你知道吗？除了健康饮食和体育锻炼，情绪变化也与我们的身体健康密切相关。阅读以下科普内容，完成任务。
Our feelings are very important to our health. Some scientists find that about 75% of happy people seldom get sick. Happy people sleep better, eat better and work better.
When we are happy, our bodies give us endorphins(内啡肽) and serotonin(血清素). They are healthy "happy chemicals" that can relax our muscles, and help our hearts work well. They also make our immune system(免疫系统) stronger, so we can fight illness more easily. There is an old Chinese saying: "A smile makes you ten years younger." It tells us being happy is very helpful. "A good mood is better than ten doses(服) of medicine" is also a good example.
When we are sad for a long time, we may feel tired and weak. It is bad for our hearts and bodies. There is an old Chinese saying: "Sadness turns our hair grey." It means being sad is very bad for us.
What can we do to stay happy? We can talk to friends, take a walk, do some exercise or listen to music. There are too many ways for us to stay happy.
Everyone wants to be healthy. Now, please remember: .
任务一:根据短文内容,借助思维导图梳理积极情绪对人体产生的影响。

任务二:根据短文内容,选择正确的答案。
()1. According to the study, are healthy and seldom get sick.
A. all the happy people B. most happy people C. angry people
()2. The underlined word "weak" means "".
A. 虚弱的 B. 激动的 C. 平静的
()3. Which way to stay happy is NOT mentioned(提及) in the passage?
A. Do some exercise. B. Talk to friends. C. Sleep for a long time.
任务三:根据短文内容,将俗语与其译文连线匹配。
1. Sadness turns our hair grey. A. 笑一笑,十年少。
2. A smile makes you ten years younger. B. 一个好心情,胜过十服药。
3. A good mood is better than ten doses of medicine. C. 愁一愁,白了头。
任务四:根据短文内容,在文末横线上填写一句话作为总结。

任务一:1. happy chemicals
2. help our hearts work well
3. fight illness more easily
任务二:1. B 2. A 3. C
任务三:1. C 2. A 3. B
任务四:
示例:It's important to be happy every day
解析
任务一:
依据: When we are happy, our bodies give us endorphins and serotonin. They are healthy "happy chemicals" that can relax our muscles, and help our hearts work well. They also make our immune system stronger, so we can fight illness more easily.
分析:故第1小题填 happy chemicals,第2小题填 help our hearts work well,第3小题填 fight illness more easily。
任务二:
1. 句意:根据这项研究,________是健康的且很少生病。
依据: Some scientists find that about 75% of happy people seldom get sick.
分析:原文提到大约75%的快乐的人很少生病,75%对应"大多数",故选 B。
2. 句意:画线词"weak"的意思是"____"。
依据: When we are sad for a long time, we may feel tired and weak.
分析:句中 weak 与 tired 并列,描述长时间悲伤时的身体状态,故选 A。
3. 句意:文中没有提到哪种保持快乐的方法?
依据: We can talk to friends, take a walk, do some exercise or listen to music.
分析:文中提到的保持快乐的方法有和朋友聊天、散步、做运动和听音乐,未提及长时间睡觉,故选 C。
任务三:
1. 直译:悲伤让我们的头发变白。表达了"过度忧愁会损害健康、加速衰老"的意思,故选 C。
2. 直译:一个微笑能让你年轻十岁。表达了"保持乐观能让人更年轻"的意思,故选 A。
3. 直译:一个好心情比十服药都好。表达了"积极的情绪对健康很有益处,甚至超过药物"的意思,故选 B。
任务四:
文章主要讲了情绪对健康的影响。积极的情绪有益健康,而消极的情绪有害健康。总结句需要点明积极情绪对健康的重要性,且语言简洁,能概括全文主旨,可以写"It's important to be happy every day"。