Passage One
Generation gap refers to the difference in ideas, feelings, and interests between the older and younger people. It is especially considered as causing a lack of communication and understanding between the two generations.
There is apparent generation gap between the young and the old nowadays. The younger generation is essentially different from the older generation. The young people live in a new age completely different from the old. They have grown up more happily and are not so dependent on adults as their parents were. They are better educated and enjoy more freedom. They easily accept new things and new ideas. They are more concerned with the present and the future, whereas the world of the older people has vanished, and they do not understand all of the problems of the modern world. They grew up in a world which was different from today’s world. They often talk about "the good old days" and tend to assert old things and id
A. They refer to those days of happy life.
B. They refer to the Gold Age in the Roman and Greek mythology.
C. They refer to the old time in which the old people grew up and which was deemed by themselves as good days.
D. They refer to the past days when the society was good.
C
One of the greatest killers in the Western world is heart disease. The death rate (率) from the disease has been increasing at an alarming Speed for the past thirty years. Medical experts know that people can reduce their chances of getting heart disease by exercising regulary, by not smoking, by changing their diets, and by paying more attention to reducing stress (压力) in their work.
However, Western health-care systems are still not paying enough attention to the prevention of the disease. There is a need for more programs to educate the public about the causes and prevention of heart disease. In stead of supporting such programs, however, the U. S. health-care system is spending large sums of money on the surgical (外科的) treatment of the disease, after it develops. This emhasis (强调) on treatment clearly has something to do with the technological advances that have taken in the past ten to fifteen years. In this time, modern technology, has enabled doctor
A. more money should be spent on the prevention of heart disease
B. heart surgery has helped most patients improve their conditions
C. modern technology has made heart surgery more risky than before
D. the public have known a great deal about the causes of heart disease
Passage 1
One of the greatest mysteries in the study of Cetacea [aquatic mammals] has always been that the creatures found in the stomachs of toothed whales show no teeth marks. Now a University of California at Santa Cruz professor thinks he may have solved the enigma with what he calls the "big bang" theory of cetacean predation.
Ken Norris, natural history professor, believes that rather than use their teeth to attack their victims, toothed whales stun their prey with intense bursts of sound. He points out that all 68 species of odontocetes (a sub-order that includes dolphins) use sound to locate their victims, and suggests this ability may have evolved to the point where it could be used as a weapon.
Millions of years ago, the ancestors of whales had a narrow tapered jaw, streamlined for speed and bristling with long rows of sharp teeth. Today odontocetes are not adapted to surprising their prey or trapping it quickly. Most are
A. direct
B. lessen
C. move to middle
D. use
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