I'd be surprised to hear "all the afternoon" in Matterhorn's example sentence (post #6) - or in any context.I think - I hope a BE speaker will chime in - that "all the afternoon" is more common in BE. It's not unknown in AmE, but as Florentia has explained, "all afternoon" is the way we'd ordinarily say it.
As noted above, "all the afternoon" is not how we would normally say it. "Lunch gives us energy for the whole afternoon" would be a better choice.Is this sentence right? 'Lunch gives us energy for all the afternoon.'
Can 'the' be omitted in the sentence above?