【一起考雅思】拼写规则 ---- Rule 3 前缀 Prefixes

jeswu (caichi321) 铁杆会员
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发表于:2015-07-28 16:44 [只看楼主] [划词开启]

A prefix is a word part added at the beginning of a base word.

Knowing Prefixes helps to imporve both your vocabulary and your spelling.


Some common prefixes are as follows:

Prefix    Meaning    Examples

ante-    before    anteroom[前厅接待室], antenatal[出生前的胎儿期的], antedata[提前发生的], entediluvian[洪水前的,上古的]

anti-    against    antidote[解毒剂], antibody[抗体], antidisestablishmentarianism[反对解散国教主义]海词的解释。。。。。。

auto-    self    automobile, autmation, automatic, autoimmune[自身免疫的]

bene-    good    benefit, beneficial, beneficiary[受益人], benefactor[恩人,捐助者]

bi-    two, twice    bicycle, bicameral, bi-weekly, biennial[两年一次的,两年生的]

bio-    life    biography[传记] biology, biosphere[生物圈],biochemistry, biotechnology

de-    away,down    depress, decrease, demerit, depreciate

dis-    not,no longer, away    disappear, disapprove, disavow[否认不赞成],disallow

ex-    out,no longer    exclude, expel, ex-wife, ex-president

im-    in, not    immense[巨大的广大的], immodest, immoderate[极端的], improper

intra-    within, between menbers of the same group    intramural[校内的,同一组织内的], intranet[内部网络], intrapreneur[企业内部的】

per-    entirely, through    perfect, pertain[关于,从属,适合]

pro-    for, take place of    prohibit, proclaim[声明,赞扬]

retro-    back    retrospect[回顾,追溯], retrograde

semi-    half, partially    semicircle[半圆形], semiautomatic


其他简单的我就不写了。包括in=not (incorrect); un = not, contrary to (unable, unhappy); inter = between, among (interact); mis= wrong, bad (misspell); re = again, back(retell,re-do); pre=before (prefix, pregame); post= after (postdate,postpone)


Hint: DO NOT double letters when prefixes are added to words.

However, a double consonant is needed when a prefix ends with the same letter as the beginning of the word.

Incorrect    Correct

disatisfied    dissatisfaction

mispelling    misspelling


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