首页
登录
职称英语
It’s a time when school, homework, active social lives and part-time jobs keep
It’s a time when school, homework, active social lives and part-time jobs keep
游客
2025-07-15
10
管理
问题
It’s a time when school, homework, active social lives and part-time jobs keep teenagers (青少年) busy from early in the morning until late at night. They are likely to try to make up for a lack of sleep by "sleeping in" on the weekends. Unfortunately, this causes irregular sleep and actually makes the problem worse.
Most teenagers are not able to fall asleep until late at night. Since many teens aren’t sleepy until around 11 p. m., but need to be at school by 7: 30 or 8: 00 a. m., they cannot get enough sleep.
During puberty (青春期), the biological clock in the brain naturally resets to a later time, and this causes teens to fall asleep later. Then, when it’s time to get up, a teen’s body clock is likely to still be producing the night-time hormones(荷尔蒙). This makes it hard for them to feel active and energetic in the morning.
A growing body of research suggests that starting high school later improves attendance, achievements and grades. A few years ago in an important study, test scores on the SAT college entrance exams in Edina, Minnesota jumped more than 100 points on average, when the morning school bell rang an hour later. Unfortunately, most schools are not set up to start later and fail to satisfy teen’s sleep needs. [br] What effect does "sleeping in" on the weekends have on teenagers?
选项
A、Improving their health.
B、Weakening their energy.
C、Disturbing their biological clock.
D、Making up for their hormone loss.
答案
C
解析
由第一段末句“makes the problem worse”可知“sleep in”会使情况更糟;由第二段第三句“the biological clock…re-sets…,causes teens to fall asleep later.”可知,这个负面影响主要是生物钟被重置,也就是说生物钟会遭到破坏或扰乱,故选C。
转载请注明原文地址:http://tihaiku.com/zcyy/4163237.html
相关试题推荐
It’satimewhenschool,homework,activesociallivesandpart-timejobskeep
It’satimewhenschool,homework,activesociallivesandpart-timejobskeep
MayIborrowyourpen?[br]Doyouoftengotoschoolonfoot?CDoyouoftengot
[A]It’sMay5th.[B]TodayisSunday.[C]No,Ioftengotoschoolbybus.ID]
Heidiisinayellowcoat.[br]MikeandJackcometoschoolbybuseveryday.A、
[img]ct_epebm_epeblisttp_00036(20097)[/img][br][originaltext]M:Whoseschoolba
[img]ct_epebm_epeblisttp_00036(20097)[/img][br][originaltext]M:Whoseschoolba
DoesMaoMaolikeboating?[br]Howmanyteacherscometoschoolbybus?B
AnnisanAmericanboy.[br]Jeremyisnotinourschool.A、TrueB、FalseB见原文,“他在
AnnisanAmericanboy.[br]AnnandJeremyareinthesameschool.A、TrueB、Fals
随机试题
Theuniversityhassoughtto______aspecialfundforphysicallydisabledstude
WhenBritishpeopletalkabouttheMPs,theyarereferringto______.A、theMetrop
在一棵具有n个结点的二叉树中,所有结点的空子树个数等于()。A.n B.n-1
异氟烷不具有哪一特点A.无刺激性 B.不易分解 C.体内代谢率低 D.血气
患儿男,因误服鼠药后出现皮肤大量瘀点瘀斑、呕血、便血、中度贫血对该患儿急救最适当
黏液性水肿患者,水肿主要表现于A.腹腔 B.身体下垂部分 C.眼面 D.全
某再生障碍性贫血患者伴高热、抽搐,护士采取的最合适的降温措施是A.调低室温 B
对急诊患者,当手术是抢救患者的唯一方案时,最符合医学道德的做法是A:首先考虑患者
信贷档案管理模式不包括()。A.分类管理 B.专人负责 C.按时交接 D
A.囊肿位于鼻腭管内 B.囊肿含有不同发育阶段牙齿,牙冠一般朝向囊腔 C.囊
最新回复
(
0
)