20．continual和continuous
continual"連續(xù)，繼續(xù)”；“頻繁的”；continual bouts 0f toothache一陣接一陣的牙痛。(這中間可能有停頓或間斷。)
continuous"連續(xù)”(指從不間斷的)；weve had three weeks 0f continuous rain．我們這里連續(xù)三周下雨不停。
21．might和could
might表明“possibility’。
could應(yīng)該用來表明"permission"．Mum said we could(might)g0 t0 the football match．
22．council和counsel
council"議事機構(gòu)”，委員會a cabinet council內(nèi)閣會議。
counsel"商議，勸告”；follow sb．s counsel close牢記某人忠告。
23．economical和economic
economic"經(jīng)濟(jì)學(xué)的，經(jīng)濟(jì)上的”an economic survey of Scotland蘇格蘭經(jīng)濟(jì)調(diào)查；an economic block．a(chǎn)de經(jīng)濟(jì)封鎖；economical"節(jié)儉的，經(jīng)濟(jì)的”；Hes had t0 learn to be more economical now that his only in．come is a small pension．
24．historical和historic
historical"有關(guān)歷史的"，“歷史的”，the historical period歷史階段；historical personage歷史人物。‘historic“歷史上有名的，有歷史意義的”，historic town歷史名城。
25．infer和imply
infer"猜想，臆測”，“推斷”；infer a motive from an effect從效果推知動機。
imply“含有……的意思”；Do you realize what his words imply?你理解他說話的含意嗎?I do not imply that you are wrong．我的意思不是說你錯了。
26．intense和intensive．
intense“激烈的，強烈的”，“緊張的”an intense light強烈的燈光；intense heat酷熱；an intense life奮發(fā)圖強的生活。
intensive“加強的，集中的”；“深入細(xì)致的，徹底的”；an intensive bombardment密集炮擊；an inten—sive study徹底的研究；an intensive reading精讀(opp．Extensive reading泛讀)。
27．a(chǎn)pt和prone
它們都具有“tending to 0r in the habit of¨的意思，但是prone只用于人。Elderly people are prone t0 falls，often because of arthritic joints or dizziness．
28．100se和lose
loose"松的，寬的”。
lose"丟失”；lose oneg balance失去平衡，跌倒；lose oneg head被搞糊涂。
29．magical和magic
它們都和magic有關(guān)系，但是magical也有"wonderful，entrancing’的意思。
30．masterly和masterful
masterly(showing great skill or the skill 0f a master)“熟練的；名家的”。
Masterful(showing power or authority)“主人派頭的，專橫的”；Youie so strong and masterful.