首页
登录
职称英语
(1)Imagine yourself lying in bed, your mind in turmoil. You toss and turn, b
(1)Imagine yourself lying in bed, your mind in turmoil. You toss and turn, b
游客
2023-11-25
35
管理
问题
(1)Imagine yourself lying in bed, your mind in turmoil. You toss and turn, but sleep won’t come. Maybe a bedtime snack would help. What should you choose? If you think first of toaster waffles or popcorn, some experts would say you’re on the right track. Foods high in complex carbohydrates—such as cereals, potatoes, pasta, crackers, or rice cakes—make many people relaxed and drowsy.
(2)Missed that one? Try again. Suppose the weather’s rotten, you forgot your homework, and your best friend’s mad at you. What’s good medicine when you’re feeling low? A sugary cola or candy may give you a quick lift, but you’ll crash just as quickly. Better choices may be Brazil nuts(for selenium), skim milk(for calcium), or a spinach salad(for folic acid). In research studies, all three of those nutrients have been shown to lift spirits and battle the blues.
(3)Try one more. You have a math test coming up in the afternoon. You want to be sharp, but you usually feel sleepy after lunch. Is your best choice an energy fix of fries and a shake or a broiled chicken breast and low-fat yogurt? If you pick the high-fat fries and shake, you may feel sluggish and blow that test. The protein-rich chicken and yogurt are better choices. Protein foods energize, some experts say.
(4)How does food affect mood and mind? The answer may lie in the chemistry of the brain and nervous system. Molecules called neurotransmitters are chemical messengers. They carry a nerve impulse across the gap between nerve cells. The release of neurotransmitter molecules from one neuron and their attachment to receptor sites on another keep a nerve impulse moving.
(5)Nerve impulses carry messages from the environment to the brain, for example, the pain you feel when you stub your toe. They also carry messages in the other direction, from the brain to the muscles. That’s why you back away from the obstacle that initiated the pain signal and exclaim, "Ouch! "
(6)"Many neurotransmitters are built from the foods we eat," says neuroscientist Eric Chudler of the University of Washington. Too little or too much of a particular nutrient in the diet can affect their production, Chudler says. For example, tryptophan from foods such as yogurt, milk, bananas, and eggs is required for the production of the neurotransmitter serotonin. Phenylalanine from beets, almonds, eggs, meat, and grains goes into making the neurotransmitter dopamine.
(7)Dozens of neurotransmitters are known; hundreds may exist. Their effects depend on their amounts and where they work in the brain. The neurotransmitter serotonin, for example, is thought to produce feelings of calmness, relaxation, and contentment. Drugs that prevent its reuptake(into the neuron that released it)are prescribed to treat depression. In at least some healthy, non-depressed people, carbohydrate foods seem to enhance serotonin production and produce similar effects. "It is the balance between different neurotransmitters that helps regulate mood," Chudler says.
(8)Proper nutrition may also enhance brainpower. Choline is a substance similar to the B vitamins. It’s found in egg yolks, whole wheat, peanuts, milk, green peas, liver, beans, seafood, and soybeans. The brain uses it to make the neurotransmitter acetylcholine. To test the effects of choline on memory and learning, researchers at the Massachusetts Institute of Technology gave memory tests to college students before increasing the amount of choline in their subjects’ diets. Later, they retested. On the average, memories were better, and the students learned a list of unrelated words more easily.
(9)"We’re just scratching the surface in this field," says Larry Christensen, a psychologist at the University of South Alabama, "but we know that there are definite behavioral effects of diet." There’s a lot to learn, and future research may reveal more about the chemistry of mood, brain, and nutrition. Until then, it makes sense to choose healthy foods that nourish both body and mind. [br] According to the passage, _____ might be the best food choice when one feels nervous and wants to fall asleep.
选项
A、candy
B、spaghetti
C、Brazil nuts
D、yogurt
答案
B
解析
第1段末句的relaxed and drowsy表明破折号引出的食物能使人感到放松和困倦,其中的食物pasta表示“意大利面食”,而B的spaghetti意为“意大利细面条”,由此可知spaghetti属于pasta的一种,因此选B。A中的candy出现在第2段第5句,它是想要情绪高涨时的一种不大好的选择;C的Brazil nuts是该段第6句说的想要情绪高涨时的较好选择;D的yogurt是第3段提到的想要精神饱满的较好选择,这三项都不符合题意。
转载请注明原文地址:https://tihaiku.com/zcyy/3218349.html
相关试题推荐
(1)Imagineyourselflyinginbed,yourmindinturmoil.Youtossandturn,b
(1)Imagineyourselflyinginbed,yourmindinturmoil.Youtossandturn,b
(1)Imagineyourselflyinginbed,yourmindinturmoil.Youtossandturn,b
(1)Imagineyourselflyinginbed,yourmindinturmoil.Youtossandturn,b
[originaltext]M:Howdifferentwouldyouimaginethelearningofasecondlangu
[originaltext]M:Howdifferentwouldyouimaginethelearningofasecondlangu
(1)Itishardformodernpeopletoimaginethelifeonehundredyearsago.
(1)Imaginethatyoucouldrewindtheclock20years,andyou’re20yearsyoun
(1)Imaginethatyoucouldrewindtheclock20years,andyou’re20yearsyoun
(1)Imaginethatyoucouldrewindtheclock20years,andyou’re20yearsyoun
随机试题
Itisreportedthatacoupleregisteredformarriagesincetheyhavechatted
[originaltext] (5)Francehasbecomethefirstcountrytobansupermarketsfro
查找汉语成语,一般可利用的工具书有( )。A.《辞源》 B.《辞海》 C.
下列吊顶材料价格最低的是()。A.铝合金平板 B.纸面石膏板 C.铝合金
某地下空间与城市交通隧道一体化建没,交通隧道总长度1500m,可双向通行非危险品
为满足施工要求,水泥的初凝时间不宜太(),终凝时间不宜太()。A.长,短
关于SARS症状叙述错误的是A.严重者可于发病6~12天后出现呼吸加速、气促,甚
小儿发生惊厥时首先采取的护理措施是()。A.送入抢救室 B.解松衣物,平卧,
典型的()是单位的人事关系系统。A.人工智能和专家系统 B.事务处理系统
某机房正在进行室内装修,进入动火作业阶段发生火灾,值班人员立即按下气体灭火控制器
最新回复
(
0
)