Write a question about the following article: For the third straight season, the Packers started off with a 1-2 record. The Lions' defense dominated the game as the Packers failed to score any points in the second, third, or fourth quarter. The Packers crossed midfield on only three drives, and they had only one such drive in the second half. The Packers' 7 points represented the lowest total that the team scored in a game that Rodgers finished. Rodgers 162 passing yards was his lowest since the 2008 season.

Question about the article:
How many times did Packers cross the midfield in the first half?