备战2010年6月英语四级考前每日一练(9)
|0·2010-05-31 21:26:46浏览 收藏
New research conducted by brain researcher Avi Karni of the University of Haifa in Israel explores the possibility that naps help lock 67 sometimes fleeing long-term memories. A 90-minute daytime nap might help the most, the study 68.
"We still don't know the exact 69 of them emory process that occurs during sleep, but the 70 of this research suggest that it is possible to 71 up memory consolidation (巩固)," Kamisaid.
Long-term memory refers to memories that 72 with us for years, such as "what" memoriesa car accident that happened yesterday — 73"how to" memories, such as one's 74 ability toplay the drums.
Kami, who co-authored the study in a recent 75 of the journal Nature Neuroscience, 76 participants to learn a complex thumb-tapping sequence, then split the study 77 into two groups:one that napped for an hour, and one that didn't. The people who 78 an afternoon nap showed sizable improvement in their performance by thatevening.
"After a night's sleep the two groups wereat the same 79, but the group that slept in the afternoon 80 much faster than the group that stayed 81 ," Karni said.
82, the study also showed just how much 83 a 90-minute nap could help consolidate long-term memories.
"Daytime sleep can 84 the time 'how to' memory becomes 85 to interference and forgetting," Karni said. " 86 of 6 to 8 hours,the brain consolidated the memory during the90-minute nap."
67.
[A] in
[B] with
[C] on
[D] up
68.
[A] conducts
[B] finds
[C] carries
[D] includes
69.
[A] appliance
[B] accessory
[C] machine
[D] mechanism
70.
[A] consequences
[B] effects
[C] results
[D] expectations
71.
[A] speed
[B] work
[C] pick
[D] gather
72.
[A] preserve
[B] maintain
[C] stay
[D] reserve
73.
[A] and
[B] but
[C] nor
[D] or
74.
[A] learned
[B] required
[C] taught
[D] suggested
75.
[A] print
[B] issue
[C] copy
[D] publication
76.
[A] informed
[B] inquired
[C] instructed
[D] impressed
77.
[A] sponsors
[B] conductors
[C] researchers
[D] subjects
78.
[A] took
[B] made
[C] did
[D] paid
79.
[A] extent
[B] level
[C] standard
[D] range
80.
[A] improved
[B] recovered
[C] regained
[D] strengthened
81.
[A] conscious
[B] sleepy
[C] aware
[D] awake
82.
[A] Afterwards
[B] Furthermore
[C] Thus
[D] Therefore
83.
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[C] faster
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84.
[A] lessen
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85.
[A] subject
[B] resistant
[C] sensitive
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86. [A] Regardless
[B] Because
[C] Instead
[D] Out
