32. According to the text, the mice fed with daytime milk_______.
- A. started sleep more easily
- B. were more anxious
- C. were less active
- D. woke up later
答案：B
答案句：Those given night milk, which contained 10 times the amount of melatonin, were less active and less anxious than those fed with the milk collected during daytime, according to the study published in The Journal of Medicinal Food.
参考译文：根据发表在《药用食品杂志》上的这项研究，那些被喂食夜间牛奶（其褪黑激素含量是白天的10倍）的小鼠，比那些被喂食白天收集的牛奶的小鼠更不活跃、更不焦虑。
定位线索：题干“mice fed with daytime milk”→答案句“those fed with the milk collected during daytime”；文中“less active and less anxious”对应选项B“were more anxious”（更焦虑，即与“less anxious”相反）。
解析：题干问白天牛奶喂养的小鼠情况，答案句明确指出夜间牛奶组“less active and less anxious”，由此可推出白天牛奶组与之相反，即“more anxious”，对应B项。A项“started sleep more easily”和C项“were less active”是夜间牛奶组的特点，D项“woke up later”文中未提及，均属张冠李戴或无中生有。
33. Which of the following is true of melatonin according to the text?
- A. It’s been tested on mice for ten times.
- B. It can make people more energetic.
- C. It exists in milk in great amount.
- D. It’s used in sleeping drugs.
答案：D
答案句：While the effect of cows milk harvested at different time has not been tested on humans up to now, taking melatonin drugs has been suggested to those who are struggling to fall asleep at night.
参考译文：虽然到目前为止，不同时间采集的牛奶对人体的效果尚未经过测试，但褪黑激素药物已被建议给那些夜间难以入睡的人。
定位线索：题干“melatonin”→答案句“melatonin drugs”；文中“taking melatonin drugs has been suggested”对应选项D“It's used in sleeping drugs”（它被用于安眠药物中）。
解析：答案句提到“taking melatonin drugs has been suggested”，说明褪黑激素被用于药物中帮助睡眠，对应D项。A项“tested on mice for ten times”曲解了“10 times the amount”，B项“make people more energetic”与原文“feel sleepy”相反，C项“exists in milk in great amount”与原文“contains 10 times”不符，均属偷换概念或程度夸大。
34. What can be a suitable title for the text?
- A. Night Milk and Sleep
- B. Fat, Sugar and Health
- C. An Experiment on Mice
- D. Milk Drinking and Health
答案：A
答案句：A warm drink of milk before bed has long been the best choice for those wanting a good night’s sleep. But now a study has found it really does help people nod off—if it is milked from a cow at night. … Researchers have discovered that “night milk” contains more melatonin(褪黑激素), which has been proven to help people feel sleepy and reduce anxiety. … Night milk quickened the start of sleep and caused the mice to sleep longer.
参考译文：睡前喝一杯温牛奶长期以来一直是那些想要睡个好觉的人的最佳选择。但现在一项研究发现，如果牛奶是在晚上从奶牛身上挤出的，它确实能帮助人们入睡。…研究人员发现，“夜间牛奶”含有更多的褪黑激素，这种激素已被证明能帮助人们感到困倦并减少焦虑。…夜间牛奶加快了入睡的速度，并使小鼠睡得更久。
定位线索：题干“suitable title”→首段“A warm drink of milk before bed”与“night milk”；文中“night milk”与“sleep”贯穿全文，对应选项A“Night Milk and Sleep”。
解析：全文围绕“night milk”对睡眠的帮助展开，首段提出主题，后续段落用研究结果支撑，因此标题“Night Milk and Sleep”最合适，对应A项。B项“Fat, Sugar and Health”只涉及末段部分内容，C项“An Experiment on Mice”只是研究手段而非主题，D项“Milk Drinking and Health”范围过大，均属以偏概全或范围扩大。
35. How does the author support the theme of the text?
- A. By giving examples.
- B. By stating arguments.
- C. By explaining statistical data.
- D. By providing research results.
答案：D
答案句：The study, by researchers from Seoul, South Korea, involved mice being fed with dried milk powder made from cows milked both during the day and at night. … Those given night milk, which contained 10 times the amount of melatonin, were less active and less anxious than those fed with the milk collected during daytime, according to the study published in The Journal of Medicinal Food.
参考译文：这项由韩国首尔的研究人员进行的研究，涉及用白天和晚上挤奶的奶牛制成的奶粉喂养小鼠。…根据发表在《药用食品杂志》上的这项研究，那些被喂食夜间牛奶（其褪黑激素含量是白天的10倍）的小鼠，比那些被喂食白天收集的牛奶的小鼠更不活跃、更不焦虑。
定位线索：题干“support the theme”→答案句“The study”与“according to the study”；文中“study”“researchers”“published”对应选项D“By providing research results”（通过提供研究结果）。
解析：作者通过引用具体研究（包括研究对象、方法、结果和发表期刊）来支持主题，即提供研究结果，对应D项。A项“giving examples”不准确，因为文中是系统性研究而非简单举例；B项“stating arguments”和C项“explaining statistical data”均未体现，文中虽提到“10 times”但未详细解释统计数据，属无中生有。