“He's got a great work ethic.”
You coach a high school baseball team. You're talking to the father of one of the players. This player tries really hard to improve in practice. You say this.
He's got a great work ethic.
People often use expressions like "in 2 weeks" approximately. So it can be hard to know if someone means exactly 2 weeks or about 2 weeks. When you want to specify an exact day, use phrases like "a week from tomorrow" or "two months from today":
The school dance is only a week from tomorrow. Do you have anyone to go with?
This works for talking about the future. Talking about the past uses a different phrase:
We first met four years ago today.
p>There's no difference in meaning between "has got ___" and "has ___". You could also say:
He has a great work ethic.
The choice between "has got" and "has" depends on where you're from. "Has got" is more common in British English. In American English, "has ___" is more common but "has got" is also used in more casual speech.
A person with "a good work ethic" works very hard. This can be for school, sports, or a job.
An "ethic" is a philosophy or set of rules that a person decides to follow. So when you say that someone "has a good work ethic", it really means that they have a good attitude or philosophy about work. They believe that it's important to work hard.
Having "a good work ethic" is a good thing, so you shouldn't use this phrase to talk about someone who works too much. To talk about a person that works too much, say:
She's a workaholic.