课堂新坐标浙江专版2017高考英语二轮复习专题7阅读理解类型3科普知识讲练

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1、类型3

2、科普知识考查要点方法技巧1.科学现象、概念、定义、类别等。2．事物的性质、特点、原理、用途等。3．事物或现象产生的原因、过程、演变。4．相似事物间的异同。1.理清说明顺序：时间、空间、逻辑顺序。2．把握文章结构：并列式、承接式、递进式、总分式。3．认清说明方法：下定义、举事例、做比较、打比方等。(2016·四川高考·D)Awarmdrinkofmilkbeforebedhaslongbeenthebestchoiceforthosewantingagoodnight'ssleep.Butnowastudyh

3、asfounditreallydoeshelppeoplenodoff—ifitismilkedfromacowatnight.Researchershavediscoveredthat“nightmilk”containsmoremelatonin(褪黑激素)，whichhasbeenproventohelppeoplefeelsleepyandreduceanxiety.Thestudy，byresearchersfromSeoul，SouthKorea，involvedmicebeingfedwithdrie

4、dmilkpowdermadefromcowsmilkedbothduringthedayandatnight.Thosegivennightmilk，whichcontained10timestheamountofmelatonin，werelessactiveandlessanxiousthanthosefedwiththemilkcollectedduringdaytime，accordingtothestudypublishedinTheJournalofMedicinalFood.Nightmilkqui

5、ckenedthestartofsleepandcausedthemicetosleeplonger.Whiletheeffectofcowsmilkharvestedatdifferenttimehasnotbeentestedonhumansuptonow，takingmelatonindrugshasbeensuggestedtothosewhoarestrugglingtofallasleepatnight.Previousstudieshavealsoindicatedthatmilkcanbeexcel

6、lentforhelpingsleepbecauseofthecalciumcontent，whichhelpspeopletorelax.Milkisalsosugarfreeandadditivefreewithnutritionistsrecommendingskimmedmilkasthebestchoicebeforebedasitistheleastfattening.Themorefatyoutakeinbeforebedtime，thegreaterburdenyouwillputonyourbod

7、yatnight.32．Accordingtothetext，themicefedwithdaytimemilk．A．startedsleepmoreeasilyB．weremoreanxiousC．werelessactiveD．wokeuplater33．Whichofthefollowingistrueofmelatoninaccordingtothetext?A．It'sbeentestedonmicefortentimes.B．Itcanmakepeoplemoreenergetic.C．Itexists

8、inmilkingreatamount.D．It'susedinsleepingdrugs.34．Whatcanbeasuitabletitleforthetext?A．NightMilkandSleepB．Fat，SugarandHealthC．AnExperimentonMiceD．MilkDrinkingandHealth35．Howdoestheauthorsupportthethemeofthetext?A．Bygivingexamples.B．Bystatingarguments.C．Byexplain

9、ingstatisticaldata.D．Byprovidingresearchresults.语篇解读：本文是一篇议论文。长期以来，人们认为睡觉前喝一杯热牛奶，但研究表明，只有喝晚上挤的牛奶才真正有助于睡眠。这到底是什么原因呢？快来读文章吧！长难句解读：Thosegivennightmilk，whichcontained10timestheamountof