I would like to ask why the following is considered to be a finished action " They've never heard of Alexandre Pires. " while this sentence " She hasn't been playing many concerts lately." is considered to be an unfinished one. I ask because they are stated in the Summit 1 - Longman Pearson Teacher's Edition and Lesson Planner page 17.
I don't understand why the present perfect in "have never heard" is finished. I think "have never heard' is an unfinished action becuase up to now they still do not hear of Alexandre Pires.
In many cases, both the present perfect and the present perfect progressive can be used with the same or almost the same meaning. This would be true of the verb "play" in your second example sentence:
1) She hasn't been playing many concerts lately =
2) She hasn't played many concerts lately.
It is true that 1 emphasizes the continuous action of her periodic playing in concerts, but really, the sentences do mean the same.
As for ""They've never heard of Alexandre Pires," the verb is different.
"To hear of someone" means to have knowledge of that person's existence. This kind of verb – one that means know
or hear of,
and a few others don't appear in the progressive.
In addition, there is the word "never" in "They've never heard of." "Never" doesn't appear in the present perfect progressive:
I've never been eating sushi. ïƒ I've never eaten sushi.
She has never been sleeping in a tent. ïƒ She have never slept in a tent.
She has never been playing many concerts ïƒ She hasn't been playing many concerts / She has never played many concerts.
"Never" means up to a certain point; that's why the action is considered finished, at least for the moment. "Lately" means recently, but there is an opportunity to do this action again. (This is not true for verbs like know
And, because of "lately," you wouldn't have "never" in the same sentence. So, the sentence about playing the piano is either 1) or 2) above.