7、organization答案 B [细节理解题。由第一段中的“Theyalsolivenearlyeverywhere,exceptonfrozenmountaintopsandaroundthepoles.”可知选B。]2.Antscanusepheromonesfor________.A.escapeB.municationC.warningenemiesD.arranginglabor答案 B [细节理解题。由第二段中的“Whereweusesoundandsighttomunicate,antsdependprimarilyonpheromones(