聽力技能是在「有意識」的練習中獲得的！
聽力技能是在「有意識」的練習中獲得的！
聽力技能是在「有意識」的練習中獲得的！
所謂的「有意識」是指：
1. 知道自己要去聽什麼
2. 知道自己為什麼沒有聽懂
一日一篇欄目，我們給出了完整的transcript以及純正的英文音頻，語速與真題相抵，
此篇文章詳細解釋了在我們看來無法理解的「諺語」都是怎麼來的，
吸收這些諺語的同時提高聽力、閱讀以及口語能力
步驟：
1. 通讀全篇文章，搞清楚諺語意思
2. 第二部分看諺語翻譯及講解
3. 第三部分開始無文本播放音頻
4. 聽不懂的詞回來聽
聽力音頻在第三部分
Why do we need sleep?
Is bedtime just a time for dreaming? Do our brains turn off for the night? What if I told you that scientists recently discovered that our brains may be just as busy at night as they are during the day?
While we sleep, our brains are doing much more than getting ready for the next day. Researchers at the University of Rochester found that the brain may be busy cleaning house -- cleaning out harmful waste materials.
As with many studies, the researchers turned to mice for help. They studied mice that had colored dye injected into their brains. They observed the mice brains as they slept and when they were awake. The researchers say they saw that the brains of sleeping mice were hard at work.
Dr. Maiken Nedergaard led the study. The brain expert says our brains perform two very different jobs. It seems they have daytime jobs. Later they 「moonlight」 at a nighttime job.
「Moonlighting」 is working a nighttime job in addition to a day job. And this study says that is what our brains seem to be doing – working an extra job at night without additional pay for overtime.
「When we are awake, the brain cells are working very hard at processing all the information about our surroundings. Whereas during sleep, they work very, very hard at removing all the waste that builds up when we are awake."
The researchers say that the waste material includes poisons, or toxins, responsible for brain disorders such as Alzheimer’s disease.
They also found that during sleep, the brain’s cells shrink, or become smaller. This shrinking permits waste to be removed more effectively.
Dr. Nedergaard says these toxins end up in the liver. There, they are broken down and then removed from the body.
"So our study suggests that we need to sleep because we have a macroscopic cleaning system that removes many of the toxic waste products from the brain."
The brain’s cleaning system could only be studied with new imaging technologies. The test animal must be alive in order to see this brain process to be seen as it happens.
Dr. Nedergaard says the next step is to look for the process in human brains. She said the results demonstrate just how important sleep is to health and fighting disease. The research may also one day lead to treatments to prevent or help fight neurological disorders.
Do you have trouble sleeping? Not being able to sleep is called insomnia. According to the United States National Sleep Foundation, here are some tips for a good night’s sleep:
1. Go to bed about the same time each night, even on weekends. This helps to 「set」 your body’s 「sleep clock.」
2. Exercise every day.
3. Have a calm, relaxing bedtime routine – take a warm bath or drink a hot cup of tea.
4. Try not to take long naps during the day. Periods of sleep during the daytime can interfere with sleep at night.
5. Make sure you have a pleasant environment where you sleep. For most people, a cool, quiet and dark room is best for sleeping.
6. Avoid using television, computers and other electronic screens before bedtime.
7. Also avoid alcohol, cigarettes and heavy meals before bedtime.
And from VOA Learning English, that’s the Health Report. I’m Anna Matteo.
Do you suffer from insomnia? Do you have more suggestions for a good night's sleep. Let us know in our comment section.
This article was written for Learning English by Anna Matteo. It is based on a report by VOA health correspondent Carol Pearson.
insomnia
- n. a prolonged and usually abnormal inability to get enough sleep (「An insomniac is a person who has trouble sleeping over a long period of time.」)
to moonlight; moonlighting
– v. to work at a second job in addition to your regular job (「No wonder she is so tired at work. I just found out that she has been moonlighting as a night club singer.」)
toxin
- n. a poisonous substance and especially one that is produced by a living thing. "Toxic" is the adjective of "toxin." (「The liver gets rid of many toxins in the body.」)
inject
- v. to force a liquid medicine or drug into someone or something by using a special needle (「They injected the mice with dye.」 「The injection was a colored dye solution.」)
shrink
- v. to become smaller in amount, size, or value (「She washed her new wool sweater in hot water and it shrunk two sizes! So, she gave it to her little sister.」)
insomnia 失眠症，失眠
- n. 長期且通常不正常的睡眠不足（「失眠症患者是指長時間睡眠困難的人。」）
to moonlight; moonlighting
（非正式）（尤指夜間）從事第二職業；兼職
– v. 在正常工作之外再做第二份工作
（「難怪她工作這麼累。我剛發現她在夜總會兼職歌手。」）
toxin 毒素；毒質
- n. 有毒物質，尤指由生物產生的有毒物質。」「有毒」是「毒素」的形容詞（「肝臟可以清除體內的許多毒素。」）
inject 注入；注射
- v. 用特殊的針頭把液體藥物或藥物注入某人或某物中
（「他們給老鼠注射了染料。」「注射是有色染料溶液。」）
shrink 縮小
- v. 使在數量、尺寸或價值上變小
（「她用熱水洗了她的新羊毛衫，它縮水了兩個尺碼！所以，她把它給了她的小妹妹)