考博英语语法：含蓄虚拟条件句 ;6 ?a8t@
含蓄条件句是指句中没有明显的虚拟条件句，而是利用其他手段来暗示存在虚拟条件。但是这类隐含式虚拟条件句往往都可以转化为if引导的条件句。常来表示含蓄虚拟条件的手段有： k? <.yr1
(1)介词或介词短语，如but for, but that, without, in case of, under more favorable condition等。 J0ys Z]
the leadership of the party, we could not be living a happy today.=If there hadn’t been the leadership of the party, we could not be living a happy today. O$q
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A. In spite of J!{ t/_aw
B. But for og`rsl
C. Because of y% Q0*
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D. As for 答案选B。 Ulf'gD4e
But that she was afraid, she would have said no. (#&-ld
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(2)连词，如：so that, unless, in case, supposing, lest, provided(倘若……)，for fear that(唯恐)，in order that, on condition that, if only(要是……就好了)等。 ]C;X/8'Jf5
She listened carefully in order that she might discover exactly what he wante / 5!0wx N
D.=if she listened carefully ,she might discover exactly what he wante R)@2={fd}
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If only I had more money, I could buy a car. |p .o ^
(注：lest, for fear that 和 in case 引起的从句中谓语动词多用should+动词原形，但可以不用虚拟语气，而用动词的陈述语气形式。)例如： Dh
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The foreign teacher spoke slowly in case we misunderstood him. 这位外籍教师说得很慢以免我们听不懂。 _xe fFy
Care must be taken in using this method lest overflow should occur.在使用此法时要小心谨慎，以免会发生溢流现象。 K7 J RCLA
(3)通过上下文及内在含义，句中往往有but, otherwise, unfortunately等类似转折词。 .E:3I!dH7
I thought the children when we returned home, but they were still awake. 0h=}BCb+i
A. were sleeping 0! Vza?9
B. would be sleeping q4EOI
C. had been sleeping S
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D. would sleep选择 B。 $} @gR]
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(4)形容词及其比较级 7D KTd^^M
A more careful person would not have made so many mistakes. A_\`Gj!s%
A less conscientious man wouldn’t have tried so hard to get this job done. {>3J 96
(5)分词短语 -O^R~Q_`w
Having known in time, we might have prevented the accident. }`$s "Iv@
Born ten days earlier, the boy could have seen his late father. Ei 7Oi!1
(6)动词不定式短语。一般intended/meant/hoped/wished/planned 或 was/were+不定式完成式或had intended/meant/planned/hoped/wished/+不定式一般式表示虚拟。 U * :ju+)k
I intended I should call on you, but I was busy at that time.
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To hear him speak French, you would take him for an Englishman. j"A< qI
She would be stupid not to accept his invitation. N/!( `Z,
It would be easier to do it this way. `h'7 X(
(7)名词短语和名词+and结构 nWes,K6T
A judicious man would not have committed suicide. '~9w<dSB!r
A diligent student would have worked harder. L)n_
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(8)独立主格结构 -@tj0OHg
All things considered, the price would be reasonable. D#D55X^6*
(9)定语从句 VRZqY7j}g
Anyone who had been in your position would have done the same. <L('RgA@X
A nation, which stopped working, would be dead in a fortnight. Ou4 `#7FR
(10)情态动词完成式暗示虚拟语气： t#VX#dJ
I should have called to make an airline reservation, but I didn’t. >"+ ho
The porter ought to have called the fire-brigade as soon as he saw the fire in the stock, which went up in smoke. Hr7?#ZX;e
(11)动词原形表示虚拟 RrT`]1".
动词原形直接用在句子中也被看作是一种虚拟，最常见于正式文体中，动词原形一般用在条件从句中，有时倒装置于句首，同时这种用法也常见于独立句中表达愿望。 I)kc[/^j$
God bless you! lbX
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All magnets behave the same, be they large or small. qg/ FI#r
She’ll be sixteen years odd, com May.(come May =when May come). {<$t
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If that be so, we shall take action at once B]NcY&A
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