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1、Directions: In the following text, some sentences have been removed. For Questions 1-5, choose the most suitable one from the list A-G to fit into each of numbered blanks. There are two extra choices, which do not fit in any of the blanks. Mark your answers on ANSWER SHEET 1. (10 points) Researchers have found that genes play a large role in shaping a child’s emotional makeup, but a child’s personality traits are also profoundly affected by his or her environment. Genetic and environmental factors combine in complex ways to shape a child’s psychological development. The wizards of genetics keep closing in on the biological roots of personality. It’s not your imagination that one baby seems born cheerful and another morose. But that’s not the complete picture. (1) ___________________________. In the last few years scientists have identified genes that appear to predict all sorts of emotional behavior, from happiness to aggressiveness to risk-taking. (2) __________________. But the answer may not be so simple after all. Scientists are beginning to discover that genetics and environment work together to determine personality as intricately as Astaire and Rogers danced. Nature affects nurture affects nature and back and forth. Each step influences the next. (3) ___________________________. An aggressive toddler, under the tight circumstances, can essentially be rewired to channel his energy more constructively. A child can overcome her shyness—forever. No child need be held captive to her genetic blueprint. The implications for child rearing—and social policy—are profound. While Gregor Mendel’s pea plants did wonders to explain how humans inherit blue eyes or a bald spot, they turn
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