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We my be wishing some memories could last a lifetime，but a large quantity of physical and emotional factors can have negative impact on our ability to keep the information throughout our whole life.A new study which had been published in the journal Psychological Science found that people who feel enthusiastic and cheerful—what psychologists call "positive effect"—are less likely to experience memory decline as they get older.This result adds to a growing body of research on the role of positive elect on healthy aging.
   A team of researchers analyzed data from about 991 middle aged and elderly U.S.adults who participated in a national study conducted in three periods：between 1995 and 1996，2004 and 2006，and 2013 and 2014.In each assessment，participants reported on a wide range of positive emotions they had experienced during the past 30 days.In the final two assessments，participants also completed tests of memory performance.These tests consisted of recalling words immediately after their presentation and again 15 minutes later.
   The researchers examined the association between positive effect and memory decline，which accounts for age，gender，education，depression，and negative effect.
   "Our findings have clearly showed that memory declined with people becoming older，" said Claudia Haase，an associate professor at Northwestern University and senior author on the paper. "However，individuals with higher levels of positive effect had a less steep memory decline over the course of almost a decade，" added Emily Hittner，a PhD graduate of Northwester University and the paper's lead author.Areas of future research might address the pathways that could connect positive effect and memory，such as physical health or social relationships.

（1）What can we infer from paragraph 1？
C
C

A．Our memory can last for a lifetime.
B．Enthusiasm can make people healthier.
C．Positive people can have a much better memory.
D．Physical and emotional factors can better memory.
（2）Who might have participated in the study？
A
A

A．Old people.
B．Young teenagers.
C．Small kids.
D．Lovely babies.
（3）What will the scientists research in the future？
B
B

A．How to make people live healthily and long.
B．Association between being positive and memory.
C．How to make people have a good physical and mental heath.
D．Connection between physical health and mental health.
（4）Where is this text most likely from？
D
D

A．A report.
B．A guidebook.
C．A brochure.
D．A magazine.

【答案】C；A；B；D
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發(fā)布：2024/5/27 14:0:0組卷：5引用：2難度：0.5
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