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　　Direction:

　　Read the following text.Choose the best word(s)for each numbered blank and mark A,B,C or D on the ANSWER SHEET.(10 points)

　　①Why do people read negative Internet comments and do other things that will obviously be painful?②Because humans have an inherent need to___1___ uncertainty,according to a recent study in Psychological Science.③The new research reveals that the need to know is so strong that people will ___2__ to satisfy their curiosity even when it is clear the answer will ___3___.

　　①In a series of four experiments,behavioral scientists at the University of Chicago Booth School of Business and the Wisconsin School of Business tested students'willingness to ___4___ themselves to unpleasant stimuli in an effort to satisfy curiosity.②For one ___5___,each participant was shown a pile of pens that the researcher claimed were from a previous experiment.③The twist?④Half of the pens would ___6___ an electric shock when clicked.

　　①Twenty-seven students were told which pens were electrified;another twenty-seven were told only that some were electrified.②___7___ left alone in the room,the students who did not know which ones would shock them clicked more pens and incurred more shocks than the students who knew what would ___8___.③Subsequent experiments reproduced this effect with other stimuli,___9___ the sound of fingernails on a chalkboard and photographs of disgusting insects.

　　①The drive to ___10___ is deeply rooted in humans,much the same as the basic drives for ___11___ or shelter,says Christopher Hsee of the University of Chicago.②Curiosity is often considered a good instinct—it can ____12 ___ new scientific advances,for instance—but sometimes such __ 13____ can backfire.③The insight that curiosity can drive you to do ____14____ things is a profound one.

　　①Unhealthy curiosity is possible to ___15___,however.②In a final experiment,participants who were encouraged to ___16___ how they would feel after viewing an unpleasant picture were less likely to ___17____ to see such an image.③These results suggest that imagining the ___18_ _ of following through on one's curiosity ahead of time can help determine___ 19____ it is worth the endeavor.④“Thinking about long-term ___20___ is key to reducing the possible negative effects of curiosity,”Hsee says.⑤In other words,don't read online comments.

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