16.coherence和cohesion
coherence统一,一致性cohesion结合力，团结，The cohesion or molecules分子的结合力。
17.compare with和 compare to
compare with和比起来
compare to好比。He compared the moon to a silver plate.他把月亮比成一个大银盘。
18.impel和compel
impel推动，驱使，激励。impel sb.to do sth.激励某人做某事;
compel强迫，胁迫，迫使。compel sb.to oneg will强迫人服从自己。
19.complement和compliment
complement补足，补全，补足语。
compliment恭维话，赞辞，敬意Your presence is a great compliment.承蒙光临，不胜荣幸。
2o.continual和continuous
continual连续，继续频繁的continual bouts of toothache一阵接一阵的牙痛。
continuous连续weve had three weeks of continuous rain.我们这里连续三周下雨不停。
21.might和could
might表明possibility。
could应该用来表明permission.Mum said we couldgo to the football match.
22.council和counsel
council议事机构，委员会a cabinet council内阁会议。
counsel商议，劝告follow sb.s counsel close牢记某人忠告。
23.economical和economic
economic经济学的，经济上的an economic survey of Scotland苏格兰经济调查;an economic block.ade经济封锁;economical节俭的，经济的Hes had to learn to be more economical now that his only in.come is a small pension.
24.historical和historichttp://ks.examda.com
historical有关历史的，历史的，the historical period历史阶段;historical personage历史人物。historic历史上有名的，有历史意义的，historic town历史名城。
25.infer和imply
infer猜想，臆测，推断infer a motive from an effect从效果推知动机。
imply含有的意思Do you realize what his words imply?你理解他说话的含意吗?I do not imply that you are wrong.我的意思不是说你错了。
26.intense和intensive.
intense激烈的，强烈的，紧张的an intense light强烈的灯光;intense heat酷热;an intense life奋发图强的生活。
intensive加强的，集中的深入细致的，彻底的an intensive bombardment密集炮击;an intensive study彻底的研究;an intensive reading精读。
27.apt和prone
它们都具有tending to or in the habit of的意思，但是prone只用于人。Elderly people are prone to falls，often because of arthritic joints or dizziness.
28.1oose和lose
loose松的，宽的。
lose丢失lose oneg balance失去平衡，跌倒;lose oneg head被搞糊涂。
29.magical和magic
它们都和magic有关系，但是magical也有wonderful，entrancing的意思。
3o.masterly和masterful
masterly熟练的;名家的。
Masterful主人派头的，专横的Youie so strong and
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