江西省南昌县2023-2024学年度第一学期七年级期末考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江西省南昌县2023-2024学年度第一学期七年级期末考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
江西省南昌县2023-2024学年度第一学期七年级期末考试物理试卷答案试卷答案
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-ENGLISHNEEKLY关治国板高课标掌上周报微信小程序英语周报智能小助手(2022-2023)第19期第四部分写作（共两节，满分35分）第一节短文改错（共10小题；每小题1分，满分10分）day,Istudywithmyclassmate,andwemakeprogresstogether.They假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文
文有10处语言错误，每句中最多有两处
每weremyfamily.Wehavemadeaplantakesomepicturesinhonorto处错误仅涉及一个单词的增加、删除或修改
增加：在缺词处加一个漏字符号(A),并在其下面写出该加的ourschoollife.Wewilldressupbutgotoeverycornerofthecampus词
(totakepicturesbyimitatethemovieposters.Webelievethere删除：把多余的词用斜线()划掉
修改：在错的词下划一横线，并在该词下面写出修改后的词willbemanyotherstudentswhichwillalsothinkitisfun.Ifthey'd注意：1.每处错误及其修改均仅限一词：2.只允许修改10处，多者（从第11处起）不计分liketojoinus,andwewillwelcomethemwarmly.I'msurewewillallHighschooltimewillbeparticularunforgettableforme.Everyhavegreatfunanditwillbecometheirsweetestmemory.第二节书面表达（满分25分）假定你是李华，现在正在英国留学
为鼓励学生锻炼身体、强健体魄，你校将于近期举办一次自行车骑行活动，你对此很感兴趣
请你用英语给相关负责人写一封邮件，询问有关情况
内容包括：1.活动的具体时间：2.是否提供多种路线选择：3.是否需要自带食物和水注意：1.词数100左右：2.可以适当增加细节，以使行文连贯
本套试题配有答题卡，扫扫即可下载；推荐登录PC端英语教师网www.ewteacher.com下载使用
选做题thatarestillgrowingandeatingtheirtraditionalstaples(主食)一for阅读下面短文，从每题所给的A、B、C和D四个选项中，选出最佳example,SouthAsiaandWestAfrica-wereleastdependentonforeign选项
crops.★★★★女Furthermore,overthepast50years,theworld'sdietarydependenceSomepeoplemaybedimly(模糊地)awarethatThailand'schiliesonforeigncropshasincreasedfromaround63%tothecurrent69%.andItaly'stomatoesoriginatedinSouthAmerica.Now,forthefirsttime."Culturesadoptforeigncropsveryquicklyaftercomingintocontactwithanewstudyshowsmorethantwo-thirdsofthecropsthatsupportnationalthem,"Khourysays,pointingoutthatpotatoeswerebeinggrownindietsoriginallycamefromsomewhereelse-oftenfaraway.PreviousEuropejust16yearsafterbeingdiscoveredintheAndes."We'vebeenworkhadshownthatnationaldietshaveadoptednewcropsandbecomeconnectedgloballyforages,andyetthere'sstillchangegoingon.'moreandmoregloballyalikeinrecentdecades.Thenewstudyshowsthat1.Whatdoesthenewstudyshow?thosecropsaremainlyforeign.ColinKhoury.thestudy'sleadresearcherandhiscolleagueslookedA.Nationaldietshaveadoptednewcrops.fortheoriginsof151differentcropsacross23geographicalregionsB.Nationalcropslargelycomefromforeigncountries.C.Nationalcropsfailtofeedthenation'spopulation.x).TheythenexaminednationalstatisticsfordietandfoodproductioninD.Nationaldietsbecomemoregloballyalikegradually.177countries,covering98.5%oftheworld'spopulation2.Whatdidthescientistsdointheirresearch?IntheUnitedStates,thedietdependsoncropsfromtheA.TheystudiedthediversityofwildplantsMediterraneanandWestAsia,likewheatandothers.Meanwhile,theU.S.B.Theycomparedthenationaldietsofdifferentcountries.farmeconomyiscenteredonsoybeansfromEastAsiaandmaizefromC.Theyresearchedintotheoriginsofnumerouscountries'crops.MexicoandCentralAmerica,aswellaswheatandothercropsfromtheD.TheyfocusedontradebetweentheU.S.andothercountries.Mediterranean.TheU.S.isitselftheoriginofsunflowers,whichcountries3.WhatdidPaulthinkaboutthenewfindings?fromArgentinatoChinagrowandconsumeA.Theyconflictedwithpreviousfindings.订PaulGepts,aprofessorattheUniversityofCalifornia,Davis,calledB.Theyprovidedpracticalmeasuresforprofessionals.thefindingsveryimportant."ProfessionalsareawareofglobalC.Theycouldhelppeopleunderstandtheirfood'sorigins个人订户：interdependence,butthisisnotsomethingmostpeoplehavethoughtD.Theyexplainedwhythetraditionaldietisdisappearing.L订阅热线：about,"hesays."Thiscouldreallyhelppeopleunderstandwheretheir4.WhatdoKhoury'swordsinthelastparagraphmainlyimply?2扫描下方foodcomesfrom.A.Globalizationspeedsuptheexchangeofcrops.Regionsfarfromcentersofagriculturalbiodiversity(生物多样性)B.Typesofcropsareincreasingrapidly.回suchasNorthAmerica,northernEuropeandAustralia-aremostC.PotatoeshavealonghistoryinEuropedependentonforeigncrops.However,countriesinregionsofdiversityD.PotatoesoriginatedintheAndes.山西梁美婷本报采编中心(听力材料及参考答案见下期第4版；部分解析见《牧师用报参考》第3期)集体订户：请址：山青省太原市青阳物加号黄语因费诗：全国各地邮局（所帆对曾：本报发行都·的韩颈：然
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江西省南昌县2023-2024学年度第一学期七年级期末考试物理试卷答案第一部分
14.(12分)如图所示,一个半径为R、折射率为2的透明半球体,O为球心,放置在水平桌面上,半球体的平面与桌面平行。有一束横截面足够大的光束竖直射向半球体,不计半球体内表面的多次反射。求:(1)能透过半球体的光束的横截面积S1;(2)透过半球体的光束在桌面上形成的光斑面积S2。
江西省南昌县2023-2024学年度第一学期七年级期末考试物理试卷答案第二部分（待更新）
15.(18分)当有移动物体靠近门时,门实现了自动开启及关闭,我们称这种门为自动感应门。这种自动感应门广泛应用于办公楼、厂房、超市、机场等场所。图a为自动感应门,门框上沿中央安装有传感器,当人或物体与传感器的水平距离小于或等于某个设定值(可称为水平感应距离)时,中间两扇门分别向左右平移,当人或物体与传感器的距离大于设定值时,门将自动关闭。图b为感应门的俯视图,A为传感器位置,虚线圆是传感器的感应范围,已知每扇门的宽度为d=1.6m,,最大移动速度为v0=0.8m/s,,若门开启时先匀加速运动而后立即以大小相等的加速度匀减速运动,每扇门完全开启和结束时的速度刚好为零,移动的最大距离可当成等于门的宽度,不计门及门框的厚度。(1)求门开启时做加速和减速运动的加速度大小;(2)若人以v=1.2m/ss的速度沿图中虚线s走向感应门,要求人到达门框时左右两门同时各自移动d/2的距离,那么设定的传感器水平感应距离1应为多少?(3)若以(2)的感应距离设计感应门,欲搬运宽为b=2.8m的物体(厚度不计),并使物体中间沿虚线s垂直地匀速通过该门(如图c),物体的移动速度不能超过多少?
