改革后的新gre考试词汇量的考察下降20%，希望考生不要被下降20%所迷惑，虽然对新gre考试词汇春意义的考察减少了，但是更加注重实际语言能力的考察了，所以同学们绝对不能放松对词汇的学习，以下是小编为大家搜素的有关impugn的考法及近义词和反义词的整理。
　　impugn: 表示怀疑; to criticize or challenge as false or questionable in nature
　　1) to attack with words; to question the truthfulness or integrity
　　2) to challenge as false, to assail
　　impugn <> uphold 指责，攻击，反对<>支持
　　impugn <> consent
　　impugn <> extol 9
　　impugn <> vindicate 责难<>辩护
　　impugn <> champion攻击，指责<>拥护，支持
　　impugn <> endorse 攻击，指责<>认可
　　impugn <> approve, laud, compliment
　　impugn <> appease
　　impugn <> grantant
　　impugn = charge yMdu
　　impugn 责难, 非难, 驳斥 <> champion/vindicate/endorse
　　impugn (criticize) <> uphold (support) should be correct rather than appease (soothe).
　　inviolable<>impugn 不可侵犯的,不可征服的<>指责
　　The defense lawyer impugned the witness’s testimony, which set back the prosecution’s case.
　　If I believe the man is a fraud I will impugn his comments.
　　【考法1】v. 责难，攻击抨击： to attack as false or questionable; challenge in argument
　　【例】impugn a political opponent’s character 就政治对手的人品发难
　　【近】 attack, assail, contradict, contravene, cross, disaffirm, deny, gainsay, negate, negative, traverse onm
　　【反】 advocate, back, support, uphold 支持;authenticate 证实，证明
　　新gre考试已经陆陆续续被很多考生体验过，根据ets的考察方向及考生的反应，新gre对单词的考察并没有降低反而还有所提高，因此备考新gre考试词汇仍是迫在眉睫的问题，俗话说：“万丈高楼平地起”只有精确熟练的掌握了词汇，才可能在征服新gre考试的道路上立于不败之地。