而h(-罗)=e>0,h(0)=0,因此函数h(x)在(-罗,0]上有唯一零点,…14分所以方程h(x)一1=0在区间(一π,0]上有且仅有两个根.…15分18.1)由椭圆C:若+兰=1可得c=V6-2=2,所以双曲线N的顶点为(2,0),…1分设双曲线N为后一若-1,因为双曲线N的的离心率为区,所以号-E,即6=a…2分又因为a2十b=c2,所以a=b=2,…3所以双圃线N的方程为写-羊-1:…4分(2)设E(x1y1),F(x2y2),G(x3,y3),H(x4y4),设直线QF1的方程为x=my一2,直线QF2的方程为x=ny十2,5分x=my-2由g+兰=1得:(m+3)y-4my-2=0,64mm2+3y1y2=2所以△>0显然成立,所以y1十y2=7m2+3'”””…”·”分4n2同理可得十y4=一n2+3y=n2+3'8分所以EF=√/(1+m)L(y+2)2-4y2]=1+m2)[16mmm+3+87=26(m2+1)m2十3m2+3…心…………………………………+,8=26(+1)IGm-7+32,…10分2m+2nx=my-2m-n联立直线QF1和QF2:解得x=ny+2y=m-n所以Q(2m+2,4),11分m-nm-n因为Q在双曲线上,所以2m+2)2164(m-n)24(m-n)=1,解得m=1,12分m中46-3层锅4装-3g装×1m2+3n2+31m十3=26+件动)=2v×生×+4×动)(0+点晋》1+3mm2+1十m2十1),-96+%+4x96:债3m×4xm3)=9y51+3m2216分当且仅当诗=1×品月㎡=5时取得最小值17分m2+3数学参考答案第7页
因为4+z2>4,0
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17:1445G48项相符合。故选B。35.C细节理解题。根据文章第五段第四句可知,高收人国家应该开始报告他们的计划和行动,这与C选项相符合。故选C本文是一篇说明文。文章主要介绍了自爱的重要性36.A上文提到我们在无数次鼓舞人心的演讲中听到,自爱是幸福生活的基础。下文提到因为我们从一开始就被教导要无私并解释了我们无法自爱的原因。故A项“为什么我们仍然不会爱自己呢“承上启下,符合语境故选A。37.F上文提到“当我们开始考虑自己的那一刻,我们周围的每个人都会提醒我们自己有多自私”,下文提到“爱自己并不是自私的行为”。放可推知F项符合语境。故选F。38.E下文提到树根越强壮,风就越难刮倒树枝。E项“自爱是你所有健关系的根”引出下文,符合语境。故选E。39.D下文提到我们也被教导要互相照顾。但是,我们中有人问过自己,世界上我们最应该关心谁吗?我们的父母?家人朋友?亲属?答案很简单:我们自己!D项“我们被教导要关心身边的每一个人”引出下文,符合语境。故选D。40.C上文提及期待别人来照顾你是不可能的。C项“只有你才是最能照顾好你自己的人“承接上文,符合语境故选C。本文是一篇记叙文。作者搬到瑞士巴塞尔附近的一幢公富后,偶遇了伯恩山犬。文章讲的是作者与狗的相遇,从陌生到后面熟悉成为“好友”的一段经历4l.C考查动词辨析。根据“an elderly woman on her daily walk behind my home“可推断出,伯恩山犬陪伴一位老妇人。故选C42.B考查名词辨析。根据空前的“the same'”和空后的“encounters'"可推知,作者也喜欢每天走那条相同的步道,所以作者和伯恩山犬常常能碰上。故选B。43.C考查形容词辨析。根据“every day”可推知,作者和伯恩山犬的邂逅是频繁的。故选C44.A考查名词辨析。根据上文可知狗陪伴主人散步,这里指的是它像个保镖。故选A。45.A考查动词辨析。由下文作者的原则“not to touch anyone''s dog without asking”可知,此处指的是作者欣赏这漂亮的伯恩山犬,但没有接近它。故选A。46.D考查名词辨析。根据“sensing a clear invitation to do so”可知,作者没得到允许是不会接触狗的。故选D47.B考查动词辨析。此处表示“狗的主人总会(主动跟我打招呼)用当地的瑞士方言对我说一两句客套话”。故选B48.C考查副词辨析。由上文“little of which I understood”和下文“just smile and pass'”可知,作者起初并不能完全听懂。故选C。49.C考查名词辨析。根据“a sharp warning bark“可知,作者与Ei和伯恩山犬相遇时,它总是会谨慎地盯着作者.并发出尖镜的吠叫出。故洗C50.D考查动词短语辨析。根据文意“这种情况一周又一周地持续”可知,此处表示时光流逝。故选D。5l.D考查动词辨析。根据下文“a deeply rolled‘R'and long‘O'"可知,此处表示的是“发音”。故选D52.A考查形容词辨析。由上文“tumed into”可知,狗的叫声变了,变成儿乎友好的汪汪声。故选A。53.B考查动词短语辨析。