とは打って変わって says that something has changed completely from how it was
before: "in complete contrast to", "a world away from". It goes after a noun
for the earlier time or state, and the clause after it describes the new one.
、。
Completely unlike yesterday, today is perfectly clear.
、。
In a total change from the first half, the second half became an intense match.
、。
In a total transformation from when she first joined the company, she is now the team leader.
, the ます-stem form, says the same and is a little more
written. The phrase as a whole is bookish: news, narration, reports. In
conversation
or
is more usual.
とは打って変わって or と違って
とは打って変わって is about one thing before and after a sudden, complete
change: the weather, a mood, a person's manner. Two different things that
simply differ take , and so does a small difference.
、。
Unlike his older brother, the younger one is quiet.
- × 兄とは打って変わって、弟は静かだ → 兄と違って、弟は静かだ
Without とは, the verb describes the change itself, and 打って変わった can
stand before a noun.
。
His attitude changed completely and he became kind.
、。
After the match, he wore a completely different expression.