打字猴:1.70507587e+09
1705075870 英语语法红宝书 [:1705062857]
1705075871 10.5 情态动词+现在完成时的用法
1705075872
1705075873 很多时候,情态动词之后跟现在完成时,表示对过去事情的猜测或思考等。情态动词之后的现在完成时其基本表达为have done,其中的have没有人称和数的变化。如:
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1705075875 I can (或could) have made it, but I didn’t try my best, so I feel regretful.
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1705075877 我本可以成功的,但我当时并没有尽力,所以我感到懊悔。(can或could+现在完成时表示“本可以做某事”,而实际上当时并没有做)
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1705075879 No matter what a person’s past may (might) have been, his future is spotless.
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1705075881 不管一个人过去可能曾是什么样子,他的未来是一尘不染的。(may或might+现在完成时表示“可能做过某事”,是对过去的猜测)
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1705075883 God must have made every human being with a different intention.
1705075884
1705075885 上帝创造每个人一定是出于不同的目的。(must +现在完成时表示“一定做过某事”,是对过去语气非常肯定的猜测)
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1705075887 She can’t (或couldn’t) have succeeded by luck because she made every effort possible.
1705075888
1705075889 她是不可能靠运气成功的,因为她付出了全部努力。(can’t或couldn’t +现在完成时表示“不可能做过某事”,是must +现在完成时的否定表达。注意:英语中不使用must not +现在完成时)
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1705075891 How I regretted the hours wasted in the woods and fields, the days when I had played and should(或ought to) have studied.
1705075892
1705075893 我多么后悔浪费在树林和田野里的时光,那些我本该读书却只顾玩耍的日子。(should或ought to +现在完成时表示“本该做某事”,而实际上当时没有做)
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1705075895 If you doubt his ability, you shouldn’t (或ought not to) have hired him in the first place.
1705075896
1705075897 如果你怀疑他的能力,你最初本不该雇用他。(should not或ought not to +现在完成时表示“本不该做某事”,而实际上当时做过)
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1705075899 Often when you look back, you feel that you needn’t have worried so much because a lot of things really didn’t matter.
1705075900
1705075901 往往当你回首往事时,你会感到自己本来不必忧心忡忡,因为很多事情实际上无关紧要。(need not +现在完成时表示“本来不必做某事”,而实际上做过)
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1705075903 英语语法红宝书 [:1705062858]
1705075904 实践演练
1705075905
1705075906 Ⅰ.按照汉语提示写出对应的情态动词。
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1705075908 1.  Reading         (应该) be enjoyable.
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1705075910 2.  Real wealth is being able to avoid doing what one         (宁愿) not.
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1705075912 3.  A great book         (不必) even be a best seller in its own day.
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1705075914 4.  Whoever battles with a monster         (最好) see that it does not turn him into a monster.
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1705075916 5.  Men         (可能) doubt what you say, but they will believe what you do.
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1705075918 6.  A strong man         (愿意)struggle with storms of fate.
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