分析 本文屬于說明文閱讀,作者通過這篇文章主要向我們描述了科學(xué)家通過研究證實了夜間光可能促進(jìn)抑郁癥,同時也表明夜間光可能有其實用價值.
解答 63.D.細(xì)節(jié)理解題.根據(jù)文章第三段"those getting dim light at night lost their strong preference for sweet drinks,"a sign they no longer get pleasure out of activities they once enjoyed,"Bedrosian says"可知暴露于連續(xù)夜間光照后,小鼠對曾經(jīng)喜歡的活動不再感到高興;故選D.
64.C.詞義猜測題.根據(jù)文章第四段"The scientists also could quash the behavioral symptoms by injecting (注射) the brains of animals with a drug that prohibits the activity of certain molecules linked with human depression"科學(xué)家也可以撤銷行為癥狀(注射)注射用藥物禁止某些分子與人類抑郁癥的聯(lián)系活動的動物的大腦;可知詞義為撤銷放松;故選C.
65.A.推力判斷題.根據(jù)文章最后一段"The new work,he says,suggests that the change of the biological clock by light at night can be"an extremely powerful force in regulating biology and behavior"可知夜間燈光可能有它的實用價值;故選A.
66.A.主旨大意題.通讀全文,可知文章主要講科學(xué)家通過研究證實了夜間光可能促進(jìn)抑郁癥;故選A.
點評 考察學(xué)生的細(xì)節(jié)理解和推理判斷能力,做細(xì)節(jié)理解題時一定要找到文章中的原句,和題干進(jìn)行比較,再做出正確的選擇.在做推理判斷題不要以個人的主觀想象代替文章的事實,要根據(jù)文章事實進(jìn)行合乎邏輯的推理判斷.
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