初中英语否定前缀整理归纳（初中英语所学前缀后缀的记忆及运用）

初中英语否定前缀整理归纳（初中英语所学前缀后缀的记忆及运用）5. ir-：irregular。4. dis-:dislike disappointed discover discourage dishonest disappear disbelief，disadvantage disabled。1. un- :unhappy unusual unfair unlike unfriendly uncomfortable uncrowded uneasy unexpected unlucky unbelievable unable，unforgettable。2. im-:impolite impossible。3. in-:inexpensive incorrect informal。

大凡英语学习者，都会觉得单词难记。因此很多英语学习先行者总结出不少行之有效的记忆单词方法，其中一种方法就是利用构词法记单词。利用构词法记单词确实是一种很有效的方法，符合英语词汇的构成规律。常见的构词法有三种，其中一种叫派生法。所谓派生法，就是在词的前面加上前缀或在词的后面加上后缀构成另一个词的方法。本文针对初中所学的前缀后缀，进行归类，来个大汇总，方便初中生尤其是即将参加中考的学子们记忆，并且通过例句讲解，帮助大家掌握这些词的用法。这是本文区别于其它很多同类文章所不同的地方，严格从考纲出发，所列举的词100%是初中所学，是中考考纲所要求掌握的，希望我的付出可以帮到更多的同学。

一、前缀的作用及所学的前缀

前缀用在词根前面以改变词的意义，一般不改变词性。初中所学的前缀有：

一）否定前缀

1. un- :unhappy unusual unfair unlike unfriendly uncomfortable uncrowded uneasy unexpected unlucky unbelievable unable，unforgettable。

2. im-:impolite impossible。

3. in-:inexpensive incorrect informal。

4. dis-:dislike disappointed discover discourage dishonest disappear disbelief，disadvantage disabled。

5. ir-：irregular。

二）其它前缀

1. re-(表示再，又）：review recycle return reuse reusable research。

2. inter-(表示在。。。。。。之间，相互）：interview internet international。

3. under-（表示低于）：underwear underground。

4. bi-（表示两）：bicycle。

如I don’t feel happy也可以说成I feel unhappy。上面的unlike是介词，而dislike是动词，在使用时必须引起注意。另外，含有否定前缀的词用在反义疑问句中，后面简短的一般疑问句照样要用否定的，如:

1. That’s impossible isn’t it?

2. He feels unlucky doesn’t he?

二、后缀的作用及所学的后缀

后缀用在词根后面以改变词性。初中所学的后缀有：

一）动词变成名词

在一个动词后面加上某一个后缀，使之变为名词。

1).动词 er/or/ist/ress变成名词（表示动作的执行者）

A.teach-teacher work-worker read-reader think-thinker perform-performer wait-waiter sing-singer play-player cook-cooker record-recorder keep-keeper listen-listener farm-farmer climb-climber，lead-leader speak-speaker report-reporter clean-cleaner help-helper。

B.write-writer drive-driver dance-dancer ride-rider rule-ruler manage-manager make-maker。

C.run-runner win-winner travel-travel（l）er。

D.visit-visitor act-actor invent-inventor compete-competitor translate-translator direct-director。

E.tour-tourist。

F.wait-waitress act-actress。

2).动词 tion变成名词

act-action suggest-suggestion communicate-communication invite-invitation pollute-pollution compete-competition predict-prediction invent-invention prepare-preparation protect-protection celebrate-celebration direct-direction educate-education examine-examination inspire-inspiration introduce-introduction produce-production graduate-graduation pronounce-pronunciation。

3) .动词 ing变成名词

draw-drawing paint-painting build-building say-saying cross-crossing happen-happening end-ending mean-meaning feel-feeling begin-beginning open-opening。

4) .动词 ment变成名词

agree-agreement disagree-disagreement develop-development improve-improvement encourage-encouragement punish-punishment achieve-achievement manage-management。

5）.动词 ance变成名词

appear-appearance disappear-disappearance。

6）.动词 sion变成名词

express-expression discuss-discussion decide-decision。

在句子中，如果作主语、宾语、表语，就要把动词改为名词。我们来看看，

用括号内所给词的适当形式填空：

1. He is a basketball_______(play).

2. Thank you for your_________(invite).

3. The teacher is pleased with his ________(improve)in English.

二）名词变成形容词

在一个名词后面加上某一个后缀，使之变为形容词。

1）.名词 ful变成形容词

thank-thankful help-helpful care-careful use-useful hope-hopeful beauty-beautiful wonder-wonderful pain-painful harm-harmful success-successful truth-truthful。

