Good at vs. good on

[ronny]

English Grammar Tests, Elementary Level

ESL/EFL Test #75 "Adjective Prepositions Constructions", question 5

Lucas is very good ......... drawing.

(a) at
(b) on
(c) to
(d) with

English Grammar Tests, Elementary Level

ESL/EFL Test #75 "Adjective Prepositions Constructions", answer 5

Lucas is very good at drawing.

Correct answer: (a) at

Your answer was: incorrect
Lucas is very good on drawing.
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Lucas is very good on drawing ----why is it wrong?

[Alan]

Hi,

The expression good at is used when you are talking about proficiency in an activity. Good on is usually showing a good knowledge of a subject.

She is very good at swimming.

He is very good on football.

Alan
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English as a Second Language
You can read my ESL story Present Simple

[Rguerrero]

Hi!
It seems that 'good at' is much more frequently employed that 'good on', isn't it?
At least, I found few examples of 'good on' in the internet.
Thanks!

Rodrigo

[Lourdes]

Hi Alan:
In this explanation I cann't understand the difference between "good at-good on" please send more detail about it. I need it. Thank you.

[Alan]

Hi Lourdes,

I can only repeat what I wrote earlier - 'good at' suggests that you have a particular ability at something and you do it well as in: Good at public speaking/at cooking/at learning languages and so on.

'Good on' suggests that you know a lot about something as in: Good on photography/on astronomy/on politics and so on.

Alan
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English as a Foreign Language
You can read my EFL story Progressive Forms