NEF Advanced Word Formation Prefixes slide 169 ex-es 1,2

Prefixes 

1. Negative prefixes 

a. Put the words in the list in the right column to make negatives. 

im- immobile, immoral, impersonal, impractical
il- illegal, illegitimate, illiterate, illogical 
ir- irrational, irregular, irrelevant, irreplaceable
in- inappropriate, incapable, incoherent, incompetent, inhospitable
un- unattractive, undo, uneasy, unofficial
dis- disagree, discontinue, disembark, dishonest

2. Prefixes which add other meanings

a. Read the sentences carefully and match the highlighted prefixes to their meanings A-T.

1. My daughter has outgrown most of her clothes- she needs a bigger size. D. further, better,  bigger
2. A lot of common English verbs are monosyllable, like get, have, give, etc. I. one
3. After being proven innocent, he was reinstated in his old post. T. again
4. After the operation, I’ll have to go to the hospital once a week as an outpatient. L. outside, not inside
5. As a child, she was ill-treated by her stepmother and this had serious repercussions. Q. badly
6. I haven’t been feeling very well recently. The doctor told me to take multivitamins. C. more than one, many
7. I must have misunderstood you. I thought you said you didn’t want to come tonight. E. wrongly
8. I need to install a new antivirus on my computer. H. against
9. I was incredibly lucky on my flight to New York- I was upgraded to business class! O. higher, towards the top
10. The local police are trying to defuse racial tension in the community. N. remove or reduce
11. My brother did a postgraduate course in translation and interpreting. K. after
12. A ceasefire is an essential precondition for any negotiations. M. before
13. My sister is overweight- she goes through periods of compulsive overeating. B. too much
14. The committee has biannual meetings in October and March. G. two, twice
15. Several different species now coexist peacefully side by side. P. together
16. This work is totally substandard. It’s just not acceptable. F. below
17. There will be an intergovernmental conference to look at climate change. R. between
18. They’re really understaffed at the moment because a lot of their workers are off sick. A. not enough
19. When he lifted her up, he seemed to have almost superhuman strength. S. above average
20. I’m not very good with my camera. I almost always use the autofocus setting. J. by yourself, by itself.