cn=2t（n→)【高三数学第1页（共4页）】【高三数学第2页（共4页）】B.√3A.√2an=a,+（n)D.4√3C.3√2积的最大值为7.已知△ABC的内角A，B，C的对边分别为a，b，c，若2a-c=2bcos C，b=4，则△ABC的面（2）已知{a}为等差数列，且b=BAD（1）当t=4时，求{a）的通项公式；学校已知数列{an}的前n项和为Sn，且S=n一3n+t3n=na+nn115.（13分）四、解答题：本题共5小题，共77分.解答应写出文字说明、证明过程或演算步骤。6.函数f（x）=位于第象限，I为△PFF2的内心，若S△IPF=S△IPF[-]0△FF，则双曲线C的离心率6214.已知FF2分别是双曲线C：A.（-00，—=1（a>0，6>0）的左、右焦点，点P在双曲线C上，且yU[1,+00），则 tan513已知 sina+cos a5.已知函数f（x）=ell+In（x²+1)，若f（x+2）≥f（3x），则x的取值范围为7C.（x-2)²+（y+1)²=130（-)+（-x)班级12.已知向量a=（6，x+6），b=（3,2x），若a/b，则｜b丨=B.（x+3)²+（y-1)²=10A.（x-2)²+（y-1)²=5三、填空题：本题共3小题，每小题5分，共15分04.已知面内有A（0,2），B（2，-2），C（4，4）三点，则△ABC的外接圆的方程为42C.Pn=C.若m⊥a，n⊥β，且a⊥β，则m⊥nD.P

increasingly sought aftercolleagues reach out for advice, and he lectures on digitalizationin forestry at the Rottenburg University of Applicd Forcst Sciences. But he warns thattechnology can never replace a walk through the forest: “I should never believe that thedigital twin is reality. I always have to do a reality check."24. What effect has climate change on Martin Roth's work?A. It made his job focus on long-lasting forest continuity.B. It reduced the importance of traditional forestry skills.C. It required him to abandon technology-based methods.D. It shifted his role toward managing unexpected disasters.25. How do drones help Roth after a disastrous storm?A. Kill bark beetles quickly.B. Assess forest damage efficiently.C. Predict the future climate change. D. Replace the work of ground workers.26. What does Roth imply by mentioning “reality check" in the last paragraph?A. Digital tools must be tested in extreme weather.B. AI's calculations are often unsafe and unreliable.C. Technology will soon make forest rangers unnecessary.D. Virtual models cannot fully replace on-site inspections.27. What is the purpose of the text?A. To describe the life story of a German forest ranger.B. To warn about the dangers of climate change to forests.C. To introduce how technology transforms modern forestryD. To criticize the overuse of drones in environmental protectionCThe mental pain of failure can stimulate you to become better at the activity in whichyou lack proficiency—if you can consider the unpleasant experience as an indicator ofpersonal growth. This is what researchers found when they conducted a field experiment atan improvisation (即兴表演） club. One group of amateur improvisers was instructed toimprovisers who were not given this instruction, the first group was more engaged in theexercise. Instead of seeing the discomfort as something to avoid, they saw it as central tothe process and leaned into it.This has effects on how to improve ordinary life. You can put failure to good use inmany other areas of life. If you're a student, take a class far outside your area of skills and a o 英语试题第5页共12页夸克扫描王极速扫描，就是高效尚

