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概述
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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:
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9 }" E* x" S S, {( }) r" D: j+ b 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 y& @9 N5 z0 @2 s- t 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。9 w) |4 r2 H( |! z8 I# k
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难点释疑( I& l1 H' Y1 S1 M v% v
+ C1 q- q. ]8 S 一、If型4 |2 x1 S$ {, n- I2 n
1 Q+ k( A2 m( j* y8 }9 Q If条件状语从句表示的虚拟语气,其句型结构如下:# P5 Z' ]! `0 ~ M, L
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从句
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. ~* T( Q6 g, m, S6 k$ O. u与过去事实相反
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与现在事实相反
; Y b% C" |: P4 cdid/were
. \4 n! d7 D2 Uwould/could/might do
# i$ c- P1 h; ^8 L: C与将来事实相反! L, N" ^0 O) C% w
were to do/should do/did y' S4 H5 K* J H% U8 M/ L% E+ \
would/could/might do( [ I5 H8 [: Q& B7 Q$ a
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:
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% ?, K: n- F, I 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。& B7 M# ?) Y+ u+ G2 o! B
0 g% O6 e% @, `& a( T! E3 } 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& z* A1 j5 ~+ M! N* e. y
& t( V r3 U5 o4 Z6 P 1.wish后的宾语从句用虚拟语气,其句型结构如下:( y3 \7 I! q) h8 b) p2 N9 L
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与过去事实相反 wish that 从句的谓语动词用had done
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与现在事实相反 wish that 从句的谓语动词用did- t% _' G% x% u* U8 D% U! F
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与将来事实相反 wish that 从句的谓语动词用would/could do
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6 j( e4 ~' q' H 例如:
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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。
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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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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" t" i+ z: Y2 H9 T9 ]4 R
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与现在事实相反 if only 谓语动词用did0 h' r9 |# w9 I7 a
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例如:
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4 L# Y' P4 G, R: d8 D& v If only she had asked someone’s advice! 她要是征求了别人的意见就好了!: O" U% X' p; f
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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 done" _5 L3 \. l S' }; k
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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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; N2 T+ `1 q8 Y: g; ~0 } 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。3 J1 t/ V! V7 `6 n$ A( q, G$ m
' S$ e6 f8 T: B, U 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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# h. p9 c" F) D |$ C+ v1 Y 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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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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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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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: s [! z) [1 I
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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。6 M; l- w& Z) U8 F% `
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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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, v0 F. z& o* K! y 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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& Y, I( X" g2 R, |- y7 a. I 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:; K3 ^- h% C" H
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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。7 z. c" q9 t) T/ y) ~6 P* T
4 J* f* }& O6 w9 B6 F 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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J. l/ j. t# y$ X, ~2 }$ Q 四、其他类型的虚拟语气/ m+ V5 b" G1 }: [
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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:
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与过去事实相反 would rather/sooner…谓语动词用had done5 `8 j+ r* M5 x# T. Q, e/ Q
2 D- E( F) L7 A% d% t' t' `3 D+ y7 K. \: l 与现在、将来事实相反 would rather/sooner…谓语动词用did3 S' B# N0 T1 ?5 J2 U3 c4 X( ^
; ^, y( A" N/ `# t& V: ^ 2.由it is time引导的虚拟语气,谓语动词始终用did。
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; }: W) ~, ^: 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:- q6 p/ @ b4 r8 Z" Y1 w
/ v8 n2 s" A: m! ^ 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 k1 I! ]( f( _1 }( l1 I3 s9 F; Q 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:9 D, f: h g5 P5 `$ Q" f* q
! x0 s# n2 N/ e1 \ { 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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0 C1 |. f9 z. \5 y; A 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。$ w9 d8 X5 R8 T1 M3 k) x
% Y7 y; z. o) I5 X% p2 G2 Z4 ]5 p; n 5.表示祝愿或希望用虚拟语气,例如:& y) U# k0 d; E6 Q2 N
0 }/ J$ v5 y/ E Long live the queen! 女王万岁!
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God bless you! 上帝保佑你!, t% `, c! `3 P0 p: N
2 |; h, b0 z8 w; K" y5 A* k A From:http://edu.sina.com.cn/en/2006-01-10/213235500.html |
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