1.impractical和impracticable (not sensible or efficient or not actually possible)“不切实际的，不现实的”。
impracticable (not able to be done or used)“不能实行的，行不通的”;With a river on one side and a steep drop on the other, it is impracticable to widen the road.
2.incredible和incredulous
incredible“不可相信的，难以置信的”;incredible energy惊人的能量，精力。
incredulous“不相信的，表示怀疑的”;be incredulous of hearsay不相信道听途说;an incredulous look怀疑的目光。
3.ingenious和ingenuous
ingenious“机灵的”; an ingenious mind机灵的头脑;an ingenious machine精巧的机器。
ingenuous“直率的，坦白的”。
4.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(extensive reading泛读)。
5.junction和juncture
junction“接合，连接”，“(河流的)汇合处”; make a junction取得联络，连接起来junction box接线盒。
juncture (a particular point in time or in a sequence of events)“接合，连接”，“时机，关头”;an important juncture in a man's career人生历程中的重要关头;at this juncture在这个时候;in the present critical juncture of things在目前这一危急关头下。
6.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.
7.loose和lose
loose“松的，宽的”。
lose“丢失”; lose one's balance失去平衡，跌倒;lose one's head被搞糊涂。
8.luxuriant和luxurious
luxuriant (growing strongly or vigorously; abundant, prolific)“繁茂的;多产的;丰富的”;His luxuriant beard was red.
luxurious“豪华的，奢侈的”;a luxurious table奢侈的饭菜。
9.magical和magic
它们都和magic有关系，但是magical也有“wonderful, entrancing”的意思。
10.masterly和masterful(showing great skill or the skill of a master)“熟练的;名家的”。
masterful (showing power or authority)“主人派头的，专横的”;Youre so strong and masterful.
