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： ' tc$#f^:
（1）介词或介词短语，如but for, but that, without, in case of, under more favorable condition等。 <K~#@.^`
the leadership of the party, we could not be living a happy today.=If there hadn't been the leadership of the party, we could not be living a happy today. k5 8lmuU
A. In spite of B. But for C. Because of D. As for 答案选B。 ^,50]uX_
But that she was afraid, she would have said no. }
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（2）连词，如：so that, unless, in case, supposing, lest, provided（倘若……），for fear that（唯恐），in order that, on condition that, if only（要是……就好了）等。 Sx}h$E:
She listened carefully in order that she might discover exactly what he wanted.=if she listened carefully ,she might discover exactly what he wanted. {.sF&(e
If only I had more money, I could buy a car. .w`8_v &Y
（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： ][9 M_
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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。 r$+9grm<
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。 OLv (
（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。 $0WAhq
I thought the children when we returned home, but they were still awake. #3.\ }d)
A. were sleeping B. would be sleeping C. had been sleeping D. would sleep选择 B。 4&?%" 2
（4）形容词及其比较级 O32:j
A more careful person would not have made so many mistakes. ' &\km~&
A less conscientious man wouldn't have tried so hard to get this job done. [! v:fj
（5）分词短语 %_
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Having known in time, we might have prevented the accident. C! :\H<gI
Born ten days earlier, the boy could have seen his late father. [IMa0qs'
（6）动词不定式短语。一般intended/meant/hoped/wished/planned 或 was/were+不定式完成式或had intended/meant/planned/hoped/wished/+不定式一般式表示虚拟。 K'y;j~`-
I intended I should call on you, but I was busy at that time. "8s0~ [6S
To hear him speak French, you would take him for an Englishman. & %1XYpA.0
She would be stupid not to accept his invitation. ($]y*| Obn
It would be easier to do it this way. Hl] 3F^ {
（7）名词短语和名词+and结构 @ %kCe>r
A judicious man would not have committed suicide. V\Rbnvq
A diligent student would have worked harder. 5`0tG;
（8）独立主格结构 qbmy~\ZY
All things considered, the price would be reasonable. 1S <V,9(
（9）定语从句 lQldW|S>
Anyone who had been in your position would have done the same. x?T/=C
A nation, which stopped working, would be dead in a fortnight. J'|qF S
（10）情态动词完成式暗示虚拟语气： RD<l<+C^~
I should have called to make an airline reservation, but I didn't. @M S;qoc
The porter ought to have called the fire-brigade as soon as he saw the fire in the stock, which went up in smoke. ,i e84o
（11）动词原形表示虚拟
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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。 ]HC u tq
God bless you! 1
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All magnets behave the same, be they large or small. Q3*@m
She'll be sixteen years odd, com May.（come May =when May come）。 t?iCq1
If that be so, we shall take action at once. G BV]7.
