You can mail a letter or package under 16 oz. (unit of weight, 454g) in a mailbox, a blue

You can mail a letter or package under 16 oz. (unit of weight, 454g) in a mailbox, a blue box found on many street corners in U.S. cities and towns. Each mail box should have pick-up times clearly posted on top.
!Packages over 16 oz. placed in a mailbox will not be sent. Bring the package to the post office or retail (零售的) mailing shop instead. The clerk will process if for you.
The Post Office
In the larger cities, when you go to the post office you must take a number and wait in line. Post offices tend to be extremely crowded around Christmas. Try to go as early in the morning as possible. Post office branches open at 9 a.m. and close at 5 p.m. while main branches close at 6 p.m.
Buying Stamps
! The cost of a first-class postage stamp to mail a letter is currently 39 cents, although rates tend to change often.
Stamps are sold individually or in booklets (小册子) of 10 (US$3.90) or 20(US$7.80) or in rolls of 100(US$9.00). You can buy stamps at the following locations:
·online, if you have a computer.
Link to the U.S. Postal Service website (http://www. usps.com) and click on “stamps online”.
·at your local post office
·at some ATMs (automated teller machine)
·at some supermarkets
·by mail
·retail mailing stores(you may have to pay extra for stamps and to mail packages through the U.S. Postal Service)
Postal Rates and Fees
The U.S. Postal Service’s online postage calculator(计算器) tells you the cost to mail a letter or package anywhere in the world. But you should know the weight of the package and the post code of the package’s origin and destination. If you don’t know the weight of the letter or package to be mailed, you can go to your local post office and the postal clerk will weigh it for you.
【小题1】When do the post office main branches close?A．At 9 p.m.B．At 6 p.m.C．At 5 p.m.D．At 5:30 p.m.【小题2】If you have only 39 cents, you can NOT buy a stamp at .A．a local post officeB．a supermarketC．an ATMD．a retail mailing store【小题3】The cost to mail a letter can be calculated when you know .
①its weight ②its origin ③its destination
④its origin’s post code ⑤its destination’s post codeA．①③④B．①④⑤C．①②③D．①②⑤B

(答案→)B 解析：文章介绍寄信的方式，什么样的邮件可以在邮箱寄出，什么样的邮件要到邮局寄，到邮局寄信要注意什么，费用怎么算。【小题1】细节题：从第二段的句子：Try to go as early in the morning as possible. Post office branches open at 9 a.m. and close at 5 p.m. while main branches close at 6 p.m.可知邮局分局在下午6点关门，选B【小题2】细节题：从文章的最后一句话：retail mailing stores(you may have to pay extra for stamps and to mail packages through the U.S. Postal Service)可知零售商店会额外收邮票的钱，如果只有39美分，就不要在零售商店买邮票，选D【小题3】细节题：从最后一段的内容，可知如果你知道邮件的重量，最初的邮编，和目的地的邮编，就可以算出邮件的费用。选B

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