When traveling on a budget，every dollar counts.Unfortunately，the cost of tickets alone can make a serious hole in your savings.Don't let that stop you from taking your dream vacation，though.According to Jeff Klee，CEO of CheapAir.com，there is a “sweet spot” to get the biggest bang for your buck.
“The most important rule is fairly obvious: don't wait until the last minute，as that rarely works out，”he said in a statement.“But beyond that，you also want to be careful not to buy too early.”
Still，that's easier said than done.Finding the most costefficient time to book is tough.Luckily，somebody did the math—so you don't have to.Data crunchers(处理器) from the online travel ageney CheapAir.com surveyed over 917 million fares to determine the day with the cheapest rates.
Here's what they found：while prices tend to stay the same between 320 and 106 days before a trip，they start dropping at the 105day mark.That said，you might be tempted to book the moment prices drop.But hold on! You'll save even more money by booking precisely 70 days before your trip.According to CheapAir.com，you can save 48 percent of the ticket's total cost by using this trick.After that date，airfares will begin to increase again.And don't even think about booking any later than 20 days ahead of time，as prices will be soaring.
So，what are you waiting for？Start planning your next dream vacation，and book accordingly.Your wallet will thank you—guaranteed.
【语篇解读】 本文介绍了购买便宜飞机票的方法和策略。
1．When can we book our plane tickets to save the most money?
A．The later，the better.
B．As early as possible.
C．105 days before our trip.
D．70 days before our trip.
D [考查细节理解。根据第四段的内容尤其是第四句“You'll save even more money by booking precisely 70 days before your trip.”可知，旅行前第70天预订机票节省的钱最多，故选D。]
2．How much can the trick help us save if the ticket costs $400 totally?
A．$48. B．$192.
C．$208. D．$352.
B [考查细节理解。根据第四段第五句“According to CheapAir. com, you can save 48 percent of the ticket's total cost by using this trick.”并结合题干可知，原价是400美元的飞机票总共可以节省：$ 400 *48%＝$192，故选B。]
3．What's the purpose of the author in writing this text?
A．To explain what a “sweet spot” is.
B．To attract people to traveling by plane.
C．To show the ways of booking plane tickets.
D．To tell people how to buy cheap plane tickets.
D [考查写作意图。根据第一段第一句“When traveling on a budget, every dollar counts.”和对本文的整体理解可推知，本文的主要目的在于介绍购买便宜飞机票的策略和方法，故选D。]
