雅思阅读 033 · Why Doing Nothing Is Good for Your Brain

改编自 Scientific American（Michael Craig, 2026）。题型：段落信息匹配 + T/F/NG + 填空。难度：中等偏上（Passage 2，约 800 词）。

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🎧 课文朗读音频（约 1 分钟）

正文 Passage

A. The phone problem

You finish a lecture, a meeting, a conversation with someone you care about. And what do you do? You reach for your phone. You stick in your earbuds. You fire up a podcast, a playlist or whatever algorithmic feed is currently consuming your life.

It feels productive. It feels like filling empty time. But here's what may be happening: you have interrupted your brain mid-sentence.

B. Memory consolidation

When you learn something new, whether it is a colleague's name or the material covered in a morning lecture, your brain does not simply file it away neatly. The memory is fragile at first, more like wet cement than carved stone. In the minutes and hours following new learning, the brain works to strengthen what it has taken in. This is known as memory consolidation, the process through which newly formed memories become more stable.

Research suggests that quiet rest can help this process. Two recent meta-analyses, drawing on dozens of studies, found that people generally retained more information when learning was followed by several minutes of quiet rest rather than an absorbing task. One of the reviews found that the effect varied considerably between groups and was weaker in healthy younger adults. However, the overall advantage has been detected as long as seven days after learning.

C. How it works

One leading explanation is that quiet rest gives the brain fewer competing demands and more opportunity to reactivate a new experience, like an internal highlight reel reinforcing what has just been learned. Researchers have found that increased coordination between the hippocampus and areas of the cortex during post-learning rest is associated with better later memory.

D. Sleep isn't the whole story

Decades of research have established that sleep supports memory consolidation. But some researchers argue that sleep may form part of a broader process rather than acting as an entirely unique memory state.

The opportunistic consolidation hypothesis proposes that the brain takes advantage of periods with little new information or interference to stabilise what it has recently learned. These periods can include overnight sleep, shorter bouts of sleep and quiet wakeful rest.

In one experiment, participants completed memory tasks and then spent 30 minutes sleeping, resting with their eyes closed or performing a distracting task. Sleep and quiet rest produced similar memory benefits over this short interval, while both were more beneficial than the distracting task.

E. Doing nothing is harder than it sounds

Achieving genuine quiet rest can be difficult. The memory-consolidation window may be disrupted by internal mental activity as well as external stimulation.

In one series of experiments, participants who spent the rest period recalling past experiences or imagining future events retained less of the newly learned material than those who rested without being prompted to think autobiographically.

Resting on the sofa, then, may work best when the mind settles too.

F. What this means for real life

Quiet rest does not appear to require complete silence, closed eyes or a particular body position. A 2025 meta-analysis found that these factors did not significantly alter the average effect.

For now, the practical implication is modest: after learning something you want to remember, consider leaving a brief gap before introducing more information. It might mean waiting a few minutes after a lecture before reaching for your phone. These are the moments we increasingly fill with new input. If the emerging evidence is right, leaving some of them empty may give the brain a better chance to hold on to what just happened.

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题目 Questions

Questions 1-5: Which paragraph mentions the following?

1. the brain reactivating new experiences like an internal highlight reel

2. reaching for your phone after a lecture

3. an experiment comparing sleep, quiet rest and a distracting task

4. recalling past experiences during rest disrupting memory

5. memory being like wet cement

Questions 6-9: T/F/NG

6. Quiet rest after learning helps people retain more information.

7. The effect of quiet rest is the same for all age groups.

8. Sleep is the only way to consolidate memories.

9. Quiet rest requires complete silence and closed eyes.

Questions 10-13: Complete the notes. Choose NO MORE THAN TWO WORDS.

• The brain strengthens new memories through a process called (10) ____________.
• Increased coordination between the (11) ____________ and cortex is linked to better memory.
• The (12) ____________ consolidation hypothesis says the brain uses periods with little new information.
• After learning, consider leaving a brief (13) ____________ before more information.

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答案 Answers

题号	答案
1	C
2	A
3	D
4	E
5	B
6	TRUE
7	FALSE（varies between groups）
8	FALSE（sleep is part of a broader process）
9	FALSE（does not require complete silence）
10	memory consolidation
11	hippocampus
12	opportunistic
13	gap

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核心词汇

memory consolidation / hippocampus / cortex / quiet rest / meta-analysis / interference / sleep / attention / learning / memory / brain