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2.2 Prefix ที่เติมหนาคําแลว ทําใหคํานั้นมีความหมายแตกตางออกไปในแตละคําตาม

ความหมายของ prefix นั้น ๆ เชน

Prefix Meaning Example

re- again rewrite, revisit, rearrange, reform, repeat

re-, retro- back return, replace, replay, repay

inter- between, among, together interact, interchange, international, interview

ex- former, previous ex-king, ex-teacher, ex-wife, ex-war

anti-, contra- against antifreeze, anti – bacterial, antisocial

pro- in favor of pro – British, pro – German, pro – hand

2.3 Prefix ที่เติมแลวบอกความหมายปริมาณ (quantity) และขนาด (size) เชน

Prefix Meaning Example Meaning

mono- one monorail a railway with a single rail

bi- two, twice, both bicycle two – wheeled machine for riding

bicentennial on happening once in 200 years

semi- half or part semicircle half a circle

multi- many multiform having several different shapes

Activity 3 Prefix : Try to figure out the meanings of the bold typed words in the

following sentences.

กิจกรรมที่ 3 จงหาความหมายของคําที่พิมพตัวหนาของประโยคตอไปนี้

1. Could you repeat what you said? I think I misunderstand ………………………..

2. My family disapproves of my smoking …………………………………………...

3. Just reading English in an ineffective way to learn the language. You need to practice

speaking and listening also. ………………………………………………

4. The Health Department warned us of the impurity of the water in the lake. ………

5. You should not lend your camera to that irresponsible young man. ……………….

6. I don’t like to read his handwriting because it is illegible. …………………………