由“a pleasant word or two”和“several sentences'”可知,作者和老妇人Ei的对话变长了。故选B。54.B考查形容词辨析。由“despite”和作者听不懂瑞士当地的方言可知,作者的口音不是当地的口音。故选B。高三·英语第4页(共7页)今上进联考更专业更放心55.A考查名词辨析。由“as if allowing me to bestow(授予)on him his entitled knighthood”可知,狗把它的头放在作者手下,表达一种喜欢之情。故选A本文是一篇说明文。文章介绍了煎饼和煎饼摊这一深具中国特色的饮食文化。56.hat考查定语从句。先行词为指物的不定代词“everything”,且用作限制性定语从句的宾语,故填关系代词that。57.readily考查副词。这里填提示形容词的副词形式readily作状语,表示“欣然地:乐意地”58.a考查冠词。此处指在煎饼摊前面总是会排起一条长队。故填S9.starvation考查词性转换。此处需填介词“with"的宾语,同时所填词又被形容词“extreme"修饰,故填提示词的派生名词。60.To preserve考查非谓语动词。本句提到煎饼从不提前做好的目的在于保持煎饼和油炸馄饨皮的松脆口感,故填动词不定式作目的状语。61.s考查主谓一致。单个动名词短语作主语,谓语动词用单数,且此处讲述的是一般性的情况。故填s62.silent考查形容词。修饰名词需用形容词,“observation(观察)”是一个名词,空格处需填其修饰语,即提示词的派生形容词。63.will have考查时态。此处考查固定句式,祈使句+or+一般将来时,表示“(如果你想更快吃好早餐)你需要去买包子或其他食物,否则你将没有更快的早餐可以吃了“64.uscd考查非谓语动词。过去分词在此用作后置定语,相当于定语从句hat/which are心uscd。65.without考查介词。此处指如果没有大师的指导和数月的练,你无法自己独立做出这种煎饼One possible versionOur school newspaper recently conducted a survey to explore the eating preference of students,and the results areshown in the provided chart.The chart reveals some striking statistics.Meat dominates our diet,with an astonishing 90%of students opting forit,while vegetables are the least favored,chosen by only 23%of participants.Surprisingly,soft drinks hold asignificant share,making up78%of our eating preference.Additionally,more than half of the respondents favorsnacks.The data offer valuable insights.In summary,it's evident that students should increase their vegetable intake andreduce their consumption of soft drinks and snacks to lead a healthier life.It's crucial that we take action rather thanbeing satisfied with our current eating preferenceOne possible versionRuth smiled and explained she was actually helping Jackson.Jackson needed the work and money badly.Hewasn't asking for charity,but for good honest work.Jackson's wife was ill,and their insurance couldn't cover all herhospital costs.Jackson barely had enough to live,which was why he needed to work.Jolene understood it and praisedher for what she had done.Then he asked why Ruth didn't give him the money.Ruth said she'd rather give him workso he could earn the money and keep ms sen-respect.
