C- G0 l* r2 { 例如:/ e9 R) B# z. U9 f( j# ]2 p
1 ]) T. K5 [8 v I wish they would change the menu.他们要是改变一下菜单就好了。
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I wish I hadn’t spent so much money.我要是没花那么多的钱就好了。
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. r; m( n4 }) p! Z- G8 k5 U( l5 T 同样地,在as if/as though引导的宾语从句中和以if only引导的带有感叹色彩的虚拟语气句子中,谓语动词与wish引导的宾语从句中的虚拟形式相同。
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5 ~" Z% x6 g! p+ y 2.由if only 引导的虚拟语气
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与过去事实相反 if only 谓语动词用had done n! o7 i6 t- q0 s, w
5 ?/ _1 v" V2 ~8 e' J9 a4 q 与现在事实相反 if only 谓语动词用did8 Q; ]1 Y, C/ g0 p" D/ v
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例如:
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If only she had asked someone’s advice! 她要是征求了别人的意见就好了!
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3.由as if/as though 引导的虚拟语气
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与过去事实相反 as if/as though谓语动词用had done3 f6 K, W$ H9 [9 X8 h5 y
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与现在事实相反 as if/as though谓语动词用did
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' T* l) k- A' o% L/ G; k& f 例如:
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He talks about Rome as if he had been there himself.谈论起罗马来就像他去过似的。
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H& d* D5 x& v& O* U+ p He orders me as though I were his wife.他向我发号施令就好像我是他的妻子似的。- J2 Q" P0 D6 _2 q! `0 o* O
& l4 ~: j+ [) `; _& M0 f% |4 [ 三、强制性虚拟语气6 [: ]- P4 y: X) r
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1.表示建议、命令、劝告、决心等主观色彩的动词 + that + (should) + 动词原形,其中should经常被省略。这类动词包括:advise,ask,command,decide,decree,demand,desire,determine, direct,insist,maintain,move(动议,规定),order,prefer,propose,recommend,require,stipulate,suggest等等。例如:! q' d( @, Y$ g# I% g+ c: z( J
B# s: ?9 F% k }' W: G It is politely requested by the hotel management that radios (should) not be played after 11 o'clock at night.酒店管理人员恳请房客在晚上11点之后不要打开收音机。2 v F8 u: t( M. ^0 ]
( c) |' Z, Z( I- K- V9 G 2.以上动词转化为名词,如suggestion,proposal,demand,order,command,advice,desire,requirement,request,agreement,determination,preference,resolution,indication,后接同位语从句或表语从句时,从句要求用虚拟语气,其谓语部分用should + 动词原形,should可以省略。例如:, s: l% D' G ~! P( F% e j1 o
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We are all for your proposal that discussion should be put off.我们都支持你推迟讨论的建议。4 E6 H6 n7 M* x6 y) |) V
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3.值得注意的是,只有suggest意为“建议”、insist意为“坚持认为”时,从句用虚拟语气,当suggest意为“暗示”、insist意为“坚持说”时,从句不用虚拟语气。例如:( m# x8 i% Z. J7 Z R7 y; U, H
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When the son suggested that they should go to park on Sunday, the expression on his father suggested that he agreed with him.当儿子提议星期天去公园时,父亲用表情表示了默许。, Q( U2 }# S l- ~" K# O3 Z
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The boy insisted that he didn’t cheat in the exam.这个孩子坚持说他没有在考试中作弊。(考试已经结束)
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/ X$ ~% q* [! U; Z) _ The boy insisted that he shouldn’t cheat in the exam.这个孩子坚持认为不应该在考试中作弊。(考试还未进行)
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: d! p! b) `! S, M" |3 x 4.It is/was + 形容词/过去分词 + that + (should) + 动词原形,这些形容词主要表示必要性、重要性、强制性、合适性、义务性,即某人对某事的反应。这类词包括:important,natural,desirable,possible,astonishing,advisable,anxious,appropriate,compulsory,crucial,eager,essential,fitting,imperative,improper,necessary,obligatory,preferable,proper,urgent,vital,shocked,requested,amazing,strange,odd,ridiculous,surprising,unthinkable,incredible等等。例如:
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It is important that students graduating from universities should have not only theory but also practice.大学毕业生不仅要有理论知识,更要有实践经验,这一点很重要。
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It is surprising that they should kill the time like that.他们竟然这样打发时间,真是太奇怪了。3 z4 |7 c# t. f. R$ ?
2 O8 H* H8 X$ _ O 四、其他类型的虚拟语气. B6 L1 I8 {0 W5 v# V+ f
5 L. c/ _7 v5 p# ^: C 1.由would rather/sooner,would sooner,had rather,would just as soon,would prefer等结构引导的虚拟语气,其句型结构如下:
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与过去事实相反 would rather/sooner…谓语动词用had done
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u' b. I6 g6 ] W6 G 与现在、将来事实相反 would rather/sooner…谓语动词用did
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2.由it is time引导的虚拟语气,谓语动词始终用did。
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! y2 T, ~8 h( G/ a$ T9 d 3.在lest that,for fear that,in case that,引导的表示消极意义的目的状语从句中常用虚拟语气,结构用should + 动词原形。例如:
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+ _% m/ L+ @! ]; L' f. s I keep some candle in the house in case that electric power should fail.我在家里备了些蜡烛,以防断电。
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4.含蓄虚拟条件句是指没有出现用if 引导的条件句,而条件句的意思是用其他方式表达的。如:without,but for,otherwise,or,but that,given,provided,supposing,were it not for等等。例如:) F/ M$ o! z, j- A- @
, ~5 f9 B. h' A. t: w1 l# R1 g Given me more time, I would have worked out a more perfect scheme. 再给我一点时间的话,我本可以设计出更加完善的方案。7 X$ N( q2 s8 K. C
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Were it not for your help, I would haven’t finished the work on time. 要不是你的帮助,我不可能按时完成工作。
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' i, w% a$ ?& t1 i' D, V 5.表示祝愿或希望用虚拟语气,例如:
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Long live the queen! 女王万岁!
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God bless you! 上帝保佑你!
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From:http://edu.sina.com.cn/en/2006-01-10/213235500.html |
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