In recent weeks, American Airlines introduced new awards for one-way flights; United dropped its .200175 fees for booking an award within three weeks of travel; and Delta Air Lines made it easier for frequent fliers to retain their VIP status. Carriers have also been suspending mileage (里程) offers, including double-mile promotions, and have even granted bonuses for booking online. Those who follow the programs describe the changes as a slight shift in a more consumer-friendly direction, giving customers more ways to earn miles. "What we're seeing is a bit of resurgence (复苏) on the airlines' part in focusing on their frequent-flier programs," said Tim Winship, who tracks loyalty programs for But he added that the issue members care about most—being able to use their miles for free tickets—remains a challenge , especially with planes flying nearly full. Randy Petersen, founder of the frequent-flier sites and , said 2008 was a record year for award redemption (兑现), which he attributed to travelers using miles for more common trips, like visits to relatives in foreign countries. "In a good economy , everyone wants to use their miles to go to Hawaii, London or San Francisco," he said. "But when the recession hit, award redemption really started to spread out because people were using their miles not as much for vacation as necessary travel. There have also been changes in financial regulations that require airlines to account for unused frequent-flier miles as a responsibility, which has motivated carriers to make awards easier to obtain.A) attributedB) challengeC) describeD) earnE) easierF) economyG) includingH) introducedI) justifiedJ) legislationK) motivatedL) necessaryM) nourishN) sustainableO) temptation

  After years of shrinking benefits and increasing fees, frequent-flier programs are courting their most loyal customers again.

  In recent weeks, American Airlines  introduced new awards for one-way flights; United dropped its 75 fees for booking an award within three weeks of travel; and Delta Air Lines made it  easier for frequent fliers to retain their VIP status.

  Carriers have also been suspending mileage (里程) offers,  including double-mile promotions, and have even granted bonuses for booking online.

  Those who follow the programs  describe the changes as a slight shift in a more consumer-friendly direction, giving customers more ways to  earn miles.

  "What we're seeing is a bit of resurgence (复苏) on the airlines' part in focusing on their frequent-flier programs," said Tim Winship, who tracks loyalty programs for But he added that the issue members care about most—being able to use their miles for free tickets—remains a  challenge , especially with planes flying nearly full.

  Randy Petersen, founder of the frequent-flier sites and , said 2008 was a record year for award redemption (兑现), which he  attributed to travelers using miles for more common trips, like visits to relatives in foreign countries.

  "In a good  economy , everyone wants to use their miles to go to Hawaii, London or San Francisco," he said. "But when the recession hit, award redemption really started to spread out because people were using their miles not as much for vacation as  necessary travel.

  There have also been changes in financial regulations that require airlines to account for unused frequent-flier miles as a responsibility, which has  motivated carriers to make awards easier to obtain.

A)  attributed	B)  challenge	C)  describe	D)  earn
E)  easier	F)  economy	G)  including	H)  introduced
I)  justified	J)  legislation	K)  motivated	L)  necessary
M)  nourish	N)  sustainable	O)  temptation