词汇分层练习（二）
Tom Jones, a psychologist, reports a new role for pigeons. Asked by a pharmaceutical（制药）company to 1 the effects of drugs on animal behaviour, Jones noticed one day that some 70 women were employed to check flaw capsules（有瑕疵的胶囊）. “That is a job any pigeon could do,” he said, because he knew about the pigeon’s learning ability.
On , capsules left the production line. There, Jonesfor a bright, narrow beam of light to pass through them. If a capsule was perfect, the light showed a single spot; if it was, the light showed a double spot.
In their training, two pigeons were with food every time they correctly identified a wrong capsule. The experiment worked. A conveyor belt carried the capsules as fast as two seconds past the pigeon, who achieved 99 percent success within a week.
But the companyemployment of the pigeons on a permanent basis. They feared publicity that might be bad: The public might think pigeons were not as as humans. “A main obstacle to progress,” commented Jones sadly, “ remains man’s obstinate（顽固的） belief in hisover other creatures.”
New Zealand authorities have blocked a couple’s attempt to officially name their new son “4real”, saying numbers are notPat and Sheena Wheaton said they decided to name their new baby “4real” shortly after having an ultrasound.
“For most of us, when we try toout what our names mean, we have to look it up in a baby book and… there’s no direct between the meaning and the name,” Pat Wheaton told TV One. “With this name (4real), everyone knows what it means.” But when the parents filed the name with New Zealand’s Registry of Births, Deaths and Marriages, they were told names beginning with a number were against the rules.
The government office has opened with the parents about the name under a that says all unusual names must be given case-by-case consideration.
“The name has not at this stage been,” Registrar-General Brian Clarke said. “We are__having discussions with the parents to clarify the situation.”
Clarke said the rules are to prevent names that are “likely to cause offence
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