单选题

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Dollars and cents are the basic units of American money． The back of all dollar bills are green (hence "greenbacks")． The commonly used coins are: one cent (penny), five cents (nickel), 10 cents (dime), and 25 cents (quarter)． 50 pieces (half dollar) and silver dollars (not really silver anymore) are gaining in usage, while there has been talk of phasing out the penny--that's inflation for you． "Always carry plenty of quarters when travelling． Very useful for phones, soda machines, laundry machines, etc．"
There is generally no problem in using US dollars in Canada, but this is never possible in reverse．
It's useful always to carry small change for things like exact fare buses, but do not cary large sums of cash． Instead keep the bulk of your money in travellers' cheques which can be purchased both in the US and abroad and should be in dollar denominations． The best known cheques are those of American Express, so you will have the least difficulty cashing these, even in out of the way places． Thomas Cook travellers' cheques are also acceptable, especially as lost ones can be reclaimed at some car rental companies． Dollar denomination cheques can be used like regular money． There's no need to cash them at a bank: use them instead to pay for meals, supermarket purchases or whatever． Ten or twenty dollar cheques are accepted like this almost always and you'll be given change just as though you'd presented the cashier with dollar bills． Be prepared to show I．D． when you cash your cheques．
Credit cards can be even more valuable than travellers' cheques, as they are often used to guarantee room reservations over the phone and are accepted in lieu of deposit when renting a car--indeed without a credit card you may be considered so untrustworthy that not only a deposit but your passport will be held as security too． The major credit cards are VISA, Master Charge and Access, Diners Club and American Express． If you hold a bank card, it could well be worthwhile to increase your credit limit for travel purposes--you should ask your bank manager．

单选题 Why is it useful to carry enough 25-cent coins with you?

单选题 It is not necessary to carry cash instead of dollar travellers' cheques because the latter can be______．

【正确答案】 B

【答案解析】A“用于打电话、付车费和预订旅馆”，C“在酒店和大商场中使用”，D“兑换很方便，即使是在汽车租赁处”。题干问的是“没必要携带现金，而是使用旅行支票的原因”。文章第三段倒数第三句说“…use them(checks)instead to pay for meals，supermarket purchases。Or whatever．”，可知支票可以用于支付旅馆和商店的费用。故选B。

单选题 The phrase 'in lieu of' (line 2, paragraph 4) most probably means

单选题 Which of the following statements is TRUE?

【正确答案】 A

【答案解析】B“现金会比信用卡好用”、C“一美分硬币已经不流通”与文中意思相矛盾，D“你可以随意增加信用卡额度”在原文中没提到。由文章最后一段第一句话"Credit cards can be even more valuable than travellers’ cheques…“(信用卡比旅行支票更有价值)”，可知信用卡比旅行支票更具价值，这与A项表述一致。