17:1445G48项相符合。故选B。35.C细节理解题。根据文章第五段第四句可知,高收人国家应该开始报告他们的计划和行动,这与C选项相符合。故选C本文是一篇说明文。文章主要介绍了自爱的重要性36.A上文提到我们在无数次鼓舞人心的演讲中听到,自爱是幸福生活的基础。下文提到因为我们从一开始就被教导要无私并解释了我们无法自爱的原因。故A项“为什么我们仍然不会爱自己呢“承上启下,符合语境故选A。37.F上文提到“当我们开始考虑自己的那一刻,我们周围的每个人都会提醒我们自己有多自私”,下文提到“爱自己并不是自私的行为”。放可推知F项符合语境。故选F。38.E下文提到树根越强壮,风就越难刮倒树枝。E项“自爱是你所有健关系的根”引出下文,符合语境。故选E。39.D下文提到我们也被教导要互相照顾。但是,我们中有人问过自己,世界上我们最应该关心谁吗?我们的父母?家人朋友?亲属?答案很简单:我们自己!D项“我们被教导要关心身边的每一个人”引出下文,符合语境。故选D。40.C上文提及期待别人来照顾你是不可能的。C项“只有你才是最能照顾好你自己的人“承接上文,符合语境故选C。本文是一篇记叙文。作者搬到瑞士巴塞尔附近的一幢公富后,偶遇了伯恩山犬。文章讲的是作者与狗的相遇,从陌生到后面熟悉成为“好友”的一段经历4l.C考查动词辨析。根据“an elderly woman on her daily walk behind my home“可推断出,伯恩山犬陪伴一位老妇人。故选C42.B考查名词辨析。根据空前的“the same'”和空后的“encounters'"可推知,作者也喜欢每天走那条相同的步道,所以作者和伯恩山犬常常能碰上。故选B。43.C考查形容词辨析。根据“every day”可推知,作者和伯恩山犬的邂逅是频繁的。故选C44.A考查名词辨析。根据上文可知狗陪伴主人散步,这里指的是它像个保镖。故选A。45.A考查动词辨析。由下文作者的原则“not to touch anyone''s dog without asking”可知,此处指的是作者欣赏这漂亮的伯恩山犬,但没有接近它。故选A。46.D考查名词辨析。根据“sensing a clear invitation to do so”可知,作者没得到允许是不会接触狗的。故选D47.B考查动词辨析。此处表示“狗的主人总会(主动跟我打招呼)用当地的瑞士方言对我说一两句客套话”。故选B48.C考查副词辨析。由上文“little of which I understood”和下文“just smile and pass'”可知,作者起初并不能完全听懂。故选C。49.C考查名词辨析。根据“a sharp warning bark“可知,作者与Ei和伯恩山犬相遇时,它总是会谨慎地盯着作者.并发出尖镜的吠叫出。故洗C50.D考查动词短语辨析。根据文意“这种情况一周又一周地持续”可知,此处表示时光流逝。故选D。5l.D考查动词辨析。根据下文“a deeply rolled‘R'and long‘O'"可知,此处表示的是“发音”。故选D52.A考查形容词辨析。由上文“tumed into”可知,狗的叫声变了,变成儿乎友好的汪汪声。故选A。53.B考查动词短语辨析。由“a pleasant word or two”和“several sentences'”可知,作者和老妇人Ei的对话变长了。故选B。54.B考查形容词辨析。由“despite”和作者听不懂瑞士当地的方言可知,作者的口音不是当地的口音。故选B。高三·英语第4页(共7页)今上进联考更专业更放心55.A考查名词辨析。由“as if allowing me to bestow(授予)on him his entitled knighthood”可知,狗把它的头放在作者手下,表达一种喜欢之情。故选A本文是一篇说明文。文章介绍了煎饼和煎饼摊这一深具中国特色的饮食文化。56.hat考查定语从句。先行词为指物的不定代词“everything”,且用作限制性定语从句的宾语,故填关系代词that。57.readily考查副词。这里填提示形容词的副词形式readily作状语,表示“欣然地:乐意地”58.a考查冠词。此处指在煎饼摊前面总是会排起一条长队。故填S9.starvation考查词性转换。此处需填介词“with"的宾语,同时所填词又被形容词“extreme"修饰,故填提示词的派生名词。60.To preserve考查非谓语动词。本句提到煎饼从不提前做好的目的在于保持煎饼和油炸馄饨皮的松脆口感,故填动词不定式作目的状语。61.s考查主谓一致。单个动名词短语作主语,谓语动词用单数,且此处讲述的是一般性的情况。故填s62.silent考查形容词。修饰名词需用形容词,“observation(观察)”是一个名词,空格处需填其修饰语,即提示词的派生形容词。63.will have考查时态。此处考查固定句式,祈使句+or+一般将来时,表示“(如果你想更快吃好早餐)你需要去买包子或其他食物,否则你将没有更快的早餐可以吃了“64.uscd考查非谓语动词。过去分词在此用作后置定语,相当于定语从句hat/which are心uscd。65.without考查介词。此处指如果没有大师的指导和数月的练,你无法自己独立做出这种煎饼One possible versionOur school newspaper recently conducted a survey to explore the eating preference of students,and the results areshown in the provided chart.The chart reveals some striking statistics.Meat dominates our diet,with an astonishing 90%of students opting forit,while vegetables are the least favored,chosen by only 23%of participants.Surprisingly,soft drinks hold asignificant share,making up78%of our eating preference.Additionally,more than half of the respondents favorsnacks.The data offer valuable insights.In summary,it's evident that students should increase their vegetable intake andreduce their consumption of soft drinks and snacks to lead a healthier life.It's crucial that we take action rather thanbeing satisfied with our current eating preferenceOne possible versionRuth smiled and explained she was actually helping Jackson.Jackson needed the work and money badly.Hewasn't asking for charity,but for good honest work.Jackson's wife was ill,and their insurance couldn't cover all herhospital costs.Jackson barely had enough to live,which was why he needed to work.Jolene understood it and praisedher for what she had done.Then he asked why Ruth didn't give him the money.Ruth said she'd rather give him workso he could earn the money and keep ms sen-respect.