九年级期中测试英语参考答案听力部分I.情景反应根据你所听到的句子，选择恰当的应答语。1. Do you like grapes or apples, Roy?2. Hey, what's your T-shirt made of?3. Did you use to be shy?4. When did Sam hurt his leg?5. The window is made of glass. Don't break it, Ben.1-5 CABABⅡ.图片理解看图听描述，选择与你所听到的描述内容相符合的选项。（下列图中有一幅图片与描述内容无关）6.Alice can't use the chopsticks well.7.Tom doesn't dare tospeakin public8.The thing is used forkeeping food cool and fresh.9. Could you please tell me how to get to the zoo?10. Alan always goes shopping online.6—10 CDABEⅢ.对话问答根据你所听到的对话及问题，选择正确答案。11.M:Lucy,who is the fat girl with short hair in the picture?W:Oh,it's me.But now'I'm thin.Q: What does Lucy look like in the picture?12.W: Dad,look at the toy car. It's made of wood.M: Yes. This kind of toy is safe for kids.Q: What is the toy car made of?13.M:What do you think is the most interesting festival?W: I think the Spring Festival is.Q: What does the girl think is the most interesting festival?14. W: Tony used to get to school on time, but he is often late these days. What'swrong?M: Oh, his mother is ill in hospital'and this makes him change a lot.Q: What makes Tony change a lot?15.M: Lisa, it's very easy to wash clothes with the washing machine, isn't it?W: Yes.Look at my new washing machine. It was made in China.Q: Where was the new washing machine made?11-15 BCCACTV.听较长对话，选择正确答案听第一段对话，作答第16～17小题。W:With many pink flowers,the tree in front of our house is so beautiful.I want to puta table under it, Dad.M:Sounds good,Sara.How about this small glass table?W: Well, I think a table made of wood would be better.M: Um... OK. I can make one! Would you like to help me?W: No problem. You're the best, Dad!听第二段对话，作答第18～20小题。M: Hi,Alice. Don't you remember me?W: Oh, sorry.M: I am Jerry. We were in the same class in Nanshan Primary School.W: Oh, I remember it now. Jerry, you used to be very short, didn't you?M: Yes, I was not tall.W:Butyouaretall andstrongnow.Didyouusetoplaybasketballafterschool?-a-

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物理试卷注意事项：1.答题前，考生务必用黑色碳素笔将自己的姓名、准考证号、考场号、座位号在容题卡上填写清楚。2.每小题选出答案后，用2B铅笔把答题卡上对应题目的答案标号涂黑。如需改动，用橡皮擦干净后，再选涂其他答案标号。在试题卷上作答无效。3.考试结束后，请将本试卷和答题卡一并交回。满分100分，考试用时75分钟。一、选择题：本题共10小题，共46分。在每小题给出的四个选项中，第1～7题只有一项符合题目要求，每小题4分；第8～10题有多项符合题目要求，每小题6分，全部选对的得6分，选对但不全的得3分，有选错的得0分。1.将一可视为质点的物体从t=0时刻竖直向上抛出，不计空气阻力，下列关于运动过程中加速度α、速度与时间t的关系可能正确的是afatABCD2.撑杆跳运动员在空中的状态如图1所示，假设运动员在最高点手离开杆，忽略空气阻力，下列说法正确的是A.运动员到最高点的速度为0B.运动员到最高点的加速度为0C.运动员在撑杆离地到最高点的过程中受重力和杆对他的作用力D.运动员在撑杆离地到最高点的过程中受重力、向心力和杆对他图1的作用力3.下列关于原子物理知识的说法正确的是A.B衰变中产生的β射线是原子核外电子挣脱原子核束缚后形成的B.天然放射现象说明了原子核是有内部结构的C.2Rn的半衰期是3.8天，4个Rn经过3.8天一定还剩2个g%Rn未衰变D.在核反应中，由于存在质量亏损，满足电荷数守恒，不满足质量数守恒物理·第1页（共6页）

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姓名考号学校线班级02.下列实验装置和操作不能达到实验目的的是一、选择题：本题共15小题，每小题3分，共45分。在每小题给出的四个选项中，只有一项皮擦擦干净后，再选涂其它答案标号。定的位置上。注意事项：2。答选择题时，必须使用 2B 铅笔将答题卡上对应题目的答案标号涂黑，如需改动，用橡1国号0号06B. 利用装置②检验铜与浓硫酸反应的氧化产物A利用装置①吸收氨气并防倒吸D.掩埋废旧电池不会造成环境污染C.煤的液化可以提高煤的利用率，降低煤污染B.低碳生活注重节能减排，尽量使用太阳能等代替化石燃料，减少温室气体的排放A.卡塔尔世界杯用球“旅程”使用水性涂料代替有机涂料，更加环保化学与生产、科技和生活密切相关，下列叙述错误的是4。所有题目必须在答题卡上作答，在试题卷上答题无效。3. 答非选择题时，必须使用 0.5 毫米黑色签字笔，将答案书写在答题卡规定的位置上。是符合题目要求的。可能用到的相对原子质量：H—1C—12 0—16S—325.考试结束后，只将答题卡交回。实验室可利用装置制备SO2装置③用 CCL4 萃取碘水中的碘，振荡、放气高中2026届学月滚动综合能力检测（二）本试卷分选择题和非选择题两部分。满分 100 分，考试时间 75 分钟。010009国考1号6·10月卷2·化学第1页（共8页）C②实验结束后烧瓶中残留物水化学班级A?姓名棉柔OFTFTNESS固体NaSO包

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