A
A new study shows students who write notes by hand during lectures perform better on exams than those who use laptops(笔记本电脑).
Students arc increasingly using laptops for note-taking because of speed and legibility(清晰度).But the research has found laptop users are less able to remember and apply the concepts they have been taught.
Researchers performed experiments that aimed to find out whether using a laptop increased the tendency to make notes "mindlessly" by taking down word for word what the professors said
In the first experiment, students were given either a laptop or pen and paper .They listened to the same lectures and were told to use their usual note-taking skills. Thirty minutes after the talk , they were examined on their ability to remember facts and on how well they understood concepts.
The researchers found that laptop users took twice as many notes as those who wrote by hand. However, the typists performed worse at remembering and applying the concepts（观念）. Both groups scored similarly when it came to memorizing facts.
The researchers' report said, "While more notes are beneficial, if the notes are taken mindlessly, as is more likely the case on a laptop, the benefit disappears."
In another experiment aimed at testing long-term memory, students took notes as before but were tested a week after the lecture. This time, the students who wrote notes by hand performed significantly（有效地） better on the exam.
These two experiments suggest that handwritten notes are not only better for immediate learning and understanding, but that they also lead to superior revision in the future.
21. More and more students favor laptops for note-taking because they can .
A. write more notes B. digest concepts better
C. get higher scores D. understand lectures better
22. While taking notes, laptop users tend to be .
A. skillful B. mindless
C. thoughtful D. tireless
23. The author of the passage aims to .
A. examine the importance of long-term memory
B. stress（强调） the benefit of taking notes by hand.
C. explain the process of taking notes
D. promote the use of laptops
