[解析]
36.A 考查上下文理解判断能力.根据下文Use these games to help teach your dog how to play可知,使用这些游戏来帮助教你的狗如何玩.前文应是:你也可以包含一些训练游戏.故选A.
37.D 考查上下文理解判断能力.根据下文When you are ready,call your dog to come to you可知,当你准备好了,可以叫你的狗来找你.前文应是:那么,去找个好的躲藏地.故选D.
38.C 考查上下文理解判断能力.根据下文Play indoors with a soft toy or outdoors in a fenced﹣in area with a ball or disc可知,在许多地方玩这个游戏,前文应是:去取的游戏到处可以玩.故选C.
39.E 考查上下文理解判断能力.根据前文First,have your dog stay out of sight.Then,hide her favorite treats in different places around the room可知,这是游戏的步骤.下文应是:把你的狗带来,让它去找.故选E.
40.G 考查上下文理解判断能力.根据下文When other dogs or people are around,it may create a dangerous distraction可知,当其它的狗或人在周围时,它可能产生分神.前文应是:当和你的狗玩耍时要当心周围的环境.故选G.