Question

1．Naps-short sleeps during the day-may improve memory，experts said recently．
New research conducted by brain researcher Avi Karni of the University of Haifa in Israel explores the possibility that naps help lock in sometimes long-term memories．"We still don't know exactly how memory system works during sleep，but the results of this research suggest it is possible to speed up memory consolidation（鞏固），"Karni said．Long-term memory refers  to memories that stay with us for years，such as"what"memories--a car accident that happened yesterday--or"how to"memories，such as one's learned ability to play the pianos．
Karni，also one of the authors of the study published in a recent issue of the journal Nature Neuroscience，instructed participants to learn a difficult set of finger games，then divided the study subjects into two groups：one that napped for an hour，and one that didn't．The people who took an afternoon snooze showed obvious improvement in their performance by that evening．
"After a night's sleep the two groups were at the same level，but the group that slept in the afternoon improved much faster than the group that stayed awake，"Karni said．And the study also showed just how much faster a 90-minute nap could help lock in long-term memories．"Daytime sleep can shorten the time‘how to'memory weakens and forgetting starts，"Karni said，"Instead of 6 to 8 hours，the brain consolidated the memory during the 90-minute nap．"
64．We can learn from the article thatC．
A．the new research has discovered the memory process during the sleep
B．taking a nap helps improve both long-term and short-term memories
C．Karni's findings are based on comparisons between two groups of participants
D．people who take a nap will never forget"how to"skills once they are learned
65．The underlined word"subjects"in paragraph 3 probably meanA．
A．the people being tested in the study
B．the people carrying out the study
C．the topics being discussed in the study
D．the areas of knowledge being studied
66．The text is most probably taken fromD
A．a(chǎn) newspaper report     B．a(chǎn) library guide
C．a(chǎn) project handbook     D．a(chǎn) science site．

Answer 1

分析 本文是一篇科教類閱讀，專家最近說，白天小睡一會會提高記憶力，本文以此展開談論，主要講述了一項關于在白天小睡一會可以提高記憶力的一項研究發(fā)現(xiàn)，以及研究所進行的實驗過程．

解答 64．答案：C．細節(jié)理解題．根據(jù)"instructed participants to learn a difficult set of finger games，then divided the study subjects into two groups：one that napped for an hour，and one that didn't"可知，卡尼的發(fā)現(xiàn)是基于對比兩組的參與者．故選C．
65．答案：A．詞義猜測題．根據(jù)下文"The people who took an afternoon snooze showed obvious improvement in their performance by that evening．"可知，此處subjects樣本指的是研究中測試的人．故選A．
66．答案：D．推理判斷題．根據(jù)文章內(nèi)容可知，本文是一篇科普類文章，應該來源于一個科學網(wǎng)站．故選D．

點評 本文是一篇科教類閱讀，題目涉及多道細節(jié)理解題．詞義猜測題，推理判斷題．做題時學生應仔細閱讀原文，把握文章主要內(nèi)容，聯(lián)系文章上下文內(nèi)容并結合所給選項含義，從中選出正確答案，一定要做到有理有據(jù)，切忌胡亂猜測．