The 22-year-old has been widely hailed for his impressive start to the season but the England international has only scored once in 10 Premier League appearances.
“Goals and assists make you un-droppable and I know there are great players all vying for two wing spots at Spurs so I need to get more goals and assists to cement my place in the team and not give the manager an excuse to drop me,” Townsend told TalkSport.
“I’ve got to keep playing well whenever given the chance and try and force my way onto the plane next summer,” Townsend told the FA’s website.
“We’ve got a big squad because we’ve got fantastic players. Every single one of us is going to be trying to impress in training and in the games to try and get on that plane.
“There aren’t too many other opportunities before the summer to play for England and impress the manager so everyone is going to be giving 100 per cent to catch the manager’s eye.”