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.
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.
练习：
A) it could stand only on its hind legs.
C) it was very attractive
2. How many methods are used to transport drugs?
B) Beyond the smugglers imagination.
D) Only a few.
A) 204,391
C) 25,770
4. Which of the following could best replace the expression small fry in the third paragraph?
B) Small sheep dogs.
D) Small ringleaders.
A) Drug transportation from Columbia to New York.
C) Varied drug transportation methods
KEY：DACCC
Many scientists today are convinced that life exists elsewhere in the universe---life probably much like that on our own planet. They reason in the following way.
Life requires the right amount and kind of atmosphere. This eliminates all those planets in the universe that are not about the same size and weight as the earth. A smaller planet would lose its atmosphere; a larger one would hold too much of it.
Finally, life could evolve only if the planet is just the right distance from its sun. With a weaker sun than our own, the planet would have to be closer to it. With a stronger sun, it would have to be farther away.
This process of elimination seems to leave very few planets on which earthlike life might be found. However, even if life could exist on only one planet in a million, there are so many billions of planets that this would still leave a vast number on which life could exist.
A) has different laws.
C) shares the same laws
2. The existence of life depends on all of the following factors EXCEPT
B) our own solar system.
D) the right distance from the sun.
A) The planet must be as big and heavy as the earth.
C) Double stars can provide steady light and heat.
4. What kind of planet might NOT support life?
B) Stars similar to our sun.
D) Planets with proper conditions.
A) it is impossible for life to exist on planets.
C) life could exist on only one planet in a million.
KEY: CBCAD