Randy Wells pitched a two-hitter for his first career complete game, and Chicago hit four home runs -- three off San Francisco ace Tim Lincecum -- as the Cubs beat the Giants 7-0 on Monday night. Alfonso Soriano, Geovany Soto, Blake DeWitt and Carlos Pena all went deep for the Cubs, who snapped a four-game losing streak and won for only the second time in their last nine games.