Recent studies in cognitive psychology have challenged the traditional view that multitasking enhances productivity. Researchers have found that the human brain is not designed to process multiple complex tasks simultaneously; instead, it rapidly switches attention between tasks, leading to a phenomenon known as 'attention residue.' This residue impairs performance on subsequent tasks because mental resources remain partially engaged with the previous activity. Furthermore, neuroimaging data reveal that heavy multitaskers show reduced activity in brain regions associated with sustained attention and working memory, compared to light multitaskers. These findings suggest that while multitasking may feel efficient, it often results in slower completion times and more errors, particularly for tasks requiring deep concentration.
❓ According to the passage, what is the main reason multitasking is inefficient?
A. A. The brain cannot handle multiple tasks at once and leaves mental residue that disrupts focus.
B. B. Multitasking reduces activity in all brain regions, causing overall cognitive decline.
C. C. Heavy multitaskers have less working memory capacity than light multitaskers.
D. D. Tasks requiring deep concentration are impossible to complete when multitasking.
✅ 正确答案
A. The brain cannot handle multiple tasks at once and leaves mental residue that disrupts focus.
IELTS Reading Tips
Skim the questions first, underline keywords, then locate in the passage
Watch for paraphrasing; correct answers are often reworded
Be wary of absolute statements (all, always, never) — usually wrong
Pay attention to content after transition words (however, but, yet)
Manage time: about 20 minutes per passage; skip difficult questions first