irrational不合理的;

营养不良的人更有可能被传染。

disappear. v. 消失

maltreat虐待;

disadvantage n. 不利,不利条件;

E.g.Such measures would be highly impracticable and almost impossible to
apply.

invisible不可见的;

E.g.We had to completely disassemble the engine to find the problem.

distrust. v. 不信任, 怀疑

E.g.A child may not differentiate between his imagination and the real
world.

  1. mal- bad,badly:恶,不良

E.g.Infections are more likely in those suffering from malnutrition.

malnutrition营养不良

illiterate n. 文盲;

differentiate v.区分

在记忆和背诵考研英语单词时,我们一般**词根词缀法记忆法,这种方法科学合理,记忆牢固并且迅速,常用前缀、后缀可前往查看。词汇的前缀一般修饰或者改变单词的意思,词汇的后缀一般改变单词的词性。为了广大考生更好更快的记忆单词,对考研英语词汇常**********了汇总,希望对2018年考研的广大考生有所帮助。

  1. di-,dif-, dis-:away,nega**********不

disassemble v. 拆开

E.g.You should disconnect the wireless set before you make adjustments
inside it.

E.g.Many senior managers are technologically illiterate.

  1. il-:表示“不”

他看到一个黑漆漆的东西从浓密的树叶后消失了。

许多**经理都对技术知之甚少。

  1. im-,in-not,in,**********引申意义

E.g. Depression is the third thing that works to my patients’
disadvantage.

illegitimate a. 非法的

这样的措施非常不切实际,几乎不可能付诸实施。

我们只好把发动机全部拆开以寻找故障原因。

抑郁是威胁我的病人健康的第三大杀手。

E.g.He saw something dark disappear behind the curtain of leaves.

E.g.He said that he was not tortured or maltreated during his
detention…

E.g. His behavior was becoming increasingly irrational.

反对党以不合法为由**接受选举结果。

E.g.The election was di**issed as illegitimate by the opposition.

impracticable行不通的

2018考研英语单词:需掌握5个反义否定前缀

2018考研英语单词:需掌握**********望以上的内容能够对你有所帮助。

你应先拔掉无线电插头,再做内部调整。

E.g.Parents fear they might overstep these invisible boundaries…

父母担心他们可能会逾越这些无形的界限。

他说自己在押期间并未遭受拷问和虐待。

  1. dis-表示“不,**”

他的行为变得越来越不理智了。

儿童可能无法将自己的幻想与真实世界区分开来。

记忆英语单词的时候,词根词缀很重要。下面小编带你看2018考研英语单词:需掌握5个反义否定前缀。

disconnect. v. 分离

2018考研英语单词:需掌握5个反义否定前缀。他在那儿的所见让他对一切政****生了一种深深的不信任感。

E.g.What he saw there left him with a profound distrust of all political
authority.

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