Passage 14Most young people enjoy some form of physical activity. It may be walking, cycling or swimming, or in winter, skating or skiing. it may be a game of some kind football, hockey（曲棍球), ...
Passage 13Faces, like fingerprints, are unique. Did you ever wonder how it is possible for us to recognize people? Even a skilled writer probably could not describe all the features that make one face...
Passage 12According to psychologists(心理学家), an emotion is aroused when a man or animal views something as either bad or good. When a person feels like running away from something he thinks wil...
Passage 11Dream is a story that a personwatchesor even takes part in during sleep. Dream events are imaginary, but they are related to real experiences and needs in the dreamer's life. They seem real ...
Passage 10The poverty line is the minimum income that people need for an acceptable standard of living. People with incomes below the poverty line are considered poor. Economists study the causes of p...
Passage 9People do not analyze every problem they meet. Sometimes they try to remember a solution from the last time they had a similar problem. They often accept the opinions or ideas of other people...
Passage 8Thirty-two people watched kitty Genovese being killed right beneath their windows. She was their neighbor. Yet none of the 32 helped her. Not one even called the police. Was this in gunman cr...
Passage 7A moment's drilling by the dentist may make us nervous and upset. Many of us cannot stand pain. To avoid the pain of a drilling that may last perhaps a minute or two, we demand theneedle- a s...
Passage 6We can make mistakes at any age. Some mistakes we make are about money. But most mistakes are about people. Did Jerry really care when I broke up with Helen? When I got that great job, did Ji...
Passage 5In 1960-1961, Chad (乍得) harvested 9800 tons of cotton seed for the first time in its history, and brut out the flag a little too soon. The efforts of the authorities to get the breasants ...