Unit 7In the mountain bike raceNew wordsEntry入口enter 进入mail邮寄helmets头盔pads垫子cycling 骑自行车游玩shoes 鞋rider 骑（马，车）的人 competitor对手sign标志，符号学习新句型Do you know the rules in the race?Yes,I do.No,I dont.Do you know the rules in the tennis race?Yes,I do.Do you know the rules in the soccer race?No,I dont.Do you know the rules in the table tennis race?Yes,I do.Do you know the rules in the basketball race?No,I dont.Do you know the rules in the volleyball race?Yes,I do.Do you know the rules in the tennis race?No,I dont.
