3. What types of skiing contain jumps?

Решение:

Согласно тексту, прыжки (jumps) содержатся в следующих видах катания:

• Alpine freestyle: «...акробатики such as jumps in the air...»
• Freestyle (newschool): «It uses jumps, tricks, flips both forwards and backward.»
• Nordic jumping (or ski flying/jumping): «Skiers slide down a ramp to jump as far as possible in the air...»

Ответ: Alpine freestyle, Freestyle (newschool), Nordic jumping (or ski flying/jumping).