1.impractical和impracticable (not sensible or efficient or not actually possible)“不切實(shí)際的，不現(xiàn)實(shí)的”。
    impracticable (not able to be done or used)“不能實(shí)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，難以置信的”;incredible energy驚人的能量，精力。
    incredulous“不相信的，表示懷疑的”;be incredulous of hearsay不相信道聽(tīng)途說(shuō);an incredulous look懷疑的目光。
    3.ingenious和ingenuous
    ingenious“機(jī)靈的”; an ingenious mind機(jī)靈的頭腦;an ingenious machine精巧的機(jī)器。
    ingenuous“直率的，坦白的”。
    4.intense和intensive
    intense“激烈的，強(qiáng)烈的”，“緊張的”an intense light強(qiáng)烈的燈光;intense heat酷熱;an intense life奮發(fā)圖強(qiáng)的生活。
    intensive“加強(qiáng)的，集中的”;“深入細(xì)致的，徹底的”; an intensive bombardment密集炮擊;an intensive study徹底的研究;an intensive reading精讀(extensive reading泛讀)。
    5.junction和juncture
    junction“接合，連接”，“(河流的)匯合處”; make a junction取得聯(lián)絡(luò)，連接起來(lái)junction box接線盒。
    juncture (a particular point in time or in a sequence of events)“接合，連接”，“時(shí)機(jī)，關(guān)頭”;an important juncture in a man's career人生歷程中的重要關(guān)頭;at this juncture在這個(gè)時(shí)候;in the present critical juncture of things在目前這一危急關(guān)頭下。
    6.apt和prone
    它們都具有“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，寬的”。
    lose“丟失”; 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;多產(chǎn)的;豐富的”;His luxuriant beard was red.
    luxurious“豪華的，奢侈的”;a luxurious table奢侈的飯菜。
    9.magical和magic
    它們都和magic有關(guān)系，但是magical也有“wonderful, entrancing”的意思。
    10.masterly和masterful(showing great skill or the skill of a master)“熟練的;名家的”。
    masterful (showing power or authority)“主人派頭的，專(zhuān)橫的”;Youre so strong and masterful.