1、 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.

2、 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

3、 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.

4、 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.

5 、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.

6 、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.

7 、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.

8 、historical和historic

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。

9、 impassable和impassible

impassable"不能通行的"，"不可逾越的";an impassable swamp不能通行的沼泽地。

impassible"不感疼痛的;无动于衷的";an impassible God无动于衷的神。

10、 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?你领会他说话的含意吗?

I do not imply that you are wrong.我的意思不是说你错了。

11、 impractical和impracticable

impractical(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.

12、 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。

13、 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"。

14、 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(opp. extensive reading泛读)。

15、 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。

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