2）.名词 less变成形容词

help-helpless，hope-hopeless use-useless care-careless harm-harmless。

3）.名词 y变成形容词

rain-rainy wind-windy snow-snowy sun-sunny fog-foggy ice-icy health-healthy luck-lucky noise-noisy sleep-sleepy thirst-thirsty hunger-hungry。

4）.名词 ly变成形容词

week-weekly love-lovely friend-friendly live-lively。

5）.名词 al变成形容词

person-personal music-musical tradition-traditional center-central nature-natural culture-cultural digit-digital accident-accidental education-educational profession-professional nation-national medicine-medical environment-environmental。

6）.名词 ous变成形容词

danger-dangerous humor-humorous fame-famous，mystery-mysterious。

7）.名词 ern变成形容词

east-eastern west-western south-southern north-northern southeast-southeastern。

8）.名词 en变成形容词

wood-wooden wool-woolen gold-golden。

9）.名词 ish变成形容词

fool-foolish self-selfish。

10）.名词以ce结尾，把ce改为t变成形容词

silence-silent patience-patient confidence-confident importance-important convenience-convenient。

在句子中，如果作表语、定语或宾补时，很可能要把名词变成形容词。大家再看：

1. Look after yourself and keep_______(health).

2. They are talking about_____(healthy)problem.

3. You should eat______(health)food.

4. Playing basketball keeps me_____(health).

5. We should do more sport and eat______(health).

三）动词变成形容词

动词的现在分词、过去分词可作形容词，或在动词后加上某些后缀也可变成形容词。

1) .动词 ing（即现在分词）变成形容词

move-moving care-caring understand-understanding burn-burning freeze-freezing fascinate-fascinating embarrass-embarrassing surprise-surprising bore-boring tire-tiring excite-exciting interest-interesting disappoint-disappointing frighten-frightening，boil-boiling，fall-falling miss-missing。

2）.动词 ed（即过去分词）变成形容词

move-moved burn-burned（或burnt） freeze-frozen embarrass-embarrassed disappoint-disappointed

surprise-surprised bore-bored tire-tired worry-worried excite-excited interest-interested frighten-frightened boil-boiled fall-fallen break-broken lose-lost injure-injured marry-married。

3）.动词 able变成形容词

understand-understandable forget-forgettable enjoy-enjoyable comfort-comfortable value-valuable believe-believable。

动词和形容词在句子中的作用决然不同，在使用时要很好根据实际情况作出变化 当然也要很好区分现在分词与过去分词所作的形容词，现在分词表示主动或正在进行，多数形容事物；过去分词表示被动或已经完成，多数形容人。如；

1. I am___(bore)with the____(bore)job.

2. He found the news______(excite).

3. Only when something is lost do we find it______(value).

四）形容词变成副词

除了一些形容词、副词同形的词如early/late/fast/high/far/hard等以外，大多数形容词后面加上ly变成副词，不过有些要作改变，注意不同的变化情况。

1).careful-carefully real-really wide-widely wise-wisely polite-politely loud-loudly gradual-gradually general-generally most-mostly cheap-cheaply special-specially certain-certainly sudden-suddenly recent-recently different-differently complete-completely beautiful-beautifully total-totally slow-slowly quick-quickly。

2).happy-happily easy-easily heavy-heavily angry-angrily lucky-luckily healthy-healthily noisy-noisily。

3).simple-simply，gentle-gently possible-possibly probable-probably comfortable-comfortably terrible-terribly。

4).true-truly。

形容词作表语、定语、宾补，而副词作状语。试对比：

1. That thing made（使） me happy.（形容词作宾补）

2. They are making（制作） cards happily.（副词作状语）

3. We live a happy life.（形容词作定语）

4. She seems very happy.(形容词作表语）

五）形容词变成名词

形容词后面加上后缀ness/th/ity等可变回名词。

1) .good-goodness kind-kindness ill-illness sick-sickness sad-sadness shy-shyness fair-fairness busy-business careful-carefulness careless-carelessness。

2) .warm-warmth long-length wide-width true-truth young-youth。

3) .able-ability active-activity creative-creativity popular-popularity。

形容词和名词作用不同，在使用时要多加注意。我们来看这两道选择题：

1.This time he failed the exam because of his_____.

A. care B.carefulness C. careless D. carelessness

2.She helped to look after a/an____man.

A.ill B. sick C. illness D.sickness

以上对现行初中课本（人教版）所出现的前缀后缀进行了总结，并对其用法进行了很好的剖析，对初中生的英语学习应该有一定的帮助。