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江西省2024年中考模拟示范卷 JX(一)1-物理试卷答案试卷答案

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Fromtheageoffive,AlisonMbekeani,nowinDurhamUniversityforherPhD,dreamedofbecomingascientist.Butbecomingamothertotwochildrenputabrakeonhercareer.Shedoesnotexpecttoreturtothelabuntilherchildrenare16.Dr.Mbekeaniisnotalone.Onesurveyin2019foundthatchild-careresponsibilitiesled2fmherwithachildunder14toreducetheirworkinghourcomparedwithjust5%offathers.Inanidealworld,thegovernmentwouldnothavetoworryaboutanyofthis.Basedontheirpreferences,parentswouldmakeajudgmentoverwhethertooutsource(child-careorkeepitin-house.Thequestionforpolicymakersiswhetherparentalbehaviorreflectsactualpreferencesoritisdrivenbyconstraints()Constraintsareanissue.Threeinfivenonworkingmotherssaythattheywouldprefertowork,giventherightchild-care.Familieshadtoforkoutanaverageof260aweekin2021for50hoursofnurserycareforachildundertwo.Atenthofhouseholdswithachildunderfivereportdifficultymeetingsuchcosts.Aswellasprice,availabilityisaproblem.Just68%oflocalauthoritiesinEnglandreporthavingenoughchild-careprovisiontoserveparentswhoworkfulltime.Besideschild-care,thebenefitsthatcouldflowfromeveningoutthegender)imbalanceinchild-carecouldalsobeprettylarge.Onerecentstudyestimatedthegainsfromfflingmenandwomenaccordingtoability,pullingproductivewomenintoworkandkickingunproductivemenout.Astonishingly,itwascalculatedthatBritain'saverageoutputperworkercouldbeasmuchas30%higher.Cheaperchild-careandgender-balancedresponsibilityinitarewaysouttohelpmumsintowork,butpolicieswouldneedtobedesignedtotargetreallyconstrainedparents.However,expertsalsoaddthatgivingchildrenthebeststartinlifemeansshorter,structureddaysfullofinteraction.28.WhyisthestoryofAlisonmentioned?A.Toconfirmanidea.B.Todeveloptheplot.C.Todrawaconclusion.D.Tointroducethetopic.29.Whatisthegovernment'skeyfocusaboutchild-careproblem?A.Theinfluenceofparents'finaldecision.B.Thedifferenceofchildren'spreference.C.ThebalanceofresponsibilitytodohouseworkD.Theconsistencyofparentalbehaviorandactualliking.高三大联考·英语第6页（共12页）

江西省2024年中考模拟示范卷 JX(一)1-物理试卷答案第一部分

江西省2024年中考模拟示范卷 JX(一)1-物理试卷答案

9.如图所示为一正四棱锥,底面四个顶点A、B、C、D上依次固定电荷量为+q、qq-q、q的点电荷,O点为底面中心,规定无穷远处电势为零,则A.O点处电场强度方向由O指向BB.E点处电场强度不为零,电势为零C.将一电子从O点沿直线移动到CD边中点,其电势能逐渐增大D.将一电子从O点沿直线移动到E点,电场力先做正功后做负功9

江西省2024年中考模拟示范卷 JX(一)1-物理试卷答案第二部分（待更新）

15.(7分)近期多地遭遇降雪天气,雪后树枝上形成了美丽的冰溜,如图所示。某时刻,一断裂的冰溜落向地面,到达地面前的最后1s内,冰溜的平均速度大小v=10m/s。。已知冰溜断裂时的初速度可视为零,下落过程中忽略空气阻力,且可视为质点,重力加速度g取(1)冰溜到达地面前的最后1s内下落的高度h;10m/s^2。。求:(2)冰溜在空中下落的时间t和开始下落时离地面的高度H。