2026届黄冈八模答案网

(2)讨论函数∫(x)的单调性：15.36(3)若g(x)=c(x-1)-alnx+f(x)有两个零点，求实数a的取值范围.16.0.77四解答题17(1)略(2)a∈(-3,2)18(1)=0.5x+0.4长春外国语学校202...

x∈(e号，十o∞)时，g(x)<0,g(x)单调递减，∴g(x)有极大值，无极小值，B错误；由f(x)≥g(x),得a.x2e≥lnx2+lne+a,即a(x2e-1)≥ln(x2er),设t=x2e>0,.a(t-1)≥lnt;设G(t)=...

8.W:What do you want to be in the future?M:Let me see.I hate to be a teacher,or a doctor.But I like physics.I want to be a scientist!Q:What does the b...

1,设5,5为椭圆C:亡+兰25+16=1的两个焦点，P(x,y)为C上一点且在第一象限，I(x,y)为△FPF的内心，且△FPF内切圆半径为1，则A.IP=V5B.Xo=5v53C.x=2Dk标s=-412.如图，...

由mC-7可知Ce(0,受），所以血C-57方所以C是=2R.…9分5√2解得R5,所以△ABC的外接圆的面积为25π.…10分4/6【高三数学参考答案第3页（共6页）】24046C18.【答案】(1)A=...

第三部分语言运用（共两节，满分30分）第一节（共15小题：每小题1分，满分15分）阅读下面短文，从每题所给的A、B、C、D四个选项中选出可以填入空白处的最佳选项...

所以满足条件的所有x值的和为3+(-1)+2+0=4.第4期参考答案情境导入：倒n次水倒出的总水量为2+2x3+3×411利用②可以把①改写为行司)+（传）十①4×5居+日.③(n-1)nn(n+1)...

亲，深切地理解了她这样做的原因。56.bought。.考查动词-ed形式。设空处作后置定语，修饰名词flowers,buy与flowers之间是逻辑上的动宾关系，故填bought。.57.bec...

32a-1,2a-1>0所以2a2-2解得号<9341综上可知，实效a的取值范围是[分，}，…5分(2)g(x)=f(3r)=(2a-1)·32x+6·3r+a>0对任意x∈R恒成立，令t=3x>0,则(2a-1)t+6t十a>0对...

面交流变得尤为重要。34.B。理解主旨要义。根据第四段中的Some research suggests much of the workforce nowvalues a four-day workweek more than flexible wo...

荆州中学2024届高三数学十月半月考参考答案1-4.CDA D 5-8.B CAB 9.BC 10.ACD 11.ABC 12.AD13.2.514.e315.(-1,016.(0,2)17.(1)1(2)V3详解】m~=sn(得+sn任-+5 sin...

③当a≥0时，(|x|-a)(|x-a-1)<0等价于a<|x|<a十1，即-a-l<x<-a或a<x<a十l.……11分综上可得：a≤一1时，原不等式的解集为⑦；当一1<a<0时，原不等式的解集为(-a一1，a...

海南省2023一2024学年高三学业水平诊断（一）数学·答案一、单项选择题：本题共8小题，每小题5分，共40分.1.答案A命题意图本题考查交集的概念及运算，解一元二次...

GLOBAL Ecis团第二节（共15小题；每小题1.5分，满分22.5分）听第6段材料，回答第6、7题。0芳美在报社听C 6.What did Ms Green ask Sara to do?EARNINGENGLISHA.W...

整理得x2十(y一2)2=4，故C的方程为x2十(y一2)2=4.…4分(2)经过定点，设M(x1,y1),N(x2,y2),…5分则由(1)可知子一(4一为)=0，则kw=兰=西，kN=业x14-y1…6分w·kN-3,得-...

AInc.comIcons InnovatorsPowerful books Elon Musk recommendsElon Musk's must-read list exhibits his well-known and deep interest in science,as well as...

Listening ComprehensionSection A1.M:Do you know what time the train goes into the city?W:Normally it's every 20 minutes.But,this's weekend,so I'm not...

个能源密集型的过程，此外，受地缘政治的影响，金属贸易会受阻，因此该研究揭示了贵金属的一个可持续的来源七选五导语：本文是一篇夹叙夹议文，属于“人与社会”主...

全国0©所名校高三单元测试示范表her dollhing plce.She pourd all the chathe lorpnthebck in thennthhepd ot theback ordherto Rellrug Srore.Shefor the phast...

而开展的。30.B。理解具体信息。根据第四段中的“Overall,,there was an average71.9%reduction in theannual death rate”at painted turbines可知，涂色的涡轮机...

注意：1.续写词数应为150左右；2.请按如下格式作答。Right then,Jacob decided to throw himself abirthday party.Jacob was crying hard when he heard a softv...

项，使短文意思通顺，并在答题卡上将该项涂黑。选项中有一项为多余项。We all have to ask for favors (sometimes.But it can be a difficult thing to do-evenw...

第四部分写作（共三节，满分40分）第一节词形转换（共10小题；每小题1分，满分10分）根据所给单词，写出单词的正确形式（每空一词）。66.Speed was of the(essen...

at school and work.Having a couple of hobbies is a huge jump in self-identification.You can'tgo wrong with learning a new language,or figuring out how...

【答案】 One possible version: A Charity Sale Activity On the afternoon of April 13th,a charity sale activity was held on our school playground.In ord...

the mall yesterday? M:Yes,she loved it.I took some photos that we can use on a holiday card to send to my mother. W:Perfect! (Text 8) W:Hey,Simon.Have...

【答案与解析】 作者患了抑郁症，但没有被打倒，而是积极地生活，并且取得 了事业上的成功。 20.A根据下文的with extracurricular activities and social e vent...

petition,I understand that it is confidence which makes people succeed.