2026年同步练习册智慧作业八年级英语下册人教版第5页答案
D
In today's busy world, most people feel pressed for time—students have over seven hours of classes and homework each day, and adults work long days. But science tells us: relaxing isn't a waste of time—it's necessary.
A 2024 study by the American Psychological Association found that people who spend 30 minutes a day on free-time activities (like flying kites, reading, or walking) are 25% less likely to feel stressed. When we relax, our brains "reset": they repair tired cells and store new information more effectively. For example, according to a 2025 study conducted by a school, students who take 10-minute breaks between two homework tasks score 15% higher on tests. Relaxation also benefits our bodies.
Pursuing hobbies like painting or playing sports slows our heart rate and relieves muscle tension. Even small gestures—like listening to three songs or chatting with a friend—can reduce stress hormones (chemicals that harm our health) by 40%.
So, free-time activities aren't just "fun": they keep our minds sharp, our bodies healthy, and our daily performance improved. In short, proper relaxation is the key to balancing productivity and well-being.
(
D
)27. What does the 2024 study from the American Psychological Association show?
A. People need 7 hours of classes daily.
B. Adults work longer than students.
C. Students should do homework without breaks.
D. 30-minute daily free-time activities reduce stress.
(
A
)28. Why do students score higher on tests after 10-minute breaks?
A. Their brains "reset" and store information better.
B. They finish homework faster.
C. They have more time to play.
D. Their stress hormones go up.
(
B
)29. Which activity is NOT a way to relax?
A. Flying a kite.
B. Doing 2 hours of non-stop homework.
C. Listening to 3 songs.
D. Chatting with a friend.
(
C
)30. How much can small relaxing activities lower stress hormones?
A. 15%. B. 25%. C. 40%. D. 70%.

答案

27.D 28.A 29.B 30.C

解析

【分析】
本题为英语阅读理解细节题,解题思路是:先根据题干中的关键词(如2024 study、10-minute breaks、NOT relax、lower stress hormones)定位到原文对应段落,再将原文信息与各选项逐一对比,排除与原文不符或无关的选项,最终选出正确答案。
【解析】
27. 定位原文第二段第一句:“A 2024 study by the American Psychological Association found that people who spend 30 minutes a day on free-time activities (like flying kites, reading, or walking) are 25% less likely to feel stressed.” 选项A描述的是学生的课程时长,与该研究无关;选项B原文未对比成年人与学生的工作/学习时长;选项C与原文“take 10-minute breaks”的建议相悖;选项D与原文信息完全匹配,故选D。
28. 定位原文第二段:“When we relax, our brains 'reset': they repair tired cells and store new information more effectively. For example, according to a 2025 study... students who take 10-minute breaks between two homework tasks score 15% higher on tests.” 选项B“完成作业更快”、选项C“有更多时间玩”原文未提及;选项D“压力激素上升”与原文相反;选项A“大脑重置,存储信息更好”是学生得分更高的原因,故选A。
29. 定位原文中列举的放松活动:“free-time activities (like flying kites, reading, or walking)”“listening to three songs or chatting with a friend”,选项A、C、D均属于放松活动;选项B“做2小时不停的作业”不属于放松活动,故选B。
30. 定位原文第三段最后一句:“Even small gestures—like listening to three songs or chatting with a friend—can reduce stress hormones (chemicals that harm our health) by 40%.” 选项A对应10分钟休息后的分数提升,选项B对应2024研究的压力降低比例,选项D无依据,故选C。
【答案】
27.D 28.A 29.B 30.C
【知识点】
英语阅读理解、细节理解题、信息定位
【点评】
本题为英语阅读理解的基础细节题,主要考查学生快速定位原文信息并对比判断的能力,题目设置直接,无复杂推理,只要细心查找关键词即可正确解答。
【难度系数】
0.8