阅读理解sheep dog
It is not unusual for a pet to be sent by air cargo from Colombia to New York， but last Decembers shipment of a 4-year-old sheep dog caught a New York Kennedy Airport Customs inspectors eye. The dog looked to be on its last legs， and there was an unusual lump on the side of its body. An X-ray and emergency surgery revealed the presence of 10 condoms tightly packed with five pounds of cocaine that had been surgically implanted in the dogs abdomen - yet another first for Customs in the war on drugs.
When it comes to transporting drugs， the methods used are only as limited as a smugglers imagination. Kilo bricks of cocaine are routinely concealed beneath false bottoms of containers that hold poisonous snakes. "Youve got snakes that are 12feet long，" says a United States Fish and Wildlife Service agent - and sometimes the drug is in the snake. "Whos going to pull it out and feel it？"
In 1994， United States Customs seized 204，391 pounds of cocaine， 559，286 pounds of marijuana and 2，577 pounds of heroin. Just how much actually flows into the country is anyones guess. Some customs officials estimate that only 10 percent of the drugs coming into the country are ever seized. In Miami， the District Attorney wont even prosecute small fry. "Its got to be over five kilos of cocaine， above a kilo of heroin and more than 5，000 pounds of marijuana or its not something that were going to stop the presses on，" says Tom Cash， a retired agent.
Given this deluge， one can only wonder if agents are ever confounded by some of the smuggling methods. "There are things we havent seen before，" says John McGhee， a Miami Customs special agent， "but nothing really surprises us."
练习：
1. The dog was different from others in that
A) it could stand only on its hind legs.
B) it had only two legs
C) it was very attractive
D) it had a very big abdomen
2. How many methods are used to transport drugs？
A) As many as a smuggler can think of.
B) Beyond the smugglers imagination.
C) Only a limited number.
D) Only a few.
3. How many pounds of heroin were estimated to be smuggled into the United States in 1994？
A) 204，391
B) 2，577
C) 25，770
D) 559，286
4. Which of the following could best replace the expression "small fry" in the third paragraph？
A) Small dogs.
B) Small sheep dogs.
C) Small smugglers
D) Small ringleaders.
5. What is this article about？
A) Drug transportation from Columbia to New York.
B) A new method for drug smuggling.
C) Varied drug transportation methods
D) Types of drug.
KEY：DACCC