Thedoctortriedhisbest,andatlas

发布时间:2020-07-27 20:26:22

The doctor tried his best,and at last he________the wounded soldier.Which is WRONG?A.could saveB.was able to saveC.managed to saveD.succeeded in saving

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A解析分析:can和be able to虽然都表示“能力”,是同义词,但有区别。除了be able to有较多的时态形式,can只有can和could两个形式;be able to的主语是“人”,而can的主语可以是“人”也可以是“物”这两个区别以外,还有就是当都是过去时的时候,could只表示“有能力”,并不表示最终是否去做,而was(were)able to不仅表示有“能力”,而且表示最终成功地做了。此时was(were)able to do sth=managed to do sth=succeeded in doing sth都表示过去一次得以做成功的事情。从本句的意思来看这医生最终救活了伤兵,所以A项是错的。(题型变化)He was able to save the wounded soldier.=He managed to save the wounded soldier.=He succeeded in saving the wounded soldier.
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