affect“影响”vt.，它的第二个意思是“假装”，Though she affected indifference，I knew she was really very upset.
effect n.“结果”，“效力”。vt.“产生”，“导致”，它比“to cause，to bring out”更为正式。His aim was to effect a radical change in the party structure.
8.all ready和already
all ready意思是“completely prepared”
already“已经”。He had already had his lunch.
9.altogether和all together
altogether（in total）“总共”
all together意思是“in a group”。如：We put the sheep all together in one field.这两个词还可以分开。We put all the sheep together in one field.
10. allude和elude
allude“暗指”，“暗示”，“（婉转）提到”。
elude（to avoid or escape）“闪避，躲避”。如：to elude sb.‘s grasp逃脱，没有被逮住；to elude the law规避法律。The meaning eludes me.那个意义我摸不透。
11.illusion和delusion
illusion“幻觉，错觉”be under no illusion about sth.对某事不存幻想。
delusion“欺骗，迷惑”He suffers from the delusion that he‘s attractive to women.他糊里糊涂地认为自己对女人很有吸引力。
12.amended和emend
amended（to alter or add to something）“订正，改正”，“修正（议案等）”。an amended bill修正案；amend one‘s ways改过自新。
emend（to correct errors in）“校订”。emend the text of a book校勘某书；He emended the typescript before sending it to the printers.在交付印刷之前他校正文稿。
13.amicable和amiable
这两个词都是指“友好的”意思。
amicable“友好的，亲切的”指行为或情景。The discussions were amicable，though businesslike.讨论虽然是商业形式，但也是友好的。
amiable“可爱的，和蔼可亲的”多用于修饰人。Many people are afraid of him，though I found him to be perfectly amiable.虽然我发现他特别和蔼可亲，但还是有很多人害怕他。
14.assent和ascent
assent可用作“agreement”“同意”或“agree”“同意”。
ascent n.“上升，晋升”。the ascent of mountain登山。
15.avert和avoid
avert“防止，避免”。
avoid“回避，逃避”。avoid bad company避免和坏人来往；I cannot avoid seeing him.我不能不见他。
16.besides和beside
besides意思是“in addition to”“加之，还有，另外”；而beside“在……旁边”，“在……一侧”。Duncan is the tall man standing beside my father.站在我爸爸旁边的高个子男子是邓肯。
17.coherence和cohesion
coherence“统一，一致性”；cohesion“结合力，团结”。the cohesion of molecules分子的结合力。
18. 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。
19.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 one‘s will强迫人服从自己。
20.complement和compliment
complement“补足（物），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。
21.confident和confidant
confident“深信，确信，自信”。
confidant“心腹朋友”。She has no close confidant to whom she can turn for advice or help.她没有知心朋友来帮助或是劝告她。
22.continual和continuous
continual“连续，继续”：“频繁的”；continual bouts of toothache一阵接一阵的牙痛。（这中间可能有停顿或间断。）
continuous“连续”（指从不间断的）；We‘ve had three weeks of continuous rain.我们这里连续三周下雨不停。
23.might和could
might表明“possibility”。
could用来表明“permission”。Mum said we could（might）go to the football match.
24.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。
25.creditable和credible
creditable“声誉好的，可称许（赞扬）的”；credible“可信的，可靠的”He‘s the only one without a credible alibi（辩解，托辞）。他是唯一一个没有可信托辞的人。
26.decisive和decided
decisive“果断的，断然的”；decisive measures断然的措施。
decided“明确的，无疑的”；a decided success明显的成功。
27.defective和deficient
defective（having a fault or flaw）“有缺陷的”。
deficient（lacking in what is needed）“不足的”；be deficient in欠缺。
28.definite和definitive
definite（certain or clear，not vague）“明确的，一定的”。
definitive（authoritative，that cannot be improved）“限定的，决定性的，最后的”；definitive host宿主；definitive organs定形器官；definitive sentence最后判决。
29.dependant和dependent
dependant n.（one who depends on another for support）受赡养者。
dependent adj.“依靠的，依赖的”；He‘s still dependent on state benefit. The rate of relief is dependent on one’s income.
30.discreet和discrete
discreet“考虑周到的，慎重的”。
discrete“分离的，分裂的”；On closer examination，we find that the pattern is formed from thousands of discrete dots of colours.
31.distinctive和distinct
distinctive“有特色的”，“独特的”；
distinct“清楚的，明显的”；a distinct smell of alcohol on his breath；the distinctive stripes of the zebra.
32.dual和duel
dual“二重的”；dual personality双重人格；dual control双重管辖；
duel“决斗，竞争”；fight a duel with sb.与某人决斗；challenge sb. to a duel向某人提出决斗；a duel of wits斗智
33.eatable和edible
eatable a.“可食用的，可吃的”；n.[pl.]“食物、食品”。
edible a.“适合食用的，可以吃的”；n.[pl.]“食品”。
在指吃的时候二者可通用：The toast was burnt and barely eatable/edible.但在其他情况下不一样。If something is eatable，it may be eaten（though it may not be safe or desirable to do so）；but，if something is edible it is safe to eat.
34.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 blockade经济封锁；economical“节俭的，经济的”；He‘s had to learn to be more economical now that his only income is a small pension.
35.evoke和invoke
evoke“唤起，引起”；evoke admiration引起羡慕。
invoke“祈求（神灵）保佑，乞灵于”，行使（法权）；The shaman invokes the spirits of their ancestors. If our case fails in the national courts we will invoke the European Declaration on Human Rights.
36.fatal和fateful
fatal“causing death or disaster”“致命的”；a fatal disease不治之症；a fatal wound致命伤。
fateful“crucial，significant，deciding one‘s fate”“重大的”，“决定性的，决定命运的”；On that one fateful day in October，millions of pounds were wiped off the value of shares.
37.fictional和fictitious
fictional“虚构的，小说的”。
fictitious“虚构的，编造的”（denotes something that is not real and has been created with the intention of deceiving others）；He gave the police a fictitious name.
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。
46.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.
