Our （）sensitivity decreases with age. By age 60 ， most people have lost 40 percent of their ability to smell and 50 percent of their taste buds.
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「句意」我们的感官能力随着年龄的增长而下降。比如说，到60岁的时候，多数人失去了他们40%的嗅觉能力和50%的味觉能力。
「难点」sensible意为“明智的，合情理的”;senseless意为“失去知觉的，不省人事的“;sensitive意为”敏感的“;sensory意为”感觉的，传递感觉的“。
Itisnotuncommonforthere_____problemsofcommunicationbetweentheoldandtheyoung.
“Whatcoursesareyougoingtodonextsemester”
“Idon’tknow.Butit’sabouttime_____onsomething.”
Josephwasverylucky（）withhislife;healmostdidnotgetoutoftheroom.
Allofuswouldhaveenjoyedthepartymuchmoreifthere_____quitesuchacrowdofpeoplethere.