Does friendship cause similarity of smell,or does similarity of smell cause friendship?Thethree researchers investigated whether there were positive interactions between strangers by usingthe e-nose measurement.They collected the smells of another 17 volunteers with e-nose,and thenasked the participants to play a mirroring game.That game involved silently mirroring another individual'sOverlapping Two Circleshand movements.Participants were paired up by chance and theirreactions were recorded.After each interaction,they demonstratedhow close they felt to their fellow gamer by overlapping two circles(one representing themselves,the other their partner).The moresimilar the two electronic smell signatures were,the greater theoverlap.Participants also rated the quality of their interaction inthe game along 12 dimensions of feelings that define friendship.Similar smells were consistentwith positive ratings for nine of these dimensions.However,two participants smelling alike did notmean they were any more accurate at the mirroring game than others.Why smell might play a role in forming friendships remains obscure.Other qualities related tobeing friends,including age,appearance,and education,are either immediately obvious orrapidly become so.But while some individuals have strong body smell,many do not.It ispresent.But it is subliminal(潜意识的).Dr Ravreby guesses that there may be“an evolutionaryadvantage in having friends that are genetically similar to us".Body smell is known to be linkedwith genetic make-up.Smelling similar to others may thus allow subliminal inferences aboutgenetic similarity to be drawn.37.What can we learn from the first experiment?A.Friends smell like one another.B.Friends tend to sniff each other.C.The smell can be judged on five dimensions.D.The T-shirts of friends smell the same to each other.38.The mirroring game is designed to_A.enrich the dimensions that define friendshipB.prove strangers smell more alike after positive interactionsC.test whether strangers can develop friendship in the processD.explore the relationship between similarity of smell and friendship39.What does the underlined word "obscure"in the last paragraph probably mean?A.Unacceptable.B.Unchanged.C.Unclear.D.Unrealistic.40.What can we infer from this passage?A.Body smells have effects on genetic make-up.B.People who have similar smells may have similar genes.C.Body smells become similar after people becoming friends.D.Two participants smelling alike performed better in the game than others.高二英语试卷第6页(共10页)