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.jye.ai 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？ CC
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？ AA
A．Old people.
B．Young teenagers.
C．Small kids.
D．Lovely babies.
（3）What will the scientists research in the future？ BB
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？ DD
A．A report.
B．A guidebook.
C．A brochure.
D．A magazine.
【考點(diǎn)】自然科學(xué)研究成果；說(shuō)明文．
【答案】C；A；B；D
【解答】
【點(diǎn)評(píng)】
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發(fā)布：2024/5/27 14:0:0組卷：5引用：2難度：0.5
相似題
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1．Are people less or more happy when they get older？A study in 2018 found that people generally become happier and experience less worry after age 50.In fact，it found that by the age of 85，people are happier with their life than they were at 18.
Arthur Stone in the Department of Psychiatry and Behavioral Science at Stony Brook University in New York led the study.His team found that levels of stress were the highest among adults between the ages of 22 and 25.（1）
Happiness was the highest among the youngest adults and those in their early 70s.But the people least likely to report feeling negative emotions were those in their 70s and 80s.The survey also found that men and women have similar emotional patterns as they grow older.（2）
The researchers also considered possible influences like having young children，being unemployed or being single.But they found that influences like these did not affect the levels of happiness and wellbeing related to age.
（3）One theory is that，as people get older，they become more thankful for what they have and have better control of their emotions.They also spend less time thinking about bad experiences.
（4）In another study，people in their 80s reported the fewest problems with the quality of their sleep.The original goal was to confirm the popular belief that aging is connected with increased sleep problems.（5）But except for that，people reported that they felt their sleep quality improved as they got older.
A.So why will happiness increase with age？
B.Researchers surveyed more than 150，000 American adults.
C.At that time，the people were between the ages of 18 and 85.
D.Stress levels dropped sharply after people reached their 50s.
E.Happiness is not the only thing that apparently improves with age.
F.The survey did find an increase during middle age，especially in women.
G.However，women at all ages reported more sadness，stress and worry than men.發(fā)布：2024/12/14 13:30:1組卷：13引用：1難度：0.5 -
2．I'm not sure（1）
is more frightened，me or the female gorilla（大猩猩）that suddenly appears out of nowhere．I'm walking on a path in the forest in the Central African Republic．Unexpectedly，I'm face-to-face with the gorilla，who begins screaming at（2）top of her lungs．That makes her baby scream，and then a 400-pound male appears．He screams the （3）（loud）of all．The noise shakes the trees as the male beats his chest and charges toward me．I quickly lower myself，ducking my head to avoid（4）（look） directly into his eyes so he doesn't feel （5）（challenge）．
My name is Mireya Mayor．I'm a（6）（science）who studies animals such as apes and monkeys．I was searching （7）these three western lowland gorillas I'd been observing．No one had seen them for hours，and my colleagues and I were worried．
When the gorillas and I frightened each other，I was just glad to find （8）（they） alive．True to a gorilla's unaggressive nature，the huge animal（9）（mean）me no real harm．He was just saying： "I'm king of this forest，and here is your reminder!" Once his message was delivered，he allowed me（10）（stay） and watch．發(fā)布：2024/12/12 8:30:1組卷：199引用：10難度：0.6 -
3．Research suggests that at least 64% of people now spend up to four hours daily of spare time in front of a screen.Just as TV watching has been linked to higher chances of being fat and getting diseases，this extra sedentary（久坐不動(dòng)） time is bad news for our health.（1）
.
Choose outdoor activities over technology
When you're at home，make it a rule that you can't be online if the sun is shining.（2）.Then，after taking these healthy physical activities，you can pull out your phone or tablet，or take a seat at the computer.This rule should be fit for everyone in your family.
Limit social media use
According to some experts，the effect of technology on human relationships is worrying as technology has become a substitute for face-to-face human relationships.And Social networks have changed computer and mobile use for people of all ages.（3）.Avoid aimless browsing（瀏覽）and give your time online a purpose：research holidays or catch up on the news of the day.Then log off.
（4）.
Challenge yourself to read at least 30 pages of a great book before you check your computer or mobile phone.Pick the right reading material and you'll soon find you've discovered an enjoyable pastime.
Create projects for yourself
It's amazing how much you can achieve when you're not glued to（長(zhǎng)時(shí)間盯著）a screen.（5）.Some suggestions are organizing kitchen cupboards，cleaning your bedroom.Then try to do one each evening.
A.Set aside reading time
B.Choose the suitable reading materials
C.Make a list of one-hour evening projects
D.Here are some ways to stop technology addiction
E.Whether it's Facebook or Twitter，limit the time online
F.The following are some ways to make better use of leisure time
G.Instead，you have to go for a walk，ride a bike，or swim at least an hour發(fā)布：2024/12/19 3:0:1組卷：11引用：1難度：0.5
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