(人教)答案页第10期(4)③小球从A到B的过程中,部分机械能转化为其他形式的能,所以小球无法到达与A点等高的位置,即不可能是轨迹①②(合理即可)第40期S12.1杠杆基础巩固1.B2.B3.C4.靠近减小5.省206.如图1所示图17.(1)左(2)在右边第二格处悬架3个钩码;在右边第三格处悬挂2个钩码(答案合理即可)。(3)得出杠杆衡的普遍规律能力提高8.A9.D10.费力7511.如图2所示A图2已知杠杆AC为轻质杠杆,则其重力可忽略不计。由图可知,动力臂11为OC,阻力臂为OB。由AO=OB=BC可知,OC=2OB。根据杠杆的衡条件可得FjxOC=F2xOB因F2=G=6N,OC=2OB,则可求得F=3N。12.(1)衡(2)大倾斜拉动时,动力臂减小,阻力与阻力臂不变,所以动力会变大,即弹簧测力计的示数会变大(3)实验次数过少,无法保证得出的结论具有普遍性第3页
第41期S12.2滑轮基础巩固1.D2.C3.A提示:不计摩擦、绳重和滑轮自重,使用动滑轮能省一半的力,物体的重力为400N,则拉力为200N;使用动滑轮时,绳子的自由端通过2m,物体上升1m:由图可知,钩该装置由一个动滑轮和一个定滑轮组成:使用动滑轮能省力,但费距:离,使用定滑轮能改变力的方向。4.(1)物体的重力拉力的大小(2)F1=F2=F3(3)能够改变力的方向5.B D6.如图1所示按钮阻ittt图17.(1)若不计滑轮及绳重和摩擦,手的拉力为求F,=2G0=7×10N=-50N(2)若动滑轮重G动=10N,不计臂绳重和摩擦,手的拉力为动会Fs=2(G+G)=2×(100N+10N)=55N证能力提高8.D
1、[学考大联盟]2023-2024学年度高三5月联考答案(化学)20.【答案】(10分)(1)增大钙片与稀盐酸的接触面积,使反应更充分(1分)(2)细口瓶(1分)CaCL,、HC1(1分)(3)(6分)解:设反应消耗的稀盐酸溶质的质量为xCaCO,+2HCl-Ca
20.【答案】(10分)(1)增大钙片与稀盐酸的接触面积,使反应更充分(1分)(2)细口瓶(1分)CaCL,、HC1(1分)(3)(6分)解:设反应消耗的稀盐酸溶质的质量为xCaCO,+2HCl-CaCl,+H,O+CO,T73442.2g7344x2.2gx=3.65g稀盐酸溶质质量分数为:3.65×10%=73%50g答:稀盐酸溶质质量分数是7.3%。(4)0.1g(1分)【分析】(1);反应前将钙片粉碎的目的是增大钙片与稀盐酸的接触面积,使反应更充分。(2)稀盐酸是液体药品,存放在细口瓶,B点稀盐酸过量,溶液的溶质有CaCL,、HCl;(3)解:设反应消耗的稀盐酸溶质的质量为xCaCO,+2HCl-CaCl,+H,O+CO,73442.2g7344x2.2gx=3.65g答:稀盐酸溶质质量分数为3.658×100%=7.3%50g(4)解:设反应消耗的20片钙片中CaC0,的质量为yCaC0,+2HCl—CaCL+H,0+C0,↑10044y2.2g10044y2.2gy=5g所以每片钙片中含有CaC0,质量为0.25gM(Ca)=0.25g×40×100%=0.1g.1004化学终极一考卷(J)共4页


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