[宜宾二诊]2024届宜宾市普通高中2021级第二次诊断性测试物理试卷答案试卷答案,炎德英才答案网站目前收集并整理关于[宜宾二诊]2024届宜宾市普通高中2021级第二次诊断性测试物理试卷答案试卷答案得系列试题及其答案，更多试题答案请关注我们

[宜宾二诊]2024届宜宾市普通高中2021级第二次诊断性测试物理试卷答案试卷答案

以下是该试卷的部分内容或者是答案亦或者啥也没有，更多试题答案请关注微信公众号：趣找答案/直接访问www.qzda.com(趣找答案)

Step:Wetouchourfacesaround3,000timesaday-ofteninvitinggerms()toenterourmouth,nose,andeyes.Usetoiletpapertoavoidtouchingthedoorhandle.And,mostimportantly,washyourhandsoftenwithhotrunningwaterandsoapfor20seconds.3.Howoftendoyouthinkaboutfightinggerms?Finding:Seniorsarenotfightinggermsaswellastheyshould.Step:Beawareofgerms.Doyouknowitisnotyourtoiletbutyourkitchensponge()thatcancarrymoregermsthananythingelse?Tokillthesegerms,keepyourspongeinthemicrowavefor10seconds.1.WhatisfoundoutaboutAmericanseniors?A.Mostofthemhavegoodhabits.B.Nearly30%ofthembathethreedaysaweek.C.Allofthemarefightinggermsbetterthanexpected.D.Aboutonethirdofthembrushtheirteethonlyonceaday.2.DoctorssuggestthatpeopleshouldwashtheirhandsA.twiceadayB.eighttimesadayC.fourtimesadayD.threetimesaday3.Whichofthefollowingistrueaccordingtothetext?A.Weshouldkeepfromtouchingourfaces.B.Akitchenspongecancarrymoregermsthanatoilet.C.Therearelessthan300typesofbacteriainthemouth.D.Weshouldwashourhandsbeforetouchingadoorhandle.4.ThetextprobablycomesfromA.apopularmagazineB.abookreviewC.aguidebookD.anofficialdocument【语篇导读】本文是一篇说明文

文章主要关注美国老年人健康习惯的问题

文章列出几种老年人需要遵守的良好健康习惯状况的调查结果，并分别提供了相应的专家建议

l.D细节理解题

由第一个问题Finding部分的Afull33%ofseniorsbrushtheirteethonlyonceaday.可知，大约三分之一的美国老年人每天仅刷一次牙

2.B细节理解题

由第二个问题Finding部分的Andnearly30%washtheirhandsonly4timesaday-halfofthenumberdoctorsrecommend.可知，几乎百分之三十的老年人一天只洗四次手一是医生推荐量的一半，即医生建议一天要洗八次手

3.B细节理解题

由第三个问题Step部分的Doyouknowitisnotyourtoiletbutyourkitchenspongethatcancarrymoregermsthananythingelse??可知，厨房的海绵携带病菌的数量要比厕所还要多

4.A推理判断题

本文主要讲述美国老年人的健康习惯，是一篇健康类说明文，因此推断应该刊登在受欢迎的杂志上

二、七选五（共5小题；每小题4分，满分20分）根据短文内容，从短文后的选项中选出能填入空白处的最佳选项

选项中有两项为多余选项

Weallknowaboutthehealthbenefitsofswimming,includingbuildingendurance,musclestrengthandcardiovascular(fitness.5Manypeoplefeelthatswimmingisveryexcitingandrelaxing.Cold-waterswimming-sometimescalledwildswimming-involvesswimminginnaturalareasincludingponds,riversandthesea.Jumpingincoldwatergivesashortsharpshocktothebody.6Acolddipmightwakeyouup,butresearchhasfounditcanhavemuchbiggerbenefitsthanthoseforyourbodyandmind.Aswellasbeinggoodexercise,cold-waterswimmingimproveswell-being.7Onemanwhosufferedconstantpainaftersurgeryclaimedhewascuredbytakingaswimincoldopenwater.Andanotherswimmer,SandriaSimons,toldtheBBC"theimmersionofyourbodyincold,saltwater,justfeelinglikeyou'reatonewithnatureifyoulike,justfeelsamazing."Whatisitthatpeoplearegainingfromthiscoldexperience?Doctorssaygettingintocoldwatermakesastressresponse,butthemoreyoudoit,yourreactiontostressisreduced.8Inaddition,cold-waterswimmingcanexerciseswimmers'willpower.Buttherearebiggerbenefitsofthisexercise.Someexpertsbelievecold-waterswimminghelps"cross-adaptation",whereoneformofstresspreparesthebodyforanother.9·41·

[宜宾二诊]2024届宜宾市普通高中2021级第二次诊断性测试物理试卷答案第一部分

1.关于原子物理的基础知识,下列说法正确的是A.β衰变是原子的核外电子被激发出来B.放射性元素Th由地球拿到月球表面时半衰期减小C.放射性元素经一次α衰变和两次衰变,原子核内的电荷数不变D.比结合能越小原子核越稳定

[宜宾二诊]2024届宜宾市普通高中2021级第二次诊断性测试物理试卷答案第二部分（待更新）

5.正对着并水平放置的两平行金属板连接在如图所示的电路中,板长为l,板间距为d,在距离板的右端2l处有一竖直放置的光屏M。D为理想二极管(即正向电阻为0,反向电阻无穷大),R为滑动变阻器,R0,为定值电阻。将滑片P置于滑动变阻器正中间,闭合开关S,让一带电荷量为q、质量为m的粒子从两板左端连线的中点N以水平速度v0射入板间,粒子未碰到极板,最后垂直打在M上。已知重力加速度为g,在保持开关S闭合的情况下,下列分析或结论正确的是MA.粒子在板间运动的过程中与它从板的右端运动到光屏的过程中速度变化量相同B.板间电场强度大小C.若仅将滑片P向下滑动一段后,则粒子不会垂直打在M上D.若仅将两平行板的间距变大一些,则粒子不会垂直打在M上