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概述# q% Q7 x e/ j. D( ^+ ~- S
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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:6 ~" I7 G9 u& N3 y" D
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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。/ X: h! i# `1 g! T. q( J) j7 f
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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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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。' L% M/ M) r1 r! U* E
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难点释疑
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一、If型
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If条件状语从句表示的虚拟语气,其句型结构如下:4 Q( O* b% ?# `* t
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从句7 P* H. F$ E& f
主句9 o# V7 x/ o+ S% Z! s: R
与过去事实相反
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: v3 T/ c0 z9 Cwould/could/might have done0 F6 p) y, k$ x0 d
与现在事实相反5 Q8 u2 P; W0 z# @
did/were5 e! h: N% V8 z
would/could/might do' p0 I' M* a' Q9 }
与将来事实相反
8 E# n1 \( l+ r4 E: U' C2 Bwere to do/should do/did
, E$ q/ s, h. w) O! F7 Rwould/could/might do
* h1 Q- F1 @& h6 l0 {/ p1 v 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:! H- V& P. I1 ^% Y0 p8 U( k$ D* y
5 z* t% H1 d! C' _ 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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/ ^4 D/ b# Y. g& ]" r9 Z 二、Wish型
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1.wish后的宾语从句用虚拟语气,其句型结构如下:
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3 ~4 M; V) W8 R2 ? 与过去事实相反 wish that 从句的谓语动词用had done5 y5 m2 M" {0 i+ s. k
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与现在事实相反 wish that 从句的谓语动词用did
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; b* A) z7 w$ M" ?- q- o, h/ k 与将来事实相反 wish that 从句的谓语动词用would/could do8 W. r0 P5 ~2 }7 R
# J: l: `- ^! L 例如:$ R* d- E E% d% T/ @
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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。$ l3 h% w& r; o
' E: E9 l( @8 F, k+ q: E 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。+ i+ Z! {5 N1 Z( X
8 J8 M- f& l$ l$ u4 U 2.由if only 引导的虚拟语气
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# t! A) g, y7 o' k. t/ j 与过去事实相反 if only 谓语动词用had done
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与现在事实相反 if only 谓语动词用did, c) J( O) t2 _- V' y! T
+ a! d( l4 Z5 ], Q 例如:! ^" \0 [/ Z& f3 h7 R3 \& L
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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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( u- V% {7 O& D# I) H 3.由as if/as though 引导的虚拟语气* Z6 ~& R% d+ y0 }
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与过去事实相反 as if/as though谓语动词用had done% X$ J1 J1 y. f g* C
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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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例如:
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; }) j! Z4 y: B" c He talks about Rome as if he had been there himself.谈论起罗马来就像他去过似的。6 o- c1 D( {& D$ B" A+ N; V
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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。
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三、强制性虚拟语气
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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:
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* ]- B0 \2 ~. `1 s/ P 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。
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! t5 i. C0 H4 o ?2 F6 d9 v g- s6 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:
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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。
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! f& N! A' \$ [0 O: [* r 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:# a2 f3 F9 R* A5 F6 X- a
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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。; u2 R1 p, R8 u, @4 t
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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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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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1 O( V q- Q8 P) G8 h6 c 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:6 J" e! y/ O9 s3 }
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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。
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四、其他类型的虚拟语气
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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:8 M5 @9 U- b; h1 }
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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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6 [! y- v1 [2 t$ ? 与现在、将来事实相反 would rather/sooner…谓语动词用did* ~, j$ e& L% [- F
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2.由it is time引导的虚拟语气,谓语动词始终用did。7 L+ S1 w% D( K8 X( h$ U% C0 m0 d; i
( L9 e p$ t6 ^- C 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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; d/ x& T1 {% x* P; x 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。! r# z" M: z \& S; F5 P
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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:
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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。
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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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% c9 h# {/ i5 |. s0 t! _* q; Z 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!3 @! H* D$ h+ S3 i; Q0 I
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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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