Student Exchange Programs

So i think i might be studying abraod next summer i jus have a few questions? I probably want to go to italy so if i went during the american summer would i go to a regular public high school in italy because idk what there school months are like there? Also i dont not speak any italian would i still be able to go? and to a regular high school? Also does any1 know of any really good study aborad/exchange student programs?? Thanks! Also what countries do you recommend?