①If we caught the early train, wed get there by lunch time. 假如我们赶上早班火车,到午饭时间我们就会到达那里了。(表希望)
②If we missed the train, we should have to wait an hour at the station. 假如我们赶不上这班火车,我们就得在车站等一小时。(表不希望)
6) 情态动词用于虚拟语气
有不少情态动词也可用于虚拟语气。如:
(1)It might help a little if only you would keep clean. 你只要愿意保持清洁,可能就会好一些。
(2)If you left at ten, you should arrive in time. 你如十点动身,你就会及时到达。(should意味着可能)
(3)I couldnt be angry with him if I tried. 我即使想生他的气,也做不到。
(4)If I hadnt warned you, you could have been killed. 我如不是警告了你,你就可能丧命了。
(5)If he were wise, he should have come to see me. 他如若聪明,就应该来见我。
[注]在I should not take this medicine, if it would upset you.(如果此药使你感到不适,那我也不用它了)一句中,if从句之后省去了另一if从句,即if you took it,所以would在此是助动词,而不是情态动词。
情态动词may(might)是一种特殊的虚拟语气,它可以用在从句中表目的、让步。如:
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