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مقتطف من محاضرة عن علم النوم

الاسم:التاريخ:

جزء من محاضرة لطلاب السنة الأولى في الجامعة عن النوم.

الصوت وتصحيح الإجابات: https://joy-english.com/ar/listening/sleep-science-lecture

الأفكار الرئيسة والموقف

استمع إلى مقتطف المحاضرة. اختر أفضل إجابة.

What is the lecturer's main aim in this extract?
- a) To persuade students to sleep for exactly eight hours
- b) To describe a single experiment in detail
- c) To introduce key ideas about sleep and question some popular beliefs
- d) To teach techniques for remembering lists of words
What common misunderstanding does the lecturer describe first?
- a) That dreaming only happens in deep sleep
- b) That the brain is mostly inactive during sleep
- c) That teenagers need less sleep than adults
- d) That sleep has no connection with memory
In the experiment, what usually happens to the volunteers who sleep?
- a) They remember more of what they learned
- b) They remember the same amount as the others
- c) They forget most of what they learned
- d) They need more time to learn new material
According to the current explanation, what does the brain do during deep sleep?
- a) It rests completely so that it can work the next day
- b) It creates new words and images
- c) It deletes all unimportant information
- d) It replays experiences and stores important information for longer
What is the lecturer's attitude to headlines about naps and exam results?
- a) He thinks they exaggerate what the research shows
- b) He thinks they are accurate but too simple
- c) He thinks naps are more useful than night-time sleep
- d) He thinks students should test the claims themselves
What does the lecturer suggest about teenagers who find it hard to get up early?
- a) They should go to bed much earlier
- b) They are usually being lazy
- c) They need less sleep than younger children
- d) Their body clock may make it genuinely difficult
What does the lecturer imply about the eight-hour rule?
- a) It is supported by all recent research
- b) It only applies to teenagers
- c) It is too simple to fit everyone
- d) It is the best rule for students to follow
What should students do before the next class?
- a) Repeat the memory experiment at home
- b) Read a chapter and keep a diary of their sleep
- c) Write a short essay about dreams
- d) Take a short nap each afternoon

الاستماع للتفاصيل

استمع مرة أخرى واكتب الكلمة أو الرقم الناقص. يمكنك كتابة الأرقام بالكلمات أو بالأرقام.

We spend roughly a ___ of our lives asleep.
Each sleep cycle lasts roughly ___ minutes.
In the experiment, volunteers learn a list of word ___ in the evening.
In teenagers, the internal clock often shifts later by around ___ hours.
Most adults seem to need between seven and ___ hours of sleep.
For next week, students should read chapter ___.

مفتاح الإجابات

الأفكار الرئيسة والموقف

c) To introduce key ideas about sleep and question some popular beliefsيعرض عدة أفكار من أبحاث النوم ويتحدى معتقدات شائعة، مثل أن النوم حالة ثابتة وقاعدة الثماني ساعات.
b) That the brain is mostly inactive during sleepيتخيل كثير من الناس النوم حالة ثابتة، مثل إطفاء الحاسوب، لكن الدماغ نشط بشكل لافت في الليل.
a) They remember more of what they learnedالمجموعة التي نامت تتذكر عادةً أكثر بشكل ملحوظ في اليوم التالي.
d) It replays experiences and stores important information for longerيعيد الدماغ تشغيل تجارب اليوم وينقل المعلومات المهمة إلى تخزين أطول أمدًا.
a) He thinks they exaggerate what the research showsيحذّر من أن الدراسات صغيرة وبسيطة، ويقول إن القيلولة لن تضاعف نتائجك.
d) Their body clock may make it genuinely difficultتميل الساعة الداخلية لدى المراهق إلى التأخر، لذا فهو ليس بالضرورة كسولًا.
c) It is too simple to fit everyoneيرى أن القاعدة مرتبة أكثر من اللازم، لأن مقدار النوم الذي يحتاجه الناس يختلف من شخص إلى آخر.
b) Read a chapter and keep a diary of their sleepيطلب منهم قراءة فصل وتسجيل وقت ذهابهم إلى النوم واستيقاظهم.

الاستماع للتفاصيل

thirdيقول إننا نقضي نحو ثلث حياتنا نائمين.
ninety / 90نمرّ بدورات مدة كل منها نحو تسعين دقيقة.
pairsيحفظ المتطوعون قائمة من أزواج الكلمات.
two / 2تميل الساعة إلى التأخر، غالبًا بنحو ساعتين.
nine / 9يبدو أن معظم البالغين يحتاجون إلى ما بين سبع وتسع ساعات.
four / 4يطلب من الطلاب قراءة الفصل الرابع.

النص المكتوب

Lecturer: Good morning, everyone. Last week we looked at how memories are formed. Today I want to turn to something we spend roughly a third of our lives doing, yet rarely think about: sleep.

Lecturer: Let's begin with a common misunderstanding. Many people imagine sleep as a single, steady state, rather like switching off a computer. In fact, the brain is remarkably busy at night. We move through cycles of roughly ninety minutes, passing from light sleep into deep sleep and then into what's known as rapid eye movement sleep, when most vivid dreaming happens.

Lecturer: So why does this matter for learning? In one well-known type of experiment, volunteers learn a list of word pairs in the evening. Half of them then sleep normally, while the other half stay awake. The next day, the group that slept typically remembers noticeably more.

Lecturer: The current explanation is that during deep sleep, the brain replays the day's experiences and moves important information into longer-term storage. Now, a word of caution. These studies are usually small, and they test fairly simple tasks, so I'd be careful about headlines claiming that a short nap will double your exam results. It won't.

Lecturer: The second idea I'd like you to take away concerns timing. Each of us has an internal clock that tells the body when to feel alert and when to feel sleepy. In teenagers, this clock tends to shift later, often by around two hours. So a sixteen-year-old who can't fall asleep before midnight isn't necessarily being lazy when they struggle to get up at seven.

Lecturer: Finally, you've probably heard that everyone needs exactly eight hours a night. Personally, I find that rule rather too neat. Most adults seem to need somewhere between seven and nine, and the right amount genuinely varies from person to person.

Lecturer: For next week, please read chapter four, and keep a simple diary of when you go to bed and when you wake up. We'll compare the results in the seminar.