百天的知识聚焦

准备考试是四六级考试的第一个战场，是否准备得当，高效率、目的明确的备考往往能让你赢在起跑线上。备考的秘密其实很简单，就是以真题为核心，以练习为圆心，以规律总结技巧归纳为半径，画出一个高分屠级的完美的圆。接下来，我们...

Biden'splaninfirst100days拜登公布上任百天计划USPresident-electJoeBidenonTuesdaylaidouthisplantofightthecoronaviruspandemicduringhisfirst100daysinoffice,sayinghisadministrationwouldvaccinate100mill...

DaYanCalendar《大衍历》DaYanCdlenddrwasdraftedbyZhangSui(683一727，alsonamedSengYixing)in727，andwaslatersortedoutbyZhangShuo(667一730)andChenXuanjing.《大衍历》，公元727年唐朝天文学家张遂(683一727，又名僧一...

TheSundial日晷Thesundial，anancientChinesetimekeepinginstrumentconsistingofabronzeneedleandastonedial，measuresthetimebytakingadvan-tageoftheshadowofthesun.日晷又称“旧规”，中国古代利用日影测得时刻的一种计...

TheCelestialGlobe浑象Thecelestialglobewasaninstrumentfordemonstratingastronomicphe-nomenainancientChina.TheancientChinesepeoplelearnedtomakethisinstrumentalongtimeago，andusedittopinpointthepositionofth...

SolarEclipse日食Alongtimeago,peoplenoticedthatthesunandthemoonsometimessuddenlylosttheirlecouldnotfigureoutthereasonandfearedthat,oncegone,thebrightnesswouldnotreturnandwouldmeantheendoftheuseofthis,t...

TheOrigiofThings万物起源TheTheoryofFiveElements五行说TheanaentChinesepeopletendedtorefertosupematuralpowerforanexplanationofanynaturalphenomenathattheycouldnotunderstandorcontrol.中国古代先民对于无法...

听力文本如下：Seeingisbelieving百闻不如一见...

HeavenintheEyesofAncientChinesePeople古人观天Itissaidintheancienttimes,GongGong(ahalfmanandhalfsnakemonster)andZhuanXu(agod)hadahardfightforcontroloftheheaven,withZhuanXuemergingastheperatedbyfailure,...

HelenandJoeAuerhavebeeninseparableforsevendecades,andevendeathprovednomatchfortheirunbreakable,one-in-a-millionbond.海伦·奥尔和乔·奥尔携手走过七十多年从未分开过，连死神都没能把这对生死相伴...

上周，意大利罗马处于反气旋Lucifero的控制下，气温高达38摄氏度。然而，罗马100公里外有两处地方，似乎是在冬天：冰雹淹没街道，染白了城市。AsolicentochilometridaRoma,aFilettinoeaCampoStaffi,provinciadiFrosinone,sembrad...

1.Iheardyoubefore,butIcouldnotimmediatelydeterminewhattosayinreply.【翻译】我早就听见了，可是我一下子拿不准应该怎样回答你。【解说】今天的每日一说选自名著《傲慢与偏见》朗读版determine决定2.Thisshouldbefa...

TiangongKaiwu《天工开物》TiangongKaiwu,astherepresentativeworkofthefamousscientistintheMingDynastySongYingxing,wascompletedinisanency-clopediaofagriculturalandhandicraftproductiontechnologies,summingu...

TheGan,shiClassicoftheCon,stellation《甘石星经》TheChinesepeoplehavepaidgreatattentiontoastronomicalphenome-nasinceveryearlytimes.Meteorshowersandsolareclipseswhichoc-curredasfarbackasintheXiaDynasty(...

ShoushiCalendar《授时历》ShoushiCalendar，themostoutstandingcalendarinancientChina，wascompiledbyGuoShoujing，aprominentscientistintheYuanDynasty，andhiscolleagues.Enforcedin1281,throughouttheMingDynastyandth...

听力文本如下：Jackofalltrades,masterofnone.百艺不如一艺精...

TheArmillarySphere浑仪TheArmillarySpherewasanastronomicobservatoryinstrumentinancientChina.Theancientpeoplebelievedtheheavenwasround，justlikeanegg，withthestarsintheskyresemblingtheroundpillsbesetinthesh...

TheWater一drivenArmillarySphere漏水转浑天仪InthemiddleoftheEasternHanDynasty,ZhangHeng，anoutstandingastronomer,madeboldinnovationstothearmillarysphere，andde-signedandmadethefirstwater-drivenarmillarysph...

LingXian(MysticalLaws)《灵宪》Amonumentalastronomicworks，LingXian，translatedasMysticalLawsisadistillationoftheyearsofpracticeandtheoreticalresearchbyZhangHeng，afamousastronomeroftheEasternHaningwithsucht...

TheProjectionSemi-sphere仰仪Anancientastronomicinstrumentforobservation，theprojectionsemi-spherewasacreationbyGuoShoujing，anastronomeroftheYuanDy-nasty.仰仪是中国古代的一种天文观测仪器，由元朝天文学家郭守...

AbridgedArmilla简仪TheAbridgedorsimplifiedArmillawasinventedin1276byGuoShoujing(1231一1316)，anastronomerintheYuanDynasty(1271一1368)，formeasuringpositionsofcelestialbodies.简仪为元代(1271一1368)天文学家...

TheGnomon圭表Asimpleandimportantastronomicinstrument,thegnomon(aninstru-mentusedtocalculatethetime，season，andsoon)iscomposedofaverticalgnomon(abouteightphi，or2.6metershigh)andahorizontalruler.Itisdesigne...

零基础一对一外教口语课程Lesson16:hundred,thousandandmillion课程简介：外教老师在零基础的学员家中，真实拍摄全程，重点部分均有英文字幕。共58课，每课10分钟左右，全英文讲解。如果你正要参加零基础外教课，或者刚开始学英...

英语作为高考的必考科目，高三阶段的复习与冲刺将直接影响到学生的高考成绩以及他们的前途命运，因此科学合理的复习方法至关重要。接下来小编为大家整理了相关内容，希望能帮助到您。第一阶段主抓单词厘清语法脉络在第一轮...

Comet彗星Chineserecordsofcometsdatedbacktoalon,gtim,engtheSpringandAutumnPeriod,some2,200yearsago,Chinesedocumentsalreadyhadrecordsofcomets,amongwhichthemostverifiableoneistherecordofacomet,whichappea...