1、两个首选科目差距不大，偏文科人数较往年有所上涨
首先从首选的物理、历史两个科目来看，总体来说选考两科的比例很接近。而首选历史或物理一定程度上可以反映考生的偏文理程度，我们通过对比2019年其中六个省份的文科生占比情况(见下表)发现，大部分省份的偏文科比例都有所上涨。
说明：表中2019文科占比数据是基于2019年各省发布的一分一段表文理人数计算而来，艺术类考生暂未计入。
为方便大家直观的看出各科目选考比例，我们将这届七省选考数据转换成柱状图：
从上述图表中可以看出，生物的选考比例高居首位，紧接着就是物理和地理两门科目选考人数最多，其次就是历史、化学。而政治科目选考人数最少，这可能与政治这门学科背诵内容多、不容易拿高分的特性有关。
历年高考英语阅读理解试题及答案(二)
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GettinglesssleephasbecomeabadhabitformostAmericankids.Accordingtoanewsurvey(调查)bytheNationalSleepFoundation,51%ofkidsaged10to18gotobedat10pmorlateronschoolnights,eventhoughtheyhavetogetupearly.LastyeartheFoundationreportedthatnearly60%of7-to12-year-oldssaidtheyfelttiredduringtheday,and15%saidtheyhadfallenasleepatschool.
Howmuchsleepyouneeddependsalotonyourage.Babiesneedalotofrest:mostofthemsleepabout18hoursaday!Adultsneedabouteighthours.Formostschool-agechildren,tenhoursisideal(理想的).ButthenewNationalSleepFoundationsurveyfoundthat35%of10-to12-year-oldsgetonlysevenoreighthours.AndguesswhatalmosthalfofthesurveyedkidssaidtheydobeforebedtimeWatchTV.
“MorechildrenaregoingtobedwithTVson,andtherearemoreopportunities(机会)tostayawake,withmorehomework,theInternetandthephone,”saysDr.MaryCarskadon,asleepresearcheratBrownUniversityMedicalSchool.Shesaystheseactivitiesatbedtimecanzxxkgetkidsallexcitedandmakeithardforthemtocalmdownandsleep.Otherexpertssaypartoftheproblemischemical.Changinglevelsofbodychemicalscalledhormonesnotonlymaketeenagers’bodiesdevelopadultcharacteristics,butalsomakeithardforteenagerstofallasleepbefore11pm.
Becausesleepinessissuchaproblemforteenagers,someschooldistrictshavedecidedtostarthighschoolclasseslaterthantheyusedto.Threeyearsago,schoolsinEdina,Minnesota,changedthestarttimefrom7:25amto8:30am.Students,parentsandteachersarepleasedwiththeresults.
1.WhatisthenewNationalSleepFoundationsurveyon
A.Americankids’sleepinghabits.B.Teenagers’sleep-relateddiseases.
C.Activitiestopreventsleeplessness.D.Learningproblemsandlackofsleep.