Answer based on context:

The Seahawks' eighth game was an NFC duel with the Giants at home. The Giants took control with RB Ahmad Bradshaw getting a 2-yard TD run, followed by Eli Manning's 46-yard TD pass to WR Hakeem Nicks, followed by Bradshaw's 4-yard TD run. In 2nd quarter QB Eli Manning found WR Steve Smith and TE Kevin Boss on 6 and 5-yard TD passes respectively. The lead was expanded by kicker Lawrence Tynes who made a 25 and a 20-yard field goal. Seattle made their only score of the game with QB Charlie Whitehurst completing a 36-yard TD pass to WR Ben Obomanu. With the loss, Seattle fell to 4-4. This also marks the first time that they lost to the Giants at home since 1981.

How many touchdowns were scored off passes in the first half?
3