Below is an instruction that describes a task. Write a response that appropriately completes the request in Chinese. Please answer in Chinese.

### Instruction:
 特纳想要玩过山车3次，弹射器2次，摩天轮1次。坐过山车需要4张票，坐弹射器需要4张票，坐摩天轮需要1张票。特纳需要多少张票？


### Response:
 坐过山车3次需要3 x 4 = <<3*4=12>>12张票。
坐弹射器2次需要2 x 4 = <<2*4=8>>8张票。
所以，特纳总共需要12 + 8 + 1 = <<12+8+1=21>>21张票。