51.With the increasing unemployment rate,workers who are 50

51.With the increasing unemployment rate,workers who are 50 to 60 years old are usually the first to be_____.A) laid aside C) laid outB) laid up D) laid off52.People's expectations about the future may have more influence on their_____ sense of well-being than their state does.A) primitive C) currentB) modern D) initial 53._____by the superstars on television,the young athletes trained hard and played intensely.A) Imitated C) ImposedB) Insured D) Inspired54.The physical differences between men and women can be_____ directly to our basic n as hunters and child-bearers.A) switched C) pursuedB) traced D) followed55.Many women still feel that they are being_____ by a male culture,particularly in the professional services sector.A) held out C) held forthB) held on D) held back56.The technological advances made it possible for the middle classes to enjoy what had once been_____ only to the very rich.A) manageable C) affordableB) acceptable D) measurable 57.After working all day,he was so tired that he was in no___ to go to the party with us.A) mood C) senseB) emotion D) taste58.It is clear that the dog has a much greater____ of its brain devoted to smell than is the case with humans.A) composition C) compound B) proportion D) percent59.There is already clear_____ to show that plants and animals are being affected by climate change.A) witness C) identityB) evidence D) certification 60.Numerous studies already link the first meal of the day to better classroom____.A) function C) performanceB) behavior D) display