Expressions: 'at night' vs. 'for night'

[Mick]

English Grammar Tests, Elementary Level

ESL/EFL Test #51 "English Grammar Exercise", question 9

Do you lock the front door ......... night?

(a) for
(b) at
(c) on
(d) from

English Grammar Tests, Elementary Level

ESL/EFL Test #51 "English Grammar Exercise", answer 9

Do you lock the front door at night?

Correct answer: (b) at
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right or wrong - expression: 'at night'

Mick

[Yankee]

.
Yes, "at night" is correct.
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"Nearly all men can stand adversity, but if you want to test a man's character, give him power." ~ Abraham Lincoln

[Tae_Way]

why not for?

[NinaZara]

tae_way,

If you close a door, won't you be doing it for yourself/your own safety?Why would you want to close the door for "night"? Unless there's a person called "Night".

[Conchita]

Welcome, Tae Way!

You could also lock the door for the night, though, meaning during the night.

[Stefanessa]

As a conclusion, what expression must we use at last "at night, for night or for the night"?

[Alan]

Hi,

I would recommend 'at night' in the test sentence. 'For the night' suggests that you have done something that will be effective for the rest of the night as in: The animals have all been put into the enclosure for the night and will be let out early in the morning.

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

[Beeesneees]

'At night' is correct in the test question above.

at night = in the night-time.

for the night = for the duration of the night.
through the night = throughout the duration of the night.

'for night' is incorrect.
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Cheers m' dears!